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<title>Journal of Health Disparities Research and Practice</title>
<copyright>Copyright (c) 2019 University of Nevada, Las Vegas All rights reserved.</copyright>
<link>https://digitalscholarship.unlv.edu/jhdrp</link>
<description>Recent documents in Journal of Health Disparities Research and Practice</description>
<language>en-us</language>
<lastBuildDate>Sat, 10 Aug 2019 02:47:46 PDT</lastBuildDate>
<ttl>3600</ttl>


	
		
	

	
		
	

	
		
	

	
		
	

	
		
	

	
		
	

	
		
	

	
		
	

	
		
	

	
		
	

	
		
	

	
		
	

	
		
	

	
		
	

	
		
	

	
		
	

	
		
	

	
		
	

	
		
	

	
		
	




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<title>Functional Analysis of Single Nucleotide Polymorphisms Associated with Type 2 Diabetes</title>
<link>https://digitalscholarship.unlv.edu/jhdrp/vol12/iss4/52</link>
<guid isPermaLink="true">https://digitalscholarship.unlv.edu/jhdrp/vol12/iss4/52</guid>
<pubDate>Thu, 08 Aug 2019 13:20:11 PDT</pubDate>
<description>
	<![CDATA[
	<p>Type 2 diabetes (T2D), a metabolic disorder characterized by insulin resistance and relative insulin deficiency, is a life-long, common, complex disease of major public health importance. To date, there have been 86 published studies that have reported 639 associations between single nucleotide polymorphisms (SNPs) and T2D in the GWAS Catalog database, and others studies in literature. However, the majority (~93%) of the SNPs emerging from these studies are located within noncoding sequence, complicating their functional evaluation. Recently, several lines of evidence have suggested the involvement of a proportion of such variants in transcriptional regulatory mechanisms, including modulation of promoter and enhancer elements and enrichment within expression quantitative trait loci (eQTL). In this study, we downloaded T2D-associated SNPs from GWASdb, a derived database that included the data from GWAS Catalog. We then annotated them with transcription factor (TF) motif, promoter/enhancer, and eQTL information followed by the construction of a TF-target network module, in order to better detect the underlying mechanism of genetic variants involving in T2D. We found that T2D associated SNPs were significantly enriched with functional information. In addition, we found that functional annotations could significantly improve the power of detecting causal variants and understanding their pathogenesis. Using the data collected from the Gene-Tissue Expression Project (GTEx), we could further find the target genes for those eQTL SNPs.  When cross-referencing with the Drug Bank database, we were able to discover certain drugs that might regulate the expression of these genes and fight against T2D.</p>

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<author>Serdjan Rolovic et al.</author>


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<title>Effects of Epac1 on Diabetic Retinal Inflammation</title>
<link>https://digitalscholarship.unlv.edu/jhdrp/vol12/iss4/51</link>
<guid isPermaLink="true">https://digitalscholarship.unlv.edu/jhdrp/vol12/iss4/51</guid>
<pubDate>Thu, 08 Aug 2019 13:20:01 PDT</pubDate>
<description>
	<![CDATA[
	<p>An ever-growing body of research suggests that inflammation is one of the primary causes of diabetic retinopathy, as the inflammation can lead to insulin resistance. Beta-adrenergic receptor agonists can reduce the inflammation in human retinal endothelial cells (HRECs), but are not a viable treatment due to systemic effects. Epac1 lies downstream of beta-adrenergic receptor signaling, and it may have the capability to reduce inflammation by acting as an alternative pathway for beta-adrenergic receptor agonists to block inflammatory cytokines such as tumor necrosis factor-alpha (TNF-alpha) and interleukin-1 beta (IL-1B). We hypothesized that the Epac1 agonist will decrease cytokine levels, leading to improved insulin signal transduction in the retina.</p>
<p>HRECs  were grown in normal (5mM) or high glucose (25mM).  Some cells were not treated with the Epac1 agonist and serve as controls. Western blotting was done using primary antibodies for total and phosphorylated insulin receptor substrate-1 (IRS-1), insulin receptor (IR) and Akt, as well as beta actin as a control for loading.  Anti-Rabbit IgG/HRP was used for secondary antibodies. ELISA analyses were done for protein levels of TNF-alpha and IL-1B.  We are not done with data analyses, but we expect to find that Epac1 will increase insulin receptor and Akt phosphorylation, while reducing TNF-alpha and IL-1B levels.</p>

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<author>Claire Hawthorne et al.</author>


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<title>Assessment of Childhood Obesity Prevalence and Prevention Efforts in a Wisconsin Tribal Community</title>
<link>https://digitalscholarship.unlv.edu/jhdrp/vol12/iss4/50</link>
<guid isPermaLink="true">https://digitalscholarship.unlv.edu/jhdrp/vol12/iss4/50</guid>
<pubDate>Thu, 08 Aug 2019 13:19:52 PDT</pubDate>
<description>
	<![CDATA[
	<p>American Indian children experience disproportionately high rates of obesity, yet tribal communities often lack capacity to utilize local obesity data to guide prevention efforts. It is estimated the prevalence of childhood obesity in a Wisconsin tribal community and identified local school-based obesity prevention initiatives. Height and weight data were collected for children ages 2-19 years through routine screenings at local Head Start centers and schools.  Weight status was determined based on BMI percentile according to year 2000 CDC growth charts.</p>
<p>Summary statistics and chi-square tests were generated to examine differences in obesity prevalence by age and gender.  An environmental scan that included key informant interviews, document reviews, and photo-mapping was conducted to identify local obesity prevention initiatives. A total of 820 children were screened during the 2013-2014 school year.<strong>  </strong>In total, 31% of children were obese and 24% were overweight.  Obesity prevalence was lower among children ages 2-5 years (20%) than among children ages 6-11 (34%) and 12-19 years (34%) (p< .01) but did not differ by gender.</p>
<p>Local prevention initiatives included adoption of recommended nutrition guidelines for school meals, school-based programs to improve nutrition and increase physical activity, and changes to the physical environment to increase access to healthy foods and promote physical activity. Childhood obesity prevalence was higher in our sample compared to national prevalence estimates.  Local schools have made strides in implementing obesity prevention initiatives.  Ongoing monitoring of local childhood obesity prevalence may facilitate planning and evaluation of future prevention efforts.</p>

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<author>Simone Tucker et al.</author>


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<title>Drug Discovery of Novel Targeted Therapeutics for Metastatic Breast Cancer</title>
<link>https://digitalscholarship.unlv.edu/jhdrp/vol12/iss4/49</link>
<guid isPermaLink="true">https://digitalscholarship.unlv.edu/jhdrp/vol12/iss4/49</guid>
<pubDate>Thu, 08 Aug 2019 13:19:42 PDT</pubDate>
<description>
	<![CDATA[
	<p>Metastatic disease is the primary cause of breast cancer mortality, due to the lack of effective therapy. The Rho GTPase Rac is integral for the promotion of cancer cell migration/invasion, proliferation, and survival. Since metastatic breast cancers often overexpress or exhibit high Rac activity, inhibition of Rac is a viable strategy against metastatic cancer. Recently, we characterized EHop-016, a small molecule that inhibits Rac activity of metastatic breast cancer cells more efficiently than previously available Rac inhibitors (IC<sub>50</sub> of 1µM). EHop-016 inhibits the activity of the Rac downstream effector p21 activated kinase and cell migration of metastatic breast cancer cells.</p>
<p>We also reported that EHop-016 at ≥ 25mg/kg body weight significantly reduced tumor growth and metastasis in mice. However, our recent pharmacokinetic study of EHop-016 in a mouse model demonstrated that the bioavailability of Ehop-016 needs to be improved for pharmacological development. The hypothesis<strong> </strong>is that improvement of the EHop-016 structure will provide probes with increased potency against Rac and, therefore, increased bioavailability.</p>
<p>Several Ehop-016 derivatives have been tested for their effects on breast cancer cell viability using the MTT assay. We found one compound, HV-107, which at concentrations ≥1µM inhibits the viability of metastatic breast cancer cell lines MDA-MB-231 and MDA-MB-435 by 45%. The effects of HV-107 on the inhibition of Rac activation were tested by pulldown assays. At 250nM, HV-107 inhibits Rac activation by 55% in MDA-MB-231 and MDA-MB-435 cells. Taken together, our findings suggest HV-107 has potential as an anti-metastatic agent and should, therefore, be further characterized.</p>

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<author>Dayralee Torres et al.</author>


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<title>Determining Fish Mercury Levels: An Alaska Native/Napaskiak Subsistence Food Source</title>
<link>https://digitalscholarship.unlv.edu/jhdrp/vol12/iss4/48</link>
<guid isPermaLink="true">https://digitalscholarship.unlv.edu/jhdrp/vol12/iss4/48</guid>
<pubDate>Thu, 08 Aug 2019 13:19:26 PDT</pubDate>
<description>
	<![CDATA[
	<p>Alaska Natives living in rural areas rely on subsistence fishing throughout the year as their primary source of food. The purpose of this project is to determine the levels of mercury (Hg) in fish commonly consumed by Alaska Natives. Mercury naturally cycles throughout the environment between air, water, and land. Because it is a heavy metal, when it enters an ocean, lake, or river it sinks to the bottom where plankton, bottom feeder fish, and organisms consume it. Mercury becomes dangerously concentrated as it passes through the food chain through a process called biomagnification. Biomagnification occurs when a small fish with low levels of mercury is consumed by a bigger fish that is then consumed by a bigger fish. Each time a fish is consumed higher up on the food chain the concentration of mercury biomagnifies. The primary route of exposure to Hg for humans is through fish consumption. Studies show that consuming fish with high levels of mercury can lead to adverse health effects. Our project will examine the levels of mercury in three types of fish using an atomic absorption Hg analyzer: king salmon (<em>Oncorhynchus tshawytscha</em>), chum salmon (<em>Onocorhynchus keta</em>), and pike (<em>Esox Lucius</em>). Results are pending on completion of analysis. We hypothesize that pike fish will contain the highest level of mercury due to its nature of feeding at the bottom of the river.</p>

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<author>Jackelyn Steven et al.</author>


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<title>Synthesis and Characterization of Reinforced Chitosan Hydrogels for Bone Tissue Regeneration</title>
<link>https://digitalscholarship.unlv.edu/jhdrp/vol12/iss4/47</link>
<guid isPermaLink="true">https://digitalscholarship.unlv.edu/jhdrp/vol12/iss4/47</guid>
<pubDate>Thu, 08 Aug 2019 13:19:15 PDT</pubDate>
<description>
	<![CDATA[
	<p>Chitosan is the second most abundant natural polymer; it is biodegradable, biocompatible and bioactive. Even though chitosan has been used in various biomedical studies due these characteristics, its mechanical properties are the subject of investigations, as they still need to be improved. Therefore, a hydrogel prepared from composites of chitosan, polycaprolactone and nanodiamonds may offer enhanced mechanical properties compared to pure chitosan. We hypothesize that the mechanical properties of the hydrogel composites will be superior to the unaltered chitosan, while preserving the advantages of the material.<strong> </strong>The solutions were prepared using chitosan 1.5 wt%, PCL 5 wt% and nanodiamonds 0.016% suspended solutions. Triton X-100 was used as an emulsifier. The solutions were left in the -20 °C overnight prior lyophilization. The microemulsion technique was used in order to fabricate a porous hydrogel. Further analysis will be made, to characterize the hydrogels. Preliminary results suggest the successful formation of an aerogel based on their physical appearance. Additional studies are needed to fully understand the desired properties of the composite.</p>

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<author>Alanis E. Rodríguez-Rosario et al.</author>


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<title>Bioanalytical Assay of Antimicrobial Polymers Binding to Bacterial Cells</title>
<link>https://digitalscholarship.unlv.edu/jhdrp/vol12/iss4/46</link>
<guid isPermaLink="true">https://digitalscholarship.unlv.edu/jhdrp/vol12/iss4/46</guid>
<pubDate>Thu, 08 Aug 2019 13:19:01 PDT</pubDate>
<description>
	<![CDATA[
	<p>Branched polyethylenimine (BPEI) has an antimicrobial effect on bacteria. The killing mechanism of BPEI centers on its cationic properties. The mechanism of action against Gram-positive bacteria is less understood but recent reports erroneously suggest that membrane depolarization occurs. To the contrary, data from our laboratory suggests that BPEI binds to the anionic sites provided by the biopolymer wall teichoic acid (WTA). To test the validity of this hypothesis, we measure the amount BPEI binding to whole, intact, bacterial cells of <em>Bacillus subtilis</em>. Comparative measurements are made with <em>Bacillus subtilis </em>bacteria that contain WTA and <em>Bacillus subtilis </em>genetic mutants that lack WTA.</p>
<p>Using equilibrium dialysis, <em>Bacillus subtilis </em>bacteria were exposed to different solution concentrations of BPEI. Removal of small aliquots from solution and subsequent assay with the ninhydrin test were used to measure the amount of BPEI remaining in solution and the amount of BPEI bound to the bacterial cell walls. These data were used to obtain the amount of bound vs. unbound BPEI and determine the equilibrium constant. These data influence the understanding of BPEI antimicrobial properties and impacts the development of antibiotics to treat human disease.</p>

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<author>Natalia Roberts et al.</author>


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<title>Using DREADD to Examine the Role of Infralimbic Gq-coupled Receptors in Fear Acquisition</title>
<link>https://digitalscholarship.unlv.edu/jhdrp/vol12/iss4/45</link>
<guid isPermaLink="true">https://digitalscholarship.unlv.edu/jhdrp/vol12/iss4/45</guid>
<pubDate>Thu, 08 Aug 2019 13:18:51 PDT</pubDate>
<description>
	<![CDATA[
	<p>Post-Traumatic Stress Disorder (PTSD) can develop after a person experiences a very traumatic event that produces a strong and long-lasting aversive memory. During any given year, approximately 8 million adults will suffer from PTSD. Existing treatments often fail to achieve a full extinction of the traumatic fear the patients re-experience. Consequently, how the brain processes and modulates fear memories continues to be an active area of research. The excitability of the infralimbic cortex (IL), a sub-region of the medial prefrontal cortex, is important for fear extinction. Previous studies done in our lab found that Gq-coupled receptors located in this region of the brain, specifically muscarinic and mGluR5 receptors play a critical role in the consolidation of extinction memory. However, their effect on the acquisition of fear is still unknown.</p>
<p>Thus, the main purpose of this research is to determine whether the activation of Gq-coupled receptors in IL prior to the learning of fear affects fear memory. We hypothesized that stimulation of these receptors during fear conditioning would decrease acquired fear. To test this, we utilized a pharmacogenetic approach in the form of Designer Receptors Exclusively Activated by Designer Drugs (DREADD), which allow for controlled manipulation of the desired area in the brain using the selective agonist CNO. Adult male Sprague Dawley rats were surgically infused with a virus, which expressed a Gq-coupled DREADD. Three weeks later, the rats will be injected with CNO one hour prior to behavioral training and sacrificed for immunohistochemistry to examine neuronal activity.</p>

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<author>Héctor A. Haddock Martínez et al.</author>


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<title>Translocator Protein in Brain Tissue and Neurodegeneration</title>
<link>https://digitalscholarship.unlv.edu/jhdrp/vol12/iss4/44</link>
<guid isPermaLink="true">https://digitalscholarship.unlv.edu/jhdrp/vol12/iss4/44</guid>
<pubDate>Thu, 08 Aug 2019 13:18:40 PDT</pubDate>
<description>
	<![CDATA[
	<p>Neurodegenerative disorders, such as Alzheimer's Disease, effect over 50 million Americans a year, and despite the high prevalence, the pathogenesis of these diseases remains unclear. However, researchers have noticed a dramatic up-regulation of a protein called translocator protein (TSPO) under neurodegenerative and neuro-inflammatory conditions. While TSPO expression is prevalent in the brain, it is still unclear as to what exact types of cells TSPO is expressed in, and what mechanisms result in increased expression. Regulating the expression or function of TSPO is believed to have an impact on neurodegenerative processes, but definitive evidence of this is also limited. To advance our understanding we will examine what cells TSPO is expressed in, and reveal what effects TSPO agonists and antagonists will have on brain activity patterns using electroencephalography. Some research has found that certain TSPO ligands have potential to be therapeutic agents for neurodegeneration, neuro-inflammation and neurotrauma. Therefore, localization of TSPO in brain tissue and investigation of the mechanism by which it becomes activated, may allow for the development of novel treatments for neurodegenerative issues such as Alzheimer's.</p>

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<author>Kayla Bland et al.</author>


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<title>Patterned Electro-spun Fibers Capture Exosomes Produced from Single Cells</title>
<link>https://digitalscholarship.unlv.edu/jhdrp/vol12/iss4/43</link>
<guid isPermaLink="true">https://digitalscholarship.unlv.edu/jhdrp/vol12/iss4/43</guid>
<pubDate>Thu, 08 Aug 2019 13:18:31 PDT</pubDate>
<description>
	<![CDATA[
	<p>Cancer and its curiosities have been researched throughout the scientific community with little results. Several studies have been unable to use a single treatment to cure the cells as each cancerous cell is unique in its molecular coding, and are often immune to different kinds of treatments.</p>
<p>The purpose of the experiment is to determine whether exosomes in cancer cells can communicate with other cells and create an immunity to treatment. There were multiple steps in the process of attaching cells to an electro-spun fiber sheet and analyzing the exosomes captured. The first step was to take increments of 0.4 ug/ml of biotin to attach a 1-100 dilution of biotinylated anti-CD63, and an APC of anti-CD81 to the sheet. Then, using fluorescent antibodies, we are able track the movement of breast cancer cells and capture the exosomes from the single cells. The transportation of exosomes through multiple cells are thought to have the ability to communicate with another mutated cell to resist the cancer treatment. By acknowledging these cells, it may be possible to isolate them to prevent the proliferation of altered cells. The experiment is ongoing and there are yet to be conclusive results.</p>

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<author>Sage Bingaman et al.</author>


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<title>A Novel Ultrasound-based Measure of the Liver among Diabetes Mellitus Type II Patients</title>
<link>https://digitalscholarship.unlv.edu/jhdrp/vol12/iss4/42</link>
<guid isPermaLink="true">https://digitalscholarship.unlv.edu/jhdrp/vol12/iss4/42</guid>
<pubDate>Thu, 08 Aug 2019 13:18:20 PDT</pubDate>
<description>
	<![CDATA[
	<p>Diabetes mellitus type II (DM II) or adult onset diabetes is due to the inefficient use of insulin, which affects various organs and tissues. Patients with DM II are at risk of suffering non-alcoholic fatty liver disease (NAFLD) that can later develop into more life threating forms such as hepatomegaly, cirrhosis or liver cancer. Following the logic of the non-inferiority trial test, we aim to establish a more accurate anatomical measure of the right liver lobe (RLL) to facilitate close monitoring of liver size with ultrasound (US). We hypothesize that US is not unacceptably worse than computed tomography (CT) or magnetic resonance imaging (MRI) to accurately and reliably measure the size of the RLL when the measure is taken in the midaxillary line and craniocaudal plane (MAL-CC). Therefore, the objective of this study is to conduct a non-inferiority trial to test our novel MAL-CC measure.</p>
<p>To meet this aim, US measure of the RLL was taken from DM II (n=7) and non-DM II (n=5) patients, whom were recruited from 2 endocrinology clinics at SoM-UPR. Preliminary data shows that MAL-CC measure of the RLL from non-DM II patients is 13.99 + 2.53 cm whereas the same measurement among DM II patients is 15.25 + 3.25 cm (Mann-Whitney U test, p= 0.42). It is concluded that there is a non-significant trend for large RLL sizes among DM II patients. Future work aims to increase sample size and to validate our novel measurement with MRI.</p>

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<author>Carlos I. Ayala Santos et al.</author>


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<title>Seasonal and Diurnal Patterns of Pollens and Their Relations with Asthma and Allergies</title>
<link>https://digitalscholarship.unlv.edu/jhdrp/vol12/iss4/41</link>
<guid isPermaLink="true">https://digitalscholarship.unlv.edu/jhdrp/vol12/iss4/41</guid>
<pubDate>Thu, 08 Aug 2019 13:18:10 PDT</pubDate>
<description>
	<![CDATA[
	<p>According to the CDC, 22.4% of the population in Puerto Rico suffers from asthma, increasing in children to a 25.3%. Allergic asthma is a respiratory condition caused by allergens such as mite- dust, fungal spores, and pollen. Asthma symptoms can include lack of air and chronic cough. Biological airborne particles may produce proteins with allergenic potential that at high levels may trigger asthma in susceptible individuals.</p>
<p>To determine the role of tree pollen in asthma, we analyzed the daily data collected from 2015 to 2017 with a Burkard volumetric air sampler located 73 meters above sea level at the San Juan (SJ) Station of the American Academy of Allergy Asthma and Immunology. With the meteorological factors obtained from the Airport Station of National Weather Service in SJ we determined that the tree pollens are present during the dry season (January-March), decrease during the summer and re-appears during the rainy season (September-November). Diurnal variation of <em>Cecropia scheberiana</em>, the most common tree pollen in Puerto Rico (PR), presents highest levels of pollen at night and lower during the day. Therefore, like fungal spores, tree-pollen in PR has a circadian rhythm with low concentrations during the day and higher at night.</p>
<p>This investigation will have an important impact on the management of asthma as the exposure to pollen and fungal spores can be prevented using a HEPA filter air purifier. Also there will be no need to restrict children indoors during the day as the pollen and spores are at low concentrations.</p>

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<author>Jeremy Rivera Sánchez et al.</author>


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<title>Depression in Those with Diabetes</title>
<link>https://digitalscholarship.unlv.edu/jhdrp/vol12/iss4/40</link>
<guid isPermaLink="true">https://digitalscholarship.unlv.edu/jhdrp/vol12/iss4/40</guid>
<pubDate>Thu, 08 Aug 2019 13:17:58 PDT</pubDate>
<description>
	<![CDATA[
	<p>In the United States, depression and diabetes collide with greater frequencies in American Indian/Alaskan Native communities, with 15% of those with diabetes suffering from depression. Often, providers cannot describe the emotional effects of being diagnosed with a chronic illness, such as diabetes, to the patient. Diabetes bingo is a place of information and support for those with diabetes in the Lower Sioux Indian Community (LSIC). The group was given surveys during their once-monthly bingo session held by the Lower Sioux Health Care Center Dietitian. We hypothesize that the social and emotional support from peers is what drives members of the LSIC back to bingo. At least one person had screened on the upper half on the depression scale, out of the sample group of 7. The first survey asked the sample group what drew them back to bingo, and 100% responded with support, while most added they also value the information. This is congruent with our hypothesis. The second step of the research was giving each person the patient health questionnaire (PHQ-9), to obtain a gauge of the presence of depression. Out of the sample size of 7, 1 person screened on the brink of moderately severe depression, while the other 6 had screenings at the lowest level: mild depression. These findings indicate that depression is likely present in the diabetic community of LSIC. The results can be used in future projects, to determine the effectiveness of diabetes bingo, and to provide referral of services and support.</p>

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<author>Jaidyn Probst et al.</author>


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<title>Computational Oxalate-Curcumin Based Probe Molecules for Functionality in Alzheimer&apos;s Disease</title>
<link>https://digitalscholarship.unlv.edu/jhdrp/vol12/iss4/39</link>
<guid isPermaLink="true">https://digitalscholarship.unlv.edu/jhdrp/vol12/iss4/39</guid>
<pubDate>Thu, 08 Aug 2019 13:17:48 PDT</pubDate>
<description>
	<![CDATA[
	<p>Alzheimer's Disease (AD), is a progressive neurodegenerative disease that is fatal.  Amyloid β (Aβ) aggregates are produced in the relation between AD and its later stages. While AD is not necessarily present because of the Aβ aggregates, they are however a cohesive sublimate of each other within the later stages of the disease. Currently there are no drug preventative measures that have been successful in bringing treatment to the Aβ aggregates. It has been shown that AD had been most closely associated with the production of Aβ aggregates in relation to the progression of the disease. However, in regards to the lack of preventative measures in Aβ aggregates it is suggested that reactive oxygen species (ROS) should be taken into consideration when taking drug related measures. Specifically speaking it has been found that ROS levels are significantly higher in brains with AD than in brains that are healthy.  Taking into consideration both the ROS levels, as well as the Aβ aggregates, it can be beneficial in detecting AD early on in order to take preventative measures.</p>
<p>CRANAD-X is a family of curcumin analogue molecules which have previously been used in NIRF (Near Infra-Red Fluorescence spectroscopy) imaging. This study is to show the computa-tional values of each prospective system for an experimental value such as excitation, emission, and wavelength emission. Experimental values found in this computational study will help to further a close approximation to other molecules that are similar in structure in other experimental investigations. Similar molecules found in this study could be used for probes to detect Aβ aggregates, and ROS levels.</p>

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<author>Elizabeth Phillips et al.</author>


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<title>Parents’ Perception of Overweight in Relation to Child Mood and Disordered Eating</title>
<link>https://digitalscholarship.unlv.edu/jhdrp/vol12/iss4/38</link>
<guid isPermaLink="true">https://digitalscholarship.unlv.edu/jhdrp/vol12/iss4/38</guid>
<pubDate>Thu, 08 Aug 2019 13:17:37 PDT</pubDate>
<description>
	<![CDATA[
	<p>Parental perception of their child’s weight may impact child’s psychological functioning; however, there is a dearth of literature examining this relationship. Data suggest that parental concern with child’s overweight may be related to child distress and/or disordered eating. Yet, it is unknown if parents’ perception of teens’ overweight relates to child functioning. We examined 113 adolescent (12-17y; 14.4 ± 1.6) boys and girls (53% girls) with overweight or obesity (BMI<em>z</em> 2.0 ± .45) and their parents. Youth self-identified as 53% Caucasian or White, 27% Black or African American, 3.5% Asian, and 16.5% multiple races, unknown, or other. Parents reported on their perception of their child’s overweight as either “somewhat/sometimes true” and “very/often true.” Teens reported on their symptoms of anxiety and depression and whether they had experienced loss-of-control eating in the past month. T-tests and Chi Square analyses were used to analyze child factors based on parent perceptions. Compared to parents who reported “somewhat/sometimes true” (n = 51), parents who reported “very/often true” (n = 62), had children with significantly higher anxiety (p = .048) and higher likelihood of reporting loss-of-control eating in the past month (p = .039). There were no differences in symptoms of depression. Including sex, race, and BMI<em>z</em> as covariates did not alter findings. In summary, youth whose parents perceive their children as more definitively overweight are more likely to report symptoms of anxiety and disordered eating. Further data are needed to determine if parental perception is related to their adolescent child’s overall well-being.</p>

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<author>Jillian Perry et al.</author>


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<title>Understanding the Impact of Fluid Viscosity on the Growth and Conjugation of Antimicrobial Resistant Donors and Recipients Pairs</title>
<link>https://digitalscholarship.unlv.edu/jhdrp/vol12/iss4/37</link>
<guid isPermaLink="true">https://digitalscholarship.unlv.edu/jhdrp/vol12/iss4/37</guid>
<pubDate>Thu, 08 Aug 2019 13:17:27 PDT</pubDate>
<description>
	<![CDATA[
	<p>To combat the spread of antimicrobial resistance (AMR), it is vital to link the behavior of donor and recipient bacteria in dynamic environments to horizontal gene transfer (HGT) potential- specifically, conjugation the primary means of spread of AMR genes. However, HGT is poorly understood under dynamic conditions, such as those in the gut of humans and animals. Most experiments are done under static conditions at viscosities similar to water, but these methods do not accurately represent the higher gut viscosities or movement. Hence, a next step to increase understanding of conjugation is with experiments using generic donor and recipient pairs at different viscosities.</p>
<p>Accordingly, it is necessary to establish the relationship between viscosity and bacterial growth in these experiments, for which our hypothesis is that the rate of bacterial growth in fluids with higher viscosities will be lower due to water displacement. To test this hypothesis, experiments were designed to measure the number of donors, recipients and transconjugant bacteria using optical density. Varying concentrations of the thickeners agar and xanthan gum will be used to achieve different viscosity levels in the media. Media of thicknesses closer to that of bodily fluids, which are more alike to pancake syrup or batter, will be evaluated. Concentrations will be tracked at half hour intervals as a means to obtain data and to formulate a growth curve model. Some preliminary results indicate that our hypothesis has a good probability of being correct. Linear growth curve models were applied to the data for comparison purposes.</p>

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<author>Judah Pemble et al.</author>


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<title>Effects of Maternal Separation and Adolescent Stress on Microglial Levels in the Adult Brain</title>
<link>https://digitalscholarship.unlv.edu/jhdrp/vol12/iss4/36</link>
<guid isPermaLink="true">https://digitalscholarship.unlv.edu/jhdrp/vol12/iss4/36</guid>
<pubDate>Thu, 08 Aug 2019 13:17:15 PDT</pubDate>
<description>
	<![CDATA[
	<p>Early life stress, such as maternal separation, has been associated with depressive-like symptoms in adult rats. Previous studies have linked depression with reduced activation of microglia in different parts of the brain. Microglia are important for neuronal transmission and plasticity, both of which are affected by stress.  However, whether developmental stress alters microglial function to cause depression in adulthood is not fully understood. We hypothesized that exposing rats to early life stress would lead to depressive-like symptoms in adults that would be associated with reduce microglial levels in the brain. To test this hypothesis, male and female rats were maternally separated for 3 hours a day starting at post-natal day 1 for 14 days. After the rats reached adolescence (P28), they were exposed to repeated restraint stress for 2 hours a day for 14 days. Rats were then housed in their home cages until adulthood. Then, the rats were tested in the zero maze to measure their anxiety and the forced swim test to measure their depressive-like behaviors. Compared to the control group that did not receive maternal separation or restraint stress, the stressed female rats showed more depressive-like behaviors. We are currently quantifying microglial activity via western blots of the microglial marker Iba-1 to determine whether the increased depressive-like behavior correlates with changes in microglia in specific brain regions.</p>

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</description>

<author>Joseph Noel-Torres et al.</author>


</item>




<item>
<title>Exploring Sexual Transmitted Infections Rates within the High School Populations and Sexual Health Behaviors within a Community College Population: The Need to Provide Effective Sexual Education Programs</title>
<link>https://digitalscholarship.unlv.edu/jhdrp/vol12/iss4/35</link>
<guid isPermaLink="true">https://digitalscholarship.unlv.edu/jhdrp/vol12/iss4/35</guid>
<pubDate>Thu, 08 Aug 2019 13:17:04 PDT</pubDate>
<description>
	<![CDATA[
	<p>Sexually Transmitted Infection (STI) is an umbrella term for bacterial, viral and parasitic infections that are transmitted through sexual contact. California Department of Public Health data ranks Kern County second worst in the state for congenital syphilis and chlamydia, third worst in the state for primary and secondary syphilis, and seventh worst in the state for gonorrhea. The incidence rates continue to increase in Kern County and especially within teenage and young adult populations.</p>
<p>This study explored the patterns and characteristics of STI incidence rates in Kern High School District (KHSD) and sexual health behaviors in a local community college.  After reviewing five-year incidence rates of 18 high schools representing both urban and rural areas, there appeared to be no clear pattern among demographics, poverty and rural area between the schools and corresponding STI incidence rates. Key informant interviews were conducted to further investigate underlying contributors to the varying STI rates within Kern County.</p>
<p>The second part of the study explored young adult sexual health behaviors. Serving as a strong pipeline from high school to community college, approximately one-third of the Kern High School District attend the Kern Community College District. Bakersfield College completed an American College Health Association Health Assessment (ACHA) to assess health center needs. The study reviewed ACHA survey data (n=1483) to identify sexual health behaviors. Results from the study will be presented to local public health professionals and school educators to examine the need for more comprehensive and effective sexual health programs.</p>

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</description>

<author>Erika McPhetridge et al.</author>


</item>




<item>
<title>Exploring Characteristics of Condom Use among a College Population</title>
<link>https://digitalscholarship.unlv.edu/jhdrp/vol12/iss4/34</link>
<guid isPermaLink="true">https://digitalscholarship.unlv.edu/jhdrp/vol12/iss4/34</guid>
<pubDate>Thu, 08 Aug 2019 13:16:54 PDT</pubDate>
<description>
	<![CDATA[
	<p>The increasing lack of condom use puts young people at risk for a Sexually Transmitted Infection (STI), which can lead to long term health consequences. This study was administered within Kern County, California. Kern County ranked second worst in California for chlamydia, and fourth worst for primary and secondary syphilis (California Department of Public Health, 2018).  The study used archival data from Bakersfield College, which administered the American College Health Care Administrations (ACHA) survey as a need assessments and to drive health education plans.</p>
<p>Bakersfield College students (N=1,483) completed the survey of which 36 questions pertained to sexual behavior and condom use. ACHA revealed that aggregated 88% of students (n=1,067) do not regularly or ever use condoms during oral sex.  Similarly, 63% students (n=1,084) indicated they do not regularly or ever use condoms during vaginal sex. The study used SPSS analytics to explore condom use and characteristics (i.e, STI information received, sexual behavior, relationships, and/or race).</p>
<p>Chi-Square results showed there was no statistically significant difference in condom use in vaginal sex between those who received information on STIs compared to those who did not receive information. However, there was statistically significant difference in condom use for those who reported condom use during anal sex in the last 30 days and received information about STIs, χ2(1) = 4.984, p = .026. The study findings will be used to better inform health education campaigns to promote condom use among the college age population.</p>

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</description>

<author>Erika McPhetridge et al.</author>


</item>




<item>
<title>Effects of a Histone Methyltransferase Inhibitor on Fertility on a Rat Model of Endometriosis</title>
<link>https://digitalscholarship.unlv.edu/jhdrp/vol12/iss4/33</link>
<guid isPermaLink="true">https://digitalscholarship.unlv.edu/jhdrp/vol12/iss4/33</guid>
<pubDate>Thu, 08 Aug 2019 13:16:43 PDT</pubDate>
<description>
	<![CDATA[
	<p>Endometriosis is an estrogen-dependent, inflammatory disease that affects 5-10% of women of reproductive age. It is defined as the growth of functioning endometrium outside the uterus that results in severe pelvic pain and often infertility. Currently, endometriosis has no cure, and available treatments have limited efficacy and side effects. Epigenetics play a key role in the etiology of this disease, and we have previously shown that treatment with histone methyltransferase inhibitors (HMTi) in an animal model of endometriosis significantly decreases vesicle development, suggesting the potential use of epigenetic drugs for endometriosis. The objective of this study was to investigate the effects of HMTi on fertility by analyzing the effects of the drug on expression of fertility genes in this model. Endometriosis induction was performed in female Sprague Dawley rats. Two weeks after, rats were treated intraperitoneally with HMTi for four weeks. At sacrifice, uterine tissues were collected and mRNA extracted to study fertility gene expression using a real-time polymerase chain reaction (RT<sup>2 </sup>Profiler PCR Array). HMTi treatment modified the expression of a limited number of genes (2 out of 84), and increased the expression of key genes related to embryonic implantation and development of the ovary. These observations suggest that HTMi has a positive effect on fertility, a possibility that requires additional investigations in vivo.</p>

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</description>

<author>Diego Garcia et al.</author>


</item>




<item>
<title>nvestigating the Aquatic Ecosystem of the Kenektok River in Quinhagak, Alaska</title>
<link>https://digitalscholarship.unlv.edu/jhdrp/vol12/iss4/32</link>
<guid isPermaLink="true">https://digitalscholarship.unlv.edu/jhdrp/vol12/iss4/32</guid>
<pubDate>Thu, 08 Aug 2019 13:16:33 PDT</pubDate>
<description>
	<![CDATA[
	<p>Water quality is defined by several characteristics: chemical, physical, biological, and radiological. Water quality is important in Alaskan communities due to the reliance of subsistence hunting like fishing to meet cultural and spiritual needs. A healthy aquatic system is achieved when water quality is not altered or disturbed. The objective of this project is to determine the water quality of the Kenektok River in Quinhagak, Alaska. The La Motte Water monitoring kit was used in this project to determine any chemical, physical, biological, and radiological disturbances. Three water samples were taken from different locations, approximately 1 meter apart, along the Kenektok River, and each were tested for coliform bacteria, dissolved oxygen, biochemical oxygen, nitrate, pH, turbidity, temperature, and phosphate. Across all testing sites, dissolved oxygen, biochemical oxygen, nitrate, pH, turbidity, phosphate was ranked good to excellent quality. However, each testing site was positive for coliform bacteria. Further investigation of these sites will be needed in order to confirm if the Kenektok River aquatic ecosystem has been disturbed.</p>

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</description>

<author>Ashley Forbes et al.</author>


</item>




<item>
<title>Exploring Vanadium Chemical Transferrin Mimetic Compounds for Insulin Enhancement</title>
<link>https://digitalscholarship.unlv.edu/jhdrp/vol12/iss4/31</link>
<guid isPermaLink="true">https://digitalscholarship.unlv.edu/jhdrp/vol12/iss4/31</guid>
<pubDate>Thu, 08 Aug 2019 13:16:22 PDT</pubDate>
<description>
	<![CDATA[
	<p><em>Diabetes Mellitus </em>(DM) is caused by a lack of insulin production (Type 1) or the body’s cells’ inability to properly receive it, also known as insulin resistance (Type 2), resulting in greatly elevated levels of blood glucose. Vanadium(IV) and vanadium(V) ions are believed to enhance insulin activity by inhibition of protein tyrosine phosphatase 1B (PTP1B). PTP1B is normally responsible for downregulating the insulin signaling, but in DM type 2, PTP1B activity is overexpressed leading to the insulin signaling blocking. The most promising V(IV) compounds are designed for oral delivery: they are absorbed into the gut and delivered into the bloodstream where they are bound by the iron transporting protein serum transferrin (sTf). STf delivers the compound into cells via endocytosis, where vanadium can bind PTP1B. A limitation of these compounds is their poor stability at the stomach acidic conditions in which they undergo a significant amount of dissociation, resulting in a very inefficient gut absorption. This study explores the use of a chemical transferrin mimetic (cTfm) ligand to create V(IV) and V(V) compounds featuring excellent acidic pH stability for improved gut absorption. The cTfm-V(IV,V) compounds are expected to be labile in the pH of the bloodstream and thus the vanadium species can be quickly ligand exchanged with sTF. The cTfm ligand N,N'-di(o-hydroxybenzyl)ethylenediamine-N,N'-diacetic acid (HBED) was used to synthesize VO(IV)HBED and VO(V)HBED which demonstrated great aqueous stability in the 1-4 pH range. The role of citrate as a vehicle for delivering vanadium to sTf to regulate the transport of vanadium is also examined.</p>

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</description>

<author>Amanda Feliciano et al.</author>


</item>




<item>
<title>Effect of Antioxidants in Cathepsin B Release by HIV Infected Macrophages</title>
<link>https://digitalscholarship.unlv.edu/jhdrp/vol12/iss4/30</link>
<guid isPermaLink="true">https://digitalscholarship.unlv.edu/jhdrp/vol12/iss4/30</guid>
<pubDate>Thu, 08 Aug 2019 13:16:13 PDT</pubDate>
<description>
	<![CDATA[
	<p>During HIV infection of macrophages, the lysosomal protein cathepsin B is released and induces neurotoxicity. Also, the levels of cathepsin B are increased in plasma and post-mortem brain tissue of patients with HIV-associated dementia. Oxidative damage is increased in HIV- infected patients, while antioxidants are decreased in HIV-associated dementia. Dimethyl fumarate (DMF), an antioxidant, has been reported to decrease HIV replication and neurotoxicity caused by HIV-infected macrophages. Since HIV also increases cathepsin B, we hypothesize that DMF will also reduce cathepsin B release from HIV-infected macrophages. Monocyte-derived macrophages (MDM) were isolated from healthy donors and inoculated with HIV-1<sub>ADA</sub>. After removal of infection, MDM were treated with DMF at different concentrations (15, 30, and 60 µM) until day 12 post-infection, changing and collecting media every three days. HIV-1p24 and cathepsin B levels were assessed from HIV-infected MDM supernatants at the end of cultures using ELISA. Results indicate that DMF reduced HIV-1 replication and cathepsin B secretion from HIV-infected macrophages, in a concentration-dependent manner, in comparison with vehicle (DMSO)-treated controls. However, cathepsin B secretion was not affected by HIV infection in vehicle-treated controls. In conclusion, DMSO may have had an unexpected effect in cathepsin B secretion in our experiments, and this could explain why cathepsin B secretion was not affected by HIV infection. Future experiments will include an untreated control group to determine if DMSO vehicle is having an effect in cathepsin B secretion. This will lead us to determine the role of DMF in cathepsin B secretion from HIV-infected macrophages.</p>

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</description>

<author>Luz J. Cartagena Isern et al.</author>


</item>




<item>
<title>STEP-UP: A Cultural Alaska Journey for Students and Staff</title>
<link>https://digitalscholarship.unlv.edu/jhdrp/vol12/iss4/29</link>
<guid isPermaLink="true">https://digitalscholarship.unlv.edu/jhdrp/vol12/iss4/29</guid>
<pubDate>Thu, 08 Aug 2019 13:16:02 PDT</pubDate>
<description>
	<![CDATA[
	<p>This manuscript introduces the abstracts from the University of Nevada, Las Vegas Coordinating Center</p>

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</description>

<author>Carolee Dodge Francis, Ed.D. et al.</author>


</item>




<item>
<title>Coconut Production for Food Security, Economic Development, and Health: A Comparative Study of Two Communities in Pohnpei, Federated States of Micronesia</title>
<link>https://digitalscholarship.unlv.edu/jhdrp/vol12/iss4/28</link>
<guid isPermaLink="true">https://digitalscholarship.unlv.edu/jhdrp/vol12/iss4/28</guid>
<pubDate>Thu, 08 Aug 2019 13:15:51 PDT</pubDate>
<description>
	<![CDATA[
	<p>Coconuts (<em>Cocos nucifera</em>) have been beneficial on many Pacific islands for centuries, including the island of Pohnpei. There is a current effort in Pohnpei to more fully explore the potential of coconuts in raising living standards of the local people. This study explores the status of coconut production in two communities of Pohnpei - a community on the main island of Pohnpei and one on the outer atoll of Ngatik. It is hypothesized that coconut-related activities are less intensive on the outer islands due to a lack of marketing opportunities.</p>
<p>This study involves interviewing community members and 40 households that grow coconuts - 20 from the main island community and 20 from the outer island community. In addition, coconut trees and nuts in the two communities will be characterized according to internationally recognized procedures. Data will also be collected to assess the importance of coconuts for food security, economic development, and health.</p>
<p>Data collected so far clearly indicates that coconut indeed plays a significant role in the livelihood of the two communities. However, these data show that it is not true to say that coconut plays a more significant role on the main island. Hence, the hypothesis is rejected.</p>
<p>In conclusion, even though there is less sale of coconut in the outer island, the local outer islanders use a substantial amount of it in other ways especially as human food and drink, and animal feed. This shows that they should also be seriously engaged in coconut development activities.</p>

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</description>

<author>Macmillan Willyander et al.</author>


</item>




<item>
<title>Protective Effects of Insulin in Cardiomyocytes Against Iron-mediated Cell Death</title>
<link>https://digitalscholarship.unlv.edu/jhdrp/vol12/iss4/27</link>
<guid isPermaLink="true">https://digitalscholarship.unlv.edu/jhdrp/vol12/iss4/27</guid>
<pubDate>Thu, 08 Aug 2019 13:15:41 PDT</pubDate>
<description>
	<![CDATA[
	<p>When an acute myocardial infarction (MI) occurs, the heart becomes ischemic. Medical treatments such as stents have improved the recovery process after a MI, but there is still a high risk for heart failure. Due to the resulting intramyocardial hemorrhage, residual hemoglobin with excess iron compromises cardiomyocyte (CM) survival. Previous studies suggest that the magnitude of CM cell death is directly proportional to the level of adverse left ventricular (LV) remodeling. Mechanistic target of rapamycin (mTOR) is a key downstream signaling pathway that is sufficient for CM cell survival against iron and responds to insulin, a cardioprotective growth factor. However, the effect of insulin in excess iron-induced cell death in CMs is not well characterized. Using H9c2 cardiomyoblasts, originally derived from embryonic rat ventricle cells, the effects of insulin in CM cell survival against excess iron were examined. The cells were pre-treated with varying dosages of insulin before applying iron (III) citrate. Cell viability was assessed by Live/Dead Assay, in which live cells stain with calcein AM (green) and nuclei of dead cells stain with ethidium homodimer-1 (red). In comparison to the amount of cell death caused by iron alone, insulin decreased dead cell count substantially. The greatest concentration of 1µM of insulin with iron resulted in a statistical significance of p<0.02 (n=3-4). The results indicate that insulin has the potential to mediate iron-induced CM death. Understanding the effect of insulin as a combatant of iron-induced cell death with an intramyocardial approach would lead to better therapeutic preventions of heart failure.</p>

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</description>

<author>Carina Tanaka et al.</author>


</item>




<item>
<title>Giant Clam (Tridacna gigas) Variations Based on Size and Density at Different Underwater Depths</title>
<link>https://digitalscholarship.unlv.edu/jhdrp/vol12/iss4/26</link>
<guid isPermaLink="true">https://digitalscholarship.unlv.edu/jhdrp/vol12/iss4/26</guid>
<pubDate>Thu, 08 Aug 2019 13:15:31 PDT</pubDate>
<description>
	<![CDATA[
	<p>The <em>Tridacnae</em> family, locally known as Faisua, are bivalve mollusks that thrive in tropical coral reef ecosystems. Faisua harbor photosynthetic zooxanthellae that provide the majority of their energy through photosynthesis. They are typically found in shallow water where they get the most sunlight. Faisua are considered a delicacy in American Samoa and populations are diminishing due to overfishing, especially in depths accessible to free divers (1-10m).</p>
<p>The National Park of American Samoa (NPSA) is interested in learning more about what drives giant clam distributions in NPSA waters, and one day hopes to outplant farmed Faisua to help increase population levels. Surveys were conducted to assess Faisua population density and analyze correlations with depth. With this data NPSA will be able to make more informed resource management decisions</p>
<p>Three 50m transects were conducted on the reef flat of Fagasa to assess Faisua density. size and location of each clam was recorded to the nearest cm. This data was then compared to Faisua surveys conducted by NPSA divers at 10, 20, and 30 m depths. It was hypothesized that there would be higher density and larger clam size in shallower depths, because there is more light available for photosynthesis.</p>

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</description>

<author>Olyvia Ta’ase et al.</author>


</item>




<item>
<title>Preliminary Assessment of Growing Oyster Mushroom, Pleurotus sajor-caju on Coconut Husk Substrate Supplemented with Different Amounts of Copra Cake</title>
<link>https://digitalscholarship.unlv.edu/jhdrp/vol12/iss4/25</link>
<guid isPermaLink="true">https://digitalscholarship.unlv.edu/jhdrp/vol12/iss4/25</guid>
<pubDate>Thu, 08 Aug 2019 13:15:21 PDT</pubDate>
<description>
	<![CDATA[
	<p>Mushroom cultivation is a newly introduced technology in the Marshall Islands to promote food security and community health due to its soluble fiber content and nutritive values. Mushroom is also known to have naturally occurring beta-glucans that could prevent high cholesterol and some other non-communicable disease (NCDs). Majuro Atoll has an ample amount of coconut husk and copra cake, a by-product from Tobolar Copra Processing Plant.  The study aimed to assess the possibility of using copra cake for mushroom cultivation.</p>
<p>The capability of oyster mushroom in utilizing coconut by-product was assessed in terms of mycelial growth, number of fruiting body, cap diameter and biological efficiency conversion (BEC). The mushroom growing media used for this study were composed of shredded coconut husk, dolomitic lime, brown sugar and varying amounts (0%, 5%, 10%, 15%, 20%, 25%) of copra cake with 45-60% moisture content. It was hypothesized that copra cake supplementation will increase production yield. Treatments were distributed in 10 replications and data were analyzed using the Duncan’s Multiple Test Range at 5% level of significance.</p>
<p>Mycelial growth occurred in all treatments in the following order: 10%> 0%, 5%, 15% >20% >25%. Thin mycelial growth occurred at 0%, and slowest growth was observed for 25%. Fruiting bodies did not take place for treatment without copra cake supplementation (0%). The overall growth performance was observed to be very favorable at 10% copra cake supplementation. This result suggests that coconut husk supplemented with the right amount of copra cake could be utilized effectively as locally available materials for mushroom cultivation.</p>

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</description>

<author>Unaisi Grace Kuilamu et al.</author>


</item>




<item>
<title>Exosomes: A Novel Zika Virus Vaccine Candidate</title>
<link>https://digitalscholarship.unlv.edu/jhdrp/vol12/iss4/24</link>
<guid isPermaLink="true">https://digitalscholarship.unlv.edu/jhdrp/vol12/iss4/24</guid>
<pubDate>Thu, 08 Aug 2019 13:15:08 PDT</pubDate>
<description>
	<![CDATA[
	<p>With the recent emergence of Zika virus (ZIKV) diseases, increasing global concern has driven the demand for a vaccine. One promising vaccine platform has presented itself in the form of exosomes: a subgroup of extracellular vesicles released by many human cell types that facilitate intercellular communication. The objective of this study is to engineer exosomes that incorporate ZIKV structural proteins into its phospholipid bilayer. Previous studies indicate that CD9 and CD63 proteins are highly enriched in exosomal membranes. From this, it was hypothesized that attaching ZIKV genes to CD9 or CD63 to produce a gene fusion may enable exosomes to act as antigen-presenting vesicles. These engineered exosomes may potentially stimulate T-cells to mount a strong immune response. The cDNA of the CD9, CD63, and the highly immunogenic ZIKV genes (envelope, precursor membrane, and NS1) were generated using RT-PCR. These products were used as a template for regular PCR, and cloned into pcDNA3.1/V5 vector. The chimeric gene fusion was assembled using the Gibson assembly kit, and transfected into human embryonic kidney epithelial (HEK293T) cells for expression. The exosomes were purified from the supernatant and subjected to immunoblotting and immunofluorescence assays to confirm the presence of ZIKV proteins.</p>
<p>The results of this study are pending at the time of this abstract submission. A future study will be conducted using an <em>in vitro </em>activation assay to determine if the engineered exosomes induce T-cell activation. The potential candidates will be used in an animal study for immunity against ZIKV infection.</p>

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</description>

<author>Carlos Furukawa et al.</author>


</item>




<item>
<title>Painting the Pacific: A Comparative Analysis of the Lightfastness of Watercolors Made from Indigenous Plants in the Pacific Region</title>
<link>https://digitalscholarship.unlv.edu/jhdrp/vol12/iss4/23</link>
<guid isPermaLink="true">https://digitalscholarship.unlv.edu/jhdrp/vol12/iss4/23</guid>
<pubDate>Thu, 08 Aug 2019 13:14:58 PDT</pubDate>
<description>
	<![CDATA[
	<p>Pacific<strong> </strong>Islanders have traditionally used plants and other natural resources to craft paints, dyes, and other colorants. However, much of society today has transitioned to more accessible, inexpensive colorants, which oftentimes contain toxic pigments and harmful solvents that can be detrimental to human health and the environment. This study will explore using phytochemicals of plants indigenous to the Pacific as safe, natural watercolor paints. The objective of this study is to test the lightfastness of watercolors made from roots of the langiti (<em>Ochrosia mariannensis</em>), roots of the ladda (<em>Morinda citrifolia</em>), cambium of the binalo (<em>Thespesia populnea</em>), and aerial roots of the kaffo’ (<em>Pandanus tectorius</em>).</p>
<p>In this experiment, water-soluble pigments were extracted from the plant materials through solvent extraction, rotary evaporation, and freeze-drying. The extracted compounds were then bonded to a colorless mordant, potassium aluminum sulfate, through chemical precipitation. The resulting lake pigment was then dried and made into traditional natural watercolors using a mixture of gum arabic and honey. To test for lightfastness, natural watercolors and name-brand ASTM compliant watercolors were subjected to an accelerated UVA exposure test for 14 days. Furthermore, sections of the color swatches were covered to analyze color intensity without exposure to UVA light. Color differences were measured in CIE L*a*b* coordinates in two-day intervals using a spectrocolorimeter. Data obtained from the triplicated samples were compared by analysis of variance and mean and standard deviation were calculated.</p>
<p>Research is currently being conducted and results will be examined and published at a later date.</p>

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</description>

<author>Michael Angelo P. Fernandez et al.</author>


</item>




<item>
<title>Investigating the Effect of Air Conditioning on Radon</title>
<link>https://digitalscholarship.unlv.edu/jhdrp/vol12/iss4/22</link>
<guid isPermaLink="true">https://digitalscholarship.unlv.edu/jhdrp/vol12/iss4/22</guid>
<pubDate>Thu, 08 Aug 2019 13:14:47 PDT</pubDate>
<description>
	<![CDATA[
	<p>Radon is an invisible and dangerous noble gas that seeps up from the ground. Breathing in too much radon may cause lung cancer. When a room is not ventilated properly and closed up for a long time, it can lead to dangerous amounts of radon filling up. Radon is everywhere around us, and any amount of radon may be dangerous. In order to lower the threats from radon, rooms must recirculate fresh air. The average radon level outside is 0.4 pCi/L (picocuries per liter). The recommended radon level in a room is under 4.0 pCi/L. As the use of air conditioning increases, the need to open windows is no longer a necessity. The aim of this study is to justify whether or not air conditioning lowers radon level. The study’s hypothesis is that air conditioning will lower the radon level.</p>
<p>This study will conduct two rounds of experiments at Marianas Baptist Academy. The radon in the rooms will be measured by a tool called the E-PERM. Electrets that collect ions and act as an ion sensor will be placed in three rooms for four days. Doors must remain shut during the four days. The first round will be managed in an environment where no air is entered into the room. The second round will be in an environment where air conditioning occurs. After each round, the electrets will be placed on a SPER reader to measure the voltage. The voltage will then be used to calculate the radon concentration in units of pCi/L.</p>
<p>The study is ongoing and the results will be discussed and presented at a further date.</p>

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</description>

<author>Tina Choi et al.</author>


</item>




<item>
<title>Are Purple Hermit Crabs (Coenobita brevimanus) Seed Dispersers or Predators?</title>
<link>https://digitalscholarship.unlv.edu/jhdrp/vol12/iss4/21</link>
<guid isPermaLink="true">https://digitalscholarship.unlv.edu/jhdrp/vol12/iss4/21</guid>
<pubDate>Thu, 08 Aug 2019 13:14:36 PDT</pubDate>
<description>
	<![CDATA[
	<p>Vertebrate frugivores play an important role in forests by dispersing seeds and helping improve germination through gut passage. Some frugivores may also be seed predators, where the seed is destroyed through gut passage. On the island of Saipan, the native frugivores are birds, bats, and crabs. This experiment focused on purple hermit crabs, <em>Coenobita brevimanus</em>, which are known to consume fruits, but it is unknown whether purple hermit crabs disperse or predate the seeds they consume. A maximum of ten purple hermit crabs, ranging in size from medium to large individuals, were captured from the forest and kept in captivity. In captivity, they were fed native fruits including Premna (<a href="https://en.wikipedia.org/w/index.php?title=Premna_mariannarum&action=edit&redlink=1" title="Premna mariannarum (page does not exist)"><em>Premna mariannarum</em></a> or <em>Premna paulobarbata</em>), Ficus (<em>Ficus prolixa</em>), Aglaia (<em>Lansium parasiticum</em>), and Guamia (<em>Guamia mariannae</em>) and non-native fruits including papaya (<em>Carica papaya</em>) collected in the wild. The cage was inspected to see if fruits were consumed but the seeds were not ingested, and the fecal matter was searched for damaged seeds (crushed or in pieces) or undamaged seeds (whole or intact). Analysis of predation or dispersal was done using logistic regression. It was hypothesized that purple hermit crabs are beneficial seed dispersers, passing most seeds unharmed for both native and non-native fruiting tree species. As beneficial frugivores, purple hermit crabs could play a significant role in dispersing seeds in the forests of Saipan.</p>

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</description>

<author>Alyssa Cepeda et al.</author>


</item>




<item>
<title>The Antimicrobial Effects of Allium Sativum on Escherichia Coli</title>
<link>https://digitalscholarship.unlv.edu/jhdrp/vol12/iss4/20</link>
<guid isPermaLink="true">https://digitalscholarship.unlv.edu/jhdrp/vol12/iss4/20</guid>
<pubDate>Thu, 08 Aug 2019 13:14:26 PDT</pubDate>
<description>
	<![CDATA[
	<p><em>Allium sativum</em> (Garlic) is an herb that is grown all over the world, and can be found in the homes of many people. This herb has many medicinal properties, but is mainly known for its antimicrobial properties. Fresh garlic contains enzymes called “alliinase” and “alliin”. When garlic is crushed or cut into the alliinase converts the alliin into allicin. Allicin is what gives the garlic its antimicrobial properties and odor.</p>
<p>The antimicrobial activity of the <em>Allium sativum</em> extract was tested on <em>Escherichia coli</em>, a gram-negative bacteria, using the agar-well diffusion method. A test tube containing only <em>Escherichia coli </em>was used as the control group. Another test tube containing <em>Escherichia coli</em> and the <em>Allium sativum </em>extract was used as the test group. It was hypothesized that the <em>Allium sativum </em>extract would prevent the growth of the <em>Escherichia coli</em>.</p>
<p>With the rising costs of today’s society finding cheap and effective alternative treatments, will be helpful by providing medical help for those who can’t afford regular healthcare treatments.</p>

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</description>

<author>David Borja et al.</author>


</item>




<item>
<title>Promoting Local Talents to Fight Local Health Issues STEP-UP in the Pacific</title>
<link>https://digitalscholarship.unlv.edu/jhdrp/vol12/iss4/19</link>
<guid isPermaLink="true">https://digitalscholarship.unlv.edu/jhdrp/vol12/iss4/19</guid>
<pubDate>Thu, 08 Aug 2019 13:14:15 PDT</pubDate>
<description>
	<![CDATA[
	<p>This manuscript introduces the abstracts for the University of Hawai'i at Manoa Coordinating Center.</p>

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</description>

<author>Aneesa Golshan, MPH et al.</author>


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<item>
<title>The Interaction between Nef Protein and ABCA1 Mutants in Tangier Disease</title>
<link>https://digitalscholarship.unlv.edu/jhdrp/vol12/iss4/18</link>
<guid isPermaLink="true">https://digitalscholarship.unlv.edu/jhdrp/vol12/iss4/18</guid>
<pubDate>Thu, 08 Aug 2019 13:14:05 PDT</pubDate>
<description>
	<![CDATA[
	<p>The genetic disorder Tangier Disease is characterized by mutations at a chromosomal locus, 9q31, which affect proper function of the cholesterol transporter ATP-Binding Cassette A1 (ABCA1). Individuals with mutant ABCA1 have very low levels of high-density lipoprotein and are at high risk for development of neuropathy and atherosclerosis. Two of the ABCA1 mutations, Q597R and R587W, lead to retention of ABCA1 in the endoplasmic reticulum (ER) in a pattern that is reminiscent of a previously reported ABCA1 inactivation by HIV-1 protein Nef. The mechanism of that inactivation involves Nef binding to an ER chaperone calnexin, which disrupts the interaction between calnexin and ABCA1 preventing proper maturation of ABCA1. As a result, ABCA1 is retained in the ER and not transported to the plasma membrane where its main activity takes place. Thus, we speculated that the underlying mechanism of retention of ABCA1 in the ER of patients with Q597R and R587W mutations is caused by a weakened interaction between mutated ABCA1 and calnexin. However, our preliminary data suggests that it is actually an abnormally strong interaction between these two molecules that leads to the retention of ABCA1 in the ER. The main aim of my research is to attempt to use HIV-1 Nef to decrease the strength of interaction between these mutants and calnexin, which may enable the transport of ABCA1 molecules to cellular membrane, thus restoring the cholesterol efflux from the affected cells. If successful, this approach could lead to a potential therapeutic treatment for Tangier disease using Nef-mimicking peptides.</p>

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</description>

<author>Jaden White et al.</author>


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<item>
<title>The Effect of Saturated Fatty Acid on the Expression of Apoptotic and Fibrotic Proteins in Renal Tubular Epithelial Cells</title>
<link>https://digitalscholarship.unlv.edu/jhdrp/vol12/iss4/17</link>
<guid isPermaLink="true">https://digitalscholarship.unlv.edu/jhdrp/vol12/iss4/17</guid>
<pubDate>Thu, 08 Aug 2019 13:13:55 PDT</pubDate>
<description>
	<![CDATA[
	<p>Diabetic Nephropathy, triggered by diabetes, is a kidney disease with severe health consequences and is a high economic burden. Literature suggests that the deterioration of kidney function correlates best with the degree of renal tubulointerstitial fibrosis. Proximal tubule epithelial cells can orchestrate renal fibrosis, as a result of fatty acid accumulation, also known as lipotoxicity. The objective of the study is to evaluate the effect of saturated fatty acid on renal tubular epithelial cells. Human kidney proximal tubule cells (HK-2) were cultured in 5% FBS/DMEM/streptomycin/Hepes and incubated at 37°C until cells are 90% confluent. Palmitic acid (PA) was prepared in serum-free medium with 1% Bovine serum albumin (BSA) before cells were treated for 24 hours and 48 hours. After treatment, cell lysates were extracted, quantified by DC assay and analyzed by Western blot. As expected, BSA increased Bax and decreased BCL-2 proteins in HK-2 cells. Interestingly, a slight increase in BCL-2 and a decrease in Bax and Cyclin D1 proteins were observed in PA-treated cells after 24 hours. These changes were even greater when the cells were exposed to PA for 48 hours. Additionally, we observed an increase in fibronectin after chronic PA treatment.  These results suggest the effect of PA on apoptosis related proteins is independent of BSA in renal tubular epithelial cells.</p>

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</description>

<author>Joya Sims et al.</author>


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<item>
<title>Examining Race Differences in Blood Pressure Control among People with Chronic Kidney Disease</title>
<link>https://digitalscholarship.unlv.edu/jhdrp/vol12/iss4/16</link>
<guid isPermaLink="true">https://digitalscholarship.unlv.edu/jhdrp/vol12/iss4/16</guid>
<pubDate>Thu, 08 Aug 2019 13:13:44 PDT</pubDate>
<description>
	<![CDATA[
	<p>Of Chronic Kidney Disease (CKD) patients, 20% of them also have hypertension (HTN). African Americans (AA) are known to be more at risk of CKD development and poor HTN control compared to Whites, largely due to their higher prevalence of diabetes and HTN. While those health conditions are a known risk factor to CKD, it is less clear if there is a race difference in HTN control among CKD patients.</p>
<p>Using a combined 1999-2014 data set from The National Health and Nutrition Examination Survey (NHANES), we sought to determine if there is an association between race and HTN control among CKD patients.  A smaller portion of AA CKD patients (58.2% vs 71.6%; p<0.001) had controlled hypertension than White CKD patients.  After adjusting for age, AA had a lower odds of having their hypertension controlled (odds ratio (OR) = 0.58; 95% confidence interval (CI): 0.37-0.92) relative to whites. When adjusting for social factors and medical conditions, we observed that hypertensive African Americans with CKD had similar odds of having their hypertension controlled (OR=0.55; 95% CI= 0.25-1.23) relative their White peers.</p>
<p>Social factors and medical conditions account for the race difference in hypertension control among CKD patients. Strategies to control hypertension among AA patients with CKD must include not only efforts for proper health care to treat and control medical conditions, such as diabetes and stroke, but to address social factors. The results highlight the importance of creating interventions specifically focused on chronic disease prevention and management for African American adults to attempt to delay the onset or impede the progression of CKD.</p>

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</description>

<author>Jayme Savoy et al.</author>


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<item>
<title>Spheroid Toxicity Assay Utilizing Magnetic 3D Bioprinting</title>
<link>https://digitalscholarship.unlv.edu/jhdrp/vol12/iss4/15</link>
<guid isPermaLink="true">https://digitalscholarship.unlv.edu/jhdrp/vol12/iss4/15</guid>
<pubDate>Thu, 08 Aug 2019 13:13:35 PDT</pubDate>
<description>
	<![CDATA[
	<p>Analysis of cell cultures utilizing two-dimensional (2D) spheroid assays has been the standard to analyze toxicity screenings for decades, however the high cost and inefficiencies in producing in-vitro assays using this technique creates the need for more productive and cost-efficient methods. The newly introduced Magnetic 3D Bioprinting system addresses the shortcomings of the 2D systems. This method relies on magnetizing cells and rapidly printing them in a more organized formation, mimicking in-vitro environments and interaction<strong>. </strong> This study assesses the effectiveness of Magnetic 3D Bioprinting system in analyzing spheroid toxicity assays when compared to the 2D methods, we hypothesize that the cell cultures produced utilizing this system will result in superior detail, utility, and realistic representation of the in-vitro environment.</p>
<p>Cardiomyocytes and hepatocytes were mixed with NanoShuttle (1 u/ 10000 cells) for 2 hours to become magnetized.  The cells were separated, counted, and redistributed to a cell repellent 384-well plate. The cells were left to interact to form a mature spheroid with ECM. Results showed that the cultures were successfully imaged and yielded viable spheroid samples with greater efficiency and cell interactions. After 15 minutes of printing, viability, spheroid size and cell count increased in a time dependent manner. Day 1: the surface area increased from 3.2 to 3.45 x10<sup>5 </sup>pixels in 12s; by day 7 the number increased to 8.18 x 10<sup>5</sup> pixels, while showing steadying beating patterns</p>
<p>The Magnetic 3D Bioprinting system yielded cell cultures that revealed higher levels of activity, size, and interaction in the 3D environment.</p>

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</description>

<author>Anore Pedalino et al.</author>


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<item>
<title>Assessing Indications of Riskiness in Adolescents</title>
<link>https://digitalscholarship.unlv.edu/jhdrp/vol12/iss4/14</link>
<guid isPermaLink="true">https://digitalscholarship.unlv.edu/jhdrp/vol12/iss4/14</guid>
<pubDate>Thu, 08 Aug 2019 13:13:25 PDT</pubDate>
<description>
	<![CDATA[
	<p>Adolescents are often likely to engage in perilous behaviors during their transitional years from youth to adulthood. Nearly 75% of the primary causes of death in the adolescent population are of preventable causes. In order to address the harmful issues facing this young population today, researchers at the University of Michigan developed the Rapid Assessment for Adolescent Preventive Services (RAAPS), a 21-question risk screening examination that identifies the behaviors contributing the most to adolescent morbidity, mortality, and social problems.</p>
<p>Over the course of this study, beginning in 2015, researchers utilized the RAAPS to gather data from University of Michigan Health System (UMHS) health clinics around Southeast Michigan. Clinic patients between the ages of 11 and 21 were administered the questionnaire as part of their primary care visit. The simple yes/no structure of each question allowed for a straightforward entry of data that could be analyzed to compare different factors affecting adolescents. Data from the assessment was entered into the Statistical Package for the Social Sciences (SPSS) statistical software for an in-depth analysis by researchers through the use of the Chi-squared test for categorical variables.</p>
<p>Results regarding the data obtained from the assessment are still pending at the time of abstract submission; however, it is predicted that significant indications of harmful behavior will be linked to factors such as sexual orientation and/or median household income-level. These findings may suggest a new direction in which physicians can address issues for adolescents who identify with certain characteristics.</p>

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</description>

<author>Niral Patel et al.</author>


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<item>
<title>Missed Treatments of Hemodialysis Patients after Hurricane Maria in Puerto Rico</title>
<link>https://digitalscholarship.unlv.edu/jhdrp/vol12/iss4/13</link>
<guid isPermaLink="true">https://digitalscholarship.unlv.edu/jhdrp/vol12/iss4/13</guid>
<pubDate>Thu, 08 Aug 2019 13:13:14 PDT</pubDate>
<description>
	<![CDATA[
	<p>The consequences of a natural event such as a hurricane can especially have a negative impact on vulnerable patients such as hemodialysis patients. In former incidences such as Hurricane Katrina, factors such as living relocations disrupted hemodialysis patients’ ability to adhere to their thrice-weekly treatments (Anderson et al, 2009). In this study, 44% of the 386 hemodialysis patients who experienced Hurricane Katrina reported missing one or more dialysis sessions. Thus, the hurricane had significant negative influence on patients’ attendance at the dialysis clinic. In the aftermath of Hurricane Maria, Puerto Rico suffered extensive road blockages, electricity shortages<em>, </em>and lacking natural resources. Recovery procedures such as clearing of roads were not completed until several months afterward. By October, there was still a significant portion of people without sufficient resources. The primary objectives of this study are to assess the percentage of hemodialysis patients who missed dialysis sessions in the aftermath of Hurricane Maria and the social factors influencing their missed sessions. From a total of 16 facilities, three dialysis clinics in cities most highly impacted by the hurricane will be selected to participate. Data will be collected through patient interviews, surveys, and charts, to examine potential demographic characteristics and social factors that may have affected the patients’ attendance to these dialysis facilities. If there is a significant correlation between the social factors and missed treatments, then management strategies can be suggested to help hemodialysis patients adjust to post-disaster conditions and help develop planning strategies in case of future natural disasters.</p>

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</description>

<author>Mercedes Harford et al.</author>


</item>




<item>
<title>Investigating the Aggregation of α-synuclein Variants and Their Interactions with a Molecular Tweezer</title>
<link>https://digitalscholarship.unlv.edu/jhdrp/vol12/iss4/12</link>
<guid isPermaLink="true">https://digitalscholarship.unlv.edu/jhdrp/vol12/iss4/12</guid>
<pubDate>Thu, 08 Aug 2019 13:13:04 PDT</pubDate>
<description>
	<![CDATA[
	<p>The protein α-synuclein (α-syn) self-assembles under abnormal conditions into toxic aggregates thought to be a central cause of pathology in neurodegenerative diseases such as Parkinson’s Disease (PD). A promising approach for treating PD is to inhibit the abnormal self-assembly of α-syn in the brain by using small molecules called “molecular tweezers” that the Bitan laboratory has been developing. Molecular tweezers bind to lysine (Lys) residues and prevent both hydrophobic and electrostatic interactions that are key to abnormal self-assembly. The molecular tweezer CLR01 inhibits the self-assembly of α-syn <em>in vitro</em> and <em>in vivo</em> by preferentially binding to Lys at positions 10 and/or 12 and at the region spanning residues 43-58. This leads me to investigate how effective CLR01 is in preventing aggregation when the amino acid at the binding site is substituted, by using Lys to Ala variants of α-syn at positions 43 and 58. I hypothesize that CLR01 will prevent more effectively aggregation in the wild type (WT) than it will in the two variants because essential binding sites will be missing in these variants. As my main experimental method, I use the Thioflavin-T fluorescence assay to measure the amount and kinetics of -pleated sheet formation, which is analogous to α-syn aggregation regardless of the absence or concentration of CLR01. This study will provide insight into the preferred binding site of CLR01 and the behavior of α-syn containing amino acid substitutions and thus will increase our understanding of this important mechanism underlying PD and potentially direct future drug development efforts.</p>

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</description>

<author>Leslie Gonzalez et al.</author>


</item>




<item>
<title>The Effects of Trunk Fat on Endothelial Function in African American Women</title>
<link>https://digitalscholarship.unlv.edu/jhdrp/vol12/iss4/11</link>
<guid isPermaLink="true">https://digitalscholarship.unlv.edu/jhdrp/vol12/iss4/11</guid>
<pubDate>Thu, 08 Aug 2019 13:12:54 PDT</pubDate>
<description>
	<![CDATA[
	<p>African Americans (AA), both adults and adolescents, have increased mortality from most of the diseases associated with metabolic syndrome and Endothelial Dysfunction including: myocardial infraction, stroke, and hypertension. Recent research has shown that there is a close link between endothelial function and insulin sensitivity in both normotensive and hypertensive subjects. This is important because African Americans are more frequently insulin resistant and display less mediated brachial artery vasodilation compared to Caucasians.</p>
<p>The study took healthy, AA women ages 18-45 and grouped them into two main categories based on their Body Mass Index (BMI): lean/ insulin dependent (BMI<25) and obese/insulin resistant (BMI>30). There were two main phases of the study, requiring four sets of measurements from each patient. Phase I was a cross-sectional comparison of endothelial function, adipokines, insulin resistance, inflammatory state, oxidative stress, and circulating endothelial progenitor cells in the two groups of AA women. Phase II was an 8-week randomized controlled trial of the effects of the DASH-type diet on endothelial function, oxidative stress, and endothelial progenitor cells. Measurements of trunk fat were done using the Hologic Discovery QDR densitometer. Coefficient of variation for repeat measurement is 1.0% and correlation of percent body fat between fan beams and hydro densitometry is 0.91. High-frequency ultrasound was used to obtain B-mode images of the left brachial artery in the longitudinal section 2cm above the antecubital crease to measure endothelial function.</p>
<p>Higher trunk fat percentages create greater amounts of oxidative stress and inflammation on the cells, causing a decrease in endothelial function and repair.</p>

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</description>

<author>Kayla A. Braggs et al.</author>


</item>




<item>
<title>Training Underrepresented High School Students as a Strategy to Increase Diversity in the Biomedical Research and Health Professions Workforce</title>
<link>https://digitalscholarship.unlv.edu/jhdrp/vol12/iss4/10</link>
<guid isPermaLink="true">https://digitalscholarship.unlv.edu/jhdrp/vol12/iss4/10</guid>
<pubDate>Thu, 08 Aug 2019 13:12:43 PDT</pubDate>
<description>
	<![CDATA[
	<p>This manuscript introduces the abstracts from the University of California, Los Angeles Coordinating Center.</p>

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</description>

<author>Dolores E. Caffey-Fleming, MS, MPH et al.</author>


</item>




<item>
<title>Effects of Par1a Deletion on Tubulointerstitial Fibrosis in Folic Acid Mouse Models of Renal Injury</title>
<link>https://digitalscholarship.unlv.edu/jhdrp/vol12/iss4/9</link>
<guid isPermaLink="true">https://digitalscholarship.unlv.edu/jhdrp/vol12/iss4/9</guid>
<pubDate>Thu, 08 Aug 2019 13:12:33 PDT</pubDate>
<description>
	<![CDATA[
	<p>Chronic Kidney Disease (CKD) affects 1 out of 7 adults in the United States and causes significant morbidity and mortality. Development of tubulointerstitial fibrosis, and the accompanying loss of functional tubular cells, leads to CKD progression. The Notch signaling pathway is required for renal development, however, sustained Notch activation in adult mice induces tubulointerstitial fibrosis. Dual deletion of  <em>Par1a </em>and <em>Par1b</em>, serine threonine kinases, in developing mouse kidneys impaired Notch activation and resulted in the formation of abnormal glomeruli and proximal tubules. Deletion of either <em>Par1a </em>or <em>1b </em>does not affect kidney development.We hypothesize that <em>Par1a </em>or <em>1b </em>deletion in mice would protect against folic acid (FA) induced tubulointerstitial fibrosis.</p>
<p>FA models of renal fibrosis were induced in <em>Par1a </em>WT and <em>Par1a </em>KO mice with intraperitoneal injections of 250 mg/kg FA dissolved in 300 nM NaHCO3. Mice were examined 7 days after injection—the time of earliest fibrosis and peak Notch expression. Sirius red collagen staining was used to quantify the severity of fibrosis. Immunohistochemical staining for Notch signaling components and Par1a were performed. It was observed that <em>Par1a </em>expression was increased after FA injection. Par1a colocalized in tubules with increased Jag1 expression. Sirius red staining demonstrated less fibrosis in Par1a KO vs. WT mice.</p>
<p>Together, our results suggest Par1a deletion may be protective against renal fibrosis. Par1-Notch interactions may be mediated by effects on Jag1. Par1-Notch signaling could be a novel target for therapeutic intervention and potentially attenuate CKD progression.</p>

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</description>

<author>Vellia Zhou et al.</author>


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<item>
<title>Dental Emergencies in the Current Health Care System</title>
<link>https://digitalscholarship.unlv.edu/jhdrp/vol12/iss4/8</link>
<guid isPermaLink="true">https://digitalscholarship.unlv.edu/jhdrp/vol12/iss4/8</guid>
<pubDate>Thu, 08 Aug 2019 13:12:23 PDT</pubDate>
<description>
	<![CDATA[
	<p>A huge problem in the current health system is that Oral care is not currently integrated into the overall health system, given the lack of dental coverage for underserved adults, and the insufficient amount of dentists available for individuals with dental coverage.</p>
<p>The lack of education regarding the importance of oral health and shortage in the number of dentists and dental coverage leads to an influx of patients with mild to severe dental problems at the emergency departments (EDs) across the country. Many studies conclude that by integrating oral health into the overall health system, there would an increase in availability for oral care that would be beneficial to patients, and it would be easier and more affordable for the ED to deal with an influx of patients with oral problems. This study examines reasons why patients with dental problems visit the ED at any of MedStar’s hospitals. The study will allow us to improve our current understanding of dental emergencies treated at EDs.</p>
<p>The study uses MedStar’s database to identify individuals who visited the ED for oral issues or emergencies. We will examine correlations between the dental emergency type and certain demographics as well as insurance type.</p>

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</description>

<author>David Singleton et al.</author>


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<item>
<title>Epigenetic Factors Impacting Type 2 Diabetes in American Indians</title>
<link>https://digitalscholarship.unlv.edu/jhdrp/vol12/iss4/7</link>
<guid isPermaLink="true">https://digitalscholarship.unlv.edu/jhdrp/vol12/iss4/7</guid>
<pubDate>Thu, 08 Aug 2019 13:12:13 PDT</pubDate>
<description>
	<![CDATA[
	<p>American Indians have been found to be at higher risk of type 2 diabetes (T2D) than any other ethnic or racial groups in the United States, with an estimated prevalence rate of 33%. Given that T2D prevalence rates amongst the American Indian population are so high, studying the complex factors that contribute to T2D is crucial. Of particular importance to this study is identifying heritable effects involved in development of T2D. Epigenetic effects, heritable changes to DNA that affect gene expression such as DNA methylation (DNAm), have been shown to be associated with T2D phenotypes.</p>
<p>Studies in other subpopulations have previously identified differential DNAm at the <em>ABCG1</em> gene as being associated with T2D. <em>ABCG1 </em>plays a significant role in promoting cholesterol efflux, and it has been associated with T2D and related traits. As such, we sought to determine whether those results generalized to American Indians by assaying DNAm at <em>ABCG1</em> within a sample population of 285 American Indian participants in the Strong Heart Study (SHS). In verifying whether there is a significant association between DNAm levels and T2D, we hypothesize that individuals diagnosed with T2D will have higher rates of DNAm at loci in <em>ABCG1</em> than individuals who do not have T2D. Ultimately, we hope the results of this experiment can provide more insight on the role that differential DNAm has to play in the risk and development of T2D.</p>

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</description>

<author>Alejandra Salazar Gonzalez et al.</author>


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<item>
<title>What Are Normal Cortisol Values for Young Children?</title>
<link>https://digitalscholarship.unlv.edu/jhdrp/vol12/iss4/6</link>
<guid isPermaLink="true">https://digitalscholarship.unlv.edu/jhdrp/vol12/iss4/6</guid>
<pubDate>Thu, 08 Aug 2019 13:12:03 PDT</pubDate>
<description>
	<![CDATA[
	<p>Normative ranges for cortisol levels in children remain controversial, because of diurnal variations, effects of age, sex, stressful experiences before sampling (blood, saliva), intercurrent illnesses/immunizations, sample preparation and analytical methods. Measuring hair cortisol concentrations (HCC) is unaffected by diurnal variations or many of these factors, and presents a summative measure of chronic stress. Depending on hair growth rates, approximately 1 cm of hair represents cortisol release over the past month. HCC does not fluctuate frequently and therefore represents cumulative stress over time. It is vitally important to establish normative cortisol levels in children, so that both maladaptive and toxic stress levels can be measured.</p>
<p>Pilot data from children in the CANDLE Study (Conditions Affecting Neurocognitive Development & Learning in Early childhood) were analyzed to identify the 25<sup>th</sup>, 50<sup>th</sup> and 75<sup>th</sup> percentiles for HCC in 1-4 year-old children. Significantly higher HCC were noted in black vs. white children at 1, 2, 3, and 4-years (P<0.001, for all ages).  When measuring HCC we must also study the biochemical composition of an individual’s hair, primarily its lipid content. This lipid content is significantly different depending on one’s racial background and may account for some of the observed racial differences in HCC (Robbins, 2012). Establishing age-, sex-, and race-specific normative levels for HCC are essential for investigating the cumulative effects of chronic stress or “allostatic load” across the lifespan.  If the normative ranges for HCC can be established, both the causes and effects of maladaptive and toxic stress can be subsequently identified, prevented and/or treated.</p>

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</description>

<author>Aidan Rubio et al.</author>


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<item>
<title>Mapping the Arrangement of Neural Ensembles Involved in Distinct Stages of Spatial Memory Processing in Hippocampal Regions</title>
<link>https://digitalscholarship.unlv.edu/jhdrp/vol12/iss4/5</link>
<guid isPermaLink="true">https://digitalscholarship.unlv.edu/jhdrp/vol12/iss4/5</guid>
<pubDate>Thu, 08 Aug 2019 13:11:53 PDT</pubDate>
<description>
	<![CDATA[
	<p>Memory traces are believed to be supported by neural ensembles sculpted by learning activity. Reactivation of these ensembles would elicit memory recall. Although the recruitment of neural ensembles appears to be essential to memory formation and storage, not much is known of the exact arrangement of such ensembles during memory processes.</p>
<p>The goal of this project is to identify ensembles of neurons associated with distinct stages of the processing of a spatial memory in the hippocampus of mice. We hypothesize that as memory progresses, from early to late (more consolidated) stages, the majority of neurons constituting the ensemble will migrate from the entry to the termination areas of the hippocampal network. Using Immediate Early Gene fluorescent tagging methodology, we examined how the process of acquisition, consolidation, and extinction of memory shape neural ensembles in the hippocampus of the mouse. We trained transgenic mice expressing the Arc-Cre/eYFP double transgene in an active place avoidance task and activated fluorescent (eYFP) tagging at the specific memory stages, by injecting Tamoxifen.</p>
<p>Our hypothesis predicts that each stage of memory would require different amounts of neurons across the hippocampus network. We anticipate that memory acquisition (learning) recruitment of neurons will be higher at the dentate gyrus (DG), the entry point to the hippocampus, and lower at the CA1 area, its exit point. Furthermore, as memory gets consolidated, we expect to see a decrease in the DG and an increase in CA1. With this work, we hope to provide insight into how memory traces are represented in the brain.</p>

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</description>

<author>Mikayla Hutchinson et al.</author>


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<item>
<title>Development of the Family Poverty Index (FPI): A Novel Index to Measure Socioeconomic Status</title>
<link>https://digitalscholarship.unlv.edu/jhdrp/vol12/iss4/4</link>
<guid isPermaLink="true">https://digitalscholarship.unlv.edu/jhdrp/vol12/iss4/4</guid>
<pubDate>Thu, 08 Aug 2019 13:11:42 PDT</pubDate>
<description>
	<![CDATA[
	<p>The CANDLE Study aims to uncover factors experienced during pregnancy and early life that affect cognition, behavior, and health of children. External stressors and socioeconomic status (SES) influence the fetus through “prenatal programming”. However, comprehensive measures of SES do not exist, except those based on income and education.</p>
<p>We selected 53 variables from the CANDLE study including annual household income, headcount, marital status, health insurance, parental occupation and education. Singular value decomposition imputation (SVDI), a principal components analysis approach unaffected by the 24.4% missing data in our variables, was applied to all 53 variables (Troyanskaya, 2001).</p>
<p>All variables were distilled into 3 principal components explaining 93% of the variability. These components were combined to develop the Family Poverty Index (FPI, range 1-10). All subjects were separated into deciles based on FPI scores. Individuals with FPI=1 were the “poorest” with 79% individuals having annual incomes <$15,000. Those with FPI=9 or 10 were “rich”, since most individuals (98.7%, 73.3%) had annual incomes >$55,000. With FPI=1-3, 95% had Medicaid insurance and 4.8% had employer/private insurance, whereas with FPI=8-10, 86% had employer/private insurance and 11.8% had Medicaid. Other variables showed similar distributions across FPI categories.</p>
<p>FPI appears to be a robust measure of SES in the CANDLE Study population. Further research should test the validity of the FPI in other datasets.</p>

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</description>

<author>Ozi Amuzie et al.</author>


</item>




<item>
<title>Internal Regulation of Triglyceride Levels in the Liver Through Autophagy-induced Protein Manipulation</title>
<link>https://digitalscholarship.unlv.edu/jhdrp/vol12/iss4/3</link>
<guid isPermaLink="true">https://digitalscholarship.unlv.edu/jhdrp/vol12/iss4/3</guid>
<pubDate>Thu, 08 Aug 2019 13:11:32 PDT</pubDate>
<description>
	<![CDATA[
	<p>Overnutrition in modern society has created many pathological conditions that have personal and social consequences. Fatty liver is one of such conditions that used to be considered transient and benign but is now known to be the beginning stage of more severe liver diseases. Excess lipids due to overnutrition are usually manifested in the liver by the appearance of subcellular structures known as lipid droplets (LD). LD are composed of a monolayer of phospholipids wrapping around a neutral lipid core mostly comprised of triglyceride (TG). TG is classically known to be catabolized by lipolytic-enzymes, such as Triglyceride lipase (ATGL), Hormone-sensitive lipase (HSL). This study describes a new mechanism of TG catabolism not by lipases but through cellular scavenger system – autophagy.</p>
<p>Through experimentation, data suggests LD is not only composed of lipids but also proteins that potentially regulate LD formation and catabolism. Plin2, one of the lipid droplet proteins, suggests a pivotal role in the regulation of lipid levels in the liver via autophagy. Previous studies showed that in the absence of Plin2 the hepatic TG level reduced to only 50% of the control. Results from western blotting and imaging analysis has identified Plin2-deficiency in correlation to increased autophagy activity. The absence of Plin2 on the LD concomitantly caused the elevation of other proteins such as ABHD5, and Plin5 on lipid droplets. By analyzing the TG levels and autophagy flux in different knockout combinations of these LD proteins there can be a more versed understanding of how autophagy regulates TG catabolism in the liver.</p>

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</description>

<author>Luis Alvarez et al.</author>


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<item>
<title>Need for Advancing Underrepresented Minorities in the Health Sciences and Medicine</title>
<link>https://digitalscholarship.unlv.edu/jhdrp/vol12/iss4/2</link>
<guid isPermaLink="true">https://digitalscholarship.unlv.edu/jhdrp/vol12/iss4/2</guid>
<pubDate>Thu, 08 Aug 2019 13:11:22 PDT</pubDate>
<description>
	<![CDATA[
	<p>This manuscript introduces the abstracts from the Stanford Coordinating Center.</p>

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</description>

<author>Bonnie Halpern-Felsher, PhD et al.</author>


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<item>
<title>NIDDK’s Short-Term Research Experience for Underrepresented Persons (STEP-UP) Program</title>
<link>https://digitalscholarship.unlv.edu/jhdrp/vol12/iss4/1</link>
<guid isPermaLink="true">https://digitalscholarship.unlv.edu/jhdrp/vol12/iss4/1</guid>
<pubDate>Thu, 08 Aug 2019 13:11:08 PDT</pubDate>
<description>
	<![CDATA[
	<p>This abstract provides an overview to this issue.</p>

	]]>
</description>

<author>Rob Rivers, PhD et al.</author>


</item>





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