From Awareness to Action: Understanding and Addressing Health Disparities

In the United States, marginalized groups consistently face barriers to healthcare services necessary for maintaining quality of life and achieving positive health outcomes. Health disparities can be defined as “preventable differences in the burden of disease, injury, violence, or opportunities to achieve optimal health that are experienced by populations that have been disadvantaged by their social or economic status, geographic location, or environment” (CDC, 2008). With input from insightful interviews, this article seeks to investigate specific challenges faced by marginalized groups in the healthcare setting and provide potential solutions to reduce health disparities

Unique Perspectives on the Spread of COVID-19

News articles and research studies highlighting the changing knowledge about COVID-19 have cast a mundane, yet ever constant glare on our lives. The broad scope of the virus has brought together professionals from diverse research backgrounds, thus providing us unique perspectives into the nature of this pandemic. In this article, we will be highlighting interesting COVID-19 research efforts in three unique fields: geoscience, mechanical engineering, and political science

You’ve Graduated. So Now What?

After graduating, many new college graduates often face the question: where do I go from here? While some people opt to obtain a postgraduate degree, other options exist for those who are unsure of what career they want to pursue or those who simply want to take a gap year. In this article, we will explore three unique opportunities for new graduates to consider: The Fulbright Program, Boren Scholarship, and Service Programs such as PeaceCorp and AmeriCorp

Your Personal Guide to Getting into Research

The stereotype of a researcher conjures up an image of a person in a white lab coat, juggling various test tubes and chemicals. However, this picture does not capture the essence of all research. Contrary to popular belief, you do not have to be a STEM major to do research! Research is for everyone, and there are many options to participate across all disciplines. As an R-1 classified research institute, the University of Louisville (UofL) is involved with groundbreaking research across many disciplines including education, political science, and business. Below are some compelling reasons to pursue research as an undergraduate student, and as you read further, you will hear first-hand advice from Dr. Running and Dr. Fuselier, two research professors in the Biology department at UofL

Modulation of ADAR mRNA expression in patients with congenital heart defects.

Adenosine (A) to inosine (I) RNA editing is a hydrolytic deamination reaction catalyzed by the adenosine deaminase (ADAR) enzyme acting on double-stranded RNA. This posttranscriptional process diversifies a plethora of transcripts, including coding and noncoding RNAs. Interestingly, few studies have been carried out to determine the role of RNA editing in vascular disease. The aim of this study was to determine the potential role of ADARs in congenital heart disease. Strong downregulation of ADAR2 and increase in ADAR1 expression was observed in blood samples from congenital heart disease (CHD) patients. The decrease in expression of ADAR2 was in line with its downregulation in ventricular tissues of dilated cardiomyopathy patients. To further decipher the plausible regulatory pathway of ADAR2 with respect to heart physiology, miRNA profiling of ADAR2 was performed on tissues from ADAR2-/- mouse hearts. Downregulation of miRNAs (miR-29b, miR-405, and miR-19) associated with cardiomyopathy and cardiac fibrosis was observed. Moreover, the upregulation of miR-29b targets COL1A2 and IGF1, indicated that ADAR2 might be involved in cardiac myopathy. The ADAR2 target vascular development associated protein-coding gene filamin B (FLNB) was selected. The editing levels of FLNB were dramatically reduced in ADAR2-/- mice; however, no observable changes in FLNB expression were noted in ADAR2-/- mice compared to wild-type mice. This study proposes that sufficient ADAR2 enzyme activity might play a vital role in preventing cardiovascular defects

Polygenic score modifies risk for Alzheimer\u27s disease in ε4 homozygotes at phenotypic extremes

Introduction: Diversity in cognition among apolipoprotein E () ε4 homozygotes can range from early-onset Alzheimer\u27s disease (AD) to a lifetime with no symptoms. Methods: We evaluated a phenotypic extreme polygenic risk score (PRS) for AD between cognitively healthy ε4 homozygotes aged ≥75 years (n = 213) and early-onset ε4 homozygote AD cases aged ≤65 years (n = 223) as an explanation for this diversity. Results: The PRS for AD was significantly higher in ε4 homozygote AD cases compared to older cognitively healthy ε4/ε4 controls (odds ratio [OR] 8.39; confidence interval [CI] 2.0-35.2; = .003). The difference in the same PRS between ε3/ε3 extremes was not as significant (OR 3.13; CI 0.98-9.92; = .053) despite similar numbers and power. There was no statistical difference in an educational attainment PRS between these age extreme case-controls. Discussion: A PRS for AD contributes to modified cognitive expression of the ε4/ε4 genotype at phenotypic extremes of risk

Increased expression levels of Syntaxin 1A and Synaptobrevin 2/Vesicle-Associated Membrane Protein-2 are associated with the progression of bladder cancer

Abstract Gene expression is tightly regulated in time and space through a multitude of factors consisting of signaling molecules. Soluble N-ethylmaleimide-sensitive-factor attachment protein receptors (SNARE) are membrane proteins responsible for the intercellular trafficking of signals through endocytosis and exocytosis of vesicles. Altered expression of SNARE proteins in cellular communication is the major hallmark of cancer phenotypes as indicated in recent studies. SNAREs play an important role in maintaining cell growth and epithelial membrane permeability of the bladder and are not only involved in cancer progression but also metastatic cell invasion through SNARE-mediated trafficking. Synaptobrevin2/Vesicle associated membrane protein-2 (v-SNARE) and Syntaxin (t-SNARE) form a vesicular docking complex during endocytosis. Some earlier studies have shown a critical role of SNARE in colon, lungs, and breast cancer progression and metastasis. In this study, we analyzed the relative expression of the STX1A and VAMP2 (SYB2) for their possible association in the progression and metastasis of bladder cancer. The profiling of the genes showed a significant increase in STX1A and VAMP2 expression (p < 0.001) in high-grade tumor cells compared to normal and low-grade tumors. These findings suggest that elevated expression of STX1A and VAMP2 might have caused the abnormal progression and invasion of cancer cells leading to the transformation of cells into high-grade tumor in bladder cancer