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Articles 1 - 14 of 14
Full-Text Articles in Medical Physiology
Impact Of Alcohol On Bone Health In People Living With Hiv: Integrating Clinical Data From Serum Bone Markers With Morphometric Analysis In A Non-Human Primate Model, Alexandra Denys, Allison Norman, Daniel S. Perrien, Larry J. Suva, Liz Simon, Lee S. Mcdaniel, Tekeda Ferguson, Kim Pedersen, David Welsh, Patricia E. Molina, Martin J.J. Ronis
Impact Of Alcohol On Bone Health In People Living With Hiv: Integrating Clinical Data From Serum Bone Markers With Morphometric Analysis In A Non-Human Primate Model, Alexandra Denys, Allison Norman, Daniel S. Perrien, Larry J. Suva, Liz Simon, Lee S. Mcdaniel, Tekeda Ferguson, Kim Pedersen, David Welsh, Patricia E. Molina, Martin J.J. Ronis
School of Medicine Faculty Publications
People living with HIV (PLWH) represent a vulnerable population to adverse musculoskeletal outcomes due to HIV infection, antiretroviral therapy (ART), and at-risk alcohol use. Developing measures to prevent skeletal degeneration in this group requires a grasp of the relationship between alcohol use and low bone mass in both the PLWH population and its constituents as defined by sex, age, and race. We examined the association of alcohol use with serum biochemical markers of bone health in a diverse cohort of PLWH enrolled in the New Orleans Alcohol Use in HIV (NOAH) study. To explore the effects of alcohol on bone …
The Effects Of Alcohol Consumption On Metabolic Factors In The Alive-Ex Study Participants, Meva Beganovic, Stefany D. Primeaux
The Effects Of Alcohol Consumption On Metabolic Factors In The Alive-Ex Study Participants, Meva Beganovic, Stefany D. Primeaux
Medical Student Research Poster Symposium
Alcohol consumption among people living with HIV (PLWH) is common and increases the risk for metabolic disorders such as insulin resistance and diabetes. Adiponectin is an adipokine, produced in adipocytes, that protects against insulin resistance by increasing insulin sensitivity and thus may play a preventative role against the development of metabolic disease. Previous studies have demonstrated an inconsistency regarding the impact of alcohol consumption on adiponectin levels. In a cross-sectional analysis of participants enrolled in the ALIVE-Ex Study, we did not find a significant relationship between at-risk alcohol use, as measured by Alcohol Use Disorders Identification Test (AUDIT) score, in …
Translational Investigation Of Sex Differences In Alcohol Analgesic Efficacy: Comparison Across Preclinical And Clinical Domains, Sumin Lee, Noor Alrashed, Erin Davis, Jessica A. Cucinello-Ragland, Patricia E. Molina, Scott Edwards
Translational Investigation Of Sex Differences In Alcohol Analgesic Efficacy: Comparison Across Preclinical And Clinical Domains, Sumin Lee, Noor Alrashed, Erin Davis, Jessica A. Cucinello-Ragland, Patricia E. Molina, Scott Edwards
Medical Student Research Poster Symposium
Although chronic pain affects over 220 million Americans and significantly contributes to both the development and maintenance of alcohol use disorder (AUD), there is an alarming gap in knowledge regarding the mechanisms underlying the anti-nociceptive effects of alcohol. The goals of the current project were to: 1) relate self-reported pain rating in people living with HIV (PLWH) and 2) investigate neuroadaptations in the phosphorylation status of excitatory and inhibitory protein markers produced by alcohol in the central amygdala (CeA) and the insula in an animal model of chronic inflammatory pain. Towards our first goal, we asked participants in the New …
The Effect Of Nicotine Inhalation On Taste Receptor Gene Expression And Fungiform Papillae Density, Chloe Sterling, Jolie Primeaux, Jason Gardner, Stefany Primeaux
The Effect Of Nicotine Inhalation On Taste Receptor Gene Expression And Fungiform Papillae Density, Chloe Sterling, Jolie Primeaux, Jason Gardner, Stefany Primeaux
Medical Student Research Poster Symposium
BACKGROUND: Smoking is one of many acquired causes of smell and taste disorders. The effect on taste may be due to cigarette smoke causing a gustatory disturbance through changing the form, quantity, and vascularization of taste buds. Nicotine’s negative impact on taste buds is elicited through aversive sensory effects like oral irritation and pain as well as bitter taste. Taste buds are located on fungiform, circumvallate, and foliate papillae found on the tongue. Taste receptor cells can be stimulated by one of five basic taste qualities, which are sweet, bitter, umami (savory), salty, and sour. More recently, fat has been …
The Characterization Of Rodent Diet Influences On Ethanol Consumption In Mice, Selby White, Franciely Paliarin, Evan Dore, Cameron Gabriel, Rajani Maiya
The Characterization Of Rodent Diet Influences On Ethanol Consumption In Mice, Selby White, Franciely Paliarin, Evan Dore, Cameron Gabriel, Rajani Maiya
Medical Student Research Poster Symposium
The gut-brain axis is a distinct, yet uncharacterized tract of the nervous system that provides direct communication between the myenteric and the central nervous systems. The gut-brain axis is implicated in numerous underlying pathological phenomena, such as depression, Parkinson’s disease, and autoimmune disorders. Signaling along the gut-brain axis is primarily mediated by the Vagus nerve, which projects to the Nucleus Tractus Solitarius (NTS). From the NTS, projections link to higher order brain structures, namely reward regions, such as the paraventricular nucleus of the hypothalamus, Locus Coeruleus and the Prefrontal cortex. Alcohol Use Disorder is a complex and widespread disease with …
Chronic Binge Alcohol Impairs Myoblast Differentiation: Role Of Microrna-206, Peter Bergeaux, Brianna Bourgeois, Patricia E. Molina, Liz Simon
Chronic Binge Alcohol Impairs Myoblast Differentiation: Role Of Microrna-206, Peter Bergeaux, Brianna Bourgeois, Patricia E. Molina, Liz Simon
Medical Student Research Poster Symposium
Background: With recent advances in antiretroviral therapy, people living with HIV (PLWH) now have a near-normal life expectancy. As such, PLWH experience aging-related comorbidities, such as metabolic disorders and frailty earlier in life than the general population. At-risk alcohol use is twice as likely in PLWH compared to the general population and alcoholic myopathy occurs in 40- 60% of people with an alcohol use disorder. Previous studies demonstrate that chronic binge alcohol (CBA) in simian immunodeficiency virus (SIV)-infected rhesus macaques causes decreased myoblast differentiation and downregulation of microRNA-206 (miR-206) in skeletal muscle. Additionally, lower miR-206 expression is associated with increased …
The Role Of Traf3ip2 In The Progression Of Alcoholic Cardiomyopathy, Nicholas R. Harris, Joshua M. Edavettal, Jason D. Gardner
The Role Of Traf3ip2 In The Progression Of Alcoholic Cardiomyopathy, Nicholas R. Harris, Joshua M. Edavettal, Jason D. Gardner
Medical Student Research Poster Symposium
Alcoholic Cardiomyopathy (ACM) manifests in humans after excessive alcohol consumption and is characterized by ventricular dilation and cardiac function impairment. Previous studies have identified deterioration of mitochondrial homeostasis, increased oxidative stress, and inflammation as mechanisms of ACM development. However, little is known of the molecular mechanism of ACM. Here, we focus on the role of TRAF3IP2, a proinflammatory cytoplasmic adapter protein, in the pathogenesis of ACM. Previous work suggests TRAF3IP2 is a master regulator of inflammation; thus, being a potential therapeutic target. In this study, we used a mouse model of chronic plus binge alcohol feeding described by the NIAAA. …
Cellular Bioenergetics: Experimental Evidence For Alcohol-Induced Adaptations, Liz Simon, Patricia E. Molina
Cellular Bioenergetics: Experimental Evidence For Alcohol-Induced Adaptations, Liz Simon, Patricia E. Molina
School of Medicine Faculty Publications
At-risk alcohol use is associated with multisystemic effects and end-organ injury, and significantly contributes to global health burden. Several alcohol-mediated mechanisms have been identified, with bioenergetic maladaptation gaining credence as an underlying pathophysiological mechanism contributing to cellular injury. This evidence-based review focuses on the current knowledge of alcohol-induced bioenergetic adaptations in metabolically active tissues: liver, cardiac and skeletal muscle, pancreas, and brain. Alcohol metabolism itself significantly interferes with bioenergetic pathways in tissues, particularly the liver. Alcohol decreases states of respiration in the electron transport chain, and activity and expression of respiratory complexes, with a net effect to decrease ATP content. …
Are We Compulsively Chasing Rainbows?, Olivier George, Serge H. Ahmed, Nicholas W. Gilpin
Are We Compulsively Chasing Rainbows?, Olivier George, Serge H. Ahmed, Nicholas W. Gilpin
School of Medicine Faculty Publications
No abstract provided.
Alcohol Impairs Immunometabolism And Promotes Naïve T Cell Differentiation To Pro-Inflammatory Th1 Cd4+ T Cells, Patrick M. Mcternan, Danielle E. Levitt, David A. Welsh, Liz Simon, Robert W. Siggins, Patricia E. Molina
Alcohol Impairs Immunometabolism And Promotes Naïve T Cell Differentiation To Pro-Inflammatory Th1 Cd4+ T Cells, Patrick M. Mcternan, Danielle E. Levitt, David A. Welsh, Liz Simon, Robert W. Siggins, Patricia E. Molina
School of Medicine Faculty Publications
CD4+ T cell differentiation to pro-inflammatory and immunosuppressive subsets depends on immunometabolism. Pro-inflammatory CD4+ subsets rely on glycolysis, while immunosuppressive Treg cells require functional mitochondria for their differentiation and function. Previous pre-clinical studies have shown that ethanol (EtOH) administration increases pro-inflammatory CD4+ T cell subsets; whether this shift in immunophenotype is linked to alterations in CD4+ T cell metabolism had not been previously examined. The objective of this study was to determine whether ethanol alters CD4+ immunometabolism, and whether this affects CD4+ T cell differentiation. Naïve human CD4+ T cells were plated on anti-CD3 coated plates with soluble anti-CD28, and …
A Practical Approach To Assessing Physical Freshness: Utility Of A Simple Perceived Physical Freshness Status Scale, Okba Selmi, Danielle E. Levitt, Filipe Manuel Clemente, Hadi Nobari, Giulia My, Antonella Muscella, Katsuhiko Suzuki, Anissa Bouassida
A Practical Approach To Assessing Physical Freshness: Utility Of A Simple Perceived Physical Freshness Status Scale, Okba Selmi, Danielle E. Levitt, Filipe Manuel Clemente, Hadi Nobari, Giulia My, Antonella Muscella, Katsuhiko Suzuki, Anissa Bouassida
School of Medicine Faculty Publications
Background: Monitoring physical freshness is essential in assessing athletes’ conditions during training periods, training sessions, or competitions. To date, no single physical freshness scale has been successfully validated against training load variables and widely used scales measuring different facets of physical freshness. Objective: In this study, we develop and test the practical utility of a perceived physical freshness (RPF) scale to monitor the condition of the athletes and to prevent excessive fatigue and insufficient recovery during training sessions or competitions. Methods: Sixteen professional male soccer players (mean ± SD age 26 ± 4 years) were enrolled. Training load (TL), monotony, …
Friend Of The Devil: Negative Social Influences Driving Substance Use Disorders, Matthew B. Pomrenze, Franciely Paliarin, Rajani Maiya
Friend Of The Devil: Negative Social Influences Driving Substance Use Disorders, Matthew B. Pomrenze, Franciely Paliarin, Rajani Maiya
School of Medicine Faculty Publications
Substance use disorders in humans have significant social influences, both positive and negative. While prosocial behaviors promote group cooperation and are naturally rewarding, distressing social encounters, such as aggression exhibited by a conspecific, are aversive and can enhance the sensitivity to rewarding substances, promote the acquisition of drug-taking, and reinstate drug-seeking. On the other hand, withdrawal and prolonged abstinence from drugs of abuse can promote social avoidance and suppress social motivation, accentuating drug cravings and facilitating relapse. Understanding how complex social states and experiences modulate drug-seeking behaviors as well as the underlying circuit dynamics, such as those interacting with mesolimbic …
Gut Microbiome And Metabolome Variations In Self-Identified Muscle Builders Who Report Using Protein Supplements, Lauri O. Byerley, Karyn M. Gallivan, Courtney J. Christopher, Christopher M. Taylor, Meng Luo, Scot E. Dowd, Gregory M. Davis, Hector F. Castro, Shawn R. Campagna, Kristin S. Ondrak
Gut Microbiome And Metabolome Variations In Self-Identified Muscle Builders Who Report Using Protein Supplements, Lauri O. Byerley, Karyn M. Gallivan, Courtney J. Christopher, Christopher M. Taylor, Meng Luo, Scot E. Dowd, Gregory M. Davis, Hector F. Castro, Shawn R. Campagna, Kristin S. Ondrak
School of Graduate Studies Faculty Publications
Muscle builders frequently consume protein supplements, but little is known about their effect on the gut microbiota. This study compared the gut microbiome and metabolome of selfidentified muscle builders who did or did not report consuming a protein supplement. Twenty-two participants (14 males and 8 females) consumed a protein supplement (PS), and seventeen participants (12 males and 5 females) did not (No PS). Participants provided a fecal sample and completed a 24-h food recall (ASA24). The PS group consumed significantly more protein (118 ± 12 g No PS vs. 169 ± 18 g PS, p = 0.02). Fecal metabolome and …
Rethinking Integration Of Environmental And Behavioral Stressors; Back To Energy Homeostasis And Function, Patricia E. Molina
Rethinking Integration Of Environmental And Behavioral Stressors; Back To Energy Homeostasis And Function, Patricia E. Molina
School of Medicine Faculty Publications
No abstract provided.