Digital Commons Network^™

Temporal Evolution Of Brain Inflammation In The Bilateral Common Carotid Artery Stenosis Model Of Chronic Cerebral Hypoperfusion, Makayla F. Cox, Jill M. Roberts, Ryan K. Shahidehpour, David L. Dornbos Iii, Adam D. Bachstetter

Neuroscience Faculty Publications

Chronic cerebral hypoperfusion is a major contributor to vascular cognitive impairment and dementia, primarily through its disruption of white matter integrity and promotion of neuroinflammatory cascades. The bilateral common carotid artery stenosis (BCAS) model has emerged as the predominant experimental approach for studying the effects of chronic cerebral hypoperfusion, particularly in aging-relevant contexts. This review synthesizes current knowledge of inflammatory responses in the BCAS model, with an emphasis on their temporal progression and functional consequences. We begin by outlining the clinical burden of hypoperfusion, the rationale for BCAS, and the hemodynamic phases it produces. We then examine early neurovascular unit …

Dim Light At Night Impacts Circadian Rhythms And Alzheimer’S Disease-Like Neuroinf Lammation And Neuropathology In Humanized App Saa Knock-In Mice, Marilyn J. Duncan, Margaret R. Hawkins, Leke Bytyqi, Haleigh R. Whitlock, Savannah M. Shepard, Makayla F. Cox, Esther G. Drinkard, Teresa Macheda, Kelly N. Roberts, Katharina Kohler, Mary-Claire Schmidt, Carrie E. Johnson, Sridhar Sunderam, Bruce F. O'Hara, Michael Paul Murphy, Adam D. Bachstetter

Neuroscience Faculty Publications

Artificial light at night (light pollution) is widespread but understudied in the context of Alzheimer’s disease (AD). Sleep and circadian disruption have been linked to amyloid-β (Aβ) accumulation and neuroinflammation, but whether dim light at night (dLAN) modifies these processes remains unclear. We tested whether chronic dLAN exposure (8 lux during the dark phase, 8 weeks) alters circadian rhythms, amyloid pathology, and neuroinflammation in 12–13 month-old humanized APP knock-in (KI) mice. hAPP^SAA KI mice, which develop plaques, were compared with hAPP^WT KI controls carrying only a humanized APP sequence. dLAN reduced circadian rhythm amplitude and stability while increasing …

Endocranial Morphological Affinities Of The Early Holocene Individuals From Lagoa Santa And Implications For The Peopling Of The Americas, María Clara López-Sosa, Hugo Reyes-Centeno, Lumila Paula Menéndez, Rodrigo Elias Oliveira, Claudio Campi De Castro, André Strauss

Anthropology Faculty Publications

The ectocranial morphology of early Holocene humans from Lagoa Santa, Brazil has been described as exhibiting a ‘Paleoamerican’ form with affinities to African and Australasian individuals, in contrast to past and present Native Americans, who predominantly exhibit ‘Amerindian’ form. While this interpretation remains disputed, its led to the ‘Two Main Biological Components Model’, which proposes separate dispersals from Asia into the Americas. This study aims to assess whether the endocranial morphology of Lagoa Santa individuals similarly reflects these affinities. For this study, the overall endocranial morphology, as well as the temporal bones of the crania of twenty individuals from Lagoa …

Factors Associated With Opioid-Involved Overdose: Descriptive Data From A Randomized Controlled Trial Evaluating Extended-Release Buprenorphine For Perinatal Opioid Use Disorder, Sara M. Witcraft, Leah Holcomb, Yingjia Wei, Gerald Cochran, John T. Winhusen, Michelle R. Lofwall, Peter R. Martin, Jessica L. Young, Jessica Spinali, Constance Guille

Center on Drug and Alcohol Research Faculty Publications

Background: Opioid use disorder (OUD) during pregnancy is a leading contributor to peripartum morbidity and mortality, with overdose deaths rising significantly in recent years. Despite the identification of various factors associated with overdose events, including social, demographic, psychiatric, and neonatal outcomes, the relative contributions of these factors to peripartum overdose history (or lack thereof) remain unclear. Thus, this study aims to characterize factors associated with lifetime opioid-involved overdose events among currently pregnant individuals receiving buprenorphine (BUP) treatment for OUD.   Methods: Treatment-seeking pregnant individuals with an estimated gestational age of 6 to 30 weeks were enrolled in a large multisite randomized …

Durable Left-Ventricular Assist Device Inflow Thrombosis Following External Outflow Graft Obstruction, Mohammad J. Malik, Jin Woo Chung, Matthias Loebe, John C. Gurley, Emma J. Birks, Dhruv Kothari, Masashi Kawabori

Surgery Faculty Publications

Background: External outflow graft obstruction (EOGO) is an emerging complication due to improved pump durability. We experienced a rare sequence of complications, inflow thrombus formation following EOGO with reduced left-ventricular assist device flow.

Case Summary: A 41-year-old man, 2 years post HeartMate 3 (HM3) implantation, presented with low-flow from EOGO. Outflow graft stenting resulted in improvement but returned 1 month later with persistent low flow. Pump thrombosis was excluded. Flow had minimal response to RPM increase. Outflow graft was widely patent. Inflow obstruction was suspected, and HM3-to-HM3 exchange revealed extensive thrombus formation within the inflow cannula. Left-ventricular assist device flow …

Brain-Derived Extracellular Vesicles Potentially Mediate Crosstalk With Peripheral Organs In Neurodegenerative Diseases, Ramzi H. Hamdalla, Vibha B. Bhaskar, Changhai Tian

Toxicology and Cancer Biology Faculty Publications

Brain-Derived Extracellular vesicles (BDEVs) are emerging mediators of intra- and interorgan communication in neurodegenerative diseases (NDs) such as Alzheimer’s Disease (AD) and Parkinson’s Disease (PD). A growing body of evidence suggests that BDEVs play an important role in modulating intercellular communication within the central nervous system in the pathogenesis of many NDs. By transporting non-coding RNAs (e.g., miRNAs) and important pathological proteins, BDEVs also influence peripheral organs and contribute to the progression of disease in the central nervous system (CNS). This review extends the understanding of NDs beyond solely brain dysfunction and gives a novel framework for the progression of …

Liposome-Encapsulated Clodronate And Cox-2 Inhibitor Treatment Impair Ventilatory Recovery But Improve Compensatory Locomotor Function Following Cervical Spinal Cord Injury In Rats, Aaron L. Silverstein, Chris M. Calulot, Christopher J. Mclouth, John C. Gensel, Warren J. Alilain

Spinal Cord and Brain Injury Research Center Faculty Publications

Over half of all spinal cord injuries (SCIs) in the United States occur at the cervical level and can cause locomotor deficits and life-threatening breathing dysfunction. Interestingly, the bisphosphonate drug clodronate has shown efficacy in ameliorating tissue damage and improving locomotor recovery acutely after experimentally induced thoracic SCI. Thus, we hypothesized that clodronate treatment would improve recovery of breathing and locomotor function following a C2 hemisection (C2Hx) model of cervical SCI in rats. Serendipitously, changes to animal use guidelines led to the inclusion of carprofen, a non-steroidal anti-inflammatory drug (NSAID), as another independent variable in our study. We treated adult …

Traumatic Brain Injury Exacerbates Mitochondrial Dysfunction In App/Ps1 Knock-In Mice Through Time-Dependent Pathways, Elika Z. Moallem, Hemendra J. Vekaria, Teresa Macheda, Margaret R. Hawkins, Kelly N. Roberts, Samir P. Patel, Patrick G. Sullivan, Adam D. Bachstetter

Spinal Cord and Brain Injury Research Center Faculty Publications

Cerebral hypometabolism occurs in both traumatic brain injury (TBI) and Alzheimer's disease (AD), but whether these conditions act through distinct or overlapping mechanisms is unclear. TBI disrupts cerebral metabolism via blood–brain barrier damage, altered glucose transporter expression, calcium buffering abnormalities, and oxidative damage to metabolic enzymes. AD-related hypometabolism is linked to amyloid-β (Aβ) effects on mitochondria, including impaired respiration, oxidative stress, and altered mitophagy, fusion, and fission. We tested whether TBI-induced mitochondrial dysfunction exacerbates Aβ-mediated impairment using a closed-head injury (CHI) model in APP/PS1 knock-in (KI) mice. Injuries were delivered at 4–5 months of age, before plaque formation and mitochondrial …

Current Concepts In Hip And Core Assessment To Reduce The Risk Of Acl Injury, Jeremy M. Burnham, Anthony T. Drazick, Ghislain Aminake, Darren L. Johnson, Mary Lloyd Ireland, Brian W. Noehren

Orthopaedic Surgery and Sports Medicine Faculty Publications

Background: Hip and trunk (“core”) muscle dysfunction has emerged as a modifiable contributor to lower-limb biomechanics linked with non-contact anterior cruciate ligament (ACL) injuries. Clinicians increasingly target core stability and control during injury-prevention screening and post-operative rehabilitation programs; however, the literature lacks a focused synthesis of core-directed strategies for ACL injury mitigation. The purpose of this current concepts review is to synthesize current evidence on hip- and core-focused assessment and rehabilitation strategies that may mitigate ACL injury risk.

Design: Current Concepts Review.

Methods: A narrative search of PubMed and Google Scholar (January 2000 – April 2025) identified biomechanical, prospective, interventional, …

Candidate Interaction Partners Of Calpain-5 Suggest Clues To Its Involvement In Neovascular Inflammatory Vitreoretinopathy, Jozsef Gal, Vimala Bondada, Rachel Crasta, Dorothy E. Croall, Calvin P. Vary, James W. Geddes

Spinal Cord and Brain Injury Research Center Faculty Publications

Although calpain-5/CAPN5 is widely expressed in mammals, little is known regarding its functions. Pathogenic mutations of CAPN5 are causal for a devastating autoimmune eye disease, neovascular inflammatory vitreoretinopathy (NIV). To provide insight into both the physiological and pathological roles of CAPN5, it is essential to identify candidate interaction partners and possible substrates. Human SH-SY5Y neuroblastoma cells, transfected with full-length catalytically dead (Cys81Ala) CAPN5-3×FLAG, were used for anti-FLAG co-immunoprecipitation (co-IP) and quantitative proteomics using Sequential Window Acquisition of all THeoretical mass spectra (SWATH-MS). Fifty-one proteins were enriched at least four-fold, p < 0.01, relative to cells transfected with an empty FLAG vector. A high proportion (24/51) of candidate CAPN5 interaction partners are associated with protein quality control, including components of the chaperonin, chaperone, and ubiquitin–proteasome systems. Additional candidate interactors include tubulins, kinases, phosphatases, G proteins, and mitochondrial proteins. CAPN5 interactions for 14 of the candidate proteins were confirmed by co-IP and immunoblotting. Of these 14 proteins, 11 exhibited in vitro calcium-induced proteolysis following co-IP with WT CAPN5-3×FLAG. Impaired calcium-induced proteolysis of co-IP proteins was observed for the pathogenic CAPN5 variants R243L and R289W. Further studies are needed to validate the association of candidate CAPN5 interactors with proteins and complexes suggested by the SWATH-MS and co-IP results, and the possible role of CAPN5 within such complexes. The possible involvement of CAPN5 in protein quality control is relevant to NIV, as defects in protein quality control have been implicated in inherited retinal disorders. Proteomic data are available via ProteomeXchange with identifier PXD068008.

Difficult-To-Treat Rheumatoid Arthritis With Concomitant Yao Syndrome With Response To Dual-Inhibitor Therapy, Nawar Aljundi, Paramarajan Piranavan

Internal Medicine Faculty Publications

No abstract provided.

An Unbiased Molecular Characterization Of Peripartum Cardiomyopathy Hearts Identifies Mast Cell Chymase As A New Diagnostic Candidate, J. F. Mulvey, C. Sailer, J. S. Achter, Gregory Nathaniel Milburn, R. C. Bretherton, K. Kahnert, S. Erbil Bilir, H. Hvid, C. Pyke, F. Gustafsson, L. Adamo, Kenneth S. Campbell, K. M. Herum, A. Lundby

Internal Medicine Faculty Publications

Peripartum cardiomyopathy (PPCM) is a rare form of acute heart failure that develops in women toward the end of pregnancy or early postpartum. No effective, specific treatment for PPCM is available and heart transplantation or mechanical circulatory support may be required in severe cases where drug treatment for heart failure is insufficient. The mechanisms through which the disease progresses are not well understood, and despite similar clinical characteristics to dilated cardiomyopathy of other etiologies (nonperipartum cardiomyopathy; NPCM) it is not known how the molecular remodeling differs between these groups. We aimed to provide insight into the human PPCM heart using …

Comparative In Vitro Activity Of Aztreonam–Avibactam And Aztreonam Plus Ceftazidime–Avibactam Against Stenotrophomonas Maltophilia Complex, Ashlan J. Kunz Coyne, Rachel Gray, Pavani Gonnabathula, Elizabeth S. May, Pranita A. Tamma, Alex Do

Pharmacy Practice and Science Faculty Publications

Members of the Stenotrophomonas maltophilia complex are intrinsically multidrug-resistant pathogens that disproportionately affect critically ill patients. Aztreonam–avibactam (ATM–AVI), FDA approved in 2025, combines aztreonam (ATM; stable to L1 β-lactamase) with avibactam (AVI; an L2 β-lactamase inhibitor). Aztreonam plus ceftazidime–avibactam (ATM–CZA) has been used as a surrogate for ATM–AVI, but direct comparisons between the two regimens are lacking. Twenty-three clinical S. maltophilia complex isolates underwent broth microdilution (BMD) testing for ATM, ceftazidime, ATM–AVI, and ATM–CZA, with gradient diffusion performed in parallel for ATM–AVI and ATM–CZA. Static 24-h time-kill assays at humanized steady-state Cmax concentrations evaluated bactericidal activity (≥3-log₁₀ reduction). Semi-mechanistic pharmacodynamic …

Clinical And Demographic Characteristics Of Participants In A Hepatitis C Treatment Trial In Rural Kentucky: How Policies Around Treatment Access May Impact Elimination Efforts In The United States, Jennifer R. Havens, Brittney D. Williams, Takako Schaninger, Virginia A. Shepherd-Tackett, Michelle R. Lofwall, Michele Staton, Sharon L. Walsh, Hannah K. Knudsen

Behavioral Science Faculty Publications

Introduction: The advent of curative direct acting antiviral (DAA) drugs to treat those actively infected with the hepatitis C virus (HCV) has allowed for discussion around HCV elimination. Restrictive state-by-state policies for the coverage of DAAs for Medicaid recipients may hamper elimination efforts in the United States by limiting access to these curative treatments. Methods: The purpose of the current analysis was to examine the sociodemographic, drug use and clinical characteristics of participants in the Kentucky Viral Hepatitis C Treatment (KeY Treat) study in the context of Medicaid policies in the United States. The goal of KeY Treat was to …

The Interaction Of Tobacco Retailer Density And Rurality With Tobacco Use Prevalence In Kentucky, Shyanika W. Rose, W. Jay Christian, Judy Van De Venne, Delvon T. Mattingly, Bethany Shorey Fennell, Saber Feizy, Mary Kay Rayens

Behavioral Science Faculty Publications

Purpose: Tobacco retailer density is a key correlate of tobacco use prevalence in the United States, but this relationship has typically been examined in urban areas. We examined the relationship between retailer density and tobacco use across Kentucky counties, a state with high smoking rates and a substantial rural population.

Methods: We obtained a list of tobacco retailers from the 2021 Kentucky Synar program, used for minor’s access inspections. We merged these data with county-level prevalence estimates for cigarette and smokeless tobacco use for each county in Kentucky, calculated using pooled 3-year estimates (2017-2019) of Kentucky Behavioral Risk Factor Surveillance …

Acceptability And Appropriateness Of Harm Reduction Vending Machines Compared To Syringe Service Programs In Appalachian Kentucky, Hannah K. Knudsen, Jennifer R. Havens, April M. Young

Behavioral Science Faculty Publications

Objective:

Many rural people who inject drugs do not use syringe service programs (SSPs). In addition, people who use drugs but do not inject may perceive that SSPs are not intended for their use. Harm reduction vending machines (HRVMs) may be preferred by some individuals. This study examines attitudes and preferences regarding HRVMs to consider possibilities for enhancing the reach of harm reduction services. Method:

Structured surveys were conducted with 712 people who use drugs in two rural Appalachian counties in Kentucky. Participants rated the acceptability/appropriateness of SSPs and HRVMs; HRVM preference was the difference between the two scales. Linear …

Perceived Neighborhood Disadvantage And Current Nicotine Pouch Use Among U.S. Youth, Delvon T. Mattingly, Meman Diaby, Jing Zhang, Juhan Lee, Melinda J. Ickes

Behavioral Science Faculty Publications

Introduction: Nicotine pouches (NPs) are emerging nicotine products that appeal to youth due to their discreet use, tobacco-free formulation, and flavor availability. However, given their recent introduction to the market, little is known about how neighborhood environments may influence US youth NP use.

Methods: We imputed cross-sectional data from the 2023 National Youth Tobacco Survey (n = 22,069, ages 9 + years) and developed a neighborhood risk score (range: 1–4) by averaging 10 items related to neighborhood disorder, safety, and disadvantage. To estimate associations between the risk score and current (past 30-day) NP use, we fit logistic regression models adjusted …

Beyond Weak Ties In Prison: An Investigation Of Core Support Networks Of Incarcerated Persons, Siyun Peng, Martha Tillson, Maria Rockett, Marisa Booty, Carrie B. Oser

Behavioral Science Faculty Publications

Tie formation has been a core interest of network researchers. However, most existing research on tie formation in prisons has focused on weak ties, assuming that a core network approach is less applicable within total institutions such as prisons. Drawing on egocentric network data from 389 incarcerated individuals and 1352 named network members, this study demonstrates that relationships between incarcerated persons can be examined using a core support network framework. We find that about 20 % of participants include at least one incarcerated peer in their core support networks, with these ties providing both practical and emotional support comparable to …

Decreasing Prevalence In Youth Depressive Episodes: Evidence From The 2021-2024 National Survey On Drug Use And Health, R. Andrew Yockey, Aminul Apu, Timothy Grigsby, Jacob Bleasdale, Delvon T. Mattingly, Rachel Hoopsick

Behavioral Science Faculty Publications

Background: Major depressive disorder (MDD) is a leading contributor to the global burden of disease and commonly develops during adolescence. The COVID-19 pandemic was linked to significant increases in depressive symptoms among youth, but less is known about whether these increases have continued in recent years.

Objective: Using the first four consecutive years of methodologically comparable national data since the pandemic, we examined changes in past-year major depressive episode (MDE) among U.S. adolescents aged 12–17 years from 2021 to 2024 and evaluated demographic and substance use factors.

Methods: We analyzed pooled, cross-sectional data from the 2021–2024 National Survey on Drug …

Differences In The Use Of Smokeless Tobacco, Alcohol, And Co-Use Among U.S. High-School Students: Analysis Of National Youth Risk Behavior Survey Data, Ganna Kostygina, Yoonsang Kim, Alex Kresovich, Simon Page, Shyanika W. Rose, Sherry L. Emery

Behavioral Science Faculty Publications

Introduction: This study was aimed to examine the bidirectional relationships and patterns of concurrent smokeless tobacco and alcohol use among U.S. high-school students, investigating whether demographic characteristics and behavioral factors differentially predict concurrent versus single substance use of smokeless tobacco or alcohol (referred to as either-alone use in the remaining parts of this paper).

Methods: Analysis of nationally representative Youth Risk Behavior Survey data was perfomed, combining 3 cross-sectional surveys (2019, 2021, 2023) from 39,164 students in Grades 9–12. Logistic regression examined the bidirectional smokeless tobacco–alcohol associations, whereas multinomial models compared the characteristics of concurrent users, users of smokeless tobacco …

An Exploratory Study To Determine The Feasibility And Processes Needed To Implement The Immunization Neighborhood To Increase Hpv Vaccination Among African American Adolescents And Adolescents In The General Population: A Multi-Partner Perspective, Jennifer Cunningham-Erves, Freneka Minter, Pamela C. Hull, Amanda F. Dempsey, Alexandria Demons, Mariya Chalise, Consuelo H. Wilkins

Behavioral Science Faculty Publications

Limited education and healthcare access are major contributors to Human Papillomavirus (HPV) vaccination disparities among African American adolescents. The Immunization Neighborhood (IN) involves enhanced communication and collaboration among providers to address people’s needs by expanding access points and education to increase vaccination. Because needs of immunization providers and parents to effectively collaborate are unknown, this study explored the feasibility of and processes needed for IN utilization across key partners: pediatricians, pharmacists, school nurses, health department staff, and African American parent–child dyads. We conducted a semi-structured interviews in a qualitative, descriptive study with a purposive sample of 30 African American parent–child …

Extended-Release Vs Sublingual Buprenorphine In Pregnancy Through 12 Months Post Partum: A Randomized Clinical Trial, T. John Winhusen, Michelle R. Lofwall, Frankie Kropp, Daniel Lewis, Marcela C. Smid, Jessica L. Young, Candace Hodgkins, Elizabeth E. Krans, Zachary Hansen, Elisha M. Wachman, Davida M. Schiff, Constance Guille, Vania Rudolf, Tara Chowdhury, Lawrence Leeman, Mitra Lewis, Abigail G. Matthews, Gerald Cochran, Jacquie King, Christine Wilder, Carmen Rosa

Behavioral Science Faculty Publications

Importance: Treating opioid use disorder (OUD) in pregnancy with sublingual buprenorphine is an evidence-based practice, but it has disadvantages that could be addressed with an extended-release formulation.

Objective: To evaluate the effectiveness and safety of extended-release buprenorphine vs sublingual buprenorphine for OUD in pregnancy through 12 months post partum.

Design, Setting, and Participants: This 2-group, open-label, noninferiority, randomized clinical trial was conducted between July 2, 2020, and October 30, 2024, among adults with OUD and a singleton pregnancy of 6 to 30 weeks’ gestational age at 13 outpatient cross-disciplinary peripartum OUD treatment sites.

Interventions: Randomization to sublingual or extended-release buprenorphine …

Feeding The Family—A Food Is Medicine Intervention: Preliminary Baseline Results Of Clinical Data From Caregivers And Children, Gabriela Drucker, Christa Mayfield, Elizabeth T. Anderson Steeves, Sara Maksi, Tabitha Underwood, Julie Brown, Marissa Frick, Alison Gustafson

Behavioral Science Faculty Publications

Background/Objectives: Food is Medicine (FIM) programs have been shown to be effective at addressing food and nutrition insecurity among individuals. However, more evidence is needed to determine effective interventions at the household level and their impact on child health outcomes. Feeding the Family is a randomized controlled trial which aims to determine whether the amount of food provided and the ability to select foods in FIM interventions have an incremental effect on child and caregiver clinical outcomes relative to nutrition counseling alone. The objective of this paper is to describe the population at baseline among those enrolled in Feeding the …

Frequent Police Contact And Nonfatal Overdose Among People Who Use Drugs In Rural Appalachia, Javier A. Cepeda, Talia Loeb, Zach R. Salazar, Brittney D. Williams, Brooke Hiltz, Brandon Del Pozo, Eileen V. Pitpitan, Leo Beletsky, April M. Young, Jennifer R. Havens

Behavioral Science Faculty Publications

Introduction: Police contact shapes subsequent health practices and outcomes among people who use drugs (PWUD). However, the relationship between police encounters with overdose remains under-researched. We evaluated how police stop-and-search was associated with nonfatal overdose and identified correlates of frequent police contact among PWUD in rural Kentucky.

Methods: From May 2023– April 2024, 774 PWUD were enrolled in the Social Networks of Appalachian People and KyOSK studies. The exposure of interest was self-reported police stop-and-search in the past 6 months (0, 1–3, ≥4 times). The primary outcome was self-reported nonfatal overdose in the past 6 months. We evaluated the association …

The Receipt Of Psychological Services And Acceptability Of Local Follow- Up Care For Childhood Cancer Survivors: Are There Rural Vs. Urban Differences?, Tyrone F. Borders, Abigayle Feather, Jerod L. Stapleton, John A. D’Orazio, Eric B. Durbin

Psychology Faculty Publications

Purpose This study examined rural and urban parents’ reports of their children’s receipt of general follow-up care and psychological services, ratings of the acceptability of common sources of follow-up care, and ratings of local/nearby follow-up care access and effectiveness.

Methods A cross-sectional, quantitative survey was conducted among 238 (139 urban, 46 rural adjacent, and 53 rural non-adjacent) parents of childhood cancer survivors (ages 2–17 and at least 2 years since cancer diagnosis) recruited through the Kentucky Cancer Registry. Bivariate analyses and multivariable logistic regressions adjusting for predisposing, enabling, and need factors tested for differences across residence in urban counties, rural …

Formative Research To Identify Contributors To Risky Drinking And Adapt An Alcohol Reduction Intervention Among Young Adults Vulnerable To Hiv: Qualitative Focus Group Study, Fidelis Y. Sesenu, Sally Kirklewski, Bryce Takenaka, Jaime Brown, Erin Nicholson, Kimberly Haney, Kaylia Carroll, Arjee Restar, Donte Travon Boyd, Keisa Fallin-Bennett, Trace Kershaw, Carolyn Lauckner

Communication Faculty Publications

Background: Across populations, risky drinking has been demonstrated to increase HIV risk behaviors. This is of special concern for sexually minoritized cisgender men and gender-diverse young adults (aged 18‐34 years), who report greater incidence of hazardous drinking (as defined by the Alcohol Use Disorders Identification Test - Consumption criteria) and HIV compared to their heterosexual and/or cisgender peers.

Objective: This study aimed to examine alcohol perceptions, patterns of use, and the role that anti-LGBTQ+ (lesbian, gay, bisexual, transgender, queer) policies and discrimination played in alcohol risk behaviors for sexually minoritized cisgender men and gender-diverse individuals. Results were used to inform …

A Ubiquitous Organophosphate Flame Retardant Disrupts Energy And Glucose Homeostasis In Mice, Krystal M. Sewell, Kelly Oriakhi, Sara Y. Ngo Tenlep, Megan L. Weaver, Mansura Shahad Bawa, Se-Hyung Park, Shubh Saraswat, Xiaohua D. Zhang, Robert N. Helsley, Samir Softic, Cetewayo S. Rashid

Pharmacology and Nutritional Sciences Faculty Publications

Organophosphate flame retardants (OPFRs) are used in many consumer products, and their presence in our environment raises concerns about potential health dangers. In humans, exposure to OPFRs, such as tris(1,3-dichloro-2-propyl) phosphate (TDCPP) is associated with metabolic disorders such as obesity, hyperglycemia, and insulin resistance. Our current study seeks to determine how TDCPP exposure affects body composition, glucose homeostasis, and energy balance in a rodent model. C57Bl/6 J mice were divided into two weight-matched groups and fed purified low phytoestrogen diets containing either 0.1 % DMSO (control) or TDCPP 415 mg/kg resulting in an approximate exposure of 50 mg/kg/day. Both male …

Contribution Of Metabolism-Independent Glucose Sensing To Metabolic Homeostasis, Nadia Rashid, Kavaljit H. Chhabra

Pharmacology and Nutritional Sciences Faculty Publications

Glucose sensing and signaling are central to cellular metabolic machinery for the regulation of metabolic homeostasis. Glucose sensing has been almost always assumed to be coupled with glucose metabolism; however, recent findings have unraveled metabolism-independent sensing mechanisms. Here, we discuss whether glucose transporters (GLUTs) and sodium-glucose co-transporters (SGLTs) may also function as glucose sensors independent of their roles in transporting glucose. Moreover, we review the emerging roles of G protein-coupled receptors (GPCRs) in sensing glucose and, consequently, initiating its signaling pathways in a cell-specific manner. Altogether, this review offers insights into the newly identified glucose sensing mechanisms and highlights the …

Anatomical Atlas Of Kinase Responsiveness To Weight Gain: Adipose Depot Reprogramming In Diet-Induced Adiposity, Wang-Hsin Lee, Zachary A. Kipp, Sally N. Pauss, Genesee J. Martinez, Mei Xu, Terry D. Hinds, Jr.

Pharmacology and Nutritional Sciences Faculty Publications

Background/Objectives: Adipose tissue depots located at different anatomical sites exert differential functions in response to adiposity and glucose intolerance. These fat depots exhibit distinct metabolic signaling patterns that may influence pathological fat accumulation, thereby affecting the efficacy of anti-obesity interventions. Nonetheless, the mechanisms underpinning depot-specific signaling and pathway responsiveness remain insufficiently understood.

Methods: Kinase activity was characterized during the progression of adiposity across five adipose tissue depots in obese versus lean mice using the advanced PamGene kinome technology. Furthermore, kinase pathways in human preadipocytes and mouse 3T3-L1 preadipocytes were analyzed and compared with those in their differentiated, mature adipocytes. The …

Social Engagement Moderates The Relationship Between Cognitive Functioning, Depressive Symptoms, And Restless Sleep In Older Black Adults, Sunkanmi Folorunsho, Olufunmilola Abraham, Darlingtina K. Esiaka

Pharmacy Practice and Science Faculty Publications

INTRODUCTION: Older Black adults face higher dementia risk, but it is unclear whether social engagement offsets the effects of depression and restless sleep.

METHODS: We analyzed 1,905 Black adults aged 50+ from the 2016-2020 Health and Retirement Study (HRS). Linear mixed-effects models tested how depressive symptoms, restless sleep, and social engagement predicted baseline cognition and cognitive decline.

RESULTS: Higher depressive symptoms and restless sleep were associated with lower baseline cognition (about 0.2 and 0.5 points lower) and faster decline (β×time ≈ −0.07 and −0.05). Greater social engagement predicted higher baseline cognition (about 0.6 points higher) and slower decline (β×time ≈ …