Chemicals and Drugs Commons^™

Medical Spa Directorship And Cosmetic Procedures In Jacksonville, Florida, Michelle Militello, Rachel Dykes, Karthik Krishnamurthy

South Atlantic Division GME Research Day 2025

No abstract provided.

Nitrous Oxide Induced Psychosis: A Case Report, Brianne Kimmet, Barbara Gracious

South Atlantic Division GME Research Day 2025

No abstract provided.

Salicylate Overdose Protocols For Family Medicine Physicians, Christine Tamayo, Denae Kappers, Patricia Gilford

South Atlantic Division GME Research Day 2025

No abstract provided.

Shake It Off: Common Angina Medication Ranolazine And Its Rare Reversible Myoclonus Side Effect, Minh Nguyen, Sheharyar Abbasi, Dustin Rizzieri, Robert Sherertz

South Atlantic Division GME Research Day 2025

No abstract provided.

A Novel D-Peptide Modulates Dclk1 Gelsolin Interactions, Reducing Pdac Tumor Growth, Landon L. Moore, Dongfeng Qu, Parthasarathy Chandrekesan, Kamille Pitts, Randal May, Byron E. Anderson, Milton L. Brown, Courtney W. Houchen

Department of Medicine Faculty Publications

What drives inflammation-associated tumorigenesis and progression in pancreatic ductal adenocarcinoma (PDAC)? Doublecortin-like kinase 1 (DCLK1) is a central driver of inflammation-associated tumorigenesis, with elevated expression linked to worse clinical outcomes. Two isoforms of DCLK1 possess a unique extracellular domain (ECD). DCLK1 isoform 2 contains two microtubule-binding domains, while isoform 4, lacks the microtubule-binding domains but, plays a pivotal role in tumor progression. We identified novel D-peptides that selectively target this ECD, significantly suppressing PDAC cell proliferation in vitro and tumor growth in xenograft models without inducing cell death. In silico modeling and binding assays revealed DCLK1 isoform 4 interacts with …

Discordance Between Profound Hyperprolactinemia And Hormone Immunostaining In A Pit1-Positive Pituitary Neuroendocrine Tumor. A Rare Case Report, Aneela Arif, Radwa Osman

Department of Medicine Faculty Publications

We present a rare case of a functioning macroprolactinoma with negative hormone immunohistochemistry (IHC) but positive PIT1 transcription factor staining. This case highlights the diagnostic value of transcription factor IHC when clinical and biochemical findings are discordant with hormone staining. An 18-year-old female with unremarkable medical history presented with high prolactin levels, galactorrhea, and amenorrhea for 6 months. She was not on any medications, and was not sexually active, or trying to conceive. Prolactin levels were markedly elevated (462, 1,067, and 1,282 ng/mL). MRI showed a 13×12×14 mm T2-hyperintense, slightly cystic pituitary macroadenoma with suprasellar extension and optic chiasm compression, …

Fibrinolysis For Apical Thrombus As A Bridge To Emergent Valve-In-Valve Transcatheter Aortic Valve Replacement, Nicholas J. Valle, Omar A. Saleh, Mani C. Akunuri, Parth K. Parikh, Joshua A. Cohen, Deepak R. Talreja, Matthew R. Summers

Department of Medicine Faculty Publications

Background

Left ventricular (LV) thrombus is traditionally a contraindication to transcatheter aortic valve replacement due to embolic risk. Consequently, management of valvular cardiogenic shock complicated by LV thrombus identifies unique challenges that require innovative strategies.

Case Summary

A 58-year-old woman with critical bioprosthetic aortic stenosis, cardiogenic shock, and large LV thrombus (2.8 × 2.6 cm) underwent successful valve-in-valve transcatheter aortic valve replacement after systemic fibrinolysis bridge therapy.

Why Beyond the Guidelines

Current guidelines contraindicate transcatheter aortic valve replacement in patients with LV thrombus. This case demonstrates the novel use of low-dose, slow infusion tissue plasminogen activator as a bridge therapy …

Diverticulitis—New Evidence To Share With Patients, Nicholas B. D'Alessandro, Tarun Vippa, Edward C. Oldfield Iv, David A. Johnson

Department of Medicine Faculty Publications

Diverticulitis is one of the most common gastrointestinal causes of hospitalization in Western society. While previously characterized as a disease of older patients, new literature highlights an increasing incidence among the younger population. Over the past few decades, the understanding of etiology and management of diverticulitis has changed drastically. New data refute past beliefs while promoting other novel recommendations to mitigate incidence and subsequent complications. Data now confirms the safety and possible protective benefit of particulate food, while highlighting evidence-based approaches for the use of diagnostic imaging and antibiotics. We recognize modifiable and non-modifiable risk factors that are commonly seen …

Exploring Differences In Cannabis Use And Harm Perceptions Among Sexual Minority And Heterosexual Females: A Brief Report, Sarah J. Ehlke, Samantha A. Fitzer, Kendra Rigney

Psychology Faculty Publications

Objective: Sexual minority women (SMW) have higher rates of cannabis use compared to heterosexual women, which may be partially attributed to lower harm perceptions. However, no study has examined if the association between harm perceptions and cannabis use is stronger for SMW than heterosexual women. This study examined if sexual identity (SMW vs. heterosexual woman) moderated the association between harm perceptions and past 30-day cannabis use among a sample of female young adults (18-25 years old). Method: Participants were 949 (29.8% SMW; Mean age = 24.33; 92.1% non-Hispanic White) females (99.3% cisgender) recruited from Amazon Mechanical Turk who reported weekly …

Willingness To Use Long-Acting Injectable Pre-Exposure Prophylaxis (Lai-Prep) Among Black Cisgender Women In The Southern United States, Sylvia Shangani, Jaquetta M. Reeves, Kristin Heron, Jessica M. Sales, Kenneth K. Mugwanya

Psychology Faculty Publications

Background

Long-acting injectable pre-exposure prophylaxis (LAI-PrEP) for HIV prevention may improve adherence for those with concerns with daily pills. Limited data exist on LAI-PrEP acceptability among Black women in the U.S., a population vulnerable to HIV. We assessed willingness to use LAI-PrEP among Black women eligible for PrEP in the Southern U.S.

Methods

We conducted a cross-sectional online survey of HIV-negative Black women from March to June 2022 in the U.S. South. Participants provided information on sociodemographic characteristics, HIV knowledge, PrEP awareness, and use, stigma, risk perception, medical mistrust, and healthcare access. Multivariate logistic regression models determined factors associated with …

Formulation Development Of Dual-Compartment Topical Inserts Combining Tenofovir Alafenamide And Elvitegravir For Flexible On-Demand Hiv Prevention, Vivek Agrahari, M. Melissa Peet, Neelima Chandra, Prakash Ramalingam, Pardeep K. Gupta, Sriramakamal Jonnalagadda, Onkar N. Singh, Timothy J. Mccormick, Gustavo F. Doncel, Meredith R. Clark

Department of Obstetrics & Gynecology Faculty Publications

Pre-exposure prophylaxis (PrEP) has emerged as a prominent approach for the prevention of HIV infections. While the latest advances have resulted in effective oral and injectable product options, there are still gaps in on-demand, event-driven, topical products for HIV prevention that are safe and effective. Here we describe the formulation development of a dual-compartment topical insert containing tenofovir alafenamide fumarate (TAF) and elvitegravir (EVG) that may be administered when needed, vaginally or rectally, pre- or post-coitus, for flexible HIV prophylaxis. Specifically, we describe the lab-scale formulation development, preclinical mucosal safety and pharmacokinetics (PK) testing in rabbits, long-term stability, and scale-up …

Mobile Health Intervention Tools Promoting Hiv Pre-Exposure Prophylaxis Among Adolescent Girls And Young Women In Sub-Saharan Africa: Scoping Review, Alex Emilio Fischer, Homaira Hanif, Jacob B. Stocks, Aimee E. Rochelle, Karen Dominguez, Eliana Gabriela Armora Langoni, H. Luz Mcnaughton Reyes, Gustavo F. Doncel, Kathryn E. Muessig

Department of Obstetrics & Gynecology Faculty Publications

Background:

In 2022, 3100 adolescent girls and young women in sub-Saharan Africa experienced new HIV infections each week. HIV pre-exposure prophylaxis (PrEP) is effective at preventing HIV but has limited uptake and persistence. Mobile health (mHealth) interventions can improve medication adherence; however, their utility to improve PrEP adherence among adolescent girls and young women is not well established.

Objective:

This scoping review synthesizes evidence supporting mHealth for PrEP among adolescent girls and young women in sub-Saharan Africa and identifies strategies for further evaluation.

Methods:

We searched PubMed and Google Scholar databases, expert referrals, and reference lists using the following eligibility …

American Heart Association Blood Pressure Classification And Subsequent Risk Of Preeclampsia, Rebecca Horgan, Erkan Kalafat, Elena Sinkovskaya, Alfred Abuhamad, George Saade

Department of Obstetrics & Gynecology Faculty Publications

Background: In 2017, the American Heart Association (AHA) and American College of Cardiology updated their hypertension guidelines for the nonpregnant population, lowering the diagnostic thresholds to systolic blood pressure ≥130 mmHg or diastolic blood pressure ≥80 mmHg. This reclassification has raised important questions regarding whether blood pressure (BP) values previously considered within the normal range in pregnancy may, in fact, confer an increased risk for hypertensive disorders of pregnancy (HDPs).

Objective: To evaluate the association between first-trimester BP classified by AHA thresholds and the subsequent development of HDPs.

Study design: This was a secondary analysis of a prospective, multicenter cohort …

Reversible Degradation Of Peptidoglycan By Lytic Transglycosylases, Aaron Devereaux

Theses and Dissertations (Comprehensive)

Antimicrobial resistance continues to be a burden on the global healthcare system with an estimated cost of billions of dollars and millions of deaths each year. Recently, there has been little to no development on new antibiotics to treat bacterial infection, and any that are developed become resisted to within a few years. Both Gram-positive and Gram-negative bacteria contain a mesh-like layer called peptidoglycan (PG) that surrounds their cells providing strength, cell shape, and protection from their environments. This layer is a polymer of N-acetylmuramic acid (MurNAc) and N-acetylglucosamine (GlcNAc) connected via a b-1,4-glycosidic bond, with each strand being cross-linked …

Her2 Alterations Across Solid Tumors: Implications For Comprehensive Testing, Ahmed Ismail, Chimay Jani, Nusrat Jahan, Malla Midhun, Arnab Basu, Garima Gupta, Bassel El-Rayes, Sejong Bae, Tyler Mattox, Cyntanna Hawkins, Rebecca C. Arend, Mehmet Akce, Yanis Boumber, Aakash Desai

Department of Medicine Faculty Publications

Purpose

ERBB2 (HER2) alterations (e.g., overexpression, amplification, and mutations) are known to drive tumor progression. These changes, particularly in non-breast and gastric/gastroesophageal cancers, remain poorly characterized. With pan-tumor approval of HER2-targeted therapies like Trastuzumab deruxetecan (T-DXd), understanding ERBB2 alterations across diverse cancers is crucial.

Methods

HER2 analysis was conducted on 653 solid tumor specimens at the University of Alabama, using immunohistochemistry (IHC), copy number (CN) variation (CNV) assessment, and mutational profiling. The correlation between CN amplification and IHC expression was evaluated using Somers' D ordinal association.

Results

Of the 653 cases, HER2 IHC scores were distributed as 3 + (3.1%), …

Changes In Cardiovascular Risk Factors And Health Care Expenditures Among Patients Prescribed Semaglutide, Yuan Lu, Yuntian Lu, Tedi Totojani, Chungsoo Kim, Rohan Khera, Hua Xu, John E. Brush Jr., Harlan M. Krumholtz, Jason Abaluck

Department of Medicine Faculty Publications

Importance Semaglutide, a glucagon-like peptide-1 receptor agonist, has demonstrated substantial weight reduction and cardiovascular benefits in clinical trials. However, its association with clinical outcomes and health care expenditures remains underexplored.

Objective To evaluate changes in cardiovascular risk factors and health care expenditures among patients prescribed semaglutide across multicenter cohorts.

Design, Setting, and Participants This retrospective cohort study included 23 522 adults (≥18 years) who received an initial semaglutide prescription between January 1, 2018, and January 1, 2025, at Sentara Healthcare and between January 1, 2018, and May 1, 2025, at Yale New Haven Health System.

Exposure The first prescription of …

Psychedelic Minimalism: The Case Against Music In Psychedelic Therapy Settings, Samir A. Nader

Department of Medicine Faculty Publications

[Introduction: reframing the role of setting] In recent years, renewed attention has been given to the centrality of set and setting in psychedelic-assisted therapy. The Reporting of Setting in Psychedelic Clinical Trials (ReSPCT) guidelines reflect an evolving consensus: therapeutic outcomes are not solely pharmacologically determined but are heavily shaped by both the environment and the psychological state of the participant (2). Within this evolving paradigm, music has assumed a privileged role, framed as a therapeutic constant, typically curated to be emotionally supportive or evocative, and especially emphasized during peak psychedelic states (3). The prevailing assumption is that music facilitates safety, …

Effects Of Perinatal Exposure To Lipopolysaccharide And Acetaminophen On Learning In Adult Long-Evans Rats, Lucy A. Sivils

College of Graduate Studies: Theses & Dissertations

The present study investigated the individual and combined effects of elevated perinatal inflammation, oxidative stress caused by acetaminophen (APAP) exposure, or elevated inflammation and oxidative stress on adult learning behaviors in Long-Evans rats. While prior studies have examined these factors independently, the combined effects of inflammation and oxidative stress via APAP exposure during early development on learning-related behaviors remain unexplored. The present research aimed to address this gap by the analysis of potential long-term neurodevelopmental consequences of lipopolysaccharide (LPS)-induced inflammation and APAP-induced oxidative stress. LPS, APAP, or LPS + APAP was administered during the perinatal period: postnatal days (PD) 9, …

Synthesis Of Tu100 Analogs And Biological Assays, Feyisope Tonye Oladapo

College of Graduate Studies: Theses & Dissertations

TU100 (14-methyl-5H-5,12-epiminobenzo[4,5]cyclohepta[1,2-b]naphthalene-6,11,13(12H)-trione) exhibits exceptional chemotherapeutic properties. It operates via a distinct mechanism that triggers cell death to create cytotoxic effects while concurrently inhibiting topoisomerase I and II. Its efficacy rivals that of well-known chemotherapeutic drugs like Daunorubicin. The distinctive characteristics of TU100 have led to initiatives aimed at creating structurally similar compounds to discover even more effective bioactive alternatives.

The analog synthesis incorporated quinoxaline or its derivatives (diphenyl quinoxaline, dipyridinyl quinoxaline, and dibenzophenazine-10,13-dione) that have been shown to have promising chemotherapeutic effects. Synthesizing the hetero naphthoquinones required a multi-step synthetic process, so quinoxaline/ derivatives intermediates are first prepared, then the …

Inflammatory Mediators And The Rage Pathway In Placental Tissues Of Pregnancies Complicated By Severe Preeclampsia, Neelima Chandra, Thomas D. Kimble, Kathleen R. Heim, Sharon M. Anderson, Andrew P. Wong, Andrea R. Thurman, Gustavo F. Doncel

CONRAD Publications

Introduction: Preeclampsia (PE) is a complex multisystem disorder of pregnancy associated with abnormal placentation, vascular anomalies, and systemic inflammation and hypertension. Previous research assessing inflammatory triggers of the condition used plasma, amniotic fluid, or explant samples. Studies using placental tissue from either vaginal or cesarean deliveries are confined to semiquantitative analysis using subjective scoring methods and generally involve a small sample size.

Methods: In this study, we have quantified the expression of inflammatory mediators by immunohistochemical image analysis of archived placental tissues obtained from cesarean delivery of preeclamptic, chorioamnionitic, and normal pregnancies.

Results: Among the inflammatory mediators, we found a …