Digital Commons Network^™

Explainable Drug Side Effect Prediction In Central Neural System Via Biologically Informed Graph Neural Network, Tongtong Huang, Ko-Hong Lin, Rodrigo Machado-Vieira, Jair C Soares, Xiaoqian Jiang, Yejin Kim

Faculty, Staff and Student Publications

The early detection of potential side effects (SEs) is a critical yet formidable challenge within the realms of drug development and patient healthcare management. Conventional in-vitro or in-vivo approaches for SE detection are often not feasible to scale during the preclinical phase for numerous drug candidates. Innovations in explainable artificial intelligence offer the prospect of early detection of potential SEs for novel therapeutics prior to their release in the market, as well as the explication of the underlying biological mechanisms. In this context, we present a novel biologically informed graph-based model, called HHAN-DSI, which capitalizes on multimodal interactions among molecular …

Panic Disorder Treated With Individualised Homoeopathic Medicines: A Case Series, Hima Bindu Ponnam, Gr Kiranmayee Rompicherla

Indian Journal of Research in Homoeopathy

Introduction: Panic disorder is one category of generalised anxiety disorder that is commonly reported in a majority of the outpatient departments of primary care hospitals, especially in the COVID-19 post-pandemic era. Although its prevalence is lower compared to other anxiety disorders, panic disorder remains a serious concern, as it often leads to cardiorespiratory emergencies; therefore, prompt recognition and timely management are crucial. Since the first-line pharmacological interventions of modern medicine are expensive and associated with certain undesirable side effects, the homoeopathic system of medicine appears to be a safer and more economical alternative in such cases. Keeping this in view, …

Incidence Of Autoimmune Diseases In Children With Atopy Treated With Dupilumab, Stanislaw J Gabryszewski, Kathryn Hirabayashi, Morgan Botdorf, Mitchell Maltenfort, Christopher B Forrest, Theresa W Guilbert, Madeline Schutt, Hiroki Morizono, Gerardo Vazquez Garcia, Anna Cristina Garza-Mayers, Joseph Demetrius Hernandez, Sara Anvari, Suchitra Rao, Jonathan M Spergel

Faculty, Staff and Students Publications

Background: The type 2 inflammation-blocking agent dupilumab has gained traction as an effective treatment of multiple atopic diseases. New-onset autoimmune manifestations have been infrequently reported in dupilumab-treated atopic patients, primarily among adults. Autoimmune outcomes in atopic children on dupilumab are less clear.

Objective: We aimed to determine if dupilumab treatment of atopic children is associated with increased autoimmune or autoinflammatory disease diagnosis risk.

Methods: Using a multi-institutional electronic health record database composed of 10 PEDSnet academic health systems, we performed a retrospective cohort study of children aged 6-17 with atopy (ie, moderate-to-severe atopic dermatitis and/or persistent asthma, as defined by …

Net Benefit Of Surveillance Varies By Hepatocellular Carcinoma Risk In Patients With Cirrhosis, Akash Patel, Elena Gavrila, Sruthi Yekkaluri, Yujin Hoshida, Ruben Hernaez, Amit G Singal

Faculty, Staff and Students Publications

Background: The risk of hepatocellular carcinoma (HCC) and net benefit of surveillance may differ between patients with cirrhosis. We compared the benefits and harms of HCC surveillance across risk strata in patients with cirrhosis.

Methods: We leveraged a cohort of patients with cirrhosis from a pragmatic RCT of HCC surveillance outreach enrolled between March 2018 and April 2021. Patients were stratified into low-, intermediate-, and high-risk categories based on published thresholds for three validated clinical risk scores. We calculated HCC incidence rates and moderate-to-severe physical harms for each risk stratum.

Results: Of 2142 patients with cirrhosis followed for a median …

K2p Channels As Key Regulators Of Cardiovascular And Pulmonary Vascular Function, Hala Y Abdelnasser, Xinchun Pi, Lavannya M Pandit, Bradley K Mcconnell

Faculty, Staff and Students Publications

Two-pore domain potassium (K2P) channels are the most recently identified family of potassium channels. They are regarded as the largest group of background “leak” channels, encoded by 15 mammalian KCNK genes, and divided into six subfamilies (TWIK, TREK, TASK, TALK, THIK, and TRESK). These channels have a role in stabilizing the resting membrane potential. Their widespread presence in the heart and vasculature supports cellular homeostasis by regulating cardiac rhythm, vascular tone, and protection against ischemic stress. The TASK, TWIK, and TREK subfamilies are the most abundantly expressed K2P channel subfamilies in the cardiovascular system, and dysregulation of specific members has …

Mitochondrial Transfer And Induced Ros As A Therapeutic Strategy In Idh2-Mutant Chondrosarcoma, Vegas R. Bedder, Caleb Wyckoff, Chris Osgood, Gavin A. Vasquez, Michael Stacey

Knowledge and Creativity Expo

Chondrosarcoma (CS) are common bone cancers that produce cartilaginous tumors and are extremely refractive to chemo-and-radiation therapies, leaving very limited treatment options. They contain mutations in the isocitrate dehydrogenase genes, IDH1 or IDH2. Either IDH1 or IDH2 mutations are present in individual tumors, but not both. They both convert alphaketoglutarate (αKG) into the potent oncometabolite D-2-hydroxyglutarate (D2HG). D2HG can be transported from the tumors to cells of the tumor microenvironment (TME) where it can alter metabolic and epigenetic profiles in recipient cells. The process of α-KG to D2HG conversion occurs in the cytoplasm of IDH1 mutant cells, and in the …

Conserved Neutrophil Degranulation Transcripts In Hiv-Tb Coinfected Children Across East And Southern Africa, Eric Katagirya, Busisiwe Mlotshwa, Samuel Kyobe, Savannah Mwesigwa, Gaone Retshabile, Lesedi Williams, Marion Amujal, John Mukisa, Gerald Mboowa, David P Kateete, Misaki Wayengera, Sununguko Wata Mpoloka, Angella N Mirembe, Ishmael Kasvosve, Koketso Morapedi, Makhosazana Dlamini, Betty Nsangi, Grace P Kisitu, Adeodata R Kekitiinwa, Gabriel Anabwani, Moses L Joloba, Eddie Mujjwiga Wampande, Dithan Kiragga, Florence Anabwani-Richter, Chester W Brown, Graeme Mardon, Neil A Hanchard, Mogomotsi Matshaba, And For The Collaborative African Genomics Network (Cafgen)

Faculty, Staff and Students Publications

Background: HIV-tuberculosis (HIV-TB) coinfection poses a significant public health challenge among children in high-burden African regions. Most previous transcriptomic studies have concentrated on adults and non-African populations, primarily analyzing gene-level differential expression. This approach overlooks multi-isoform complexity and may obscure both inherent and pathogen-induced intragenic heterogeneity. This multi-center case-control study aimed to identify and characterize the transcript-level landscape of HIV-TB coinfection in children from different African regions.

Methods: We analyzed whole-blood RNA sequencing data from 97 children with and without tuberculosis from Uganda (East Africa) and from Botswana and Eswatini (Southern Africa). Reads were quality-controlled, and low-abundance transcripts filtered out. …

Molecular Characterization Of Humanized Apoe Mouse Models Reveals Source And Genotype Dependent Differences, Na Wang, Gefei Yu, Zhen Wang, Alla Alnobani, Suren Jeevaratnam, Xue Zhang, Meghan Mcreynolds, Yuzhou Chang, Fangfang Qi, William Tauer, Cassandra Rosenberg, Melissa Wren, Tadafumi C Ikezu, Yuka A Martens, Minghui Wang, Bin Zhang, Gregory W Carter, Michael Sasner, David M Holtzman, Junmin Peng, Long-Jun Wu, Takahisa Kanekiyo, Chia-Chen Liu, Guojun Bu

The Brown Foundation: Institute of Molecular Medicine

Background

Humanized APOE targeted-replacement (TR) mice are essential tools for studying apoE isoform effects in Alzheimer’s disease (AD) and other apoE-related disorders. Despite their widespread use, existing APOE mouse models, generated with different gene targeting strategies, have not been directly compared in terms of apoE isoform expression, lipid profiles, and transcriptomic signatures. Such differences could impact how we interpret APOE genotype-related outcomes, as well as related underlying molecular mechanisms.

Methods

We conducted a comprehensive molecular comparison of humanized APOE mouse models from three sources: Taconic Biosciences (TAC), the Cure Alzheimer’s Fund (CAF), and The Jackson Laboratory (JAX). We assessed apoE …

A Cross-Sectional Survey On Hpv Vaccination In A Houston Hiv Clinic, Shailee R Modi, Erika S Fanous, Avery N Sinnathamby, Laura O Van Buskirk, Jason L Holliday, J Brooks Jackson, Mary B Rysavy

Faculty, Staff and Student Publications

Background/Objectives: Human papillomavirus (HPV) is the most common sexually transmitted infection worldwide and causes cervical cancer in women. Patients with human immunodeficiency virus (HIV) are particularly susceptible to this virus. An effective vaccine against high-risk HPV genotypes is available. This study sought to evaluate barriers to HPV vaccination in HIV-positive female patients between the ages of 18 and 65 in a county clinic in Houston.

Methods: A cross-sectional survey was conducted in May-June 2025 with 131 patients at Thomas Street Health Center in Houston. The survey assessed patient demographics, attitudes toward and knowledge of HPV vaccination (at least one dose), …

Fecal Carbohydrate-Degrading Bacteria Are Associated With Reduced Incidence Of Lower Gastrointestinal Gvhd, Christopher Fan, Tomo Hayase, Chia-Chi Chang, Israel K Glover, Ivonne I Flores, Lauren K Mcdaniel, Miriam R Ortega, Christopher A Sanchez, Rawan K El-Himri, Alexandria N Brown, Jennifer L Karmouch, Mohamed A Jamal, Saira S Ahmed, Taylor M Halsey, Yimei Jin, Wen-Bin Tsai, Rishika Prasad, Altai Enkhbayar, Aqsa Mohammed, Maren Schmiester, Ashish Damania, Nadim J Ajami, Jennifer A Wargo, Christine B Peterson, Gabriela Rondon, Taha Al-Juhaishi, Amin M Alousi, Jeffrey J Molldrem, Richard E Champlin, Elizabeth J Shpall, Eric Martens, Cesar A Arias, Robert R Jenq, Eiko Hayase

Faculty, Staff and Student Publications

Lower gastrointestinal graft-versus-host disease (LGI-GVHD) carries morbidity and mortality for patients undergoing allogeneic hematopoietic stem cell transplantation (allo-HSCT), with critical contributions from the intestinal microbiome. In a retrospective cohort of metagenomic sequencing of stool from patients with allo-HSCT (N = 90), we found that a reduction in specific Parabacteroides and Bacteroides species around the time of engraftment contributes to LGI-GVHD risk. Given the known diverse carbohydrate-degrading functionality of these bacteria, we investigated gene abundances for carbohydrate-active enzymes (CAZymes) and found that Parabacteroides merdae, P distasonis, and Bacteroides ovatus abundances were significantly correlated with CAZymes in patients who did not develop …

Genome-Wide Crispr Screen Identifies A Cytokine-Enhancer Circuit Driving Hif-2Α Activation In Renal Cancer, Jun Fang, Jeremy M Simon, Tao Wang, Yunpeng Gao, Xianju Bi, Lianxin Hu, Chengheng Liao, Cheng Zhang, Yayoi Adachi, Jin Zhou, Hongyi Liu, Qian Liang, James A Nathan, Ram Mani, James Brugarolas, Qing Zhang

Faculty, Staff and Student Publications

Resistance to HIF-2α inhibitors such as Belzutifan underscores the need to better understand how HIF-2α is transcriptionally regulated in clear cell renal cell carcinoma (ccRCC). Here, we uncover a cytokine-driven enhancer mechanism that sustains HIF-2α expression through the JAK1-STAT3 signaling pathway. Using a genome-wide CRISPR screen in VHL-deficient ccRCC cells, we identified SOCS3 as a key negative regulator of HIF-2α. Mechanistically, loss of SOCS3 activates JAK1-STAT3 signaling, leading to the recruitment of STAT3 to distal enhancers upstream of EPAS1 that physically loop to its promoter to drive HIF-2α transcription. This cytokine-enhancer circuit was recapitulated in ccRCC patient samples and functionally …

Tulane Virus Protease As A Structural Surrogate For Inhibitor Screening Of Human Norovirus Proteases, Son Pham, Nikhil Sharma, Banumathi Sankaran, Jalen Nguyen, Mary K Estes, Joseph M Hyser, B V Venkataram Prasad

Faculty, Staff and Students Publications

Human norovirus (HuNoV) is a significant cause of gastroenteritis worldwide, affecting people of all age groups. There are currently no vaccines or drugs available, leaving susceptible populations vulnerable to severe or protracted illness. A HuNoV cultivation system is pivotal for screening norovirus antivirals. While the human intestinal enteroid cultivation system allows robust replication of multiple HuNoV strains, it presents technical and cost barriers. Tulane virus (TV), a surrogate for HuNoV, replicates well in monkey kidney cell lines and is closely related to norovirus in cellular biology. Here, we determined the structures of TV protease (TV-Pro) alone and in complex with …

Heterogeneity And Plasticity Of The Naive Cd4+ T Cell Compartment, Alia Sajani, Evelien Schaafsma, Walburga Croteau, Mohamed Eltanbouly, Elizabeth C Nowak, Chao Cheng, Christopher M Burns, Mary Jo Turk, Randolph J Noelle, J Louise Lines

Faculty, Staff and Students Publications

This study describes the transcriptional heterogeneity of murine and human naive CD4+ T cells as comprising multiple discrete clusters that impact CD4+ T cell fate and trajectories. Naive CD4+ T cells experiencing inflammatory environments exhibit an altered transcriptional state that biases their differentiation trajectories.

Efficacy And Safety Of Stem Cell-Based Interventions For Burn Wound Healing: A Systematic Review And Meta-Analysis Of Pre-Clinical And Early Clinical Evidence, Prayuth Poowaruttanawiwit, Patsanan Kulla, Naveeya Pakpoomkamonlert

The Thai Journal of Pharmaceutical Sciences

Background: Burn injuries remain a major therapeutic challenge, with conventional treatments often failing to achieve complete functional skin regeneration. Stem cell-based interventions, including mesenchymal stem cells (MSCs) and exosome derivatives, have demonstrated regenerative and immunomodulatory potential, yet their translation to clinical practice remains limited.
Objectives: To systematically evaluate the efficacy and safety of stem cell-based therapies for burn wound healing across pre-clinical and clinical studies.
Materials and Methods: Following Preferred Reporting Items for Systematic Reviews and Meta-Analyses 2020 guidelines, four databases (PubMed, Embase, Scopus, and Cochrane) were searched through April 2025. Eligible studies included randomized controlled trials and controlled pre-clinical …

Tour Of Old & Rare Books Collection, Kelsey Koym, Tara Sims

History of Medicine Seminar

No abstract provided.

Γδ T Cells At The Interface Of Innate And Adaptive Immunity In Cancer, Arnau Solé Casaramona, Martin F Bachmann, Eva Sevick-Muraca, Mona O Mohsen

The Brown Foundation: Institute of Molecular Medicine

γδ T cells are unconventional lymphocytes that bridge innate and adaptive immunity by combining recognition of stress-induced ligands independently of classical major histocompatibility complex molecules with the capacity to undergo clonal expansion and long-term adaptation. Their unusual ability to detect malignant transformation using semi-invariant T-cell receptors, butyrophilin recognition and natural killer-like receptors positions them as powerful effector cells in tumors that evade classical immune escape mechanisms. Furthermore, distinct γδ subsets have distinct phenotyping and specific tissue-residencies, which could be leveraged to modulate immunological responses. We evaluate engineered therapies and different experimental platforms for studying γδ T cell biology. We conclude …

Intouch Week Of March 23, 2026, New York Medical College

InTouch

• Match Day Marks a New Season of Growth for the Class of 2026
• NYMC Explores the Lasting Impact of Marie Curie at Women’s History Month Event
• Department of Public Health Introduces New Certificate Option
• NYMC Teams Shine at Inaugural RISE Case Competition
• New Vein-Harvesting Technique Could Reduce Bypass Graft Failure
• Spring Into Publishing: Meet the Experts
• Student Spotlight: Exploring Connections Between Alzheimer's Disease and Glaucoma

Antimicrobial Activity Of Sulbactam-Durlobactam Against Acinetobacter Baumannii-Calcoaceticus Complex Strains Causing Non-Respiratory And Non-Bloodstream Infections From The United States (2023–2025), Elizabeth Cyr, Jill Argotsinger, Eric T Beck, Robin R Chamberland, Andrew E Clark, Anne R Daniels, Rachael Liesman, Mark Fisher, Philip Gialanella, Jonathan Hand, Amanda T Harrington, Romney M Humphries, Holly Huse, Robert Hamilton-Seth, Julia D Hankins, Wesley D Kufel, Scott W Riddell, Meera Mehta, Ryan Demkowicz, A Brian Mochon, Hossein Salimnia, Ayesha Khan, Virginia M Pierce, Raghava Potula, Tsigereda Tekle, Patricia J Simner, Robert J Tibbetts, Christine Vu, Lilian M Abbo, Octavio Martinez, Rebekah E Dumm, Manohar B Mutnal, Timothy C Jenkins, Violeta Chávez, Paulette Pinargote, Jennifer Bowling, Erik Munson, Daniel V Zurawski, David P Nicolau, Tomefa E Asempa, On Behalf Of The Acinetobacter Baumannii Complex National Biorepository (Acnbio) Study Group

Faculty, Staff and Student Publications

Acinetobacter baumannii most often causes pneumonia in critically ill patients. However, A. baumannii is also an important cause of a broader range of infections, including skin/wound and urinary tract infections. This study aims to evaluate the in vitro activity of sulbactam-durlobactam and comparator antibiotics, including meropenem and cefiderocol against A. baumannii-calcoaceticus complex isolates from non-respiratory and non-bloodstream sources. Samples included 285 A. baumannii-calcoaceticus complex isolates enriched for carbapenem resistance collected across 17 states in the United States (January 2023–May 2025). Antimicrobial susceptibility tests were conducted by manual broth microdilution and interpreted according to Clinical and Laboratory Standards Institute (CLSI) and …

A Retrospective Analysis Of Taxane-Based Chemotherapy In Small Bowel Adenocarcinoma, Mir Lim, Nikhil Grandhi, Preksha Shah, Kanwal Raghav, Victoria Serpas, Maria Pia Morelli, Katrina Pedersen, Aparna Kalyan, Mohamed Salem, Ryan Huey, John Paul Shen, Huamin Wang, Hua Wang, Anjali Vinocha, Jane Thomas, Robert Wolff, Michael J Overman

Faculty, Staff and Student Publications

Background: Small bowel adenocarcinoma (SBA) is molecularly distinct from colorectal and gastric cancers, yet treatment typically parallels colorectal cancer. We evaluated the activity of taxane-based therapy in the largest SBA cohort to date.

Methods: We retrospectively reviewed SBA patients treated with taxane-based chemotherapy at MD Anderson Cancer Center from 1994-2024. Eligible patients had pathologic confirmation, received >1 treatment cycle, and had tumor response evaluation. Survival analyses were analyzed using Kaplan-Meier and Cox proportional hazard models.

Results: Seventy patients were identified. Median age was 57, and 59% were male. Primary sites were duodenum (44%), jejunum (34%), and Ileum (16%). Metastatic sites …

Precision Percutaneous Coronary Intervention, Travis M Wilson, Uzair Munaf, Nafhat Shaikh, Affan Rizwan, Riyan Siddiqui, Hafeez Ul Hassan Virk, Mahboob Alam, Umair Khalid, Muzamil Khawaja, Tanawat Attachaipanich, Larisa H Cavallari, Tania Ahuja, Michael G Nanna, Samin K Sharma, Lloyd W Klein, Gary S Mintz, Chayakrit Krittanawong

Faculty, Staff and Students Publications

Precision-based percutaneous coronary intervention (PCI) integrates contemporary strategies across the pre-, intra-, and post-procedural phases to improve outcomes and minimize complications. Emerging evidence underscores the value of these strategies in reducing adverse events and improving procedural efficiency. While artificial intelligence and pharmacogenomics hold long-term promise for enhancing personalization, their clinical utility in PCI remains in the early stages of development.

Protocol For Spatial Profiling Of Immune Cells In The Mouse Cornea And Conjunctiva Using Nanostring Geomx Dsp And Ncounterpro Platforms, Lois Kim, Karthikeyan Ramasamy, Ajay Sharma

Pharmacy Faculty Articles and Research

Quantification of immune cells and their activation status in a spatially specific manner in a healthy or diseased tissue is a valuable tool in immunology. Here, we present a protocol for the spatial profiling of immune cells in the mouse cornea and conjunctiva. We describe steps for immunostaining with photocleavable oligonucleotide-conjugated antibodies, selecting regions of interest (ROIs), and collecting UV-cleaved oligonucleotides using GeoMx DSP. We then detail procedures for hybridizing collected oligonucleotides, cartridge blotting using nCounter Pro Prep, data acquisition, and data analysis.

Therapeutic Plasma Exchange For Uncontrollable Bleeding After Platelet Inhibition With Ticagrelor: A Report Of 2 Cases, Amanda Herrmann, Brenda Mai, Yu Bai, Brian Castillo, Biswajit Kar, Kimberly Klein, Ismael A Salas De Armas, Eric Salazar, Hlaing Tint, Igor D Gregoric

Faculty, Staff and Student Publications

Case series

Patients: Male, 52-year-old Male, 66-year-old

Final Diagnosis: Uncontrolled bleeding following ticagrelor associated with cardiac surgery

Symptoms: Bleeding

Clinical Procedure: —

Specialty: Cardiology Critical Care Medicine Pathology

Objective: Unusual clinical course

Background

Acute coronary syndrome is the most common cause of death in the United States. Successful intervention often requires a multi-therapeutic approach, including percutaneous coronary intervention (PCI) and antiplatelet agents such as ticagrelor. However, the use of antiplatelet agents can cause life-threatening bleeding, particularly during emergency procedures. Therapeutic plasma exchange (TPE) is a procedure that selectively removes the patient’s plasma to eliminate harmful substances. Here, we present 2 …

Hybrid Diabetes Coaching Model: Integrating In-Person And Telemedicine Strategies To Improve Glycemic Outcomes, Sandis A. Mundackal

Student Scholarly Projects

Practice Problem: In patients with type 2 diabetes, poor glycemic control among adults remains a significant challenge in primary care settings, particularly within federally qualified health centers (FQHCs) that serve underserved populations. At the FQHC practice site, patients were managed using standard care with quarterly follow- up visits, without a structured hybrid coaching approach. This inconsistency contributed to a high number of patients with hemoglobin A1c (HgbA1c) levels ≥ 9%, placing them at increased risk for diabetes-related complications.

PICOT Question: In adults with poorly controlled type 2 diabetes (HgbA1c ≥ 9%) (P), does monthly hybrid coaching delivered through in-person and/or …

Health Effects Of Cadmium And Manganese Exposure On Luteinizing Hormone Levels: A Pilot Study Of Female Infertility, Shatha F. Alhous, Anees A. Al-Hamzawi, Murtadha Sh. Aswood

Al-Bahir

Female infertility occurs for many reasons, some unknown. Exposure to heavy metals is a risk factor that negatively impacts on female reproductive system. Therefore, this study aimed to evaluate the effect of cadmium Cd and manganese Mn on luteinizing hormone LH levels for females’ infertility. This study included a healthy group (n = 20), primary infertile females (n = 40), and secondary infertile females (n = 20) collected from Al-Zahraa hospital in Najaf center, Iraq. The Atomic Absorption Spectroscopy (AAS) was used to measure the cadmium and manganese concentrations and LH levels were measured by a Maglumi 800 from Snibe …

Plant-Based Dietary Patterns Are Associated With Slower Epigenetic Aging, Hyunju Kim, Christina A Castellani, Jiantao Ma, Alexis C Wood, Audrey Ting, Morgan E Grams, Bing Yu, Kelly Ruggles, James S Floyd, Dan E Arking, Casey M Rebholz

Faculty, Staff and Students Publications

Greater adherence to plant-based diets is associated with health benefits. Dietary intake can modify DNA methylation patterns, but it is unknown whether plant-based diets in a largely non-vegetarian population are associated with DNA methylation-based epigenetic aging measures. We examined the associations between 4 different types of plant-based diets indices (PDI) [overall PDI, provegetarian diet, healthy PDI, and unhealthy PDI] and epigenetic aging. We used data from the Atherosclerosis Risk in Communities (ARIC) Study (N=2,810) and National Health and Nutrition Examination Survey (NHANES, N=2,056). PDIs negatively scored higher intake of animal products and positively scored higher intake of all or selected …

Multimodality Assessment Of A Culprit Lad Myocardial Bridge In A Patient With Congenital Heart Disease, Som Singh, Goutham Ravipati, Harnoor Mann, Santosh Uppu, Kiran Mallula, Danny Ramzy, Igor D Gregoric, Biswajit Kar, Sukhdeep Singh Basra

Faculty, Staff and Student Publications

Background: Myocardial bridging is a congenital coronary anomaly in which a segment of an epicardial artery is tunneled within the myocardium. Although many cases remain asymptomatic, hemodynamically significant bridges may require surgical intervention.

Case summary: A 57-year-old man with a history of an unrepaired ventricular septal defect presented with recurrent chest pain. Initial imaging identified a 4.7-cm myocardial bridge in the left anterior descending artery. Functional testing with fractional flow reserve, instantaneous wave-free ratio, and diastolic hyperemia-free ratio confirmed hemodynamic significance. Optical coherence tomography was performed to further visualize the segment. The patient underwent successful surgical unroofing, resulting in complete …

Integration Of Cross-Species Multi-Omics With In Vivo Experimental Validation Identifies Parkinson’S Disease Therapeutic Targets And Novel Risk Factors Within Endolysosomal Pathway Subnetworks, Justin Moore, Leo Rao, Sara Garcia-Bellido, Fangfei Guo, Jorge Botas, Juan Botas

Duncan NRI Faculty and Staff Publications

Parkinson's disease (PD), the most common neurodegenerative movement disorder, imposes a growing healthcare and socioeconomic burden worldwide. A defining hallmark of PD is the accumulation of α-synuclein (αSyn) within intracellular inclusions such as Lewy bodies and Lewy neurites. Genomic studies have identified numerous PD risk factors within the endolysosomal pathway (ELP), an essential cellular system for protein and membrane recycling. Concordantly, recurrent transcriptomic and proteomic alterations in ELP components implicate broad ELP dysfunction as a causal contributor to PD and suggest that additional, uncharacterized ELP genes may cooperate in polygenic disease mechanisms. A promising but underexplored therapeutic concept is that …

Immunotherapy Of Tsa-1.C4 Or In Combination With Bnz Confers Protection Against Trypanosoma Cruzi Infection With A Distinct Cytokine Response, Landy Magaly Pech-Pisté, Victor Dzul-Huchim, Christian Florian Teh-Poot, Fabian Gusovsky, Kathryn Jones, Peter Hotez, Liliana Estefanía Villanueva-Lizama, Maria Elena Bottazzi, Jaime Ortega-Lopez, Julio Vladimir Cruz-Chan

Faculty, Staff and Students Publications

Chagas disease is a poverty-related neglected tropical disease caused by the protozoan Trypanosoma cruzi affecting approximately 6.3 million people, predominantly in the Americas. Approximately 30% of T. cruzi infections progress to chronic cardiomyopathy and 10% of these cases end in death from cardiac failure. The first-line drug Benznidazole (BNZ) require a prolonged treatment regimen and can be highly toxic. Here, we evaluate a therapeutic vaccine in T. cruzi-infected mice, based on the recombinant Trypomastigote Surface Antigen 1 (TSA-1.C4) protein and the emulsified adjuvant E6020, and in combination with a suboptimal dose of BNZ. We observed a reduced burden parasite in …

Self-Clustering Of Three Cbx2 Molecules Drives Prc2 To Promote Facultative Heterochromatinization Of Polycomb Target Genes, Steven Ingersoll, Abby Trouth, J Carlos Angel, Xinlong Luo, Axel Espinoza, Joey Wen, Chengjie Zhu, Joseph Tucker, Kalkidan Astatike, Christopher J Phiel, Hatim Sabaawy, Tatiana G Kutateladze, Tao P Wu, Tingting Yao, Chao Lu, Srinivas Ramachandran, Xiaojun Ren

Faculty, Staff and Students Publications

Phase separation is increasingly recognized in facultative heterochromatinization of Polycomb target genes; however, the mechanisms underlying this process remain obscure. Using single-molecule imaging and tracking, we show that individual condensates in mouse embryonic stem cells (mESCs) contain approximately 3 CBX2 molecules and numerous Polycomb repressive complex (PRC)1 and PRC2 subunits and indicate that the composition and dynamics of condensates are developmentally regulated. We reveal that CBX2 clusters PRC2 and controls the spatial distribution of both PRC2 and H3K27me3. Using genomic approaches, we demonstrate that CBX2 binds to condensate initiation sites, which are enriched for PRC2 nucleation sites. CBX2 deletion causes …

Immunoregulatory Effects Of Choerospondias Axillaris (Roxb.) B.L.Burtt & A.W.Hill Fruit Extract In Mice With Insights On In Vitro Mechanism, Ravi Gautam, Anju Maharjan, Jaehee Lee, Sujeong Yang, Jihun Jo, Manju Acharya, Daeun Lee, Narayan Prasad Ghimire, Saroj Lamichhane, Byungsun Min, Changyul Kim, Hyoungah Kim, Yong Heo

Department of Microbiology and Immunology Faculty Papers

BACKGROUND: Lapsi (Choerospondias axillaris), a plant native to Nepal, has been traditionally used in Asian countries to treat cardiovascular conditions. However, its effects on immune regulatory function remain largely unexplored. This study aimed to in vivo evaluate the immunoregulatory properties of Lapsi fruit extract in mice on immunotoxic responses with analysis on in vitro mechanism for immune suppression, oxidative stress, and inflammatory response. Male Balb/c mice were intragastrically administered various doses of the extract for 21 days. In some mice, immune suppression was induced with cyclophosphamide, and subsequent immune recovery was assessed. In addition, RAW264.7 cells and THP-1-derived macrophages were …