Digestive System Diseases Commons^™

"Qt Okay, Bowel Not Okay"- Dofetilide Masking An Evolving Small-Bowel Obstruction, Tejaswini Yeshala, Pankti Shah, Syed Ali Abidi, Archana Machavarapu

MidAmerica Division GME Healthcare Symposium 2026

No abstract provided.

Esophageal Stents: How High Can You Go? A Traumatic Injury Treated With High Esophageal Stent Placement, John W. Surbeck, Anthony P. Melillo, James S. Scott

MidAmerica Division GME Healthcare Symposium 2026

No abstract provided.

A Histopathological Mystery: A Rare Atypical Feature Of Microscopic Colitis, Mohammad Mahfouz, Pratyush Kumar, Kumar Abhishek, Archana Machavarapu

MidAmerica Division GME Healthcare Symposium 2026

No abstract provided.

Case Report: Spontaneous Gastric Intramural Hematoma With Intramural Dissection, Pedro De Castro, Rachel Steffes, John Surbeck, Anthony Melillo, Vince Narciso, Mohsin Soliman

MidAmerica Division GME Healthcare Symposium 2026

No abstract provided.

Turning Yellow On Rhythm Control: Dofetilide And The Unexpected Cholestatic Storm, Tejaswi Vadde, Mohammad Mahfouz, Prithvi Basu Roy, Subuhee Ahmed, Archana Machavarapu, Chelsea Curry

MidAmerica Division GME Healthcare Symposium 2026

No abstract provided.

Post-Metabolites Of Two Commensal Bacteria Suppress Dna Damage In An Experimental Model Of Acid Reflux Disease, Maanya Pradeep

Honors Undergraduate Theses

Chronic heartburn or gastroesophageal reflux disease (GERD) affects approximately 25% of the US population [1]. Repeated bile acid exposure from the regurgitation of stomach contents leads to the production of reactive oxygen species (ROS), which can cause oxidative DNA damage and promote genomic instability [2]. Barrett’s esophagus (BE), which can develop as a response to chronic bile acid exposure, increases the risk of esophageal adenocarcinoma (EAC) by 30% to 125% [1].

There are more than 18,000 new cases of esophageal cancer in the United States each year, and while its incidence is relatively low compared to other cancers, its mortality …

Enteral Nutrition Guidelines Improve Critically Ill Patients’ Outcomes: A Quasiexperimental Study, Marwa Abdo, Sara Elsayed Hegazy

Nursing

Background: Optimal nutritional support is a fundamental element of treatment for critically ill patients. Adherence to evidence-based enteral nutrition guidelines is essential to promote patient care and prevent potential complications. Objectives: To assess the effectiveness of enteral nutrition guidelines in improving critically ill patients’ outcomes. Method: A quasiexperimental study evaluated 68 critically ill patients divided into 2 groups. The intervention group received their nutrition based on the evidence-based enteral nutrition guidelines, while the control group received their nutrition based on the unit’s routine care. The study was conducted in the surgical intensive care units of Mansoura Emergency Hospital in Egypt. …

Investigating The Role Of Traditional Chinese Herbal Medicine For Cancer Symptom Management In Older Adults: A Rapid Review, Isabelle C. Karshner

Honors Undergraduate Theses

Background: Patients with cancer often experience symptoms related to disease, complications, and treatment. One potential method of alleviating these symptoms is traditional Chinese herbal medications (TCHM). This rapid review explores the role of traditional Chinese herbal medications in treating cancer-related symptoms in older adults.

Purpose: The purpose of this rapid review is to gain and provide a better understanding of the effects of TCHM on cancer-symptom management in the older adult population. This review explores the association between TCHM and effects on cancer symptoms in older adults, including interactions, toxicity, and signs/symptoms of TCHM use that may be useful information …

Establishment Of An In Vitro Dss-Induced Epithelial Injury Model To Investigate Il-6 Signaling And Microbial Metabolite Mediated Barrier Recovery, Srijal Kunwar

Graduate Studies Theses and Dissertations 2026

Dextran sodium sulphate (DSS) is widely used in vivo to induce epithelial injury; however, the molecular effects of DSS on intestinal epithelial cells, that investigate inflammatory and metabolic repair mechanisms remain unclear. Here, we establish an in vitro DSS-induced epithelial damage model using differentiated Caco-2 cell monolayer. Exposure to 2.5%(w/v) DSS for 24 hours resulted in significant upregulation of pore forming protein Claudin-2(2.677-fold) and oxidative marker, NOX-1(1.866-fold), accompanied by increased ROS production confirmed via DHE staining. Increased epithelial permeability was observed by TEER analysis, without significant cytotoxicity. Surprisingly, ELISA analysis revealed significant downregulation of IL-6 (p-value …

Cologuard, Call To Action! A Structured Outreach Intervention For Patients With Unreturned Cologuard Kits, Crystal Bharat, Sophia Zia, Harsh Bhatt, Abd Almasih Barbar Askar, Kulwinder Bhatnura, Dhruv Patel, Dennis Besong

South Atlantic Division GME Research Days 2026

No abstract provided.

Robotic Assisted Duodenojejunostomy In The Treatment Of Adult Annular Pancreas, Anthony Sciuva, Denise Vera Nemeth, Riley Burgon, Noaman Ali

South Atlantic Division GME Research Days 2026

No abstract provided.

Large Mesenteric Cyst Mimicking Dyspepsia In A Young Adult Female, Arjavon Talebzadeh, Hugo Barrera

South Atlantic Division GME Research Days 2026

No abstract provided.

The Great Mimicker: Intrathecal Opioid-Induced Esophageal Dysfunction, Abhishek Desai, Lisa Persaud, Desiree Aird

South Atlantic Division GME Research Days 2026

No abstract provided.

Emergency Percutaneous Needle Decompression Of Tension Pneumoperitoneum: A Case Report, Lauren Kirk, Jonathan Leggett, Jay Minter, Rachel Thompson, Dalton Drumm, Luke Lish, Edward Grove

South Atlantic Division GME Research Days 2026

No abstract provided.

Call Surgery First: Impact Of A Decision Aid Tool For Common Bile Duct (Cbd) Stones, Eleah Porter, Matthew Daniel, Zachery Hensel, Saptarshi Biswas, Andrew Pearson, Wesley Vosburg, B Fernando Santos

South Atlantic Division GME Research Days 2026

No abstract provided.

Trapped Beyond The Wall: Gastric Outlet Obstruction From A Ventral Hernia, Complicated By Ischemia And Hemorrhage, Carolyn Dudko, Saptarshi Biswas

South Atlantic Division GME Research Days 2026

No abstract provided.

An Uncommon Cause Of Dyspnea And Peripheral Edema: A Giant Pleural Solitary Fibrous Tumor In A Young Adult, Reggie Skains Iii, Mikayla Kidd, Brooke Escoe, Vishal Shah

South Atlantic Division GME Research Days 2026

No abstract provided.

Gross Findings With Point-Of-Care Ultrasound In Median Arcuate Ligament Syndrome: A Case Report, Justin Stanziola, Yelena Pecheny, Casey Wilson

South Atlantic Division GME Research Days 2026

No abstract provided.

A Colonic Metastasis Of Breast Cancer Discovered During Routine Surveillance Colonoscopy: A Rare Case Report, Minh Nguyen, Brenden Pearce, Jayden Navarro, Brooke Escoe, Kathleen Raynor

South Atlantic Division GME Research Days 2026

No abstract provided.

Persistent Racial And Sex-Based Disparities In Radiation Receipt And Survival Among Patients With Anal Cancer, Yashaswi Koguru, Austin Mccrea, Stephen Meyer

South Atlantic Division GME Research Days 2026

No abstract provided.

Rare Case Of Spontaneous Hepatocellular Carcinoma Regression, Anna Wiggins, Eleanora Stark, Cooper Alden Josephs

South Atlantic Division GME Research Days 2026

No abstract provided.

Comparing Naloxegol And Alvimopan In Reducing Rates Of Post-Op Ileus In Colorectal Patients, Madison Harger, Nicholas Hrdlicka, Elizabeth Mckeown

South Atlantic Division GME Research Days 2026

No abstract provided.

Gastroparesis – An Often-Overlooked Sign Of Multiple Sclerosis, Breveenn Kukan, Kaylee Brown, Minh Chung, Steven Veselsky, Joshua Ferrell

South Atlantic Division GME Research Day 2025

No abstract provided.

Upadacitinib For Recalcitrant Extraintestinal Crohn Disease, Avery H. Seward, Jeffrey P. Callen

Department of Medicine Faculty Publications

[Introduction] Crohn disease is a chronic inflammatory bowel disease that affects the gastrointestinal tract from the mouth to the anus. Extra-intestinal manifestations of Crohn disease are common, with the skin being the most commonly involved site.¹ Cutaneous manifestations of Crohn include lesions that directly extend from the bowel to the skin, whereas extraintestinal Crohn disease involves sites that do not directly extend from the bowel.¹ Extraintestinal Crohn disease is often resistant to treatments and often does not parallel the activity of the bowel disease.¹ There have only been 3 documented cases of extraintestinal Crohn disease responding to upadacitinib.²,³ We describe …

A Blood-Based Test For Colorectal Cancer Screening, Joshua Cullison

HCA Healthcare Journal of Medicine

Within the United States (US), colorectal cancer (CRC) remains the fourth most common malignancy and is responsible for over 50 000 deaths annually, second only to lung cancer in cancer mortality. Despite increased public awareness and increasing screening rates, the US remains far below the 80% screening mark set by the National Colorectal Cancer Roundtable at 59%. The addition of non-invasive blood-based tests for CRC screening could potentially increase screening rates and lower CRC deaths.

I performed a PubMed search using the search term “blood-based colorectal cancer screening.” I was particularly interested in articles that looked at Shield, which is …

The Top Twenty-Five Most Influential Articles In Surgery For Colorectal Cancer, Dana Poloni, Andrew Anklowitz, Fred Kobylarz, Christina Monaco Poloni, Ankit Dhiman, Pamela Burgess, Andrew Schlussel

HCA Healthcare Journal of Medicine

Background

This article provides surgical trainees with a ranked list of the foundational literature that guides the contemporary surgical management of colorectal cancer and shows the evolution of surgical techniques in the field.

Methods

We assessed the surgical literature using the Web of Science and other ranking systems to create a ranked list of published articles on colorectal cancer surgery.

Results

We compiled a ranked list of the top 25 articles in the surgical management of colorectal cancer, based on the citation density score (mean number of citations per year) and the individual author H-index. The mean density score of …

Application Of Flexible Endoscopy For Gastrointestinal Foreign Body Removal In A Leopard Gecko (Eublepharis Macularius), Jang-Hee Han, Seung Yoon Ahn, Do Na Lee, Seong Chan Yeon

The Thai Journal of Veterinary Medicine

A male captive-bred leopard gecko (Eublepharis macularius) presented with a history of inadvertent ingestion of a rubber tip from forceps during feeding. The foreign body was impalpable on physical examination, while radiographic evaluation confirmed its presence in the stomach. Considering the procedural risks associated with invasive surgical interventions, endoscopic retrieval under general anesthesia was pursued. An initial attempt using a 2.8 mm superfine flexible endoscope with 0.8 mm forceps was unsuccessful due to insufficient stability, which hindered effective navigation to the foreign body. In contrast, a second attempt using a larger 9.2 mm flexible endoscope with 2.3 mm …

Hepatocyte-Specific Lrp1 Silencing Exacerbates Brain Amyloidosis Without Compensatory Ldl Receptor Family Involvement, Brian Carson, Josephine Chu, Devaraj V. Chandrashekar, Jerome Garcia, Rachita K. Sumbria, Derick Han

Pharmacy Faculty Articles and Research

Background

LDL receptor related protein 1 (LRP1) is a major hepatic receptor involved in lipoprotein metabolism, protease degradation, transmembrane receptor modulation, and clearance of excess protein, such as Aβ. Decreased expression of LRP1 due to liver injury can impair receptor-mediated clearance, increasing Aβ availability in the periphery. We investigated the effects of hepato-specific silencing of LRP1 on Aβ deposition in the brain. Additionally, other LDL family members (LRP5, LRP6, and LDLR) that may participate in Aβ clearance were monitored in the liver to ensure non-compensatory effects of LRP1 silencing.

Method

4-month-old male double transgenic (APP/PS1) AD mice were injected with …

The Mitochondria Is The Source Of Hepatic Amyloid Precursor Protein And Peripheral Amyloid Beta: Implications Of Alcohol-Induced Liver Steatosis In Alzheimer's Disease, Josephine Chu, Ross A. Steinberg, Brian Carson, Devaraj Venkatapura Chandrashekar, Rachita K. Sumbria, Derick Han

Pharmacy Faculty Articles and Research

Background

Alcohol-induced liver injury occurs in the pericentral region of the liver and can induce mitochondrial remodeling and exacerbate Alzheimer's Disease (AD) progression. Subpopulations of mitochondria: general mitochondria (GM), peridroplet mitochondria (PDM) and endoplasmic reticulum(ER)-bound mitochondria (ERM) maintain cellular homeostasis via energy synthesis, lipid homeostasis, and regulation of intracellular calcium. Hepatic amyloid precursor protein (APP) is a source of peripheral amyloid beta (aB) and affects AD pathology in the brain. Understanding the localization and expression of hepatic APP in mitochondrial subpopulations are critical to understanding aB metabolism and may play a role in identifying a potential mechanism for metabolic dysfunction. …

A Tissue Renewal-Based Mechanism Drives Colon Tumorigenesis, Ryan M. Boman, Gilberto Schleiniger, Christopher Raymond, Juan P. Palazzo, Anne Shehab, Bruce M. Boman

Department of Pathology, Anatomy, and Cell Biology Faculty Papers

Our Goal is to identify how colorectal cancer (CRC) arises in the single-layered cell epithelium (simple columnar epithelium) that lines the luminal surface of the large intestine. Background: We recently reported that the dynamic organization of cells in colonic epithelium is encoded by five biological rules and conjectured that colon tumorigenesis involves an autocatalytic tissue renewal reaction. Introduction Our objective was to define how altered crypt turnover explains tissue disorganization that leads to adenoma morphogenesis and CRC. Hypothesis: Changes in rate of tissue renewal-based cell polymerization leads to epithelial expansion and tissue disorganization during adenoma histogenesis. Methods: Accordingly, we created …