Digestive System Diseases Commons^™

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 …

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 …

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 …

Investigating The Use Of Indole Compounds As Potential Therapeutics For The Treatment Of Necrotizing Enterocolitis, Arlo Colvard, Kyle Brawner

Student Scholar Symposium

Necrotizing enterocolitis (NEC) is a gastrointestinal inflammatory disease that primarily affects premature infants. In NEC, bacterial factors are thought to elicit an excessive immune system response.This robust inflammatory response leads to excessive apoptosis of the epithelial cells comprising the barrier between the lumen of the gastrointestinal tract and the underlying tissue allowing for bacterial invasion of the underlying tissue, leading to ischemia, necrosis, and potentially sepsis and death. Activation of the aryl hydrocarbon receptor (AhR), an immune system modulator, has been shown to be preventative against the pathogenesis of NEC in a murine model. However, no research has been conducted …

Effect Of Implementing Safety Nursing Measures For Maintaining Fluid And Electrolyte Balance Among Critically Ill Patients With Acute Pancreatitis, Marwa Abdo

Nursing

Acute pancreatitis is a severe inflammatory condition that affects the pancreas and causes multiple organ failure. High rates of morbidity and mortality are caused by acute pancreatitis. Early fluid resuscitation, within the first 48 hrs., remains the hallmark for acute pancreatitis management. It lowers the incidence of pancreatic necrosis. Therefore, the foundation of treating acute pancreatitis in its early stages is safe fluid resuscitation. Aim: This study aims to evaluate the effect of implementing safety nursing measures for maintaining fluid and electrolyte balance among patients. Study design: A quasi-experimental research design was utilized in this study. Setting: This study was …

Endoscopic Retrograde Cholangiopancreatography And Primary Sclerosing Cholangitis: A Retrospective Study Of A High-Volume Program, Kristel Leung, Michael Youssef, Yasi Xiao, Catherine Streutker, Aliya Gulamhusein, Bettina Hansen, Natalia Calo, Gary May, Jeffrey Mosko, Gideon Hirschfield

Division of Gastroenterology and Hepatology Faculty Papers

BACKGROUND: Endoscopic retrograde cholangiopancreatography (ERCP) is valuable in management of primary sclerosing cholangitis (PSC). Herein, we characterize individuals with PSC who underwent ERCP on-demand at a high-volume quaternary centre, with evaluation of pathology results and short-term postprocedural outcomes.

METHODS: This retrospective cohort study evaluated patients with PSC who underwent ERCP at St Michael's Hospital between April 2011 and July 2021. Chart review was conducted to collect clinical, procedural, and pathology data, and reported post-ERCP complications within 90 days. Logistic regression analyses were conducted to evaluate factors associated with post-ERCP complications and placement of a biliary stent.

RESULTS: One hundred and …

Gender Differences In Healthy Eating Index As Informed By The Awareness Of Diagnosis Of Metabolic Dysfunction-Associated Steatotic Liver Disease, Wei Ting Lin, Madeline Novack, Suthat Liangpunsakul, Chiung Kuei Huang, Hui Yi Lin, Po Hung Chen, Tung Sung Tseng, Peng Sheng Ting

School of Public Health Faculty Publications

Background/Objectives: Dietary quality is a driver of metabolic dysfunction-associated steatotic liver disease (MASLD). Men and women often have different levels of adherence to medical advice, but the effect of gender on adherence to dietary advice as a function of awareness of MASLD is understudied. We aim to investigate the differences in diet quality between men and women who are aware of their diagnosis of MASLD compared to their undiagnosed counterparts. Methods: We utilized the National Health and Nutrition Examination Survey 2017–2020 to identify a nationally representative sample of subjects with MASLD, 127 of whom reported a diagnosis of MASLD (diagnosed …