Digestive System Diseases Commons^™

Locoregional Therapy Pressure-Enabled Drug Delivery For Liver Cancers, Thomas Eggleston, Bassem Fayek, Jacqueline Kowalke, Mina Makary

Student Papers, Posters & Projects

Hepatic malignancies account for a substantial portion of global cancer mortality, with hepatocellular carcinoma (HCC), intrahepatic cholangiocarcinoma (IHC), and metastatic liver disease representing the most common diagnoses. While surgical resection and liver transplantation remain curative options for eligible patients, most patients are diagnosed at stages unsuitable for surgery. This has shifted medical management towards locoregional therapies (LRTs) which are often catheter-directed. Of these interventions, the use of conventional end-hole catheters for therapeutic infusion has been a mainstay of treatment, but this method is constrained by retrograde particle escape and elevated tumoral interstitial fluid pressure. Together, these factors limit drug penetration …

Biotic Therapies For Irritable Bowel Syndrome: Current Interventions, Gina Wodarczyk, Maria Winte, Diana Mastellone, Termen Singh, Joshua Desipio, Sangita Phadtare

Division of Gastroenterology and Hepatology Faculty Papers

Irritable bowel syndrome (IBS) is a common functional gastrointestinal disorder characterized by recurrent abdominal pain and changes in bowel habits without measurable disease processes. Recent research emphasizes the gut-brain-microbiome (GBM) axis and explores how microbiota influence gastrointestinal and central nervous system functions. Here, we first discuss a brief overview of various treatment approaches for IBS, focusing on interventions such as probiotics, prebiotics, or synbiotics that target the GBM axis in adults with IBS. Relevant trials discussed the use of probiotics, prebiotics, or synbiotics.

Specific Carbohydrate Diet Versus Mediterranean Diet In Adult Patients With Mild To Moderate Ulcerative Colitis: A Randomized Controlled-Feeding Trial, Albert Sheng-Yin Chen, Long Nguyen, Brianna Gray, Katherine Williams, Jenny Gurung, Lauren Canha, Jessica Mcgoldrick, Jane Hubbard, Hamed Khalili

Student Papers, Posters & Projects

Background and aims: This pilot randomized controlled-feeding trial compared the effect of Specific Carbohydrate Diet (SCD) and Mediterranean diet (MeD) in mild to moderate ulcerative colitis (UC).

Methods: Seventeen adults were randomized to a 6-week SCD (n = 8) or MeD (n = 9) intervention. Primary outcome was change in partial Mayo Clinic score (pMCS).

Results: The study was discontinued early due to significant dropout (n = 9, 52.9%). There was no significant between-group differences observed for pMCS change (SCD, -0.8; MeD, -1.3; p = 0.499) or secondary outcomes. Exploratory metagenomic analysis revealed enrichment of Parasutterella excrementihominis …

Adventitial Macrophage Accumulation Impairs Perivascular Nerve Function In Mesenteric Arteries With Inflammatory Bowel Disease, Elizabeth A. Grunz, Benjamin W. Jones, Olubodun Michael Lateef, Sidharth Sen, Katie Wilkinson, Trupti Joshi, Erika M. Boerman

Biomedical Sciences

Introduction: Inflammatory bowel disease involves aberrant immune responses and is associated with both cardiovascular disease risk and altered intestinal blood flow. However, little is known about how inflammatory bowel disease affects regulation of perivascular nerves that mediate blood flow. Previous work found perivascular nerve function is impaired in mesenteric arteries with Inflammatory bowel disease. The purpose of this study was to determine the mechanism of impaired perivascular nerve function.

Methods: RNA sequencing was performed on mesenteric arteries from IL10−/− mice treated with H. hepaticus to induce disease (inflammatory bowel disease) or left non-gavaged (Control). For all other studies, Control and …

Limited English Proficiency, Acculturative Stress, And Quality Of Life Among Korean American Patients With Chronic Hepatitis B, Hee-Soon Juon, Gilbert C. Gee, Julia G. Katcher, Daniel Yang, Katherine Smith, Ann C. Klassen

Department of Medical Oncology Faculty Papers

BACKGROUND: Chronic hepatitis B (CHB) is one of the most widespread liver diseases in the world and disproportionately affects Asian Americans, who are further impacted by the lower quality of life imposed by the infection. Limited English proficiency (LEP) and acculturative stress play an important role in the study of patients with CHB, but the interrelationships of LEP, acculturative stress, and health outcomes are not well studied in this population. This study aims to explore how acculturative stress mediates the relationship between LEP and health outcomes among Korean American patients with CHB.

METHODS: A total of 365 CHB patients completed …

Pediatric Inflammatory Bowel Disease Tissue Classification From Pathology Slide Images: Detecting Phenotypes Using Computer Vision, Chloe Martin-King, Ali Nael, Louis Ehwerhemuepha, Blake Calvo, Quinn Gates, Jamie Janchoi, Elisa Ornelas, Melissa Perez, Andrea Venderby, John Miklavcic, Peter Chang, Aaron Sassoon, Brian Rubio, Ghislaine Barrigan, Kenneth Grant

Food Science Faculty Articles and Research

Background and Aims

Methods

Results …

Post-Traumatic Rupture Of Primary Solid Pseudopapillary Epithelial Neoplasm (Spen) Of The Pancreas In A Male Adolescent: A Case Report, Paulo Castro, Heather Hartman, Yashasvi Shukla, Michael Moore, Dennis Drehner, Harish Lavu

Department of Surgery Faculty Papers

Introduction Solid pseudopapillary epithelial neoplasm (SPEN) is a rare pancreatic tumor that typically presents in adult women and is usually asymptomatic. Case presentation A 12-year-old male presented to the emergency department with worsening abdominal pain one day after suffering mild abdominal trauma during a soccer match. Physical exam showed diffuse abdominal tenderness and guarding. CT abdomen with IV contrast showed a heterogeneous, round structure adjacent to the pancreatic tail with mass effect upon the spleen. MRI abdomen revealed a “claw sign” of pancreatic tissue surrounding the structure, suggesting a an underlying pancreatic mass with capsular rupture measuring 8.3 x 8.1 …

The Role Of Extracellular Vesicles As Diagnostic Tools In Gut-Brain Axis Disorders, Patricia Marçal Da Costa, Paulo Iury Gomes Nunes, Gabriella Cunha Vieira Ciurleo, José Wagner Leonel Tavares Junior, Pedro Braga Neto, Ludmila Belayev, Reinaldo Barreto Oriá

School of Graduate Studies Faculty Publications

The gut–brain axis represents a dynamic two-way signaling network whose dysregulation has been implicated in a wide range of neurogastrointestinal disorders. In this context, extracellular vesicles (EVs) have emerged as critical mediators of intercellular signaling and as promising non-invasive biomarkers. Derived from host and microbial cells, EVs carry bioactive cargo—including proteins, lipids, nucleic acids, and metabolites—that reflect the physiological or pathological state of their cells of origin. Their ability to cross biological barriers, such as the blood–brain barrier, underscores their potential for diagnosing and monitoring gut–brain axis dysfunctions. In this mini-review, we integrate microbial and brain-derived EVs within the framework …

Antagonistic Effects Of Glucagon And Insulin On 5-Fluorouracil Efficacy In Colorectal Cancer, Gabriel M. Randolph, Andrea Florian

SPARK Symposium Presentations

Prior research on the combined effects of insulin and glucagon with low-dose chemotherapy in cancer treatment has yielded contradictory conclusions. Insulin potentiation therapy (IPT), a longstanding but understudied approach, is broadly claimed to enhance chemotherapeutic efficacy; however, it has also been characterized as pseudoscience lacking physiological merit. Adding further complexity, glucagon, insulin's antagonist hormone, has been shown to produce anti-cancer effects when combined with chemotherapeutic agents. The present study aims to observe the individual effects of both hormones on colorectal cancer cells in combination with 5-Fluorouracil (5-FU), to clarify their respective roles in combination therapy. Through the modulation of both …

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. …

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 …

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 …

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 …

Epidemiology Of Metabolic Syndrome In Patients With Inflammatory Bowel Disease: A Population-Level Cohort Study From The United States, Aakash Desai, Himsikhar Khataniar, Jana G. Hashash, Priya Sehgal, Francis A. Farraye, Gursimran S. Kochhar

Division of Gastroenterology and Hepatology Faculty Papers

BACKGROUND: Epidemiological data on metabolic syndrome (MetS) in patients with inflammatory bowel disease (IBD) are limited.

METHODS: A retrospective cohort study was conducted using the United States (US) Collaborative Network (TriNetX) to obtain data for patients with IBD between 2010 and 2023. The primary aim of the study was to estimate the prevalence of MetS in ulcerative colitis (UC) and Crohn's disease (CD). Prevalence was further characterized by age, sex, race, disease location, IBD medications, history of surgery, and IBD phenotype.

RESULTS: Among 100,890 patients with IBD, metabolic syndrome (MetS) affected 34.4% overall (UC 32.4%, CD 34.3%). Prevalence rose sharply …

Acute Gastropericardial Fistula With Cardiac Tamponade And Septic Pericarditis Due To Helicobacter Pylori–Induced Gastric Ulcer Perforation, Stephen J. Bordes, Christopher D. Oubre, Preethi H. Kanumuri, Nicholas Leblanc, Richard Lewis, Thomas Marsden, Terry Stelly

School of Medicine Faculty Publications

No abstract provided.

Aberrant Expression Of A Disintegrin And Metalloproteinase With Thrombospondin Motifs 13 (Adamts13) In Pancreatic Cancer Leads To Dichotomic Functions, Stephanie Allmang, Hagen R. Witzel, Anne Hausen, Simone Marquard, Christoph Eckert, Nicole Marnet, Nina Hörner, Philipp Mayer, Stefan Heinrich, Hien Dang, Wilfried Roth, Matthias M. Gaida

Department of Surgery Faculty Papers

Pancreatic ductal adenocarcinoma (PDAC) is one of the most aggressive cancers characterized by highly invasive growth into the surrounding peripancreatic fat tissue, where tumor cells can directly interact with adipocytes. Due to poor response to the currently available (radio)chemotherapies, there is an urgent need for advanced therapy concepts. The present study shows that ADAMTS13 (a disintegrin and metalloproteinase with thrombospondin motifs 13), a key factor in blood coagulation, is significantly overexpressed in human PDAC. Immunohistochemical analysis revealed that ADAMTS13 expression is associated with prolonged survival and negatively correlated with vascular density. In vitro and in vivo experiments demonstrate its partial …

Alcohol And Metabolic Stress Synergize To Dysregulate Mitochondrial Health And Lipid Metabolism; Evidence From A Hepatocyte Spheroid Model, Eden M. Gallegos, Kaitlin Couvillion, Drake Darden, Keishla Rodriguez-Graciani, Patricia E. Molina, Liz Simon

School of Graduate Studies Faculty Publications

Metabolic dysfunction-associated steatotic liver disease and alcohol-associated liver disease frequently co-occur, manifesting as MetALD. Understanding the hepatocyte-specific effects of alcohol and metabolic stressors is critical to uncovering mechanisms of synergistic injury. This study evaluated the individual and combined effects of ethanol, sugars, and saturated/monounsaturated fats on hepatocyte lipid metabolism, oxidative stress, and mitochondrial function using a 3D human HepaRG spheroid model. HepaRG spheroids were treated with ethanol (50 mm), sugar (glucose and fructose), and fatty acids alone or in combination for 10 d. The combination of ethanol (E) and metabolic (sugar and fat, SF) stressors (ESF) synergistically increased triglyceride content …

Atypical Abdominal Pain: Uncovering Malignant Peritoneal Mesothelioma In Suspected Crohn's Disease: A Case Report, Catherine Loehr, Lara Boudreaux, Ann Porter Uhlhorn, Nisha Loganantharaj

School of Medicine Faculty Publications

BACKGROUND: Malignant peritoneal mesothelioma (MPM) is a rare and aggressive cancer from the serosal membranes of the abdominal cavity. In the United States, MPM accounts for about 10-15% of all mesothelioma cases, and translates into approximately 600 new cases diagnosed annually. It is typically diagnosed in Caucasian individuals, and while asbestos exposure is a well-established risk factor for pleural mesothelioma, its association with peritoneal mesothelioma remains less clear. Clinical symptoms of MPM, such as abdominal pain, bloating, and weight loss, overlap with other gastrointestinal disorders, which often leads to delayed diagnosis. This case report presents a unique instance of MPM …

Impact Of Surgical Refusal On Overall Survival In Patients With Rectal Cancer, Vishal Abhimutt Mahesh, Anjali Yadav, Harsheen Kaur Manaise, Berkay Demirors, Paola Berrios Jiminez, Angel Aguayo-Merly, Jade C. Bowers, Bansi P. Savaliya, Reed Popp, Ramin Shekouhi, Guido Chiriboga, Syeda Hoorulain Ahmed, Fatima Mubarak, Esinam Ekpeh, Emmanuel Gabriel

School of Medicine Faculty Publications

BACKGROUND/AIM: While surgery is a major component of treatment for managing rectal cancer, some individuals opt against it, potentially affecting their chances of survival. This study investigated the clinical and demographic elements linked to the decision to refuse surgery and assessed the potential impact of this decision on overall survival (OS). PATIENTS AND METHODS: We conducted a retrospective cohort study using the U.S. National Cancer Database to analyze factors linked to surgery refusal in patients with rectal cancer. Clinical, demographic and treatment characteristics were compared using Pearson chi-square and Wilcoxon rank-sum tests. RESULTS: Among the 115,066 patients with rectal cancer …

Glucagon-Like Peptide 1 Receptor Agonists And The Clinical Outcomes Of Inflammatory Bowel Disease: A Systematic Review And Meta-Analysis, Ahmed B. Bayoumy, Lindsay M. Clarke, Parakkal Deepak, Aakash Desai, Priya Sehgal, Uri Gorelik, Haggai Bar-Yoseph, Marie Villumsen, Chris J. J. Mulder, Dirk J. Stenvers, Maarten E. Tushuizen, Nanne K. H. De Boer

Division of Gastroenterology and Hepatology Faculty Papers

BACKGROUND: Prior studies showed worse outcomes in obese inflammatory bowel disease (IBD) patients, especially those related to hospitalizations, surgery, and steroid-free remission. Glucagon-like peptide-1 receptor agonists (GLP1-RAs) have demonstrated significant metabolic benefits for patients with type 2 diabetes mellitus (T2DM) and obesity. Hence, GLP1-RAs may improve clinical outcomes in patients with IBD, especially those with obesity. The objective was to systematically evaluate the impact of GLP1-RAs on clinical outcomes in patients with IBD.

METHODS: A comprehensive literature search was performed using the databases PubMed, Embase, Web of Science, and Cochrane Library from inception to March 15, 2025. Studies reporting outcomes …

Neighborhood Social Cohesion Associated With Chronic Liver Disease Prevalence And All-Cause Mortality, Tiange P. Zhang, Jennifer L. Dodge, Divya Ayyala-Somayajula, Norah A. Terrault

Division of Gastroenterology and Hepatology Faculty Papers

Background and Aims: Neighborhood social cohesion (NSC)—the degree of trust and solidarity within a community—may influence health through multiple pathways including shaping healthy norms, perception of safety, and stress. Whether NSC influences chronic liver disease (CLD) prevalence and associated mortality in the United States is unknown. Methods: Using 172,047 adults from the 2013–2018 National Health Interview Survey with linkage to National Death Index mortality data, NSC was measured using questions on help availability, accountability, trustworthiness, and connectedness among neighbors, with composite scores (4–16) categorized as minimal (4–7), low (8–10), moderate (11–13), and high (14–16). Logistic and Cox regression tested the …

Multimodal Reprogramming Of The Tumor Microenvironment By Mmr And Dual Checkpoint Blockade In Hepatocellular Carcinoma Models, Mulu Z. Tesfay, Aleksandra Cios, Khandoker Usran Ferdous, Randal S. Shelton, Bahaa Mustafa, Camila C. Simoes, Murat Gokden, Isabelle R. Miousse, Kimberly J. Krager, Marjan Boerma, Alicja Urbaniak, Anuradha Kunthur, Sri Obulareddy, Joshua M. Eichhorn, Steven R. Post, Jean Christopher Chamcheu, Omeed Moaven, Chiswili Y. Chabu, Dan G. Duda, Matteo Conti, Bruno Nardo, Rang Govindarajan, Martin E. Fernandez-Zapico, Lewis R. Roberts, Mitesh J. Borad, Martin J. Cannon, Alexei G. Basnakian, Bolni M. Nagalo

School of Graduate Studies Faculty Publications

Hepatocellular carcinoma (HCC) is a leading cause of cancer-related death worldwide, thus, there is an urgent need to develop more effective therapeutic options for this dismal condition. Tumor-infiltrating lymphocytes (TILs) are associated with improved response to immune checkpoint blockade in HCC, but their low abundance in most cases limits their therapeutic efficacy. Here, we demonstrate, in mice, that low-dose intratumoral immunovirotherapy with the trivalent measles, mumps, and rubella vaccine (MMR) induces superior tumor-growth delay and extended host survival compared to individually administered vaccines for measles, mumps, or rubella viruses. Further, our results show that MMR therapy synergizes with PD-1 and …

Failure To Rescue After Surgery For Pancreatic Cancer: A Systematic Review And Narrative Synthesis Of Risk Factors And Safety Strategies, Masashi Uramatsu, Yoshikazu Fujisawa, Paul Barach, Hiroaki Osakabe, Moe Matsumoto, Yuichi Nagakawa

College of Population Health Faculty Papers

Background: Failure to rescue (FTR), defined as death after major postoperative complications, is a critical quality indicator in pancreatic cancer surgery. Despite advances in surgical techniques and perioperative care, FTR rates remain high and vary across institutions. Methods: This systematic review uses a narrative synthesis followed by PRISMA 2020. A PubMed search (1992-2025) identified 83 studies; after screening, 52 studies (2010-2025) were included. Eligible designs were registry-based, multicenter, single-center, or prospective audits. Given substantial heterogeneity in study designs, FTR definitions, and outcome measures, a narrative synthesis was performed; no formal risk-of-bias assessment or meta-analysis was conducted. Results: …

A Comparative Evaluation Of Two Subharmonic-Aided Pressure Estimation (Shape) Analysis Methods, Hailee Mayer, Priscilla Machado, Trang Vu, Annalisa Berzigotti, Jaume Bosch, Elton Dajti, Antonina Antonenko, Kirk Wallace, Flemming Forsberg

Department of Radiology Faculty Papers

Pressure measurement in clinical practice is a valuable tool for diagnostic evaluation, especially in diseases such as portal hypertension. Currently, portal pressures are measured by invasive hepatic vein catheterization, posing risks to patients, and limiting how often measurements can be obtained. Subharmonic-aided pressure estimation (SHAPE) is an ultrasound-based technique that leverages ultrasound contrast agents (UCAs) to estimate changes in hydrostatic pressure. UCAs act as nonlinear oscillators when exposed to high enough acoustic pressures (typically > 200 kPa) and produce significant energy components ranging from subharmonics to higher harmonics. Tissues do not generate significant subharmonic components, thus making it the optimal component …

Immunotherapy For Precision Medicine In Colorectal Cancer, Miao Cao, Michael Xu, Zinah Bairmani, Babar Bashir, Scott A. Waldman, Adam E. Snook

Department of Pharmacology, Physiology, and Cancer Biology Faculty Papers

INTRODUCTION: Colorectal cancer (CRC) is the fourth most common cancer and second leading cause of cancer-related death in the United States. The implementation of CRC screening has decreased CRC incidence in adults older than 65 years. However, among young adults who experience more aggressive disease progression, CRC incidence has been increasing for decades. Immunotherapy represents a collection of innovative and promising approaches with greater efficacy and safety. In this review, we discuss modalities and selected targets of immunotherapies for CRCs that are guided by precision medicine.

AREAS COVERED: The following review focuses on immunological approaches for CRCs, including therapeutic monoclonal …

The Predilection Of Specific Diseases To Affect Different Sections Of The Esophagus, Monjur Ahmed

Division of Gastroenterology and Hepatology Faculty Papers

Certain esophageal diseases have a predilection for affecting different parts of the esophagus. This predilection is noted in our clinical practice as we investigate various esophageal diseases using multiple imaging and motility studies, as well as endoscopic procedures with biopsies. Clinical presentations vary with the stage and location of the disease. Clinicians can suspect certain diseases when a particular part of the esophagus is involved and then can perform appropriate investigations. Esophageal diseases with section involvement, with their symptomatology, diagnostic tests, and management, have been discussed in this narrative review. This review aims to revisit those diseases with a current …