Gastroenterology Commons^™

Stool Microbiome, Ph And Short/Branched Chain Fatty Acids In Infants Receiving Extensively Hydrolyzed Formula, Amino Acid Formula, Or Human Milk Through Two Months Of Age, Car Reen Kok, Bradford Brabec, Maciej Chichlowski, Cheryl L. Harris, Nancy Moore, Jennifer L. Wampler, Jon Vanderhoof, Devin Rose, Robert Hutkins

Food for Health: Publications

CRISPR–Cas is an anti-viral mechanism of prokaryotes that has been widely adopted for genome editing. To make CRISPR–Cas genome editing more controllable and safer to use, anti-CRISPR proteins have been recently exploited to prevent excessive/prolonged Cas nuclease cleavage. Anti-CRISPR (Acr) proteins are encoded by (pro)phages/(pro)viruses, and have the ability to inhibit their host’s CRISPR–Cas systems. We have built an online database AcrDB (http://bcb.unl.edu/AcrDB) by scanning ∼19 000 genomes of prokaryotes and viruses with AcrFinder, a recently developed AcrAca (Acr-associated regulator) operon prediction program. Proteins in Acr-Aca operons were further processed by two machine learning-based programs (AcRanker and PaCRISPR) to obtain …

Helicobacter Pylori Infection And Its Importance In The Development Of Idiopathic Thrombocytopenic Purpura, Zilola Khashimova

Physician Assistant Studies | Faculty Scholarship

Helicobacter Pylori (HP) infection has been associated with chronic inflammation of the stomach and may also be associated with Idiopathic thrombocytopenic purpura (ITP). A literature review was conducted on the reported research of HP infection associated with ITP.

Prior Tonsillectomy Is Associated With An Increased Risk Of Esophageal Adenocarcinoma., Katherine S Garman, Teminioluwa A Ajayi, Harold J Boutte, Shih-Ting Chiu, Richard J Von Furstenberg, Benjamin R Lloyd, Cecelia Zhang, Mark W Onaitis, Shein-Chung Chow, Shannon J Mccall

Articles, Abstracts, and Reports

BACKGROUND: Esophageal cancer is a deadly cancer with 5-year survival

METHODS: Cases included 452 esophagectomy cases, including 396 with EAC and 56 who underwent esophagectomy for Barrett's esophagus (BE) with high grade dysplasia (HGD). 1,102 thoracic surgery patients with surgical indications other than dysplastic BE or esophageal cancer represented the controls for our analysis. The association of tonsillectomy and HGD/EAC were primarily evaluated by using univariate tests and then verified by logistic regression analysis. Baseline demographics, medical history, and thoracic surgery controls were compared by using χ2 tests or 95% CIs. Significant risk factors were considered as covariates in the …

Recent Advances In The Treatment Of Clostridioides Difficile Infection: The Ever-Changing Guidelines, Shruti Khurana, Alyssa Kahl, Kevin Yu, Andrew W Dupont

Faculty, Staff and Student Publications

No abstract provided.

Elucidating The Complex Signaling Events Driving Intestinal Stem Cell Plasticity Following Injury, Evan Lynch

Theses and Dissertations--Microbiology, Immunology, and Molecular Genetics

Signaling events governing intestinal stem cell (ISC) homeostasis maintain the delicate balance of active self-renewal and passive differentiation to replenish intestinal epithelial cells (IEC) every 3-5 days. However, under certain contexts, ISC function is irreversibly compromised—requiring committed IEC lineages to dedifferentiate and regain “stemness”. In the current studies, we examine the signaling events driving epithelial cell responses to injury to expose pathologic failures in the healing response. Our specific goal is to tease out the cellular contexts that promote dedifferentiation to design effective therapeutics for disease conditions compromising ISC function.

First, we generated a novel transgenic animal using the epithelial-specific …

Mucosa-Associated Microbiota In Barrett’S Esophagus, Dysplasia, And Esophageal Adenocarcinoma Differ Similarly Compared With Healthy Controls, Shajan Peter, Amanda Pendergraft,, William Vanderpol, Mel Wilcox, Kondal R. Kyanam Kabir Baig, Casey Morrow, Jacques Izard, Peter J. Mannon

Department of Food Science and Technology: Faculty Publications

Introduction: Alterations in the composition of the human gut microbiome and its metabolites have been linked to gut epithelial neoplasia. We hypothesized that differences in mucosa-adherent Barrett’s microbiota could link to risk factors, providing risk of progression to neoplasia.

Methods: Paired biopsies from both diseased and nonaffected esophagus (as well as gastric cardia and gastric juice for comparison) from patients with intestinal metaplasia (n = 10), low grade dysplasia (n = 10), high grade dysplasia (n = 10), esophageal adenocarcinoma (n = 12), and controls (n = 10) were processed for mucosa-associated bacteria …

Metaproteomic Analysis Of Human Gut Microbiome In Digestive And Metabolic Diseases, Sheng Pan, Ru Chen

Faculty, Staff and Students Publications

Metaproteomics, as a subfield of proteomics, has quickly emerged as a pivotal tool for global characterization of a microbiome system at a functional level. It has been increasingly applied in studying human digestive and metabolic diseases, and provides information-rich data to identify the dysbiosis of human gut microbiome related to healthy or disease states to elucidate the molecular events underlying host-microbiota interplays. While significant technical challenges still exist, this emerging technology has been demonstrated to provide essential information in interrogating functional changes in the human gut microbiome, complementary to metagenomics and metatranscriptomics. This chapter overviews the overall metaproteomic work flow …

A Remarkable Response Of Granulomatous Hypophysitis To Infliximab In A Patient With A Background Of Crohn's Disease-A Case Report, Bahar K Force, Tiphanie P Vogel, Dang M Nguyen, Kent A Heck, Sherly Sebastian, Mas Takashima, Daniel Yoshor, Susan L Samson

Faculty, Staff and Students Publications

Associated Data

A Simple Technique For The Management Of Refractory Gastrostomy Site Complications A Technical Innovation In Gastrostomy Tube Site Revision, Rebecca M. Rentea, Wendy Jo Svetanoff, Charlene Dekonenko, Courtney Pisano, Charles L. Snyder

Manuscripts, Articles, Book Chapters and Other Papers

Introduction

Longstanding gastrostomy sites are prone to leakage and excoriation secondary to protrusion of gastric mucosa into the tract, dilation of the site over time, and development of refractory granulation tissue. Surgical revision with creation of a new gastric and skin exit site can be difficult. We describe a technique to re-site a gastrostomy tube (GT) utilizing the existing GT site.

Materials and methods

For one patient with gastrostomy site refractory complications, we re-sited the GT using the existing site. A clamp was placed through the old GT site and was palpated through the abdominal wall. An incision over the …

Over-The-Counter Drug Causing Acute Pancreatitis, Swetha Parvataneni, Rajesh Essrani, Shehriyar Mehershahi, Rajesh Essrani, Ajeet Kumar Lohana, Asif Mehmood

Section of Gastroenterology

Acute pancreatitis is caused by alcohol, gall stone disease, drugs, trauma, infections, and metabolic causes such as hypercalcemia and hyperlipidemia. Hypercalcemia-induced acute pancreatitis has been well documented but only rarely occurs due to over-the-counter calcium carbonate. In this article, we present a case of over-the-counter calcium carbonate-induced acute pancreatitis.

Somatic Symptoms And Binge Eating In Women's Daily Lives, Kelly A. Romano, Kristin E. Heron, Kathryn E. Smith, Ross D. Crosby, Scott G. Engel, Stephen A. Wonderlich, Raina D. Pang, Tyler B. Mason

Psychology Faculty Publications

Objective

The present study aimed to determine whether the momentary severity of women's somatic symptoms was concurrently and prospectively associated with their engagement in binge eating in naturalistic settings.

Method

Thirty women (M_age = 34.13, SD = 13.92) who had engaged in binge eating at least once over the month prior to study entry completed a 14-day ecological momentary assessment (EMA) protocol. During each of the 14 days, participants received five semi-random surveys via text message that assessed momentary somatic symptom severity (i.e., headaches, stomachaches/pain, chest/heart pain, faintness/dizziness, shortness of breath, fatigue) and disordered eating behaviors. Generalized estimating equations …

Hypomorphic Si Genetic Variants Are Associated With Childhood Chronic Loose Stools., Bruno P Chumpitazi, Jeffery Lewis, Derick Cooper, Mauro D'Amato, Joel Lim, Sandeep Gupta, Adrian Miranda, Natalie Terry, Devendra Mehta, Ann Scheimann, Molly O'Gorman, Neelesh Tipnis, Yinka Davies, Joel Friedlander, Heather Smith, Jaya Punati, Julie Khlevner, Mala Setty, Carlo Di Lorenzo

Manuscripts, Articles, Book Chapters and Other Papers

OBJECTIVE: The SI gene encodes the sucrase-isomaltase enzyme, a disaccharidase expressed in the intestinal brush border. Hypomorphic SI variants cause recessive congenital sucrase-isomaltase deficiency (CSID) and related gastrointestinal (GI) symptoms. Among children presenting with chronic, idiopathic loose stools, we assessed the prevalence of CSID-associated SI variants relative to the general population and the relative GI symptom burden associated with SI genotype within the study population.

METHODS: A prospective study conducted at 18 centers enrolled 308 non-Hispanic white children ≤18 years old who were experiencing chronic, idiopathic, loose stools at least once per week for >4 weeks. Data on demographics, GI …