Gastroenterology Commons^™

An Electronic Medical Records-Based Approach To Identify Idiosyncratic Drug-Induced Liver Injury In Children., Tracy L. Sandritter, Jennifer Goldman, Clayton J Habiger, James F. Daniel, Jennifer Lowry, Ryan T. Fischer

Manuscripts, Articles, Book Chapters and Other Papers

Drug-induced liver injury (DILI) is the leading cause of liver failure in the United States and the most common cause of drug recall. As opposed to the recognized direct toxicity of super-therapeutic acetaminophen or chemotherapeutic agents in children, limited data exists for pediatric populations on the incidence of idiosyncratic DILI (iDILI) that may develop independently of drug dose or duration of administration. To improve the detection of adverse drug reactions at our hospital, we utilized electronic medical records-based automated trigger tools to alert providers of potential iDILI. Clinical criteria concerning for iDILI were defined as serum ALT > 5x or serum …

Sirna Targeting And Treatment Of Gastrointestinal Diseases., Rachel Chevalier

Manuscripts, Articles, Book Chapters and Other Papers

RNA interference via small interfering RNA (siRNA) offers opportunities to precisely target genes that contribute to gastrointestinal (GI) pathologies, such as inflammatory bowel disease, celiac, and esophageal scarring. Delivering the siRNA to the GI tract proves challenging as the harsh environment of the intestines degrades the siRNA before it can reach its target or blocks its entry into its site of action in the cytoplasm. Additionally, the GI tract is large and disease is often localized to a specific site. This review discusses polymer and lipid-based delivery systems for protection and targeting of siRNA therapies to the GI tract to …

Targeting Transcription Factor Tcf4 By Γ-Mangostin, A Natural Xanthone., Balaji Krishnamachary, Dharmalingam Subramaniam, Prasad Dandawate, Sivapriya Ponnurangam, Pugazhendhi Srinivasan, Prabhu Ramamoorthy, Shahid Umar, Sufi Mary Thomas, Animesh Dhar, Seth Septer, Scott J. Weir, Thomas M. Attard, Shrikant Anant

Manuscripts, Articles, Book Chapters and Other Papers

Given that colon cancer is the third most common cancer in incidence and cause of death in the United States, and current treatment modalities are insufficient, there is a need to develop novel agents. Towards this, here we focus on γ-Mangostin, a bioactive compound present in the Mangosteen (Garcinia mangostana) fruit. γ-Mangostin suppressed proliferation and colony formation, and induced cell cycle arrest and apoptosis of colon cancer cell lines. Further, γ-Mangostin inhibited colonosphere formation. Molecular docking and CETSA (Cellular thermal shift assay) binding assays demonstrated that γ-Mangostin interacts with transcription factor TCF4 (T-Cell Factor 4) at the β-catenin …

Comparison Of The Use Of Wireless Capsule Endoscopy With Magnetic Resonance Enterography In Children With Inflammatory Bowel Disease., Nadia Mazen Hijaz, Thomas M. Attard, Jennifer Colombo, Neil J. Mardis, Craig A. Friesen

Manuscripts, Articles, Book Chapters and Other Papers

Background: Magnetic resonance enterography (MRE) and wireless capsule endoscopy (WCE) are equally accepted modalities for noninvasive screening of small bowel involvement (SBI) in children with Crohn's disease (CD) and indeterminate colitis (IC) albeit there is a paucity of data comparing the two and thereby guiding the clinician in selecting the ideal diagnostic approach. Therefore, the goal of this study is to provide additional evidence for capsule endoscopy role in the evaluation of established Crohn's disease exacerbation compared to MRE in relation to Pediatric Crohn's Disease Activity Index (PCDAI), and histological indices.

Aim: To prospectively compare the findings of MRE and …

Evaluation Of Clinical Outcomes In An Interdisciplinary Abdominal Pain Clinic: A Retrospective, Exploratory Review., Amanda D. Deacy, Craig A. Friesen, Vincent S. Staggs, Jennifer Verrill Schurman

Manuscripts, Articles, Book Chapters and Other Papers

Background: Pediatric functional gastrointestinal disorders (FGIDs) are common and well-accepted to be etiologically complex in terms of the contribution of biological, psychological, and social factors to symptom presentations. Nonetheless, despite its documented benefits, interdisciplinary treatment, designed to address all of these factors, for pediatric FGIDs remains rare. The current study hypothesized that the majority of pediatric patients seen in an interdisciplinary abdominal pain clinic (APC) would demonstrate clinical resolution of symptoms during the study period and that specific psychosocial variables would be significantly predictive of GI symptom improvement.

Aim: To evaluate outcomes with interdisciplinary treatment in pediatric patients with pain-related …

Pediatric Ppi Use And Fractures, Nathan R. Fleishman Md, Thomas M. Attard, Troy E. Richardson

Research Days

No abstract provided.

Effect Of Crohn’S Disease On Villous Length And Cyp3a4 Expression In The Pediatric Small Intestine, Brian D. Chapron

Research Days

No abstract provided.

Is It Possible To Predict The Need Of Gastrostomy Tube In Nicu Patients With Short Bowel Syndrome?, Katherine Black

Research Days

No abstract provided.

Prospective Evaluation Of A Population Pharmacokinetic Model Of Pantoprazole For Obese Children, Alenka Chapron

Research Days

No abstract provided.

A Review Of First Year Fellow Endoscopic Skills And Time To Proficiency, Dalya El Tawil, Antoinette Adjowa O. Walker

Research Days

No abstract provided.

Pediatric Ppi Use And Fractures, Nathan R. Fleishman, Troy Richardson, Thomas M. Attard

Posters

This study compared the rate of fracture among pediatric patients exposed to proton pump inhibitors to the rate among patients without exposure, and also considered the fracture location among children exposed to proton pump inhibitors.

A Review Of First Year Fellow Endoscopic Skills And Time To Proficiency, Antoinette Adjowa O. Walker, Dalya El Tawil, Jennifer Colombo, Nicholas Clark, Kimberly J. Reid

Posters

Through this quality improvement project, we have assessed the current fellows' upper endoscopy skill level during their first year and determined that the time to achieving proficiency is significantly longer than desired. The goal is to prepare new fellows for endoscopy prior to the beginning of their rotations with a curriculum that includes assigned reading materials, videos, and simulated endoscopic cases, to promote safety and increase satisfaction of patients by improving the readiness, skill level, and the confidence of first year inexperienced fellows.

A Comparison Of The Diagnosis Of Gastroparesis In 4 H Pediatric Gastric Emptying Studies Versus 2 H Studies., Sarah T. Edwards, Jose Cocjin, Stephanie B. Theut, Douglas C. Rivard, Ashley K. Sherman, Craig A. Friesen

Manuscripts, Articles, Book Chapters and Other Papers

BACKGROUND: In adults, there is a consensus for standards to diagnose gastroparesis utilizing a gastric emptying study as the key diagnostic modality but there is no consensus for a standard in pediatrics. Additionally, some cost savings might be achieved if symptoms could be utilized to predict patients with gastroparesis. The aims of the current study were to confirm the sensitivity of a 4 h study in the pediatric population and to assess whether the severity of symptoms were predictive of delayed gastric emptying.

STUDY: This was a single site, two part study. In the first part, results were reviewed for …

Identification Of Novel Regulatory Genes In Apap Induced Hepatocyte Toxicity By A Genome-Wide Crispr-Cas9 Screen., Katherine Shortt, Daniel P. Heruth, Nini Zhang, Weibin Wu, Shipra Singh, Ding-You Li, Li Qin Zhang, Gerald J. Wyckoff, Lei S Qi, Craig A. Friesen, Shui Qing Ye

Manuscripts, Articles, Book Chapters and Other Papers

Acetaminophen (APAP) is a commonly used analgesic responsible for more than half of acute liver failure cases. Identification of previously unknown genetic risk factors would provide mechanistic insights and novel therapeutic targets for APAP-induced liver injury. This study used a genome-wide CRISPR-Cas9 screen to evaluate genes that are protective against, or cause susceptibility to, APAP-induced liver injury. HuH7 human hepatocellular carcinoma cells containing CRISPR-Cas9 gene knockouts were treated with 15 mM APAP for 30 minutes to 4 days. A gene expression profile was developed based on the 1) top screening hits, 2) overlap of expression data from APAP overdose studies, …