eQTL in diseased colon tissue identifies novel target genes associated with IBD.

Genome-wide association studies (GWAS) have identified over 300 loci associated with the inflammatory bowel diseases (IBD), but putative causal genes for most are unknown. We conducted the largest disease-focused expression quantitative trait loci (eQTL) analysis using colon tissue from 252 IBD patients to determine genetic effects on gene expression and potential contribution to IBD. Combined with two non-IBD colon eQTL studies, we identified 194 potential target genes for 108 GWAS loci.

National Trends in the Creation of Diverting Ileostomy at the Time of Ileal Pouch-Anal Anastomosis in Adults With Ulcerative Colitis.

Introduction: The impact of diverting ileostomy in adults with ulcerative colitis (UC) undergoing ileal pouch-anal anastomosis (IPAA) is unclear. This study uses a novel approach with population-level data to identify patients with diverting ileostomy at the time of IPAA and determine the impact of diverting ileostomy on postoperative outcomes.

Methods: Using the International Business Machines (IBM) MarketScan® database, adults (18-64 years old) with a diagnosis of UC who underwent IPAA between 2000 and 2019 were examined.

Disparities in Outcomes following Resection of Locally Advanced Rectal Cancer.

Surgical margins following rectal cancer resection impact oncologic outcomes. We examined the relationship between margin status and race, ethnicity, region of care, and facility type. Patients undergoing resection of a stage II-III locally advanced rectal cancer (LARC) between 2004 and 2018 were identified through the National Cancer Database.

Commonly Drawn Immunologic and Inflammatory Markers as Risk Predictors for Anal Cancer in Veterans Living With HIV.

Objectives: This study aimed to determine if immune inflammatory markers (neutrophil lymphocyte ratio [NLR], platelet lymphocyte ratio [PLR], and prognostic nutritional index [PNI]) correlate with anal cancer risk in people living with HIV and to compare these markers with the CD4/CD8 ratio.

Materials And Methods: This is a regional retrospective cohort study of veterans living with HIV who were screened for or diagnosed with anal neoplasia or cancer from 2001 to 2019. The NLR, PLR, PNI, and CD4/CD8 ratio within 1 year of anal pathology results were computed.

Factors Associated With Performing IPAA After Total Colectomy for Ulcerative Colitis.

Background: IPAA is considered the procedure of choice for restorative surgery after total colectomy for ulcerative colitis. Previous studies have examined the rate of IPAA within individual states but not at the national level in the United States.

Objective: This study aimed to assess the rate of IPAA after total colectomy for ulcerative colitis in a national population and identify factors associated with IPAA.