The researchers will investigate gut microbiome in Korean patients with ulcerative colitis and normal control subjects using metagenomic analysis to elucidate the significant difference between two groups This study will help to understand the association between gut microbiome and inflammatory bowel disease.
Observational Model: Case Control, Time Perspective: Prospective
Colonoscopy biopsy, stool collection, colonoscopy biopsy, stool collection
Seoul National University Hospital
Seoul
Korea, Republic of
110-744
Recruiting
Seoul National University Hospital
Published on BioPortfolio: 2014-08-27T03:18:04-0400
Fecal Calprotectin Collection Protocol
The primary objective is to obtain stool samples from subjects with symptoms of an undiagnosed gastrointestinal disorder. All subjects enrolled in the study will undergo a colonoscopy.
Evaluation of New Method for Measuring Stool Consistency
This study is designed to validate a new direct method for the measurement of stool consistency, using Texture Analyser. Forty healthy subjects are enrolled in this trial for collection of...
Molecular Stool Testing for Colorectal Cancer Surveillance
Rationale: Since January 2014 the Dutch screening programme for bowel cancer has been implemented. Screening will increase the demand for surveillance. Although patients in whom adenomas h...
The primary objective of this study is to obtain de-identified, clinically characterized, stool and plasma specimens for use in assessing new markers for the detection of neoplasms of the ...
Sample Collection Study to Evaluate DNA Markers in Subjects With Inflammatory Bowel Disease (IBD)
The primary objective of this study is to gather stool samples from subjects with inflammatory bowel disease (IBD) to be added to a test set of stool samples that will be utilized to help ...
Atypical Colonoscopic Presentation of Lymphocytic Colitis Mimicking Hyperplastic Polyposis Syndrome.
Lymphocytic colitis is a chronic inflammatory disease of colon usually presented in middle age female as chronic watery diarrhea. Diagnosis is made on biopsy as colonoscopy usually revealed normal app...
Incidental, small rectal neuroendocrine tumors during colonoscopy screening are sometimes removed using biopsy forceps. Few studies have examined the clinical course of rectal neuroendocrine tumors re...
Recognition of flat and small neoplastic lesions by colonoscopy is still challenging. High-definition (HD) i-Scan colonoscopy is a promising technique to maximize the sensitivity of colonoscopy; howev...
Endoanal resection of a giant villous adenoma in the middle rectum - Video Vignette.
Villous adenomas are benign tumours that are sometimes large and pedunculated[1]. In the diagnostic workup of giant rectal polyps, in addition to colonoscopy (biopsy) and magnetic resonance imaging, a...
There are limited colonoscopy-based cohort data concerning the effectiveness of colonoscopy in reducing colorectal cancer deaths. The aim of this study was to clarify whether colonoscopy reduces color...
Colitis, Collagenous
A subtype of MICROSCOPIC COLITIS, characterized by chronic watery DIARRHEA of unknown origin, a normal COLONOSCOPY but abnormal histopathology on BIOPSY. Microscopic examination of biopsy samples taken from the COLON show larger-than-normal band of subepithelial COLLAGEN.
Colitis, Lymphocytic
A subtype of MICROSCOPIC COLITIS, characterized by chronic watery DIARRHEA of unknown origin, a normal COLONOSCOPY but abnormal histopathology on BIOPSY. Microscopic examination of biopsy samples taken from the COLON show infiltration of LYMPHOCYTES in the superficial EPITHELIUM and the underlying connective tissue (lamina propria).
Colitis, Microscopic
A condition characterized by chronic watery DIARRHEA of unknown origin, a normal COLONOSCOPY but abnormal histopathology on BIOPSY. This syndrome was first described in 1980 by Read and associates. Subtypes include COLLAGENOUS COLITIS and LYMPHOCYTIC COLITIS. Both have similar clinical symptoms and are distinguishable only by histology.
Library Collection Development
Development of a library collection, including the determination and coordination of selection policy, assessment of needs of users and potential users, collection use studies, collection evaluation, identification of collection needs, selection of materials, planning for resource sharing, collection maintenance and weeding, and budgeting.
Image-guided Biopsy
Conducting a biopsy procedure with the aid of a MEDICAL IMAGING modality.