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Abnormal Expression Proteins, Mitochondrial DNA and miRNA of Irritable Bowel Syndrome (IBS)

The recruitment status of this study is unknown. The completion date has passed and the status has not been verified in more than two years.
Verified December 2006 by Chinese PLA General Hospital.
Recruitment status was:  Active, not recruiting
Information provided by:
Chinese PLA General Hospital Identifier:
First received: December 8, 2009
Last updated: February 10, 2011
Last verified: December 2006
In the investigators study, the investigators will focus on the screening of the related proteins and miRNA to IBS in order to reveal the possible clues or molecular mechanism for this disorder.

Irritable Bowel Syndrome Digestive System Diseases Gastrointestinal Diseases Intestinal Diseases Colonic Diseases Colonic Diseases, Functional

Study Type: Observational
Study Design: Observational Model: Case Control
Time Perspective: Prospective
Official Title: Screening and Identification of Abnormal Expression Proteins and miRNA From Colonic Mucosa of Patients With Irritable Bowel Syndrome.

Further study details as provided by Chinese PLA General Hospital:

Biospecimen Retention:   Samples With DNA
The investigators enrolled IBS-D and IBS-C patients on the Rome III criteria and healthy volunteers as normal control group. Biopsies were taken from the cecum and sigmoid colon under direct vision. Five pieces were taken separately at each site. Four pieces were processed by cold saline water and frozen in liquid nitrogen immediately while the other one was fixed in formalin and then embedded in paraffin three days later.

Estimated Enrollment: 180
Study Start Date: January 2006
Estimated Study Completion Date: December 2012
Estimated Primary Completion Date: August 2011 (Final data collection date for primary outcome measure)
Detailed Description:
For the proteomic procedures, Our study groups extracted proteins from the cecum and sigmoid colon samples and ran on the two-dimensional gel electrophoresis (2-DE). The proteins on 2-DE were visualized by the silver stain, and then gel maps were scanned and analyzed with the Image Master 2D Elite. The obvious abnormal protein spots were identified by the mass spectrometry. Western blot 、 immunohistochemistry 、 mRNA and miRNA were also performed for further verification of the proteins.

Ages Eligible for Study:   18 Years to 60 Years   (Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   Yes
Sampling Method:   Probability Sample
Study Population
IBS patients (IBS-D and IBS-C)and healthy control

Inclusion Criteria:

  • Patients with symptoms meeting Rome III criteria for diagnosis of IBS-C and IBS-D

Exclusion Criteria:

  • Patients with organic illnesses or a history of major abdominal surgery
  • Major psychotic episode, mental retardation or dementia
  • Pregnant women and lactational women
  • Postinfectious IBS, PI-IBS
  Contacts and Locations
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Please refer to this study by its identifier: NCT01028898

Sponsors and Collaborators
Chinese PLA General Hospital
Study Chair: YANG Yun-sheng, MD Chinese PLA General Hospital
Principal Investigator: ZHANG Chun-yan, doctor Chinese PLA General Hospital
Principal Investigator: WANG Weifeng, doctor Chinese PLA General Hospital
Principal Investigator: YAO XIN, DOCTOR Chinese PLA General Hospital
Principal Investigator: PENG LIHUA, DOCTOR Chinese PLA General Hospital
Principal Investigator: YU YUANZI, DOCTOR Chinese PLA General Hospital
  More Information

Publications automatically indexed to this study by Identifier (NCT Number):
Responsible Party: YANG Yun-sheng, ChinaPLAGH Identifier: NCT01028898     History of Changes
Other Study ID Numbers: IBS and metabolism
Study First Received: December 8, 2009
Last Updated: February 10, 2011

Keywords provided by Chinese PLA General Hospital:
fluorescent quantitation polymerase chain reaction
Western blot
immunohistochemistry staining (IHC)
ATP content

Additional relevant MeSH terms:
Irritable Bowel Syndrome
Gastrointestinal Diseases
Digestive System Diseases
Colonic Diseases
Intestinal Diseases
Colonic Diseases, Functional
Pathologic Processes processed this record on August 17, 2017