Erschienen in:
01.09.2011 | Original Research Paper
GC/MS-based profiling of amino acids and TCA cycle-related molecules in ulcerative colitis
verfasst von:
Makoto Ooi, Shin Nishiumi, Tomoo Yoshie, Yuuki Shiomi, Michitaka Kohashi, Ken Fukunaga, Shiro Nakamura, Takayuki Matsumoto, Naoya Hatano, Masakazu Shinohara, Yasuhiro Irino, Tadaomi Takenawa, Takeshi Azuma, Masaru Yoshida
Erschienen in:
Inflammation Research
|
Ausgabe 9/2011
Einloggen, um Zugang zu erhalten
Abstract
Objective
The roles that amino acids play in immunity and inflammation are well defined, and the relationship between inflammatory bowel disease (IBD) and certain amino acids has recently attracted attention. In this study, the levels of amino acids and trichloroacetic acid (TCA) cycle-related molecules in the colonic tissues and sera of patients with ulcerative colitis (UC) were profiled by gas chromatography/mass spectrometry (GC/MS), with the aim of evaluating whether the clinical state induced by UC leads to variations in the amino acid profile.
Materials and methods
Colonic biopsy samples from 22 UC patients were used, as well as serum samples from UC patients (n = 13), Crohn’s disease (CD) patients (n = 21), and healthy volunteers (n = 17).
Results
In the GC/MS-based profiling of amino acids and TCA cycle-related molecules, lower levels of 16 amino acids and 5 TCA cycle-related molecules were observed in the colonic lesion tissues of the UC patients, and the serum profiles of amino acids and TCA cycle-related molecules of the UC patients were different from those of the CD patients and healthy volunteers.
Conclusions
Our study raises the possibility that GC/MS-based profiling of amino acids and TCA cycle-related molecules is a useful early diagnostic tool for UC.