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J Gastroenterol Hepatol. 1993 Jan-Feb;8(1):116-8.

Bacterial invasion into the colonic mucosa in ulcerative colitis.

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First Department of Internal Medicine, School of Medicine, Tokyo Medical and Dental University, Japan.


This study investigated interactions between mucosal lesions and bacterial invasion in ulcerative colitis using the acridine-orange staining method. In all 16 cases of ulcerative colitis, the mucosa was found to be invaded by small rods and cocci. In five of 10 controls, bacteria were seen only adhering to the mucosa and no bacteria were detected in the five remaining cases. It is suggested that the presence of bacteria in the colonic mucosa may be a factor responsible for the persistence or aggravation of ulcerative colitis.

[Indexed for MEDLINE]

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