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High frequency of parasitic and viral stool pathogens in patients with active ulcerative colitis: report from a tropical country.

Abstract：

OBJECTIVE:Diarrhoeal relapses in patients with ulcerative colitis (UC) may be associated with enteric infections and its diagnosis may lessen avoidable exposure to corticosteroids and/or immunosuppressants. The purpose of this study was to assess the frequency of stool pathogens (parasitic and viral) in patients with active UC. MATERIAL AND METHODS:This prospective cross-sectional study included 49 consecutive patients (32 M, 17 F, mean age 35.8+/-12 years) with active UC. Three stool samples were collected from each patient and examined for parasitic infection. Rectal biopsies were obtained during sigmoidoscopy to demonstrate cytomegalovirus (CMV) inclusion bodies and to conduct qualitative polymerase chain reaction (PCR) for CMV and herpes simplex virus (HSV) DNA detection. RESULTS:Median duration of illness was 3.9+/-3.7 years and 83.7% of the patients had moderate to severe disease. The prevalence of parasitic infections in UC was 12%. The organisms isolated were Strongyloides stercoralis in 4%, Ankylostoma duodenale in 4%, Cryptosporidium in 2% and Entamoeba histolytica in 2% of the patients. The prevalence of CMV and HSV in rectal biopsies using qualitative PCR was 8% and 10%, respectively. No predictive factor was identified with CMV superinfection in patients with active UC. CONCLUSIONS:In India there is a high prevalence of parasitic and viral infections in patients with active UC. The results of the study suggest that, in tropical countries with a known high prevalence of parasitic diseases, aggressive evaluation for parasitic and viral infections should be carried out, as early identification and prompt treatment of such infections can improve the clinical course of patients with active UC.

journal_name

Scand J Gastroenterol

journal_title

Scandinavian journal of gastroenterology

authors

Banerjee D,Deb R,Dar L,Mirdha BR,Pati SK,Thareja S,Falodia S,Ahuja V

doi

10.1080/00365520802556809

subject

Has Abstract

pub_date

2009-01-01 00:00:00

pages

325-31

issue

eissn

0036-5521

issn

1502-7708

pii

906182305

journal_volume

pub_type

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High frequency of parasitic and viral stool pathogens in patients with active ulcerative colitis: report from a tropical country.