Publication: Blastocystis hominis infection in irritable bowel syndrome patients
Issued Date
2004-09-01
Resource Type
ISSN
01251562
Other identifier(s)
2-s2.0-8444252187
Rights
Mahidol University
Rights Holder(s)
SCOPUS
Bibliographic Citation
Southeast Asian Journal of Tropical Medicine and Public Health. Vol.35, No.3 (2004), 705-710
Suggested Citation
Anchalee Tungtrongchitr, Sathaporn Manatsathit, Chomsri Kositchaiwat, Jeerawan Ongrotchanakun, Nantiya Munkong, Pisith Chinabutr, Somchai Leelakusolvong, Wanpen Chaicumpa Blastocystis hominis infection in irritable bowel syndrome patients. Southeast Asian Journal of Tropical Medicine and Public Health. Vol.35, No.3 (2004), 705-710. Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/21568
Research Projects
Organizational Units
Authors
Journal Issue
Thesis
Title
Blastocystis hominis infection in irritable bowel syndrome patients
Other Contributor(s)
Abstract
Irritable bowel syndrome (IBS) is a functional bowel disorder in which abdominal pain is associated with a defect or a change in bowel habits. Subtle inflammation, especially after infectious enteritis, has been sometimes suspected as one mechanism of pathogenesis. This research was performed (1) to evaluate the prevalence of parasitic infections and (2) the possible association of IBS and parasitic infections. Fifty-nine IBS patients were recruited using symptom-based criteria (Rome Criteria II) with an absence of intestinal parasitic infection by direct smear method. Stool samples of individual patients were examined using 7 methods, ie examination for stool occult blood, simple saline smear method, formalin-ether technique, culture for Blastocystis hominis, modified trichrome stain, modified Ziehl-Neelsen method, and trichrome stain for parasitic and bacterial infections. Of the 59 patients, stool samples of 13 patients (22.1%) were positive for parasites. These were B. hominis (13.6%), Strongyloides stercoralis larvae (1.7%), Giardia lamblia cysts (1.7%), and non-pathogenic protozoa, ie Endolimax nana cysts (5.1%). The prevalence rate of parasitic infections in the control group (20%) was not statistically different from the patients. There was no statistical difference between B. hominis infection in IBS patients and control was found in this study (p = 0.87). In the IBS group, B. hominis infection predominated (13.6%), while other parasitic infections were found in 8.5%. The culture method for B. hominis is more sensitive than the direct (simple) stool smear method, which is the routine diagnostic method in most laboratories. These results were also found in control group.