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Reference Manager
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-
1
Zierdt CH, 1988. Blastocystis hominis, a long misunderstood intestinal pathogen. Parasitol Today 4 :15–17.
-
2
Zaman V, 1996. Blastocystis hominis. Weatherall DJ, Ledingham JGG, Warrell D, eds. Oxford Textbook of Medicine. Third Edition. Oxford: Oxford University Press, 887.
-
3
Zaman V, Khan K, 1994. A comparison of direct microscopy with culture for the diagnosis of Blastocystis hominis.Southeast Asian J Trop Med Hyg Public Health 25 :792–793.
-
4
Zierdt CH, 1991. Blastocystis hominis past and future. Microbiol Review 4 :61–79.
-
5
Hussain R, Jafri W, Zuberi S, Baqai R, Abrar N, Ahmed A, Zaman V, 1997. Significantly increased IgG2 subclass antibody levels to Blastocystis homonis in patients with Irritable bowel syndrome.Am J Trop Med Hyg 56 :301–306.
-
6
Ashford RW, Atkinson EA, 1992. Epidemiology of Blastocystis hominis in Papua New Guinea: age prevalence and associations with other parasites. Ann Trop Med Parasitol 86 :129–136.
-
7
Thompson WG, Longstreth GF, Drossman DA, Heaton KW, Irvine EJ, Muller-Lissner SA, 1999. Functional bowel disorders and functional abdominal pain. Gut 45 (Suppl 2):1143–1147.
-
8
Icci N, Toma P, Furlani M, Caselli M, Guillini S, 1984. Blastocystis hominis: a neglected cause of diarrhea? Lancet i :966.
-
9
Llibre JM, Tor J, Manterola JM, Carbonell C, Foz M, 1989. Blastocystis hominis chronic diarrhea in AIDS patients (letter). Lancet i :221.
-
10
Taamasri P, Mungthin M, Rangsin R, Tongupprakarn B, Areekul W, Leelayoova S, 2000. Transmission of intestinal blastocystosis related to the quality of drinking water. Southeast Asian J Trop Med Public Health 31 :112–117.
-
11
Singh M, Suresh K, Ho LC, Ng GC, Yap EH, 1995. Elucidation of the life cycle of the intestinal protozoan Blastocystis hominis.Parasitol Res 81 :446–450.
-
12
Vdovenko AA, 2000. Blastocystis hominis: origin and significance of vacuolar and granular forms. Parasitol Res 86 :8–10.
-
13
Nimri L, Batchoun R, 1994. Intestinal colonization of symptomatic and asymptomatic school children with Blastocystis hominis.J Clin Microbiol 32 :2865–2866.
-
14
Kain KC, Noble MA, Freeman HJ, Barteluk RL, 1987. Epidemiology and clinical features associated with Blastocystis hominis infection. Diagn Microbiol Infect Dis 8 :235–244.
-
15
Kain KC, Ravdin JI, 1995. Galactose-specific adhesion mechanisms of Entamoeba histolytica: model for study of enteric pathogens. Methods Enzymol 253 :424–439.
-
16
Thompson RCA, Reynoldson JA, Mendis AHW, 1993. Giardia and giardiasis. Adv Parasitol 32 :71–160.
-
17
Walderich B, Bernauer S, Renner M, Knobloch J, Burchard GD, 1998. Cytopathic effects of Blastocystis hominis on Chinese hamster ovary (CHO) and adenocarcinoma HT 29 cell cultures. Trop Med Int Health 3 :385–390.
-
18
Carrascosa M, Martinez J, Perez-Castrillon JL, 1996. Hemorrhagic proctosigmoiditis and Blastocystis hominis infection. Ann Intern Med 15 :278–279.
-
19
Ghosh K, Ayyaril M, Nirmala V, 1998. Acute GVHD involving the gastrointestinal tract and infestation with Blastocystis hominis in a patient with chronic myeloid leukaemia following allogeneic bone marrow transplantation. Bone Marrow Transplant 22 :1115–1117.
-
20
Phillips BP, Zierdt CH, 1976. Pathogenic potential in human patients and in gnotobiotes. Exp Parasitol 39 :358–364.
-
21
Collins SM, 1994. Irritable bowel syndrome could be an inflammatory disorder. Eur J Gastroenterol Hepatol 6 :478–483.
| Past two years | Past Year | Past 30 Days | |
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| Abstract Views | 21 | 21 | 6 |
| Full Text Views | 384 | 119 | 1 |
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IRRITABLE BOWEL SYNDROME: IN SEARCH OF AN ETIOLOGY: ROLE OF BLASTOCYSTIS HOMINIS
JAVED YAKOOB
JAVED YAKOOB
Section of Gastroenterology, Departments of Medicine and Pathology, Aga Khan University Hospital, Karachi, Pakistan
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WASIM JAFRI
WASIM JAFRI
Section of Gastroenterology, Departments of Medicine and Pathology, Aga Khan University Hospital, Karachi, Pakistan
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NADIM JAFRI
NADIM JAFRI
Section of Gastroenterology, Departments of Medicine and Pathology, Aga Khan University Hospital, Karachi, Pakistan
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RUSTAM KHAN
RUSTAM KHAN
Section of Gastroenterology, Departments of Medicine and Pathology, Aga Khan University Hospital, Karachi, Pakistan
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MUHAMMAD ISLAM
MUHAMMAD ISLAM
Section of Gastroenterology, Departments of Medicine and Pathology, Aga Khan University Hospital, Karachi, Pakistan
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M. ASIM BEG
M. ASIM BEG
Section of Gastroenterology, Departments of Medicine and Pathology, Aga Khan University Hospital, Karachi, Pakistan
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VIQAR ZAMAN
VIQAR ZAMAN
Section of Gastroenterology, Departments of Medicine and Pathology, Aga Khan University Hospital, Karachi, Pakistan
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This study was designed to examine stool specimens of irritable bowel syndrome (IBS) patients for Blastocystis hominis, a common intestinal parasite. One hundred fifty patients were enrolled, 95 IBS cases and 55 controls. These patients provided a medical history, and underwent physical and laboratory evaluations that included stool microscopy and culture for B. hominis and colonoscopy. The 95 cases (51 males and 44 females) had a mean ± SD age of 37.8 ± 13.2 years. Stool microscopy was positive for B. hominis in 32% (30 of 95) of the cases and 7% (4 of 55) of the controls (P = 0.001). Stool culture was positive in 46% (44 of 95) of the cases and 7% (4 of 55) of the controls (P < 0.001). Stool culture for B. hominis in IBS was more sensitive than microscopy (P < 0.001). Blastocystis hominis was frequently demonstrated in the stool samples of IBS patients; however, its significance in IBS still needs to be investigated. Stool culture has a higher positive yield for B. hominis than stool microscopy.
Author Notes
ProCite
RefWorks
Reference Manager
BibTeX
Zotero
EndNote
-
1
Zierdt CH, 1988. Blastocystis hominis, a long misunderstood intestinal pathogen. Parasitol Today 4 :15–17.
-
2
Zaman V, 1996. Blastocystis hominis. Weatherall DJ, Ledingham JGG, Warrell D, eds. Oxford Textbook of Medicine. Third Edition. Oxford: Oxford University Press, 887.
-
3
Zaman V, Khan K, 1994. A comparison of direct microscopy with culture for the diagnosis of Blastocystis hominis.Southeast Asian J Trop Med Hyg Public Health 25 :792–793.
-
4
Zierdt CH, 1991. Blastocystis hominis past and future. Microbiol Review 4 :61–79.
-
5
Hussain R, Jafri W, Zuberi S, Baqai R, Abrar N, Ahmed A, Zaman V, 1997. Significantly increased IgG2 subclass antibody levels to Blastocystis homonis in patients with Irritable bowel syndrome.Am J Trop Med Hyg 56 :301–306.
-
6
Ashford RW, Atkinson EA, 1992. Epidemiology of Blastocystis hominis in Papua New Guinea: age prevalence and associations with other parasites. Ann Trop Med Parasitol 86 :129–136.
-
7
Thompson WG, Longstreth GF, Drossman DA, Heaton KW, Irvine EJ, Muller-Lissner SA, 1999. Functional bowel disorders and functional abdominal pain. Gut 45 (Suppl 2):1143–1147.
-
8
Icci N, Toma P, Furlani M, Caselli M, Guillini S, 1984. Blastocystis hominis: a neglected cause of diarrhea? Lancet i :966.
-
9
Llibre JM, Tor J, Manterola JM, Carbonell C, Foz M, 1989. Blastocystis hominis chronic diarrhea in AIDS patients (letter). Lancet i :221.
-
10
Taamasri P, Mungthin M, Rangsin R, Tongupprakarn B, Areekul W, Leelayoova S, 2000. Transmission of intestinal blastocystosis related to the quality of drinking water. Southeast Asian J Trop Med Public Health 31 :112–117.
-
11
Singh M, Suresh K, Ho LC, Ng GC, Yap EH, 1995. Elucidation of the life cycle of the intestinal protozoan Blastocystis hominis.Parasitol Res 81 :446–450.
-
12
Vdovenko AA, 2000. Blastocystis hominis: origin and significance of vacuolar and granular forms. Parasitol Res 86 :8–10.
-
13
Nimri L, Batchoun R, 1994. Intestinal colonization of symptomatic and asymptomatic school children with Blastocystis hominis.J Clin Microbiol 32 :2865–2866.
-
14
Kain KC, Noble MA, Freeman HJ, Barteluk RL, 1987. Epidemiology and clinical features associated with Blastocystis hominis infection. Diagn Microbiol Infect Dis 8 :235–244.
-
15
Kain KC, Ravdin JI, 1995. Galactose-specific adhesion mechanisms of Entamoeba histolytica: model for study of enteric pathogens. Methods Enzymol 253 :424–439.
-
16
Thompson RCA, Reynoldson JA, Mendis AHW, 1993. Giardia and giardiasis. Adv Parasitol 32 :71–160.
-
17
Walderich B, Bernauer S, Renner M, Knobloch J, Burchard GD, 1998. Cytopathic effects of Blastocystis hominis on Chinese hamster ovary (CHO) and adenocarcinoma HT 29 cell cultures. Trop Med Int Health 3 :385–390.
-
18
Carrascosa M, Martinez J, Perez-Castrillon JL, 1996. Hemorrhagic proctosigmoiditis and Blastocystis hominis infection. Ann Intern Med 15 :278–279.
-
19
Ghosh K, Ayyaril M, Nirmala V, 1998. Acute GVHD involving the gastrointestinal tract and infestation with Blastocystis hominis in a patient with chronic myeloid leukaemia following allogeneic bone marrow transplantation. Bone Marrow Transplant 22 :1115–1117.
-
20
Phillips BP, Zierdt CH, 1976. Pathogenic potential in human patients and in gnotobiotes. Exp Parasitol 39 :358–364.
-
21
Collins SM, 1994. Irritable bowel syndrome could be an inflammatory disorder. Eur J Gastroenterol Hepatol 6 :478–483.
| Past two years | Past Year | Past 30 Days | |
|---|---|---|---|
| Abstract Views | 21 | 21 | 6 |
| Full Text Views | 384 | 119 | 1 |
| PDF Downloads | 113 | 22 | 0 |