title: Intestinal microsporidiosis in human immunodeficiency virus-infected patients with chronic unexplained diarrhea: prevalence and clinical and biologic features.
abstract: Eighteen patients infected with human immunodeficiency virus and with chronic unexplained diarrhea were prospectively studied to investigate the prevalence and clinical and biologic features of intestinal microsporidiosis. All patients underwent extensive evaluation for bacterial, viral, and parasitic pathogens. Enterocytozoon bieneusi was found in 9 patients (50%; 95% confidence interval, 27-73) in stools and duodenal and jejunal biopsies. In 8 patients, it was the sole pathogen found. Other pathogens were also isolated from the intestinal tracts of 4 patients, but diarrhea remained unexplained in 6. Patients with intestinal microsporidiosis had significantly lower mean Karnofsky scores (69.4 vs. 85.5, P = .009), CD4 cell counts (18.6 vs. 209.8/microL, P = .02), and D-xylose absorption tests (0.13 vs. 0.36 g/L, P < .001) than did patients without intestinal microsporidiosis. Intestinal microsporidiosis appears to be a frequent cause of unexplained chronic diarrhea in patients with AIDS and is associated with diminished D-xylose absorption.
authors.affiliation: Division of Infectious Diseases, Hôpital Saint-Louis, Paris, France.
authors.forename: J M
authors.initials: JM
authors.lastname: Molina
authors.forename: C
authors.initials: C
authors.lastname: Sarfati
authors.forename: B
authors.initials: B
authors.lastname: Beauvais
authors.forename: M
authors.initials: M
authors.lastname: Lémann
authors.forename: A
authors.initials: A
authors.lastname: Lesourd
authors.forename: F
authors.initials: F
authors.lastname: Ferchal
authors.forename: I
authors.initials: I
authors.lastname: Casin
authors.forename: P
authors.initials: P
authors.lastname: Lagrange
authors.forename: R
authors.initials: R
authors.lastname: Modigliani
authors.forename: F
authors.initials: F
authors.lastname: Derouin
mesh_terms: D017088:AIDS-Related Opportunistic Infections / Q000175:diagnosis / Q000453:epidemiology*; D000328:Adult; D000818:Animals; D002908:Chronic Disease; D003967:Diarrhea / Q000209:etiology*; D005260:Female; D006801:Humans; D007411:Intestinal Diseases, Parasitic / Q000175:diagnosis / Q000453:epidemiology*; D008297:Male; D016816:Microsporida; D016881:Microsporidiosis / Q000175:diagnosis / Q000453:epidemiology*; D008875:Middle Aged; D015995:Prevalence; D011446:Prospective Studies