Identification of Enterocytozoon bieneusi spores in respiratory samples from an AIDS patient with a 2-year history of intestinal microsporidiosis

被引:56
作者
delAguila, C
LopezVelez, R
Fenoy, S
Turrientes, C
Cobo, J
Navajas, R
Visvesvara, GS
Croppo, GP
DaSilva, AJ
Pieniazek, NJ
机构
[1] UNIV SAN PABLO CEU,FAC CIENCIAS EXPT & TECN,DEPT BIOL,SECC PARASITOL,MADRID,SPAIN
[2] HOSP RAMON Y CAJAL,E-28034 MADRID,SPAIN
[3] CTR DIS CONTROL & PREVENT,NATL CTR INFECT DIS,DIV PARASIT DIS,ATLANTA,GA
关键词
D O I
10.1128/JCM.35.7.1862-1866.1997
中图分类号
Q93 [微生物学];
学科分类号
071005 ; 100705 ;
摘要
Enterocytozoon bieneusi, a microsporidian parasite, has been recognized since 1985 as an agent of intestinal microsporidiosis leading to malabsorption syndrome, diarrhea, and weight loss in AIDS patients, Recently, however, we have identified E. bieneusi spores in the sputum, bronchoalveolar lavage, and stool samples of an AIDS patient with a 2-year history of intestinal microsporidiosis. The spores were characterized by Weber's chromotrope-based staining, immunofluorescence tests, and PCR, No microsporidia were detected in urine samples by the same techniques. PCR was performed with DNAs purified from specimens with E. bieneusi-, Encephalitozoon cuniculi-, Encephalitozoon hellem-, and Encephalitozoon (Septata) intestinalis-specific primers. Treatment with albendazole and loperamide resulted in an improvement of intestinal symptoms, without eradication of the parasite. To our knowledge, this is the second report of the identification of E. bieneusi spores in respiratory and enteric samples obtained from an AIDS patient. Although no pulmonary pathology could be established in either of these cases, it is now clear that E. bieneusi is capable of colonizing the respiratory tract and it is suggested that investigators should be aware of the possibility of finding E. bieneusi spores in respiratory secretions.
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页码:1862 / 1866
页数:5
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