Fedorko D P, Hijazi Y M
National Institutes of Health, Bethesda, Maryland 20892-1508, USA.
Emerg Infect Dis. 1996 Jul-Sep;2(3):183-91. doi: 10.3201/eid0203.960304.
Microsporidia are now recognized as important pathogens of AIDS patients; the ability of these parasites to cause disease in immunocompetent persons is still being elucidated. Improved diagnostic tests for microsporidial infection are continually being sought for establishing diagnosis in order to avoid laborious electron microscopy studies that require invasively acquired biopsy specimens. Modified trichrome or chemofluorescent stains are useful for detecting microsporidia in bodily fluids and stool specimens, but they do not allow for speciation of microsporidia. Polymerase chain reaction with specific primers will allow the detection and speciation of microsporidia in biopsy tissue, bodily fluids, and stool specimens.
微孢子虫现在被认为是艾滋病患者的重要病原体;这些寄生虫在免疫功能正常者中引发疾病的能力仍在研究之中。为了避免需要通过侵入性获取活检标本的繁琐电子显微镜研究,人们一直在寻求改进的微孢子虫感染诊断测试以进行确诊。改良的三色染色法或化学荧光染色法对于检测体液和粪便标本中的微孢子虫很有用,但它们无法对微孢子虫进行分类。使用特异性引物的聚合酶链反应能够检测活检组织、体液和粪便标本中的微孢子虫并对其进行分类。