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

Author:

del Aguila C1,Lopez-Velez R1,Fenoy S1,Turrientes C1,Cobo J1,Navajas R1,Visvesvara G S1,Croppo G P1,Da Silva A J1,Pieniazek N J1

Affiliation:

1. Departamento de Biología, Facultad de Ciencias Experimentales y Técnicas, Universidad San Pablo CEU, Madrid, Spain.

Abstract

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.

Publisher

American Society for Microbiology

Subject

Microbiology (medical)

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3