A comparison of two microsporidian parasites in enterocytes of AIDS patients with chronic diarrhea.

The Journal of protozoology Pub Date : 1991-11-01
A Cali, J M Orenstein, D P Kotler, R Owen
{"title":"A comparison of two microsporidian parasites in enterocytes of AIDS patients with chronic diarrhea.","authors":"A Cali,&nbsp;J M Orenstein,&nbsp;D P Kotler,&nbsp;R Owen","doi":"","DOIUrl":null,"url":null,"abstract":"<p><p>Enterocytozoon bieneusi was first described by electron microscopy in 1985 in intestinal biopsies from an AIDS patient. It has subsequently been observed in many AIDS patients with chronic diarrhea from the U.S.A., Africa, and Europe. Morphologically, this parasite meets the criteria for being a microsporidian but has unique features justifying the creation of a a new genus and family. It has organelles not seen in microsporida before, i.e. elongated nuclei, electron-lucent inclusions, electron-dense discs, and development of multiple polar tubules in a single cell prior to the final cytokinetic process producing many sporoblasts. However, it produces typical microsporidian spores. Recently, a second type of microsporidian has been observed in similar biopsies from an AIDS patient which resembles an Encephalitozoon except that it secretes a fine network of material in which the developing organisms become embedded. During sporogony, each cell appears to be in a separate chamber. These two parasites are morphologically and pathologically compared.</p>","PeriodicalId":22758,"journal":{"name":"The Journal of protozoology","volume":"38 6","pages":"96S-98S"},"PeriodicalIF":0.0000,"publicationDate":"1991-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"The Journal of protozoology","FirstCategoryId":"1085","ListUrlMain":"","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0

Abstract

Enterocytozoon bieneusi was first described by electron microscopy in 1985 in intestinal biopsies from an AIDS patient. It has subsequently been observed in many AIDS patients with chronic diarrhea from the U.S.A., Africa, and Europe. Morphologically, this parasite meets the criteria for being a microsporidian but has unique features justifying the creation of a a new genus and family. It has organelles not seen in microsporida before, i.e. elongated nuclei, electron-lucent inclusions, electron-dense discs, and development of multiple polar tubules in a single cell prior to the final cytokinetic process producing many sporoblasts. However, it produces typical microsporidian spores. Recently, a second type of microsporidian has been observed in similar biopsies from an AIDS patient which resembles an Encephalitozoon except that it secretes a fine network of material in which the developing organisms become embedded. During sporogony, each cell appears to be in a separate chamber. These two parasites are morphologically and pathologically compared.

分享 分享
微信好友 朋友圈 QQ好友 复制链接
本刊更多论文
艾滋病慢性腹泻患者肠细胞中两种微孢子虫的比较。
1985年,在一名艾滋病患者的肠道活检中,通过电子显微镜首次发现了双胞虫。随后,在美国、非洲和欧洲的许多慢性腹泻艾滋病患者中也观察到这种现象。在形态上,这种寄生虫符合小孢子虫的标准,但有独特的特征,证明了一个新的属和科的创建。它具有以前在小孢子虫中没有见过的细胞器,即细长的细胞核,电子发光的内含物,电子致密的圆盘,以及在产生许多孢子母细胞的最终细胞动力学过程之前在单个细胞中发育多极小管。然而,它产生典型的微孢子虫孢子。最近,在一名艾滋病患者的类似活组织检查中发现了第二种微孢子虫,它类似于一种脑囊虫,只是它分泌一种精细的网状物质,发育中的生物体就嵌入其中。在孢子形成过程中,每个细胞似乎都在一个单独的腔室中。这两种寄生虫在形态学和病理学上进行了比较。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 去求助
来源期刊
自引率
0.00%
发文量
0
期刊最新文献
Proliferation patterns of latent Pneumocystis carinii in rat organs during progressive stages of immunosuppression. 7th European Conference on Cell and Molecular Biology of Ciliates. Toledo, Spain, September 2-6, 1991. Abstracts. The Society of Protozoologists. 1991 Abstracts. John O. Corliss--ciliatologist extraordinaire. Calcium transport and compartment analysis of free and exchangeable calcium in Plasmodium falciparum-infected red blood cells.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
已复制链接
已复制链接
快去分享给好友吧!
我知道了
×
扫码分享
扫码分享
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1