Gene/Protein Disease Symptom Drug Enzyme Compound
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Query: UMLS:C0040586 (tracheobronchitis)
 449 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Microsporidia are ubiquitous in nature. Several clinical syndromes have been associated with microsporidiosis, especially in HIV-infected individuals, and include enteropathy, keratoconjunctivitis, sinusitis, tracheobronchitis, encephalitis, interstitial nephritis, hepatitis, cholecystitis, osteomyelitis, and myositis. Diarrhea and malabsorption are the most common clinical problems. Enterocytozoon bieneusi is the most common microsporidial cause of intestinal disease. A second species, Encephalitozoon intestinalis (originally named Septata intestinalis) is associated with disseminated as well as intestinal disease. Microsporidiosis has been seen worldwide, and is recognized as a frequent enteric infection in patients with AIDS. The pathogenesis of intestinal disease is related to excess death of enterocytes as a result of cellular infection. Clinically, microsporidiosis most often presents with diarrhea and weight loss as a result of small intestinal injury and malabsorption. However, microsporidia have been detected in virtually all organs, and may provoke symptoms related to their specific localization. The diagnosis of microsporidiosis is made histologically, either from tissue biopsies or secretions. While transmission electron microscopy was required for diagnosis in the past, special stains and light microscopy, as well as immunohistochemical and molecular techniques are capable of providing a firm diagnosis. Therapeutic options are limited. Enc. intestinalis responds well to albendazole, while no antiparasitic therapy has documented efficacy in Ent. bieneusi infections.
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PMID:Clinical syndromes associated with microsporidiosis. 955 78

Encephalitozoon hellem is a unicellular, obligate intracellular microsporidian species detected and isolated in HIV-infected patients presenting with keratoconjunctivitis, sinusitis, tracheobronchitis, nephritis, cystitis, and disseminated infection. A total of 24 monoclonal antibodies were produced against E. hellem and characterized. The monoclonal antibodies were of the immunoglobulin (Ig) G and Ig M subclasses, and, when incorporated into indirect immunofluorescence and immunoblotting assays, reacted against 13 isolates of E. hellem originating from three geographic regions. These monoclonal antibodies did not react with one strain each of either Encephalitozoon intestinalis or Encephalitozoon cuniculi, demonstrating their specificity. Two monoclonal antibodies reacted with all karyotype B-E. hellem isolates but did not react with karyotype A-isolates from North America and the Netherlands, thus demonstrating antigenic diversity among E. hellem isolates. These results add to the increasing evidence for diversity among E. hellem, which therefore may be reclassified into subspecies.
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PMID:Antigenic diversity of Encephalitozoon hellem demonstrated by subspecies-specific monoclonal antibodies. 1212 Sep 90