Academic Journal
Relatedness Analyses of Histoplasma capsulatum Isolates from Mexican Patients with AIDS-Associated Histoplasmosis by Using Histoplasmin Electrophoretic Profiles and Randomly Amplified Polymorphic DNA Patterns
| العنوان: | Relatedness Analyses of Histoplasma capsulatum Isolates from Mexican Patients with AIDS-Associated Histoplasmosis by Using Histoplasmin Electrophoretic Profiles and Randomly Amplified Polymorphic DNA Patterns |
|---|---|
| المؤلفون: | Reyes-Montes, M. R., Bobadilla-Del Valle, M., Martínez-Rivera, M. A., Rodríguez-Arellanes, G., Maravilla, E., Sifuentes-Osornio, J., Taylor, M. L. |
| المصدر: | Journal of Clinical Microbiology ; volume 37, issue 5, page 1404-1408 ; ISSN 0095-1137 1098-660X |
| بيانات النشر: | American Society for Microbiology |
| سنة النشر: | 1999 |
| الوصف: | The present paper analyzes the histoplasmin electrophoretic profiles and the randomly amplified polymorphic DNA (RAPD) patterns of the fungus Histoplasma capsulatum isolated from Mexican patients with AIDS-associated histoplasmosis. Clinical isolates from Guatemala, Colombia, and Panama, as well as H. capsulatum isolates from different sources in nature, were also processed. All histoplasmin samples shared four antigenic fractions of 200, 49, 10.5, and 8.5 kDa in sodium dodecyl sulfate-polyacrylamide gel electrophoresis (SDS-PAGE). According to their percentage of relatedness, based on SDS-PAGE histoplasmin electrophoretic image analysis, H. capsulatum isolates were divided in two groups: group A contained all AIDS-associated isolates studied and two human reference strains from Mexican histoplasmosis patients without AIDS; group B included bat guano, infected bat, and cock excreta isolates from the State of Guerrero, Mexico, plus three human histoplasmosis strains from Guatemala, Panama, and Colombia. Polymorphic DNA patterns evaluated by RAPD-PCR showed three major bands of 4.4, 3.2, and 2.3 kb in most H. capsulatum isolates studied. Four groups were related by DNA polymorphisms: group I was formed by most of the AIDS-associated H. capsulatum isolates studied, one human histoplasmosis strain from Colombia, two human reference strains from Mexican patients without AIDS, and one human histoplasmosis strain from Guatemala. Group II consisted of only a single strain from Panama. Group III included three strains: one from a Mexican patient with AIDS and two isolated from nature in Guerrero (cock excreta and bat guano). The last, group IV, consisted of only one strain isolated from an infected bat, captured in Guerrero. A tight relationship between phenotypic and genotypic characterization was observed, and both analyses could be useful tools for typing H. capsulatum from different sources and geographic origins. |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| DOI: | 10.1128/jcm.37.5.1404-1408.1999 |
| DOI: | 10.1128/JCM.37.5.1404-1408.1999 |
| الاتاحة: | http://dx.doi.org/10.1128/jcm.37.5.1404-1408.1999 https://journals.asm.org/doi/pdf/10.1128/JCM.37.5.1404-1408.1999 |
| Rights: | https://journals.asm.org/non-commercial-tdm-license |
| رقم الانضمام: | edsbas.C14E1627 |
| قاعدة البيانات: | BASE |
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