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- W2101941648 abstract "Hemos realizado un estudio longitudinal durante tres años para valorar la prevalencia, la microbiología y los patrones de sensibilidad in vitro a los antifúngicos de los aislamientos de levaduras que colonizaban o infectaban la cavidad oral de 111 pacientes mexicanos con infección por VIH (51 adultos y 60 niños) y de 201 personas sanas no infectadas por el VIH (109 adultos, 92 niños). Candida albicans fue la especie más frecuentemente aislada. Setenta y uno de los 85 aislamientos de personas colonizadas eran C. albicans (83,5%); veintisiete de estos aislamientos procedían de niños con infección por VIH y 44 se aislaron de personas no infectadas por VIH. Sesenta y dos aislamientos de C. albicans pertenecían al serotipo A siendo el serotipo más prevalente. Se aislaron especies no C. albicans (Candida glabrata, Candida tropicalis, Candida parapsilosis y Saccharomyces cerevisiae) en el 16,5% de los pacientes colonizados y en el 38,5% de los pacientes con candidiasis o enfermedades asociadas a Candida. Hubo nueve episodios de infección o colonización mixta. En el caso de los pacientes infectados por VIH o con sida, la colonización por levaduras no estaba asociada con el número de CD4+ o la carga viral; sin embargo, el tratamiento anti-retroviral de alta actividad (HAART) reducía la prevalencia de candidiasis oral. La mayoría de los pacientes portadores de levaduras, estaban colonizados o infectados por cepas sensibles a fluconazol. Sin embargo, un 10,8% de las levaduras eran resistentes a uno o más antifúngicos azólicos y un 29% mostraban una sensibilidad intermedia. Por el contrario, la 5-fluorocitosina fue muy activa contra todos los aislamientos estudiados y la anfotericina B lo fue contra el 97,9% de éstos. We have conducted a longitudinal study over a 3-year period to address the point prevalence, microbiological characteristics and antifungal susceptibility patterns of yeast isolates colonizing or infecting the oral cavities of 111 HIVinfected (51 adults, 60 children) and 201 non HIV-infected (109 adults, 92 children) Mexican persons. Regarding the epidemiology of oral candidiasis, Candida albicans was the most frequent species isolated. Seventy-one out of 85 isolates from colonized persons were C. albicans (83.5%), 27 isolates of them were from HIV-infected children and 44 from non HIV-infected patients. Sixtytwo isolates belonged to serotype A which was the most prevalent serotype of C. albicans. Non-albicans species (Candida glabrata, Candida tropicalis and Candida parapsilosis, and Saccharomyces cerevisiae) were isolated from 16.5% of colonized patients and from 38.5% patients with candidiasis or Candidarelated lesions. There were nine episodes of infection or colonization by at least 2 different yeast species. In the case of HIV/AIDS patients, it was determined that yeast carriage was not associated with the number of CD4+ cells or the viral load, but HAART reduced the prevalence of oral candidiasis. Overall, most patients harbored strains in vitro susceptible to fluconazole, however 10.8% of the yeasts were resistant to one or more azole antifungal agents and 29% were intermediate susceptible to them. On the contrary, 5-fluorocytosine was very active against all isolates tested, and amphotericin B was active against 97.9% of them." @default.
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- W2101941648 date "2005-06-01" @default.
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- W2101941648 title "Prevalencia, microbiología y patrones de sensibilidad a los antifúngicos de los aislamientos orales de Candida que colonizaban o infectaban a pacientes mexicanos con infección por VIH o sida y a personas sanas" @default.
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- W2101941648 doi "https://doi.org/10.1016/s1130-1406(05)70014-0" @default.
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