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Revista Cubana de Medicina Tropical
versión On-line ISSN 1561-3054
Resumen
DE ARMAS RODRIGUEZ, Yaxsier; CAPO DE PAZ, Virginia y XIOMARA LOPEZ FUENTES, Ledy. Molecular detection of Pneumocystis jiroveci in paraffin-embedded tissue from persons who died from HIV/AIDS. Rev Cubana Med Trop [online]. 2008, vol.60, n.3, pp. 0-0. ISSN 1561-3054.
BACKGROUND: Pneumocystis jiroveci is one of the most frequent opportunistic pathogens affecting the patients with the acquired immunodeficiency syndrome. OBJECTIVE: to detect P. jiroveci in paraffin-embedded tissues by means of the polymerase chain reaction. METHODS: six paraffin blocks from 3 dead persons who died from AIDS and P. jiroveci pneumonia. Routine and special staining of the pathological anatomy together with the PCR for diagnosis were performed. RESULTS: the PCR identified this infective agent in the studied paraffin blocks. It was possible to detect P. jiroveci up to 1:100 dilution of the genetic material extracted from each block. CONCLUSIONS: the availability of molecular methods to identify P. jiroveci in paraffined tissue opens up the road to determination of genotypes involved in the Cuban AIDS pandemics and will allow ascertaining whether the infective strain, in fatal cases, is resistant to the drugs that are being used.
Palabras clave : Pneumocystis jiroveci; polymerase chain reaction; paraffin; AIDS; HIV.