P. carinii

P. carinii - Pneumocystis carinii Deadly AIDS Opportunist...

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Pneumocystis Pneumocystis carinii carinii Deadly AIDS Opportunist
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Pneumocystis carinii pneumonitis (PCP) is a common opportunistic disease that occurs almost exclusively in persons who have profound immunodeficiency. PCP was and still is the most common life- threatening opportunistic infection occurring in patients with HIV disease.
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The taxonomy of P carinii has not been established. It is either a protozoan or a fungus. Recent studies show P carinii more closely resemble fungi than protozoa. rRNA sequences thymidylate synthase dihydrofolate reductase beta tubulin mitochondrial DNA chitin in the cell wall O E Eriksson has a treatise which places P carinii in a new family, Pneumocystidaceae , and in a new order, Pneumocystidales (Ascomycota).
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The mode of replication of P carinii has not been established. However, the stages in its life cycle have been characterized. Sporozoites excyst through breaks in the cyst wall and then are termed trophozoites. The means by which the trophozoite form progresses to the cyst phase is not known.
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The portal of entry for P carinii has not been firmly established; however, because with rare exceptions the organism has been found only in
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This note was uploaded on 01/18/2012 for the course MCB 2010C taught by Professor Sofronioagustin during the Fall '06 term at Valencia.

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P. carinii - Pneumocystis carinii Deadly AIDS Opportunist...

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