| Literature DB >> 11170992 |
W Heneine1, W M Switzer, J M Soucie, B L Evatt, V Shanmugam, G V Rosales, A Matthews, P Sandstrom, T M Folks.
Abstract
Since 1984, unheated porcine clotting factor VIII (Hyate:C) has been used to treat severe bleeding episodes in persons with hemophilia who have antibodies to human clotting factor. We document the presence of porcine endogenous retrovirus (PERV) in plasma samples of pigs and in clinical lots of Hyate:C. Both gag and pol PERV RNA sequences were detected by reverse-transcriptase (RT) polymerase chain reaction in 13 of 13 lots of Hyate:C tested. Among 10 of these lots, RT activity also was detected, which confirms the presence of retroviral particles. To assess the transmission of PERV to Hyate:C recipients, we tested serum specimens from 88 recipients of Hyate:C and 23 noninfused control subjects for anti-PERV antibodies by using a Western blot assay. None of the samples was positive. Our data document that PERV particles are a common contaminant of Hyate:C products and suggest that the risk of PERV transmission from these percutaneous exposures is very low.Entities:
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Year: 2001 PMID： 11170992 DOI： 10.1086/318540
Source DB: PubMed Journal: J Infect Dis ISSN： 0022-1899 Impact factor: 5.226