Document 3321 DOCN M94A3321 TI Unintegrated HIV-specific DNA in plasma of infected individuals. DT 9412 AU Nandi J; Bhavalkar V; Kamat H; Banerjee K; National Inst. of Virology, Pune, India. SO Int Conf AIDS. 1994 Aug 7-12;10(1):102 (abstract no. PA0027). Unique Identifier : AIDSLINE ICA10/94369254 AB OBJECTIVE: The study was undertaken to detect HIV-specific DNA in plasma of infected individuals and compare it with the other nucleic acid markers of the virus i.e. HIV-specific DNA in PBL as the provirus and HIV-specific RNA, in the plasma of infected persons. METHODS: Blood samples were collected from asymptomatic, seropositive persons with risk behaviour of HIV-transmission, patients of AIDS and voluntary donors with no risk behaviour as control. All samples were first screened serologically and then subjected to PCR using HIV-specific primers from pol region. RESULTS: The study shows presence of HIV-specific DNA in the plasma of asymptomatic, seropositive persons as well as in plasma of AIDS patients. At the same time point, the PCR signals with DNA extracted from PBL (representing integrated proviral DNA) were either weak or negative. The PCR signals obtained when RNA was extracted from plasma of the same individuals and subjected to RT-PCR were more consistent than those of PBL-DNA-PCR. DNA extracted from plasma of AIDS patients gave positive signals with 32p labeled full length cloned HIV-DNA. DISCUSSION & CONCLUSION: The above results suggest that HIV probably also replicates through an alternative pathway of unintegrated DNA (J. Nandi & K. Banerjee, Med. Hyp. 40: 1-7, 1993). The plasma HIV-DNA can be used in early diagnosis and monitoring therapy in HIV infection. DE Biological Markers/BLOOD DNA Primers/GENETICS DNA, Viral/*BLOOD/GENETICS Genes, pol Human HIV/GENETICS/*ISOLATION & PURIF/PHYSIOLOGY HIV Infections/DIAGNOSIS/*MICROBIOLOGY Polymerase Chain Reaction Proviruses/GENETICS/ISOLATION & PURIF RNA, Viral/BLOOD/GENETICS Virus Integration Virus Replication MEETING ABSTRACT SOURCE: National Library of Medicine. NOTICE: This material may be protected by Copyright Law (Title 17, U.S.Code).