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M9550047.TXT
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1995-03-04
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Document 0047
DOCN M9550047
TI Comparative study of single and nested PCR for the detection of proviral
HIV2 DNA.
DT 9505
AU Loussert-Ajaka I; Simon F; Farfara I; Houhou N; Couto-Fernandez J; Dazza
MC; Brun-Vezinet F; Laboratoire de Virologie, Hopital Bichat-Claude
Bernard, Paris.
SO Res Virol. 1994 Sep-Oct;145(5):337-42. Unique Identifier : AIDSLINE
MED/95140936
AB We have tested seven pairs of primers for the detection of HIV2 DNA by
single PCR in positive cultures from 21 infected patients. Four of these
primer pairs were then used in a comparative study of single and nested
PCR for the detection of HIV2 in fresh lymphocytes from 33 patients
infected by the virus. HIV2 DNA was detected in 17 of the 33 patients
(51.5%) by single PCR and 29/33 (88%) by nested PCR. All the patients
negative in both nested and single PCR were asymptomatic and had CD4+
lymphocyte counts of at least 500 x 10(6)/l. This lack of PCR
sensitivity for the detection of proviral HIV2 DNA in fresh lymphocytes
cannot be totally attributed to genetic variability and may be related
to a low viral load in asymptomatic HIV2-infected patients.
DE Africa, Western/EPIDEMIOLOGY CD4 Lymphocyte Count DNA Primers DNA,
Viral/*BLOOD HIV Seropositivity/EPIDEMIOLOGY/GENETICS/*VIROLOGY
HIV-1/GENETICS HIV-2/GENETICS/*ISOLATION & PURIF Leukocytes,
Mononuclear/*VIROLOGY Polymerase Chain Reaction/*METHODS
Proviruses/GENETICS/*ISOLATION & PURIF Sensitivity and Specificity
JOURNAL ARTICLE
SOURCE: National Library of Medicine. NOTICE: This material may be
protected by Copyright Law (Title 17, U.S.Code).