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1996-02-26
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Document 0480
DOCN M9620480
TI [Prior enrichment of HIV-DNA with probe-DNA particles for an efficient
PCR diagnosis]
DT 9602
AU Fan K; Tano H; Kitajima M; Tamatsukuri S; Furuichi Y; Hayashi T; Imai M;
Japan Synthetic Rubber Co., Ltd. Tsukuba Research Laboratory.
SO Kansenshogaku Zasshi. 1995 Sep;69(9):957-62. Unique Identifier :
AIDSLINE MED/96056823
AB PCR mediated detection of HIV-DNA has been widely used. However,
compared with traditional immunological diagnoses, the extraction of DNA
is a laborious and time consuming step. We have developed a procedure
for the efficient isolation and concentration of HIV-DNA from cell
lysates. We report here a novel method by one can recover HIV-DNA in a
small volume (approximately 50 microliters) of solution from a large
volume of crude cell lysate which contains as few as several copies. The
method uses the specific hybridization of HIV-DNA to HIV probe-DNA
particles. This prior enrichment augmented the sensitivity in the
detection of HIV-DNA by PCR, and allows us to make a diagnosis even if
the specimen contained an extremely low copy number of HIV-DNA molecules
in a large volume, which would have otherwise resulted in false-negative
data with the conventional extraction method. The method also enables
the examination of 100 individual blood specimens in a combined form.
Thus, the application of the present enrichment procedure with HIV
probe-DNA particles should reduce the labor and cost of HIV diagnosis,
since the HIV positive samples represent a very minor group of people
among specimens subjected to clinical laboratory tests, and
particularly, among blood samples voluntarily donated to be used for
transfusions.
DE Base Sequence Centrifugation DNA Primers *DNA Probes DNA,
Viral/*ANALYSIS/ISOLATION & PURIF English Abstract Human
HIV/*GENETICS HIV Infections/DIAGNOSIS Molecular Sequence Data
Polymerase Chain Reaction JOURNAL ARTICLE
SOURCE: National Library of Medicine. NOTICE: This material may be
protected by Copyright Law (Title 17, U.S.Code).