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M9620988.TXT
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1996-02-26
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Document 0988
DOCN M9620988
TI Diagnosis of HIV infection from bloodstains by PCR. A further marker for
identification.
DT 9602
AU Giorgetti R; Rassu M; Tagliabracci A; Franchin E; Palu G; Ferrara SD;
Istituto di Medicina Legale dell'Universita di Padova, Italy.
SO Int J Legal Med. 1995;107(6):296-300. Unique Identifier : AIDSLINE
MED/96022709
AB The forensic usefulness of the detection of HIV infection in bloodstains
is linked to the increasing spread of HIV infection and the consequent
rise in the number of forensic cases involving HIV-positive subjects.
This study was designed to detect HIV infection in bloodstains of
various ages obtained from HIV-positive patients treated with zidovudine
(3'-azido-3'-deoxythymidine, AZT) using PCR methods. Of the 3 kinds of
extraction and amplification methods checked, only a nested PCR method
for the amplification of a sequence located in the HIV Reverse
Transcriptase (RT) region was successful. This method, involving 2
amplification steps (1: fragment of 768 bp; 2: codons 41-67-70-215-219),
encompasses the mutations commonly observed during AZT therapy and
overcomes the limitations inherent in serological testing. The
discriminatory power of the method can detect specific mutation patterns
in the RT gene linked to drug resistance and compares the specific
pattern of the blood-stain with fresh blood or other specimens from the
subject in question.
DE Antiviral Agents/THERAPEUTIC USE Base Sequence Biological Markers
*Blood Stains DNA, Viral/*GENETICS Forensic Medicine Human HIV
Infections/*DIAGNOSIS/DRUG THERAPY Molecular Sequence Data
Mutation/DRUG EFFECTS Polymerase Chain Reaction/METHODS
Zidovudine/THERAPEUTIC USE CLINICAL TRIAL JOURNAL ARTICLE
SOURCE: National Library of Medicine. NOTICE: This material may be
protected by Copyright Law (Title 17, U.S.Code).