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M94A0691.TXT
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1994-10-21
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Document 0691
DOCN M94A0691
TI Zidovudine-resistant HIV-1 in primary infection.
DT 9412
AU Imrie A; Hurren L; Cunningham P; Vizzard J; Carr A; Gurusinghe A; Deacon
N; Penny R; Cooper DA; Centre for Immunology, St Vincents's Hospital.
SO Annu Conf Australas Soc HIV Med. 1993 Oct 28-30;5:36 (abstract no. SC4).
Unique Identifier : AIDSLINE ASHM5/94348964
AB AIM: To assess the prevalence of transmitted zidovudine-resistant HIV in
individuals who seroconverted after 1990. METHODS: HIV was isolated from
10 homosexual men with symptomatic primary HIV infection, and from their
sexual partners when possible. Isolates obtained within the first two
months following onset of symptoms were assessed for ZDV sensitivity
with a PBL assay. HIV RT from one donor-recipient pair was sequenced.
RESULTS: Isolates obtained within a mean of 16.5 (r8-32) days of onset
of symptoms demonstrated a mean ZDV IC50 of 0.008 (r0.001-0.041); IC50
of isolates from 3 sexual partners ranged from 0.001 to 0.08. Sequence
analysis of the HIV RT of one donor-recipient pair with IC50 values of
0.08 and 0.01 respectively showed a mutation at position 70 (Lys-Arg) in
the donor RT; the RT of his sexual partner showed a wild-type sequence.
CONCLUSION: HIV with reduced sensitivity to ZDV was isolated from a
homosexual man, but not from his seroconverting sexual partner.
Phenotypic and genotypic analysis of additional PHI isolates and
donor-recipient pairs will be presented.
DE Adult Drug Resistance, Microbial/GENETICS Homosexuality Human HIV
Seropositivity/*DRUG THERAPY/MICROBIOLOGY HIV-1/*DRUG EFFECTS/GENETICS
Male Mutation Reverse Transcriptase/ANTAGONISTS & INHIB/GENETICS
Sexual Partners Zidovudine/*THERAPEUTIC USE MEETING ABSTRACT
SOURCE: National Library of Medicine. NOTICE: This material may be
protected by Copyright Law (Title 17, U.S.Code).