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1994-10-25
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Document 3275
DOCN M94A3275
TI HIV-1 V3-loop antibodies and it's association with clinical status in
Nairobi.
DT 9412
AU Songok M; Tukei P; Mulaa FJ; Kenya Medical Research Institute, Nairobi.
SO Int Conf AIDS. 1994 Aug 7-12;10(1):113 (abstract no. PA0070). Unique
Identifier : AIDSLINE ICA10/94369300
AB In our bid to determine the HIV-1 variants in transmission in Nairobi
and their association with clinical status and infectivity, we screened
by ELISA two hundred and seven (207) confirmed HIV positive patients
visiting our HIV/AIDS clinic in Nairobi between June 1993 and January
1994. We used a panel of HIV-1 V3 loop peptides (ANRS, France) derived
from seven isolates.: MN,HXB2,SC,Z6,Z2,ELI and CDC4. Test samples were
obtained from blood donors (42), high school students (53) Patients with
diarrhoea (26) herpes Zoster (16) oral thrush (11) lympadenopathy (12)
PTB (19) and weight loss (28). 21.5% had antibodies against the MN
strain; 19.1% had against Z2 strain while reaction against the HXB2
strain was observed in 17.2%. SC,CDC4, Z6, and ELI had prevalence of
11.5%, 6.2%, 5.3% and 3.8% respectively. 14.8% of the tested sera showed
no reaction to any of the used peptides. Anti-HXB2 antibodies were
strongly and significantly associated with an asymptomatic state (P >
0.01). We infer that both North American (MN,HXB2) and subsaharan
isolates (Z2) are highly prevalent in Nairobi. There is evidence that
particular variants are associated with asymptomatic state and needs
further investigation. Thirdly, the use of synthetic peptides
representing the V3 epitope may be an easier and sensitive way in the
broad determination of antigenic diversity.
DE Human HIV Antibodies/*BLOOD HIV Envelope Protein
gp120/*GENETICS/*IMMUNOLOGY HIV
Infections/EPIDEMIOLOGY/*IMMUNOLOGY/MICROBIOLOGY
HIV-1/*GENETICS/*IMMUNOLOGY/ISOLATION & PURIF Kenya/EPIDEMIOLOGY
Peptide Fragments/*GENETICS/*IMMUNOLOGY Peptides/IMMUNOLOGY Species
Specificity Variation (Genetics) MEETING ABSTRACT
SOURCE: National Library of Medicine. NOTICE: This material may be
protected by Copyright Law (Title 17, U.S.Code).