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M94A3063.TXT
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1994-10-25
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Document 3063
DOCN M94A3063
TI Anti-p24 titer: a marker for AIDS in Cuban HIV seropositives.
DT 9412
AU Benitez J; Rivero J; CIGB, Havana, Cuba.
SO Int Conf AIDS. 1994 Aug 7-12;10(1):162 (abstract no. PB0076). Unique
Identifier : AIDSLINE ICA10/94369512
AB OBJECTIVE: To evaluate the use of anti-p24 antibody titer as a marker
for the prognosis of AIDS in Cuban HIV-1 seropositives. METHODS: An
ELISA for anti-p24 titration, based on recombinant HIV-1 p24, which uses
a protein-A-peroxidase conjugate was used. Serum samples were 1:2
serially diluted from 1:20 to 1:2560. Both the titer and the slope of
the dilution curve were calculated. Anti-p24 antibody titers were
quantified for 852 samples from 234 HIV infected individuals
representative of all the stages of the infection, and in the
longitudinal study, serum samples from 135 patients were sequentially
evaluated for 36 months. RESULTS AND CONCLUSIONS: Titers lower than
1:160 were obtained for 84.8% of the AIDS patients, and statistical
significant differences were found between AIDS cases and group II (p <
0.00006) and group III cases (p < 0.00003). In 36 group II or III
patients, a decrease of the anti-p24 titer was observed prior to or in
correlation with disease progression. We conclude that (1) p24 low
responders are at higher risk for AIDS than high responders. (2)
Anti-p24 titer is an accurate marker for the progression to AIDS, and
represent an economical alternative for the follow up of HIV
seropositives in developing countries.
DE Acquired Immunodeficiency Syndrome/CLASSIFICATION/*DIAGNOSIS/
IMMUNOLOGY AIDS Serodiagnosis/ECONOMICS Cost-Benefit Analysis Cuba
*Developing Countries Enzyme-Linked Immunosorbent Assay/ECONOMICS
Follow-Up Studies Human HIV Antibodies/*BLOOD HIV Core Protein
p24/*IMMUNOLOGY HIV Seropositivity/CLASSIFICATION/*DIAGNOSIS/IMMUNOLOGY
HIV-1/*IMMUNOLOGY Longitudinal Studies MEETING ABSTRACT
SOURCE: National Library of Medicine. NOTICE: This material may be
protected by Copyright Law (Title 17, U.S.Code).