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M94A2770.TXT
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1994-10-25
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Document 2770
DOCN M94A2770
TI Saliva levels of HIV-1 antibodies during seroconversion.
DT 9412
AU Sangare KA; Hofman L; Institute Pasteur de Cote D'Ivoire.
SO Int Conf AIDS. 1994 Aug 7-12;10(1):229 (abstract no. PB0345). Unique
Identifier : AIDSLINE ICA10/94369805
AB OBJECTIVE: In previous studies we, like many others, have shown that HIV
antibodies can be detected in saliva. However, since the IgG level in
saliva is approximately 400-1000 times less than that in serum, there
has been concern that HIV antibodies will not be detected in saliva as
soon as in serum. This study was undertaken to determine saliva levels
in HIV positive individuals during seroconversion. METHODS: From a
population at risk for HIV infection, 250 consenting adults were
determined to be negative by the following assays: Abbott Recombinant
HIV-1/HIV-2, 3rd generation; Enzygnost anti HIV-1/HIV-2; Vironostika
Mixt. All subjects were free to leave the study at any time. Once a week
saliva was collected from each subject with the Omni-SAL collector
(Saliva Diagnostic Systems, Inc.). The specimen was tested with Abbott
Test-PACK and Wellcozyme GACELISA on the day of collection. In addition
a dried blood spot was collected and assayed according to the procedure
in the Wellcozyme GACELISA protocol. If a positive was obtained with any
test, a blood sample was taken the same day or as soon as possible for a
Western Blot analysis. RESULTS: One individual had confirmed positive
saliva and dried blood spot specimens in the third week of the study.
Western Blots, run on serum samples obtained the next day and in the
following weeks for up to two months, showed a progressive increase in
the intensity and number of bands, starting with only p24 and gp160 and
by two months showing, in addition p17, p31, gp41, p51, p55, p66 and
gp120. No individuals had confirmed positive dried blood spot specimens
that were not positive by saliva. CONCLUSION: Our study shows that
saliva is as effective as a dried blood spot specimen in determining HIV
positivity in early seroconversion.
DE Adult Blotting, Western Cohort Studies Comparative Study
Enzyme-Linked Immunosorbent Assay Follow-Up Studies Human HIV
Antibodies/*ANALYSIS/BLOOD HIV Seropositivity/*DIAGNOSIS
HIV-1/*IMMUNOLOGY Reagent Kits, Diagnostic Risk Factors
Saliva/*IMMUNOLOGY Salivary Proteins/*ANALYSIS Specimen
Handling/INSTRUMENTATION DUPLICATE PUBLICATION MEETING ABSTRACT
SOURCE: National Library of Medicine. NOTICE: This material may be
protected by Copyright Law (Title 17, U.S.Code).