title: Lack of association between human immunodeficiency virus type 1 antibody in cervicovaginal lavage fluid and plasma and perinatal transmission, in Thailand.
abstract: To determine the association between human immunodeficiency virus type 1 (HIV)-specific antibody and RNA levels in cervicovaginal lavage (CVL) samples and plasma, zidovudine treatment, and perinatal transmission, HIV subtype E gp160-specific IgG and IgA were serially measured in a subset of 74 HIV-infected women in a placebo-controlled trial of zidovudine, beginning at 36 weeks of gestation. HIV IgG was detected in 100% of plasma and 97% of CVL samples; HIV IgA was consistently detected in 62% of plasma and 31% of CVL samples. Antibody titers in CVL samples correlated better with the RNA level in CVL samples than with plasma antibody titers. Zidovudine did not affect antibody titers. Perinatal HIV transmission was not associated with antibody in CVL samples or plasma. HIV-specific antibody is present in the cervicovaginal canal of HIV-infected pregnant women; its correlation with the RNA level in CVL fluid suggests local antibody production. However, there was no evidence that these antibodies protected against perinatal HIV transmission.
authors.affiliation: HIV/AIDS Collaboration, Ministry of Public Health, Nonthaburi 11000, Thailand. rfc3@cdc.gov
authors.forename: R
authors.initials: R
authors.lastname: Chuachoowong
authors.forename: N
authors.initials: N
authors.lastname: Shaffer
authors.forename: T C
authors.initials: TC
authors.lastname: VanCott
authors.forename: P
authors.initials: P
authors.lastname: Chaisilwattana
authors.forename: W
authors.initials: W
authors.lastname: Siriwasin
authors.forename: N
authors.initials: N
authors.lastname: Waranawat
authors.forename: N
authors.initials: N
authors.lastname: Vanprapar
authors.forename: N L
authors.initials: NL
authors.lastname: Young
authors.forename: T D
authors.initials: TD
authors.lastname: Mastro
authors.forename: J S
authors.initials: JS
authors.lastname: Lambert
authors.forename: M L
authors.initials: ML
authors.lastname: Robb
mesh_terms: D000163:Acquired Immunodeficiency Syndrome / Q000188:drug therapy / Q000635:transmission*; D002584:Cervix Uteri / Q000821:virology*; D005260:Female; D015483:HIV Antibodies / Q000032:analysis* / Q000097:blood; D019302:HIV Envelope Protein gp160 / Q000276:immunology; D015497:HIV-1 / Q000276:immunology*; D006801:Humans; D018445:Infectious Disease Transmission, Vertical; D011247:Pregnancy; D012367:RNA, Viral / Q000032:analysis; D007507:Therapeutic Irrigation; D014621:Vagina / Q000821:virology*; D015215:Zidovudine / Q000627:therapeutic use
chemical_list: D015483:HIV Antibodies; D019302:HIV Envelope Protein gp160; D012367:RNA, Viral; D015215:Zidovudine