Document 0186 DOCN M9550186 TI Predictive markers for mother-to-child transmission of HIV-1 in Dar es Salaam, Tanzania. DT 9505 AU Bredberg-Raden U; Urassa W; Urassa E; Lyamuya E; Msemo G; Kawo G; Kazimoto T; Massawe A; Grankvist O; Mbena E; et al; Department of Immunology, Swedish Institute for Infectious; Disease Control, Stockholm. SO J Acquir Immune Defic Syndr Hum Retrovirol. 1995 Feb 1;8(2):182-7. Unique Identifier : AIDSLINE MED/95135996 AB The aim of this study was to determine immunological factors associated with increased risk of mother-to-child transmission of HIV-1 that could be used as predictive markers in Tanzanian women. One hundred and thirty-eight HIV-1-seropositive and 117-seronegative mothers and their newborns were recruited at delivery and followed up at Muhimbili Medical Centre in Dar es Salaam, Tanzania. Blood specimens from the mothers were analyzed for HIV-1 p24 antigen, beta 2-microglobulin (B2M), T-lymphocyte subsets, and presence of viral DNA in blood mononuclear cells by the polymerase chain reaction (PCR). Among 138 seropositive mothers, 30 (21.7%) had transmitted HIV-1 to their children, as shown by a positive PCR in the child. The vertical transmission rate was significantly higher in women with a percentage of CD4 lymphocytes < or = 20 (eight of 24, 33%) or a level of B2M > or = 2 mg/L (21 of 62, 34%) than in women with a higher percentage of CD4 lymphocytes (10 of 73, 14%) or a lower level of B2M (eight of 57, 14%) (p = 0.034 and 0.018, respectively). In eight of 18 (44%) transmitting mothers the percentage of CD4 lymphocytes was < or = 20, and in 21 of 29 (72%) transmitting mothers the B2M level was > or = 2 mg/L. In women with both a low percentage of CD4 lymphocytes (< or = 20) and a high level of B2M (> or = 2 mg/L), the vertical transmission rate was 54%.(ABSTRACT TRUNCATED AT 250 WORDS) DE beta 2-Microglobulin/ANALYSIS Biological Markers *Disease Transmission, Vertical Enzyme-Linked Immunosorbent Assay Female Human HIV Core Protein p24/BLOOD HIV Seropositivity/EPIDEMIOLOGY/*TRANSMISSION *HIV-1 Infant Infant, Newborn Polymerase Chain Reaction Pregnancy Support, Non-U.S. Gov't T-Lymphocyte Subsets Tanzania JOURNAL ARTICLE SOURCE: National Library of Medicine. NOTICE: This material may be protected by Copyright Law (Title 17, U.S.Code).