Document 0901 DOCN M94A0901 TI Blood transfusion induced immunodeficiency and AIDS in haemophilia. DT 9412 AU Guerra A; Banco Central de Sangre, Mexico. SO Int Conf AIDS. 1994 Aug 7-12;10(2):255 (abstract no. PC0386). Unique Identifier : AIDSLINE ICA10/94371674 AB OBJECTIVE: To analize the immune status in the abscence and presence of HIV infection in haemophiliac patients and the rate of progression to AIDS in HIV-Positive Haemophiliac (H+HP) and No-Haemophiliac (H+NHP) Patients. METODE: Review of the reported immune status (both cell and humoral mediated immune responses) in haemophilia in abscence and presence of HIV infection and the rate of progression to AIDS in H+HP and H+NHP, reported elsewhere. RESULTS: There are several reports about impaired cell and humoral mediated immunity, evaluated by means of the dinitrochlorobenzene skin test, Fc dependent monocyte phagocytic function inhibition, peripheral blood mononuclear cell proliferation, capacity to produce IL-2 and T-cells subsets, between others, in haemophilia in abscence of HIV infection. These changes are in association with the consumption of clotting factor concentrates and its purity. With this baseline blood transfusion induced immunodeficiency, the rate of progression to AIDS in H+HP has been reported between 20-5% compared with a 50% rate in H+NHP in a ten years follow-up basis. DISCUSSION AND CONCLUSIONS: H+HP have a baseline blood transfusion induced immunodeficiency that is not an adverse factor to progression to AIDS, as expected, when compared with the rate of progression in H+NHP. These data suggest that this baseline immunodeficiency favor a slow progression to AIDS, maybe by means of the inhibition of the phagocytic activity of macrophages and the activation of CD4+ T cells necessary for HIV replication. DE Acquired Immunodeficiency Syndrome/*ETIOLOGY Blood Transfusion/*ADVERSE EFFECTS Follow-Up Studies Hemophilia/COMPLICATIONS/*IMMUNOLOGY Human HIV Infections/*TRANSMISSION *Immune Tolerance MEETING ABSTRACT SOURCE: National Library of Medicine. NOTICE: This material may be protected by Copyright Law (Title 17, U.S.Code).