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  • Title: CSF follow-up in HIV-1 infection: intrathecal production of HIV-specific and unspecific IGG, and beta-2-microglobulin increase with duration of HIV-1 infection.
    Author: Elovaara I, Nykyri E, Poutiainen E, Hokkanen L, Raininko R, Suni J.
    Journal: Acta Neurol Scand; 1993 May; 87(5):388-96. PubMed ID: 8333244.
    Abstract:
    Ninety-nine sequential cerebrospinal fluid (CSF) samples from 28 human immunodeficiency virus-1 (HIV-1)-infected patients were analyzed during the follow-up of 9 months to 4 years. Intrathecal synthesis of HIV-antibodies and IgG (p < 0.01), and the levels of beta-2-microglobulin (beta 2m) in the CSF (p < 0.05) and serum (p < 0.01) increased with duration of HIV-1 infection. No effect of duration of HIV-1 infection was observed on the individual CSF white cell counts and the levels of blood-brain-barrier (BBB) permeability. In 13 patients with HIV-1-associated central nervous system (CNS) disease, the effect of duration was seen as an increase of the individual beta 2m levels in serum (p < 0.01). Moreover, 7 of 9 patients who developed neurological disease or showed its progression during the study increased the level of beta 2m in the CSF. All of them increased the level of beta 2m in serum. In 15 neurologically healthy subjects, the effect of duration was expressed as an increase of the level of individual beta 2m in CSF (p < 0.05) and intrathecal IgG synthesis (p < 0.01). In the AIDS group, the level of beta 2m in the CSF increased, but in less severe stages the dependency of the individual CSF parameters on disease duration was not found. Our results indicate that elevated levels of beta 2m in CSF and serum appear to predict progression of neurological and systemic diseases, respectively. Elevated beta 2m in the CSF of clinically intact individuals may indicate subclinical neurological disease caused by HIV-1.(ABSTRACT TRUNCATED AT 250 WORDS)
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