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  • Title: Thymosin in the early diagnosis and treatment of high risk homosexuals and hemophiliacs with AIDS-like immune dysfunction.
    Author: Naylor PH, Schulof RS, Sztein MB, Spira TJ, McCurdy PR, Darr F, Kessler CM, Simon GL, Goldstein AL.
    Journal: Ann N Y Acad Sci; 1984; 437():88-99. PubMed ID: 6398657.
    Abstract:
    The adnormal levels of thymosin alpha 1 in acquired immunodeficiency syndrome (AIDS) patients, depressed T-cell function, thymus pathology, and the restoration of T-cell function by thymosin fraction 5 (TF5) lend support to the hypothesis that the thymus plays a central role in AIDS. The thymosin alpha 1 assay may provide a means of identifying symptomatic carriers of AIDS. This paper summarizes the current status of diagnostic studies with thymosin alpha 1 in AIDS and reports the 1st clinical trial with thymosin in subjects with AIDS-like immune dysfunction. Serum samples from intravenous drug abusers, homosexuals, and Haitians with AIDS have revealed thymosin alpha 1 levels at least 2 standard deviations from the mean of controls without AIDS. Preliminary data from a pilot study in homosexuals and hemophiliacs at high risk for AIDS suggest that the administration of TF5 may be effective in reconstituting some T-cell mediated specific immune functions, including cell-medicated lympholysis (CML) and the mixed lymphocyte response (MLR), and enhancing the lectin-induced production of T-cell growth factor. On the other hand, TF5 has failed to have any effects on the T4/T8 ratio, absolute lymphocyte counts, or natural killer cell activity.
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