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  • Title: Immunologic dysfunction in patients with classic hemophilia receiving lyophilized factor VIII concentrates and cryoprecipitate.
    Author: Tsoukas C, Gervais F, Fuks A, Guttmann RD, Strawczynski H, Shuster J, Gold P.
    Journal: Can Med Assoc J; 1983 Oct 01; 129(7):713-7. PubMed ID: 6225504.
    Abstract:
    The occurrence of the acquired immune deficiency syndrome (AIDS) in patients with hemophilia has suggested that an infectious agent transmitted through the frequent use of pooled blood products could be responsible. To determine if the amount or type of factor VIII preparation alters the risk of acquiring immune defects, three groups of asymptomatic heterosexual men were studied: 34 with severe classic hemophilia who were receiving lyophilized factor VIII concentrate, 10 with either mild classic hemophilia or moderately severe von Willebrand's disease who were receiving cryoprecipitate and 22 normal men who served as controls. Anergy was noted in 68%, 57% and 5% respectively of the three groups. In comparison with the control group, the group treated with lyophilized factor VIII concentrate had a significantly decreased mean ratio of helper to suppressor T lymphocytes, poor responses of the lymphocytes to mitogens, high unstimulated background activity of these cells and significantly elevated serum IgG levels. Although some of the patients with classic hemophilia who were treated with cryoprecipitate were also anergic, they did not manifest these in-vitro abnormalities. The data indicate that a majority of apparently immunocompetent individuals with classic hemophilia show in-vivo and in-vitro evidence of impaired cellular immunity and may be at risk for the development of opportunistic infections and neoplasms.
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