title: Generalized lymphadenopathy and T cell abnormalities in hemophilia A.
abstract: Two patients with hemophilia A had generalized lymphadenopathy, lymphopenia, elevated IgG values, depressed T4 (helper) lymphocytes, elevated T8 (suppressor) lymphocytes, and abnormally low T4/T8 ratios. One of the patients, who also had hepatosplenomegaly, underwent cervical lymph node biopsy; the node contained 43% T8-lymphocytes, a marked elevation over the small fraction of T8 cells usually found in lymph nodes. These patients may have a form of the acquired immune deficiency syndrome described in male homosexuals, Haitians, intravenous drug abusers, and recently, in patients with hemophilia. We studied T cell phenotypes in 43 patients with hemophilia. Fourteen of 28 patients given commercial factor VIII concentrates had abnormal T4/T8 ratios; none of nine patients who used cryoprecipitate had abnormal values. T4 helper cells were significantly lower, T8 suppressor cells significantly elevated, and T4/T8 ratios significantly lower in the lyophilized concentrate users and in patients with hemophilia as a total group. The type of therapeutic factor VIII replacement may alter the risk of developing T4/T8 abnormalities or AIDS.
mesh_terms: D000163:Acquired Immunodeficiency Syndrome / Q000635:transmission; D002648:Child; D005169:Factor VIII / Q000009:adverse effects; D005340:Fibrinogen / Q000009:adverse effects; D006467:Hemophilia A / Q000150:complications / Q000276:immunology* / Q000628:therapy; D006801:Humans; D007958:Leukocyte Count; D008206:Lymphatic Diseases / Q000209:etiology*; D008297:Male; D006377:T-Lymphocytes, Helper-Inducer / Q000032:analysis*; D050378:T-Lymphocytes, Regulatory / Q000032:analysis*
chemical_list: C026912:cryoprecipitate coagulum; D005169:Factor VIII; D005340:Fibrinogen