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Serum interferon and in vitro production of alpha and gamma interferon by peripheral blood leucocytes were examined in 21 African patients with acquired immunodeficiency syndrome (AIDS) and in 15 African patients with AIDS-related complex. Interferon was detected in the serum of 44% of the patients with AIDS-related complex and in 70% of the patients with full-blown AIDS, and was characterized as an acid-labile alpha interferon. When compared to healthy blood donors, the interferon response of peripheral blood leucocytes to Newcastle Disease virus was impaired in 7 of 12 patients with AIDS-related complex and in 16 of 20 AIDS patients (p less than 0.005). Also, production of gamma interferon following stimulation with phytohaemagglutinin was diminished in 5 of 11 patients with AIDS-related complex and in 13 of 17 patients with AIDS (p less than 0.005). A high correlation was observed between the presence of circulating interferon and decreased in vitro production of gamma interferon, but not of alpha interferon. These results suggest that the impairment of in vitro production of gamma interferon can be used as a preclinical marker of AIDS.
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F Mascart-Lemone, and
S Cran, and
P Van de Perre, and
P Henrivaux, and
M De Ley, and
N Clumeck
February 1984,
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January 1990,
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October 1987,
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January 1993,
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April 2002,
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K Huygen, and
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K Huygen, and
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P Henrivaux, and
M De Ley, and
N Clumeck
January 1987,
Annals of internal medicine,
