Fig. 2From: Nitric Oxide Production and Nitric Oxide Synthase Type 2 Expression by Human Mononuclear Phagocytes: A ReviewEnhancement of normal blood monocyte NOS enzyme activity (A) and NO production (B) by treatment with IFN-α in vitro. (A) Purified blood monocytes from eight separate normal individuals were cultured for 3 days with the indicated amounts of IFN-α, and analyzed for NOS activity. The points show the mean ± 1 SEM. (B) Purified blood monocytes from eight separate normal individuals were cultured as noted in 3A, and then supernatant media samples were assessed for content of nitrite/nitrate. The points show the mean ± 1 SEM. [Reproduced with permission (76).]Back to article page