Fig. 3.From: Critical Role of Nitric Oxide During the Apoptosis of Peripheral Blood Leukocytes from Patients with AIDSEffect of NO modulators on PBMC response to T cell activation. Cells were incubated (105/ml) in the presence of anti-CD3-MAb and IL-2, in the absence (black points) or the presence of 500 µM l-NMMA (gray circles) or 100 µM SNAP (white circles). Surviving, nonapoptotic cells were counted as in Figure 1.Back to article page