Figure 1.

Superoxide production was measured in neutrophils from obese subjects or from healthy donors unstimulated or stimulated with either 5 × 10−7 M formyl-methionyl-leucyl-phenylalanine (fMLP), 1 mg/ml opsonized zymosan (OZ) or 50 ng/ml phorbol myristate acetate (PMA). Each value is a mean of two independent tests from each subject. The mean ± standard error of the mean are presented by the horizontal lines. There is a correlation (r = 0·78) between basal superoxide production secreted from unstimulated neutrophils and the body mass index.