Influence of cefodizime on chemotaxis and the respiratory burst in neutrophils from diabetics.

The effect of cefodizime on the function in vitro of neutrophils from poorly-controlled, non-insulin-dependent diabetics was demonstrated by the chemotactic index and by chemiluminescence. Without cefodizime treatment, the chemotactic index for diabetic neutrophils was significantly lower than that for healthy controls (1.0 +/- 0.1 vs 3.6 +/- 0.7; mean +/- S.E.M., P less than 0.01). When neutrophils were pretreated with cefodizime at 1 or 10 mg/l, cefodizime restored the chemotactic activity of diabetic neutrophils (1.0 +/- 0.1 vs 2.7 +/- 0.3, P less than 0.01), but did not affect the activity in healthy controls. Conversely, cefodizime at 100 mg/l had no enhancing effect on diabetic neutrophil chemotaxis, but decreased the chemotactic activity of healthy neutrophils (1.1 +/- 0.2 vs 3.6 +/- 0.7, P less than 0.01). A difference in neutrophil chemiluminescence was also found between diabetics and healthy subjects but no influence of cefodizime on chemiluminescence was noted in neutrophils from either diabetics or healthy subjects.