The fasting blood chromium and its area of 83 noninsulindependent diabetics and 24 normal subjects were determined. The results showed that both the fastng blood chromium concentrations (39.9?17.4ppb) and its area (128.8?48.5 ppb/h) of diabetics were significantly lower than that of normal subjects (80.9?28.5 ppb, 270.6?88.4 ppb/h) (P