[Platelet functions in diabetes with angiopathy (author's transl)]

Platelet functions studied in 163 unselected diabetics compared with 163 controls had the following characteristics: hyperagregation induced by ADP (1.2 muM and 0.6 muM), delayed platelet disagregation (ADP: 0.6 muM), normal agregation in the presence of collagen and thrombin. Platelet hyperagregation induced by ADP was marked in both sexes in cases of retinopathy and in women after the age of 50. By contrast, no correlation was demonstrated between the degree of hyperagregation and age, weight, the duration of diabetes, blood glucose control, lipid profile, vascular complications other than retinopathy and the nature of treatment.