title: Platelet aggregation related to age in diabetes mellitus.
abstract: Platelet aggregation induced by ADP and collagen was studied in 174 diabetic patients before entering a controlled clinical trial. The clinical characteristics have been precisely defined. The degree of retinal abnormality was assessed by fundus angiofluorography in every patient. Most patients had background retinopathy; the remainder were normal. All results were computer analysed. The only significant relationship observed was between platelet sensitivity to ADP which increases regularly in relation to age in both insulin- and non-insulin-treated diabetic patients with or without background retinopathy. Spontaneous platelet aggregation was observed in 13 subjects and was not correlated to the existence of a neuropathy or any other clinical characteristics.
mesh_terms: D000244:Adenosine Diphosphate / Q000494:pharmacology; D000293:Adolescent; D000328:Adult; D000368:Aged; D000375:Aging; D003094:Collagen / Q000494:pharmacology; D048909:Diabetes Complications; D003920:Diabetes Mellitus / Q000097:blood* / Q000188:drug therapy; D003930:Diabetic Retinopathy / Q000150:complications; D005260:Female; D006801:Humans; D007328:Insulin / Q000627:therapeutic use; D008297:Male; D008875:Middle Aged; D010974:Platelet Aggregation; D013997:Time Factors
chemical_list: D007328:Insulin; D000244:Adenosine Diphosphate; D003094:Collagen