title: Plasma beta-thromboglobulin, platelet factor 4, fibrinopeptide A, and other hemostatic functions during improved, short-term glycemic control in diabetes mellitus.
abstract: To determine the effect of improved, short-term glycemic control on various functions of hemostasis in insulin-dependent diabetes, we measured changes in plasma fibrinogen, fibrinopeptide A (FPA), functional antithrombin III (AT-III), factor VIII:ristocetin cofactor ( VIIIRCoF ), beta-thromboglobulin (BTG), platelet factor 4 (PF4), and platelet aggregation responses to ADP and collagen in 12 patients with low or undetectable stimulated (postprandial) serum C-peptide levels during 4-8 wk (median, 6 wk) of treatment with constant subcutaneous insulin infusion. Mean plasma fibrinogen, FPA, AT-III, VIIIRCoF , and BTG at baseline were elevated compared with normal. Three patients had heightened platelet responses to ADP that did not correlate to other indicators of a hypercoagulable state; the affected patients, in fact, had significantly lower plasma BTG (25.5 +/- 5.3 [SEM] versus 44.6 +/- 4.6 ng/ml, P less than 0.05) and FPA (1.1 +/- 0.1 versus 2.5 +/- 0.5 ng/ml, P less than 0.05) than the remaining patients. Patients with clinically evident vascular disease had higher baseline plasma BTG and FPA than those without vascular disease (44.6 +/- 5.4 versus 30.2 +/- 4.6, and 2.6 +/- 0.6 versus 1.3 +/- 0.2 ng/ml, P less than 0.05, respectively). During treatment, all patients had declining blood glucose (200 +/- 18 to 102 +/- 5 mg/dl, P less than 0.001) and HbA1 (11.8 +/- 0.6 to 10.2 +/- 0.4%, P less than 0.005). No statistically significant changes in hemostatic functions were noted. During treatment, one patient had an acute myocardial infarction.(ABSTRACT TRUNCATED AT 250 WORDS)
mesh_terms: D000244:Adenosine Diphosphate / Q000494:pharmacology; D000293:Adolescent; D000328:Adult; D000368:Aged; D000990:Antithrombin III / Q000032:analysis; D001609:Beta-Globulins / Q000032:analysis*; D001786:Blood Glucose / Q000032:analysis*; D002648:Child; D003094:Collagen / Q000494:pharmacology; D003922:Diabetes Mellitus, Type 1 / Q000188:drug therapy*; D005260:Female; D005340:Fibrinogen / Q000032:analysis / Q000097:blood*; D005344:Fibrinopeptide A / Q000097:blood*; D006442:Glycated Hemoglobin / Q000032:analysis; D006801:Humans; D007332:Insulin Infusion Systems; D008297:Male; D008875:Middle Aged; D010974:Platelet Aggregation / Q000187:drug effects; D010978:Platelet Factor 4 / Q000032:analysis*; D013997:Time Factors; D014652:Vascular Diseases / Q000209:etiology; D001620:beta-Thromboglobulin / Q000032:analysis*; D014841:von Willebrand Factor / Q000032:analysis
chemical_list: D000244:Adenosine Diphosphate; D000990:Antithrombin III; D001609:Beta-Globulins; D001786:Blood Glucose; D003094:Collagen; D005340:Fibrinogen; D005344:Fibrinopeptide A; D006442:Glycated Hemoglobin; D010978:Platelet Factor 4; D001620:beta-Thromboglobulin; D014841:von Willebrand Factor