The influence of type 2 diabetes on fibrin structure and function

Autor: Robert A. S. Ariëns, Emma J. Dunn, Peter J. Grant
Rok vydání: 2005
Předmět:
Zdroj: Diabetologia. 48:1198-1206
ISSN: 1432-0428
0012-186X
DOI: 10.1007/s00125-005-1742-2
Popis: The precise mechanisms underlying the increased risk of cardiovascular disease (CVD) in type 2 diabetes are unclear. Fibrin clot structure has been related to CVD risk in the general population. We therefore assessed this in type 2 diabetic patients as a potential mechanism whereby diabetes influences CVD risk. Fibrin clots were formed from fibrinogen purified from 150 subjects with type 2 diabetes and varying degrees of glycaemic control (assessed by HbA1c), and from 50 matched control subjects. Clot structure was assessed by turbidity, permeation and confocal microscopy. The specific effect of glucose itself was assessed by analysing the structure of clots formed from purified fibrinogen in the presence of increasing concentrations of the sugar. Clots formed by fibrinogen purified from type 2 diabetic subjects had a denser, less porous structure than those from control subjects. The structural changes found were related to the individual’s glycaemic control; HbA1c correlated negatively with permeation coefficient (K s) values (indicates clot pore size) (r=−0.57, p
Databáze: OpenAIRE