Key Points
- To investigate whether diabetes-induced and membrane fluidity-mediated changes in platelet activation and turnover contribute to altered platelet volume distribution and reduced survival in type 2 diabetes.
- Comparative analysis of platelet volume profiles, membrane characteristics, and activation markers in individuals with type 2 diabetes mellitus versus controls.
- Evaluation of platelet membrane fluidity, expression of glycoprotein Ib alpha subunit and thrombin-stimulated P-selectin, platelet microparticles, and reticulated platelet fractions.
- Diabetic individuals exhibited an increased frequency of both very small and very large platelets compared to controls (P(chi2) < 0.03).
- Platelets from diabetic individuals showed reduced membrane fluidity (by 5.2 ± 0.6%, P < 0.01), reduced glycoprotein Ib alpha expression (by up to 17%, P < 0.01), increased thrombin-stimulated P-selectin expression (P < 0.02), and higher microparticle counts in both resting (P < 0.05) and stimulated states (P < 0.03).
- Reticulated platelets were significantly elevated in diabetic patients compared to controls (14.6 ± 5.6% vs. 8.1 ± 2.1%, P < 0.025), indicating accelerated thrombopoiesis.
Structured PICO
PPopulationIndividuals with type 2 diabetes mellitus and controls
CComparatorControls (non-diabetic individuals)
OOutcomePlatelet volume distribution, receptor expression, membrane fluidity, and fraction of reticulated plateletssurrogate
Type 2 diabetes is associated with altered platelet volume distribution, increased platelet activation, and accelerated thrombopoiesis, which may contribute to platelet hypersensitivity.