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Platelet function in patients with type 2 diabetes mellitus: the effect of glycaemic control
1Patologia Medica II, Università di Palermo, Italy.
Abstract:
In the present study the effects of a short term intensive glycaemic control obtained with subcutaneous insulin therapy on lipids and apoprotein levels, platelet aggregation, platelet sensitivity to prostacyclin and platelet thromboxane production were investigated in 20 patients with type 2 diabetes and vascular disease. In 11 out of the 20 patients there was a significant improvement of glycaemic control (fructosamine reduction). Only with tight improvement of glycaemic control there was significant change in the concentration of ADP and collagen required to produce 50% of the maximum aggregation wave response, in the responsiveness of platelet to PGI2 and in the TxB2 synthesis. Lower Apo B levels were also shown in the tight control group suggesting that Apo B changes may have influenced platelet aggregation and thromboxane synthesis.
Insights
Intensive glycemic control in type 2 diabetes patients with vascular disease improved platelet function and reduced Apo B levels. Tight control, achieved with insulin therapy, positively impacted platelet aggregation and thromboxane synthesis.
Area of Science:
- Endocrinology
- Cardiovascular Medicine
- Hematology
Background:
- Type 2 diabetes and vascular disease are associated with impaired platelet function.
- Poor glycemic control exacerbates cardiovascular complications.
- Lipid and apoprotein profiles are often abnormal in diabetic patients.
Purpose of the Study:
- To investigate the effects of short-term intensive glycemic control on platelet function and lipid/apoprotein levels in type 2 diabetes patients with vascular disease.
- To assess the impact of subcutaneous insulin therapy on platelet aggregation, prostacyclin sensitivity, and thromboxane production.
- To explore the relationship between glycemic control, lipid profiles, and platelet activity.
Main Methods:
- A study involving 20 patients with type 2 diabetes and vascular disease.
- Short-term intensive glycemic control achieved via subcutaneous insulin therapy.
- Measurements included fructosamine, lipids, apoproteins (Apo B), platelet aggregation (response to ADP and collagen), platelet sensitivity to prostacyclin (PGI2), and thromboxane B2 (TxB2) synthesis.
Main Results:
- Significant improvement in glycemic control (fructosamine reduction) was observed in 11 out of 20 patients.
- Tight glycemic control led to significant changes in platelet aggregation response, platelet sensitivity to PGI2, and TxB2 synthesis.
- Lower Apo B levels were noted in the group with tight glycemic control.
Conclusions:
- Short-term intensive glycemic control in type 2 diabetes with vascular disease can improve platelet function.
- Improved glycemic control may influence platelet aggregation and thromboxane synthesis, potentially via changes in Apo B levels.
- Tight glycemic control is a promising strategy for managing cardiovascular risk in diabetic patients.