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Increased lipid peroxidation in type 2 poorly controlled diabetic patients
E Altomare1, G Vendemiale, D Chicco
1Istituto di Clinica Medica I, Università di Bari, Italia.
Diabete & Metabolisme
|July 1, 1992
Summary
Poorly controlled Type 2 diabetes shows increased lipid peroxidation, indicated by higher malondialdehyde (MDA) levels. Restoring glycemic control rapidly normalized these markers, suggesting a link between metabolic imbalance and oxidative stress.
Area of Science:
- Biochemistry
- Endocrinology
- Metabolic Disorders
Background:
- Diabetes mellitus is linked to oxidative stress.
- Lipid peroxidation, a marker of oxidative damage, is implicated in diabetes.
Purpose of the Study:
- To investigate the relationship between lipid peroxidation and metabolic control in Type 2 diabetes.
- To measure plasma malondialdehyde (MDA) levels in diabetic patients with varying glycemic control.
Main Methods:
- Plasma MDA concentrations were measured in poorly controlled, well-controlled Type 2 diabetic patients, and healthy controls.
- MDA ratios with cholesterol and triglycerides were analyzed.
- Correlation analysis was performed between MDA levels and glycemic control markers (blood glucose, fructosamine, HbA1c).
- MDA levels were monitored during glycemic control restoration in a subset of patients.
Main Results:
- Poorly controlled diabetics exhibited significantly higher plasma MDA levels compared to well-controlled diabetics and healthy subjects.
- MDA/Cholesterol and MDA/Triglyceride ratios were elevated in poorly controlled diabetics.
- Plasma MDA positively correlated with blood glucose, fructosamine, HbA1c, and triglycerides.
- Glycemic control restoration led to normalized MDA levels within 72 hours.
Conclusions:
- Increased lipid peroxidation is confirmed in Type 2 diabetes.
- The degree of metabolic imbalance correlates with lipid peroxidation levels.
- Lipid peroxidation may play a role in glucose-induced macromolecular damage in diabetes.