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Study on paraoxonase 1 in type 2 diabetes mellitus
Indian Journal of Physiology and Pharmacology
|December 4, 2014
Summary
Type 2 Diabetes Mellitus (T2DM) is linked to oxidative stress, reducing the antioxidant enzyme Paraoxonase 1 (PON1) activity. This study found significantly lower PON1 levels in T2DM patients compared to healthy individuals.
Area of Science:
- Biochemistry
- Endocrinology
- Metabolic Disorders
Background:
- Type 2 Diabetes Mellitus (T2DM) is a prevalent metabolic disorder characterized by insulin resistance.
- T2DM is associated with increased oxidative stress, depleting the body's antioxidant defenses.
- Paraoxonase 1 (PON1), an antioxidant enzyme linked to High-Density Lipoprotein (HDL), may be affected in T2DM.
Purpose of the Study:
- To investigate the activity of the antioxidant enzyme PON1 in patients with Type 2 Diabetes Mellitus.
- To compare PON1 activity in T2DM patients with age and sex-matched healthy controls.
Main Methods:
- The study included 93 T2DM patients and 89 healthy controls.
- Paraoxonase 1 activity was measured using fluorimetry.
- Statistical analysis was performed using SPSS, including Pearsons' correlation.
Main Results:
- A significant reduction in PON1 activity was observed in T2DM patients compared to controls (p < 0.001).
- T2DM patients also showed decreased HDL cholesterol levels.
- Diabetes progression correlated with further reductions in PON1 activity.
Conclusions:
- Type 2 Diabetes Mellitus, a state of oxidative stress, leads to diminished antioxidant capacity due to reduced PON1 enzyme activity.
- PON1 activity may serve as a biomarker for oxidative stress in T2DM.
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