Related Experiment Videos
[Relationship between free radicals and diabetic microangiopathy]
1Department of Internal Medicine, First Affiliated Hospital, ZhejiangMedical University, Hangzhou.
Zhonghua Nei Ke Za Zhi
|July 1, 1991
Summary
This study found higher lipid peroxide levels and altered antioxidant enzyme activity in patients with non-insulin-dependent diabetes mellitus. These changes, particularly lipid peroxides, were more severe in diabetics with microangiopathy, suggesting a role for free radicals in its development.
Area of Science:
- Biochemistry
- Endocrinology
- Pathophysiology
Context:
- Non-insulin-dependent diabetes mellitus (NIDDM) is a metabolic disorder associated with oxidative stress.
- Diabetic microangiopathy is a common complication affecting small blood vessels.
Purpose:
- To investigate the role of oxidative stress markers in NIDDM patients.
- To explore the relationship between oxidative stress and diabetic microangiopathy.
Summary:
- Lipid peroxide (LPO) levels, glutathione peroxidase (GSH-PX) activity, and superoxide dismutase (SOD) activity were measured in 50 NIDDM patients and 33 controls.
- Diabetic patients exhibited significantly higher LPO values and LPO/GSH-PX and LPO/SOD ratios compared to controls.
- Elevated LPO values and ratios were more pronounced in NIDDM patients with microangiopathy, indicating a stronger oxidative stress burden.
Impact:
- Suggests that free radicals contribute to the development of diabetic microangiopathy.
- Highlights the potential of LPO as a biomarker for oxidative stress in diabetes.
- Provides insights into the biochemical mechanisms underlying diabetic complications.