Ginkgetin ameliorates experimental atherosclerosis in rats

Area of Science:

• Pharmacology and Toxicology
• Cardiovascular Research
• Natural Product Chemistry

Background:

• Atherosclerosis poses a significant global health burden.
• Natural products offer a rich source for developing novel anti-atherosclerotic therapies.

Purpose of the Study:

• To investigate the therapeutic effects of ginkgetin on experimental atherosclerosis in rats.
• To elucidate the underlying mechanisms of ginkgetin's action, focusing on lipid metabolism, matrix metalloproteinases (MMPs), and the nitric oxide (NO)/NO synthase (NOS) system.

Main Methods:

• Atherosclerosis was induced in rats using a high-fat diet and vitamin D3 injection.
• Rats were treated with varying doses of ginkgetin or simvastatin.
• Analyses included histopathology, serum biochemistry, lipid deposition, MMP expression, and NO/NOS levels in thoracic aortas.

Main Results:

• Ginkgetin treatment improved aortic structure, reduced intima-media thickness, and decreased lipid deposition.
• Serum lipid profiles were favorably modulated, with decreased total cholesterol, triglycerides, and LDL-C, and increased HDL-C.
• Ginkgetin downregulated MMP-2 and MMP-9 expression while enhancing NO/NOS levels and modulating eNOS and iNOS expression.

Conclusions:

• Ginkgetin demonstrates significant therapeutic effects against experimental atherosclerosis in rats.
• Its benefits are linked to improved lipid profiles and modulation of MMP and NO/NOS pathways.
• Ginkgetin represents a potential therapeutic candidate for atherosclerosis treatment.