Effects of therapy with diet and simvastatin on atherosclerosis in hypercholesterolemic patients

Area of Science:

• Cardiology
• Pharmacology
• Biochemistry

Background:

• Atherosclerotic coronary artery disease is a leading cause of mortality.
• High cholesterol levels, particularly LDL cholesterol, are a major risk factor for atherosclerosis.
• Statins, such as simvastatin, are effective in lowering cholesterol.

Purpose of the Study:

• To evaluate the impact of cholesterol reduction on coronary artery lesions.
• To assess the efficacy of a non-atherogenic diet combined with simvastatin therapy.
• To determine if lipid-lowering can alter the progression of coronary atherosclerosis.

Main Methods:

• Fifteen subjects with significant coronary artery narrowing and high cholesterol (>278 mg/dl) were enrolled.
• Participants received a non-atherogenic diet and simvastatin for approximately 20 months.
• Coronary arteriography was performed before and after treatment to assess lesion status.

Main Results:

• Therapy resulted in a 42% reduction in total cholesterol and a 52% reduction in LDL cholesterol.
• The HDL/LDL cholesterol ratio increased by 87% (p < 0.01).
• Coronary lesion status improved in 13% of patients, deteriorated in 7%, and remained unchanged in 80%.

Conclusions:

• Cholesterol-lowering therapy with diet and simvastatin may stabilize coronary atherosclerosis.
• This regimen demonstrates potential in managing the progression of atherosclerotic lesions.
• Further research is warranted to explore the long-term effects and broader applicability.