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Calcium antagonists as antiatherogenic agents
1Baylor College of Medicine, Methodist Hospital, Section of Cardiology, Houston, Texas 77030.
Annals of the New York Academy of Sciences
|January 1, 1988
Summary
Pharmacological interventions targeting calcium metabolism show promise in slowing atherosclerosis progression in animal models. These agents, including calcium chelators and channel blockers, suppress plaque formation without affecting lipid levels.
Area of Science:
- Cardiovascular Pharmacology
- Atherosclerosis Research
- Calcium Metabolism
Background:
- High-fat diets promote atherosclerosis.
- Calcium metabolism plays a role in cardiovascular disease progression.
Purpose of the Study:
- To investigate the antiatherosclerotic effects of pharmacological agents modulating calcium metabolism.
- To determine if these effects are independent of lipid-lowering properties.
Main Methods:
- Administration of calcium-chelating agents (diphosphonic acid and thiophene carboxylic acid derivatives).
- Administration of calcium-channel blockers (dihydropyridine derivatives, verapamil, diltiazem).
- Assessment of atherogenesis in animal models (rabbits, monkeys) fed high-fat diets.
Main Results:
- Calcium-chelating and calcium-channel-blocking agents suppressed atherogenesis.
- Antiatherosclerotic effects were observed independently of hypolipidemic (lipid-lowering) effects.
Conclusions:
- Pharmacological modulation of calcium metabolism offers a potential strategy to slow atherosclerosis.
- The precise mechanisms underlying these antiatherosclerotic effects require further investigation.