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Antiplatelet agents isolated from medicinal plants.
1Pharmacological Institute, College of Medicine, National Taiwan University, Taipei.
Research Communications in Molecular Pathology and Pharmacology
|May 26, 1999
Summary
Medicinal plants yield novel antiplatelet agents that target key steps in platelet activation. These compounds, classified into eight groups, show potential for developing new cardiovascular drugs.
Area of Science:
- Pharmacology
- Natural Products Chemistry
- Cardiovascular Medicine
Background:
- Platelet-vessel wall interactions are crucial for hemostasis and thrombosis.
- Traditional oriental medicine utilizes plants for circulatory and antithrombotic benefits.
Purpose of the Study:
- To isolate and classify antiplatelet agents from medicinal plant sources.
- To explore the potential of these agents as leads for cardiovascular drug development.
Main Methods:
- Bioassay-guided fractionation and purification by chemists.
- Classification of agents based on their effects on platelet aggregation, release, and signal transduction.
Main Results:
- Eight distinct groups of antiplatelet agents were identified.
- Agents act as platelet-activating factor (PAF) antagonists, receptor antagonists/agonists, enzyme inhibitors, or modulators of intracellular signaling pathways.
Conclusions:
- Medicinal plants are a valuable source of diverse antiplatelet compounds.
- These novel agents offer promising leads for the development of novel cardiovascular therapeutics.