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Platelet activating factor and lyso-phosphatidylcholines from strawberry
M Calligerou1, A Siafaka-Kapadai, D Galanopoulou
1Department of Chemistry (Biochemistry), University of Athens, Zografou, Greece.
Phytochemistry
|January 1, 1996
Summary
Researchers discovered platelet-activating factor (PAF) in strawberries, a lipid compound that influences platelet aggregation. This finding opens new avenues for understanding plant-derived bioactive lipids and their potential biological roles.
Area of Science:
- Lipidomics
- Plant Biochemistry
- Pharmacology
Background:
- Lipids play crucial roles in various biological processes.
- Plant-derived compounds are increasingly recognized for their therapeutic potential.
Purpose of the Study:
- To investigate the presence and biological activity of lipids in different parts of the strawberry plant.
- To identify specific lipid compounds and characterize their functions.
Main Methods:
- Lipid extraction from strawberry fruits, leaves, achenes, and pollen.
- Separation and purification using Thin Layer Chromatography (TLC) and High-Performance Liquid Chromatography (HPLC).
- Biological activity assays, including platelet aggregation tests and mass spectrometry (FAB-MS) for confirmation.
Main Results:
- A lipid fraction from strawberry fruits exhibited biological activity identical to authentic platelet-activating factor (PAF).
- This fraction demonstrated dose-dependent aggregation of rabbit platelets, inhibition by CV 3988, and characteristic PAF responses.
- Lyso-phosphatidylcholines, including lyso-PAF, were detected in all tested strawberry plant parts.
Conclusions:
- Platelet-activating factor (PAF) is present in strawberry fruits and exhibits characteristic biological activities.
- The study confirms the presence of PAF and related lyso-lipids in various strawberry plant tissues.
- These findings highlight the potential of strawberries as a source of bioactive lipids with implications in platelet function.