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Platelet-activating factor in normal rat uterus.

K Yasuda, K Satouchi, K Saito

    Biochemical and Biophysical Research Communications
    |August 14, 1986
    PubMed
    Summary
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    Platelet-activating factor (PAF) was identified in normal rat uterus, marking the first significant discovery of this compound in animal tissue. This finding opens new avenues for understanding uterine physiology and related biological processes.

    Area of Science:

    • Biochemistry
    • Reproductive Biology
    • Pharmacology

    Background:

    • Platelet-activating factor (PAF) is a potent lipid mediator involved in various physiological and pathological processes.
    • The presence and role of PAF in normal reproductive tissues, particularly the uterus, remain incompletely understood.

    Purpose of the Study:

    • To identify and quantify Platelet-activating factor (PAF) in normal rat uterus.
    • To characterize the biological activity of uterine PAF and its chemical structure.

    Main Methods:

    • Purification of PAF using successive chromatographic techniques.
    • Assessment of platelet aggregation activity and inhibition studies.
    • Gas chromatography-mass spectrometry (GC-MS) analysis of PAF derivatives.

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    Main Results:

    • PAF was identified as 1-O-hexadecyl/octadecenyl-2-acetyl-sn-glycero-3-phosphocholine in normal rat uterus.
    • Uterine PAF demonstrated platelet aggregating activity, inhibited by CV 3988.
    • Quantification revealed approximately 21.3 ng of PAF per rat uterus.
    • This study represents the first report of significant PAF levels in normal animal tissue.

    Conclusions:

    • Normal rat uterus contains a significant amount of Platelet-activating factor (PAF).
    • The identified PAF exhibits characteristic biological activity, confirming its identity.
    • This discovery provides a foundation for further research into PAF's role in uterine function.