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  • Title: The effects of prostaglandins PGE1, PGE2, PGF1a, and PGF2alpha on canine synovial perfusion.
    Author: Grennan DM, Zeitlin IJ, Mitchell WS, Buchanan WW, Dick WC.
    Journal: Prostaglandins; 1975 May; 9(5):799-816. PubMed ID: 1162087.
    Abstract:
    In these experiments we have examined the effects of PGE1, PGE2, PGF1alpha and PGF2alpha on synovial perfusion in the normal canine synovial microcirculation. The effects of the drugs on synovial perfusion were determined indirectly from the changes produced in the rate of clearance of 133Xenon from the joint by their intra-articular injection. Prostaglandins PGE1 and PGE2 were found to be strongly vasodilator with PGE1 being the more active. PGF1alpha appeared to have little or no vasoactive properties in doses up to 1 ugm. (2.8 times 10(-5M)) in our preparation while PGF2alpha was vasodilator at this high dosage only. Neither SC19920 nor diphloretin phosphate antagonished the effects of PGE1 in these experiments.
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