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  • Title: Prostaglandin synthesis by bovine mesenteric arteries and veins.
    Author: Terragno DA, Crowshaw K, Terragno NA, McGiff JC.
    Journal: Circ Res; 1975 Jun; 36(6 Suppl 1):76-80. PubMed ID: 1132084.
    Abstract:
    Prostaglandins (PG) were synthesized at similar rates by bovine mesenteric arteries and veins; viz., ca. 200 ng/g wet weight after one hour of incubation. After synthesis, PGE and PGF compounds were released from slices of arteries and veins into the incubating medium; PG were not detected in the walls of these blood vessels. Arachidonic acid, the precursor to PGE-2 and PGF-2-alpha, did not affect PG synthesis, whereas meclofenamate, an aspirin-like agent, decreased synthesis in arteries and veins by 90%. The PG biosynthetic capacity of these blood vessels is high, as indicated by greater than 20% conversion of (1-14C)-arachidonic acid to radiolabeled PG. Under control conditions in both arteries and veins, synthesis of PGE-2 exceeded that of PGF-2-alpha twofold. Bradykinin selectively increased the synthesis of a PGE-like substance in arteries and of a PGE-like substance in veins.
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