Effects of sulfonylurea agents on platelet arachidonic acid metabolism; study on platelet homogenates. 1994

K Satoh, and Y Ozaki, and Y Yatomi, and S Kume
Department of Clinical and Laboratory Medicine, Yamamanasi Medical College, Japan.

Effects of three sulfonylurea agents on arachidonic acid metabolism of platelet homogenates were evaluated using HPLC. Gliclazide had no significant inhibitory effects on arachidonic acid metabolism. Glibenclamide and glimepiride both inhibited the production of cyclooxygenase-related metabolites, thromboxane B2 (TXB2) and 12-hydroxy 5,8,10-heptadecatrienoic acid (HHT), whereas 12-hydroxy 5,8,10,14-eicosatetraenoic acid (12-HETE), a 12-lipoxygenase-related product, was unaffected. These findings confirmed part of our previous report using intact platelets, except that we found in the present study that glibenclamide had no inhibitory effect on 12-lipoxygenase.

UI MeSH Term Description Entries
D001792 Blood Platelets Non-nucleated disk-shaped cells formed in the megakaryocyte and found in the blood of all mammals. They are mainly involved in blood coagulation. Platelets,Thrombocytes,Blood Platelet,Platelet,Platelet, Blood,Platelets, Blood,Thrombocyte
D002851 Chromatography, High Pressure Liquid Liquid chromatographic techniques which feature high inlet pressures, high sensitivity, and high speed. Chromatography, High Performance Liquid,Chromatography, High Speed Liquid,Chromatography, Liquid, High Pressure,HPLC,High Performance Liquid Chromatography,High-Performance Liquid Chromatography,UPLC,Ultra Performance Liquid Chromatography,Chromatography, High-Performance Liquid,High-Performance Liquid Chromatographies,Liquid Chromatography, High-Performance
D005231 Fatty Acids, Unsaturated FATTY ACIDS in which the carbon chain contains one or more double or triple carbon-carbon bonds. Fatty Acids, Polyunsaturated,Polyunsaturated Fatty Acid,Unsaturated Fatty Acid,Polyunsaturated Fatty Acids,Acid, Polyunsaturated Fatty,Acid, Unsaturated Fatty,Acids, Polyunsaturated Fatty,Acids, Unsaturated Fatty,Fatty Acid, Polyunsaturated,Fatty Acid, Unsaturated,Unsaturated Fatty Acids
D005907 Gliclazide An oral sulfonylurea hypoglycemic agent which stimulates insulin secretion. Diabrezide,Diaglyk,Diaikron,Diamicron,Gen-Gliclazide,Gliklazid,Glyade,Glyclazide,Novo-Gliclazide,S-1702,S-852,Gen Gliclazide,Novo Gliclazide,S 1702,S 852,S1702,S852
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D006893 Hydroxyeicosatetraenoic Acids Eicosatetraenoic acids substituted in any position by one or more hydroxy groups. They are important intermediates in a series of biosynthetic processes leading from arachidonic acid to a number of biologically active compounds such as prostaglandins, thromboxanes, and leukotrienes. HETE,Acids, Hydroxyeicosatetraenoic
D013453 Sulfonylurea Compounds A class of compounds in which a sulfone functional group is attached to UREA. Compounds, Sulfonylurea
D013929 Thromboxane B2 A stable, physiologically active compound formed in vivo from the prostaglandin endoperoxides. It is important in the platelet-release reaction (release of ADP and serotonin). B2, Thromboxane
D016718 Arachidonic Acid An unsaturated, essential fatty acid. It is found in animal and human fat as well as in the liver, brain, and glandular organs, and is a constituent of animal phosphatides. It is formed by the synthesis from dietary linoleic acid and is a precursor in the biosynthesis of prostaglandins, thromboxanes, and leukotrienes. (all-Z)-5,8,11,14-Eicosatetraenoic acid,Arachidonic Acid, (all-Z)-Isomer, 1-(14)C-Labeled,Arachidonic Acid, (all-Z)-isomer, 3H-Labeled,Arachidonic Acid, Ammonium Salt, (all-Z)-Isomer,Arachidonic Acid, Cerium Salt, (all-Z)-Isomer,Arachidonic Acid, Cesium Salt, (all-Z)-Isomer,Arachidonic Acid, Lithium Salt, (all-Z)-Isomer,Arachidonic Acid, Potassium Salt, (all-Z)-Isomer,Arachidonic Acid, Sodium Salt,Arachidonic Acid, Sodium Salt, (all-Z)-Isomer,Arachidonic Acid, Zinc Salt, (all-Z)-Isomer,Sodium Arachidonate,Vitamin F,Arachidonate, Sodium
D019377 12-Hydroxy-5,8,10,14-eicosatetraenoic Acid A lipoxygenase metabolite of ARACHIDONIC ACID. It is a highly selective ligand used to label mu-opioid receptors in both membranes and tissue sections. The 12-S-HETE analog has been reported to augment tumor cell metastatic potential through activation of protein kinase C. (J Pharmacol Exp Ther 1995; 274(3):1545-51; J Natl Cancer Inst 1994; 86(15):1145-51) 12-HETE,12-R-HETE,12-S-HETE,12-S-Hydroxyeicosatetraenoic Acid,12 S Hydroxyeicosatetraenoic Acid,Acid, 12-S-Hydroxyeicosatetraenoic

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