6-ketoprostaglandin-f1-alpha and 5-6-dihydroprostacyclin

The effect of prostacyclin and its analogues, -6-keto-prostaglandin-F1 alpha and 6-beta-prostaglandin-I1, on cysteamine induced duodenal ulceration of rats has been investigated. It seems that neither prostacyclin nor its analogues have antiulcerogenic effect in this model.

Topics: 6-Ketoprostaglandin F1 alpha; Animals; Anti-Ulcer Agents; Cysteamine; Duodenal Ulcer; Epoprostenol; Female; Prostaglandins, Synthetic; Rats; Rats, Inbred Strains

Immunoassays were developed for quantitative determination of thromboxane B2, prostaglandin D2, 13,14-dihydro-prostaglandin E2, 5,6-dihydro-prostaglandin I2, 6-keto-prostaglandin F1 alpha, 15-hydroxy-9 alpha, 11 alpha (epoxymethano) prosta-5, 13-dienoic acid and 15-hydroxy-11 alpha, 9 alpha (epoxymethano) prosta-5,13-dienoic acid. Ligands immobilized by covalent linkage to a solid support, bound homologous rabbit antibodies. [125I] Protein A was used to measure the bound IgG antibody. Increments of homologous and heterologous fluid-phase ligand completed with solid-phase ligand for antibody and resulted in decreasing amounts of bound [125I]-Protein A. The serologic specificity for each immune system was determined. Immunoassays for thromboxane B2, 6-keto-prostaglandin F1 alpha, and 5,6-dihydro-prostaglandin I2 were used to identify their respective homologous ligands that were separated by normal phase and reversed phase high pressure liquid chromatography.

Topics: 15-Hydroxy-11 alpha,9 alpha-(epoxymethano)prosta-5,13-dienoic Acid; 6-Ketoprostaglandin F1 alpha; Animals; Antibody Specificity; Antigen-Antibody Reactions; Dinoprostone; Epoprostenol; Ligands; Prostaglandin Endoperoxides, Synthetic; Prostaglandins; Prostaglandins D; Prostaglandins E, Synthetic; Prostaglandins F; Prostaglandins, Synthetic; Rabbits; Radioimmunoassay; Staphylococcal Protein A; Thromboxane B2