PMID: 2111174May 1, 1990Paper

Effective use of rabbit gastric antral mucosal slices in prostaglandin synthesis and metabolism studies

Biochimica Et Biophysica Acta
Y FujimotoT Fujita

Abstract

Intact slice preparations of rabbit stomach (antral mucosa, corporal mucosa, antral muscle and corporal muscle) were incubated and the released prostaglandins (PGs) were measured by reverse-phase high-performance liquid chromatography using 9-anthryldiazomethane for derivatization. With respect to total PG production, the highest amounts were generated by antral mucosal slices. Antral mucosal slices produced PGE2, 6-keto PGF1 alpha, thromboxane B2, PGF2 alpha and PGD2 (in descending order of magnitude) and possessed a high capacity for producing 13,14-dihydro-15-keto derivatives of both PGE2 and PGF2 alpha. Studies utilizing aspirin, EGTA or Ca2+ revealed that PG release by antral mucosal slices in the present in vitro system reflects a composite of the activities of phospholipase A3, PG cyclooxygenase and PG-metabolizing enzymes. These results show that antral mucosal slices will be useful in physiological and pharmacological studies on PG synthesis and metabolism of the stomach.

References

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Citations

Jul 1, 1993·Free Radical Biology & Medicine·T SumiyaT Fujita
Sep 9, 1999·European Journal of Pharmacology·Y FujimotoT Fujita
May 15, 2002·Life Sciences·Yohko FujimotoTadashi Fujita
Jun 5, 2003·Toxicology and Applied Pharmacology·Yohko FujimotoTadashi Fujita
Mar 1, 1996·Prostaglandins, Leukotrienes, and Essential Fatty Acids·S SakumaT Fujita
Sep 24, 2004·Prostaglandins, Leukotrienes, and Essential Fatty Acids·Yohko FujimotoSatoru Sakuma
Aug 4, 2010·Prostaglandins, Leukotrienes, and Essential Fatty Acids·Satoru SakumaYohko Fujimoto
Dec 1, 1992·Prostaglandins, Leukotrienes, and Essential Fatty Acids·Y FujimotoT Fujita
Dec 1, 1992·Prostaglandins, Leukotrienes, and Essential Fatty Acids·Y FujimotoT Fujita
Apr 1, 1991·Prostaglandins, Leukotrienes, and Essential Fatty Acids·Y FujimotoT Fujita
Apr 1, 1995·Prostaglandins, Leukotrienes, and Essential Fatty Acids·Y FujimotoT Fujita
Dec 18, 2007·Prostaglandins, Leukotrienes, and Essential Fatty Acids·Yohko FujimotoSatoru Sakuma

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