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Invited Symposium: Arachidonic Acid Metabolites, Other Inflammatory Mediators and Intestinal Ion Transport






Abstract

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Materials & Methods

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Effects of Prostanoids and Isoprostanes on the Porcine Small Intestine

Unmack, Martin Andreas (Dept. of Anatomy and Physiology, The Royal Veterinary and Agricultural University, Denmark)
Skadhauge, Erik (Dept. of Anatomy and Physiology, The Royal Veterinary and Agricultural University, Denmark)
Rangachari, Patangi K. (Dept. of Medicine, McMaster University, Canada)

Contact Person: Martin Andreas Unmack (mau@kvl.dk)


Abstract

The isoprostanes are novel prostaglandin (PG)-like compounds formed in vivo by the free-radical catalyzed peroxidation of arachidonic acid, synthesized independent of the cyclooxygenase, and their side-chains have cis orientation. Their biological effects have been documented on several test systems though information on their gastrointestinal effects are sparse. Earlier work suggested that the isoprostanes had effects both on the canine colonic epithelium and the muscularis mucosae. The pig jejunum also responded to one of the isoprostanes (8-iso-PGE2). We will discuss the potential implications of physiological, pathophysiological and pharmacological implications of such studies. M.A.Unmack gratefully acknowledges the support of The Else and Mogens Wedell-Wedellsborg Foundation, The King Christian IX and Queen Louise Anniversary Foundation, The Dagmar Marshall Foundation, The Ingeborg Roikjer Foundation, Landed Proprietor Viktor A. Goldschmidt Foundation (Dept. B), The Novo Nordisk Foundation, and The Carlsberg Foundation (RVAU). P.K.Rangachari was supported by MRC Canada.

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Presentation Number SAunmack0591
Keywords: Prostaglandins, Ion Transport, Secretion, Desensitization, Jejunum


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Unmack, Martin Andreas; Skadhauge, Erik; Rangachari, Patangi K.; (1998). Effects of Prostanoids and Isoprostanes on the Porcine Small Intestine. Presented at INABIS '98 - 5th Internet World Congress on Biomedical Sciences at McMaster University, Canada, Dec 7-16th. Invited Symposium. Available at URL http://www.mcmaster.ca/inabis98/rangacharipharm/unmack0591/index.html
© 1998 Author(s) Hold Copyright