{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2023,10,14]],"date-time":"2023-10-14T10:45:47Z","timestamp":1697280347167},"reference-count":29,"publisher":"Wiley","issue":"1","license":[{"start":{"date-parts":[[2004,4,13]],"date-time":"2004-04-13T00:00:00Z","timestamp":1081814400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Acta Physiologica Scandinavica"],"published-print":{"date-parts":[[2004,5]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p><jats:bold>Aims:\u2002<\/jats:bold> Previously, we demonstrated that gastrin peptides as long as 34 amino acids were absorbed from the ileum of rat after conjugation to the C24 position of cholic acid and that these peptides retained full biological activity. As absorption was specific to the ileum, it was inferred that the conjugated hormone was taken up by the bile salt transporters. We have now extended these experiments to a member of a different family of hormones, viz. secretin, a 27\u2010amino acid hormone that stimulates serous secretions from the exocrine pancreas.<\/jats:p><jats:p><jats:bold>Methods:\u2002<\/jats:bold> After conjugation to cholic acid, the degree of cholylsecretin absorption from the ileum of anaesthetized rats was assessed from the increase in pancreatic secretions.<\/jats:p><jats:p><jats:bold>Results:\u2002<\/jats:bold> A complication to the study was that intra\u2010ileal infusion of native secretin caused a transient increase in the levels of pancreatic secretions. This was in contrast to the effects of intra\u2010ileal infusion of cholylsecretin which did not cause this transient increase but, instead, gave rise to a delayed increase in pancreatic secretions which was sustained over several hours during which cholylsecretin was detected in plasma in high concentration by mass spectrometry. The pancreatic response to cholylsecretin was abolished by co\u2010infusion of 50\u2003m<jats:sc>m<\/jats:sc> taurocholate, employed to compete with the bile salt transporters, although a transient increase in pancreatic secretions similar to that caused by secretin was now generated. This was shown to arise from an action of taurocholate <jats:italic>per se<\/jats:italic> causing the release of endogenous secretin which is present in rat ileum.<\/jats:p><jats:p><jats:bold>Conclusions:\u2002<\/jats:bold> We, therefore, concluded that cholylsecretin had been absorbed from the rat ileum by uptake by bile salt transporters.<\/jats:p>","DOI":"10.1111\/j.1365-201x.2004.01272.x","type":"journal-article","created":{"date-parts":[[2004,4,13]],"date-time":"2004-04-13T14:15:22Z","timestamp":1081865722000},"page":"23-34","source":"Crossref","is-referenced-by-count":2,"title":["Absorption of the cholic acid\u2010conjugated peptide hormone cholylsecretin from the rat ileum <i>in vivo<\/i>"],"prefix":"10.1111","volume":"181","author":[{"given":"S.","family":"McHarg","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"J. 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