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Effect of misoprostol, an antiulcer prostaglandin, on serum gastrin in patients with duodenal ulcer

  • Prostaglandins in the Upper Gastrointestinal Tract: Focus on Misoprostol
  • Cytoprotective effect of misoprostol (clinical studies)
  • Published:
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Abstract

Serum gastrin has been reported to increase after therapy with some agents effective in the treatment of duodenal ulcer (DU). Misoprostol, a prostaglandin E1 analog, is effective in the treatment of DU, with healing rates similar to those achieved with vigorous antacid therapy or H2-receptor antagonists. Misoprostol reduces gastric acid secretion and also possesses cytoprotective properties. This multicenter study examined serum gastrin levels before and after treatment of DU patients with misoprostol. Sera for gastrin measurement were obtained from DU patients after an 8-hr fast, and 15 and 30 min after a standard mixed meal. DU patients were studied before and after two to four weeks of treatment with placebo or misoprostol: in one study, misoprostol 100 μg qid (without antacid) was compared with placebo; in the other study, misoprostol at 50- or 200-μg qid dosages (with limited antacid, Amphojel up to 54 meq/day) was compared with placebo. In addition, the serum gastrin values obtained in healthy subjects were compared with those from DU patients. Fasting and postprandial serum gastrin concentrations were essentially similar for DU patients and healthy subjects. There were no significant differences, either in fasting serum gastrin or in integrated gastrin responses, in DU patients after treatment with placebo or misoprostol at 100 μg (P=0.32), 50 μg, or 200 μg doses (P=0.85). It is concluded that misoprostol, when administered four times daily for two to four weeks at dosages required for the acceleration of DU healing, does not affect serum gastrin levels.

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Authors and Affiliations

  1. Department of Medicine, University of Florida, College of Medicine, Gainesville, Florida

    James E. McGuigan MD, Yueh Chang PhD &  Esam Z. Dajani PhD, FACG

  2. Department of Clinical Research, Searle Research and Development, 4901 Searle Parkway, 60077, Skokie, Illinois

    James E. McGuigan MD, Yueh Chang PhD &  Esam Z. Dajani PhD, FACG

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  1. James E. McGuigan MD
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  2. Yueh Chang PhD
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  3. Esam Z. Dajani PhD, FACG
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McGuigan, J.E., Chang, Y. & Dajani, E.Z. Effect of misoprostol, an antiulcer prostaglandin, on serum gastrin in patients with duodenal ulcer. Digest Dis Sci 31 (Suppl 2), 120S–125S (1986). https://doi.org/10.1007/BF01309335

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