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Effect of synthetic prostaglandin E1 analog on aspirin-induced gastric bleeding and secretion

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Abstract

Twelve healthy subjects were given aspirin (975 mg four times a day) for four days. On days three and four, each dose of aspirin was preceded by a synthetic protaglandin E1 analog (misoprostol, Searle) either 25 μg, 50 μg, or placebo in a double-blind balanced full crossover design. Bleeding, gastric secretion of acid and chloride, and accumulation of gastric luminal DNA and calcium as indices of cell shedding and mucus secretion were measured by three daily morning gastric washouts, corrected for gastric emptying. Both bleeding and gastric secretion were greater on day 4 with aspirin and placebo than on day 0. With 50 μg misoprostol, and to a lesser extent with 25 μg, bleeding and gastric secretion were reduced on day 4 compared to day 4 with placebo or aspirin only days. The reduction in gastric bleeding with the 50-μg dosage of misoprostol was directly related to the reduction in acid secretion. The ratios of changes in acid and chloride outputs did not indicate any increase in bicarbonate secretion. No changes in the recoveries of calcium or DNA were seen.

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Authors and Affiliations

  1. Department of Physiology and Gastroenterology Section, Baylor College of Medicine, 1200 Moursund, 77030, Houston, Texas

    J. N. Hunt MD, PhD, J. L. Smith MD, C. L. Jiang MD & L. Kessler MS

  2. Houston VA Medical Center, Houston, USA

    J. N. Hunt MD, PhD, J. L. Smith MD, C. L. Jiang MD & L. Kessler MS

  3. Department of Gastrointestinal Pharmacology, G.D. Searle and Co., Chicago, Illinois

    J. N. Hunt MD, PhD, J. L. Smith MD, C. L. Jiang MD & L. Kessler MS

Authors
  1. J. N. Hunt MD, PhD
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  2. J. L. Smith MD
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  3. C. L. Jiang MD
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  4. L. Kessler MS
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Supported by a grant from Searle Research Laboratories.

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Hunt, J.N., Smith, J.L., Jiang, C.L. et al. Effect of synthetic prostaglandin E1 analog on aspirin-induced gastric bleeding and secretion. Digest Dis Sci 28, 897–902 (1983). https://doi.org/10.1007/BF01317040

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  • DOI: https://doi.org/10.1007/BF01317040

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