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Influence of age on natural and delayed healing of experimentally-induced gastric ulcers in rats

  • Esophageal, Gastric And Duodenal Disorders
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Abstract

This study aimed to investigate the effect of age on natural ulcer healing and delayed ulcer healing induced by nonsteroidal antiinflammatory drugs, using a rat model. Gastric ulcers were induced in young, adult, and aged rats using serosal or mucosal (kissing ulcers) application of acetic acid. Rats were treated with indomethacin 1 mg/kg/day subcutaneously or vehicle for two weeks. Ulcers were assessed by macroscopic and histological measurements of ulcer size. Ulcer induction was affected by age. Aged rats developed significantly smaller ulcers when induced by serosal application of acetic acid and significantly larger ulcers from mucosal application of acetic acid. However, measurements of ulcer size from both models showed no age-related differences in natural ulcer healing. Similarly, indomethacin-induced delayed gastric ulcer healing was not effected by age. We conclude that there are age-related differences in the development of gastric ulcers but there are no age-related differences in natural or delayed ulcer healing in rats.

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Authors and Affiliations

  1. From the Department of Surgery, Monash University Medical School, Alfred Hospital, 3181, Prahran, Victoria, Australia

    Angela G. Penney MSc,  Fiona J. Andrews PhD &  Paul E. O'Brien MD

Authors
  1. Angela G. Penney MSc
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  2. Fiona J. Andrews PhD
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  3. Paul E. O'Brien MD
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Additional information

This study was supported by grants from the Sandoz Foundation for Gerontological Research, Australia and Perpetual Trustees, Australia.

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Penney, A.G., Andrews, F.J. & O'Brien, P.E. Influence of age on natural and delayed healing of experimentally-induced gastric ulcers in rats. Digest Dis Sci 41, 1838–1844 (1996). https://doi.org/10.1007/BF02088755

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  • DOI: https://doi.org/10.1007/BF02088755

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