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Related Experiment Videos

Postresection hypergastrinemia correlates with malabsorption but not adaptation

J S Thompson1, R F Harty

  • 1Surgical Service, Omaha Veterans Affairs Medical Center, Nebraska.

Journal of Investigative Surgery : the Official Journal of the Academy of Surgical Research
|November 1, 1994
PubMed
Summary
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Post-intestinal resection, elevated gastrin levels correlate with fat malabsorption and increased stool weight, not intestinal adaptation. Gastric hypersecretion, rather than hypergastrinemia, may be the key issue.

Area of Science:

  • Gastroenterology
  • Surgical Research
  • Physiology

Background:

  • Massive intestinal resection can lead to transient hypergastrinemia and gastric hypersecretion.
  • Gastric hypersecretion may negatively impact intestinal absorption.
  • Gastrin's role in intestinal adaptation post-resection is unclear.

Purpose of the Study:

  • To investigate the correlation between post-resection hypergastrinemia and intestinal malabsorption or adaptation.
  • To clarify the pathophysiological significance of hypergastrinemia after extensive intestinal resection.

Main Methods:

  • Ten dogs underwent 75% proximal intestinal resection.
  • Measurements included body weight, serum albumin, stool fat/moisture/weight, and serum gastrin levels over 40 weeks.

Related Experiment Videos

  • Intestinal remnant length and villus height were assessed at 12 and 40 weeks.

    • Main Results:

    • Significant hypergastrinemia was observed between 4 and 28 weeks post-resection.
    • Hypergastrinemia did not correlate with intestinal remnant length or villus height.
    • Duration of hypergastrinemia correlated with increased fecal fat at 12 weeks and stool weight at 40 weeks.

    Conclusions:

    • Post-resection hypergastrinemia is linked to early fat malabsorption and increased stool weight.
    • Hypergastrinemia does not correlate with intestinal adaptation after resection.
    • Gastric hypersecretion, not hypergastrinemia, is likely the more critical pathophysiological event.