Selective Increase in Gastric Mucosal mRNA Encoding Basolateral Na-K-2Cl Cotransporter Following Ileostomy in the Rat

Heidi Hallonquist, Robert R. Cima, Mary E. Klingensmith, M. Jennifer Purdy, Eric Delpire, Michael J. Zinner, David I. Soybel

Research output: Contribution to journalArticle

5 Scopus citations

Abstract

Results of previous studies suggest that major surgical resections or reconstructions of the distal small intestine can alter morphologic and functional properties of the stomach. Little is known about the effect of lesser surgical alterations, such as construction of an ileostomy, on the morphology and transport properties of the gastric mucosa. To evaluate the effects of ileostomy, Sprague-Dawley rats underwent sham laparotomy (n = 10) or loop ileostomy construction (n = 10). After body weights had stabilized (∼21 days), the animals were killed. Gastric mucosal scrapings were prepared for Northern blot analysis of messenger RNA levels for (1) H/K ATPase, found in parietal cells; (2) Na-K-2Cl cotransporter, found in both parietal and surface cells; and (3) Na/K ATPase, found in all gastric mucosal cells. Gastric mucosa from ileostomy animals was visibly hypertrophied compared to sham-operated animals. There was a 145% increase in the mRNA levels of the Na-K-2Cl cotransporter in gastric mucosa of the ileostomy group but no significant changes in H/K ATPase or Na/K ATPase mRNA levels. Construction of an ileostomy selectively enhances expression of the Na-K-Cl cotransporter in the gastric mucosa. Further studies are required to understand the neurohumoral stimuli underlying this selective response.

Original languageEnglish (US)
Pages (from-to)238-243
Number of pages6
JournalJournal of Gastrointestinal Surgery
Volume2
Issue number3
DOIs
StatePublished - Jan 1 1998

All Science Journal Classification (ASJC) codes

  • Surgery
  • Gastroenterology

Fingerprint Dive into the research topics of 'Selective Increase in Gastric Mucosal mRNA Encoding Basolateral Na-K-2Cl Cotransporter Following Ileostomy in the Rat'. Together they form a unique fingerprint.

  • Cite this

    Hallonquist, H., Cima, R. R., Klingensmith, M. E., Purdy, M. J., Delpire, E., Zinner, M. J., & Soybel, D. I. (1998). Selective Increase in Gastric Mucosal mRNA Encoding Basolateral Na-K-2Cl Cotransporter Following Ileostomy in the Rat. Journal of Gastrointestinal Surgery, 2(3), 238-243. https://doi.org/10.1016/S1091-255X(98)80018-8