Perturbed bioelectrical properties of the mouse cecum following hepatectomy and starvation: The role of bacterial adherence

John C. Alverdy, Barbara Hendrickson, Stephano S. Guandalini, Robert J. Laughlin, Kevin Kent, Raj Banerjee

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11 Scopus citations

Abstract

Previous work in our laboratory has demonstrated that bacterial adherence alone to the intestinal epithelium, as occurs following catabolic stress, significantly perturbs the normal electrophysiology of the cecal mucosa. The aim of this study was to further characterize these effects in the mouse cecum following hepatectomy and short-term starvation, and to define the role of bacterial adherence in this process. Groups of mice underwent a surgical hepatectomy and were either fed or starved during the postoperative period. Groups of controls underwent sham operations and were either fed or starved postoperatively. Electrophysiologic studies in Ussing chambers at 48 hours were performed. Bacterial adherence to the mucosa was assessed by culture and histologic staining. To determine the role of bacteria in the altered electrophysiologic response, ciprofloxacin decontamination studies were performed. Only mice subjected to both hepatectomy and starvation developed bacterial adherence of sufficient magnitude (>105 cfu/gm) to alter mucosal electrophysiology (short-circuit current and basal potential difference). Ciprofloxacin decontamination completely abrogated this effect. Ion replacement studies suggested that active sodium transport was primarily responsible for the observed changes in mucosal electrophysiology. Bacterial-epithelial cell interactions may be responsible for altered mucosal ion transport observed following operative catabolic stress and short-term starvation.

Original languageEnglish (US)
Pages (from-to)235-241
Number of pages7
JournalShock
Volume12
Issue number3
DOIs
StatePublished - Sep 1999

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ASJC Scopus subject areas

  • Emergency Medicine
  • Critical Care and Intensive Care Medicine

Cite this

Alverdy, J. C., Hendrickson, B., Guandalini, S. S., Laughlin, R. J., Kent, K., & Banerjee, R. (1999). Perturbed bioelectrical properties of the mouse cecum following hepatectomy and starvation: The role of bacterial adherence. Shock, 12(3), 235-241. https://doi.org/10.1097/00024382-199909000-00012