Repetitive deformation and pressure activate small bowel and colonic mucosal tyrosine kinase activity in vivo.

Publication/Presentation Date

12-1-2002

Abstract

Physical forces like deformation and pressure modulate signaling and phenotype in cultured cells. However, it is more difficult to establish that such phenomena occur in vivo. We studied the effects of 0 to 10 minutes of rhythmic distension with an isotonic electrolyte and polyethylene glycol solution to 30 cm H(2)O pressure on defunctionalized small and large bowel segments in adult male Sprague Dawley rats. Mucosa was harvested at 0, 1, and 10 minutes and assayed for tyrosine kinase activity. Rhythmic distension caused a time-dependent increase in colonic mucosal tyrosine kinase activity, which was statistically significant at 10 minutes (140% +/- 41% increase, n = 5, P

Volume

51

Issue

12

First Page

1525

Last Page

1527

ISSN

0026-0495

Disciplines

Medicine and Health Sciences | Pediatrics

PubMedID

12489062

Department(s)

Department of Pediatrics, Department of Surgery

Document Type

Article

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