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Published on: September 18, 2014
Postmortem changes in electrical resistance of the gastric wall during the early postmortem period in rats
1Department of Physiology, University of Cape Town Medical School, Observatory, South Africa.
Abstract:
A simple and reliable technique was employed for measurement of (dc) electrical resistance of the gastric wall of rats. Tissue resistance decreased linearly (r = -0.87; P less than 0.001) from 66.1 +/- 12.1 kOhm/cm2 immediately following death to 23.3 +/- 3.5 kOhm/cm2 at a postmortem interval of 24 h. These changes are believed to reflect progressive postmortem changes in the physical dimensions of the intercellular space and/or changes in electrical conductivity of the intercellular/extracellular fluids.
