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Fabrication and Implantation of Miniature Dual-element Strain Gages for Measuring In Vivo Gastrointestinal Contractions in Rodents.
Published on: September 18, 2014
Rat gastric mucosal microcirculation in vivo
The American Journal of Physiology
|June 1, 1985
Summary
This study developed a rat model to measure gastric mucosal microcirculation and acid output. Results show a correlation between blood flow and acid secretion, useful for future research.
Area of Science:
- Physiology
- Gastroenterology
Background:
- Gastric acid secretion regulation involves complex microcirculatory mechanisms.
- Understanding gastric mucosal blood flow is crucial for studying gastrointestinal diseases.
Purpose of the Study:
- To establish an experimental model for observing gastric mucosal microcirculation in rats.
- To investigate the relationship between gastric acid output and microvascular red cell velocity (VRBC).
Main Methods:
- Microscopic observation of gastric mucosal microcirculation via transillumination in anesthetized rats.
- Measurement of red cell velocity (VRBC) and vessel diameter for calculating microvascular flow.
- Assessment of gastric acid output and response to pentagastrin stimulation.
Main Results:
- VRBC reached steady, pulsatile values within 2 hours.
- Microvascular flow decreased in successive vessel orders.
- Higher VRBC was observed in rats with spontaneous acid output, with pentagastrin increasing both blood flow and acid secretion.
Conclusions:
- The developed rat model effectively correlates gastric acid secretion with mucosal blood flow.
- This model provides a valuable tool for investigating the interplay between gastric function and microcirculation.
