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Acute reflux pancreatitis in rats: a comparison between two experimental models.
A Infantino1, C Fabris, D Basso
1Istituto di Patologia Chirurgica I, Universita di Padova, Italy.
Gastroenterologia Japonica
|October 1, 1992
Summary
Comparing two acute reflux pancreatitis models in rats, this study found gastro-jejunal anastomosis safer than silicon tube placement for allowing gastro-intestinal flow. Both methods induced mild pancreatic inflammation.
Area of Science:
- Gastroenterology
- Surgical Research
- Pancreatology
Background:
- Acute reflux pancreatitis is a complex condition requiring reliable animal models for research.
- Current models for inducing reflux pancreatitis in rats have varying degrees of reliability and safety.
- Evaluating and comparing existing models is crucial for advancing research in pancreatic diseases.
Purpose of the Study:
- To compare the reliability of two distinct surgical models for inducing acute reflux pancreatitis in rats.
- To assess the safety and efficacy of silicon tube duodenal intubation versus gastro-jejunal anastomosis in creating reflux pancreatitis.
- To determine the most suitable model for future studies on acute reflux pancreatitis.
Main Methods:
- Two groups of rats underwent duodenal silicon tube placement, with one group experiencing a 12-hour closed duodenal loop.
- Two other groups of rats underwent a latero-lateral antecolic anisoperistaltic gastro-jejunal anastomosis, with one group experiencing a 12-hour closed duodenal loop.
- Histological damage scores were used to evaluate the severity of induced pancreatic inflammation.
Main Results:
- Both the silicon tube and gastro-jejunal anastomosis models successfully induced mild acute pancreatic inflammation in rats.
- Rats with silicon tube placement exhibited higher histological damage scores compared to those with gastro-jejunal anastomosis.
- The gastro-jejunal anastomosis model demonstrated greater variability in outcomes between subgroups compared to the silicon tube model.
Conclusions:
- Gastro-jejunal anastomosis appears to be a safer procedure for establishing gastro-intestinal flow in rat models of acute reflux pancreatitis.
- While both models induce inflammation, the gastro-jejunal anastomosis may offer a more controlled approach for specific research applications.
- Further refinement of these models is warranted to optimize their use in studying pancreatic pathophysiology.