Abstract
Purpose
Obesity is one of the most important risk factors for acute pancreatitis. Based on the effect of sleeve gastrectomy (SG) on improving body weight and blood lipids, we investigated whether SG is beneficial in improving pancreatitis in obese rats.
Materials and Methods
Two studies were used to evaluate the effect of SG on the first onset of pancreatitis and acute episodes of recurrent pancreatitis in obese rats. A high-fat diet (HFD) for 8 weeks resulted in obesity in rats. Study 1: Obese rats were treated with SG and sham surgery. Pancreatitis was induced by intraperitoneal injection of cerulein at 6 weeks after surgery. The severity of pancreatitis was assessed by histological examination, cytokines, and infiltration of inflammatory cells. Study 2 performed the same procedure as in study 1, except that rats were intraperitoneally injected with a small dose of cerulein three times a week for 6 weeks before surgery to induce recurrent pancreatitis.
Results
The body weight, food intake, and blood lipids of SG rats in study 1 and study 2 were significantly lower than those of sham rats during the 6 weeks after surgery. Compared with sham rats, SG rats in both studies had fewer inflammatory cytokines, inflammatory cell infiltration, and pathological injury in the pancreas after cerulein-induced acute pancreatitis.
Conclusion
SG reduces the severity of the first onset of pancreatitis and the seriousness of acute episodes of recurrent pancreatitis. The improvement of lipid metabolism and body weight by SG may play an important role in this effect.
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Acknowledgements
We thank John T. Cathey for English language assistance (Peerwith, John Cathey, https://goo.gl/MSJTA7).
Funding
This study was supported by the Foundation of Sichuan Health Committee (18PJ496).
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Key Points
1. SG significantly improved body weight and lipid metabolism in obese rats.
2. SG reduces the severity of the first onset of pancreatitis in obese rats.
3. SG reduces the severity of acute episode of recurrent pancreatitis in obese rats.
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Xian, Y., Wu, Y., He, M. et al. Sleeve Gastrectomy Attenuates the Severity of Cerulein-Induced Acute Pancreatitis in Obese Rats. OBES SURG 31, 4107–4117 (2021). https://doi.org/10.1007/s11695-021-05521-8
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DOI: https://doi.org/10.1007/s11695-021-05521-8