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Published on: November 6, 2012
The feasibility of modified pancreatogastrostomy in vivo and its effect on intestinal microecology
Guoliang Shen1, Luning Wu2, Hangdong Jia3
1General Surgery, Department of Hepatobiliary and Pancreatic Surgery and Minimal Invasive Surgery, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College Hangzhou 310014, Zhejiang, China.
Purpose:
To evaluate the feasibility of modified binding pancreatogastrostomy (MBPA) by comparing it with traditional pancreatogastrostomy (TPA) and to determine the surgical effects on the intestinal microecology.
Methods:
The surgical effects on the intestinal microecology of female Bama minipigs (n = 20) were determined by measuring the expressions of the intestinal microbial proteins in the gastric juice, gastric mucosa, and feces before and after MBPA and TPA. We then constructed an integrated interaction network based on the metabolomics and 16S amplicon data, the microbiota, the metabolites, and the associated pathways.
Results:
The average time required for anastomosis was significantly lower after MBPA than after TPA, but the breaking force did not significantly differ between them. We identified 25 and 51 differentially expressed metabolites and microbiota, respectively. An interaction network was constructed using 16 metabolites (including pyruvic and lactic acids), 27 microbiota (including Ruminococcaceae_UCG-00) and six pathways (including pyruvate metabolism).
Conclusion:
Anastomosis might be achieved sooner and with less pancreatic leakage using MBPA compared with TPA. Pancreatogastrostomy inhibits Ruminococcaceae activity, leading to increased expressions of pyruvic and lactic acids in the gut.
