Effects of Modified Biliopancreatic Diversion on Glucose Tolerance of GK Rats
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The purpose of this study was to investigate the hypoglycemic effect of new biliopancreatic diversion and duodenal–jejunal bypass in Goto–Kakizaki rats and observe effects of the new surgical procedure on the glucose tolerance of GK rats.
Twenty-four 10-week-old rats (SPF grade) were randomly divided into groups A, B, and C, each with eight rats. Group A underwent duodenal–jejunal bypass, group B underwent modified biliopancreatic diversion, and group C underwent a sham operation. Median rat body weight, fasting blood glucose, OGTT, and blood lipids were measured in fasting 1 week before surgery and 1, 2, 4, and 8 weeks after surgery. Changes in gastric inhibitory polypeptide, glucagon P-like peptide-1, and insulin levels were measured by ELISA 1 week before surgery and 8 weeks after surgery.
Rats’ mean body weight in groups A and B decreased significantly from 368.025 ± 11.726 and 373.100 ± 9.859 g preoperatively to 345.750 ± 11.403 and 343.260 ± 12.399 g at the early postoperative stage (P < 0.05), and with statistically significant differences compared to the weight of rats in group C (P < 0.05). Comparisons between fasting blood glucose before surgery and 8 weeks after surgery revealed no significant differences between all three groups (P > 0.05). Glucose tolerance in groups A and B decreased from preoperative 21.175 ± 3.684 and 20.820 ± 1.671 mmol/L to postoperative 8.950 ± 0.580 and 10.500 ± 1.509 mmol/L, and both were better than that of group C (P < 0.001).
Both new biliopancreatic diversion and duodenal–jejunal bypass improve glucose tolerance of Goto–Kakizaki rats.
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- Effects of Modified Biliopancreatic Diversion on Glucose Tolerance of GK Rats
Volume 23, Issue 4 , pp 522-530
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