Objective: to compare the effects of the hydroalcoholic extract from the peel of Camu-Camu, a fruit plant belonging to the Myrtaceae family, widely distributed in the Amazon basin, with those of sleeve gastrectomy, on the weight and glycemia of Wistar rats.
Methods: twenty-four Wistar rats underwent obesity induction through a hyperlipid diet for eight weeks (fat period), and were randomized into three groups: Control Group (CG), Camu-Camu Group (CCG) and Bariatric Surgery Group (BSG). After this period, all animals returned to a normal diet and the intervention period began: CG did not undergo any intervention beyond diet change; CCG animals underwent gavage procedure for administration of Camu-Camu hydroalcoholic extract, 1g/kg/day, for four weeks; and the BSG was submitted to the surgical procedure of sleeve gastrectomy. We followed all animals for four weeks.
Results: there was only one loss in BSG due to a gastric fistula. We observed significant variations in the animals' mean weight: the CG evolved with weight gain even after the withdraw of the hypercaloric diet, while the other two groups presented weight reduction. BSG presented a significant reduction of weight and BMI (p<0.05); CCG achieved a significant reduction only of the BMI (p<0.05). There were no statistically significant changes in the glycemic levels.
Conclusion: in spite of reducing weight, the crude hydroalcoholic extract of the Camu-Camu peel was not able to be as efficient as sleeve gastrectomy in the control of body weight in Wistar rats.
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