Published in:
01-11-2016 | Original Article
Preoperative vitamin C supplementation improves colorectal anastomotic healing and biochemical parameters in malnourished rats
Authors:
Lucineia Gainski Danielski, Eduardo Walczewski, Clovisa Reck de Jesus, Drielly Florentino, Amanda Della Giustina, Mariana Pereira Goldim, Luiz Alberto Kanis, Gregório W. Pereira, Volnei D. Pereira, Francine Felisberto, Fabricia Petronilho
Published in:
International Journal of Colorectal Disease
|
Issue 11/2016
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Abstract
Purposes
The objective of this study was to evaluate the effect of supplementation with vitamin C on intestinal anastomosis healing in malnourished rats.
Methods
Male Wistar rats were divided into three groups: (1) sham, well-nourished rats that received vehicle; (2) FR+Veh, rats that were subjected to food restriction and received vehicle; and (3) FR+VC, rats that were subjected to food restriction and received vitamin C. Four days before surgery, the animals received vitamin C (100 mg/kg/day) via gavage and underwent colon resection with anastomosis in a single plane. The survival rate of rats was monitored until day 7 after surgery. Regarding anastomosis tissues, we examined intra-abdominal adhesion index, hydroxyproline content, collagen density, inflammatory parameters, and oxidative damage to proteins and lipids.
Results
Malnutrition decreases body weight and increases mortality; the survival rate was 90 % in group 1, 60 % in group 2, and 80 % in group 3. Vitamin C was able to increase hydroxyproline concentration and density of collagen and decrease the intra-abdominal adhesion index, as well as the infiltration of neutrophils and oxidative damage to proteins in malnourished rats compared to group treated with vehicle.
Conclusions
Preoperative vitamin C supplementation can improve the intestinal anastomosis healing, biochemical alterations, and prolong survival in rats subjected to food restriction.