The effect of a special amino acid mixture on healing of left colonic anastomosis: An experimental study; [Özel amino asit karışımının sol kolon anastomozunun İyileşmesindeki etkisi: Deneysel çalışma]
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Date
2013
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Abstract
Objective: Arginine, glutamine, and Beta-hydroxy-beta-methylbutyrate were combined in a dietary supplement. This specialized amino acid mixture enhances wound collagen accumulation and increases wound healing. We aimed to investigate the effects of this special amino acid mixture on the healing process of experimental left colonic anastomosis. Material and Methods: The study included 20 adult male Wistar-Albino rats. The study group (n=10) received 685 mg/kg/day specialized amino acid mixture for 7 days until 12 h before surgery and was maintained throughout the study. Following midline laparatomy a 1-cm segment of the left colon was resected. Bowel continuity was restored with an end-to-end anastomosis. The animals were re-anesthetized on day 7 after the operation and anastomotic bursting pressure was measured by passing a catheter per anum up to the area of anastomosis. Anastomotic segments were removed en bloc and were vertically divided into two. One was used for hydroxyproline measurement and the other for histopathological examination. Abramov's histologic scoring system was used in this study. Results: The hydroxyproline levels and bursting pressures in the study group were superior compared to the control group. Collagen deposition and reepithelization scores of the study group were higher than that of the control group. Conclusion: Results of the present study indicates that significantly enhancing the anastomotic bursting pressure, hydroxyproline level and collagen deposition may improve anastomosis healing. © 2013 by Türkiye Klinikleri.
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Keywords
collagen , essential amino acid , hydroxyproline , animal experiment , animal tissue , article , colon anastomosis , colon resection , controlled study , diet supplementation , end to end anastomosis , epithelization , experimental study , histopathology , laparotomy , male , nonhuman , rat , wound healing