Cebrail Akyuz 1 , Necdet Fatih Yasar 2 , Orhan Uzun 2 , Kıvanc Derya Peker 2 , Oguzhan Sunamak 1 , Mustafa Duman 2 , Ahmet Ozer Sehirli 3 , Sinan Yol 4 Show Affiliations »
Abstract
INTRODUCTION: This study aimed to investigate the effects of melatonin on the healing of colon anastomosis following chemotherapy. METHODS: 32 rats were randomised into four groups: (a) control group, which underwent sigmoid colon transection and primary anastomosis; (b) melatonin group, which received melatonin daily following anastomosis; (c) 5-fluorouracil (5-FU) group, which received 5-FU for five days prior to anastomosis; and (d) 5-FU+melatonin group, which received 5-FU for five days prior to anastomosis and melatonin daily following anastomosis. The rats were sacrificed on Postoperative Day 7 and anastomotic bursting pressures were measured. The anastomotic segment was extracted for hydroxyproline, luminol and lucigenin measurement and histopathological examination. Blood samples were obtained from the vena cava for measurement of tumour necrosis factor-alpha (TNF-α) and interleukin-1 beta (IL-1β) plasma levels. RESULTS: Compared to the 5-FU group, bursting pressures of anastomosis and hydroxyproline levels were significantly higher, while luminol and lucigenin levels were significantly lower, in the control and 5-FU+melatonin groups. In addition, TNF-α and IL-1β plasma levels were significantly lower in the control and 5-FU+melatonin groups than in the 5-FU group. Histopathological examination showed a significant decrease in inflammation and necrosis formation in the melatonin group when compared to the control group. The positive effect of melatonin was also seen in the rats that received 5-FU. CONCLUSION: Our study results showed that the adverse effects of chemotherapy on the mechanical, biochemical and histopathological parameters of anastomosis healing were attenuated through melatonin treatment. Copyright: © Singapore Medical Association.
INTRODUCTION: This study aimed to investigate the effects of melatonin on the healing of colon anastomosis following chemotherapy. METHODS: 32 rats were randomised into four groups: (a) control group, which underwent sigmoid colon transection and primary anastomosis; (b) melatonin group, which received melatonin daily following anastomosis; (c) 5-fluorouracil (5-FU ) group, which received 5-FU for five days prior to anastomosis; and (d) 5-FU +melatonin group, which received 5-FU for five days prior to anastomosis and melatonin daily following anastomosis. The rats were sacrificed on Postoperative Day 7 and anastomotic bursting pressures were measured. The anastomotic segment was extracted for hydroxyproline , luminol and lucigenin measurement and histopathological examination. Blood samples were obtained from the vena cava for measurement of tumour necrosis factor-alpha (TNF-α) and interleukin-1 beta (IL-1β) plasma levels. RESULTS: Compared to the 5-FU group, bursting pressures of anastomosis and hydroxyproline levels were significantly higher, while luminol and lucigenin levels were significantly lower, in the control and 5-FU +melatonin groups. In addition, TNF-α and IL-1β plasma levels were significantly lower in the control and 5-FU +melatonin groups than in the 5-FU group. Histopathological examination showed a significant decrease in inflammation and necrosis formation in the melatonin group when compared to the control group. The positive effect of melatonin was also seen in the rats that received 5-FU . CONCLUSION: Our study results showed that the adverse effects of chemotherapy on the mechanical, biochemical and histopathological parameters of anastomosis healing were attenuated through melatonin treatment. Copyright: © Singapore Medical Association.
Entities: Chemical
Disease
Gene
Species
Keywords:
5-fluorouracil; colonic anastomosis; healing; melatonin; oxidative stress
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Year: 2018
PMID： 29552688 PMCID： PMC6199196 DOI： 10.11622/smedj.2018035
Source DB: PubMed Journal: Singapore Med J ISSN： 0037-5675 Impact factor: 1.858