Abstract Title:

The Effect of Melatonin on the Serum Level of Interleukin 6 and Interleukin 9 in Coronary Artery Bypass Grafting Surgery.

Abstract Source:

Asian J Anesthesiol. 2020 Mar 1 ;58(1):35-44. Epub 2020 Mar 26. PMID: 33081432

Abstract Author(s):

Reza Jouybar, Mahtab Setoodeh, Zeinabsadat Fattahi Saravi, Sedigheh Ahmadi, Ali Karami, Saeed Khademi, Ahad Izadpanah, Mansour Jannati, Masih Shafa, Elham Asadpour, Farzaneh Masih, Mahyar Malekzadeh

Article Affiliation:

Reza Jouybar


OBJECTIVE: Cardiopulmonary bypass has been recognized as one of the main causes of systemic inflammatory response syndrome, leading to post-operative complications. The aim of this study was to investigate the effect of melatonin on the serum levels of interleukin 6 (IL-6) and IL-9 in patients undergoing coronary artery bypass grafting surgery.

METHODS: Forty-four patients undergoing elective coronary artery bypass surgery were randomly allocated into two study groups of melatonin (n = 23) and placebo (n = 21). Patients in the melatonin group received two melatonin tablet, 5 mg daily for 3 days before surgery, 10 mg tablet (two doses of 5 mg) 1 h before induction of anesthesia and finally, 10 mg melatonin tablet in the intensive care unit, placebo group patients received placebo at the same time periods. Serum levels of IL-9 and IL-6 were measured as baseline (T1), before induction of anesthesia (T2), 6 and 24 h after off pump (T3, T4). Data were analyzed using SPSS 23 software (IBM Corp., Armonk, NY, USA).

RESULTS: The mean serum level of IL-6 was significantly lower in the melatonin group at T3 and T4 (p< 0.05). Also, in both groups, serum levels of IL-6 in T3 showed a significant increase compared to T1. Serum levels of IL-9 had no significant difference between the two groups at T1, T2, T3, and T4.

CONCLUSION: The results of this study showed that pre-operative melatonin administration could modify inflammatory cytokines secretion such as IL-6 while it has no significant effect on the serum levels of IL- 9. Neither of the changes was clinically significant.

Study Type : Human Study

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