摘要 : Peripheral activities of kisspeptin (Kp) have been investigated in several studies and it was shown that Kp-10 activates ERK1/2, however, its regulation of AKT and mTOR activity is controversial. Therefore, this study aimed to inv... 展开 Peripheral activities of kisspeptin (Kp) have been investigated in several studies and it was shown that Kp-10 activates ERK1/2, however, its regulation of AKT and mTOR activity is controversial. Therefore, this study aimed to investigate the effect of Kp-10 on cardiac ERK1/2 and AKT activities, as well as oxidative and antioxidative parameters in healthy mice. Twelve young C57/BL6 mice were divided into two groups with six animals in each group as follows: (1) Control that received only physiological saline and (2) Kp-10 that received 20 nM Kp-10 in physiological saline intraperitoneally. After a 3-h period, animals were sacrificed, and cardiac tissues were collected for the western blot and oxidative and antioxidative enzyme activities. AKT phosphorylation was significantly increased by Kp-10. In addition, Kp-10 significantly decreased mTOR activity. Superoxide dismutase, catalase, glutathione and malondialdehyde levels, as well as total oxidant status and oxidative stress index, were similar in both groups. Total antioxidant status was significantly higher in Kp-10 group. AKT is an upstream factor of the mTOR/S6 pathway, therefore, our results suggest that Kp-10 acts differentially on AKT and mTOR/S6 activities. Moreover, increased TAS suggests an antioxidant activity of Kp-10 in healthy heart. 收起