文献类型：期刊文献

英文题名：Electroacupuncture Ameliorates Postoperative Cognitive Dysfunction and Oxidative Stress via the SIRT1/FOXO1 Autophagy Pathway: An Animal Study

作者：Zhang, Xiaojia[1];Zhang, Binsen[1];Qin, Xiaoyu[1];Tang, Lu[1];Wang, Chunai[2]

第一作者：张小娟;张秀景;张秀娟;张晓洁;张小江;张学军;张香菊

通信作者：Zhang, XJ[1];Wang, CN[2]

机构：[1]Gansu Univ Chinese Med, Clin Med Coll 1, Lanzhou, Gansu, Peoples R China;[2]Gansu Hosp Tradit Chinese Med, Anesthesia & Pain Med Ctr, Lanzhou, Gansu, Peoples R China

第一机构：甘肃中医药大学

通信机构：[1]corresponding author), Gansu Univ Chinese Med, Clin Med Coll 1, Lanzhou, Gansu, Peoples R China;[2]corresponding author), Gansu Hosp Tradit Chinese Med, Anesthesia & Pain Med Ctr, Lanzhou, Gansu, Peoples R China.|[10735]甘肃中医药大学;

年份：2025

卷号：29

期号：4

外文期刊名：JOURNAL OF CELLULAR AND MOLECULAR MEDICINE

收录：;Scopus(收录号：2-s2.0-85219536449);WOS:【SCI-EXPANDED(收录号:WOS:001432096900001)】；

基金：This work was supported by National Natural Science Foundation of China, Grant/Award Number: 82260973; Gansu Provincial Key Research and Development Program-Social Development Foundation, Grant/Award Number: 20YF3FA020.

语种：英文

外文关键词：autophagy; cognitive dysfunction; electroacupuncture; oxidative stress; postoperative cognitive complications; postoperative cognitive dysfunction; SIRT1/FOXO1 signalling pathway

摘要：Postoperative cognitive dysfunction (POCD) is common in older adult patients and affects their prognosis. Studies suggested that autophagy and oxidative stress are key factors in the pathogenesis of POCD. This study aimed to determine whether electroacupuncture (EA) pre-treatment improves POCD in aged rats and the underlying mechanisms. We established a model of POCD by using propofol anaesthesia and caesarean section in aged mice and assessed whether electroacupuncture at the Baihui and Neiguan points modulates autophagy and oxidative stress involved in the pathological process of POCD. The Morris water maze test assessed postoperative cognitive function. Oxidative stress was assessed using flow cytometry and enzyme-linked immunosorbent assay (ELISA) to determine the levels of superoxide dismutase (SOD), reactive oxygen species (ROS) and malondialdehyde (MDA). Transmission electron microscopy was used to observe the ultrastructure of the hippocampal cord neurons. In addition, protein blotting and quantitative real-time polymerase chain reaction (PCR) assays were performed to assess SIRT1, FOXO1, and autophagy markers at both the protein and mRNA levels. The results showed that anaesthesia/surgery significantly impaired cognitive performance, increased oxidative stress, decreased autophagy in the hippocampus, damaged hippocampal neurones and disrupted the mitochondrial structure in aged rats. EA pre-treatment improved cognitive function, restored neuronal and mitochondrial function, increased Beclin-1 and SIRT1 levels and attenuated oxidative damage and autophagy dysfunction in POCD rats. In conclusion, EA pre-treatment improved POCD in aged rats, and this mechanism may be related to the enhancement of autophagy and the inhibition of oxidative stress through SIRT1/FOXO1 signalling.