PMID- 31340174 OWN - NLM STAT- MEDLINE DCOM- 20200914 LR - 20200914 IS - 1872-7549 (Electronic) IS - 0166-4328 (Linking) VI - 373 DP - 2019 Nov 5 TI - Preoperative vitamin-rich carbohydrate loading alleviates postoperative cognitive dysfunction in aged rats. PG - 112107 LID - S0166-4328(19)30218-9 [pii] LID - 10.1016/j.bbr.2019.112107 [doi] AB - With the acceleration of an aging population, postoperative cognitive dysfunction (POCD) has become a large problem. Preoperative carbohydrate (CHO) loading has been reported to attenuate surgery stress response and insulin resistance. The present study aimed to investigate whether preoperative vitamin-rich CHO loading has an effect on POCD, endoplasmic reticulum (ER) stress, and apoptosis. Eighty male Sprague-Dawley rats (20-month old) were randomly assigned to four groups (20 per group): control group (no anesthesia and surgery), fasting group (fasting 14 h before surgery), water group (oral water 3 h before surgery), and CHO group (oral vitamin-rich CHO 3 h before surgery). The POCD rat model was established by splenectomy under intraperitoneal injection of pentobarbital sodium. Cognitive function was assessed using the Morris water maze (MWM) after surgery. The levels of endoplasmic reticulum (ER) stress markers and apoptosis related proteins in the hippocampus were examined by western blot analysis. The vitamin-rich CHO treated animals performed better in the MWM tests than the animals in the fasting and water groups. Furthermore, preoperative CHO loading reduced ER stress and neuronal apoptosis in the hippocampus of aged rats, as indicated by the protein biomarkers of GRP78, eIF2a, Beclin1, Bax, and Bcl-2. In conclusion, preoperative vitamin-rich CHO loading could improve POCD by attenuating ER stress and neural apoptosis, providing a basis as a potential treatment against POCD. CI - Copyright (c) 2019 Elsevier B.V. All rights reserved. FAU - Zuo, Youbo AU - Zuo Y AD - Department of Anesthesiology, Xinqiao Hospital, Army Medical University, Chongqing 400037, China; Department of Anesthesiology, Affiliated Hospital of North Sichuan Medical College, Nanchong 637000, China. Electronic address: zuoyb2519@163.com. FAU - Hu, Xingping AU - Hu X AD - Department of Emergency, Affiliated Hospital of North Sichuan Medical College, Nanchong 637000, China. Electronic address: 20509200@qq.com. FAU - Yang, Qiuyan AU - Yang Q AD - Department of Emergency, Affiliated Hospital of North Sichuan Medical College, Nanchong 637000, China. Electronic address: 20509200@qq.com. FAU - Zhao, Lei AU - Zhao L AD - Department of Anesthesiology, Affiliated Hospital of North Sichuan Medical College, Nanchong 637000, China. FAU - Chen, Xueli AU - Chen X AD - Department of Anesthesiology, North Sichuan Medical College, Nanchong 637007, China. Electronic address: 1312461434@qq.com. FAU - Lin, Jiangtao AU - Lin J AD - Department of Anesthesiology, North Sichuan Medical College, Nanchong 637007, China. Electronic address: 1312461434@qq.com. FAU - Yang, Tiande AU - Yang T AD - Department of Anesthesiology, Xinqiao Hospital, Army Medical University, Chongqing 400037, China. Electronic address: YTD0925@163.com. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20190721 PL - Netherlands TA - Behav Brain Res JT - Behavioural brain research JID - 8004872 RN - 0 (Carbohydrates) RN - 0 (Vitamins) SB - IM MH - Age Factors MH - Animals MH - Apoptosis/drug effects MH - Carbohydrates/*pharmacology MH - Cognition/drug effects MH - Cognitive Dysfunction/diet therapy/metabolism MH - Diet, Carbohydrate Loading/methods MH - Endoplasmic Reticulum Stress/drug effects MH - Fasting MH - Hippocampus/metabolism MH - Male MH - Maze Learning/drug effects MH - Postoperative Cognitive Complications/*diet therapy MH - Postoperative Complications/physiopathology MH - Preoperative Care/methods MH - Rats MH - Rats, Sprague-Dawley MH - Vitamins/pharmacology OTO - NOTNLM OT - Apoptosis OT - Carbohydrate OT - Endoplasmic reticulum stress OT - Hippocampus OT - Postoperative cognitive dysfunction OT - Rats EDAT- 2019/07/25 06:00 MHDA- 2020/09/15 06:00 CRDT- 2019/07/25 06:00 PHST- 2019/02/09 00:00 [received] PHST- 2019/07/15 00:00 [revised] PHST- 2019/07/20 00:00 [accepted] PHST- 2019/07/25 06:00 [pubmed] PHST- 2020/09/15 06:00 [medline] PHST- 2019/07/25 06:00 [entrez] AID - S0166-4328(19)30218-9 [pii] AID - 10.1016/j.bbr.2019.112107 [doi] PST - ppublish SO - Behav Brain Res. 2019 Nov 5;373:112107. doi: 10.1016/j.bbr.2019.112107. Epub 2019 Jul 21.