PMID- 30946940 OWN - NLM STAT- MEDLINE DCOM- 20200214 LR - 20200214 IS - 1878-4216 (Electronic) IS - 0278-5846 (Linking) VI - 93 DP - 2019 Jul 13 TI - Early intervention with electroacupuncture prevents PTSD-like behaviors in rats through enhancing hippocampal endocannabinoid signaling. PG - 171-181 LID - S0278-5846(19)30005-3 [pii] LID - 10.1016/j.pnpbp.2019.03.018 [doi] AB - Electroacupuncture (EA) is a clinically useful physiological therapy that has been recently adopted to treat several brain disorders. However, the potential role of early EA intervention in the prevention of posttraumatic stress disorder (PTSD) as well as its potential cellular and molecular mechanism has never been investigated previously. In the present study, we used an enhanced single prolonged stress (ESPS) model to access the effects of early EA intervention on the prevention of anxiety-like and fear learning behaviors, as well as the influence of the expression of post-synaptic density protein 95 (PSD95), synaptophysin (Syn), brain derived neurotrophic factor (BDNF), diacylglycerol lipase alpha (DAGLalpha) and cannabinoid type 1 receptor (CB1R) in the hippocampus with or without DAGLalpha or CB1R knockdown by a short hairpin RNA (shRNA) in the hippocampus. Moreover, the effects of electrical stimulation with different parameters on the expression of DAGLalpha and CB1R in the hippocampal astrocytes were also observed. The results showed that Early EA intervention improved hippocampal synaptic plasticity and ameliorated PTSD-like behaviors and also increased expression of BDNF, DAGLalpha and CB1R. However, either DAGLalpha or CB1R knockdown by a short hairpin RNA (shRNA) eliminated the neuroprotective effects of early EA intervention. Furthermore, electrical stimulation with 2/15 Hz 1 mA elevated the expression of DAGLalpha and CB1R. Altogether, our findings provide new insights regarding the possibility of using early EA intervention in the prevention of PTSD, and the protective effects of EA is involving the activation of DAGLalpha and CB1R. CI - Copyright (c) 2019 Elsevier Inc. All rights reserved. FAU - Xue, Fen AU - Xue F AD - Department of Psychiatry, Xijing Hospital, Fourth Military Medical University, Xi'an 710032, China. FAU - Xue, Shan-Shan AU - Xue SS AD - Department of Psychiatry, Xijing Hospital, Fourth Military Medical University, Xi'an 710032, China. FAU - Liu, Ling AU - Liu L AD - Institution of Neuroscience, Fourth Military Medical University, Xi'an 710032, China. FAU - Sang, Han-Fei AU - Sang HF AD - Department of Anesthesiology, Xiang'an Hospital, Xiamen University, Xiamen 361101, China. FAU - Ma, Quan-Rui AU - Ma QR AD - Department of Human Anatomy and Histology and Embryology, Basic Medical College, Ningxia Medical University, Yinchuan 750004, China. FAU - Tan, Qing-Rong AU - Tan QR AD - Department of Psychiatry, Xijing Hospital, Fourth Military Medical University, Xi'an 710032, China. FAU - Wang, Hua-Ning AU - Wang HN AD - Department of Psychiatry, Xijing Hospital, Fourth Military Medical University, Xi'an 710032, China. FAU - Zhou, Cui-Hong AU - Zhou CH AD - Department of Psychiatry, Xijing Hospital, Fourth Military Medical University, Xi'an 710032, China. Electronic address: zhouch4610@163.com. FAU - Peng, Zheng-Wu AU - Peng ZW AD - Department of Psychiatry, Xijing Hospital, Fourth Military Medical University, Xi'an 710032, China. Electronic address: pengzw@fmmu.edu.cn. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20190401 PL - England TA - Prog Neuropsychopharmacol Biol Psychiatry JT - Progress in neuro-psychopharmacology & biological psychiatry JID - 8211617 RN - 0 (Endocannabinoids) SB - IM MH - Animals MH - Blotting, Western MH - Disease Models, Animal MH - *Electroacupuncture/methods MH - Endocannabinoids/*metabolism MH - Hippocampus/*metabolism MH - Male MH - Maze Learning MH - Neuronal Plasticity MH - Neuropsychological Tests MH - Rats MH - Rats, Sprague-Dawley MH - Real-Time Polymerase Chain Reaction MH - Signal Transduction MH - Stress Disorders, Post-Traumatic/*prevention & control/therapy OTO - NOTNLM OT - Early intervention OT - Electroacupuncture OT - Endocannabinoid system OT - Hippocampus OT - PTSD EDAT- 2019/04/05 06:00 MHDA- 2020/02/15 06:00 CRDT- 2019/04/05 06:00 PHST- 2019/01/04 00:00 [received] PHST- 2019/03/20 00:00 [revised] PHST- 2019/03/29 00:00 [accepted] PHST- 2019/04/05 06:00 [pubmed] PHST- 2020/02/15 06:00 [medline] PHST- 2019/04/05 06:00 [entrez] AID - S0278-5846(19)30005-3 [pii] AID - 10.1016/j.pnpbp.2019.03.018 [doi] PST - ppublish SO - Prog Neuropsychopharmacol Biol Psychiatry. 2019 Jul 13;93:171-181. doi: 10.1016/j.pnpbp.2019.03.018. Epub 2019 Apr 1.