PMID- 28764934 OWN - NLM STAT- MEDLINE DCOM- 20180518 LR - 20211204 IS - 1872-6240 (Electronic) IS - 0006-8993 (Linking) VI - 1672 DP - 2017 Oct 1 TI - Effects of anterior thalamic nuclei deep brain stimulation on neurogenesis in epileptic and healthy rats. PG - 65-72 LID - S0006-8993(17)30319-0 [pii] LID - 10.1016/j.brainres.2017.07.021 [doi] AB - BACKGROUND: The efficacy of anterior thalamic nuclei (ANT) deep brain stimulation (DBS) in mitigating epileptic seizures has been established. Though the neuroprotection of ANT-DBS has been illustrated, the seizure mitigating mechanism of ANT-DBS has not been thoroughly elucidated. In particular, the effect of ANT-DBS on neurogenesis has not been reported previously. METHOD: Thirty-two male Sprague Dawley rats were randomly assigned to the following groups: sham-DBS-healthy (HL) (n=8), DBS-HL (n=8), sham-DBS-epilepsy (EP) (n=8) and DBS-EP (n=8). Normal saline and kainic acid were injected, respectively, into the former and later two groups, and seizures were monitored. One month later, rats received electrode implantation. Stimulation was exerted in the DBS group but not in the sham-DBS group. Next, all rats were sacrificed, and the ipsilateral hippocampus was dissected and prepared for quantitative real time PCR (qPCR) and western blot analysis in order to measure neuronal nuclear (NeuN), brain-derived neurotrophic factor (BDNF), doublecortin (DCX) and Ki-67 expressions. RESULTS: A 44.4% seizure frequency reduction was obtained after ANT-DBS, and no seizures was observed in healthy rats. NeuN, BDNF, Ki-67 and DCX expression levels were significantly decreased in the epileptic rats compared to healthy rats (P<0.01 or P<0.05). Obvious increases in NeuN, Ki-67 and DCX expressions were observed in epileptic and healthy rats receiving stimulation compared to rats receiving no stimulation (all Ps<0.01). However, BDNF expression was not affected by ANT-DBS (all Ps>0.05). CONCLUSIONS: (1) ANT-DBS reduces neuronal loss during the chronic stage of epilepsy. (2) Neurogenesis is elevated by ANT-DBS in both epileptic and healthy rats, and this elevation may not be regulated via a BDNF pathway. CI - Copyright (c) 2017. Published by Elsevier B.V. FAU - Chen, Ying-Chuan AU - Chen YC AD - Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing 100050, China. Electronic address: chenyingchuancyc@163.com. FAU - Shi, Lin AU - Shi L AD - Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing 100050, China. Electronic address: shilin2015@foxmail.com. FAU - Zhu, Guan-Yu AU - Zhu GY AD - Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing 100050, China. Electronic address: 375449969@qq.com. FAU - Wang, Xiu AU - Wang X AD - Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing 100050, China. Electronic address: 805064590@qq.com. FAU - Liu, De-Feng AU - Liu DF AD - Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing 100050, China. Electronic address: liudefeng0926@foxmail.com. FAU - Liu, Yu-Ye AU - Liu YY AD - Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing 100050, China. Electronic address: break_go_1217@126.com. FAU - Jiang, Yin AU - Jiang Y AD - Department of Functional Neurosurgery, Beijing Neurosurgical Institute, Capital Medical University, Beijing 100050, China. Electronic address: jiangyin0802@foxmail.com. FAU - Zhang, Xin AU - Zhang X AD - Department of Functional Neurosurgery, Beijing Neurosurgical Institute, Capital Medical University, Beijing 100050, China. Electronic address: zxin05@126.com. FAU - Zhang, Jian-Guo AU - Zhang JG AD - Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing 100050, China; Department of Functional Neurosurgery, Beijing Neurosurgical Institute, Capital Medical University, Beijing 100050, China; Beijing Key Laboratory of Neurostimulation, Beijing 100050, China. Electronic address: zjguo73@126.com. LA - eng PT - Journal Article DEP - 20170729 PL - Netherlands TA - Brain Res JT - Brain research JID - 0045503 RN - 0 (Brain-Derived Neurotrophic Factor) RN - 0 (Dcx protein, rat) RN - 0 (Doublecortin Domain Proteins) RN - 0 (Doublecortin Protein) RN - 0 (Ki-67 Antigen) RN - 0 (Microtubule-Associated Proteins) RN - 0 (Neuropeptides) SB - IM MH - Animals MH - Anterior Thalamic Nuclei/metabolism/*physiology MH - Brain-Derived Neurotrophic Factor/analysis MH - Deep Brain Stimulation/*methods MH - Doublecortin Domain Proteins MH - Doublecortin Protein MH - Electrodes, Implanted MH - Epilepsy/*therapy MH - Hippocampus MH - Ki-67 Antigen/analysis MH - Male MH - Microtubule-Associated Proteins/analysis MH - Neurogenesis/physiology MH - Neuropeptides/analysis MH - Rats MH - Rats, Sprague-Dawley MH - Seizures/therapy OTO - NOTNLM OT - Anterior thalamic nuclei OT - Deep brain stimulation OT - Epilepsy OT - Neurogenesis OT - Neuronal loss EDAT- 2017/08/03 06:00 MHDA- 2018/05/19 06:00 CRDT- 2017/08/03 06:00 PHST- 2017/06/13 00:00 [received] PHST- 2017/07/23 00:00 [revised] PHST- 2017/07/24 00:00 [accepted] PHST- 2017/08/03 06:00 [pubmed] PHST- 2018/05/19 06:00 [medline] PHST- 2017/08/03 06:00 [entrez] AID - S0006-8993(17)30319-0 [pii] AID - 10.1016/j.brainres.2017.07.021 [doi] PST - ppublish SO - Brain Res. 2017 Oct 1;1672:65-72. doi: 10.1016/j.brainres.2017.07.021. Epub 2017 Jul 29.