PMID- 29532368 OWN - NLM STAT- MEDLINE DCOM- 20180918 LR - 20220330 IS - 1559-1166 (Electronic) IS - 0895-8696 (Linking) VI - 64 IP - 4 DP - 2018 Apr TI - Valproic Acid Promotes Survival of Facial Motor Neurons in Adult Rats After Facial Nerve Transection: a Pilot Study. PG - 512-522 LID - 10.1007/s12031-018-1051-0 [doi] AB - Valproic acid (VPA), a medication primarily used to treat epilepsy and bipolar disorder, has been applied to the repair of central and peripheral nervous system injury. The present study investigated the effect of VPA on functional recovery, survival of facial motor neurons (FMNs), and expression of proteins in rats after facial nerve trunk transection by functional measurement, Nissl staining, TUNEL, immunofluorescence, and Western blot. Following facial nerve injury, all rats in group VPA showed a better functional recovery, which was significant at the given time, compared with group NS. The Nissl staining results demonstrated that the number of FMNs survival in group VPA was higher than that in group normal saline (NS). TUNEL staining showed that axonal injury of facial nerve could lead to neuronal apoptosis of FMNs. But treatment of VPA significantly reduced cell apoptosis by decreasing the expression of Bax protein and increased neuronal survival by upregulating the level of brain-derived neurotrophic factor (BDNF) and growth associated protein-43 (GAP-43) expression in injured FMNs compared with group NS. Overall, our findings suggest that VPA may advance functional recovery, reduce lesion-induced apoptosis, and promote neuron survival after facial nerve transection in rats. This study provides an experimental evidence for better understanding the mechanism of injury and repair of peripheral facial paralysis. FAU - Zhang, Lili AU - Zhang L AD - Department of Otolaryngology-Head and Neck Surgery, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, 250021, China. AD - Department of Otolaryngology-Head and Neck Surgery, Yantai Affiliated Hospital of Binzhou Medical University, Yantai, 264199, China. FAU - Fan, Zhaomin AU - Fan Z AD - Department of Otolaryngology-Head and Neck Surgery, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, 250021, China. FAU - Han, Yuechen AU - Han Y AD - Department of Otolaryngology-Head and Neck Surgery, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, 250021, China. FAU - Xu, Lei AU - Xu L AD - Department of Otolaryngology-Head and Neck Surgery, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, 250021, China. FAU - Liu, Wenwen AU - Liu W AD - Shandong Provincial Key Laboratory of Otology, Jinan, 250022, China. FAU - Bai, Xiaohui AU - Bai X AD - Shandong Provincial Key Laboratory of Otology, Jinan, 250022, China. FAU - Zhou, Meijuan AU - Zhou M AD - Shandong Provincial Key Laboratory of Otology, Jinan, 250022, China. FAU - Li, Jianfeng AU - Li J AD - Shandong Provincial Key Laboratory of Otology, Jinan, 250022, China. AD - Institute of Eye and ENT, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, 250022, China. FAU - Wang, Haibo AU - Wang H AUID- ORCID: 0000-0001-8196-9291 AD - Department of Otolaryngology-Head and Neck Surgery, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, 250021, China. wang.hb7585@hotmail.com. AD - Shandong Provincial Key Laboratory of Otology, Jinan, 250022, China. wang.hb7585@hotmail.com. AD - Institute of Eye and ENT, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, 250022, China. wang.hb7585@hotmail.com. LA - eng GR - 2014CB541703/the National 973 Basic Research Program of China/ GR - 81670932/the National Natural Science Foundation of China/ PT - Journal Article DEP - 20180312 PL - United States TA - J Mol Neurosci JT - Journal of molecular neuroscience : MN JID - 9002991 RN - 0 (Brain-Derived Neurotrophic Factor) RN - 0 (GAP-43 Protein) RN - 0 (Neuroprotective Agents) RN - 614OI1Z5WI (Valproic Acid) SB - IM MH - Animals MH - Apoptosis MH - Brain-Derived Neurotrophic Factor/genetics/metabolism MH - Facial Nerve Injuries/*drug therapy MH - Female MH - GAP-43 Protein/genetics/metabolism MH - Male MH - Neurons/drug effects/metabolism MH - Neuroprotective Agents/*pharmacology/therapeutic use MH - Rats MH - Rats, Wistar MH - Valproic Acid/*pharmacology/therapeutic use OTO - NOTNLM OT - Neuronal apoptosis OT - Neuroprotective effect OT - Peripheral facial paralysis OT - Valproic acid EDAT- 2018/03/14 06:00 MHDA- 2018/09/19 06:00 CRDT- 2018/03/14 06:00 PHST- 2017/11/18 00:00 [received] PHST- 2018/02/22 00:00 [accepted] PHST- 2018/03/14 06:00 [pubmed] PHST- 2018/09/19 06:00 [medline] PHST- 2018/03/14 06:00 [entrez] AID - 10.1007/s12031-018-1051-0 [pii] AID - 10.1007/s12031-018-1051-0 [doi] PST - ppublish SO - J Mol Neurosci. 2018 Apr;64(4):512-522. doi: 10.1007/s12031-018-1051-0. Epub 2018 Mar 12.