PMID- 25618406 OWN - NLM STAT- MEDLINE DCOM- 20160223 LR - 20181113 IS - 1469-5111 (Electronic) IS - 1461-1457 (Print) IS - 1461-1457 (Linking) VI - 18 IP - 8 DP - 2015 Jan 24 TI - Tetramethylpyrazine Produces Antidepressant-Like Effects in Mice Through Promotion of BDNF Signaling Pathway. LID - pyv010 [pii] LID - 10.1093/ijnp/pyv010 [doi] AB - BACKGROUND: Current antidepressants are clinically effective only after several weeks of administration. Tetramethylpyrazine (TMP) is an identified component of Ligusticum wallichii with neuroprotective effects. Here, we investigated the antidepressant effects of TMP in mice models of depression. METHODS: Antidepressant effects of TMP were first detected in the forced swim test (FST) and tail suspension test (TST), and further assessed in the chronic social defeat stress (CSDS) model. Changes in the brain-derived neurotrophic factor (BDNF) signaling pathway and in hippocampal neurogenesis after CSDS and TMP treatment were then investigated. A tryptophan hydroxylase inhibitor and BDNF signaling inhibitors were also used to determine the mechanisms of TMP. RESULTS: TMP exhibited potent antidepressant effects in the FST and TST without affecting locomotor activity. TMP also prevented the CSDS-induced symptoms. Moreover, TMP completely restored the CSDS-induced decrease of BDNF signaling pathway and hippocampal neurogenesis. Furthermore, a blockade of the BDNF signaling pathway prevented the antidepressant effects of TMP, while TMP produced no influence on the monoaminergic system. CONCLUSIONS: In conclusion, these data provide the first evidence that TMP has antidepressant effects, and this was mediated by promoting the BDNF signaling pathway. CI - (c) The Author 2015. Published by Oxford University Press on behalf of CINP. FAU - Jiang, Bo AU - Jiang B AD - Department of Pharmacology, Pharmacy College, Nantong University, Nantong 226001, Jiangsu, China (Drs Jiang, Huang, Chen, Tong, and Zhang). FAU - Huang, Chao AU - Huang C AD - Department of Pharmacology, Pharmacy College, Nantong University, Nantong 226001, Jiangsu, China (Drs Jiang, Huang, Chen, Tong, and Zhang). FAU - Chen, Xiang-Fan AU - Chen XF AD - Department of Pharmacology, Pharmacy College, Nantong University, Nantong 226001, Jiangsu, China (Drs Jiang, Huang, Chen, Tong, and Zhang). FAU - Tong, Li-Juan AU - Tong LJ AD - Department of Pharmacology, Pharmacy College, Nantong University, Nantong 226001, Jiangsu, China (Drs Jiang, Huang, Chen, Tong, and Zhang). FAU - Zhang, Wei AU - Zhang W AD - Department of Pharmacology, Pharmacy College, Nantong University, Nantong 226001, Jiangsu, China (Drs Jiang, Huang, Chen, Tong, and Zhang) huanghezhi36020@126.com. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20150124 PL - England TA - Int J Neuropsychopharmacol JT - The international journal of neuropsychopharmacology JID - 9815893 RN - 0 (Antidepressive Agents) RN - 0 (Brain-Derived Neurotrophic Factor) RN - 0 (Pyrazines) RN - EC 1.14.16.4 (Tryptophan Hydroxylase) RN - V80F4IA5XG (tetramethylpyrazine) SB - IM MH - Animals MH - Antidepressive Agents/*pharmacology MH - Brain-Derived Neurotrophic Factor/*metabolism MH - Depressive Disorder/*drug therapy/physiopathology MH - Disease Models, Animal MH - Hippocampus/drug effects/physiopathology MH - Male MH - Mice MH - Mice, Inbred C57BL MH - Motor Activity/physiology MH - Neurogenesis/drug effects/physiology MH - Neuropsychological Tests MH - Pyrazines/*pharmacology MH - Signal Transduction/drug effects MH - Tryptophan Hydroxylase/antagonists & inhibitors/metabolism PMC - PMC4571627 OTO - NOTNLM OT - brain-derived neurotrophic factor OT - chronic social defeat stress OT - depression OT - hippocampal neurogenesis OT - tetramethylpyrazine EDAT- 2015/01/27 06:00 MHDA- 2016/02/26 06:00 PMCR- 2015/03/06 CRDT- 2015/01/26 06:00 PHST- 2014/07/15 00:00 [received] PHST- 2015/01/22 00:00 [accepted] PHST- 2015/01/26 06:00 [entrez] PHST- 2015/01/27 06:00 [pubmed] PHST- 2016/02/26 06:00 [medline] PHST- 2015/03/06 00:00 [pmc-release] AID - pyv010 [pii] AID - 10.1093/ijnp/pyv010 [doi] PST - epublish SO - Int J Neuropsychopharmacol. 2015 Jan 24;18(8):pyv010. doi: 10.1093/ijnp/pyv010.