PMID- 26521792 OWN - NLM STAT- MEDLINE DCOM- 20160523 LR - 20181113 IS - 2542-5641 (Electronic) IS - 0366-6999 (Print) IS - 0366-6999 (Linking) VI - 128 IP - 21 DP - 2015 Nov 5 TI - Expression of Brain-derived Neurotrophic Factor and Tyrosine Kinase B in Cerebellum of Poststroke Depression Rat Model. PG - 2926-31 LID - 10.4103/0366-6999.168058 [doi] AB - BACKGROUND: The pathophysiology of poststroke depression (PSD) remains elusive because of its proposed multifactorial nature. Accumulating evidence suggests that brain-derived neurotrophic factor (BDNF) plays a key role in the pathophysiology of depression and PSD. And the cerebellar dysfunction may be important in the etiology of depression; it is not clear whether it also has a major effect on the risk of PSD. This study aimed to explore the expression of BDNF and high-affinity receptors tyrosine kinase B (TrkB) in the cerebellum of rats with PSD. METHODS: The rat models with focal cerebral ischemic were made using a thread embolization method. PSD rat models were established with comprehensive separate breeding and unpredicted chronic mild stress (UCMS) on this basis. A normal control group, depression group, and a stroke group were used to compare with the PSD group. Thirteen rats were used in each group. Immunohistochemistry and reverse transcription-polymerase chain reaction (RT-PCR) for detecting the expression of BDNF and TrkB protein and mRNA in the cerebellum were used at the 29 th day following the UCMS. RESULTS: Compared with the normal control group and the stroke group, the number of BDNF immunoreactive (IR) positive neurons was less in the PSD group (P < 0.05). Furthermore, the number of TrkB IR positive cells was significantly less in the PSD group than that in the normal control group (P < 0.05). The gene expression of BDNF and TrkB in the cerebellum of PSD rats also decreased compared to the normal control group (P < 0.05). CONCLUSIONS: These findings suggested a possible association between expression of BDNF and TrkB in the cerebellum and the pathogenesis of PSD. FAU - Li, Yun AU - Li Y AD - Department of Neurology, The Affiliated Hospital of Dali University, Dali, Yunnan 671000, China. FAU - Peng, Chun AU - Peng C FAU - Guo, Xu AU - Guo X FAU - You, Jun-Jie AU - You JJ FAU - Yadav, Harishankar Prasad AU - Yadav HP LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - China TA - Chin Med J (Engl) JT - Chinese medical journal JID - 7513795 RN - 0 (Brain-Derived Neurotrophic Factor) RN - EC 2.7.10.1 (Protein-Tyrosine Kinases) SB - IM MH - Animals MH - Brain-Derived Neurotrophic Factor/*metabolism MH - Cerebellum/*metabolism MH - Depression/*etiology/*metabolism MH - Female MH - Protein-Tyrosine Kinases/*metabolism MH - Rats MH - Rats, Sprague-Dawley MH - Stroke/*complications PMC - PMC4756899 EDAT- 2015/11/03 06:00 MHDA- 2016/05/24 06:00 PMCR- 2015/11/05 CRDT- 2015/11/03 06:00 PHST- 2015/11/03 06:00 [entrez] PHST- 2015/11/03 06:00 [pubmed] PHST- 2016/05/24 06:00 [medline] PHST- 2015/11/05 00:00 [pmc-release] AID - ChinMedJ_2015_128_21_2926_168058 [pii] AID - CMJ-128-2926 [pii] AID - 10.4103/0366-6999.168058 [doi] PST - ppublish SO - Chin Med J (Engl). 2015 Nov 5;128(21):2926-31. doi: 10.4103/0366-6999.168058.