کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6279572 | 1615079 | 2016 | 13 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
7,8-dihydroxyflavone protects 6-OHDA and MPTP induced dopaminergic neurons degeneration through activation of TrkB in rodents
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کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری
علم عصب شناسی
علوم اعصاب (عمومی)
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چکیده انگلیسی
Brain-derived neurotrophic factor (BDNF) is a notably important neurotrophin which regulates neuronal survival and differentiation in the nervous system. However, its clinical usage is particularly limited. 7,8-dihydroxyflavone (7,8-DHF), which acts as a selective agonist of BDNF receptor TrkB, is reported to possess neuroprotective effects both in vitro and in vivo. Here we explored the potent neuroprotective effects of 7,8-DHF in 6-OHDA induced rat and MPTP induced mouse model of Parkinsonism. The results demonstrated that treatment with 7,8-DHF in drinking water for four weeks (two weeks before 6-OHDAÂ +Â two weeks after 6-OHDA lesion) significantly improved dopamine-mediated behaviors in 6-OHDA rat model, and prevented the loss of dopaminergic neurons in the substantia nigra (SN). Phospho-Y816-TrkB immunostaining showed that TrkB phosphorylation was significantly elevated in the SN in 7,8-DHF pretreated group, indicating 7,8-DHF activated TrkB and likely contributed to its neuroprotective effects. 7,8-DHF also protected acute MPTP neurotoxicity in mice but did not affect the climbing behavior in pole test. Thus our study indicates the neuroprotective properties of 7,8-DHF through the activation of TrkB, which provides a novel therapeutic treatment for Parkinson's disease.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Neuroscience Letters - Volume 620, 4 May 2016, Pages 43-49
Journal: Neuroscience Letters - Volume 620, 4 May 2016, Pages 43-49
نویسندگان
Dandan Luo, Ying Shi, Jun Wang, Qing Lin, Yi Sun, Keqiang Ye, Qiao Yan, Hai Zhang,