دورية أكاديمية
Amantadine ameliorates dopamine-releasing deficits and behavioral deficits in rats after fluid percussion injury.
| العنوان: | Amantadine ameliorates dopamine-releasing deficits and behavioral deficits in rats after fluid percussion injury. |
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| المؤلفون: | Eagle Yi-Kung Huang, Pi-Fen Tsui, Tung-Tai Kuo, Jing-Jr Tsai, Yu-Ching Chou, Hsin-I Ma, Yung-Hsiao Chiang, Yuan-Hao Chen |
| المصدر: | PLoS ONE, Vol 9, Iss 1, p e86354 (2014) |
| بيانات النشر: | Public Library of Science (PLoS), 2014. |
| سنة النشر: | 2014 |
| المجموعة: | LCC:Medicine LCC:Science |
| مصطلحات موضوعية: | Medicine, Science |
| الوصف: | AIMS: To investigate the role of dopamine in cognitive and motor learning skill deficits after a traumatic brain injury (TBI), we investigated dopamine release and behavioral changes at a series of time points after fluid percussion injury, and explored the potential of amantadine hydrochloride as a chronic treatment to provide behavioral recovery. MATERIALS AND METHODS: In this study, we sequentially investigated dopamine release at the striatum and behavioral changes at 1, 2, 4, 6, and 8 weeks after fluid percussion injury. Rats subjected to 6-Pa cerebral cortical fluid percussion injury were treated by using subcutaneous infusion pumps filled with either saline (sham group) or amantadine hydrochloride, with a releasing rate of 3.6 mg/kg/hour for 8 weeks. The dopamine-releasing conditions and metabolism were analyzed sequentially by fast scan cyclic voltammetry (FSCV) and high-pressure liquid chromatography (HPLC). Novel object recognition (NOR) and fixed-speed rotarod (FSRR) behavioral tests were used to determine treatment effects on cognitive and motor deficits after injury. RESULTS: Sequential dopamine-release deficits were revealed in 6-Pa-fluid-percussion cerebral cortical injured animals. The reuptake rate (tau value) of dopamine in injured animals was prolonged, but the tau value became close to the value for the control group after amantadine therapy. Cognitive and motor learning impairments were shown evidenced by the NOR and FSRR behavioral tests after injury. Chronic amantadine therapy reversed dopamine-release deficits, and behavioral impairment after fluid percussion injuries were ameliorated in the rats treated by using amantadine-pumping infusion. CONCLUSION: Chronic treatment with amantadine hydrochloride can ameliorate dopamine-release deficits as well as cognitive and motor deficits caused by cerebral fluid-percussion injury. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 1932-6203 |
| Relation: | http://europepmc.org/articles/PMC3907421?pdf=render; https://doaj.org/toc/1932-6203 |
| DOI: | 10.1371/journal.pone.0086354 |
| URL الوصول: | https://doaj.org/article/77587b84a2414e93b7fdc661571a2e9a |
| رقم الأكسشن: | edsdoj.77587b84a2414e93b7fdc661571a2e9a |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 19326203 |
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| DOI: | 10.1371/journal.pone.0086354 |