Persistent cognitive dysfunction after traumatic brain injury: A dopamine hypothesis.

Persistent cognitive dysfunction after traumatic brain injury: A dopamine hypothesis.
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创伤性脑损伤后持续的认知功能障碍:多巴胺假说。

DOI:
10.1016/j.neubiorev.2009.03.011
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发表时间:
2009-07
影响因子:
8.2
通讯作者:
Dixon, C. Edward
Dixon, C. Edward
中科院分区:
医学1区
文献类型:
--
作者:
Bales, James W.;Wagner, Amy K.;Kline, Anthony E.;Dixon, C. Edward

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在工业化国家,创伤性脑损伤是导致死亡和残疾的重要原因。对患者尤其重要的是脑外伤对认知功能的慢性影响。由于颅脑损伤人群中损伤的复杂性和患者表现的多样性,治疗策略一直难以评估。然而,针对多巴胺(DA)的药物治疗一直显示出在注意力、行为结果、执行功能和记忆方面的好处。然而,目前尚不清楚DA疗法针对的是脑外伤病理的哪个方面,以及什么时间疗程对患者的预后最有利。幸运的是,正在进行的动物模型研究已经开始阐明脑外伤后DA改变的病理生理学。本文就颅脑损伤后多巴胺能治疗的临床和实验研究进行综述,以阐明DA在脑外伤后认知功能/功能障碍中的重要性,并指出有待进一步研究的领域。
Traumatic brain injury (TBI) represents a significant cause of death and disability in industrialized countries. Of particular importance to patients the chronic effect that TBI has on cognitive function. Therapeutic strategies have been difficult to evaluate because of the complexity of injuries and variety of patient presentations within a TBI population. However, pharmacotherapies targeting dopamine (DA) have consistently shown benefits in attention, behavioral outcome, executive function, and memory. Still it remains unclear what aspect of TBI pathology is targeted by DA therapies and what time-course of treatment is most beneficial for patient outcomes. Fortunately, ongoing research in animal models has begun to elucidate the pathophysiology of DA alterations after TBI. The purpose of this review is to discuss clinical and experimental research examining DAergic therapies after TBI, which will in turn elucidate the importance of DA for cognitive function/dysfunction after TBI as well as highlight the areas that require further study.
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