清醒
增食欲素
嗜睡症
外侧下丘脑
神经科学
持续植物状态
医学
网状激活系统
创伤性脑损伤
下丘脑
心理学
神经学
内科学
意识
网状结构
中枢神经系统
精神科
最小意识状态
脑电图
神经肽
受体
作者
Huiling Tang,Qiumei Zhu,Wei Li,Siru Qin,Yinan Gong,Hong Wang,Seiji Shioda,Shanshan Li,Jin Huang,Baohu Liu,Yuxin Fang,Yangyang Liu,Shenjun Wang,Yongming Guo,Qing Xia,Yi Guo,Zhifang Xu
标识
DOI:10.2174/1381612825666191029101830
摘要
Traumatic brain injury (TBI) can cause disorders of consciousness (DOC) by impairing the neuronal circuits of the ascending reticular activating system (ARAS) structures, including the hypothalamus, which are responsible for the maintenance of the wakefulness and awareness. However, the effectiveness of drugs targeting ARAS activation is still inadequate, and novel therapeutic modalities are urgently needed.The goal of this work is to describe the neural loops of wakefulness, and explain how these elements participate in DOC, with emphasis on the identification of potential new therapeutic options for DOC induced by TBI.Hypothalamus has been identified as a sleep/wake center, and its anterior and posterior regions have diverse roles in the regulation of the sleep/wake function. In particular, the posterior hypothalamus (PH) possesses several types of neurons, including the orexin neurons in the lateral hypothalamus (LH) with widespread projections to other wakefulness-related regions of the brain. Orexins have been known to affect feeding and appetite, and recently their profound effect on sleep disorders and DOC has been identified. Orexin antagonists are used for the treatment of insomnia, and orexin agonists can be used for narcolepsy. Additionally, several studies demonstrated that the agonists of orexin might be effective in the treatment of DOC, providing novel therapeutic opportunities in this field.The hypothalamic-centered orexin has been adopted as the point of entry into the system of consciousness control, and modulators of orexin signaling opened several therapeutic opportunities for the treatment of DOC.
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