Boosting Endogenous Resistance of Brain to Ischemia.

Boosting Endogenous Resistance of Brain to Ischemia.
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增强大脑对缺血的内源性抵抗力。

DOI:
10.1007/s12035-016-9796-3
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发表时间:
2017
影响因子:
5.1
通讯作者:
Uteshev,VictorV
Uteshev,VictorV
中科院分区:
医学2区
文献类型:
--
作者:
Sun,Fen;Johnson,StephenR;Jin,Kunlin;Uteshev,VictorV

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Most survivors of ischemic stroke remain physically disabled and require prolonged rehabilitation. However, some stroke victims achieve a full neurological recovery suggesting that the human brain can defend itself against ischemic injury, but the protective mechanisms are unknown. This study used selective pharmacological agents and a rat model of cerebral ischemic stroke to detect endogenous brain protective mechanisms that require activation of α7 nicotinic acetylcholine receptors (nAChRs). This endogenous protection was found to be (1) limited to less severe injuries; (2) significantly augmented by intranasal administration of a positive allosteric modulator of α7 nAChRs, significantly reducing brain injury and neurological deficits after more severe ischemic injuries; and (3) reduced by inhibition of calcium/calmodulin-dependent kinase-II. The physiological role of α7 nAChRs remains largely unknown. The therapeutic activation of α7 nAChRs after cerebral ischemia may serve as an important physiological responsibility of these ubiquitous receptors and holds a significant translational potential.
识别接受 m-BACOD 或 M-BACOD 治疗的大细胞淋巴瘤患者的主要预后亚组。
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