脑红蛋白减轻缺氧缺血性脑损伤的机制研究进展

摘要

Neuroglobin is involved in neuroprotection from damage due to hypoxia or ischemia in vitro and in vivo.Overexpression of neuroglobin ameliorates the recovery from hypoxia-ischemia brain injury in experimental animals.The mechanism is still unknown.Studies have revealed that neuroglobin has a typical globin fold,and despite being hexacoordinated,which binds reversibly O2,CO2,and NO.This article reviews the possible mechanisms involved in neuroprotection of neuroglobin and provide a clue in treatment of hypoxia-ischemia brain injury.%研究表明脑红蛋白在缺氧或缺血情况下发挥着极其重要的神经保护作用,其过表达可明显改善缺氧缺血性脑损伤的预后.然而,脑红蛋白所起神经保护作用的潜在机制仍未明了.脑红蛋白功能可能与其典型的球蛋白结构特征并能可逆性地结合氧分子、二氧化碳、一氧化氮分子等密切相关.该文对脑红蛋白的神经保护作用的分子机制进行综述,以期为缺氧缺血性脑损伤的临床治疗提供新思路.