脑缺血时兴奋性氨基酸递质释放和Ｃａ２＋动员与神经细胞损伤密切相关。已证实，地塞米松可能通过这两个环节加重缺血性神经元损伤。该实验进一步观察了地塞米松对缺血诱导的沙土鼠海马去极化以及缺氧诱导的细胞内Ｃａ２＋浓度（［Ｃａ２＋］ｉ）增加的影响。方法与结果实... Excitatory amino acid neurotransmitter release and Ca2 + mobilization during cerebral ischemia are closely related to nerve cell injury. It has been demonstrated that dexamethasone may aggravate ischemic neuronal damage through both phases. This experiment further examined the effect of dexamethasone on hippocampal depolarization induced by ischemia and the hypoxia-induced increase of intracellular Ca2 + concentration ([Ca2 +] i). Methods and Results ...