Why are brain neurons so much more susceptible to ischemic injurythan, say, muscle or skin tissue? A clue is provided by workshowing that the activation of neuronal acid-sensing ion channel1 (ASIC1) can lead to neuronal death.1,2,3 A recent study byXiong et al.3 places this observation in the context of strokeby showing that the activation of ASIC1 during the metabolicacidosis accompanying experimental stroke contributes substantiallyto subsequent brain injury.
Excessive loading of calcium into neurons through N-methyl-D-aspartate(NMDA) receptors and voltage-dependent calcium channels is thoughtto be one of the triggers of neuronal injury . . . [Full Text of this Article]
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From the Department of Physiology and Pharmacology, Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel (M.B.); and the Department of Pharmacology, Emory University School of Medicine, Atlanta (M.B., R.D.).
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