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(接本刊 2 0 0 3年第 1期第 4 2页 )6 神经元内钙超载的毒性作用神经元内钙总含量和细胞外液浓度相似 (1ｍｍｏｌ/Ｌ) ,但静息状态细胞内游离钙浓度 ([Ｃａ2 + ]ｉ)仅 10 0ｎｍｏｌ/Ｌ左右。比细胞内总钙和细胞外钙低10 0 0 0倍。这是因为大多数钙储存在细胞器内 ,细胞膜对Ｃ
(Then issue 2003 No. 1 page 4 2) 6 neurotoxic effects of intracellular calcium overload neurons intracellular total calcium concentration and extracellular fluid concentrations (1mmol / L), but the resting state intracellular Free calcium concentration ([Ca2 +] i) only about 10nmol / L or so. Lower than the total intracellular calcium and extracellular calcium 100000 times. This is because most of the calcium is stored in organelles, the cell membrane to C