کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4349345 | 1296937 | 2007 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Temperature-dependent N-methyl-d-aspartate receptor-mediated cytotoxicity in cultured rat cortical neurons
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کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری
علم عصب شناسی
علوم اعصاب (عمومی)
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چکیده انگلیسی
Hypothermia protects against hypoxic or ischemic damage. However, the mechanisms by which brain cooling prevents hypoxic or ischemic damage are not clear. We examined whether hypothermia protects against excitotoxicity in cultured cortical cells. Exposure of cortical cell culture to 500 μM N-methyl-d-aspartate (NMDA) for 15 min at 32 °C or 37 °C did not induce neurotoxicity. On the other hand, reduction of temperature to 20 °C resulted in widespread neuronal disintegration by the following day. Moreover, intracellular calcium concentration increased markedly by adding NMDA to cells at 20 °C. These results suggest that profound hypothermia does not protect neurons from excitotoxicity by inhibiting NMDA receptor activity.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Neuroscience Letters - Volume 423, Issue 1, 9 August 2007, Pages 24–28
Journal: Neuroscience Letters - Volume 423, Issue 1, 9 August 2007, Pages 24–28
نویسندگان
Tsuneo Takadera, Takao Ohyashiki,