Abstract:
:We have previously shown that P7 rat pups injected with the N-methyl-d-aspartate receptor (NMDAR) blocker MK801 displayed robust apoptotic injury within hours after injection. Further studies from our lab suggest that loss of calcium cannot be compensated for when vulnerable neurons lack calcium buffering capabilities. Thus, to elevate calcium in these neurons prior to MK801 exposure, we injected P7 rats with the calcium channel agonist BayK 8644. Whereas BayK 8644 did not induce apoptosis by itself, it was found to block MK801-induced injury in a dose-dependent manner. Reversal of MK801 toxicity was complete in the caudate-putamen, partial in the somatosensory cortex but was not observed in the retrosplenial cortex. These results suggest that postnatal brain injury resulting from agents that block the NMDAR, which include commonly used anesthetics as well as drugs of abuse, may be prevented in vulnerable neurons by compensatory increases in calcium prior to exposure to these antagonists.
journal_name
Neurosci Lettjournal_title
Neuroscience lettersauthors
Turner CP,Debenedetto D,Liu Cdoi
10.1016/j.neulet.2008.12.002subject
Has Abstractpub_date
2009-02-06 00:00:00pages
292-5issue
3eissn
0304-3940issn
1872-7972pii
S0304-3940(08)01685-6journal_volume
450pub_type
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journal_title:Neuroscience letters
pub_type: 杂志文章
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更新日期:2002-10-25 00:00:00
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journal_title:Neuroscience letters
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journal_title:Neuroscience letters
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journal_title:Neuroscience letters
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更新日期:2007-06-15 00:00:00
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journal_title:Neuroscience letters
pub_type: 杂志文章
doi:
更新日期:1996-09-06 00:00:00
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pub_type: 杂志文章
doi:10.1016/j.neulet.2015.04.038
更新日期:2015-06-15 00:00:00
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journal_title:Neuroscience letters
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doi:10.1016/j.neulet.2004.04.011
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journal_title:Neuroscience letters
pub_type: 杂志文章
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更新日期:2015-08-31 00:00:00
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journal_title:Neuroscience letters
pub_type: 杂志文章,随机对照试验
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更新日期:2012-08-08 00:00:00
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pub_type: 杂志文章
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pub_type: 杂志文章
doi:10.1016/s0304-3940(00)01743-2
更新日期:2001-02-02 00:00:00
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pub_type: 杂志文章
doi:10.1016/0304-3940(86)90043-1
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journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/j.neulet.2012.07.027
更新日期:2012-09-06 00:00:00
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journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/0304-3940(80)90287-6
更新日期:1980-10-02 00:00:00
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journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/0304-3940(89)90308-x
更新日期:1989-07-17 00:00:00
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journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/s0304-3940(00)01363-x
更新日期:2000-09-01 00:00:00
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journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/0304-3940(87)90122-4
更新日期:1987-11-23 00:00:00