Inhaled carbon monoxide provides cerebral cytoprotection in pigs.
Inhaled carbon monoxide provides cerebral cytoprotection in pigs.
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DOI:
10.1371/journal.pone.0041982
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发表时间:
2012
期刊:
影响因子:
3.7
通讯作者:
Pigula FA
中科院分区:
文献类型:
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作者:
Mahan VL;Zurakowski D;Otterbein LE;Pigula FA
Carbon monoxide (CO) at low concentrations imparts protective effects in numerous preclinical small animal models of brain injury. Evidence of protection in large animal models of cerebral injury, however, has not been tested. Neurologic deficits following open heart surgery are likely related in part to ischemia reperfusion injury that occurs during cardiopulmonary bypass surgery. Using a model of deep hypothermic circulatory arrest (DHCA) in piglets, we evaluated the effects of CO to reduce cerebral injury. DHCA and cardiopulmonary bypass (CPB) induced significant alterations in metabolic demands, including a decrease in the oxygen/glucose index (OGI), an increase in lactate/glucose index (LGI) and a rise in cerebral blood pressure that ultimately resulted in increased cell death in the neocortex and hippocampus that was completely abrogated in piglets preconditioned with a low, safe dose of CO. Moreover CO-treated animals maintained normal, pre-CPB OGI and LGI and corresponding cerebral sinus pressures with no change in systemic hemodynamics or metabolic intermediates. Collectively, our data demonstrate that inhaled CO may be beneficial in preventing cerebral injury resulting from DHCA and offer important therapeutic options in newborns undergoing DHCA for open heart surgery.
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影响因子:
4.8
作者:
Dallas, Mark L.;Boyle, John P.;Peers, Chris
通讯作者:
Peers, Chris
影响因子:
4.6
作者:
Abu-Amara, Mahmoud;Yang, Shi Yu;Davidson, Brian
通讯作者:
Davidson, Brian
影响因子:
6.9
作者:
Li Y;Yu SP;Mohamad O;Genetta T;Wei L
通讯作者:
Wei L
影响因子:
9
作者:
通讯作者:
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DOI:
10.1038/jcbfm.2008.109
发表时间:
2009-01
期刊:
Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism
影响因子:
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作者:
通讯作者:
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