Differential changes of glutathione levels in astrocytes and neurons in ischemic brains by two-photon imaging.

Differential changes of glutathione levels in astrocytes and neurons in ischemic brains by two-photon imaging.
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DOI:
10.1038/jcbfm.2010.9
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发表时间:
2010-04
期刊:
Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism
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Using two-photon imaging techniques with monochlorobimane as a GSH probe, we investigated GSH levels in both core and penumbra regions of an ischemic brain after middle cerebral artery occlusion. We found that the GSH level significantly decreased in the ischemic core, but increased significantly in the penumbra. Furthermore, we observed a differential change of the GSH levels in neurons and astrocytes in the penumbra. The GSH level in neurons increased significantly while it decreased slightly in astrocytes in the penumbra. These findings reveal critical region and cell type-dependent changes of the GSH level in an ischemic brain.
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