The phosphorylation of STAT6 during ischemic reperfusion in rat cerebral cortex.

For many years, brain ischemia has been known to be a leading cause of adult neurological disorder. In particular, many reports have shown that hyperexcitability of neurons and inflammatory response of the glia induced by ischemic reperfusion (I/R) determine the fate of cells in the ischemic core and the penumbra region. Although there are many reports on the activation and roles of signal transducer and activator of transcription proteins and during hyperexcitation in the neuron and inflammation occurring following I/R, the temporal and spatial activation of protein in the ischemic cortex still remain elusive. In this study, using a transient rat middle cerebral artery occlusion model, we primarily investigated the time-course expression of the phosphorylated duanyu18136 in the ischemic core region following I/R, which was compared with that of We found that significantly decreases at 1 and 12 h following I/R, whereas markedly increases at each follow-up time point. In addition, the level of pduanyu18136 is reduced in the ischemic core in comparison with the penumbra region at 12 h following I/R. However, there is no significant difference in pduanyu18133 expression between the ischemic core and the penumbra. Taken together, our data suggest that pduanyu18136 and pduanyu18133 are modulated differently following I/R during ischemic stroke.

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