The present study established global brain ischemia using the four-vessel occlusion method. Following three rounds of reperfusion for 30 seconds, and occlusion for 10 seconds, followed by reperfusion for 48 hours, inf...The present study established global brain ischemia using the four-vessel occlusion method. Following three rounds of reperfusion for 30 seconds, and occlusion for 10 seconds, followed by reperfusion for 48 hours, infarct area, the number of TUNEL-positive cells and Bcl-2 expression were significantly reduced. However, glycogen synthase kinase-3β activity, cortical Bax and caspase-3 expression significantly increased, similar to results following ischemic postconditioning. Our results indicated that ischemic postconditioning may enhance glycogen synthase kinase-3β activity, a downstream molecule of the phosphatase and tensin homolog deleted on chromosome 10/phosphatidylinositol 3-kinase/protein kinase B signaling pathway, which reduces caspase-3 expression to protect the brain against ischemic injury.展开更多
Transient ischemic attack（TIA） is an acute cerebrovascular incident,and is generally considered the best opportunity for early neuroprotective treatment against cerebral ischemia.This study retrospectively analyzed ...Transient ischemic attack（TIA） is an acute cerebrovascular incident,and is generally considered the best opportunity for early neuroprotective treatment against cerebral ischemia.This study retrospectively analyzed 80 patients with TIA（38 males and 42 females）.Among 61 patients who received neuroprotective cerebrolysin treatment within 24 hours after TIA onset,13（21.31%） patients suffered subsequent strokes.Among 19 patients who received neuroprotective cerebrolysin treatment within 24-72 hours after TIA onset,seven（36.84%） developed cerebral infarction.There was a significant difference in the proportion of subsequent strokes between patients receiving cerebrolysin treatment within 24 hours and 24-72 hours after TIA onset（P = 0.438）.These findings suggest that neuroprotective drugs administrated within 24 hours after TIA onset help reduce the incidence of subsequent strokes.The results demonstrate usefulness of the ABCD2 score at TIA patients in the determination of short-term and long-term cerebrovascular risk,including the frequency of subsequent ischemic cerebral infarctions up to 12 months.展开更多
基金sponsored by the National Natural Science Foundation of China,No.81170768
文摘The present study established global brain ischemia using the four-vessel occlusion method. Following three rounds of reperfusion for 30 seconds, and occlusion for 10 seconds, followed by reperfusion for 48 hours, infarct area, the number of TUNEL-positive cells and Bcl-2 expression were significantly reduced. However, glycogen synthase kinase-3β activity, cortical Bax and caspase-3 expression significantly increased, similar to results following ischemic postconditioning. Our results indicated that ischemic postconditioning may enhance glycogen synthase kinase-3β activity, a downstream molecule of the phosphatase and tensin homolog deleted on chromosome 10/phosphatidylinositol 3-kinase/protein kinase B signaling pathway, which reduces caspase-3 expression to protect the brain against ischemic injury.
基金a grant from Ever Neuro Pharma GmbH, Austria, Europe
文摘Transient ischemic attack（TIA） is an acute cerebrovascular incident,and is generally considered the best opportunity for early neuroprotective treatment against cerebral ischemia.This study retrospectively analyzed 80 patients with TIA（38 males and 42 females）.Among 61 patients who received neuroprotective cerebrolysin treatment within 24 hours after TIA onset,13（21.31%） patients suffered subsequent strokes.Among 19 patients who received neuroprotective cerebrolysin treatment within 24-72 hours after TIA onset,seven（36.84%） developed cerebral infarction.There was a significant difference in the proportion of subsequent strokes between patients receiving cerebrolysin treatment within 24 hours and 24-72 hours after TIA onset（P = 0.438）.These findings suggest that neuroprotective drugs administrated within 24 hours after TIA onset help reduce the incidence of subsequent strokes.The results demonstrate usefulness of the ABCD2 score at TIA patients in the determination of short-term and long-term cerebrovascular risk,including the frequency of subsequent ischemic cerebral infarctions up to 12 months.
