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Postoperative cognitive dysfunction (POCD) is a kind of serious neurologic complications and dexmedetomidine has a certain effect on POCD. However, functional mechanism of dexmedetomidine on POCD still remains unclear, so the research mainly studied the effect of dexmedetomidine on cognitive function and protein expression in hippocampus and prefrontal cortex cerebrospinal fluid after extracorporeal circulation operation in aged rats. We Found that, compared with POCD group, the cognitive function was improved in POCD + Dex group. We speculate that dexmedetomidine could improve the cognitive function after extracorporeal circulation operation in aged rats and Aβ, p-Tau, and PSD95 protein might have contributed to this favorable outcome.

biomed research international

The Effect of Dexmedetomidine on Cognitive Function and Protein Expression of Aβ, p-Tau, and PSD95 after Extracorporeal Circulation Operation in Aged Rats