[Retracted] κ-Opioid Receptor Agonist Ameliorates Postoperative Neurocognitive Disorder by Activating the Ca²⁺/CaMKII/CREB Pathway

Figure 1

The KOR agonist ameliorated brain injury and alleviated PND in CPB rats. (a) Water maze test. (b) HE staining. (c) The brain injury markers detected by ELISA. ^∗ < 0.05.

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