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

Figure 5

The KOR agonist ameliorated PND through the Ca²⁺/CaMKII/CREB pathway. (a) The brain injury markers and Glu level detected by ELISA. (b) TUNEL staining. (c) The expression of BDNF detected by IF. (d) Water maze test. ^∗ < 0.05.

(a)

(b)

(c)

(d)