Figure 1.

Potential mechanisms underlying the promotion of perioperative neurocognitive disorders by sleep disorders. BBB, blood–brain barrier; HO‐1, heme oxygenase‐1; M1, M1 polarization; mTORC1, mammalian target of rapamycin complex 1; NADPH, nicotinamide adenine dinucleotide phosphate hydrogen; NMDAR2A, NMDAN‐methyl‐D‐aspartate receptor 2A subunit; Nrf2, nuclear factor erythroid 2‐related factor 2; PDE4, phosphodiesterase 4; ROS, reactive oxygen species. [Color figure can be viewed at wileyonlinelibrary.com]