OSA	Obstructive sleep apnea
BBB	Blood–brain barrier
PSG	Polysomnography
OSA-NC(−)	OSA without cognitive deficits
OSA-NC(+)	OSA with cognitive deficits
AHI	Apnea–hypopnea index
HCAEC	Human coronary artery endothelial cells
HIAEC	Human iliac artery endothelial cells
HMVEC-D	Human dermal microvascular endothelial cells
HMVEC-C	Human cardiac microvascular endothelial cells
HMVEC-L	Human lung microvascular endothelial cells
hCMEC/D3	Human brain microvascular endothelial cell
ECIS	Electric cell–substrate impedance sensing
BMI	Body mass index
CNS	Central nervous system
FMI	Median, fluorescence intensity