Does acute exacerbation of sleep apnea by hyperoxia impair cognitive flexibility in Brown-Norway rats?
Acute exacerbation of sleep related breathing disorder by hyperoxia impairs reversal learning in a rat strain with high apnea propensity, but not a strain with a low apnea propensity. This suggests a non-linear threshold effect may contribute to the relationships between sleep apnea and cognitive dysfunctions, but strain-specific differences also may be important.
Protein S-100 is present in extracerebral fluids before and after cardiac surgery in children. The time point of fluid withdrawal after the operation did not influence the protein S-100 concentration.