Does wnt/β-catenin signaling modulate human airway sensitization induced by β2-adrenoceptor stimulation?
Collectively, our pharmacological investigations indicate that fenoterol-sensitization is modulated by the inhibition/blockage of canonical Wnt/β-catenin pathway, suggesting a phenomenon of biased agonism in connection with the β2-adrenoceptor stimulation. Future experiments based on the results of the present study will be needed to determine the impact of prolonged fenoterol exposure on the extra- and intracellular Wnt signaling pathways at the protein expression level.
The findings suggest that attenuation of REM sleep phasic activity after stress exposure may reflect adaptive regulation of waking emotional arousal. Mediation and moderation models are more informative than traditional bivariate approaches to investigating the relation between stress exposure and sleep alterations.