Fig. 3From: Altered irisin/BDNF axis parallels excessive daytime sleepiness in obstructive sleep apnea patientsScatter plots of serum BDNF versus serum irisin levels. Locations of model-estimated significant increase of ESS in response to a unit increase in serum irisin (Panel a) and serum BDNF (Panel b) are indicated by filled circles. Symbol sizes are proportional to effect magnitudeBack to article page