ERRFI1 and obstructive sleep apnea syndrome: We, therefore, conducted a systematic biological approach in order to explore possible shared pathways of action in OSA and AS, as well as new possible potential diagnostic and therapeutic targets in OSA and AS, and found that OSA and AS may be driven by a combination of immune responses and molecular changes in cell adhesion, with ERRFI1 as a key shared gene steadily declining in OSA and AS patients with a well diagnostic role.