Obstructive sleep apnea(OSA)is a dis-order characterized by chronic intermittent hypoxia and sleep fragmentation,usually manifested by ob-struction of the upper respiratory tract,resulting in sleep fragmentation,intermittent hypoxia,and hy-percapnia.OSA and significant comorbidities are as-sociated with perioperative complications.Opioids,as the most commonly used pain relievers,may fur-ther affect perioperative pain management in OSA and comorbidities.Studies have shown that OSA patients are more susceptible to the respiratory de-pressant effects of opioids.OSA also increases the risk of opioid-induced respiratory depression.There-fore,understanding the effects and mechanisms of opioids on OSA has important clinical significance for optimizing drug use,improving prognosis,and reducing respiratory adverse events.This article aims to review the effects of opioids on OSA and their relationship.

Obstructive sleep apnea(OSA)is a dis-order characterized by chronic intermittent hypoxia and sleep fragmentation,usually manifested by ob-struction of the upper respiratory tract,resulting in sleep fragmentation,intermittent hypoxia,and hy-percapnia.OSA and significant comorbidities are as-sociated with perioperative complications.Opioids,as the most commonly used pain relievers,may fur-ther affect perioperative pain management in OSA and comorbidities.Studies have shown that OSA patients are more susceptible to the respiratory de-pressant effects of opioids.OSA also increases the risk of opioid-induced respiratory depression.There-fore,understanding the effects and mechanisms of opioids on OSA has important clinical significance for optimizing drug use,improving prognosis,and reducing respiratory adverse events.This article aims to review the effects of opioids on OSA and their relationship.

microRNA(miRNA)is a 22nt long sin-gle-stranded non-coding RNA that is involved in a variety of physiological and pathological processes.Bronchial asthma is a heterogeneous disease,and airway inflammation is one of the important mecha-nisms of its pathogenesis.Asthma can be classified into different types based on the different immune mechanisms involved in its pathogenesis,and the mechanism of airway inflammation also varies be-tween different types of asthma.This article reviews the research progress of miRNA in asthma airway inflammation and endotype,and explores the pathogenesis and treatment prospects of miRNA in asthma airway inflammation and endotype.