A Bridge From the Gut: Azithromycin Links to AMPK/SIRT1 Activation, Rectifies Th17/Treg Balance and Alleviates COPD Associated With Gut Microbiota-TMAO Modulation - Changqing Xu; Guoping Jiang; Guohu Zhang; Jiang Wu; Weiguo Rao; Songtao Jiang; Lanjuan Zhang; Lu Zhang; Yuezhong Shen; Liquan Hong (Discovery Medicine, 2026)