Interestingly, nonobese OSA group showed significantly higher serum d-LA than did nonobese non-OSA group [1374.35 (816–1735) vs 1166.43 (730–1815) μg/L, P = .018], than did obese non-OSA group [1374.35 (816–1735) vs 1188.75 (736–1557) μg/L, P = .045], and than did obese OSA group [1374.35 (816–1735) vs 1132.09 (680–1813) μg/L, P = .028], whereas serum LBP levels showed no differences within groups. The gene discussed is LBP; the disease is obstructive sleep apnea syndrome.