Journal of Capital Medical University ›› 2013, Vol. 34 ›› Issue (4): 609-614.doi: 10.3969/j.issn.1006-7795.2013.04.026

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Lectin-like oxidized low-density lipoprotein receptor-1 and the influence from oxidative stress

LI Yan, NIE Xiuhong, ZHANG Wei, FAN Xiaojun, REN Kui, GAO Shang   

  1. Department of Respiratory Disease, Xuanwu Hospital, Capital Medical Universtiy, Beijing 100053, China
  • Received:2013-05-08 Online:2013-08-21 Published:2013-07-20

Abstract:

Objective To investigate the changes of serum lectin-like oxidized low-density lipoprotein receptor-1(LOX-1) and the influence from oxidative stress in patients with obstructive sleep apnea hypopnea syndrome(OSAHS). Methods Totally 94 candidates were divided into three groups according to the apnea-hypopnea index(AHI), including normal control group(n=30), mild to moderate group(n=29), severe group(n=35). After the monitoring by polysomnography(PSG), the blood samples were obtained to measure the levels of serum LOX-1, oxidized low-density lipoprotein(ox-LDL) and malondialdehyde(MDA). Results The levels of serum LOX-1, ox-LDL, MDA in severe OSAHS group were significantly higher than that in the mild to moderate group and control group(P<0.01). The level of serum LOX-1 in OSAHS patients was positively correlated with serum ox-LDL and MDA(r=0.693, 0.460, respectively, all P<0.01). The level of ox-LDL and SaO2min were the high risk factors to influence the level of serum LOX-1 in patients with OSAHS(r=0.705, 0.734, respectively, all P<0.01). Conclusion The intermittent hypoxia caused by OSAHS can regulate the levels of LOX-1 through oxidative stress, and can further promote the formation and development of atherosclerotic in patients with OSAHS.

Key words: obstructive sleep apnea-hypopnea syndrome, lectin-like oxidized low-density lipoprotein receptor-1, oxidized low-density lipoprotein, malondialdehyde, oxidative stress

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