Increase in serum haptoglobin and apolipoprotein M in patients with obstructive sleep apnoea

Jinkwan Kim, Seunggwan Lee, Kwangho In, Jehyeong Kim, Sehwa You, Kyungho Kang, Jaejeong Sim, Sangyeub Lee, Daewui Yoon, Jungbok Lee, Chol Shin

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)


Obstructive sleep apnoea (OSA) is a common syndrome, which is associated with a number of medical problems that impact morbidity and mortality. Although the precise mechanisms that underlie these associations are not fully understood, previous studies have suggested that patients with OSA show elevations of several biomarkers that are associated with cardiovascular risk. This study was undertaken to identify serum proteins associated with OSA by using a proteomics technique and to examine changes in identified protein levels after continuous positive airway pressure treatment. The study participants consisted of 40 male patients (aged 40-49 years) with severe OSA and 34 male control subjects matched for age and body mass index. All subjects underwent polysomnography. Using a proteomics approach, we identified nine proteins that were differentially expressed in patients with severe OSA and controls. Three of these nine proteins, haptoglobin, paraoxonase-1 and apolipoprotein M, were quantified by using enzyme-linked immunosorbent assays, kinetic assays and by using Western blotting. Multiple regression analysis showed that haptoglobin and apolipoprotein M levels are independently related to apnoea-hypopnoea index (P < 0.01). A further study is required to determine the nature of associations between these identified proteins and OSA in a large population.

Original languageEnglish
Pages (from-to)313-320
Number of pages8
JournalJournal of Sleep Research
Issue number3
Publication statusPublished - 2009 Sept


  • Apolipoprotein M
  • Haptoglobin
  • Obstructive sleep apnoea
  • Paraoxonase-1
  • Proteomics
  • Serum

ASJC Scopus subject areas

  • Cognitive Neuroscience
  • Behavioral Neuroscience


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