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Basic science: Cardiovascular disease basic research
e0025 Aldehyde dehydrogenase-2 G1951A gene polymorphism and obstructive sleep apnoea syndrome in male drinkers
  1. Yang Jing1,
  2. Li Nanfang2,
  3. Zhou Ling3,
  4. Shao Liang4,
  5. Cao Nei2,
  6. Wang Yingchun3,
  7. Xiang Hong4
  1. 1Hypertension Unit of The People's Hospital of Xinjiang Uygur Autonomous Region, The Institute of Hypertension of Xinjiang, The Center of Hypertension of The People's Hospital of Xinjiang Uygur Autonomous Region
  2. 2Hypertension Unit of The People's Hospital of Xinjiang Uygur Autonomous Region
  3. 3The Institute of Hypertension of Xinjiang
  4. 4The Center of Hypertension of The People's Hospital of Xinjiang Uygur Autonomous Region
  1. Correspondence to Li Nanfang; lnanfang{at}yahoo.com.cn

Abstract

Introduction To study the relationship between aldehyde dehydrogenase-2 (ALDH2) G1951A gene polymorphism and Obstructive Sleep Apnoea Hypopnoea Syndrome (OSAHS) in male drinkers.

Methods 226 male drinkers were enrolled in this study with a standard polysomnography. ALDH2 genotypes were detected by PCR-restriction fragment length polymorphism (PCR-RFLP).

Results (1) We detected three kinds of genotypes and two kinds of allele of ALDH2 gene G1951A polymorphism. The frequency of ALDH2 genotype GG, GA, AA were 0.854, 0.137, 0.009 and allele G and A were 0.923, 0.077 respectively in 226 male drinkers.

The genotypic and allelic frequencies were in Hardy–Weinberg equilibrium (=0.3606, p=0.5482). (2) The frequency of ALDH2 genotype GG/(GA+AA) (0.855/0.145) and allele G/A (0.925/0.075) in OSAHS patients had no statistical differences comparing with the control group (p>0.05. Analysing the data stratified with BMI, there was also no significant differences of the frequency of ALDH2 genotype and allele between OSAHS group and the control group either in normoweight or overweight subjects (p>0.05). (3) There were no any differences in AHI, the lowest SaO2 and the longest apnoea duration between subjects with the two genotypes (GG and (GA+AA)) either in OSAHS patients or the control group.

Conclusion ALDH2 gene G1951A polymorphism was found in male drinkers, it had no any association with OSAHS.

  • Aldehyde dehydrogenase
  • gene
  • polymorphism
  • obstructive sleep apnoea
  • aldehyde

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