Association between the -1438G/A and T102C polymorphisms of 5-HT2A receptor gene and obstructive sleep apnea: a meta-analysis.
The serotonin 2A (5-HT2A) receptor has been implicated in obstructive sleep apnea (OSA). Single nucleotide polymorphisms (SNPs) in the 5-HT2A gene have been found in OSA, the most common being -1438G/A and T102C; however, studies of the association between 5-HT2A SNPs and OSA risk have reported inconsistent findings. A meta-analysis was performed to quantitatively review the association between -1438G/A and T102C SNPs and OSA. Five studies, including 791 subjects for -1438G/A genotype and 1,068 subjects for T102C genotype, were selected. Pooled data analysis of the -1438G/A genotype indicated a significantly increased OSA risk was associated with two variant genotypes (AA vs. AG+GG: OR 3.023, 95 % CI 2.169-4.213, P = 0.506 for heterogeneity; A allele carriers vs. GG: OR 1.938, 95 % CI 0.879-4.274, P = 0.012 for heterogeneity). Stratification analysis by gender supported the association in males, but not females. For the T102C genotype, no significantly increased OSA risk was associated with the two variant genotypes (CC vs. CT+TT: OR 1.065, 95 % CI 0.787-1.442, P = 0.361 for heterogeneity; C allele carriers vs. TT: OR 0.979, 95 % CI 0.737-1.3, P = 0.9 for heterogeneity).In conclusions, meta-analysis indicated that the -1438G/A, and not T102C, polymorphism of 5-HT2A is a positive risk factor of OSA, especially in males.
Department of Respiratory Medicine, Jiangsu Province Geriatric Hospital, Jiangsu Province Geriatric Institute, 30 Luojia Road, Nanjing, 210024, China.
Ying
Y
Wu
Hong-Bing
HB
Liu
Ming
M
Ding
Jian-Nan
JN
Liu
Xuan-Feng
XF
Zhu
Jian-Hua
JH
Gu
Gan
G
Lu
D000483:Alleles; D019943:Amino Acid Substitution; D016022:Case-Control Studies; D003062:Codon; D005260:Female; D056726:Genetic Association Studies; D005838:Genotype; D006801:Humans; D008297:Male; D016017:Odds Ratio; D020641:Polymorphism, Single Nucleotide; D017594:Publication Bias; D044402:Receptor, Serotonin, 5-HT2A / Q000235:genetics*; D012306:Risk; D020181:Sleep Apnea, Obstructive / Q000235:genetics*
D003062:Codon; D044402:Receptor, Serotonin, 5-HT2A