期刊
PROGRESS IN NEURO-PSYCHOPHARMACOLOGY & BIOLOGICAL PSYCHIATRY
卷 34, 期 7, 页码 1196-1201出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.pnpbp.2010.06.010
关键词
Age at onset; Bipolar disorder; CLOCK; Korean; Morningness/eveningness
资金
- Ministry for Health, Welfare and Family Affairs, Republic of Korea [A080534]
Genes associated with circadian rhythms have been suggested to play an important role in the pathophysiology of bipolar disorder A single nucleotide polymorphism (SNP) in the 3'-flanking region of CLOCK (3111T/C, rs1801260) has been reported to be associated with sleep disturbances and an increased recurrence rate in patients with bipolar disorder. We examined the association of CLOCK 3111T/C with bipolar disorder in 260 patients and 350 controls in a Korean population CLOCK 3111T/C showed significant allelic and genotypic associations with bipolar disorder (P=0.012, P=0 033, respectively) Morningness/eveningness (M/E) was evaluated using the Composite Scale of Morningness (CSM) in 108 patients with bipolar disorder In the subgroup analysis of the highest and lowest 25th percentile of M/E scores, significantly more C allele carriers were found among extreme evening types than among extreme morning types (P= 0.041) After correcting for age. C allele carriers had lower M/E scores than those carrying the T/T genotype, but the association was not statistically significant We also analyzed the association between age at onset (AAO) and CLOCK 3111T/C in the bipolar disorder group, and no association was found Despite the relatively small sample sizes, these results support a possible role of the CLOCK 3111T/C SNP in bipolar disorder. Further studies with larger samples and more polymorphisms are necessary (C) 2010 Elsevier Inc All rights reserved
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