BMAL1 Gene Polymorphism Linked to Sleep Quality in Chinese Youth

Strategic Insights -

Research conducted at Wannan Medical College has shed light on the relationship between brain and muscle Arnt-like protein-1 (BMAL1) gene polymorphism and sleep quality among Chinese youth. A study involving 2715 college students found no significant correlation between BMAL1 polymorphism and sleep quality, but quantitative trait analysis revealed higher sleep latency scores in certain genotype carriers. The research also highlighted significant associations between BMAL1 gene polymorphisms and sleep quality, with notable gender differences. The study's findings suggest that sleep quality is influenced by multiple interactions between genes and the environment.

Key Takeaways:

  • The study involved 2715 college students and employed a cross-sectional design to genotype four single-nucleotide polymorphisms (SNPs) in the BMAL1 gene.
  • Quantitative trait analysis showed higher sleep latency scores in rs9633835 AA and AG genotype carriers.
  • Gender stratification analysis linked rs7107287 to sleep quality, particularly in men (OR 0.747, 95% CI, 0.5740-0.973, P=0.030, dominant model).
  • Among men, rs7107287 AA mutant homozygous carriers had higher sleep efficiency and daytime dysfunction scores.
  • Among women, rs9633835 AG heterozygous carriers had higher sleep latency scores.
  • The study found significant interactions between BMAL1 gene polymorphisms and environmental factors, such as physical exercise in men and mental condition in women.
  • Sleep quality was significantly influenced by the multiplicative interaction between rs7107287 and physical exercise in men, and between rs7107287 and mental condition in women.
  • The study's findings suggest an association between BMAL1 gene polymorphisms and sleep quality in Chinese youth, with notable gender differences.

Statistics:

  • 2715 college students participating in the study.
  • 4 single-nucleotide polymorphisms (SNPs) in the BMAL1 gene genotyped.
  • 95% CI, 0.5740-0.973, P=0.030, for the association between rs7107287 and sleep quality in men.

Sources:

  • The Impact of Bmal1 Gene Polymorphism On Sleep Quality In Healthy Chinese Youth: a Gender-specific Analysis. Georgian Medical News, 2025:195-201.
  • NewsRx. Research Conducted at Wannan Medical College Has Provided New Information about Science (The Impact of Bmal1 Gene Polymorphism On Sleep Quality In Healthy Chinese Youth: a Gender-specific Analysis). China Weekly News. October 21, 2025; p 397.