Journal
CANCER MANAGEMENT AND RESEARCH
Volume 12, Issue -, Pages 4677-4684Publisher
DOVE MEDICAL PRESS LTD
DOI: 10.2147/CMAR.S244606
Keywords
healthy lifestyle score; retinoic acid receptor beta; mediation effect; population study
Categories
Funding
- National Natural Science Foundation of China [81172743]
Ask authors/readers for more resources
Purpose: Lifestyle factors and methylation in the retinoic acid receptor beta (RAR beta) gene are associated with breast cancer (BC). This study aims to examine the mediation effect of RAR beta methylation on the association between healthy lifestyle and BC in Chinese women. Patients and Methods: This case-control study consisted of 408 BC patients and 573 controls. A healthy lifestyle score (HLS) was constructed based on diet, alcohol use, physical activity, body mass index and smoking. The mediation effect of RAR beta methylation in peripheral blood leukocytes was assessed in a causal mediation model using R package Lavaan. Results: A higher HLS was significantly associated with lower risk of BC (P-value<0.001). In mediation analyses, the total effect of HLS on BC measured as a regression coefficient was significant (-0.237). The indirect effects of HLS on RAR beta methylation (-0.153) and RAR beta methylation on BC (0.220) were both significant. The significant mediation effect of RAR beta methylation on the HLS-BC association was estimated at 14.3%. Conclusion: The relationship between healthy lifestyle and BC is partly mediated by RAR beta methylation, suggesting that epigenetic modifications play a role in the underlying mechanisms in response to lifestyles and contribute to the development of BC.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available