No Gene-Environment Interactions Found in Million Women Study of Breast Cancer 2010 - CA: A Cancer Journal for Clinicians - Wiley Online Library

".....Regarding the question of gene-environment interactions, lead author Ruth Travis, MD, PhD, adds that “Results from this study suggest that common genetic and environmental factors (reproductive and lifestyle factors) act independently on breast cancer risk, so regardless of common inherited genetic variation, a woman can still reduce her risk by modifying her lifestyle, for example by maintaining a healthy body weight and limiting alcohol intake.”

The absence of interactions means that priorities for risk-reducing strategies are similar for most women (for example, being based on known risks associated with lifestyle and reproductive factors) regardless of the common genetic risk factors for the disease, she says. Dr. Travis is an epidemiologist, research fellow, and senior scientist in the cancer epidemiology unit at Oxford University....."