Jim Byard's Health Beat
Gene Doubles Lung Cancer RIsk


One in four smokers who carry a gene mutation found in 2% of the population will develop lung cancer, shown by a large-scale study conducted by the Institute of Cancer Research in London. The defective gene, known as BRCA2, has long been linked to breast and ovarian cancer. Scientist found that a specific flaw in the gene almost doubles the overall risk of lung cancer. A quarter of smokers, who generally have a 13% life-time risk of lung cancer, were predicted to develop the disease if they had the mutation.

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