Non-smokers still have lung cancer

On March 22, British magazine The Lancet published a study by Mayo Medical University scientists in the United States, explaining why people who never smoked still had lung cancer.

By examining the genes of 754 people who have never smoked, but have or have not had lung cancer, the researchers discovered two gene variants in the chromosome pair 13.

In those with these two gene variants, the risk of developing lung cancer increased by 60%. The reason is that gene variants destroy the GPC5 protein, which plays a role in the formation of cell division.

According to scientists, some people with these genetic changes may develop lung cancer after a normal effect, but are not yet well-defined, possibly from second-hand smoke, contaminants. environment, arsenic or virus causing human papilloma.

The cause of lung cancer is mainly caused by smokers. However, up to 10% of people with this deadly disease in the world have never or rarely smoked, this rate in Asia is up to 30 to 40%.

Almost two-thirds of all smokers with lung cancer are women.