As it became known to scientists, lung cancer in smokers and nonsmokers proceeds differently. Tumors in people who have never smoked, have more genetic abnormalities.
According to statistics, the share of non-smokers have less than 10% of all cases, one of the most deadly types of cancer. Recent studies have shown that in their case, the disease is somewhat different from Lung Cancer smokers. The scientists compared the genetic characteristics of malignant tumors in 30 patients who had never smoked and 53 smokers with the experience.
In the first case, it has been found in tumors twice anomalies DNA compared to smokers. "This suggests that non-smokers with tumors there is something else - said study author Dr. Kelsey Tu of the Cancer Research Center of British Columbia in Vancouver. - If we are able to determine exactly what is the difference between lung cancer one group of patients and the other, it will give us the opportunity to develop specific targeted drugs that act on the genetic level. This will improve the prognosis of survival. "
IN THE U.S lung cancer is the leading cause of death among men and women in other types of tumors. Every year, it kills on 157 thousand men and women. In the case of non-smokers is the seventh fatality type of cancer. So, the widow of the famous Hollywood actor Christopher Reeve ("Superman"), Dana Reeve died at the age of 44 years Lung Cancer Although I had never smoked.
Often the cause of Lung Cancer nonsmokers is contact with a negative impact on light materials (for example, inhalation of asbestos or other harmful particles), passive smoking (inhaling smoke produced by family-smokers), or other factors that science can not yet explain.
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