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Revealed a study That people who smoke "greedily" Throughout their lives they can still dramatically reduce the risk of disease Lung Cancer By quitting smoking.
Scientists claim that this latest discovery, made by them in a study by the Welkom Sanger Institute and University College London, provides hope for smokers in the long run.
The study found that, compared to current smokers, people who quit smoking had cells lung Genetically more intact, as new healthy and healthy cells grow, so that the lining of the airways is renewed.
Cells, in turn, become less likely to develop cancer in the future, according to a newspaper "The Independent" British.
The British newspaper quoted the chief researcher in the study and researcher at the Wellcome Sanger Institute, Peter Campbell, as saying "People who smoke heavy and heavy for 30, 40 years or more tell me that it is too late to quit smoking, and that the damage has already been done".
He added: "The interesting thing about our study is that it is not too late to quit smoking, as some of the people surveyed smoked more than 15,000 cans cigarettes Throughout their lives, but after a few years of Quit SmokingMany of the bronchial cells in the lungs have returned to their lining, and no evidence has been shown Tobacco damage".
It is worth noting that of the 47,000 cases of lung cancer that are reported in Britain every year, about 72 percent of them are believed to be caused by smoking, which constitutes 21 percent of all cancer deaths, according to the Cancer Research Center in Britain.
According to the study, whose results were published in the journal Nature, researchers analyzed biopsies of 16 lungs, a group that included smokers, former smokers, people who never smoked and children.
The results showed that 9 out of 10 pulmonary cells in current smokers contain up to 10,000 additional genetic mutation as a direct result of tobacco-related chemicals, compared to non-smokers.
Meanwhile, in the lungs of smokers, more than a quarter of these damaged cells had at least one mutation of cancer.
But for those who quit smoking, researchers have found a presence "Large group of cells" That line the airways that "She survived" From the genetic damage caused by cigarettes in the past, those cells, which are not affected, were also found in those who had never smoked.
The study showed that the rate of the presence of such cells in former smokers is 4 times more than their current counterparts.
Despite these results, the researchers warned of the danger of permanent deeper damage to the lung as a result of continued smoking, and that the damage that could lead to illness from lung diseases Chronic remains.
The author of the study from the University of California, Los Angeles, Professor Kate Gowers, commented on the results, saying that even healthy lung cells that contain thousands of genetic mutations can be "Small time bombs await the next blow that causes them to develop into cancer".
She noted that despite these positive results, more research is needed with larger numbers of people to understand how it has evolved cancer Of these damaged lung cells.
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A study revealed that people who smoke “greedily” throughout their lives can still significantly reduce the risk of lung cancer by quitting smoking.
Scientists claim that this latest discovery, made by them in a study by the Welkom Sanger Institute and University College London, provides hope for smokers in the long run.
And the study found that, compared to current smokers, people who quit smoking had genetically healthy lung cells, with new healthy and healthy cells growing, so that the lining of the bronchi was renewed.
Cells, in turn, become less likely to develop cancer in the future, according to the British newspaper “The Independent”.
“People who smoke heavy and heavy for 30 or 40 years or more tell me it is too late to quit smoking, and that the damage has already been done,” Peter The Campbell, Peter Campbell, chief researcher and researcher at the Wellcome Sanger Institute, was quoted as saying by the British newspaper.
He added: “The exciting thing in our study is that it is not too late to quit smoking. Some of the people included in the study smoked more than 15,000 packs of cigarettes throughout their lives, but after a few years of quitting smoking, many of the airway cells in the lungs recovered Lining, and there was no evidence of tobacco damage. “
It is worth noting that of the 47,000 cases of lung cancer that are reported in Britain every year, about 72 percent of them are believed to be caused by smoking, which constitutes 21 percent of all cancer deaths, according to the Cancer Research Center in Britain.
According to the study, whose results were published in the journal Nature, researchers analyzed biopsies of 16 lungs, a group that included smokers, former smokers, people who never smoked and children.
The results showed that 9 out of 10 pulmonary cells in current smokers contain up to 10,000 additional genetic mutation as a direct result of tobacco-related chemicals, compared to non-smokers.
Meanwhile, in the lungs of smokers, more than a quarter of these damaged cells had at least one mutation of cancer.
But for those who quit smoking, the researchers discovered a “large group of cells” that line the bronchial tubes that “survived” the genetic damage caused by cigarettes in the past, and those cells, unaffected, were also found in those who had never smoked.
The study showed that the rate of the presence of such cells in former smokers is 4 times more than their current counterparts.
Despite these results, the researchers warned that the risk of permanent deeper lung damage due to continued smoking, and that the damage that could lead to a chronic lung disease remains.
The author of the study from the University of California at Los Angeles, Professor Kate Gowers, commented on the results, saying that even healthy lung cells that contain thousands of genetic mutations can be “small time bombs awaiting the next blow that makes them develop into cancer.”
She noted that despite these positive results, more research is needed with more people to understand how cancer develops from these damaged lung cells.
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