Smoking Leads To DNA Mutations That Cause Cancer

Posted: Nov 5 2016, 6:39am CDT | by , in Latest Science News


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Smoking Leads to DNA Mutations That Cause Cancer
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  • Smoking leads to Mutations in the DNA of the Smokers

It has been found that smoking cigarettes leads to mutations in the DNA of the smokers.

Smoking has been found to have a deleterious effect on the DNA of smokers. The novel study showed how tobacco consumption had such a harmful impact on the human body.

For those folks who consume a pack of cigarettes each and every day, they are allowing for changes in their body which may do untold harm in the future. The study was published in the journal Science.

The cells in the human body which are exposed to the smoke are in particular vulnerable to extensive damage on a long term basis. Over 150 mutations occur among these cells.

97 of these are in the larynx and 39 are in the mouth. Smoking both harms the organs directly exposed to the smoke as well as those organs which are indirectly involved with the smoking.

Genetic changes and the chance occurrence of cancers is also increased by several percentage points. Although the evidence for this link between smoking and cancer was always there, now physical and visible proof of the changes in the human body due to smoking are available.

Smoking is connected with 17 types of cancer. It also kills 6 million people on an annual basis. Tobacco smoke contains 60 carcinogens. The genes are mutated thanks to these carcinogens and thus the likelihood of cancer is doubled and tripled in smokers.

Those who smoke a pack a day are liable to have 150 extra mutations in their lungs on an annual basis. Lung cancer is always a risk that hangs over the heads of heavy smokers like the proverbial Sword of Damocles. The likelihood of lung cancer among men who smoke is 23 times whereas in women it is 13 times.

The experts examined 5000 tumors and these came from 17 types of cancers. The one causal reason for all these various cancers was smoking. It all ultimately boiled down to changes in the DNA. Some of the effects are directly linked and others are indirectly linked. Even DNA methylation showed changes.

Every cancerous genome is a record of sorts which reveals what exactly occurred on a regular basis and caused the cancer to attack the body of the individual. Smoking has been identified as the biggest contributor to cancer risk among average populations on a worldwide level.

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<a href="/latest_stories/all/all/20" rel="author">Sumayah Aamir</a>
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