‘Smoking can DNA harm to more than thirty years’
Smoking is potentially harmful to the DNA. After stopping smoking, the body repairs it over time, but according to a new study, this process can be at nineteen specific genes, however, until more than thirty years.
Following In the footsteps of a meta-analysis of sixteen existing studies, by a team of approximately 16,000 blood samples collected from smokers, ex-smokers and people who never in their lives had smoked.
According to the study, smoking affects more than 7,000 genes, approximately one-third of the total human genes. Of these are several genes linked to various heart disease and types of cancer.
The researchers say that most of the genes after five years to restore them to the same level as that of people who do not smoke.
But that is not the case for nineteen specific genes. “Our study has conclusively found evidence that smoking in the long-term consequences for our molecular mechanism, an impact that may take longer than thirty years,” says researcher Roby Joehanes.
The study wanted to researchers from the Us National Institute of Environmental Health Scienses (NIEHS) and Harvard Medical School has more insight into molecular mechanisms.
According to the researchers, the study is important because it shows to what extent smoking risks to health. “In addition, it is important that the research shows that even after stopping smoking the effects are still visible in the DNA,” explains Joehanes.
The results of the research are published in the American Heart Association journal Circualtion: Cardivascular Genetics.