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A new study shows that e-cigarettes are not as innocent as their fragrant vapors seem to be. Conducted by researchers from the University of Tasmania and the University of Sydney, Australia, as well as from the National Institute of Pharmaceutical Education and Research in India, this new study has examined the effects of nicotine sources on two types of cells extracted from the lungs. epithelial cells and smooth muscle cells.
Epithelial cells are the first line of defense against foreign particles entering the airways, while smooth muscle cells preserve the structure of the airways.
Since smoking can impair the normal functioning of cells, which can lead to breathing problems, the researchers exposed the cells to different concentrations of traditional tobacco smoke, electronic cigarette vapors and vapors from one person. Tobacco-based device not burning, mark like IQOS. Unlike the electronic cigarette, which heats a solution called e-liquid and creates a vapor, this new device heats solid tobacco.
The results, published in the ERJ Open Research, showed that cigarette smoke and heated tobacco vapors were highly toxic to lung cells at lower and higher concentrations, as vapors of electronic cigarettes proved to be toxic at higher concentrations.
The researchers say these concentrations represent the levels of nicotine found in chronic smokers. "We have observed different levels of cellular toxicity with all forms of exposure in human lung cells. It was clear that the new products were by no means less toxic to the cells than conventional cigarettes or e-cigarettes, "commented Dr. Sukhwinder Sohal, one of the leading authors of the e-cigarettes. # 39; study.
"Our results suggest that all three are toxic to the cells in our lungs and that these new heated tobacco devices are as harmful as smoking traditional cigarettes."
In recent years, many smokers have switched from traditional tobacco to new devices, believing that they were less dangerous than cigarettes or that they would help them quit smoking altogether. The researchers say, however, that current findings build on existing data suggesting that new nicotine delivery devices may not be a safer substitute for smoking.
"Smoking is the leading cause of preventable death, and with the introduction of the electronic cigarette over the past decade, the trend of nicotine absorption is not going to slow down in the near future. If the current trend continues, smoking will cause more than eight million deaths annually by 2030 worldwide, "said Dr. Pawan Sharma, lead author.
"It took us almost five decades to understand the harmful effects of cigarette smoke and we do not yet know the long-term impact of e-cigarette use. These devices that heat solid tobacco are relatively new and it will take decades before we fully understand the effects on human health, "said Dr. Sohal.
"What we do know is that damage to these two types of lung cells can destroy lung tissue, leading to life-threatening diseases such as chronic obstructive pulmonary disease, lung cancer and pneumonia, and can increase the risk of death. risk of developing asthma. these devices are a safer option. "
Source: AFP Relax News
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