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Home » General » E-cigarettes are NOT a safe alternative to smoking Toxic chemicals harm the lungs and weaken the immune system study claims
E-cigarettes are NOT a safe alternative to smoking Toxic chemicals harm the lungs and weaken the immune system study claims

E-cigarettes are NOT a safe alternative to smoking Toxic chemicals harm the lungs and weaken the immune system study claims

  • New study at Johns Hopkins University found ‘vaping’ is not a safe alternative to smoking tobacco
  • In experiments, mice exposed to fumes suffered mild damage to lungs
  • They also became more susceptible to respiratory infections
  • Scientists found their immune responses to bacterial and viral infections were weakened to such an extent that some mice died
  • Study thought to be the first to examine an animal’s response to ‘vaping’
  • Devices generated just 1% of the free radicals found in cigarettes but still posed a potential health risk, scientists warned

E-cigarettes generate toxic chemicals similar to those found in tobacco and may harm the lungs and immune system, scientists claimed today. A new study, thought to be the

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first where animals were exposed to ‘vaping’, found it is far from being a safe alternative to smoking tobacco.   In the experiments, mice exposed to e-cigarette fumes suffered mild damage to their lungs and became far more susceptible to respiratory infections. Their immune responses to both viruses and bacteria were weakened by such an extent that some animals died. Scientists also found that e-cigarette vapour contained ‘free radical’ toxins similar to those found in cigarette smoke and air pollution. Free radicals are highly reactive molecules that can damage DNA and cell membranes. Professor Shyam Biswai, from Johns Hopkins University in the US, who led the research published in the online journal Public Library of Science ONE, said: ‘Our findings suggest that e-cigarettes are not neutral in terms of the effects on the lungs. ‘We have observed that they increase the susceptibility to respiratory infections in the mouse models. ‘This warrants further study in susceptible individuals, such as COPD (chronic obstructive pulmonary disorder) patients who have switched from cigarettes to e-cigarettes, or to new users of e-cigarettes who may have never used cigarettes.’

For two weeks, mice were exposed to e-cigarette vapour in amounts equivalent to the doses inhaled by humans.

Source: Daily Mail

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