The vaping increase the risk of cancer and heart disease

AFP

Monday, 29 January, 2018 19:26

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Monday, 29 January, 2018 19:26

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Smoking electronic cigarettes could increase the risk of certain cancers and heart disease, according to the preliminary results of a study conducted on mice and human cells in the laboratory.

This work suggests that the vapor of nicotine might be more harmful than we thought, have been carried out by researchers of the faculty of medicine of the university of New York published Monday in the proceedings of the american Academy of sciences (PNAS).

Rodents, exposed to vaping for twelve weeks, have sucked up from the steam of nicotine which is equivalent in dose and duration to ten years of vaping to humans.

At the end of this experience, scientists have found damage in the DNA of the cells of the lungs, bladder and heart of these animals, as well as a reduction in the protein level of reparation of the cells in these organs compared to mice who breathed filtered air during the same period.

Adverse effects similar have been observed in cells of human lung and urinary bladder exposed in the laboratory to nicotine and a derivative carcinogenicity of this substance (nitrosamine). These cells have undergone particularly high rates of mutations in tumor.

“Although e-cigarettes contain less carcinogens than cigarettes conventional the vaping may pose a greater risk of developing cancer of the lung or bladder, as well as develop heart disease,” write the researchers, including professor Moon-Shong Tang, professor of environmental medicine and of pathology in the faculty of medicine of the university of New York, the lead author.

The manufacturers of electronic cigarettes argue that they are a safer alternative than traditional products tobacco.

Research to examine the long-term effects on the health of the vaping have been conducted but the findings are mixed.

In 2016, the Physician-general of the United States (US Surgeon General, Vivek Murthy has estimated that “the magnitude of the vaping among young Americans was a major concern of public health”, citing a 900% increase in the rate of use of e-cigarettes among high school students.

A report of the u.s. Academies of sciences and medicine published on January 23, concluded that the nicotine in electronic cigarettes could cause addiction in the young, which may predispose them to smoking tobacco.

The authors who have analyzed 800 scientific studies, have also found that the vaping would be less harmful than smoking cigarettes conventional, and may help smokers to quit.

Therefore, “at this stage, it is unclear if the electronic cigarette has a positive or negative impact on public health”, concluded.

Currently, 18 million Americans vapotent of which 60% are high school students, according to federal estimates.