The severity of the damage varies among popular flavours.
The flavours used in electronic cigarettes (e-cigarette), especially cinnamon and menthol, can increase the risk of cardiovascular diseases (CVD) when inhaled, says a study.
The research team investigated the effect of the e-liquids on endothelial cells that line the interior of blood vessels.
The study, published in the Journal of the American College of Cardiology, found that endothelial cells exposed to the e-liquids or to blood collected from e-cigarette users shortly after vaping, exhibit significantly increased levels of molecules implicated in DNA damage and cell death.
The severity of the damage, aspects of which occur even in the absence of nicotine, varies among popular flavours, said the researchers, adding that cinnamon and menthol were found to be particularly harmful.
"This study clearly shows that e-cigarettes are not a safe alternative to traditional cigarettes," said Joseph Wu, Professor at Stanford University.
For the study, the researchers investigated the effect of six different popular e-liquid flavours -- fruit, tobacco, sweet tobacco with caramel and vanilla, sweet butterscotch, cinnamon and menthol -- with varied nicotine levels on endothelial cells derived from human induced pluripotent stem cells or iPS cells.
"When we exposed the cells to six different flavours of e-liquid with varying levels of nicotine, we saw significant damage. The cells were less viable in culture, and they began to exhibit multiple symptoms of dysfunction," Wu said.
The researchers found that while several of the liquids were moderately toxic to the endothelial cells, the cinnamon- and menthol-flavoured e-liquids significantly decreased the viability of the cells in culture even in the absence of nicotine.
"It's important for e-cigarette users to realise that these chemicals are circulating within their bodies and affecting their vascular health," Wu said.
Indo-Asian News Service
In pursuit of the body beautiful, most muscle wannabes continue to abuse steroids despite knowing that they have serious, life-limiting and potentially lethal side effects, say researchers.
Heart patients who exercise regularly and have better fitness are likely to have less cognitive impairment, says a study. Fitter patients have better memory, it adds.
Stress levels and mental health problems are at an all time high as people struggle to accomplish goals and keep up with the demands of our fast-paced world. We need to be aware of this and do whatever we can to bring balance to our lives. This week we look at the best well-being trends of the year so far.
The United States is the only country in the developed world to see an increase in women dying as a result of childbirth. Nearly 1,000 women die each year of pregnancy-related complications — deaths that could likely have been prevented with timely and proper interventions. This issue is particularly troubling for minority women. For every 10 pregnancy-related deaths of white women, 30-40 African-American women will die from pregnancy-related causes. However, efforts are under way, with broad bipartisan support, to tackle these disparities.
There’s a reason most of us enjoy mint in our toothpaste and chewing gum. It cleans the palate in a way no other ingredient can.
Women who have diabetes are at greater risk of experiencing heart failure than men with the same condition, a new study has warned.
Having no natural access to sea does not stop Serbs from organising a regatta: thousands this weekend boarded a motley fleet of craft floating on river waters for the "Regatta on Drina".