Tuesday January 21, 2020

New Device Equally Harmful as E-cigarettes

"If the current trend continues, tobacco use will cause more than eight million deaths annually by 2030 around the world," noted Sharma

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E-cigarettes, Smokers
Talia Eisenberg, co-founder of the Henley Vaporium, uses her vaping device in New York, Feb. 20, 2014. VOA

While we know about the harmful effects of traditional cigarettes and vaping, new heated tobacco devices are no less toxic to the human lung cells than ordinary cigarette smoke, said researchers, including one of Indian-origin.

The study has compared new heated tobacco devices, which heat solid tobacco instead of an e-liquid, with vaping and traditional cigarettes showing that all the three are toxic to the cells.

In addition, these newer electronic nicotine delivery devices can destroy lung tissue leading to fatal diseases such as chronic obstructive pulmonary disease, lung cancer and pneumonia, and can increase the risk of developing asthma.

“Smoking is the leading cause of preventable death, and with the introduction of e-cigarettes in the last decade, the trend of nicotine uptake is not going to slow down in the near future,” said Pawan Sharma, a researcher at the University of Technology Sydney.

“The latest addition in this emerging trend is the planned and vigorous introduction of heated tobacco devices. They are commonly called next generation or heat-not-burn products. We know very little about the health effects of these new devices, so we designed this research to compare them with cigarette smoking and vaping,” added Sharma.

For the study, researchers tested the effects of all three nicotine sources on two types of cells taken from the human airways: epithelial cells and smooth muscle cells.

E-cigarettes, Smokers
A woman smokes an electronic cigarette in London, Aug. 19, 2015. VOA

In healthy lungs, epithelial cells act as the first line of defence to any foreign particles entering the airway while smooth muscle cells maintain the structure of the airway. However, smoking can lead to difficulty in breathing primarily by hampering the normal functions of these cells.

The team exposed the cells to different concentrations of cigarette smoke, e-cigarette vapour and vapour from a heated tobacco device, and measured whether this was damaging to cells and whether it affected the cells’ normal functions.

The findings, published in ERJ Open Research, showed that cigarette smoke and heated tobacco vapour were highly toxic to the cells both at lower and higher concentrations while e-cigarette vapour demonstrated toxicity mainly at higher concentrations.

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Importantly, the review of the European Respiratory Society’s Tobacco Control Committee’s own data on these devices has shown that, in rats, there is evidence of lung inflammation, and there is no evidence of improvement in lung inflammation and function in smokers who switch to heated tobacco, said Professor Charlotta Pisinger from the varsity.

“If the current trend continues, tobacco use will cause more than eight million deaths annually by 2030 around the world,” noted Sharma. (IANS)

Next Story

Know About the Adverse Health Effects of Smoking Hookah

Smoking hookah may increase heart attack, stroke risk

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Hookah
Tobacco smoke from hookah can increase the risk of heart attack or stroke. Pixabay

Researchers have found that tobacco smoke from a hookah caused blood to function abnormally and be more likely to clot and quickly form blood clots, which can increase the risk of heart attack or stroke.

The study, published in the journal Arteriosclerosis, Thrombosis and Vascular Biology, found that tobacco smoke caused blood clots to form within an average of about 11 seconds, compared to an average of five minutes for clotting without exposure to hookah smoke.

Exposure to the hookah smoke also caused other abnormalities related to the way the blood flows, the research added. Some studies have found that the smoke emitted from one hookah tobacco smoking episode contains significantly more harmful chemicals compared to a single cigarette.

Hookah
Hookah smoking, which is becoming more popular in Western countries, is perceived as less harmful than cigarettes. Pixabay

“Our findings provide new evidence that hookah smoking is as unhealthy – if not more so – than traditional cigarettes. “Smoking a hookah, cigarettes, e-cigarettes or other forms of tobacco all increase your risk for heart disease and stroke,” said study researcher Fadi Khasawneh from University of Texas in the US.

In this study, researchers exposed mice to smoke from a smoking hookah’s machine that mimicked real-life smoking habits.

The smoking machine used 12 grams of commercially available, flavoured tobacco that included tobacco, glycerin, molasses and natural flavour with nicotine and tar. Researchers then compared platelet activity among the exposed versus the unexposed mice.

The study simulated the type of nicotine exposure that occurs with smoking a hookah, which the researchers verified by measuring the levels of cotinine, the nicotine metabolite.

In May 2019, the American Heart Association published a Scientific Statement, “Water Pipe Smoking and Cardiovascular Disease Risk,” to analyse available research on the health effects.

The statement noted that tobacco smoking results in inhaling significant levels of toxic chemicals such as carbon monoxide and particulates from tobacco that can harm blood vessels, the heart and lungs, as well as creating a dependence on nicotine.

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This study provides additional evidence that, contrary to popular belief, smoking hookahs adversely affects cardiovascular health.

“Water pipe smoking, which is becoming more popular in Western countries, is perceived as less harmful than cigarettes, yet hookahs carry a toxic profile that is thought to be comparable or to even exceed that of traditional cigarettes,” Khasawneh added. (IANS)