Electronic cigarettes may adversely affect blood vessels even if they do not contain nicotine
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Conventional cigarettes that smoke and smoke dried tobacco leaves contain toxic nicotine and tar, which are carcinogenic. In recent years, as a substitute for cigarettes, electronic cigarettes (Vaping) that heat a liquid called liquid and suck its vapor are attracting attention, and there are many liquids that do not contain nicotine. However, research results have been published showing that such electronic cigarettes may be harmful to the body even if they do not contain nicotine.
Acute Effects of Electronic Cigarette Aerosol Inhalation on Vascular Function Detected at Quantitative MRI | Radiology
https://pubs.rsna.org/doi/10.1148/radiol.2019190562
Vaping May Harm Your Blood Flow—Even Without Nicotine | WIRED
https://www.wired.com/story/vaping-may-harm-your-blood-flow-even-without-nicotine/
Vaping Just Once Could Immediately Change Your Blood Vessels, Even Without Nicotine
https://www.sciencealert.com/a-single-vape-could-mess-with-your-blood-vessels-even-without-any-nicotine
Electronic cigarettes are different from cigarettes, and they heat and suck the liquid mixture. If nicotine is not added, health risks are lower than conventional cigarettes, and various scents such as mint, cola, and energy drinks can be formulated.
However, the number of young people complaining of sudden lung disease in the United States in 2019 has increased rapidly. Because patients had a common history of inhaling electronic cigarettes, there is a debate about whether there is a health risk in electronic cigarettes. In addition, some liquids contain illegal drugs, and it is pointed out that many of the rapidly increasing lung diseases may be caused by these illegal drugs.
Lung diseases that are suspected of being related to electronic cigarettes are rapidly increasing, due to products containing illegal components-GIGAZINE
Liquids used in commercial electronic cigarettes contain propylene glycol and glycerin in addition to water and fragrance. These two are acceptable for food and pharmaceuticals because they are edible. However, Alexandra Capolare, a radiologist at the University of Pennsylvania, says, 'Even if propylene glycol or glycerin is approved for food use, I don't know if it is safe to inhale.'
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Capolare and his team conducted an experiment with 31 subjects aged 19 to 33 who had no problems with blood vessels, respiratory organs and nerves and had no smoking experience. In addition, researchers have prepared an electronic cigarette with a cartridge containing water and propylene glycol or glycerin. None of the cartridges contained nicotine, allowing the subject to perform 16 sets of `` sucking electronic cigarettes over 3 seconds and exhaling aerosols '', and using nucleomagnetic resonance imaging (MRI) to change blood vessels Observed
When focusing on the three arteries of the foot, heart, and brain, the researchers found that each artery had a 30% or more lack of contraction force, and the subject's blood vessels on average compared to before electronic cigarette inhalation It was said that it did not expand 34%.
Furthermore, when the blood flow was measured after the foot was fixed and released, the research team also noticed that blood acceleration after aspiration of electronic cigarettes decreased by 25% and peak blood flow decreased by 17.5%. It was. The oxygen level in the blood was also reduced by 20%.
“We thought we had the effect of e-cigarettes, but we did n’t think there was a big change so far. This was because we detected a small change. No, a big impact has appeared. '
by Vaping360
Science Media Science Alert predicts that the suction of electronic cigarettes may damage the inner lining of blood vessels, keeping in mind the small sample size of the experiment. In addition, in a study conducted in 2017, we introduced that the result of the injuries of blood vessels and vascular sclerosis and stenosis caused by inhaling steam for only 5 minutes was obtained. This suggests that the function of endothelial cells in blood vessels may be lost by aspiration of electronic cigarettes.
However, Professor Michael Siegel of the Boston University School of Public Health admits that electronic cigarettes can cause vascular dysfunction without nicotine. It should not be assumed that this is the cause of the damage, because the negative effects confirmed in this experiment are only temporary and reversible, so check whether electronic cigarettes pose a risk of irreversible vascular damage Needs further research. '
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