Aerosol generated from vaping devices likely impairs blood vessels’ ability to function comparable to traditional cigarette smoke, according to preliminary research in rats presented at the American Heart Association’s Basic Cardiovascular Sciences Scientific Sessions 2021. The virtual meeting, Aug. 23-25, offers the latest research on basic and translational cardiovascular science.
Vaping, or the use of e-cigarettes, is often promoted as a less harmful alternative to smoking traditional cigarettes. E-cigarettes contain a cartridge with a liquid containing nicotine that generates an aerosol that is inhaled, like smoking a cigarette. Despite the popularity of these devices, knowledge is still limited about the impact of the aerosols from e-cigarettes, heated tobacco products and newer, coil-less, ultrasonic vaping devices on cardiovascular function.
“When you inhale a suspension of particles or a mist, whether it is from tobacco or marijuana, whether it’s smoke or aerosol, it all has the same effect,” said Matthew L. Springer, Ph.D., senior author of the study and a professor of medicine at the University of California, San Francisco School of Medicine. “Our research reinforces the previous findings that vaping is not without harm, and it underscores the importance of counseling patients about the risks of vaping because it does affect cardiovascular function.”
Misleading portrayals of the safety of tobacco use are widespread on YouTube, where the viewership of popular pro-tobacco videos has soared over the past half-dozen years, according to research by the Annenberg Public Policy Center (APPC) of the University of Pennsylvania.
Photo by Ike louie Natividad on Pexels.comIn an article published in the Harvard Kennedy School Misinformation Review, APPC researchers found that from 2013 to 2019, different kinds of popular tobacco-themed YouTube videos saw “dramatic increases in views per day, especially for tutorials about vaping products.”
The research follows up on a 2013 content analysis done by APPC which identified five major categories of pro-tobacco videos on YouTube. For example, among instructional or “how-to” videos, the highest-performing video in 2013 was on how to use a pipe, with just over 62,000 total views or 47 views per day. But in 2019, the most-viewed instructional video was on “the art of vape,” which had logged over 40 million total views or over 68,000 per day.
Another category is managing risk, in which videos claim that the risks of tobacco use can be managed by various fixes, without offering scientific evidence. In this category, the top-performing 2013 video concerned cigarette smoking, with 85,000 total views or 63 views per day. In 2019, the top-viewed video in this category was on vaping, which had over 3.5 million views or over 1,600 per day.
“The easy access of such material suggests that YouTube is a fertile environment for the promotion of tobacco products despite its banning of tobacco advertising,” the researchers said.
It seems that the major reason for many people who switch to e-cigarettes from tobacco, namely, less nicotine, may not in fact be true.
JUUL delivers substantially more nicotine to the blood per puff than cigarettes or previous-generation e-cigarettes (e-cigs) and impairs blood vessel function comparable to cigarette smoke, according to a new study by researchers at UC San Francisco.
The study, which appears online Jan. 4, 2020, in Tobacco Regulatory Science, found that nicotine concentrations were five to eight times higher in rodents that were exposed to JUUL versus other tobacco products. The work also supports an earlier finding by the same researchers of harm to blood vessels from brief exposures to both direct and secondhand smoke from cigarettes, little cigars and combustible marijuana, and to aerosol from IQOS “heat-not-burn” tobacco products.
JUUL and earlier generation e-cigs are promoted as being less hazardous than cigarettes. Since 2016, there has been a dramatic increase in youth e-cig use, with JUUL devices particularly effective at recruiting teenagers to begin nicotine usage. A recent study found 27.5 percent of high school students and 10.5 percent of eighth graders currently use e-cigs, with more than half of both groups using JUUL as their preferred choice.
I have written repeatedly about the dangers of smoking cigarettes. Now, it appears that what was once considered a ‘less unhealthy’ practice has some negative impacts on our lungs.
E-cigarette vapor may have similar effects to cigarette smoke on bacteria associated with smoking-related illness such as chronic obstructive pulmonary disease (COPD) and asthma, according to a study published in Respiratory Research.
Although e-cigarettes are perceived as a safer alternative to cigarettes, recent research has suggested that acute lung disease may be associated with the use of nicotine-containing e-cigarettes, as well as conventional cigarettes. A team of researchers at the School of Pharmacy, Queen’s University Belfast, UK compared the effects of cigarette smoke and e-cigarette vapor on bacteria known to be associated with smoking-related chronic lung disease. Continue reading →
I feel very strongly about the dangers of smoking and have written about them repeatedly. It seems that some folks have switched over to vaping as a less unhealthy alternative. The more we learn about it, the less that seems to be true. Don’t smoke. Here is my Page on smoking – How many ways does smoking harm you?
Science hasn’t yet caught up with electronic cigarettes, leaving health care providers and users with many unknowns. But a new review of the research so far finds growing evidence that vaping can harm the heart and blood vessels.
Federal and state public health agencies are urging people to avoid vaping after a rash of related respiratory illnesses have resulted in 18 deaths and 1,080 lung injury cases across the United States. There have been 25 reported cases in Connecticut and one person has died from a vaping-associated lung injury. Here’s what you need to know about vaping-associated lung injury (also called vaping-related lung injury) and what you should do if you or a loved one develops worrisome symptoms.
Vaping is the act of inhaling the vapor created by liquid-filled cartridges used in battery-powered smoking devices called electronic cigarettes (e-cigarettes). Vaping-associated lung injury is damage to the lungs related to use of these vaping products. Continue reading →