Articles tagged with Smoke
A laboratory study reveals that e-cigarette vapour has no effect on wound healing, whereas cigarette smoke completely prevents it at concentrations over 20%. The test used the scratch test to compare the effects of smoke extract and vapour extract from two commercial e-cigarettes.
A UM chemist will lead a three-year research project studying the chemical composition and evolution of western wildfire smoke. The study aims to improve understanding of the impact of VOCs on air quality, climate, and human health.
A new tobacco hybrid device, iFuse, produces a vapour with similar toxicant profile to e-cigarette Vype ePen, but with enhanced flavour. The vapour's toxicity levels are significantly lower than those in cigarette smoke.
Researchers found that brown carbon released into the air from wildfires is more likely to travel to the upper levels of the atmosphere, where it can cool or warm the air. Brown carbon appears more likely than black carbon to have a greater impact on climate due to its altitude.
A University of Pittsburgh analysis found that young adults who have a positive attitude towards hookah smoking are more likely to take their first puff. The study suggests that prevention efforts should focus on countering the image of hookah smoking as a fun social activity rather than emphasizing health risks.
Researchers found that Amish women exposed to secondhand smoke had a greater risk for cardiovascular disease, while men exposed to secondhand smoke tended to have a higher body mass index (BMI). The study, conducted in a Pennsylvania Amish community, used a novel method to track exposure and avoided recall bias. Small amounts of second...
A large study of over 39,000 participants found that social smokers face the same high blood pressure and cholesterol risks as everyday smokers. The researchers advise clinicians to ask about social smoking in different ways to identify and help these individuals quit.
A team of researchers led by Colorado State University is conducting a comprehensive study to better understand how wildfire smoke changes chemically with time, affecting air quality across the US. The study aims to improve predictions of air quality and weather patterns.
Research by British American Tobacco found that e-cigarette vapour has a limited effect on gene expression in human lung cells compared to cigarette smoke. The study exposed MucilAir 3D models to equivalent or higher doses of nicotine and measured the genes affected, revealing significant differences in response.
A recent study by UCSF found that young adults experience greater pleasure from smoking cigarettes while under the influence of alcohol compared to marijuana. The study, which used self-reported data from 500 participants aged 18-25, suggests that co-use of cigarettes and alcohol may be more pleasurable than co-use with marijuana.
In Kansas, controlled burns by farmers to manage land produce smoke with various chemicals and particles, posing an issue for air quality. Air quality alerts are in place due to the drift of smoke from burning grass.
A study by Cincinnati Children's Hospital Medical Center and San Diego State University found that children carry high levels of nicotine on their hands even when no one is actively smoking around them. This exposure is associated with various health problems, including respiratory issues and asthma attacks.
The prevalence of daily smoking declined globally between 1990 and 2015, but the number of daily smokers continues to rise year-over-year. Robust tobacco control programs have led to progress in reducing smoking rates, but more efforts are needed to prevent new smokers and encourage quitters.
A new study measures potentially damaging free radicals in cigarette smoke for the first time, finding variations in their levels across different cigarettes. The researchers' standardized protocol could help assess people's exposure to free radicals and inform potential health risks.
Researchers developed a standardized protocol for measuring gas-phase and particulate-phase free radicals in cigarette smoke. The study found that levels of these radicals varied widely across cigarette types, with highly ventilated cigarettes producing lower levels.
A new study published in Nicotine & Tobacco Research reveals that comprehensive smoking bans significantly decrease overall secondhand smoke exposure across all settings. Exposure to secondhand smoke was found to drop from 72% in 2006 to 45% in 2011, even outside workplaces and hospitality areas covered by the legislation.
Research published in BMJ Open found that brainy teens are less likely to smoke, but more likely to drink alcohol and use cannabis. The study tracked the substance use of over 6,000 English teenagers from age 11 to 19, revealing persistent patterns into adulthood.
A new University of Michigan study found that high school seniors who vape are more than four times more likely to smoke a cigarette in the following year. Vaping changes teens' perceptions of the risks of smoking, making them less likely to view smoking as harmful.
A recent study has found that e-cigarette users have significantly lower levels of toxic chemicals and carcinogens in their body compared to smokers. The study also suggests that quitting smoking altogether is the best way to minimize exposure to toxins, rather than using e-cigarettes alongside traditional cigarettes.
Researchers compared the effects of direct exposure to cigarette smoke or e-cigarette vapor on reconstituted lung tissue, finding changes in gene expression levels and increased inflammation. The study utilized a 3D airway culture system and next-generation sequencing technologies to evaluate the biological effects.
A study led by Berkeley Lab researchers found that newborn mice exposed to thirdhand smoke weighed less and had altered blood cell counts, which persisted even after exposure ended. The findings suggest that the lingering residue of tobacco smoke could be harmful to human health, particularly for babies and toddlers.
A study led by Drexel University found that Philadelphia's smoke-free policy reduced nicotine levels in the air by nearly half, benefiting all residents including children and chronically ill individuals. The policy change has significant implications for public housing communities where secondhand smoke exposure is a major concern.
The James Bond series has conspicuously absent smoking-related imagery in only one film since its debut in 1962, according to a recent analysis published in Tobacco Control. Despite Bond himself no longer smoking, he is still exposed to second-hand smoke through his sexual partners and other characters.
A new study found that viewing vape pen use increases the urge to smoke in young adults, similar to watching someone smoke a cigarette. The study's results suggest that vape pens can be a potent trigger for smoking, despite their design differences from traditional cigarettes.
A new study from the University of Georgia's Terry College of Business found that top NBA players can create positive spillover effects on their teammates' productivity. Research suggests that employees with high spillover values can make a significant impact on team success and should be compensated accordingly.
Exposure to second-hand tobacco smoke even before conception appears to impair fetal brain development throughout pregnancy, damaging regions involved in learning and memory. The impact was most severe with exposures occurring in late gestation, but adverse effects also occurred when mothers were exposed prior to conception.
Smokers with serious mental illnesses like schizophrenia and bipolar disorder are motivated to quit, yet many don't receive treatment or counseling. Researchers found that only 13% of patients who wanted medication to aid quitting received it.
Research suggests e-cigarette use does not make smoking more appealing to non-smokers, but rather discourages tobacco consumption.
E-cigarette vapour exposure has been shown to be genotoxic and cytotoxic in human lung cells at high doses. In contrast, Vype e-cigarette vapour produced no DNA damage even at 28 times the equivalent smoke dose. The findings suggest that e-cigarettes are safer than smoking cigarettes.
A study of 129,535 Americans aged 50+ found that never-smoking older African American women had the highest COPD prevalence, with 7% and 5.2% in White women, respectively. Hormones and second-hand smoke exposure may contribute to this vulnerability.
Researchers used smoking/vaping robots to study e-cigarette aerosol's effect on human lung cells. The results show that e-cigarette aerosol is effectively delivered to cell surfaces, despite having a reduced biological impact compared to cigarette smoke.
A new study detected traces of THC, a primary psychoactive chemical in marijuana, in the urine of children exposed to secondary marijuana smoke. Higher concentrations were found in non-white children compared to white children. Researchers call for further investigation into secondhand marijuana smoke exposure as a potential health risk.
Researchers at Mount Sinai have found measurable amounts of THC in the urine of young children exposed to secondhand marijuana smoke. The study highlights the need for education and awareness about the dangers of secondhand smoke to children in areas where marijuana use is common.
A study of over 10,000 adults and teens found that most people wrongly believe that tobacco additives are the main source of harmful chemicals in cigarette smoke. In reality, the chemicals produced by burning cigarettes pose a greater risk to health.
A recent study published in JAMA Internal Medicine found that long-term, low-intensity smoking is associated with a higher risk of death from all causes and lung cancer. The research also showed that former smokers who quit at a younger age had progressively lower risks of death.
A new study by Professor Linda Pagani and colleagues found that children exposed to tobacco smoke in early childhood are more likely to develop antisocial behavior, conduct problems, and drop out of school at age 12. The study controlled for other factors to isolate the impact of early household smoke exposure.
Research links household smoke exposure in early childhood to increased self-reported antisocial behavior in early adolescence. Long-term neurotoxic effects of second-hand smoke are suggested as a contributing factor.
Multiple wildfires are currently burning across several states in the southern United States, including the Boteler, Maple Springs, Tellico, Party Rock, Chestnut Knob, Rough Ridge, and Rock Mountain fires. The largest fire, the Rough Ridge fire, has burned over 19,411 acres in Georgia's Cohutta Wilderness Area.
A study found that teens with asthma are twice as likely to smoke as their healthy counterparts. Despite knowing smoking is bad for health, they often smoke to manage anxiety and stress.
A new study finds that smokers are at nearly twice the risk of developing an abdominal aortic aneurysm compared to non-smokers. Quitting smoking can reduce this risk by substantial amounts, particularly among current and former female smokers.
In a lab-based test using the Ames assay, scientists found that e-cigarette vapour did not cause DNA mutations in bacteria, unlike tobacco smoke. The results suggest that e-cigarettes may be less harmful than cigarettes, supporting growing evidence of their potential as a safer alternative.
Researchers identified distinct mutational signatures associated with tobacco smoke, including Signature 4 and Signature 5. These signatures are linked to specific types of cancer, such as lung and larynx cancers, and may be driven by a cytidine deaminase enzyme or other unknown mechanisms.
Scientists created an airway-on-a-chip that simulates the effects of smoking on human lungs, revealing changes in gene expression and cilia beat patterns. The technology also showed promise for testing e-cigarettes and identifying potential therapies for COPD.
Researchers have developed a device that mimics the effects of cigarette smoke on human lungs, providing new insights into how non-smokers and COPD patients respond to smoke. The device enables the comparison of physiological responses in healthy individuals and COPD patients before and after exposure to cigarette smoke.
A new study shows that smoking bans in cities and states lead to a significant reduction in the number of young people who start or continue smoking cigarettes. The study found that light smokers are more likely to give up cigarettes after a ban is implemented, while heavier smokers were not affected by the ban.
Lab tests reveal e-cigarette vapor does not cause oxidative stress and cell death in lung epithelial cells, unlike cigarette smoke. Researchers developed a standardized method to compare the effects of conventional cigarette smoke and e-cigarette vapor on lung cells.
Lab tests reveal e-cigarette vapor is non-toxic to human lung cells, even at unrealistically high doses. Cigarette smoke proves cytotoxic, with lung cells showing low levels of toxicity only after equivalent daily exposure in just one hour.
A recent study by British American Tobacco found that e-cigarette vapour contains toxicant levels on average 95% lower than conventional cigarette smoke. The study measured 142 compounds in e-cigarette vapour and found substantial reductions in toxicant groups, with most cigarette smoke toxicants undetectable.
A study led by Duke University researchers found that blocking the production of a key receptor can reduce the toxicity of cigarette smoke on zebrafish embryos. The receptors were found to play a role in early embryonic development, particularly the formation of bone, heart and muscle tissues.
A University of Louisville researcher found that having children in the home does not prompt parents to test for radon and secondhand smoke, both major contributors to lung cancer. Radon and tobacco smoke have synergistic effects, increasing lung cancer risk, especially in Kentucky where incidence rates are highest.
A UK-wide trial found that smokers with Crohn's disease are more likely to experience a recurrence after surgery. The study suggests that quitting smoking is crucial in preventing the condition from worsening.
A survey of US physicians reveals they frequently discuss e-cigs with patients, recommending e-cigs as a way to reduce smoking, but cautioning against using them to quit. However, the study found that many doctors are uncertain about their knowledge of e-cigs and are often asked by patients about their use.
The Blue Cut Fire in California is a rapidly growing wildfire that poses an imminent threat to public safety, rail traffic, and structures in several areas. The fire has already affected over 82,000 people and damaged an estimated number of structures, with firefighters battling hot, dry, and breezy conditions.
A $440,000 NIH grant is supporting a 3-year study examining the impact of cigarette smoke and genetic factors on female fertility. The researchers will assess ovarian reserve, in vitro fertilization success rates, and NAT2 genotype to better understand the relationship between smoking, genetics, and infertility.
A new Yale-led study estimates that by mid-century, over 82 million people will experience 'smoke waves,' or consecutive days with high air pollution related to fires. The regions likely to receive the highest exposure include northern California, western Oregon, and the Great Plains.
Researchers identified hundreds of western US counties with high risk of exposure to wildfire smoke, affecting up to 82 million people by 2051. The study found that climate change will cause longer, more intense, and frequent 'smoke waves' impacting children, seniors, and communities.
A team of Penn State researchers identified a genetic mutation in modern humans that increased their tolerance to toxic smoke and fire. This mutation, found only in humans, may have given ancient humans an edge over Neandertals, who were more susceptible to respiratory problems and cellular toxicity.
A new study by Oregon State University researchers has found that teens who smoke daily report significantly higher levels of health complaints than their nonsmoking peers. The study also reveals a widening gap in health complaints between smoking and nonsmoking teens, with girls reporting more health issues than boys.
A new study published in the American Heart Association Rapid Access Journal Report found that secondhand marijuana smoke can cause temporary damage to blood vessels, similar to tobacco smoke. Exposure to secondhand marijuana smoke lasted for at least 90 minutes, whereas tobacco smoke exposure recovered within 30 minutes.
A study found that carbon-finance-approved cookstoves had only moderately lower indoor concentrations of pollutants compared to traditional stoves. The improvements were less than anticipated, with some families even continuing to use traditional stoves due to their preference for certain dishes.