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Nicotine is an alkaloid found in the nightshade family of plants (''Solanaceae'') which constitutes approximately 0.6–3.0% of dry weight of tobacco, with biosynthesis taking place in the roots, and accumulating in the leaves.

Medscape agrees to remove tobacco-industry funded smoking cessation courses

Medical education provider Medscape has bowed to pressure and agreed to permanently remove a series of accredited medical education courses on smoking cessation funded by the tobacco industry giant Philip Morris International (PMI), The BMJ and The Examination have found.

26 Apr 2024

Cost becomes a significant factor in smoking cessation efforts

Health concerns are still the primary motive for more than half of those who say they want to stop smoking in England, but cost is now a key factor for more than 1 in 4, finds an analysis of national survey responses, published in the open access journal BMJ Public Health.

23 Apr 2024

Unveiling how community pharmacies aid smoking cessation efforts

A new study shows community pharmacies may play a key role in helping people quit smoking.

23 Apr 2024

Integrating stop smoking support with lung cancer screening could save lives

A new study has found that by offering stop smoking support as part of the national lung cancer screening programme, there is potential to save lives, and dedicated funding must be considered by policy makers.

18 Apr 2024

Unraveling the mysteries of gastro-esophageal junction development

The transition from the esophagus to the stomach is a delicate region from a medical point of view, often associated with pathological disorders leading to cancer.

13 Apr 2024

Concordia researchers link vaping additives to lung damage

The health risks associated with consumption of tobacco and cannabis products are well-established by now. Much less understood are the risks associated with vaping, particularly flavoured products popular with young adults.

4 Apr 2024

Gut flora disruption in infancy linked to autism and ADHD

Disturbed gut flora during the first years of life is associated with diagnoses such as autism and ADHD later in life.

3 Apr 2024

Study shows increased smoking cessation rates among e-cigarette users

A new paper in Nicotine & Tobacco Research, published by Oxford University Press, finds that smokers who switch to electronic cigarettes are now more likely to stop smoking regular cigarettes.

3 Apr 2024

New research links social factors to cardiovascular risk in Asian American adults

Having more unfavorable social determinants of health, such as being unemployed, uninsured or not having education beyond high school, was associated with an increased likelihood of having risk factors for cardiovascular disease among Asian American adults, according to new research published today in the Journal of the American Heart Association, an open access, peer-reviewed journal of the American Heart Association.

3 Apr 2024

E-cigarette use linked to increased risk of heart failure, large study finds

People who use e-cigarettes are significantly more likely to develop heart failure compared with those who have never used them, according to one of the largest prospective studies to date investigating possible links between vaping and heart failure.

2 Apr 2024

Emergency departments prove fertile ground for smoking cessation success

The Cessation of Smoking Trial in the Emergency Department (COSTED) study demonstrates that a brief intervention including e-cigarette starter kits can significantly help smokers in emergency departments quit, offering a new avenue to tackle smoking rates and associated health inequalities.

28 Mar 2024

Is smoking linked to abdominal obesity?

Researchers estimate the causal relationship between smoking and abdominal obesity.

27 Mar 2024

Study sheds light on the interplay of genes in smoking addiction

Take a puff of nicotine for the first time, and your DNA plays an important role, alongside social and environmental factors, in shaping what happens next.

26 Mar 2024

Emergency department intervention aids in long-term smoking cessation

An opportunistic emergency department stop smoking prompt, comprising brief advice by a trained professional, an e-cigarette starter kit, and referral to local stop smoking services can help smokers quit, with a significant proportion of them still not smoking 6 months later, finds research published online in Emergency Medicine Journal.

26 Mar 2024

Feedback loop involving estrogen linked to women's higher propensity to nicotine addiction

A newly discovered feedback loop involving estrogen may explain why women might become dependent on nicotine more quickly and with less nicotine exposure than men.

25 Mar 2024

Second-hand vape smoke linked to more asthma symptoms in kids

Study in the journal Children explored the impact of second-hand e-cigarette smoke on children with asthma, suggesting increased symptomatic days despite no significant difference in clinical intervention needs, underscoring the importance of awareness about e-cigarette smoke's potential harms.

20 Mar 2024

Nano-sized toxic metals found in cannabis vaping liquids even before the first use

Vapes have often been heralded as a "safer" way to consume either nicotine or cannabis, where legal to do so.

19 Mar 2024

Lower grades for students who use both tobacco and cannabis, California survey reveals

A recent study published in The Journal of Pediatrics examines the odds of these outcomes when tobacco and cannabis are co-used after compensating for other risks.

18 Mar 2024

Lesbian, gay and bisexual women respond more positively to tobacco marketing

People who identify as lesbian, gay and bisexual – particularly women – respond more positively to tobacco marketing, are more inclined to smoke cigarettes daily and may have a more difficult time quitting, according to two studies by a Rutgers Health researcher.

15 Mar 2024

Taking "study drugs" can lead to other drug use and decline in mental health

Taking "study drugs" like Adderall without a diagnosis is not only dangerous in itself, but can lead to other drug use and a decline in mental health, according to new research from Binghamton University, State University of New York.

11 Mar 2024