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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.

Study finds link between depression and initiation of e-cigarette use among college students

The emergence of e-cigarettes as a nicotine product has left scientists with many questions about their impact on health, including how the product interacts with depression.

13 Feb 2017

‘Smokeless Doesn't Mean Harmless’ effort fails to provide much-needed information on product risks

Last spring, the U.S. Food and Drug Administration unveiled a $36 million ad campaign focused on the dangers of smokeless tobacco use among rural teens.

9 Feb 2017

Study finds high levels of toxic metals in e-cigarette liquids

A study led by researchers at the Johns Hopkins Bloomberg School of Public Health found high levels of toxic metals in the liquid that creates the aerosol that e-cigarette users inhale when they vape.

7 Feb 2017

Researchers evaluate biological effects of exposure to cigarette smoke versus e-cigarette aerosols

Researchers reported changes in the expression levels of 123 genes when reconstituted lung tissue was exposed to cigarette smoke, compared to only two genes that could be confirmed following exposure to e-cigarette aerosols.

6 Feb 2017

Thirdhand smoke exposure leads to biological effects on weight and cell development

The sticky residue left behind by tobacco smoke can do worse damage than stinking up furniture and discoloring walls.

3 Feb 2017

Addicted individuals show weaker brain response to anticipating rewards, research finds

It may be difficult for addicted individuals to learn when they can expect a reward. This learning problem could perhaps explain why they are more prone to addiction and find it difficult to kick the habit.

3 Feb 2017

Study looking for toxicity markers in smokers who replace tobacco for e-cigarettes seeks volunteers

The first study to closely follow toxicity markers in smokers who replace tobacco for e-cigarettes is seeking volunteers.

2 Feb 2017

Nicotine creates cascade of effects in the brain that get worse over time

The first period of nicotine abstinence proceeded as expected. The surprise came after three months when the lab rats suddenly became fearless and sought out well-lighted areas that prey animals normally avoid. At the same time, signaling in the brain's reward system changed, as shown by a study at Sahlgrenska Academy.

2 Feb 2017

Habitual e-cigarette use may be linked to long-term cardiac risks, study finds

A study published in JAMA Cardiology has added to growing evidence that electronic cigarettes (e-cigarettes) are not harmless.

1 Feb 2017

Smoke-free policy reduces nicotine levels among Philadelphia's public housing residents, study shows

Philadelphia's public housing residents are breathing in less secondhand smoke since a 2015 comprehensive smoke-free policy went into place, a new study indicates.

31 Jan 2017

Nicotine normalizes genetically-induced brain impairments linked to schizophrenia

A steady stream of nicotine normalizes genetically-induced impairments in brain activity associated with schizophrenia, according to new research involving the University of Colorado Boulder.

24 Jan 2017

Cigarette smoking increases by 40% during military service in Israel Defense Forces, research finds

In new research published in the peer-reviewed journal Nicotine & Tobacco Research, researchers in Israel found that cigarette smoking increased by almost 40% during compulsory military service in the Israel Defense Forces.

23 Jan 2017

E-cigarettes attracting youth to use tobacco products, new UC San Francisco study finds

E-cigarettes - thought by some to be responsible for a decline in youth cigarette smoking - are actually attracting a new population of adolescents who might not otherwise have smoked tobacco products, according to a new UC San Francisco study.

23 Jan 2017

Physician explains how poor or low-quality sleep hinders common resolutions

Making New Year's resolutions is easy. Keeping them — beyond a couple of weeks, at least — is tough.

20 Jan 2017

Second-hand smoke exposures before conception affect fetal brain development

Exposure to second-hand tobacco smoke -- even before conception -- appears to have a lingering impact that can later impair the brain development of a fetus, researchers at Duke Health report.

5 Jan 2017

Dermatologist reveals how smoking can affect the skin

Thinking of quitting smoking? Dr Anjali Mahto, Consultant Dermatologist tells us how smoking affects the skin, giving you an extra incentive to ditch the habit for good.

5 Jan 2017

Children increasingly at risk of toxicity from liquid nicotine used in electronic cigarettes

A 6-year-old child who accidentally swallowed liquid nicotine intended for her parents' electronic cigarettes required immediate emergency medical treatment that included intubation and an overnight stay in a pediatric intensive care unit.

5 Jan 2017

Many smokers desire counseling to help them quit, but only few are receiving it

Among American adults who have a serious mental illness such as schizophrenia, bipolar disorder or clinical depression, 57 percent are smokers. In contrast, only 15 percent of U.S. adults overall smoke.

30 Dec 2016

Misleading labeling provides hookah users with erroneous information, new study finds

Label information on many hookah tobacco products is misleading and may be misinterpreted by consumers, according to new research on nicotine and pH levels in hookah tobacco.

17 Dec 2016

Surgeon General report reveals increasing rate of electronic cigarette use among adolescents

The United States Surgeon General recently issued a report that adolescents' use of electronic cigarettes has more than tripled since 2011. As recently as 2010, e-cigarettes were rare, but in 2015, 40 percent of high school students said they had used e-cigarettes at least once and 16 percent reported that they used such products in the past 30 days.

16 Dec 2016

Nicotine News and Research

Further Reading

Study finds link between depression and initiation of e-cigarette use among college students

‘Smokeless Doesn't Mean Harmless’ effort fails to provide much-needed information on product risks

Study finds high levels of toxic metals in e-cigarette liquids

Researchers evaluate biological effects of exposure to cigarette smoke versus e-cigarette aerosols

Thirdhand smoke exposure leads to biological effects on weight and cell development

Addicted individuals show weaker brain response to anticipating rewards, research finds

Study looking for toxicity markers in smokers who replace tobacco for e-cigarettes seeks volunteers

Nicotine creates cascade of effects in the brain that get worse over time

Habitual e-cigarette use may be linked to long-term cardiac risks, study finds

Smoke-free policy reduces nicotine levels among Philadelphia's public housing residents, study shows

Nicotine normalizes genetically-induced brain impairments linked to schizophrenia

Cigarette smoking increases by 40% during military service in Israel Defense Forces, research finds

E-cigarettes attracting youth to use tobacco products, new UC San Francisco study finds

Physician explains how poor or low-quality sleep hinders common resolutions

Second-hand smoke exposures before conception affect fetal brain development

Dermatologist reveals how smoking can affect the skin

Children increasingly at risk of toxicity from liquid nicotine used in electronic cigarettes

Many smokers desire counseling to help them quit, but only few are receiving it

Misleading labeling provides hookah users with erroneous information, new study finds

Surgeon General report reveals increasing rate of electronic cigarette use among adolescents

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