News tagged with nicotine

Related topics: smokers , smoking , smoking cessation , cigarettes , cigarette smoke

Spike in US poison calls over e-cigarettes (Update)

The number of calls to US poison control centers about accidents with bottles of liquid nicotine for refilling e-cigarettes—many involving children—has spiked in recent years, health authorities said Thursday.

Apr 03, 2014
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Nicotine 'e-liquids' pose serious health threat

(HealthDay)—A potent, liquid form of nicotine poses a serious and potentially deadly threat, but is sold legally in stores across the United States and online. The so-called "e-liquids"—the key ingredients ...

Mar 25, 2014
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New data shows spike in smokeless tobacco sales

The number of smokeless tobacco products sold in Massachusetts is soaring, as are the levels of nicotine packed into many of them, according to a new analysis from UMass Medical School and the Massachusetts Department of ...

Mar 20, 2014
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The rise of e-cigarettes

The use of electronic cigarettes has grown rapidly across the United States, prompting questions about their safety and whether they serve as a gateway to conventional cigarettes or a means of kicking the habit—or at least ...

Mar 11, 2014
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Tips for quitting smoking in 2014

Many smokers make kicking the habit their top New Year's resolution. It's a popular goal, so much so that there are more former smokers in the U.S.—nearly 50 million—than current smokers, according to ...

Jan 13, 2014
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Nicotine exploits COPI to foster addiction

A study in The Journal of General Physiology helps explain how nicotine exploits the body's cellular machinery to promote addiction. The findings could lead to new therapies to help people quit smoking.

Dec 30, 2013
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Want to stop smoking? See a specialist

Smokers in England who want to stop smoking are three times more likely to succeed if they see a trained advisor than if they try by themselves, according to a new study published online today in the medical journal Addiction. Worryi ...

Dec 20, 2013
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Nicotine

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. It functions as an antiherbivore chemical with particular specificity to insects; therefore nicotine was widely used as an insecticide in the past, and currently nicotine analogs such as imidacloprid continue to be widely used.

In low concentrations (an average cigarette yields about 1 mg of absorbed nicotine), the substance acts as a stimulant in mammals and is one of the main factors responsible for the dependence-forming properties of tobacco smoking. According to the American Heart Association, "Nicotine addiction has historically been one of the hardest addictions to break." The pharmacological and behavioral characteristics that determine tobacco addiction are similar to those that determine addiction to drugs such as heroin and cocaine. Nicotine content in cigarettes has actually slowly increased over the years, and one study found that there was an average increase of 1.6% per year between the years of 1998 and 2005. This was found for all major market categories of cigarettes.

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