News tagged with nicotine

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

New e-cigarettes affect users' airways

(Medical Xpress) -- E-cigarettes, or electronic cigarettes, are promoted as a safer alternative to smoking. However, a new study published in the journal Chest, shows that these e-cigarettes cause immediate change ...

Jan 06, 2012
popularity 3.2 / 5 (10) | comments 18 | with audio podcast report

A vaccine for nicotine?

(Medical Xpress) -- When Peter Burkhard first heard the idea of a nicotine vaccine eight years ago, he thought it was funny – how could a vaccine affect something that’s not technically a disease?

Oct 04, 2011
popularity 4.2 / 5 (5) | comments 1

Old tobacco playbook gets new use by e-cigarettes

Companies vying for a stake in the fast-growing electronic cigarette business are reviving the decades-old marketing tactics the tobacco industry used to hook generations of Americans on regular smokes.

Aug 03, 2013
popularity 4.2 / 5 (5) | comments 1

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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