News tagged with nicotine dependence
Research explores link between asthma and smoking
New research out of the University of Cincinnati suggests that being diagnosed with asthma is significantly associated with a greater risk for a lifetime history of daily smoking and nicotine dependence. The findings are ...
Medicine & Health / Diseases, Conditions, Syndromes
Mar 30, 2011 |
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Smoking abstinence found more effective with residential treatment
In the March issue of Mayo Clinic Proceedings, researchers report that residential treatment for tobacco dependence among heavy smokers greatly improves the odds of abstinence at six months compared with standard outpatient treatm ...
Mar 08, 2011 |
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Including smoking cessation program with treatment for PTSD shows higher rate of quitting
Among smokers with military-related posttraumatic stress disorder (PTSD), integrating smoking cessation treatment with mental health care for PTSD resulted in higher rates of prolonged smoking abstinence, compared to referral ...
Dec 07, 2010 |
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New compounds may treat both alcohol and cigarette addictions
Researchers at the Ernest Gallo Clinic and Research Center at the University of California, San Francisco, and Pfizer Inc., have determined that two new compounds may be effective in treating both alcohol and nicotine dependence ...
Medicine & Health / Neuroscience
Nov 03, 2010 |
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The more someone smokes, the smaller the number of gray cells
Is there a relation between the structure of specific regions of the brain and nicotine dependence? This is the question researchers of the Physikalisch-Technische Bundesanstalt (PTB) Berlin, Germany, have been investigating ...
Oct 28, 2010 |
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Smoking increases depressive symptoms in teens
While some teenagers may puff on cigarettes to 'self-medicate' against the blues, scientists at the University of Toronto and the University of Montreal have found that smoking may actually increase depressive symptoms in ...
Aug 27, 2010 |
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Personalized Approach to Smoking Cessation May Be Reality in Three to Five Years
(PhysOrg.com) -- A personalized approach to smoking cessation therapy is quickly taking shape. New evidence from Duke University Medical Center and the National Institute on Drug Abuse (NIDA) suggests that combining information ...
Jul 13, 2010 |
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Personalized approach to smoking cessation may be reality in 3-5 years
A personalized approach to smoking cessation therapy is quickly taking shape. New evidence from Duke University Medical Center and the National Institute on Drug Abuse (NIDA) suggests that combining information about a smoker's ...
Jul 02, 2010 |
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Researchers testing vaccine to help people quit smoking
In a unique twist to a decades-old health crisis, Michigan State University researchers are testing a new vaccine to help people quit smoking and avoid relapses.
May 21, 2010 |
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Adolescent smokers don't recognize early signs of nicotine dependence
Kids who have just started smoking, but not on a daily basis, don't seem to recognize the early symptoms of dependence, according to a new study.
May 03, 2010 |
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Researchers find genetic variants linked to smoking behaviors
(PhysOrg.com) -- In a paper published in the journal Nature Genetics, a UNC team reported that three genetic regions were associated with the number of cigarettes smoked per day, one region was associated with smoking initia ...
Apr 26, 2010 |
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Work pressures lower nicotine dependence
It is often thought that smoking is used as a coping strategy to deal with work stress. However, the pressures of work can actually lower a smoker's nicotine dependence, contrary to popular belief. The surprising finding ...
Apr 12, 2010 |
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FDA concerned dissolvable tobacco appeals to kids
(AP) -- The Food and Drug Administration is saying in letters to two tobacco companies that flavored, dissolvable tobacco products - that the agency compares with candy and says contain a lot of nicotine - could be particularly ...
Feb 04, 2010 |
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More smokers kick the habit with extended nicotine patch therapy, research shows
New research from the University of Pennsylvania School of Medicine may help more smokers keep their New Year's resolution by helping them quit smoking. Extended use of a nicotine patch - 24 weeks versus the standard eight ...
Feb 01, 2010 |
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Nicotine Dependence Remains Prevalent Despite Recent Declines in Cigarette Use
(PhysOrg.com) -- Despite recent declines in cigarette use in the U.S., nicotine dependence has remained steady among adults and has actually increased among some groups. The finding by researchers at Columbia University Mailman ...
Jul 03, 2009 |
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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.
For more information about Nicotine, read the full article at
Wikipedia.
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