Nicotine News and Research

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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.

Strong relationship of major depressive disorder to alcohol use disorders, drug disorders and other mental health conditions

Findings from the largest survey ever conducted on the co-occurrence of psychiatric disorders among U.S. adults indicates a sharper picture than previously reported of major depressive disorder (MDD) in specific population groups.

27 Oct 2005

Cannabis smoke less likely to cause cancer than tobacco smoke

According to a leading U.S. expert, cannabis smoke is less likely to cause cancer than tobacco smoke.

18 Oct 2005

Men who smoke cigarettes may experience a significant decline in their capacity to father a child

Sperm from nearly two-thirds of the chronic smokers in the study failed a special test that measures the ability of sperm to fertilize an egg. On average, those men showed a 75 percent decline in fertilizing capacity when compared to nonsmokers. Lead researcher Loni Burkman, Ph.D., presented the results today (Oct. 17, 2005) at the American Society of Reproductive Medicine annual meeting in Montreal, Quebec.

17 Oct 2005

Cannabis boosts brain power in rats

Scientists now say that Cannabis, the third most popular recreational drug after alcohol and tobacco, could boost brain power.

17 Oct 2005

Ireland's smoke free law is protecting bar workers

The smoke-free law in the Republic of Ireland is protecting non-smoking bar workers from exposure to secondhand smoke, conclude two studies published online today by the journals, British Medical Journal and Tobacco Control.

16 Oct 2005

Cannabis boosts brain power in rats

Scientists now say that Cannabis, the third most popular recreational drug after alcohol and tobacco, could boost brain power.

16 Oct 2005

Long-term smoking linked to diminished mental proficiency

The association between long-term smoking and diminished mental proficiency in 172 alcoholic and non-alcoholic men was a surprising finding from a study that set out to examine alcoholism's long-term effect on the brain and thinking skills.

11 Oct 2005

Real dangers from environmental toxins most likely occur early in life

Exposure of developing fetuses and newborns to low levels of environmental toxins such as lead, mercury and dioxin, as well as nicotine and ethanol, could be behind the recent sharp rises in asthma, allergies and autoimmune disorders like lupus, says a Cornell University researcher.

10 Oct 2005

Association between long-term smoking and diminished mental proficiency

Smokers often say that smoking a cigarette helps them concentrate and feel more alert. But years of tobacco use may have the opposite effect, dimming the speed and accuracy of a person’s thinking ability and bringing down their IQ, according to a new study led by University of Michigan researchers.

10 Oct 2005

Many people continue to smoke after life threatening event

An international survey published today (Thursday 6 October) in Europe's leading cardiology journal, European Heart Journal, reveals that fewer than half of the heart patients in the study who smoked quit after suffering their first coronary event, with one out of five continuing to smoke despite advice to stop.

5 Oct 2005

Sharper picture than previously available of major depressive disorder

Findings from the largest survey ever mounted on the co-occurrence of psychiatric disorders among U.S. adults afford a sharper picture than previously available of major depressive disorder (MDD) in specific population subgroups and of MDD's relationship to alcohol use disorders (AUDs) and other mental health conditions.

3 Oct 2005

Nicotine has an unusual psychological property that may drive dependence

Associate Professor Athina Markou, Ph.D., who is in the Scripps Research Molecular and Integrative Neurosciences Department at Scripps Research’s La Jolla Campus, and Paul Kenny, Ph.D., a former Research Associate in her laboratory, report in an upcoming issue of the journal Neuropsychopharmacology that nicotine has an unusual psychological property that may drive dependence.

28 Sep 2005

Alcoholics who smoke appear to lose more brain mass than alcoholics who don't smoke

It is already well-known that the brains of long-term alcoholics atrophy and shrink, the study authors say, but the new findings are the first evidence that cigarette smoking might contribute to that atrophy, particularly in grey matter of the parietal and temporal lobes.

28 Sep 2005

Possibility of tailored treatments for addiction based on how a person's genes behave

Scientists have learned how a genetic variation long suspected in making some people susceptible to alcoholism and narcotic drug addiction actually does so.

27 Sep 2005

HDL cholesterol helps prevent blocked arteries and heart attack

Cardiology experts at Johns Hopkins have issued interim guidelines for physicians on how best to treat low levels of HDL cholesterol, the so-called good cholesterol, which helps keep arteries clear from the buildup of LDL cholesterol, the so-called bad cholesterol.

22 Sep 2005

Killer secondhand smoke campaign flares up in the UK

According to new research by the National Health Service (NHS), 60 per cent of smokers light up and smoke without asking for permission, despite the fact that most non-smokers mind if other people are smoking nearby.

6 Sep 2005

Study results counters the popular belief that nicotine exposure curbs appetite

A new study by Yale researchers shows that prior nicotine exposure in mice can increase their motivation to respond work for food, weeks after their last exposure to nicotine, a finding that runs counter to the popular belief that nicotine exposure curbs appetite.

31 Aug 2005

Genetic makeup may detemine likely success of quit smoking therapies

A study by researchers at the Transdisciplinary Tobacco Use Research Center (TTURC) of the University of Pennsylvania School of Medicine indicates that a smoker's genetic make-up may affect whether they quit or not while using either bupropion (Zyban) or nicotine replacement therapies (NRTs) such as the nicotine patch or nasal spray.

30 Aug 2005

Nicotine patch dosage can be adjusted to provide more effective treatment for smokers with a history of alcoholism

Tobacco-caused disease is the leading cause of death for patients with alcoholism, but a study led by The Mayo Clinic Nicotine Dependence Center brings hope to non-depressed, recovering alcoholics who also smoke - individualized nicotine patch therapy. The findings were published in the July issue of Journal of Studies on Alcohol.

15 Aug 2005

Specialist counselling does not help pregnant smokers quit

Motivational interviewing by specially trained midwives does not help pregnant smokers to quit, finds new research in this week's BMJ (British Medical Journal).

11 Aug 2005