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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.
Unknown exposure to second-hand smoke linked to increased mortality in non-smokers

Unknown exposure to second-hand smoke linked to increased mortality in non-smokers

A new biomarker has identified known and unknown exposure to second-hand smoke and confirmed a strong association to increased mortality in non-smokers, according to a new study from the Icahn School of Medicine at Mount Sinai. [More]
Study examines prevalence of mental disorders in cancer patients

Study examines prevalence of mental disorders in cancer patients

In an investigation published in the current issue of Psychotherapy and Psychosomatics a group of German investigators provides the largest survey of mental disorders in cancer. Psychological problems are common in cancer patients. [More]
Texas A&M research shows nicotine could help protect the aging brain

Texas A&M research shows nicotine could help protect the aging brain

Everyone knows that tobacco products are bad for your health, and even the new e-cigarettes may have harmful toxins. [More]
Short talk with knowledgeable nurse could help smokers quit cigarettes

Short talk with knowledgeable nurse could help smokers quit cigarettes

A short talk with a knowledgeable nurse could be the difference between a smoker stopping for cigarettes or stopping for nicotine gum on her way home from the hospital. [More]
Belief about nicotine in cigarette may influence brain signals linked to cravings

Belief about nicotine in cigarette may influence brain signals linked to cravings

Craving relief may depend more on the belief of satisfaction than actual relief, according to scientists at the Virginia Tech Carilion Research Institute and the Center for BrainHealth at The University of Texas at Dallas. [More]
New review concludes effects of electronic cigarettes remain unchanged

New review concludes effects of electronic cigarettes remain unchanged

An updated Cochrane Review published today provides an independent, rigorous assessment of the best available evidence to date about electronic cigarettes for quitting smoking. [More]
College degree linked to use of ENDS with intention to quit cigarette smoking

College degree linked to use of ENDS with intention to quit cigarette smoking

Users of both electronic nicotine delivery systems (ENDS) and cigarettes may be more intent on quitting tobacco, but that intention seems to drop off among less educated smokers, according to a study by Georgia State University researchers published in the journal Addictive Behaviors. [More]
Maternal smoking linked to increased risk for Tourette syndrome and tic disorders

Maternal smoking linked to increased risk for Tourette syndrome and tic disorders

A study published in the September 2016 issue of the Journal of the American Academy of Child and Adolescent Psychiatry found an association between maternal smoking during pregnancy and an increased risk for Tourette syndrome and other chronic tic disorders. [More]
Researchers reveal novel link between nicotine and inflammation

Researchers reveal novel link between nicotine and inflammation

An Umeå-based team in collaboration with US researchers reveals a new link between nicotine and inflammation. [More]
Physicians vary greatly in their responses to patients about e-cigarettes, study reveals

Physicians vary greatly in their responses to patients about e-cigarettes, study reveals

If you ask two different doctors about e-cigarettes, you might get two different answers. [More]
Nicotinic receptors could be new therapeutic target to prevent memory loss linked to Alzheimer's

Nicotinic receptors could be new therapeutic target to prevent memory loss linked to Alzheimer's

Several scientific studies have indicated that nicotine may be beneficial for memory function. [More]
Bacteria in smokeless tobacco products linked to opportunistic infections

Bacteria in smokeless tobacco products linked to opportunistic infections

Several species of bacteria found in smokeless tobacco products have been associated with opportunistic infections, according to a paper published August 26 in Applied and Environmental Microbiology, a journal of the American Society for Microbiology. [More]
Banning tobacco product sales near schools could reduce disparities in tobacco retailer density

Banning tobacco product sales near schools could reduce disparities in tobacco retailer density

Banning tobacco sales within 1,000 feet of schools could reduce socioeconomic and racial/ethnic disparities in tobacco density across neighborhoods, according to a study being published today in the journal Nicotine & Tobacco Research. [More]
New genetic markers linked to fast rate of nicotine metabolism in smokers may raise risk for lung cancer

New genetic markers linked to fast rate of nicotine metabolism in smokers may raise risk for lung cancer

University of Hawai'i Cancer Center researchers discovered new genetic markers associated with a fast rate of nicotine metabolism, which potentially leads smokers to smoke more, thereby, increasing their risk for lung cancer. [More]
New study suggests increased levels of hypocretin in the brain may play role in cocaine addiction

New study suggests increased levels of hypocretin in the brain may play role in cocaine addiction

A new study from scientists at The Scripps Research Institute, funded by the National Institutes of Health's National Institute on Drug Abuse and National Institute on Alcohol Abuse and Alcoholism, suggests that increased levels of a molecule in the brain, called hypocretin, may contribute to cocaine addiction. [More]
Study finds high rate of misuse of seizure and pain drug

Study finds high rate of misuse of seizure and pain drug

With increasing public attention to overdose deaths and misuse of prescription medications in the United States, researchers today presented the results of a new study looking at abuse and misuse of gabapentin, a medication used to treat seizures and relieve nerve pain often associated with shingles. [More]
Researchers using internet to find study participants may hamper recruitment of minority, poor people

Researchers using internet to find study participants may hamper recruitment of minority, poor people

Recruiting minorities and poor people to participate in medical research always has been challenging, and that may not change as researchers turn to the internet to find study participants and engage with them online, new research suggests. [More]
Teenagers who smoke daily report higher levels of health complaints

Teenagers who smoke daily report higher levels of health complaints

As fewer teens overall take up smoking, those who do smoke daily are reporting more health complaints than in years past, a new study indicates. [More]
Smoking-related deficits in brain dopamine return to normal after quitting, study reports

Smoking-related deficits in brain dopamine return to normal after quitting, study reports

A new study in Biological Psychiatry reports that smoking-related deficits in brain dopamine, a chemical implicated in reward and addiction, return to normal three months after quitting. [More]
Use of nicotine patches or Zyban drug during pregnancy benefits both mother and child

Use of nicotine patches or Zyban drug during pregnancy benefits both mother and child

The results of a study conducted by Dr. Anick Bérard, Professor and Fonds de recherche du Québec - Santé Research Chair on Medications and Pregnancy, at the University of Montreal's Faculty of Pharmacy and the Ste-Justine University Hospital demonstrate that the use of nicotine patches or the drug Zyban has positive effects for the unborn child and allows pregnant women to stop smoking during and after pregnancy. [More]
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