AccessMyLibrary provides FREE access to over 30 million articles from top publications available through your library.
Create a link to this page
Copy and paste this link tag into your Web page or blog:
Scientists find out what makes nicotine pleasurable _ and addictive.
Byline: Ronald Kotulak
CHICAGO _ Working to unravel a long-standing puzzle of cigarette addiction, University of Chicago researchers have discovered why smoking is uniquely pleasurable and why nicotine has such ferociously addictive powers.
Published Thursday in the scientific journal Neuron, the research shows that nicotine not only stimulates pleasure in the brain's reward center but has the unique ability to neutralize the "off-switch" that usually throttles down good feelings quickly.
The finding provides major clues to understanding the complex process by which the brain becomes addicted to nicotine and opens new approaches to developing drugs to block nicotine's power to hijack the brain.
For the 2,000 teenagers a day who become regular smokers, the new evidence helps to explain how a single cigarette quickly teaches the brain cells of a first-time smoker…
- New evidence on addiction to medicines Diazepam has effect on nerve cells in...
- Newspaper article from: Biotech Week September 10, 2008 700+ words
...The process involves both structural and functional changes in brain nerve cells that are still poorly understood. However, a single...research it seems that diazepam causes a similar change in the brain's reward-inducing dopamine cells as a dose of alcohol...
- Obesity predisposition traced to the brain's reward system.
- Newspaper article from: Obesity & Diabetes Week August 11, 2008 700+ words
...toward obesity is directly related to the brain system that is involved in food reward...mesolimbic system is a system of neurons in the brain that secretes dopamine, a neurotransmitter...release was significantly attenuated in the brain reward systems of obesity-prone rats...
- Obesity traced to brain's reward system.
- News wire article from: UPI NewsTrack August 14, 2008 700+ words
...release into the mesolimbic system of the brain is associated with euphoria, and is considered...release was significantly attenuated in the brain reward systems of obesity-prone rats...of the study's authors. "Defects in brain dopamine synthesis and release were evident...
- Obesity linked to brain's reward system.
- News wire article from: UPI NewsTrack July 30, 2008 700+ words
...release was significantly attenuated in the brain reward systems of obesity-prone rats...mesolimbic system is a system of neurons in the brain that secretes dopamine, a neurotransmitter...addiction, the researchers said. "Defects in brain dopamine synthesis and release were evident...
- Alcohol activates the cerebral reward system in man.
- Magazine article from: Journal of Studies on Alcohol Ingvar, M. Ghatan, P.H. Wirsen-Meurling, A. Risberg, J. Heijne, G. von Stone-Elander, S. Ingvar, D.H. May 1, 1998 700+ words
...of a "pleasure center" in the brain has been discussed by Olds (1976...been called the motivational or reward system of the brain. It has been assumed that the...The development of functional brain imaging enables a detailed study...
- Stimulant addiction: stimulants, such as cocaine, present serious health...
- Magazine article from: New York Times Upfront February 16, 2009 700+ words
...paranoid How Cocaine Interferes with the Brain's "Reward System" The brain has many different "systems" that control how our bodies function. In the "reward system" the brain chemical dopamine is released, producing...
- ADDICTS HAVE FAULTY BRAKES IN BRAIN.
- News wire article from: Asia Africa Intelligence Wire February 23, 2005 700+ words
...challenged a long-held belief of an over-responsive reward system in the brain as the root cause of addictive behaviour. "The brain has a reward system that when you engage in activities that help promote...
- Single Cocaine Exposure Triggers Long-Lasting Surge Of Brain Activity.
- Newspaper article from: Pain & Central Nervous System Week June 16, 2001 700+ words
...team measured. The changes in brain neuron activity induced by the...profound effect throughout the brain, particularly other areas involved...addiction." Since the dopamine "reward system" permeates most brain regions, the researchers expect...
- Symposium examines the neuroscience of alcoholism. ("The Neuroscience of...
- Newspaper article from: The Alcoholism Report June 1, 1994 700+ words
...that the action of alcohol on the brain plays a central role in intoxication...findings from the neurochemical, brain imaging, and molecular genetic...treatment strategies. Alcohol and the Reward System of the Brain Dr. George Koob, member, department...
- Some of the effects of acupuncture in knee pain may be due to activation of the...
- Magazine article from: Acupuncture in Medicine Lundeberg, Thomas October 1, 2006 700+ words
...wellbeing. One area in the brain that is affected by acupuncture...system consists of a group of brain structures, including the...results in the activation of the reward system. These findings are supported...modulate activity in the reward system. Keywords Acupuncture, limbic...
Source: HighBeam Research, Scientists find out what makes nicotine pleasurable _ and addictive.
Other Gale sites: Encyclopedia.com | HighBeam Research | Acquire Content | Books & Authors | Goliath | MovieRetriever | Smart QandA
The AccessMyLibrary advertising network includes:
