Effects of Nicotine on Brain Development Port Jefferson Station NY

Researchers have found that nicotine, the addictive component in cigarettes, "tricks" the brain into creating memory associations between environmental cues and smoking behavior. This could help explain why former smokers miss lighting up when they are in a bar or after a meal.

Local Companies

Frederick S Mortati
(631) 547-0505
152 East Main St
Huntington, NY
BRUCE CHERNOFSKY, MD
(631) 444-6919
University Hospital At Stony Brook
Stony Brook, NY
DONNA DONOGHUE, MD
(631) 444-2571
2500 Nesconset Highway,
Stony Brook, NY
Jack Michael Greenwood, MD
631-474-0444
120 N Country Rd
Port Jefferson, NY
Edward Patrick Ryan, MD
516-421-2144
7 High Oak Ct
Huntington, NY
Sumeer Sathi
(631) 475-5511
100 Hospital Rd
East Patchogue, NY
Mark J Zuckerman MD
(631) 360-3366
363 Route 111
Smithtown, NY
CIPRIAN SPENSER, MD
(631) 444-3005
Stony Brook University Hospital
Stony Brook, NY
Michael Ottmar Sauter, MD
631-331-6667
120 N Country Rd
Port Jefferson, NY
Borimir Jivkov Darakchiev, MD
631-422-5371
1175 Montauk Hwy Ste 6
West Islip, NY
Data Provided by:
      

Provided By:

WEDNESDAY, Sept. 9 (HealthDay News) -- Researchers have found that nicotine, the addictive component in cigarettes, "tricks" the brain into creating memory associations between environmental cues and smoking behavior. This could help explain why former smokers miss lighting up when they are in a bar or after a meal.

The findings from researchers at Baylor College of Medicine are in the Sept. 10 issue of the journal Neuron.

"Our brains normally make these associations between things that support our existence and environmental cues so that we conduct behaviors leading to successful lives. The brain sends a reward signal when we act in a way that contributes to our well being," study co-author Dr. John A. Dani, professor of neuroscience at BCM said in a college news release. "However, nicotine commandeers this subconscious learning process in the brain so we begin to behave as though smoking is a positive action."

Dani said that environmental events linked with smoking can become cues that prompt the smoking urge. Those cues could include alcohol, a meal with friends or even the drive home from work.

Dani and Dr. Jianrong Tang, instructor of neuroscience at BCM and co-author of the report, recorded the brain activity of mice as they were exposed to nicotine.

The mice were allowed to roam through an apparatus with two compartments. In one compartment, they received nicotine. In the other, they got a saline solution. The researchers recorded how long the mice spent in each compartment and brain activity within the hippocampus, an area of the brain that creates new memories.

"The brain activity change was just amazing," Dani said. "Compared to injections of saline, nicotine strengthened neuronal connections -- sometimes up to 200 percent. This strengthening of connections underlies new memory formation."

Dani said understanding mechanisms that create memory could have implications in future research and treatments for memory disorders, such as Alzheimer's disease, and for dopamine signaling disorders, such as Parkinson's disease.

More information

The National Institutes of Health has more information on nicotine here.

SOURCE: Baylor College of Medicine, news release, Sept. 9, 2009

Copyright © 2009 ScoutNews, LLC. All rights reserved.

Read Article at HealthDay.com

Related Articles
- Protein and Brain Circuitry Port Jefferson Station NY
naturally occurring protein plays a role in the disrupted functioning of the brain's reward circuitry seen in people with drug and alcohol dependence, says a new study. "If we can understand how the brain's circuitry changes in association with drug abuse, it could potentially suggest ways to medically counteract the effects of dependency," Scott Steffensen, a study co-author and a neuroscientist at Brigham Young University in Provo, Utah, said in a news release.
- Anxiety Disorders Port Jefferson Station NY
- Stop Smoking Aids Port Jefferson Station NY
- DHA for Increasing Cognitive Skills in Infants Port Jefferson Station NY
- Benefits of Krill Oil Port Jefferson Station NY
- Nicotine Addiction Port Jefferson Station NY
- Omega-3 Benefits and Effects Port Jefferson Station NY
- Quit Smoking Aids Port Jefferson Station NY
- Dangers of Underage Drinking Port Jefferson Station NY
- Quitting Smoking Tips Port Jefferson Station NY