MedicineWorld.Org
Your gateway to the world of medicine
Home
News
Cancer News
About Us
Cancer
Health Professionals
Patients and public
Contact Us
Disclaimer

Medicineworld.org: When Smokers 'Forget' To Smoke

Back to society news Blogs list Cancer blog  


Subscribe To Society News RSS Feed  RSS content feed What is RSS feed?

When Smokers 'Forget' To Smoke

When Smokers 'Forget' To Smoke
Preliminary research supported by the National Institute on Drug Abuse (NIDA), a component of the National Institutes of Health, has observed that some smokers with damage to a part of the brain called the insula may have their addiction to nicotine practically eliminated. The study is reported in the January 26, 2007 issue of the journal Science.

"The scientists observed that smokers with insula lesions were 136 times more likely to have their addiction to nicotine erased than smokers with other brain injuries," says NIDA Director Dr. Nora Volkow. "Research that identifies a way to alter the function of this area could have major implications for smokers and addiction therapy in general".

Dr. Antoine Bechara of the University of Southern California and colleagues identified 19 smokers who had experienced some degree of brain damage, resulting in lesions on the insula. Of these, 13 quit smoking. The researchers also identified 50 smokers whose brain injuries did not include damage to the insula. Of these, 19 quit smoking.

The researchers recognized that individuals from both groups-those with damage to the insula or damage to other brain regions-were able to quit smoking. However, some smokers experienced a greater ease in quitting. The researchers developed four behavioral criteria for determining who fell into this group; those who reported: (1) quitting smoking less than one day after the brain injury; (2) their difficulty of quitting was less than three on a scale of one to seven; (3) that they did not smoke again after quitting; and (4) no urge to smoke since quitting.

The scientists observed that twelve of the 13 participants who quit smoking following damage to their insula met these criteria as in comparison to only four of 19 participants who quit smoking after sustaining damage to other brain areas.

"Participants with damage to the insula were overwhelmingly more likely to experience a true disruption of the urge to smoke, characterized by an almost immediate cessation of smoking with no reported struggles to maintain their abstinence," said Dr. Bechara. "We know that the insula plays a role in the desire to smoke by anticipating physical effects brought on by emotions such as those induced by environmental cues. Thus, damage to the insula could lead smokers to feel that their bodies have 'forgotten' the urge to smoke."

"Cigarette smoking is the most common preventable cause of illness and death in the modern world, and it is an addictive behavior," says Dr. Volkow. "While additional research is needed to replicate these findings, the current study suggests that damage to the insula can impact the conscious 'urge' to smoke, making it easier for smokers to quit and remain abstinent. Medications that target receptors within the insula may offer promise in developing more effective smoking cessation therapies in the future".


Posted by: Janet    Source




Did you know?
Preliminary research supported by the National Institute on Drug Abuse (NIDA), a component of the National Institutes of Health, has observed that some smokers with damage to a part of the brain called the insula may have their addiction to nicotine practically eliminated. The study is reported in the January 26, 2007 issue of the journal Science.

Medicineworld.org: When Smokers 'Forget' To Smoke

Asthma| Hypertension| Medicine Main| Diab french| Diabetes drug info| DruginfoFrench| Type2 diabetes| Create a dust free bedroom| Allergy statistics| Cancer terms| History of cancer| Imaging techniques| Cancer Main| Bladder cancer news| Cervix cancer news| Colon cancer news| Esophageal cancer news| Gastric cancer news| Health news| Lung cancer news| Breast cancer news| Ovarian cancer news| Cancer news|

Copyright statement
The contents of this web page are protected. Legal action may follow for reproduction of materials without permission.