Navigation Links
Smoking Withdrawal Shows Up in Brain Mood Centers
Date:8/3/2011

WEDNESDAY, Aug. 3 (HealthDay News) -- Changes in brain areas that control mood may explain why some heavy smokers become depressed after they quit smoking, which increases their risk of resuming smoking.

That's the finding of Canadian researchers who conducted PET brain scans on 24 nonsmokers, 12 moderate smokers (15 to 24 cigarettes a day) and 12 heavy smokers (25 or more cigarettes a day).

The scans revealed that after quitting smoking, heavy smokers had an elevation of the enzyme monoamine oxidase A (MAO-A) in regions of the brain that regulate mood, such as the prefrontal cortex (24 percent increase) and the anterior cingulate cortex (33 percent increase).

Previous research has linked elevated MAO-A with depression.

Researchers did not find increased levels of MAO-A, which metabolizes mood-enhancing chemicals, in nonsmokers or moderate smokers after they kicked the habit.

The heavy smokers also reported experiencing a depressed mood after they quit smoking.

The study appears in the August issue of the journal Archives of General Psychiatry.

"Understanding the neurobiology of heavy cigarette smoking is important because those who smoke heavily are much more likely to have major depressive disorder and to experience medical complications resulting from cigarette smoking," wrote Ingrid Bacher and colleagues at the Centre for Addiction and Mental Health in Toronto in a journal news release.

They recommended clinical trials to test the effects of MAO-A- inhibiting drugs in heavy smokers immediately after they quit smoking.

More information

The American Cancer Society offers a guide to quitting smoking.

-- Robert Preidt

SOURCE: JAMA/Archives journals, news release, Aug. 1, 2011
'/>"/>

Copyright©2010 ScoutNews,LLC.
All rights reserved

Page: 1 2

Related medicine news :

1. The effects of smoking and alcohol use on risk of upper aero-digestive cancers
2. Licence to smoke: Taking vitamin pills may undermine motivation to reduce smoking
3. Smoking, Diabetes, Obesity May Shrink Your Brain
4. Smoking After Heart Attack Raises Risk of Dying
5. First-ever review finds smoking causes serious birth defects
6. Talking to Teens May Help Them Cut Back on Pot Smoking
7. Stop-Smoking Drug Chantix Ups Risk of Heart Problems: Study
8. Varenicline for smoking cessation linked to increased risk of serious harmful cardiac events
9. A Childs Surgery May Prompt Parents to Try to Quit Smoking
10. Smoking During Pregnancy May Predispose Kids to Heart Trouble
11. Smoking may increase risk of prostate cancer recurrence, death
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:11/23/2014)... 2014 Locks-Magnetic.com, a notable magnetic locks ... all the new products are available at low rates ... is proud of the new emergency doors. The emergency ... customers can choose from several colors. All of the ... emergency door release is not as easy as many ...
(Date:11/23/2014)... November 23, 2014 AngelWeddingDress.com ... a new selection of beach wedding dresses. “If you ... prices, visit AngelWeddingDress.com as soon as possible. Here you ... The sales manager says. , Holding a big marriage ... And choosing a beautiful beach wedding dress is uppermost ...
(Date:11/23/2014)... OH (PRWEB) November 23, 2014 Wright ... on behalf of Ohio and West Virginia residents who ... other health disorders due to drinking C8 contaminated ... In Parkersburg, West Virginia. According to the C8 complaints, ... they either worked or lived in at least one ...
(Date:11/22/2014)... 2014 Cancer researchers in New York ... intercellular communication tunnels and the growth and spread of ... on the Surviving Mesothelioma website. , Doctors ... of Minnesota have just released their study on tunneling ... between cells. They found that mesothelioma cells ...
(Date:11/22/2014)... BambooFlooringChina.com is a famous brand in the bamboo flooring ... of bamboo mats ; the new models are offered ... , According to the sales manager of BambooFlooringChina.com, Bamboo is ... renewable resource. Their bamboo mats are 100% made from natural ... natural bamboo with caramel bamboo strips. , “Bamboo ...
Breaking Medicine News(10 mins):Health News:Beach Wedding Dresses Added to Outstanding Online Dress Company AngelWeddingDress.com 2Health News:40 C8 Lawsuit Claims Filed By Wright & Schulte LLC Alleged Serious Illness Due To C8 Contaminated Water In Ohio And West Virginia 2Health News:40 C8 Lawsuit Claims Filed By Wright & Schulte LLC Alleged Serious Illness Due To C8 Contaminated Water In Ohio And West Virginia 3Health News:40 C8 Lawsuit Claims Filed By Wright & Schulte LLC Alleged Serious Illness Due To C8 Contaminated Water In Ohio And West Virginia 4Health News:Study Links Cellular ‘Tunnels’ to Mesothelioma Proliferation, According to Surviving Mesothelioma 2Health News:Trendy Bamboo Mats Online Now By BambooFlooringChina.com 2
... provides a simple solution to the learning challenges faced ... reading, writing, math, comprehension, verbalization, music and sports. ... on the use of 26 specific and integrative movements ... break through cognitive and sensory motor barriers that make ...
... available in French . , Montreal, March 23, ... immune system to combat the elusive virus responsible for cold ... advance online edition of Nature Immunology , a group ... with American colleagues, have identified a cellular process that seeks ...
... Existing Strong Position in Healthcare Investor and Media ... YORK, March 23 The Ruth Group (TRG), ... dedicated to healthcare and technology, announced today the ... healthcare marketing. The initiative leverages TRG,s strong ...
... HARRISBURG, Pa., March 23 State Health Secretary Everette ... of tuberculosis, or TB, and the importance of efforts ... 2008, we saw an increase in the number of ... resistant to medication, which makes the disease more difficult ...
... Ill., March 23 ACell, Inc. and ... signed an exclusive marketing and distribution agreement for ACell,s ... manufacture and Medline will market and distribute the products. ... bioscaffold derived from porcine tissue. When MatriStem is ...
... Blanco of San Diego, CA, will travel to ... 2009 to meet with congressional leaders and gain their ... toward a cure for epilepsy.Blanco, 7, is one of ... Kids Speak Up! , a national program coordinated ...
Cached Medicine News:Health News:Learning Empowered by Movement; Brain Gym Exercises Wake Up Brain and Body 2Health News:Herpes: Scientists find cellular process that fights virus 2Health News:The Ruth Group Launches Healthcare Marketing Communications Unit 2Health News:The Ruth Group Launches Healthcare Marketing Communications Unit 3Health News:Pennsylvania Sees Increase in Tuberculosis, Emphasizing Need for Awareness 2Health News:ACell and Medline Announce Exclusive Marketing and Distribution Agreement for MatriStem(TM) Proprietary Bioscaffold for Wound Care 2Health News:California Youth Shares Epilepsy Message on Capitol Hill 2
(Date:11/21/2014)... Nov. 21, 2014  The University of Maryland,s A. ... ceremonial groundbreaking of the new A. James Clark Hall ... building will cultivate transformative new engineering and biomedical technologies ... place at 10:00 a.m. on November 21 at the ... Parking Lot, adjacent to the Jeong H. Kim Engineering ...
(Date:11/21/2014)... , Nov. 21, 2014   Rock Creek ... that the Company is scheduled to present at the ... Francisco, CA on January 12-14, 2015. ... and CEO of Rock Creek Pharmaceuticals, will present preclinical ... cholinergic agonist which exhibits anti-inflammatory pharmacological characteristics. Dr. Mullan ...
(Date:11/21/2014)... , Nov. 21, 2014  PTC Therapeutics, Inc. (NASDAQ: ... 2014 Legend of Technology Award for Vision, Innovation, and Leadership ... Chief Executive Officer. This award recognizes an individual who has ... New Jersey for several decades. ... Award," stated Stuart Peltz , Ph.D., CEO of PTC ...
Breaking Medicine Technology:University of Maryland Breaks Ground for A. James Clark Hall 2University of Maryland Breaks Ground for A. James Clark Hall 3University of Maryland Breaks Ground for A. James Clark Hall 4Rock Creek Pharmaceuticals to Present at the Biotech Showcase 2015 2Rock Creek Pharmaceuticals to Present at the Biotech Showcase 2015 3Rock Creek Pharmaceuticals to Present at the Biotech Showcase 2015 4PTC Therapeutics Announces CEO, Dr. Stuart Peltz Recipient of The New Jersey Technology Council's 2014 Legend of Technology Award 2PTC Therapeutics Announces CEO, Dr. Stuart Peltz Recipient of The New Jersey Technology Council's 2014 Legend of Technology Award 3
... March 7, 2011 IRIDEX Corporation (Nasdaq: IRIX ... investor presentation at the ROTH 23rd Annual OC Growth Stock ...  The conference is being held March 13-16 at the Ritz ... presentation will be accessible by live webcast on the Investor ...
... global healthcare company and biopharmaceutical manufacturer based in Barcelona, ... Advisory Council in Transfusion Medicine drawing on the expertise ... globe.  The role of the Expert Advisory Council is ... transfusion medicine research and development activities. ...
Cached Medicine Technology:Grifols Establishes Expert Advisory Council in Transfusion Medicine 2Grifols Establishes Expert Advisory Council in Transfusion Medicine 3
Desmarres Infant Retractor...
Size 4 - 2.25 mm...
... the features of phaco systems costing much ... maintenance. Small, light and tough enough to ... cost reusable tubing kit can be auto-claved ... a price objection to purchasing a modern ...
Compact ultrasonic phacoemulsification system....
Medicine Products: