PRESS-NEWS.org - Press Release Distribution
PRESS RELEASES DISTRIBUTION

Potential new target for smoking cessation without weight gain

NIH-funded study identifies brain pathway in rodents that could be target of new treatments for smoking and weight control

2011-06-10
(Press-News.org) A new study uncovers a brain mechanism that could be targeted for new medications designed to help people quit smoking without gaining weight. This research, funded by the National Institute on Drug Abuse (NIDA), part of the National Institutes of Health, shows that a specific subclass of brain nicotinic receptor is involved in nicotine's ability to reduce food intake in rodents. Prior research shows that the average weight gain after smoking is less than 10 pounds, but fear of weight gain can discourage some people who would like to quit.

In the study, to be published in the June 10 issue of Science, researchers found that a nicotine-like drug, cytisine, specifically activated nicotinic receptors in the hypothalamus - a brain center that controls feeding. This resulted in the activation of a circuit that reduced food intake and body fat in a mouse model. This effect was very specific, since a drug that prevented cytisine from binding to its hypothalamic receptors blocked the reduction in food intake.

Through the use of tobacco, nicotine is one of the most heavily used addictive drugs and the leading preventable cause of disease, disability, and death in the United States. According to the Centers for Disease Control and Prevention, cigarette smoking results in more than 440,000 preventable deaths each year – about 1 in 5 U.S. deaths overall. Despite the well-documented health costs of smoking, many smokers report great difficulty quitting.

"These mouse models allow us to explore the mechanisms through which nicotine acts in the brain to reduce food intake," said Dr. Marina Picciotto, of Yale University, New Haven, Conn. and senior author for the article. "We found that nicotine reduced eating and body fat through receptors implicated in nicotine aversion and withdrawal rather than reward and reinforcement."

"These results indicate that medications that specifically target this pathway could alleviate nicotine withdrawal as well as reduce the risk of overeating during smoking cessation," said NIDA Director Dr. Nora D. Volkow. "Although more research is warranted, such a highly selective compound might be more effective than drugs that act on more than one type of nicotinic receptor."

###

For information on tips to maintain a healthy weight while quitting smoking go to Forever Free: Smoking and Weight, a publication of the National Cancer Institute. For additional information on resources to help quit smoking, go to www.nida.nih.gov/DrugPages/Nicotine.html and smokefree.gov.

The study can be found online at: www.sciencemag.org/.

The National Institute on Drug Abuse is a component of the National Institutes of Health, U.S. Department of Health and Human Services. NIDA supports most of the world's research on the health aspects of drug abuse and addiction. The Institute carries out a large variety of programs to inform policy and improve practice. Fact sheets on the health effects of drugs of abuse and information on NIDA research and other activities can be found on the NIDA home page at www.drugabuse.gov. To order publications in English or Spanish, call NIDA's new DrugPubs research dissemination center at 1-877-NIDA-NIH or 240-645-0228 (TDD) or fax or email requests to 240-645-0227 or drugpubs@nida.nih.gov. Online ordering is available at http://drugpubs.drugabuse.gov. NIDA's new media guide can be found at http://drugabuse.gov/mediaguide/.

About the National Institutes of Health (NIH): NIH, the nation's medical research agency, includes 27 Institutes and Centers and is a component of the U.S. Department of Health and Human Services. NIH is the primary federal agency conducting and supporting basic, clinical, and translational medical research, and is investigating the causes, treatments, and cures for both common and rare diseases. For more information about NIH and its programs, visit www.nih.gov.

END



ELSE PRESS RELEASES FROM THIS DATE:

Why animals don't have infrared vision

2011-06-10
On rare occasion, the light-sensing photoreceptor cells in the eye misfire and signal to the brain as if they have captured photons, when in reality they haven't. For years this phenomenon remained a mystery. Reporting in the June 10 issue of Science, neuroscientists at the Johns Hopkins University School of Medicine have discovered that a light-capturing pigment molecule in photoreceptors can be triggered by heat, as well, giving rise to these false alarms. "A photon, the unit of light, is just energy, which, when captured by the pigment rhodopsin, most of the time causes ...

Unprecedented international meeting releases preliminary vision for our energy future

2011-06-10
Waterloo, Ontario, Canada, June 9, 2011 – A unique, international summit of scientists, engineers, entrepreneurs and future leaders from around the world has concluded with the release of the Equinox Summit: Energy 2030 Communiqué. The event's preliminary report includes visionary proposals for transformative action to reduce the electricity-related emissions that drive global warming. The full Equinox Communiqué is now available at: http://wgsi.org/files/EquinoxCommunique_June9_2011.pdf The Communiqué identifies a group of technological approaches and implementation ...

A new way to make lighter, stronger steel -- in a flash

2011-06-10
COLUMBUS, Ohio – A Detroit entrepreneur surprised university engineers here recently, when he invented a heat-treatment that makes steel 7 percent stronger than any steel on record – in less than 10 seconds. In fact, the steel, now trademarked as Flash Bainite, has tested stronger and more shock-absorbing than the most common titanium alloys used by industry. Now the entrepreneur is working with researchers at Ohio State University to better understand the science behind the new treatment, called flash processing. What they've discovered may hold the key to making ...

New imaging tech promising for diagnosing cardiovascular disease, diabetes

New imaging tech promising for diagnosing cardiovascular disease, diabetes
2011-06-10
WEST LAFAYETTE, Ind. - Researchers have developed a new type of imaging technology to diagnose cardiovascular disease and other disorders by measuring ultrasound signals from molecules exposed to a fast-pulsing laser. The new method could be used to take precise three-dimensional images of plaques lining arteries, said Ji-Xin Cheng, an associate professor of biomedical engineering and chemistry at Purdue University. Other imaging methods that provide molecular information are unable to penetrate tissue deep enough to reveal the three-dimensional structure of the plaques, ...

Ideal Casino Guide with a New Fresh Look

2011-06-10
Recently EiDealCasino.com has made some improvements to give their web site a fresh new look, which makes easier and more fun to surf. EiDealCasino.com is a casino guide that assists Netherlands casino players to find top sites offering quality games that accept payments using the method iDeal - ideal casino guide. Eidealcasino.com aims to make locating top online casinos, effortless. Their goal is to provide the best up-to-date information for Netherlands with various internet casinos. The website has gathered extensive information on the most reputable and popular ...

NASA catches system 92W become fifth NW Pacific tropical depression

NASA catches system 92W become fifth NW Pacific tropical depression
2011-06-10
The low pressure system that has been bringing rainfall to the northwestern Philippines has strengthened into the fifth tropical depression of the Northwest Pacific Ocean's hurricane season. Tropical Depression 05W (TD05W) also known as Dodong in the Philippines was caught by infrared NASA satellite imagery on June 8 at 1741 UTC (1:41 p.m. EDT). The infrared data showed some powerful thunderstorms with very cold cloud top temperatures near the threshold of AIRS data of -63 Fahrenheit and -52 Celsius. That indicates the coldest, strongest thunderstorms within the tropical ...

Advanced New eGreetings Website Launches

2011-06-10
An innovative new eGreetings website, www.iAttachments.com, officially opens for business today. For a $20 annual fee subscribers can send an unlimited number of greetings over the Internet. The distinctiveness of the service is 1) a short film with a song or a lyric video that tells a story appropriate for the greeting occasion, and 2) the core greeting is customized by the sender with an animated "envelope" preceding the film and an animated digital closing personalized with a message to the recipient follows the film. Subscribers may also use the site's licensed ...

'Super varieties' of wheat expected to boost yields and block deadly threat to food security

2011-06-10
ST. PAUL, MN—Five years after the launch of a global effort to protect the world's most important food crop from variants of Ug99, a new and deadly form of wheat rust, scientists say they are close to producing super varieties of wheat that will resist the potent pathogen, while boosting yields by as much as 15 percent. According to research to be presented at a global wheat rust symposium in Minneapolis starting June 13, scientists report that variants of the Ug99 strain of stem rust are becoming increasingly virulent and are being carried by wind beyond the handful of ...

Rebuilding The Amazon Rainforest One Tree at a Time

Rebuilding The Amazon Rainforest One Tree at a Time
2011-06-10
What is Amazing Forest? Yes, the Amazon rainforest is being cut down as you read this. 17% is already gone. The world's lungs - as it's referred to - is decreasing in size. Yes, everyone knows this. But what can we really do about it? The Amazing Forest is a chance to do something right from where you are, sitting in your chair, a few clicks and US$60 away. Amazing Forest is the venue where people from all over the world are combining their efforts into one single strain to restore the Amazon rainforest to its original state. We sell trees. Not trees to be delivered ...

NASA's infrared image of major Hurricane Adrian reveals its stormy life's blood

NASAs infrared image of major Hurricane Adrian reveals its stormy lifes blood
2011-06-10
Strong thunderstorms are the life's blood of tropical cyclones, and infrared and radar satellite data from NASA today confirms that the eastern Pacific Ocean's first hurricane has plenty of them and they're over 9 miles high. Adrian exploded in growth overnight from a tropical storm on June 8 to a major hurricane today. NASA's Aqua satellite flew over Hurricane Adrian this morning at 8:29 UTC (1:59 a.m. EDT), and the Atmospheric Infrared Sounder instrument took an infrared snapshot of the storm's many strong thunderstorms and warm ocean water below. The infrared data ...

LAST 30 PRESS RELEASES:

Study finds one-year change on CT scans linked to future outcomes in fibrotic lung disease

Discovery of a novel intracellular trafficking pathway in plant cells

New tool helps forecast volcano slope collapses and tsunamis

Molecular coating cleans up noisy quantum light

From Parkinson's to rare diseases, discovered a key switch for cellular health

Tiny sugars in the brain disrupt emotional circuits, fueling depression

Mini-organs reveal how the cervix defends itself

Africa, climate, and food: How to feed a continent without increasing its carbon footprint

Researchers demonstrates substrate design principles for scalable superconducting quantum materials

How better software choices could cut US health care costs

Concussion history in NCAA athletes yields mixed health outcomes

Counting plastic reveals hidden waste and sparks action

Warming oceans may pose a serious threat to American lobsters

Deaths from drug-induced unintentional injury rise across the US

In car crashes with pedestrians, age and zip code may predict extent of traumatic injuries

AI optimizes evacuation, diagnosis, and treatment of wounded soldiers in Ukraine

Mastectomy linked to worsened sexual health, body image after surgery

Drop in credit score after cancer diagnosis linked to increased mortality, study shows

Use of weight loss drugs before bariatric surgery has soared in recent years, study finds

EMS call times in rural areas take at least 20 minutes longer than national average

Rectal bleeding in young adults linked to 8.5 times higher risk of colorectal cancer

Hospital closures disproportionately affect socioeconomically disadvantaged communities

Global disparities in premature mortality

Keck Medicine of USC expands world-class care in Pasadena

Untreated depression makes surgical outcomes worse in cancer patients

Standardizing frailty indexes to improve preclinical aging research

Hanbat National University researchers present new technique to boost solid oxide fuel cell performance

Even short school breaks affect student learning unevenly across socioeconomic backgrounds

When words matter: Language and culture shape early childhood outcomes

UBC enzyme technology clears first human test toward universal donor organs for transplantation

[Press-News.org] Potential new target for smoking cessation without weight gain
NIH-funded study identifies brain pathway in rodents that could be target of new treatments for smoking and weight control