Navigation Links
New brain research suggests eating disorders impact brain function
Date:7/11/2011

AURORA, Colo. (July 11, 2011) Bulimia nervosa is a severe eating disorder associated with episodic binge eating followed by extreme behaviors to avoid weight gain such as self-induced vomiting, use of laxatives or excessive exercise. It is poorly understood how brain function may be involved in bulimia. A new study led by Guido Frank, MD, assistant professor, Departments of Psychiatry and Neuroscience and Director, Developmental Brain Research Program at the University of Colorado Anschutz Medical Campus, studied the brain response to a dopamine related reward-learning task in bulimic and healthy women. Dopamine is an important brain chemical or neurotransmitter that helps regulate behavior such as learning and motivation. Frank found that bulimic women had weakened response in brain regions that are part of the reward circuitry. This response was related to the frequency of binge/purge episodes. Overeating and purging episodes thus could cause such a weaker response and set off a vicious cycle of altered brain function. These findings are important for several reasons. First, they directly implicate the brain reward system and related dopamine function in this disorder. Second, bulimic behavior appears to directly affect brain reward function and it is uncertain whether such alterations return to normal with recovery or not. Third, brain dopamine could be a treatment target in bulimia nervosa using specific medication that targets those abnormalities.

"This is the first study that suggests that brain dopamine related reward circuitry, pathways that modulate our drive to eat, may have a role in bulimia nervosa. We found reduced activation in this network in the bulimic women, and the more often an individual had binge/purge episodes the less responsive was their brain. That suggests that the eating disorder behavior directly affects brain function. These findings are important since the brain dopamine neurotransmitter system could be an important treatment target for bulimia nervosa," said Frank.


'/>"/>

Contact: Jackie Brinkman
jackie.brinkman@ucdenver.edu
303-724-1525
University of Colorado Denver
Source:Eurekalert

Related medicine news :

1. Gadgets not related to teenagers brain pain
2. Dementia Rates Escalate as Brain Capacity Diminishes with Age
3. Researchers discover new way to kill pediatric brain tumors
4. Scientists Pinpoint Area of Brain That Fears Losing Money
5. Physical Changes in Brain Linked to Altered Spirituality
6. Pro Athletes Brains React at Olympic Speed
7. Neuroscientists reveal new links that regulate brain electrical activity
8. Brain Scan Shows What Beauty is Worth
9. Study supports alternative anti-seizure medication following acute brain injury
10. Exercise helps protect brain of multiple sclerosis patients
11. Pittsburgh Neurosurgeons Explore Use of Drug that Illuminates Brain Tumor Cells To Guide Surgery
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:4/29/2017)... ... April 29, 2017 , ... Sterling Global Products ... fine retailers selling biodegradable, hanging flushable wipes dispensers and/or 42 count refill packs ... in San Antonio, Texas, operates more than 350 stores throughout Texas and expanding ...
(Date:4/28/2017)... ... April 28, 2017 , ... Accreditation Commission ... Home Care Association of America (HCAOA). This agreement allows HCAOA members to receive ... well as discounts on Accreditation University (AU) educational resources that help prepare HCAOA ...
(Date:4/28/2017)... ... April 28, 2017 , ... Getting enough sleep affects much more than energy – ... just 19 hours without sleep can compromise motor reaction time, which can increase the risk ... Insurance is sharing the following tips from the NSF to help you sleep better and ...
(Date:4/28/2017)... ... 28, 2017 , ... Datta Endoscopic Back Surgery and Pain ... endoscopic practice under Dr. Datta. Patel is a Board Certified Anesthesiologist, with additional ... eDiscSculpt Technique created and used by Datta Endoscopic is unlike traditional back surgery ...
(Date:4/28/2017)... ... 28, 2017 , ... People are starting to accept that hearing aids can ... have the stigma it had when great-grandpa wore his hearing aids years ago,” said ... NALA North American Speaker Series (NASS) segment. “He probably wore an iPod-size ...
Breaking Medicine News(10 mins):
(Date:4/19/2017)... April 19, 2017 The Global Effective ... to 2022 report has covered and analysed the potential of ... on market size, shares and growth factors. The report identifies ... and opportunities in the global market. ... Browse 152 Tables and Figures, 6 Major Company ...
(Date:4/19/2017)... , April 19, 2017 ... stimulate an immune response in pets such as ... products are of various types such as Attenuated ... Toxoid Vaccines, DNA Vaccines and Recombinant Vaccines. Attenuated ... as virus or bacteria, which have been weakend ...
(Date:4/19/2017)... 2017  Novartis today announced the publication of ... and Blood Institute (NHLBI) of the National Institutes ... with treatment-naïve severe aplastic anemia (SAA) achieved complete ... at the initiation of and concurrently with standard ... sequential treatment groups, or cohorts. Cohort 3 added ...
Breaking Medicine Technology: