Navigation Links
Brain Size May Signal Risk of Developing an Eating Disorder, CU School of Medicine Researchers Look at Brain Size and Eating Disorders
Date:8/28/2013

Aurora, CO (PRWEB) August 28, 2013

New research indicates that teens with anorexia nervosa have bigger brains than teens that do not have the eating disorder. That is according to a study by researchers at the University of Colorado’s School of Medicine that examined a group of adolescents with anorexia nervosa and a group without. They found that girls with anorexia nervosa had a larger insula, a part of the brain that is active when we taste food, and a larger orbitofrontal cortex, a part of the brain that tells a person when to stop eating.

Guido Frank, MD, assistant professor of psychiatry and neuroscience at CU School of Medicine, and his colleagues report that the bigger brain may be the reason people with anorexia are able to starve themselves. Similar results in children with anorexia nervosa and in adults who had recovered from the disease, raise the possibility that insula and orbitofrontal cortex brain size could predispose a person to develop eating disorders.

“While eating disorders are often triggered by the environment, there are most likely biological mechanisms that have to come together for an individual to develop an eating disorder such as anorexia nervosa,” Frank says.

The researchers recruited 19 adolescent girls with anorexia nervosa and 22 in a control group and used magnetic resonance imaging (MRI) to study brain volumes. Individuals with anorexia nervosa showed greater left orbitofrontal, right insular, and bilateral temporal cortex gray matter compared to the control group. In individuals with anorexia nervosa, orbitofrontal gray matter volume related negatively with sweet tastes. An additional comparison of this study group with adults with anorexia nervosa and a healthy control group supported greater orbitofrontal cortex and insula volumes in the disorder across this age group as well.

The medial orbitofrontal cortex has been associated with signaling when we feel satiated by a certain type of food (so called “sensory specific satiety”). This study suggests that larger volume in this brain area could be a trait across eating disorders that promotes these individuals to stop eating faster than in healthy individuals, before eating enough.

The right insula is a region that processes taste, as well as integrates body perception and this could contribute to the perception of being fat despite being underweight.

This study is complementary to another that found adults with anorexia and individuals who had recovered from this illness also had differences in brain size, previously published in the American Journal of Psychiatry, 2013.

This study was published in the Journal of the American Academy of Child and Adolescent Psychiatry, July 22, 2013.

Faculty at the University of Colorado School of Medicine work to advance science and improve care. These faculty members include physicians, educators and scientists at University of Colorado Hospital, Children’s Hospital Colorado, Denver Health, National Jewish Health, and the Denver Veterans Affairs Medical Center. Degrees offered by the CU School of Medicine include doctor of medicine, doctor of physical therapy, and masters of physician assistant studies. The School is located on the University of Colorado’s Anschutz Medical Campus, one of four campuses in the University of Colorado system. For additional news and information, please visit our online newsroom.

Read the full story at http://www.prweb.com/releases/2013/8/prweb11070455.htm.


'/>"/>
Source: PRWeb
Copyright©2012 Vocus, Inc.
All rights reserved

Related medicine news :

1. Study Suggests Vaccine May Help Kids With Brain Cancer
2. Epilepsy Leads to More Brain Abnormalities Over Time
3. UCLA Brain Injury Research Center gets NCAA funding for research on sports concussions
4. Why is traumatic brain injury increasing among the elderly?
5. Brain Falters Near End of Life, but Games, Puzzles Might Slow Decline
6. Dental X-Rays May Be Linked to Benign Brain Tumors
7. Nonsurgical Method to Measure Brain Pressure Shows Promise
8. Researchers Map Brain Regions Linked to Intelligence
9. Football-related catastrophic brain injuries on the rise
10. Brain Tumor Vaccine Shows Promise in Early Trial
11. Brain Surgery Might Ease Tough-to-Treat OCD
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:5/3/2016)... Monica, CA (PRWEB) , ... May 03, 2016 , ... ... the highest quality medical providers to build the leading network of doctors and therapists ... Eric Nepomnaschy, D.C., founder of the distinguished Bay Chiropractic and Rehabilitation in ...
(Date:5/3/2016)... ... May 03, 2016 , ... SELEX (systematic evolution ... from a random library of sequences depending on their attraction for a target ... SELEX selection is commonly performed using filters, panning, or affinity chromatography separations. However, ...
(Date:5/3/2016)... FL (PRWEB) , ... May 03, 2016 , ... ... leading innovative specialty pharmacies, will be represented at the 2016 Asembia Specialty ... Vegas. The Asembia Summit is the largest U.S. health care conference for the ...
(Date:5/3/2016)... ... May 03, 2016 , ... Boston Children’s Hospital today announced its ... situations or practice tricky or rare procedures in an environment that looks and feels ... is also available to inventors and “hackers” to develop and test new devices or ...
(Date:5/3/2016)... ... May 03, 2016 , ... ... announces Benefits Alliance Insurance Services as the latest addition to its elite stable ... comprised of Partners Wayne Blasman, David Styles, and Paul Vincent. The Firm is ...
Breaking Medicine News(10 mins):
(Date:4/29/2016)... April 29, 2016  In the next ten ... shift from systems dependent on CRTs monitors to those ... modality CRT Medical monitors and will automatically sync ... host of foreseeable benefits to this technological advancement, ... modalities have to be replaced in order to ...
(Date:4/29/2016)... 29, 2016 Glycotope GmbH, a ... announces the appointment of Dr. Alfredo Zurlo ... an oncologist with many years clinical experience and a ... His last role was at Mologen AG where he ... Board. Previously Dr. Zurlo held various positions at F ...
(Date:4/28/2016)... April 28, 2016 Research and ... Plastic Surgery Products Market 2016-2020" report to their ... , The global plastic surgery products market ... during the period 2016-2020. , ,The growing adoption of ... the growth of the market. Lasers are used to ...
Breaking Medicine Technology: