dismiss

Be DOTmed’s Guest at FIME 2014 in Miami Beach Aug 6th-8th -- Get your Free Pass here

SEARCH
Current Location:
>
> This Story


Log in or Register to rate this News Story
Forward Printable StoryPrint Send us your Comments

Never Miss a Story

Sign up for email alerts

 

More Industry Headlines

Genomic test personalizes prostate cancer treatment Predicts who benefits from radiotherapy

Global surgical equipment market will hit $12.1 billion Electrosurgical and robotic devices spur growth

Surgery better than endoscopy for some early esophageal cancers Leads to better outcomes

Medtronic acquires Visualase Expands neuroscience offerings

No anxiety over false positive CT lung cancer results May influence CMS's coverage decision

FDA approves Philips' mobile ultrasound Product for the globe

ACR calls for tomo coverage CMS will decide in October

Dunlee to introduce new tube at RSNA Company confirms continued commitment to tube manufacturing

Radiotherapy steps outside of cancer treatment Shows promise for heart disease

Setting the Standard: XR-29 and the Importance of CT Dose Optimization Next step to reducing dose

Right hemisphere thinning

Thinning of Right Hemisphere Is Implicated in Depression

by Lynn Shapiro , Writer
Findings from one of the largest-ever imaging studies of depression indicate that a structural difference in the brain--a thinning of the right hemisphere--appears to be linked to a higher risk for depression, according to new research at Columbia University Medical Center and the New York State Psychiatric Institute.

Published in the upcoming online edition of the Proceedings of the National Academy of Sciences, researchers found that people at high risk of developing depression had a 28 percent thinning of the right cortex, the brain's outermost surface, compared to people with no known risk.

Story Continues Below Advertisement

VIP Medical, Inc. - A Reputation For Quality!!! Visit www.vipmedinc.com

Our primary focus is International wholesale distribution of Pre-owned Medical Equipment. We specialize in Respiratory Equipment, primarily adult and infant ventilators. All major OEMs supported. Call 703-589-0369. DOTmed Certified



The cerebral cortex is the part of the brain that governs planning, reasoning and mood. Thinning of the cortex may hinder these functions, researchers say.
"If you have thinning in this portion of the brain, it interferes with the processing of emotional stimuli," Dr. Peterson said. "We think that's what makes [people] vulnerable to developing anxiety and depression--it essentially isolates them in an emotional world."

The drastic reduction surprised researchers, which they say is on par with the loss of brain matter typically observed in persons with Alzheimer's disease and schizophrenia. "The difference was so great that at first we almost didn't believe it. But we checked and re-checked all of our data, and we looked for all possible alternative explanations, and still the difference was there," said Dr. Bradley Peterson, director of Child & Adolescent Psychiatry and director of MRI Research in the Department of Psychiatry at Columbia University Medical Center and the New York State Psychiatric Institute, and lead author of the study.

Additional tests measured each person's level of inattention to and memory for such cues. The less brain material patients had in the right cortex, the worse they performed on the attention and memory tests.

The study compared the thickness of the cortex by imaging the brains of 131 subjects, aged 6 to 54 years old, with and without a family history of depression. Structural differences were observed in the biological offspring of depressed subjects but were not found in the biological offspring of those who were not depressed.

One of the goals of the study was to determine whether structural abnormalities in the brain predispose people to depression or are a cause of the illness. Dr. Peterson said, "Because previous biological studies only focused on a relatively small number of individuals who already suffered from depression, their findings were unable to tease out whether those differences represented the causes of depressive illness, or a consequence."

Continue reading Thinning of Right Hemisphere Is Implicated in Depression...
  Pages: 1 - 2 >>

Related:


Interested in Medical Industry News? Subscribe to DOTmed's weekly news email and always be informed. Click here, it takes just 30 seconds.
Access and use of this site is subject to the terms and conditions of our LEGAL NOTICE & PRIVACY NOTICE
Property of and Proprietary to DOTmed.com, Inc. Copyright ©2001-2014 DOTmed.com, Inc.
ALL RIGHTS RESERVED