Navigation Links
Researchers discover method to objectively identify PTSD
Date:1/20/2010

MINNEAPOLIS / ST. PAUL (January 20, 2010) Researchers at the University of Minnesota and Minneapolis VA Medical Center have identified a biological marker in the brains of those exhibiting post-traumatic stress disorder (PTSD).

A group of 74 United States veterans were involved in the study, which for the first time objectively diagnoses PTSD using magnetoencephalography (MEG), a non-invasive measurement of magnetic fields in the brain. It's something conventional brain scans such as an X-ray, CT, or MRI have failed to do.

The ability to objectively diagnose PTSD is the first step towards helping those afflicted with this severe anxiety disorder. PTSD often stems from war, but also can be a result of exposure to any psychologically traumatic event. The disorder can manifest itself in flashbacks, recurring nightmares, anger, or hypervigilance.

With more than 90 percent accuracy, researchers were able to differentiate PTSD patients from healthy control subjects (250 people with clean mental health) using the MEG. All behavior and cognition in the brain involves networks of nerves continuously interacting these interactions occur on a millisecond by millisecond basis. The MEG has 248 sensors that record the interactions in the brain on a millisecond by millisecond basis, much faster than current methods of evaluation such as the functional magnetic resonance imaging (fMRI), which takes seconds to record.

The measurements recorded by the MEG represent the workings of tens of thousands of brain cells. This recording method allowed researchers to locate unique biomarkers in the brains of patients exhibiting PTSD.

The findings are published January 20 in the Journal of Neural Engineering and led by Apostolos Georgopoulos, M.D., Ph.D., and Brian Engdahl., Ph.D. both members of the Brain Sciences Center at the Minneapolis VA Medical Center and University of Minnesota.

"These findings document robust differences in brain function between the PTSD and control groups that can be used for differential diagnosis and which possess the potential for assessing and monitoring disease progression and effects of therapy," Georgopoulos said.

Besides diagnosing those with PTSD, the researchers also are able to judge the severity of how much they are suffering, which means the MEG may be able to be used to gauge the how badly patients are impacted by other brain disorders.

It is likely that the study will be replicated and administered to a larger group to assure the accuracy of its results.

This work, specifically on detecting post-traumatic stress disorder, follows success in detecting other brain diseases, such as Alzheimer's and multiple sclerosis, using MEG, as reported in September 2007.


'/>"/>

Contact: Nick Hanson
hans2853@umn.edu
612-624-2449
University of Minnesota
Source:Eurekalert

Related medicine news :

1. Researchers find a treatment for deadly brain tumor
2. Researchers find new insights into inherited retinal disease
3. Pitt researchers raise concern over frequency of surveillance colonoscopy
4. Stress triggers tumor formation, Yale researchers find
5. Johns Hopkins researchers say vaccine appears to mop up leukemia cells Gleevec leaves behind
6. St. Johns wort not helpful treatment for irritable bowel syndrome, Mayo Clinic researchers say
7. Young hunters most likely to be injured using tree stands, say UAB researchers
8. Researchers find clues to why some continue to eat when full
9. Researchers find new patterns in H1N1 deaths
10. Researchers discover gene therapy to prevent progression of emphysema
11. Researchers at the John Theurer Cancer Center Present Cutting-Edge Research Results at this Years American Society of Hematology Annual Meeting
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:12/2/2016)... (PRWEB) , ... December 02, 2016 , ... ... hot meals to needy individuals and families from eight different sites throughout Miami-Dade ... Thanksgiving Day. Over 1,000 volunteers worked very hard on Thanksgiving morning by putting ...
(Date:12/2/2016)... Miami, FL (PRWEB) , ... December 02, 2016 , ... ... they are winners of $1,000 each from the National Family Partnership and the Drug ... winning families who decorated their homes and the 10 winning schools who decorated their ...
(Date:11/30/2016)... ... November 30, 2016 , ... "I hate when the mixture ... brushing my teeth," said an inventor from Bridgewater, N.J. "I thought that there had ... handy device." , He developed the patent-pending DEFLECTOR to prevent saliva and toothpaste from ...
(Date:11/30/2016)... ... November 30, 2016 , ... ... treatment has announced the opening of a new residential mental health treatment program ... mental health issues such as severe anxiety, depression, bi-polar disorder, and other related ...
(Date:11/30/2016)... ... November 30, 2016 , ... The Clinical Data Interchange ... FDA Binding Guidance goes into effect next month. Sponsors whose studies start after ... Data Standards Catalog. The current FDA Data Standards Catalog specifies the use of ...
Breaking Medicine News(10 mins):
(Date:12/2/2016)... Research and Markets has announced the addition of ... Markets and Companies" to their offering. ... , , ... The market value of drug delivery technologies and the anticancer drugs ... according to organs involved and the types of cancer as well ...
(Date:12/2/2016)... -- bioLytical Laboratories (das "Unternehmen"), ein Weltführer bei schnellen Tests ...  in einer Version mit geringeren Kosten einzuführen.  ... ... New: INSTI Self Test! (PRNewsFoto/bioLytical Laboratories) ...      (Photo: http://photos.prnewswire.com/prnh/20161201/444833 ) Der ...
(Date:11/30/2016)... Research and Markets has announced the addition of the ... their offering. ... Detachable coil embolization is a minimally invasive method ... embolization treatment of cerebral aneurysms is less invasive and requires less recovery ... wall of an artery in the brain. This area bulges in the ...
Breaking Medicine Technology: