Navigation Links
Does stress damage the brain?
Date:3/18/2008

Philadelphia, PA, March 18, 2008 Individuals who experience military combat obviously endure extreme stress, and this exposure leaves many diagnosed with the psychiatric condition of post-traumatic stress disorder, or PTSD. PTSD is associated with several abnormalities in brain structure and function. However, as researcher Roger Pitman explains, Although it is tempting to conclude that these abnormalities were caused by the traumatic event, it is also possible that they were pre-existing risk factors that increased the risk of developing PTSD upon the traumatic events occurrence. Drs. Kasai and Yamasue along with their colleagues sought to examine this association in a new study published in the March 15th issue of Biological Psychiatry.

The authors measured the gray matter density of the brains of combat-exposed Vietnam veterans, some with and some without PTSD, and their combat-unexposed identical twins using a technology called magnetic resonance imaging (MRI). The detailed images provided by the MRI scans then allowed the investigators to compare specific brain regions of the siblings. They found that the gray matter density of the pregenual anterior cingulate cortex, an area of the brain involved in emotional functioning, was reduced in veterans with PTSD, but not in their twins who had not experienced combat. According to Dr. Pitman, this finding supports the conclusion that the psychological stress resulting from the traumatic stressor may damage this brain region, with deleterious emotional consequences.

John H. Krystal, M.D., Editor of Biological Psychiatry and affiliated with both Yale University School of Medicine and the VA Connecticut Healthcare System, discusses the need for this kind of research because of two separate sets of prior findings: On the one hand, compelling data from animal research indicates that stress can cause brain atrophy and even neural death in some brain regions. On the other hand, the volume of several brain regions are highly heritable and small brain volumes, presumably related to reduced function, in the hippocampus may increase stress reactivity or impair the capacity for resilience. He adds that findings from this study suggest that volume reductions in [the anterior cingulate cortex] associated with PTSD arise as a consequence of stress exposure rather than emerging as a heritable trait, leaving one to conclude that the extent to which particular genes and environmental exposures interact to shape the development of the brain thus appears to be complex and region-specific.


'/>"/>

Contact: Jayne Dawkins
ja.dawkins@elsevier.com
215-239-3674
Elsevier
Source:Eurekalert

Related medicine news :

1. Planning for Health Emergencies Eases Stress of Family Travel
2. Stress Can Help Trigger Stroke
3. Groundbreaking Sign Chi Do Stress Management System Introduced by Dr. Anne Borik Now Available to the Public
4. Stress and fear can affect cancers recurrence
5. Brain stress system presents possible treatment
6. VIDEO from Medialink and Siemens: NFL Stars Stress the Importance of a Healthy Heart
7. New Scenic Relaxation Videos Help Reduce Stress, Promote Sense of Calm and Tranquility
8. Patients relatives are ignored by the health system and suffer emotional stress
9. Stress hormone impacts memory, learning in diabetic rodents
10. Stress may increase a womans risk of developing cervical cancer
11. Daily Stress May Raise Womens Risk of Cervical Cancer
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:8/22/2017)... ... , ... Nurses at Apple Rehab Watch Hill , a nursing and ... certification in Closed Pulse Irrigation™ (CPI) for wound care. This qualifies ... for Medicare and Medicaid Services, to have a CPI machine that will provide better ...
(Date:8/22/2017)... ... , ... “Covert Awakening”: Walid’s spiritual journey from Islamic terrorist ... a consultant for the Intelligence Community. For more than ten years, she ... region. Julianne has written hundreds of reports for the US government analyzing ...
(Date:8/22/2017)... ... 2017 , ... Although Labor Day is not as popular for fireworks as ... displays, and numerous households celebrate the unofficial end of summer with backyard fireworks shows. ... , Kris Zambo, owner of Dynamite Fireworks in Hammond, Indiana, provides ...
(Date:8/21/2017)... ... , ... FCPX LUT Monochromatic Volume 2 is an all-new Look-Up Table color-grading ... grades to footage. A LUT is a Lookup Table that contains a mathematical formula ... indicated by the table. This pack comes with 60 different monochromatic CUBE LUT files. ...
(Date:8/21/2017)... CA (PRWEB) , ... August 21, 2017 , ... The ... how exactly are we supposed to get things done in a healthy way these ... And, they’re launching a crowdfunding campaign on August 28 to introduce Deskcise Pro™– the ...
Breaking Medicine News(10 mins):
(Date:8/15/2017)... -- Diplomat Pharmacy, Inc. (NYSE: DPLO), is now dispensing ... residents. Naloxone is available without a prescription ... G-3320 Beecher Road. ... is intended to block or reverse the effects of ... consciousness. The medication is often carried by first responders ...
(Date:8/11/2017)... CAESAREA, Israel , Aug. 11, 2017 ... company with mobile health and big data solutions, today ... results on Monday, August 14 and host a conference ... second quarter 2017 operating and financial results and its ... call will be hosted by Erez Raphael , ...
(Date:8/7/2017)... Zimmer Biomet Holdings, Inc. (NYSE and SIX: ZBH), ... Board of Directors has approved the payment of a quarterly ... The cash dividend of ... 27, 2017 to stockholders of record as of the close ... are subject to approval of the Board of Directors and ...
Breaking Medicine Technology: