Navigation Links
Hormone levels contribute to stress resilience
Date:8/5/2009

Philadelphia, PA, 5 August 2009 - It is important to understand what biological mechanisms contribute to an individual's capacity to be resilient under conditions of extreme stress, such as those regularly experienced by soldiers, police, and firefighters. Dr. Charles A. Morgan III and his colleagues from Yale University and the VA National Center for PTSD have worked closely with collaborators at the Special Forces Underwater Warfare Operations Center to study special operations soldiers enrolled in the military Combat Diver Qualification Course (CDQC).

Dehydroepiandrosterone, or "DHEA" as it is commonly known, is a hormone that is secreted by the adrenal gland in response to stress. Although medical scientists have known for over a decade that DHEA provides beneficial, anti-stress effects in animals, they did not know until now whether this was also true for humans.

The scientists completed psychological and hormone assessments on a group of soldiers the day before they began the month-long CDQC, and immediately after their final pass/fail exam a highly stressful, nocturnal, underwater navigation exercise.

They found that soldiers with more DHEA performed better during the final underwater navigation exam than those with less DHEA. These findings are being published by Elsevier in the August 15th issue of Biological Psychiatry.

Underwater navigation is a task that relies on an area of the brain called the hippocampus that is very sensitive to the negative effects of stress. "Animal studies have shown that DHEA buffers against stress, in part, by modulating receptors in this region of the brain," explained Dr. Morgan. "These findings are important in understanding why and how soldiers may differ in their ability to tolerate stress and also raise the possibility that, in the future, compounds like DHEA might be used to protect military personnel from the negative impact of operational stress."

Clearly, additional research is still needed but these findings are a step forward in the quest to help prevent or better treat the symptoms of stress-related disorders that these high-risk individuals experience.


'/>"/>

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

Related biology news :

1. Hormone clue to root growth
2. Lack of happiness hormone serotonin in the brain causes impaired maternal behavior in mice
3. Fatty foods -- not empty stomach -- fire up hunger hormone
4. Hormone-mimics in plastic water bottles -- just the tip of the iceberg?
5. Pregnancy hormone predicts postpartum depression
6. Protein that regulates hormones critical to womens health found in pituitary
7. Hormone therapy associated with reduced colorectal cancer risk
8. Food can affect a cell in the same way hormones do
9. Children distressed by family fighting have higher stress hormones
10. Apelin hormone injections powerfully lower blood sugar
11. Birth control has long-term effect on hormone exposure
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:5/23/2017)... the first robotic gym for the rehabilitation and functional motor sense evaluation ... Genoa, Italy . The first 30 robots will be available from ... . The technology was developed and patented at the IIT laboratories ... Technology thanks to a 10 million euro investment from entrepreneur Sergio Dompè. ... ...
(Date:4/19/2017)... New York , April 19, 2017 ... competitive, as its vendor landscape is marked by the ... the market is however held by five major players ... Safran. Together these companies accounted for nearly 61% of ... of the leading companies in the global military biometrics ...
(Date:4/11/2017)... , April 11, 2017 Crossmatch®, ... secure authentication solutions, today announced that it has ... Advanced Research Projects Activity (IARPA) to develop next-generation ... program. "Innovation has been a driving ... Thor program will allow us to innovate and ...
Breaking Biology News(10 mins):
(Date:7/16/2017)... (PRWEB) , ... July 16, 2017 , ... ... equipment and analytical instruments announced the launch of its new line of Extreme ... ideal for applications that require CO2 and humidity for optimal cell growth such ...
(Date:7/14/2017)... ... 14, 2017 , ... Sonic Manufacturing Technologies is proud to ... a solar system on its roof top. “We will be independent of the ... Raab stated. The company’s proud history of social responsibility and participation in the ...
(Date:7/14/2017)... ... July 13, 2017 , ... LGC Maine Standards ... US FDA 510 (k) clearance for use on Siemens Sysmex® CS-2500 System analyzers. ... D-Dimer kit, prepared using the CLSI EP06-A “equal delta” sample preparation, offers five ...
(Date:7/13/2017)... ... July 13, 2017 , ... Thousands of pilots from across the country will ... Championships (Nats). Pilots come to Muncie to compete in various categories of model flying ... that participate in world championships. , RC Pylon (July 14-21): One of the most ...
Breaking Biology Technology: