Navigation Links
Stress may cause the brain to become disconnected
Date:3/16/2009

Initial data by investigators, such as Robert Sapolsky at Stanford University, suggested that stress might promote the death of neurons, suggesting that the volume reductions in patients with PTSD might reflect the loss of nerve cells. More recent research by Bruce McEwen and colleagues at Rockefeller University indicates that stress can cause neurons to shrink or retract their connections. This could be critically important to the ability of these neurons to work together in highly inter-connected networks. But what is the link between this type of "neural remodeling" and the behavioral changes that follow extreme stress exposure?

The new paper by Hajszan and colleagues at Yale University suggests that in learned helplessness, an animal model for depression and PTSD, stress-related reductions in synapses in the hippocampus are directly related to the emergence of depression-like behavior. These data help to make the case that stress-related changes in the structure of nerve cells may have important behavioral consequences, explains Dr. Hajszan. "The importance of our findings is derived from the well-known fact that synapses have a great potential for rapid changes, which may underlie sudden mood swings. More importantly, it is feasible to restore hippocampal synapses in a very short period of time (hours or even minutes), which opens up exciting new avenues for developing rapid-acting antidepressants that may provide immediate relief from depressive symptoms."

It cannot yet be said that reductions in cortical volumes in patients with PTSD reflect reductions in the number of synapses. However, these findings underscore the potential importance of studying post-mortem human tissue to determine whether humans also show this pattern of neural changes. Dr. Krystal notes that "settling this issue could help us to better understand recent epidemiologic data suggesting that most of the adjustment problems of soldiers returning from Iraq and Afghani
'/>"/>

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

Page: 1 2 3

Related medicine news :

1. Teenage stress has implications for adult health
2. Beaumont Launches 1st U.S. Adult Human Stem Cell Study for Stress Urinary Incontinence
3. Ecstasy could help patients with post-traumatic stress disorder
4. Stress May Raise Diabetes Risk for Obese Black Women
5. National Council on Disability Says More Needs to be Done for Service Members and Veterans With Post Traumatic Stress Disorder and Traumatic Brain Injury
6. Post-Traumatic Stress Tied to Increased Suicide Risk
7. Taking the Stress Out of Funeral Planning, FuneralDecisions.com Offers Consumers an Innovative Approach
8. Leading Cause of Stress to Military War Veterans Key Topic at 35th Advanced International Winter Symposium
9. Transcendental Meditation buffers students against college stress: Study
10. Stress May Speed Melanoma Progression
11. The Midwest Center for Stress and Anxiety Re-launches Website for Stress, Anxiety, and Depression
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:9/22/2014)... Reinberg HealthDay Reporter MONDAY, ... all children aged 6 months and older be vaccinated for ... updated their influenza vaccine recommendations to advise that the youngest ... immunity. The AAP also wants parents of children aged 2 ... vaccine instead of the flu shot if it,s readily available. ...
(Date:9/22/2014)... Hamilton, ON (September 22, 2014) McMaster scientists have ... a new class of antibiotics. , Although dozens ... looked at how a certain part of bacteria are ... stopping it. , The discovery is important as ... is making the cures for infections ineffective. The World ...
(Date:9/22/2014)... 2014 Quincy Bioscience, one of ... promotes National Self-Improvement Month this September. ... should have access to self-improvement resources, especially for ... demand for products that preserve health is growing ... For over six years, Quincy Bioscience has been ...
(Date:9/22/2014)... 2014 (HealthDay News) -- Scans of young children,s ... read. This finding could potentially allow doctors to ... early on, preliminary research suggests. "Early identification ... dyslexia as well as most neurodevelopmental disorders," the ... professor of child and adolescent psychiatry at University ...
(Date:9/22/2014)... September 22, 2014 In a continued ... Jeep Dodge Ram is launching an awareness campaign inspired ... (#blindeggchallenge or #ffbBEC) aims to raise awareness and funds ... throwing an egg in the air and trying to ... others and if a nominee does not complete the ...
Breaking Medicine News(10 mins):Health News:Pediatricians Urge Flu Vaccine for All Kids 6 Months and Older 2Health News:Pediatricians Urge Flu Vaccine for All Kids 6 Months and Older 3Health News:Quincy Bioscience Promotes National Self-Improvement Month 2Health News:Can Brain Scans Help Predict Young Children's Reading Abilities? 2Health News:Blind Egg Challenge Raises Awareness for Foundation Fighting Blindness 2
... Agency Region 5 this week nears completion of a $1 ... Louis Park, Minn., A pair of open house-style meetings ... 2 to 4 p.m. and 6 to 8 p.m., at ... St. EPA,s,storefront office at 6528 W. Lake St., Ste. F., ...
... Institute July 18-20, WASHINGTON, June 17 ... health plans and health networks wrestling with,market demands ... of,credentialing services., (Logo: http://www.newscom.com/cgi-bin/prnh/20030501/URACLOGO ), ... AHIP Institute, June 18-20,in San Francisco. URAC is ...
... get to its destination can mean life or death. ... services to people in need as efficiently as possible, ... three Cornell researchers are tackling in groundbreaking ways. , ... allowing associate professor of operations research Shane Henderson, assistant ...
... reported a 44-year-old woman who presented with upper right abdominal ... lobe, histopathological diagnosis of the isodensity mass in segment V ... hepatic and gumma, respectively. , This study, performed by a ... research article to be published on March 28, 2008 in ...
... to be Available for Interviews to,Discuss his Personal ... of Risks, WASHINGTON, June 17 The ... placed the public health crisis of,sudden cardiac arrest ... conversations and physicians, offices around the country., ...
... Emageon Inc.,(Nasdaq: EMAG ), a leader ... networks and imaging facilities announced,today that Chuck Jett, ... 2nd Annual Healthcare Conference on June 24-26, 2008. ... AM ET. The presentation will be,webcast at ...
Cached Medicine News:Health News:St. Louis Park Vapor Systems Installation Nearly Complete; Meeting July 10 2Health News:New URAC Issue Brief Answers Questions About Delegated Credentialing, Transparency in Physician Tiering Programs 2Health News:New URAC Issue Brief Answers Questions About Delegated Credentialing, Transparency in Physician Tiering Programs 3Health News:Cornell efficiency experts seek to save precious minutes in deploying ambulances 2Health News:How to diagnose peliosis hepatis 2Health News:Tim Russert's Death Provides Important Opportunity for News Media to Increase Public Awareness of How to Prevent Sudden Cardiac Arrest 2
(Date:9/22/2014)... 2014  Aethlon Medical, Inc. (OTCQB: AEMD), the ... infectious disease, cancer and other life-threatening conditions, disclosed ... (DARPA) has informed the Company that it plans ... four of a five-year $5.9 million contract that ... under DARPA,s Dialysis-Like Therapeutics (DLT) program. ...
(Date:9/22/2014)... 2014 /PRNewswire/-- CANTEL MEDICAL CORP. (NYSE: CMN ) will ... ended July 31, 2014 on Monday, September 29 before the ... results at 11:00 AM ET. Participating in the call will ... Krakauer , President and CEO; Jorgen B. Hansen , ... Senior Vice President, CFO and Treasurer; and Seth Yellin ...
(Date:9/22/2014)... SAN FRANCISCO , Sept. 22, 2014  Sutro ... FierceBiotech as one of 2014,s Fierce 15 ... promising private biotechnology companies in the industry.  ... A-list group of backers as well as industry partners ... developing antibody-drug conjugates and bispecifics," says John Carroll ...
Breaking Medicine Technology:Aethlon Medical Receives Notice of DARPA Contract Renewal 2Aethlon Medical Receives Notice of DARPA Contract Renewal 3Aethlon Medical Receives Notice of DARPA Contract Renewal 4Cantel Medical Corp. To Hold Conference Call To Discuss Results For Its Fourth Quarter And Fiscal 2014 Ended July 31, 2014 2FierceBiotech names Sutro Biopharma as one of its "Fierce 15" Biotech Companies of 2014 2FierceBiotech names Sutro Biopharma as one of its "Fierce 15" Biotech Companies of 2014 3
... Statistically Significant and Clinically Relevant, Results ... Neuropathy, SAN FRANCISCO, June 8 Sangamo ... presentation of encouraging Phase,1b clinical data from its ... the American Diabetes Association (ADA). As,disclosed in an ...
... Control Are, Not Statistically Significant but Show Favorable Trend in Reducing Most ... ... FRANCISCO, June 8 Findings from the Veterans,Affairs Diabetes Trial (VADT), a ... today at the 68th Scientific Sessions of the American Diabetes,Association (ADA). According ...
Cached Medicine Technology:Sangamo BioSciences Announces Presentation of Phase 1b ZFP Therapeutic Data at American Diabetes Association Meeting 2Sangamo BioSciences Announces Presentation of Phase 1b ZFP Therapeutic Data at American Diabetes Association Meeting 3Sangamo BioSciences Announces Presentation of Phase 1b ZFP Therapeutic Data at American Diabetes Association Meeting 4Sangamo BioSciences Announces Presentation of Phase 1b ZFP Therapeutic Data at American Diabetes Association Meeting 5Sangamo BioSciences Announces Presentation of Phase 1b ZFP Therapeutic Data at American Diabetes Association Meeting 6Sangamo BioSciences Announces Presentation of Phase 1b ZFP Therapeutic Data at American Diabetes Association Meeting 7Sangamo BioSciences Announces Presentation of Phase 1b ZFP Therapeutic Data at American Diabetes Association Meeting 8Sangamo BioSciences Announces Presentation of Phase 1b ZFP Therapeutic Data at American Diabetes Association Meeting 9Large, Long-Term Veterans Affairs Diabetes Trial (VADT) Reveals Important Cardiovascular Safety News on AVANDIA(R) 2Large, Long-Term Veterans Affairs Diabetes Trial (VADT) Reveals Important Cardiovascular Safety News on AVANDIA(R) 3Large, Long-Term Veterans Affairs Diabetes Trial (VADT) Reveals Important Cardiovascular Safety News on AVANDIA(R) 4
Stainless steel flexible ruler. graduated in 1/32 inches (.8 mm) fractions, as well as mm graduations....
At 14 cm point, ruler is bent at 90 degrees angle brought to a blunt point at 15 cm....
Rigid Endoscopes....
Endoscopes are also available in fully autoclavable models in 1.8, 2.7, 4.0. 5.0 and 10.0 mm diameters. Manufactured with precise swiss lenses. Built-in temperature measuring device to exactly determ...
Medicine Products: