Navigation Links
New brain nerve cells key to stress resilience, UT Southwestern researchers find
Date:3/30/2010

DALLAS March 31, 2010 UT Southwestern Medical Center researchers have found new clues that might help explain why some people are more susceptible to stress than others.

In a study of mice, the researchers determined that weeks after experiencing a stressful event, animals that were more susceptible to stress exhibited enhanced neurogenesis the birth of new nerve cells in the brain. Specifically, the cells that these animals produced after a stressful event survived longer than new brain cells produced by mice that were more resilient.

In addition, when researchers prevented neurogenesis in both stress-susceptible and resilient mice, the animals previously susceptible to stress became more resilient.

"This work shows that there is a period of time during which it may be possible to alter memories relevant to a social situation by manipulating adult-generated nerve cells in the brain," said Dr. Amelia Eisch, associate professor of psychiatry at UT Southwestern and senior author of the study, available in the Proceedings of the National Academy of Sciences. "This could eventually lead to a better understanding of why, in humans, there is an enormous variety of responses to stressful situations."

Mice that are susceptible to stress exhibit long-lasting social avoidance and depressive-like behavior after experiencing a stressful event, such as being placed in a cage with a more aggressive mouse. Resilient mice behave more like unstressed control animals. This animal model is commonly used in studies of stress and depression, as understanding the changes in the brain and behavior of the mice can shed light on stress-induced changes in the human brain and in human behavior.

In the study, the brain cells of both groups of mice responded in similar ways after a stressful event. But weeks later, researchers found that mice displaying social avoidance had more nerve cells in a region of the brain called the hippoc
'/>"/>

Contact: LaKisha Ladson
lakisha.ladson@utsouthwestern.edu
214-648-3404
UT Southwestern Medical Center
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. Invasion of the brain tumors
2. HIV is a double hit to the brain
3. AIDS interferes with stem cells in the brain
4. 60 second test could help early diagnosis of common brain diseases
5. U of MN researchers discover noninvasive diagnostic tool for brain diseases
6. U of Minnesota researchers discover noninvasive diagnostic tool for brain diseases
7. Influence of sex and handedness on brain is similar in capuchin monkeys and humans
8. Inside the brain of a crayfish
9. Specific brain protein required for nerve cell connections to form and function
10. Brains timing linked with timescales of the natural visual world
11. Adult brain can change, study confirms
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:8/22/2014)... , August 22, 2014 ... ) has announced the addition of ... 2014-2018"  report to their offering.  ... ,Biometrics is a technology that helps ... on their physical or behavioral features. ...
(Date:8/22/2014)... Thomson Reuters , a leading source of ... at the University of California, Riverside in its 2014 ... of our times." , To generate the list, the ... identify researchers whose published work has had enormous impact. ... some 3,200 individuals who published the greatest number of ...
(Date:8/22/2014)... CA Research presented at the 29th Annual ... developed by Hera Therapeutics Inc. combats three types ... 70 percent of all cervical cancer. , When ... blocked the replication of HPV-16, HPV-18 and HPV-11 ... Thomas Broker, Ph.D., who presented the findings at ...
Breaking Biology News(10 mins):Biometrics Market in North America 2014-2018: Key Vendors are 3M Cogent, Cross Match, NEC and Safran SA 2Biometrics Market in North America 2014-2018: Key Vendors are 3M Cogent, Cross Match, NEC and Safran SA 35 UC Riverside scientists among world's most influential scientific minds 2
... from the devastating magnitude-7 earthquake that struck Haiti on ... that might have caused the quake, but installed four ... , University of Washington civil and environmental engineering professor ... to the United States Southern Command, responsible for all ...
... , Those who live in industrialized countries have easy access ... still common. That,s a problem because new research from Tel ... functioning of memory, may be even more critical than previously ... in adults. Begun at MIT, the research started as ...
... behavior of teenagers is well documented, University of ... finally unraveling the actual brain activity that can ... self-destructive behavior. Published in the current edition of ... brains are more sensitive to internal and environmental ...
Cached Biology News:Earthquake engineers release report on damage in Haiti 2Earthquake engineers release report on damage in Haiti 3Remember magnesium if you want to remember 2Pitt researchers report internal and environmental factors trigger unique brain activity in teens 2Pitt researchers report internal and environmental factors trigger unique brain activity in teens 3
(Date:8/23/2014)... August 23, 2014 Dr. ... LLC announced today that Janet B. Arrowsmith, MD, ... consultant. NDA Partners Premier Experts are top tier ... to bring extraordinary value to the company’s clients. ... solutions to help clients successfully develop their medical ...
(Date:8/22/2014)... 23, 2014 This is a ... of the Papain industry in Global and China. ... industry, including definitions, applications and industry chain structure. ... are provided with a focus on history, developments, ... comparison between the international and Chinese situation is ...
(Date:8/22/2014)... (PRWEB) August 22, 2014 Today the Academy ... the United States Court of Appeals for the D.C. Circuit ... Aircraft published in the Federal Register on June 25, 2014. ... is contrary to the text and intent of the FAA ... violates Congress’ specific prohibition on any new rules or regulations ...
(Date:8/22/2014)... BIOREM Inc. (TSXV: BRM) ("Biorem" or "the Company") today announced results for ... complete 2014 second quarter financial statements and MD&A have been filed on ... 30, , Six-months ended June 30, ( in CDN$,000 except ... , 2014 , 2013 Revenue , 2,459 ... profit , 56 , 1,485 , 385 ...
Breaking Biology Technology:Noted Epidemiologist and Former FDA Deputy Director Janet B. Arrowsmith, MD, Joins NDA Partners as a Premier Expert Consultant 2Papain Industry Global & China Development Trend and Proposals Analysis Research Report Available at DeepResearchReports.com 2Papain Industry Global & China Development Trend and Proposals Analysis Research Report Available at DeepResearchReports.com 3AMA Files Petition for Review of FAA’s Interpretive Rule 2Biorem Reports 2014 Second Quarter Results 2Biorem Reports 2014 Second Quarter Results 3
... Small Tree Communications , a supplier of high-performance networking ... software protocol called Blaze, expected to ship in the third ... High-Definition digital video editing. , ,Blaze will make it ... on the newer high-end 10 gigabit Ethernet cards. It ...
... Corporation and Middleton-based Bone Care International Inc. announced ... their proposed merger. , ,Genzyme and Bone Care have signed ... Care in an all-cash transaction valued at $33.00 per ... by Bone Care's shareholders at a meeting on ...
... - Stratatech Corp. was awarded a federal ... of General Medical Sciences to further develop its engineered human ... Madison and employs 18 people, according to the 2005 edition ... Its products are based on a source of pathogen-free human ...
Cached Biology Technology:Small Tree is streamlining digital video editing 2Small Tree is streamlining digital video editing 3
For the development of an immunoprecipitation assay to measure Chk1 kinase activity in cell lysates....
Non-Protein Peroxidase Stabilizer , 1 L...
... is an agarose-digesting enzyme isolated from ... carbohydrate bonds in agarose producing carbohydrate ... The remaining carbohydrate molecules will not ... isolated with Gelzyme enzyme can be ...
RABBIT ANTI QUINOLINIC ACID...
Biology Products: