Navigation Links
Stress Produces PTSD-like Symptoms in Rats

Researchers at the University of South Florida and the James A. Haley Veterans’ Hospital in Tampa have developed new ways of assessing Post-Traumatic Stress Disorder// (PTSD). These new studies show that strong, purely psychological stress produces behavioral symptoms in animal models similar to those commonly observed in people diagnosed with PTSD.

The investigators found that test rats exposed to two intense periods of stress, in conjunction with daily social stress, exhibited increased anxiety, heightened cardiovascular activity and impaired memory.

Phillip Zoladz, a USF doctoral student in psychology, conducted the research under the guidance of David Diamond, a research scientist with the Tampa VA and a professor of psychology and pharmacology at USF.

“Rats were exposed to a cat for one hour,” Zoladz said. “No physical harm came to the rats because of a barrier between the rats and cat.”

Diamond and Zoladz reasoned that because rats have a powerful instinctual fear of cats, the inability of the rats to escape from the cat would be traumatic, and that the experience would be analogous to the terror that people feel in life-threatening situations.

The rats were forced to “relive” their traumatic experience when they were unexpectedly exposed to the cat a second time, 10 days after the first exposure. Researchers also took into account the finding that a lack of social support can increase the likelihood that traumatized people will develop PTSD. The rats were housed with different cage mates on a daily basis to disrupt their social behaviors, followed by behavioral testing three weeks after the second exposure to cats.

People who experience horrific, life-threatening trauma, such as when soldiers are exposed to wartime combat, are at a substantial risk for developing post-traumatic stress disorder (PTSD). PTSD victims typically suffer from post-trauma distress because they relive their trauma
'"/>




Page: 1 2

Related medicine news :

1. Stress reduces your immunity- startling but true!!!!!
2. Stress can make you overweight
3. Stress response increases suicide risk
4. Stress triggers acne
5. Stress make acne worse
6. Stress may Worsen Acne
7. Stress can Trigger Heart Problems
8. The Best Way To Decrease Post-Mammogram Stress
9. Education Levels Found To Predict Stress
10. The Harmful Effects Of Stress in Young Adults
11. Diabetics To Seek Mental Counseling To Cope With Stress
Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Stress Produces PTSD like Symptoms Rats

(Date:4/17/2014)... 40 years away from a food shortage that will ... a top scientist at the U.S. Agency for International ... production will be limited on a global scale by ... Fred Davies, senior science advisor for the agency,s bureau ... destabilizing by 2050 as energy issues are today.", Davies, ...
(Date:4/17/2014)... its status as the leading weapon against the deadly ... with new research indicating it simply needs to be ... of the cheap anti-malarial drug chloroquine in treating and ... more than half a million people each year around ... developed resistance to chloroquine, but research carried out at ...
(Date:4/16/2014)... (April 16, 2014) A team that includes scientists from ... Science Center at San Antonio, Johns Hopkins University and St. ... a common fungus to infect the body. , The fungal ... and oral thrush, and is the most common fungal pathogen ...
(Date:4/15/2014)... solved a decades-old medical mystery and in the process have ... which kill about 1.5 million people a year. The researchers say ... drug that has been in use for more than 50 years ... as it is to the microbes it attacks. , A ...
(Date:4/14/2014)... Ford Hospital reached a medical milestone April 3, performing ... way to access the heart. , Henry Ford is ... unique procedure called transcaval valve replacement, which accesses the ... Michigan resident Viola Waller, 80, underwent Henry Ford,s first ...
Breaking Medicine News(10 mins):Health News:Food shortages could be most critical world issue by mid-century 2Health News:Scientists find new way to fight malaria drug resistance 2Health News:Potent, puzzling and (now less) toxic: Team discovers how antifungal drug works 2Health News:Potent, puzzling and (now less) toxic: Team discovers how antifungal drug works 3Health News:Henry Ford Hospital hits new heart valve surgery milestone 2
... Lomb is one of the leading company which manufactures contact ... serious eye infections in some users. // After ... inspect Bausch & Lomb facilities. There was extensive microbiological testing ... analyze the culprit behind the eye infection. Bausch & Lomb ...
... the wonder enzyme in sepsis increases the bodys vulnerability ... confers strong resistance to sepsis. // ,This ... humans. ,"The results of the study make ... elimination of bacterial pathogens, and that a deficiency allows ...
... it has been categorized in A,B and C. A biological ... call for special actions by the pubic health system. // ... at Rockefeller University which suggests that a newly discovered protein ... areas in which anthrax spores have been released. ...
... to the hospitals in the twin cities,following symtoms of cough, ... flu infection. // ,With this , the total ... ministry has confrimed that no H5N1 strain has been detected ... culled ever since the outbreak. ,The suspected bird ...
... behind the aggressive head and neck cancer was unveiled by ... // It is a highly malignant form of cancer ... triple interaction between CD44, hyaluronan (HA), and LARG. CD44 is ... a variety of cellular functions. Hyaluronan (HA) is a complex ...
... the more evident after this pathbreaking study. Overeating and ... children accoding to the study. // ,This study ... trend of childhood obesity, which is perhaps a reminder to ... advertisments targeting children. ,Nearly 5,407 students from 90 public ...
Cached Medicine News:Health News:Sepsis risk increased due to the absence of one key enzyme 2Health News:A Detail Analysis of Head and Neck Cancer 2
(Date:1/15/2014)... novel wearable injector slightly larger than an Oreo cookie may ... prescription drugs in the large doses required to treat a ... and genetic disorders.  An emerging biologic drugs ... to analysts.   Many of these drugs will require a new ...
(Date:1/14/2014)... , Jan. 14, 2014 Dynamic Healthcare Services, Inc. ("DHS"), ... that it acquired Progressive Home Medical Equipment, Inc. ("Progressive") of ... The terms of the acquisition were not disclosed. ... company providing a wide range of sleep, mobility, and respiratory ...
(Date:1/14/2014)... Jan. 14, 2014   Oligomerix, Inc. , a privately held ... Alzheimer,s disease (AD) and related neurodegenerative disorders, announced today ... Valhalla, NY as of January 15, 2014 ... New York Medical College. Oligomerix, which is ...
Breaking Medicine Technology:Enable Injections Presents A New Class of Injectors for Drug Delivery at PEPTalk, Drug Delivery Partnership Meetings 2Dynamic Healthcare Services Completes Progressive Home Medical Equipment of Clarion, PA Investment 2Dynamic Healthcare Services Completes Progressive Home Medical Equipment of Clarion, PA Investment 3Oligomerix Relocates Corporate Headquarters and Secures Additional Laboratory Space from New York Medical College 2
... Feb. 28, 2012 Landauer, Inc. (NYSE: LDR) ... quarterly cash dividend of $0.55 per share for the second ... 3, 2012, to shareholders of record on March 9, 2012. ... global provider of technical and analytical services to determine occupational ...
... N.C., Feb. 28, 2012  In an effort to maximize ... and biotech market research leaders must constantly evaluate the ... executives need to understand the optimal balance of external ... productivity in the quickly changing healthcare industry. ...
Cached Medicine Technology:Current Study Offers Window into Automation & Outsourcing Practices Within Top Pharmaceutical Market Research Groups 2
... is a national reference laboratory and a ... development. ARUP offers an extensive test menu ... in clinical and anatomic pathology. Owned by ... include more than half of the nation's ...
... ARUP Laboratories is a national reference laboratory ... research and development. ARUP offers an extensive ... medical tests in clinical and anatomic pathology. ... Laboratories' clients include more than half of ...
... reference laboratory and a worldwide leader in ... an extensive test menu of highly complex ... anatomic pathology. Owned by the University of ... half of the nation's university teaching hospitals ...
... Laboratories is a national reference laboratory and ... and development. ARUP offers an extensive test ... tests in clinical and anatomic pathology. Owned ... clients include more than half of the ...
Medicine Products: