Navigation Links
Model sheds new light on sports-related brain injuries
Date:4/29/2014

A new study has provided insight into the behavioral damage caused by repeated blows to the head. The research provides a foundation for scientists to better understand and potentially develop new ways to detect and prevent the repetitive sports injuries that can lead to the condition known as chronic traumatic encephalopathy (CTE).

The research which appears online this week in the Journal of Neurotrauma shows that mice with mild, repetitive traumatic brain injury (TBI) develop many of the same behavioral problems, such as difficultly sleeping, memory problems, depression, judgment and risk-taking issues, that have been associated with the condition in humans.

One of the barriers to potential treatments for TBI and CTE is that no model of the disease exists. Animal equivalents of human diseases are a critical early-stage tool in the scientific process of understanding a condition, developing new ways to diagnose it, and evaluating experimental therapies.

"This new model captures both the clinical aspects of repetitive mild TBI and CTE," said Anthony L. Petraglia, M.D., a neurosurgeon with the University of Rochester School of Medicine and Dentistry and lead author of the study. "While public awareness of the long-term health risk of blows to the head is growing rapidly, our ability to scientifically study the fundamental neurological impact of mild brain injuries has lagged."

There has been a great deal of discussion in recent years regarding concussions as a result of blows to the head in sports. An estimated 3.8 million sports-related concussions occur every year. Mild traumatic brain injury is also becoming more common in military personnel deployed in combat zones. Over time, the frequency and degree of these injuries can lead short and long-term neurological impairment and, in extreme examples, to CTE, a form of degenerative brain disease.

The experiments described in the study were designed in a manner that simulates the type of mild TBI that may occur in sports or other blows to the head. The researchers evaluated the mice's performance in a series of tasks designed to measure behavior. These included tests to measure spatial and learning memory, anxiety and risk-taking behavior, the presence of depression-like behavior, sleep disturbances, and the electrical activity of their brain. The mice with repetitive mild TBI did poorly in every test and this poor performance persisted over time.

"These results resemble the spectrum of neuro-behavioral problems that have been reported and observed in individuals who have sustained multiple mild TBI and those who were subsequently diagnosed with CTE, including behaviors such as poor judgment, risk taking, and depression," said Petraglia.

Petraglia and his colleagues also used the model to examine the damage that was occurring in the brains of the mice over time. The results, which will be published in a forthcoming paper, provide insight on the interaction between the brains repair mechanisms in the forms of astrocytes and microglia and the protein tau, which can have a toxic effect when triggered by mild traumatic brain injury.

"Undoubtedly further work is needed," said Petraglia. "However, this study serves as a good starting point and it is hoped that with continued investigation this novel model will allow for a controlled, mechanistic analysis of repetitive mild TBI and CTE in the future, because it is the first to encapsulate the spectrum of this human phenomenon."


'/>"/>

Contact: Mark Michaud
mark_michaud@urmc.rochester.edu
585-273-4790
University of Rochester Medical Center
Source:Eurekalert

Related medicine news :

1. NIH scientists establish monkey model of hantavirus disease
2. Stanford scientists create circuit board modeled on the human brain
3. New prediction model to improve patient survival after paracetamol-related liver failure
4. Overcoming structural uncertainty in computer models
5. Model predicts blood glucose levels 30 minutes later
6. Diabetes drug shows promise in reducing Alzheimers disease in an experimental model
7. Multidisciplinary research team led by Tufts CTSI proposes new model for clinical trials
8. UCSF, Walgreens open new pharmacy to explore new models of patient-centered care
9. Building a better mouse model to understand pancreatic cancer
10. Toxin from brain cells triggers neuron loss in human ALS model
11. MD Anderson guides intelligent redesign of cancer care delivery model
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:8/18/2017)... ... ... Pastor and Overseer at The House of Yahweh in Abilene, Texas, has released a new ... the mother of the Savior whom the world calls “Mother Mary”. Yisrayl says when compared ... of this historical woman. , “The world bows, kisses the feet of, cries out ...
(Date:8/18/2017)... CARMEL, IN (PRWEB) , ... August 18, 2017 , ... ... 36th annual list, the most prestigious ranking of the nation's fastest-growing private companies. This ... in the exclusive Inc. 5000 ranking . This year’s ranking reflects ASH’s 76 ...
(Date:8/18/2017)... ... 18, 2017 , ... “Our Mountains to Climb: A Journey of Love and ... stronger together through the faith they shared to overcome struggles in life. “Our Mountains ... published author, Barbara J. Corcoran, a retired teacher and happily married since 1999; the ...
(Date:8/18/2017)... ... ... “Three Narrow Roads”: a vivid and provocative look into the narrow path toward ... Sr., is currently the pastor-teacher-visionary at Simply the WORD Church, a global prayer ministry ... program geared towards youth. , King shares, “When I take time to think about ...
(Date:8/18/2017)... ... August 18, 2017 , ... “Depressed: Super Heroes of the Bible”: ... reflect upon the stories and the relevance these tales may have on the reader’s ... Linhart, a former special education teacher, Jessica spends much of her time enjoying nature ...
Breaking Medicine News(10 mins):
(Date:7/31/2017)... July 31, 2017 7D Surgical, developer of ground ... purchased the 7D Surgical System to support its strategic sales ... D.C. and Virginia.  7D Surgical has entered into ... of the premier medical facilities within those markets. ... ...
(Date:7/28/2017)... --EnvoyHealth, a Diplomat company, has partnered with Compliance Meds ... a technology designed to improve patient medication adherence. ... solutions and services that help track and improve patients, ... LITE offers medication monitoring and control for patients and ... Records date and time of bottle ...
(Date:7/27/2017)... Pa., July 27, 2017  West Pharmaceutical Services, Inc. ... results for the second-quarter 2017 and updated financial guidance ... Second-Quarter 2017 Highlights Reported net ... over the prior-year quarter. Net sales at constant currency ... reported-diluted EPS was $0.51, compared to $0.60 in the ...
Breaking Medicine Technology: