HOME >> MEDICINE >> NEWS
Mouse provides clues about chronic pain

Investigators at Washington University School of Medicine in St. Louis have found that a protein that allows nerve cells to communicate may enhance perceptions of chronic and persistent pain. In the February issue of Nature Neuroscience, they report the protein, called NR2B, makes mice more aware of minor pain for longer periods of time.

"That sustained response appears to mimic what happens in people who experience pain long after the painful stimulus has disappeared," says principal investigator Min Zhuo, Ph.D., an associate professor of anesthesiology and of anatomy and neurobiology. "So interfering with NR2B in humans might be a strategy for treating chronic pain."

NR2B is one of the mix-and-match building blocks of important cellular proteins called NMDA receptors. Like radio receivers, these receptors sit on the cell surface, tuned in to messages sent from neighboring cells and carried by the chemical messenger glutamate. More importantly, NMDA receptors are a neurons activity detectors, and they function only when the number and intensity of neuronal messages reach a prescribed, threshold level.

Because NMDA receptors only become activated at these threshold levels, they tend to be the primary neuronal receptors involved in important brain functions such as learning and memory and in injurious brain processes such as stroke, head injury and drug abuse. They also are the primary receptors involved in persistent pain.

The researchers studied a strain of genetically altered mice that was created by Joe Tsien, Ph.D. and colleagues at Princeton University to make extra NR2B in forebrain areas. The Washington University group found that these mice reacted to acute pain in the same way as normal mice. But the NR2B mice seemed to have stronger or longer periods of behavioral responses to two different models of more persistent, inflammatory pain. None of the mice demonstrated pain symptoms in the absence of an injury.

"We believe that when an i
'"/>

Contact: Jim Dryden
drydenj@msnotes.wustl.edu
314-286-0110
Washington University School of Medicine
27-Jan-2001


Page: 1 2 3 4

Related medicine news :

1. Mouse model reveals potential way to reduce cardiac deaths in kidney patients
2. Mouse gene shows new mechanism behind cardiac infarction in man
3. Mouse model gives insight to human hair loss
4. Mouse study: Signal overload in Alzheimer brains
5. Mouse shows how Rituximab removes human B cells
6. Mouse study could aid vaccine designers
7. Mouse model mimics real-world plague infection
8. Mouse antibodies thwart SARS virus
9. Mouse model of neuromuscular disease identifies key player in motor neuron death
10. Mouse study gives new view of anthrax toxin
11. Mouse studies reveal immune mechanism involved in bone loss caused by estrogen deficiency

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:2/12/2016)... York, NY (PRWEB) , ... February 12, 2016 ... ... edition of “Revolutionizing Cancer Care.” , The print component of “Revolutionizing ... Chicago, Dallas, Pittsburgh/Cleveland, New York, Washington DC/Baltimore, and Seattle, with a circulation of ...
(Date:2/12/2016)... , ... February 12, 2016 , ... A lot has ... 35 years. A president has access to health and wellness resources most Americans could ... world, no single individual has a schedule as frenetic as the U.S. President. ...
(Date:2/12/2016)... ... February 12, 2016 , ... Basketball is a game ... part of the Peety PoppersTM series, sign language translation is featured in the top ... and wellness in Peety PoppersTM lessons has a sign language translator to teach kids ...
(Date:2/11/2016)... ... February 11, 2016 , ... “ HEALING MIND : Five ... Managed Mind” (published by Balboa Press) teaches readers how to become their own therapist. ... love, author Janice McDermott, M.Ed., LCSW, offers an understanding of how to heal one’s ...
(Date:2/11/2016)... ... February 11, 2016 , ... Dr. Sadati’s recent feature ... procedures. Along with performing procedures, the magazine also highlights that Dr. Sadati has ... One of the most common procedures he performs is his natural facelift. “As ...
Breaking Medicine News(10 mins):
(Date:2/11/2016)... -- Wearable posture tracker, ALEX , has taken Kickstarter by storm, crowdfunding over $60,000 – or ... go, ALEX is said to be delivered to backers starting May of this year. ... ... ... Created by NAMU, a team of biomedical engineers ...
(Date:2/11/2016)... Transformational M&A achieved through NPS and ... --> Transformational M&A achieved through NPS and Dyax acquisitions ... Transformational M&A achieved through NPS and Dyax acquisitions and ... future growth with most robust pipeline in Shire , ... growth with most robust pipeline in Shire , ...
(Date:2/11/2016)... MEMPHIS, Tenn. , Feb. 11, 2016 ... a promising new treatment method at West Cancer ... low intensity electric fields to inhibit cancer cell replication ... therapy in more than a decade to show a ... adult Glioblastoma Multiforme (GBM) patients. Currently, West Cancer Center ...
Breaking Medicine Technology:
Cached News: