Featured Research

from universities, journals, and other organizations

New principle discovered for how muscle pain is signaled

Date:
July 19, 2010
Source:
Expertanswer (Expertsvar in Swedish)
Summary:
Chronic muscular pain may be linked to a previously unknown principle for how pain signals are transmitted in the human body, according to new research from Sweden.

Chronic muscular pain may be linked to a previously unknown principle for how pain signals are transmitted in the human body.

This is shown by Umeå University researchers Tuija Athanassiadis and Karl-Gunnar Westberg, in collaboration with Canadian associates, in the scientific journal PLoS ONE.

Muscles have sensory organs called muscle spindles. Their task is to inform the brain of changes in muscle length. Muscle spindles therefore contain a special type of large diameter nerve filaments that signal stretch of the muscle. The Umeå scientists' studies show that muscle spindles also contain fine nerve filaments with pain receptors. When a muscle is damaged as a result of overloading, these pain receptors are activated by the release of a signal substance from the neighboring stretch-sensitive nerve filaments in the muscle spindle.

It was previously believed that the pain receptors in muscles were exclusively found in the membranes that surround the muscles or in connection with the blood vessels in the muscle. With these new findings the Umeå researchers are drawing attention to a hitherto unknown and interesting mechanism. Damage to the stretch-sensitive nerve filaments of the muscle spindle may contribute to and sustain chronic pain in jaw muscles as well as in other muscles.


Story Source:

The above story is based on materials provided by Expertanswer (Expertsvar in Swedish). Note: Materials may be edited for content and length.


Journal Reference:

  1. James P. Lund, Somayeh Sadeghi, Tuija Athanassiadis, Nadia Caram Salas, François Auclair, Benoît Thivierge, Isabel Arsenault, Pierre Rompré, Karl-Gunnar Westberg, Arlette Kolta, Shawn Hochman. Assessment of the Potential Role of Muscle Spindle Mechanoreceptor Afferents in Chronic Muscle Pain in the Rat Masseter Muscle. PLoS ONE, 2010; 5 (6): e11131 DOI: 10.1371/journal.pone.0011131

Cite This Page:

Expertanswer (Expertsvar in Swedish). "New principle discovered for how muscle pain is signaled." ScienceDaily. ScienceDaily, 19 July 2010. <www.sciencedaily.com/releases/2010/06/100624091755.htm>.
Expertanswer (Expertsvar in Swedish). (2010, July 19). New principle discovered for how muscle pain is signaled. ScienceDaily. Retrieved August 1, 2014 from www.sciencedaily.com/releases/2010/06/100624091755.htm
Expertanswer (Expertsvar in Swedish). "New principle discovered for how muscle pain is signaled." ScienceDaily. www.sciencedaily.com/releases/2010/06/100624091755.htm (accessed August 1, 2014).

Share This




More Health & Medicine News

Friday, August 1, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

House Republicans Vote to Sue Obama Over Healthcare Law

House Republicans Vote to Sue Obama Over Healthcare Law

Reuters - US Online Video (July 31, 2014) — The Republican-led House of Representatives votes to sue President Obama, accusing him of overstepping his executive authority in making changes to the Affordable Care Act. Mana Rabiee reports. Video provided by Reuters
Powered by NewsLook.com
Despite Health Questions, E-Cigs Are Beneficial: Study

Despite Health Questions, E-Cigs Are Beneficial: Study

Newsy (July 31, 2014) — Citing 81 previous studies, new research out of London suggests the benefits of smoking e-cigarettes instead of regular ones outweighs the risks. Video provided by Newsy
Powered by NewsLook.com
Dangerous Bacteria Kills One in Florida

Dangerous Bacteria Kills One in Florida

AP (July 31, 2014) — Sarasota County, Florida health officials have issued a warning against eating raw oysters and exposing open wounds to coastal and inland waters after a dangerous bacteria killed one person and made another sick. (July 31) Video provided by AP
Powered by NewsLook.com
Health Insurers' Profits Slide

Health Insurers' Profits Slide

Reuters - Business Video Online (July 30, 2014) — Obamacare-related costs were said to be behind the profit plunge at Wellpoint and Humana, but Wellpoint sees the new exchanges boosting its earnings for the full year. Fred Katayama reports. Video provided by Reuters
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
 
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:  

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:  

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile iPhone Android Web
Follow Facebook Twitter Google+
Subscribe RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins