Featured Research

from universities, journals, and other organizations

Nerve Cells In The Brain And Spinal Cord Sense Pain Caused By Physical Insult

Date:
January 9, 2009
Source:
Journal of Clinical Investigation
Summary:
Researchers have shown that the protein COX2 in mouse nerve cells in the central nervous system (CNS) is crucial for hypersensitivity to pain caused by the physical insult associated with inflammation, but not pain caused by the heat associated with inflammation. As pain caused by physical insult is a major symptom of postoperative and arthritic inflammation, it seems that COX2 in nerve cells in the CNS is central to the pain that accompanies these conditions.

Researchers have shown that the protein COX2 in mouse nerve cells in the central nervous system (CNS) is crucial for hypersensitivity to pain caused by the physical insult associated with inflammation, but not pain caused by the heat associated with inflammation. As pain caused by physical insult is a major symptom of postoperative and arthritic inflammation, it seems that COX2 in nerve cells in the CNS is central to the pain that accompanies these conditions.

Related Articles


The most common way of managing the pain that accompanies inflammation is to use drugs such as aspirin and ibuprofen.

These work by selectively blocking the protein COX2, which functions to produce soluble molecules known as prostaglandins. Although it is known that blocking COX2 in the tissue and in the brain and spinal cord (the CNS) reduces the pain that accompanies inflammation, the relative contribution of COX2 at these two sites to the pain that accompanies inflammation has not been determined.

However, a team of researchers, at Massachusetts General Hospital, Boston, and University of Pennsylvania, Philadelphia, have now shown that COX2 in mouse nerve cells in the CNS is crucial for some forms of pain associated with inflammation but not others. Specifically, hypersensitivity to pain caused by the heat associated with inflammation was normal in mice lacking COX2 in nerve cells in the CNS.

By contrast, hypersensitivity to pain caused by the physical insult associated with inflammation was abolished in these mice. As pain caused by physical insult is a major symptom of postoperative and arthritic inflammation, it seems that COX2 in nerve cells in the CNS is central to the pain that accompanies these conditions.


Story Source:

The above story is based on materials provided by Journal of Clinical Investigation. Note: Materials may be edited for content and length.


Journal Reference:

  1. COX2 in CNS neural cells mediates mechanical inflammatory pain hypersensitivity in mice. Journal of Clinical Investigation, Jan 6, 2009

Cite This Page:

Journal of Clinical Investigation. "Nerve Cells In The Brain And Spinal Cord Sense Pain Caused By Physical Insult." ScienceDaily. ScienceDaily, 9 January 2009. <www.sciencedaily.com/releases/2009/01/090105175019.htm>.
Journal of Clinical Investigation. (2009, January 9). Nerve Cells In The Brain And Spinal Cord Sense Pain Caused By Physical Insult. ScienceDaily. Retrieved March 1, 2015 from www.sciencedaily.com/releases/2009/01/090105175019.htm
Journal of Clinical Investigation. "Nerve Cells In The Brain And Spinal Cord Sense Pain Caused By Physical Insult." ScienceDaily. www.sciencedaily.com/releases/2009/01/090105175019.htm (accessed March 1, 2015).

Share This


More From ScienceDaily



More Health & Medicine News

Sunday, March 1, 2015

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Could a $34 Smartphone Device Improve HIV Diagnosis in Africa?

Could a $34 Smartphone Device Improve HIV Diagnosis in Africa?

Reuters - Innovations Video Online (Feb. 27, 2015) A dongle that plugs into a Smartphone mimics a lab-based blood test for HIV and syphilis and can detect the diseases in 15 minutes, say researchers. Tara Cleary reports. Video provided by Reuters
Powered by NewsLook.com
Doctor Says Head Transplants Possible Within Two Years

Doctor Says Head Transplants Possible Within Two Years

Buzz60 (Feb. 27, 2015) An Italian doctor is saying he could stick someone&apos;s head onto someone else&apos;s body. Patrick Jones (@Patrick_E_Jones) reports. Video provided by Buzz60
Powered by NewsLook.com
How Your Dentist Could Help Screen You For Diabetes

How Your Dentist Could Help Screen You For Diabetes

Newsy (Feb. 27, 2015) A new study from researchers at New York University suggests dentists could soon use blood samples taken from patients&apos; mouths to test for diabetes. Video provided by Newsy
Powered by NewsLook.com
The Best Tips to Makeover Your Health

The Best Tips to Makeover Your Health

Buzz60 (Feb. 27, 2015) If you&apos;re looking to boost your health this season, there are a few quick and easy steps to prompt you for success. Krystin Goodwin (@Krystingoodwin) has the best tips to give your health a makeover this spring! Video provided by Buzz60
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:

Strange & Offbeat Stories


Health & Medicine

Mind & Brain

Living & Well

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