Social Links

Follow on Facebook Follow on TwitterFollow EiR on PinterestFollow EiR on Instagram

Xpert Access

×

Login To Get Involved!


Forgot your username?


Forgot your password?

×

Join Us At EiR Now!

DNRS Roof Banner

 



New DNRS 2.0 Available NOW! Improved via Research & Patient Feedback.

Universal AJAX Live Search

Search - Categories
Search - Contacts
Search - Content
Search - Newsfeeds
Search - Weblinks

Evidence of dysfunctional pain inhibition in Fibromyalgia reflected in rACC during provoked pain

 

 

 

 

Pain. 2009 Apr 30. [Epub ahead of print]

 

Evidence of dysfunctional pain inhibition in Fibromyalgia reflected in rACC during provoked pain.

 

Jensen KB, Kosek E, Petzke F, Carville S, Fransson P, Marcus H, Williams SC, Choy E, Giesecke T, Mainguy Y, Gracely R, Ingvar M. Stockholm Brain Institute, Osher Center for Integrative Medicine, Karolinska Institutet, Stockholm, Sweden.

 

 

Over the years, many have viewed Fibromyalgia syndrome (FMS) as a so-called "functional disorder" and patients have experienced a concomitant lack of interest and legitimacy from the medical profession. The symptoms have not been explained by peripheral mechanisms alone nor by specific central nervous system mechanisms. In this study, we objectively evaluated the cerebral response to individually calibrated pain provocations of a pain-free body region (thumbnail). The study comprised 16 female FMS patients and 16 individually age-matched controls. Brain activity was measured using functional magnetic resonance imaging (fMRI) during individually calibrated painful pressures representing 50mm on a visual analogue scale (VAS) ranging from 0 to 100mm. Patients exhibited higher sensitivity to pain provocation than controls as they required less pressure to evoke equal pain magnitudes (U(A)=48, p<.002). Despite lower pressures applied in patients at VAS 50mm, the fMRI-analysis revealed no difference in activity in brain regions relating to attention and affect or regions with sensory projections from the stimulated body area. However, in the primary link in the descending pain regulating system (the rostral anterior cingulate cortex) the patients failed to respond to pain provocation. The attenuated response to pain in this brain region is the first demonstration of a specific brain region where the impairment of pain inhibition in FMS patients is expressed. These results validate previous reports of dysfunctional endogenous pain inhibition in FMS and advance the understanding of the central pathophysiologic mechanisms, providing a new direction for the development of successful treatments in FMS.

 

PMID: 19410366 [PubMed - as supplied by publisher]

 

 

 

{mosgoogle}

 

{mos_sb_discuss:9}

 


 

Please Help Support EiR with a Positive Google Review!

Review 'The Environmental Illness Resource' (EiR) on Google

 

If you like EiR and / or enoyed this content; please help us keep going by leaving a Positive Google Review:
Review EiR on Google NOW!

P.S. This is entirely secure, we collect no data other than what is freely available from Google and you can remain anonymous!

 


Related Articles:

 

Mold Testing & Sanitizer:

 

 

 

 

ADVERTISEMENT

 

  • No comments found

Leave your comments

Post comment as a guest

0 Character restriction
Your text should be more than 25 characters
Your comments are subjected to administrator's moderation.
terms and condition.

Adsense Responsive BottomBanner

View the very BEST Environmental Illness Videos!

1. Your Health is Governed by Your Environment | Prof. BM Hegde | TEDx Talk

2. Demystifying Multiple Chemical Sensitivity

3. Social Determinants of Health - An Introduction