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Text
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<a href="http://doi.org/10.1016/j.pain.2004.12.032" target="_blank" rel="noreferrer">http://doi.org/10.1016/j.pain.2004.12.032</a>
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Title
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Widespread pain in fibromyalgia is related to a deficit of endogenous pain inhibition
Publisher
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Pain
Date
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2005
Subject
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Female; Humans; Male; Adult; Middle Aged; Regression Analysis; Cross-Over Studies; Non-U.S. Gov't; Research Support; Comparative Study; Pain Measurement/methods; Cold/diagnostic use; Fibromyalgia/diagnosis/physiopathology; Neural Inhibition/physiology; Pain/diagnosis/physiopathology
Creator
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Julien N; Goffaux P; Arsenault P; Marchand S
Description
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A deficit of endogenous pain inhibitory systems has been suggested to contribute to some chronic pain conditions, one of them being fibromyalgia. The aim of the investigation was to test whether endogenous pain inhibitory systems were activated by a spatial summation procedure in 30 fibromyalgia, 30 chronic low back pain, and 30 healthy volunteers who participated in a cross-over trial (two sessions). Each session consisted of visual analog scale ratings of pain during the immersion of different surfaces of the arm in circulating noxious cold (12 degrees C) water. The arm was arbitrarily divided into eight segments from the fingertips to the shoulder. One session was ascending (from the fingertips to the shoulder) and the other was descending (from the shoulder to the fingertips); they included eight consecutive 2-min immersions separated by 5-min resting periods. For healthy and low back pain subjects, pain was perceived differently during the ascending and descending sessions (P=0.0001). The descending session resulted in lower pain intensity and unpleasantness. This lowering of the perception curve seems to be due to a full recruitment of inhibitory systems at the beginning of the descending session as opposed to a gradual recruitment during the ascending session. For fibromyalgia subjects, no significant differences were found between the increasing and decreasing sessions (P>0.05). These data support a deficit of endogenous pain inhibitory systems in fibromyalgia but not in chronic low back pain. The treatments proposed to fibromyalgia patients should aim at stimulating the activity of those endogenous systems.
2005
Identifier
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<a href="http://doi.org/10.1016/j.pain.2004.12.032" target="_blank" rel="noreferrer">10.1016/j.pain.2004.12.032</a>
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Article information provided for research and reference use only. PedPalASCNET does not hold any rights over the resource listed here. All rights are retained by the journal listed under publisher and/or the creator(s).
Type
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Journal Article
2005
Adult
Arsenault P
Backlog
Cold/diagnostic use
Comparative Study
Cross-Over Studies
Female
Fibromyalgia/diagnosis/physiopathology
Goffaux P
Humans
Journal Article
Julien N
Male
Marchand S
Middle Aged
Neural Inhibition/physiology
Non-U.S. Gov't
Pain
Pain Measurement/methods
Pain/diagnosis/physiopathology
Regression Analysis
Research Support