Linked Life Data

20851518

Source:http://linkedlifedata.com/resource/pubmed/id/20851518

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SubjectPredicateObjectContext
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pubmed-article:20851518pubmed:dateCreated2010-11-3lld:pubmed
pubmed-article:20851518pubmed:abstractTextQuantitative sensory testing (QST) is commonly used to evaluate peripheral sensory function in neuropathic conditions. QST measures vary in repeated measurements of normal subjects but it is not known whether QST can reflect small changes in epidermal nerve fiber density (ENFd). This study evaluated QST measures (touch, mechanical pain, heat pain and innocuous cold sensations) for differences between genders and over time using ENFd as an objective-independent measure. QST was performed on the thighs of 36 healthy volunteers on four occasions between December and May. ENFd in skin biopsies was determined on three of those visits. Compared to men, women had a higher ENFd, a difference of 12.2 ENFs/mm. They also had lower tactile and innocuous cold thresholds, and detected mechanical pain (pinprick) at a higher frequency. Heat pain thresholds did not differ between genders. By the end of the 24-week study, men and women showed a small reduction (p<0.05) in the frequency of sharp mechanical pain evoked by pinprick whereas tactile and thermal thresholds showed no change. This coincided with a small decrease in ENFd, 4.18 ENFs/mm. Variation in measurements over time was large in a fraction of normal subjects. We conclude that most QST measures detect relatively large differences in epidermal innervation (12.2 ENFs/mm), but response to mechanical pain was the only sensory modality tested with the sensitivity to detect small changes in innervation (4.18 ENFs/mm). Since some individuals had large unsystematic variations, unexpected test results should therefore alert clinicians to test additional locations.lld:pubmed
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pubmed-article:20851518pubmed:authorpubmed-author:HodgesJames...lld:pubmed
pubmed-article:20851518pubmed:authorpubmed-author:SimoneDonald...lld:pubmed
pubmed-article:20851518pubmed:authorpubmed-author:KennedyWillia...lld:pubmed
pubmed-article:20851518pubmed:authorpubmed-author:Wendelschafer...lld:pubmed
pubmed-article:20851518pubmed:authorpubmed-author:SelimMona MMMlld:pubmed
pubmed-article:20851518pubmed:authorpubmed-author:VanhoveGeertr...lld:pubmed
pubmed-article:20851518pubmed:authorpubmed-author:FosterShawn...lld:pubmed
pubmed-article:20851518pubmed:copyrightInfoCopyright © 2010 International Association for the Study of Pain. Published by Elsevier B.V. All rights reserved.lld:pubmed
pubmed-article:20851518pubmed:issnTypeElectroniclld:pubmed
pubmed-article:20851518pubmed:volume151lld:pubmed
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pubmed-article:20851518pubmed:year2010lld:pubmed
pubmed-article:20851518pubmed:articleTitleVariation in quantitative sensory testing and epidermal nerve fiber density in repeated measurements.lld:pubmed
pubmed-article:20851518pubmed:affiliationDepartment of Neurology, University of Minnesota, Minneapolis, MN 55455, USA. selim002@umn.edulld:pubmed
pubmed-article:20851518pubmed:publicationTypeJournal Articlelld:pubmed
pubmed-article:20851518pubmed:publicationTypeResearch Support, Non-U.S. Gov'tlld:pubmed
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