Protein alterations in women with chronic widespread pain: An explorative proteomic study of the trapezius muscle
2015 (English)In: Scientific Reports, ISSN 2045-2322, E-ISSN 2045-2322, Vol. 5, no 11894Article in journal (Refereed) Published
Chronic widespread pain (CWP) has a high prevalence in the population and is associated with prominent negative individual and societal consequences. There is no clear consensus concerning the etiology behind CWP although alterations in the central processing of nociception maintained by peripheral nociceptive input has been suggested. Here, we use proteomics to study protein changes in trapezius muscle from 18 female patients diagnosed with CWP compared to 19 healthy female subjects. The 2-dimensional gel electrophoresis (2-DE) in combination with multivariate statistical analyses revealed 17 proteins to be differently expressed between the two groups. Proteins were identified by mass spectrometry. Many of the proteins are important enzymes in metabolic pathways like the glycolysis and gluconeogenesis. Other proteins are associated with muscle damage, muscle recovery, stress and inflammation. The altered expressed levels of these proteins suggest abnormalities and metabolic changes in the myalgic trapezius muscle in CWP. Taken together, this study gives further support that peripheral factors may be of importance in maintaining CWP.
Place, publisher, year, edition, pages
Nature Publishing Group: Open Access Journals - Option C / Nature Publishing Group , 2015. Vol. 5, no 11894
IdentifiersURN: urn:nbn:se:liu:diva-120343DOI: 10.1038/srep11894ISI: 000357448000003PubMedID: 26150212OAI: oai:DiVA.org:liu-120343DiVA: diva2:843899
Funding Agencies|Swedish Council for Working Life and Social Research [2010-0683, 2007-0760]; Swedish Research Council [2010-2893, K2015-99x-21874-05-4]; medical Research Council of Southeast Sweden [FORSS-159031]; Region Ostergotland [LIO-35923, SC-2013-00395-36]2015-07-312015-07-312016-04-25