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Published in: Molecular Pain 1/2014

Open Access 01-12-2014 | Research

Higher serum S100B and BDNF levels are correlated with a lower pressure-pain threshold in fibromyalgia

Authors: Simone Azevedo Zanette, Jairo Alberto Dussan-Sarria, Andressa Souza, Alicia Deitos, Iraci Lucena Silva Torres, Wolnei Caumo

Published in: Molecular Pain | Issue 1/2014

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Abstract

Background

Fibromyalgia (FM) is conceptualized as a central sensitization (CS) condition, that presents high serum brain-derived neurotrophic factor (BDNF) and neuroglia activation. Although the S100B protein regulates neuroglia functions, it has been traditionally used as a proxy of central nervous system damage. However, neither BDNF nor S100B association with the clinical picture of FM has been elucidated. To explore their association with the pressure-pain threshold (PPT) in FM, we performed a cross-sectional study, including 56 females with confirmed FM aged 18–65 years. Linear regression models were used to adjust for potential confounding factors between serum BDNF, S100B and PPT.

Results

Serum BDNF and S100B were correlated (Spearman’s Rho = 0.29). Serum BDNF (log) and S100B (log) were correlated with the PPT (log) (Partial η2 = 0.129, P = 0.012 for the BDNF (log), and Partial η2 = 0.105, P = 0.025 for the S100B (log)). Serum BDNF (log) was inversely associated with PPT (log) (β = -1.01, SE = 0.41), age (β = -0.02, SE = 0.15) and obsessive compulsive disorder (β = -0.36, SE = 0.15), while serum S100B (log) was inversely associated with PPT (log) (β = -1.38, SE = 0.50), only.

Conclusions

Both neuroglia key mediators in the CS process were inversely correlated with the PPT. Serum assessment of BDNF and S100B deserve further study to determine its potential as a proxy for the CS spectrum in FM.
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Metadata
Title
Higher serum S100B and BDNF levels are correlated with a lower pressure-pain threshold in fibromyalgia
Authors
Simone Azevedo Zanette
Jairo Alberto Dussan-Sarria
Andressa Souza
Alicia Deitos
Iraci Lucena Silva Torres
Wolnei Caumo
Publication date
01-12-2014
Publisher
BioMed Central
Published in
Molecular Pain / Issue 1/2014
Electronic ISSN: 1744-8069
DOI
https://doi.org/10.1186/1744-8069-10-46

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