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

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

Molecular pain (2014-07-10)
Simone Azevedo Zanette, Jairo Alberto Dussan-Sarria, Andressa Souza, Alicia Deitos, Iraci Lucena Silva Torres, Wolnei Caumo
ABSTRACT

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. 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. 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.

MATERIALS
Product Number
Brand
Product Description

Sigma-Aldrich
ChemiKine Brain Derived Neurotrophic Factor, Sandwich ELISA, This ChemiKine Brain Derived Neurotrophic Factor, Sandwich ELISA is used to measure & quantify BDNF levels in Neuroscience research.