An exploratory pilot investigation of neurosteroids and self-reported pain in female Iraq/Afghanistan-era Veterans.

Published

Journal Article

Female Veterans are the most rapidly growing segment of new users of the Veterans Health Administration (VHA), and a significant proportion of female Veterans receiving treatment from VHA primary care providers report persistent pain symptoms. Currently, available data characterizing the neurobiological underpinnings of pain disorders are limited. Preclinical data suggest that neurosteroids may be involved in the modulation of pain symptoms, potentially via actions at gamma-aminobutyric acid (GABA) and N-methyl-D-aspartate (NMDA) receptors. Dehydroepiandrosterone (DHEA) and dehydroepiandrosterone sulfate (DHEAS) are neurosteroids that modulate inhibitory GABA receptors and excitatory NMDA receptors, producing complex neuronal effects. Emerging evidence from male Iraq/Afghanistan-era Veterans suggests that reductions in neurosteroid levels are associated with increased pain symptoms and that neurosteroids may be promising biomarker candidates. The current exploratory study thus examined associations between self-reported pain symptoms in 403 female Iraq/Afghanistan-era Veterans and serum DHEAS and DHEA levels. Serum DHEAS levels were inversely correlated with low back pain in female Veterans (Spearman r = -0.103; p = 0.04). Nonparametric analyses indicate that female Veterans reporting moderate/extreme low back pain demonstrated significantly lower DHEAS levels than those reporting no/little low back pain (|Z| = 2.60; p = 0.009). These preliminary findings support a role for DHEAS in pain physiology of low back pain and the rationale for neurosteroid therapeutics in pain analgesia.

Full Text

Duke Authors

Cited Authors

  • Naylor, JC; Kilts, JD; Strauss, JL; Szabo, ST; Dunn, CE; Wagner, HR; Hamer, RM; Shampine, LJ; Zanga, JR; Marx, CE; Department of Veterans Affairs Mid-Atlantic Mental Illness Research, Education, and Clinical Center Workgroup,

Published Date

  • January 2016

Published In

Volume / Issue

  • 53 / 4

Start / End Page

  • 499 - 510

PubMed ID

  • 27533747

Pubmed Central ID

  • 27533747

Electronic International Standard Serial Number (EISSN)

  • 1938-1352

International Standard Serial Number (ISSN)

  • 0748-7711

Digital Object Identifier (DOI)

  • 10.1682/jrrd.2014.11.0294

Language

  • eng