Neurometabolite changes in patients with complex regional pain syndrome using magnetic resonance spectroscopy: A pilot study

Ye Ha Jung, Hyeonjin Kim, So Yeon Jeon, Jeong Min Kwon, Yong Chul Kim, Won Joon Lee, Dasom Lee, Jun Young Lee, Jee Youn Moon, Do Hyung Kang

Research output: Contribution to journalArticlepeer-review

7 Scopus citations

Abstract

The aim of this study was to investigate distinct neurometabolites in the right and left thalamus and insula of patients with complex regional pain syndrome (CRPS) compared with healthy controls using proton magnetic resonance spectroscopy. Levels of N-acetylaspartate (NAA), N-acetylaspartylglutamate (NAAG), myo-inositol (ml), glutamine (Gln), glycerophosphocholine (GPC), glutathione (GSH), and alanine (Ala) relative to total creatine (tCr) levels, including creatine and phosphocreatine, were determined in the right and left thalamus and insula in 12 patients with CRPS compared with 11 healthy controls using magnetic resonance spectroscopy. Levels of NAAG/tCr and Ala/tCr were higher in patients with CRPS than in controls in the left thalamus. NAAG/tCr, ml/tCr, and Gln/tCr levels were higher but NAA/tCr levels were lower in the right insula of patients with CRPS compared with controls. There were negative correlations between GSH/tCr and pain score (McGill Pain Questionnaire) in the left thalamus. These findings are paramount to understand and determine all aspects of the complex pathophysiological mechanisms that underlie CRPS, including involvement of the central and parasympathetic nervous systems as well as oxidative stress and antioxidants. Thus, the distinct metabolites presented herein may be essential to understand a strong diagnostic and prognostic potential for CRPS and to develop effective medical treatments.

Original languageEnglish
Pages (from-to)108-112
Number of pages5
JournalNeuroReport
Volume30
Issue number2
DOIs
StatePublished - 16 Jan 2019

Bibliographical note

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© 2018 Wolters Kluwer Health, Inc. All rights reserved.

Keywords

  • N-acetylaspartate
  • N-acetylaspartylglutamate
  • alanine
  • complex regional pain syndrome
  • glutamine
  • glutathione
  • glycerophosphocholine
  • magnetic resonance spectroscopy
  • myo-inositol

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