1H MRSI comparison of white matter and lesions in primary progressive and relapsing-remitting MS

J. Suhy, W. D. Rooney, D. E. Goodkin, A. A. Capizzano, B. J. Soher, A. A. Maudsley, E. Waubant, P. B. Andersson, M. W. Weiner

Research output: Contribution to journalArticle

81 Scopus citations

Abstract

Objective: To compare brain metabolite levels in patients with primary progressive (PP) and relapsing remitting (RR) MS and controls. Hypotheses: (1) creatine (Cr), a putative marker of gliosis, is elevated and N-acetylaspartate (NAA), a putative marker of axonal density and functional integrity, is reduced in PPMS lesions and normal appearing white matter (NAWM) compared to control white matter; (2) The pattern of metabolite change in PPMS is different than in RRMS. Methods: MRI and proton magnetic resonance spectroscopic imaging (1H MRSI) were collected from 15 PPMS patients, 13 RRMS patients, and 20 controls. Results: Cr was increased in PPMS NAWM compared to controls (P=0.035), and compared to RRMS NAWM (P=0.038). Cr was increased in focal MRI lesions from PPMS compared to lesions from RRMS (P=0.044) and compared to control white matter (P=0.041). NAA was similarly reduced in PPMS and RRMS NAWM compared to control. NAA was similarly reduced in PPMS and RRMS lesions, compared to control white matter. Conclusions: Creatine is higher in PPMS than RRMS NAWM and focal lesions. This observation is consistent with the notion that progressive disability in PPMS reflects increased gliosis and axonal loss whereas disability in RRMS reflects the cumulative effects of acute inflammatory lesions and axonal loss.

Original languageEnglish (US)
Pages (from-to)148-155
Number of pages8
JournalMultiple Sclerosis
Volume6
Issue number3
DOIs
StatePublished - Jun 2000

Keywords

  • Magnetic resonance spectroscopy
  • Primary progressive multiple sclerosis

ASJC Scopus subject areas

  • Clinical Neurology

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    Suhy, J., Rooney, W. D., Goodkin, D. E., Capizzano, A. A., Soher, B. J., Maudsley, A. A., Waubant, E., Andersson, P. B., & Weiner, M. W. (2000). 1H MRSI comparison of white matter and lesions in primary progressive and relapsing-remitting MS. Multiple Sclerosis, 6(3), 148-155. https://doi.org/10.1191/135245800701566007