Rapid improvement in cortical neuronal integrity in amyotrophic lateral sclerosis detected by proton magnetic resonance spectroscopic imaging
Sanjay Kalraa b✉, Peter C. Taib c, Angela L. Genged e, Douglas Lorne Arnoldd e
- aDivision of Neurology, Department of Medicine, University of Alberta, 2E3.18 WMC 8440-112 Street, Edmonton, T6G 2B7, Alberta, Canada. sanjay.kalra@ualberta.ca
- bUniversity of Alberta
- cDivision of Neurology, Department of Medicine, University of Alberta, 2E3.18 WMC 8440-112 Street, Edmonton, T6G 2B7, Alberta, Canada
- dMontreal Neurological Institute and Hospital, McGill University, 3801 University Street, Montreal, H3A 2B4, Quebec, Canada
- eMcGill University
- ✉Corresponding author
Papers open inside SciRah from the original publisher or repository; SciRah never hosts them.
Abstract
Riluzole prolongs survival in amyotrophic lateral sclerosis. The temporal and spatial profile of its effect on the brain is unknown. We used proton magnetic resonance spectroscopic imaging to evaluate the neuronal response to 1 day of riluzole treatment in motor and non-motor regions of the brain. In 10 patients the N-acetylaspartate/total creatine (NAA/Cr) ratio increased in the precentral gyrus and supplementary motor area, but not in the post-central gyrus or parietal lobe. Improvement in cortical neuronal metabolic function in the motor cortex occurs early with riluzole treatment.
TL;DRImprovement in cortical neuronal metabolic function in the motor cortex occurs early with riluzole treatment, and in 10 patients the N-acetylaspartate/total creatine (NAA/Cr) ratio increased in the precentral gyrus and supplementary motor area, but not in the post- central gyrus or parietal lobe. (Semantic Scholar)