Cited by 37Metabolism and Genetic DisordersLysosomal Storage Disorders ResearchAdvanced MRI Techniques and Applications

Seven-Tesla proton magnetic resonance spectroscopic imaging in adult X-linked adrenoleukodystrophy

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Ratai, Eva, Kok, Trina, Wiggins, Christopher, Wiggins, Graham, Grant, Ellen, Gagoski, Borjan, O’Neill, Gilmore, Adalsteinsson, Elfar +1 more·2008·Archives of Neurology

Abstract

BACKGROUND: Adults with X-linked adrenoleukodystrophy (X-ALD) remain at risk for progressive neurological deterioration. Phenotypes vary in their pathology, ranging from axonal degeneration to inflammatory demyelination. The severity of symptoms is poorly explained by conventional imaging. OBJECTIVE: To test the hypothesis that neurochemistry in normal-appearing brains differs in adult phenotypes of X-ALD and that neurochemical changes correlate with the severity of symptoms. PATIENTS AND METHODS: Using a 7-Tesla scanner, we performed structural and proton magnetic resonance spectroscopic imaging in 13 adult patients with X-ALD: 4 patients with adult cerebral ALD, 5 patients with adrenomyeloneuropathy (AMN), and 4 female heterozygotes. Nine healthy controls were included. RESULTS: Among adult X-ALD phenotypes, the myo-inositol to creatine ratio was 46% higher and the choline to creatine ratio was 21% higher in normal-appearing white matter of those with adult cerebral ALD compared with those with AMN (P < .05). Both N-acetylaspartate to creatine (P = .03) and glutamate to creatine (P = .04) ratios were lower in AMN patients than in controls. There were no significant differences between patients with AMN and female heterozygotes. In the cortex, patients with adult cerebral ALD had lower N-acetylaspartate to creatine ratios compared with female heterozygotes and controls (P = .02). The global myo-inositol to creatine ratio demonstrated a significant association with Expanded Disability Status Scale score (Spearman rho = 0.66, P = .04). CONCLUSIONS: Seven-Tesla proton magnetic resonance spectroscopic imaging reveals differences in the neurochemistry of adult cerebral ALD but cannot distinguish AMN patients from female heterozygotes. Myo-inositol to creatine ratio correlates with the severity of the symptoms and may be a meaningful biomarker in adult X-ALD.

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Authors
Ratai, E., Kok, T., Wiggins, C., Wiggins, G., Grant, E., Gagoski, B., O’Neill, G., Adalsteinsson, E., & Eichler, F.
Affiliations
  • Massachusetts General Hospital (US)
  • Massachusetts Institute of Technology (US)
  • Harvard University (US)
Venue
Archives of Neurology
Published
2008-11-10
Volume
65
Issue
11
Pages
1488
ISSN
0003-9942 (ISSN-L)
OpenAlex
W1986041974
Cited by
37
References
26
Citations by year
2021: 4 · 2018: 1 · 2017: 3 · 2016: 7 · 2015: 4 · 2014: 2 · 2013: 2 · 2012: 4
FWCI
2.18
Type
journal article
Language
en
Open access
Locations
  • Archives of Neurology (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • National Institute of Neurological Disorders and Stroke (K08NS052550, R01NS050041, R21NS059331)
  • National Center for Research Resources (P41RR014075)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Clinical Biochemistry › Metabolism and Genetic Disorders
  • Health Sciences › Medicine › Physiology › Lysosomal Storage Disorders Research
  • Health Sciences › Medicine › Radiology, Nuclear Medicine and Imaging › Advanced MRI Techniques and Applications
Keywords
X-linked adrenoleukodystrophy, adrenomyeloneuropathy, proton magnetic resonance spectroscopic imaging, 7T MRI, choline/creatine ratio, normal-appearing white matter, neurochemical markers, Expanded Disability Status Scale, disease severity, female heterozygotes, demyelination
MeSH terms
Adrenoleukodystrophy, Adult, Aged, Brain, Choline, Creatine, Disability Evaluation, Fatty Acids, Female, Heterozygote, Humans, Inositol, Male, Middle Aged, Magnetic Resonance Spectroscopy, Periaqueductal Gray, Phenotype, Severity of Illness Index, Sex Factors, Young Adult

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