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Updated: Jul 16, 2026
08:36
Sublimation of DAN Matrix for the Detection and Visualization of Gangliosides in Rat Brain Tissue for MALDI Imaging Mass Spectrometry
Published on: March 23, 2017
Serial 1H-MRS in GM2 gangliosidoses
Mitra Assadi1, Susan Baseman, Christopher Janson
1Division of Neurology, University of Medicine and Dentistry of New Jersey, 3 Cooper Plaza, Suite 320, Camden, NJ 08103, USA. Assadi-Mitra@cooperhealth.edu
European Journal of Pediatrics
|March 28, 2007
Summary
GM2 gangliosidoses, a neuronal storage disorder, show progressive brain inflammation and neuronal loss. Proton magnetic resonance spectroscopy (1H-MRS) reveals elevated myo-inositol (mI) and declining N-acetyl aspartate (NAA) in patients.
Area of Science:
- Neuroscience
- Biochemistry
- Medical Imaging
Background:
- GM2 gangliosidoses are inherited lysosomal storage disorders resulting from hexosaminidase A deficiency.
- These conditions lead to progressive neurological decline and severe encephalopathy.
Observation:
- Proton magnetic resonance spectroscopy (1H-MRS) was utilized to assess brain metabolite changes in two patients with GM2 gangliosidoses.
- Key metabolites measured included N-acetyl aspartate+N-acetyl aspartate glutamate (NAA), myo-inositol (mI), choline (Cho), and creatine (Cr).
- Metabolite ratios (NAA/Cr, mI/Cr, Cho/Cr) were analyzed in four regions of interest (ROI).
Findings:
- Patients exhibited a progressive increase in the mI/Cr ratio across most ROIs, indicating significant brain inflammation and gliosis.
- A decline in the NAA/Cr ratio was observed in both patients, suggesting neuronal loss and compromised neuronal integrity.
- Statistical analysis confirmed significantly elevated mI levels compared to age-matched controls.
Implications:
- 1H-MRS demonstrates potential as a valuable tool for monitoring disease progression in GM2 gangliosidoses.
- Elevated mI levels may serve as a sensitive biomarker for neuroinflammation in these disorders.
- 1H-MRS could aid in evaluating therapeutic responses in patients with GM2 gangliosidoses.
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