A 5-month-old boy developed a large-amplitude, horizontal pendular flutterlike oscillation of the eyes, when placed in the supine position. Magnetic resonance imaging (MRI) 1 month earlier had shown isolated thickening of the optic nerves and chiasm without other central nervous system signal abnormalities. Repeat MRI at 5½ months of age showed a constellation of central nervous system signal abnormalities suggestive of Krabbe disease. The diagnosis was confirmed with serum enzymatic and genetic testing. This case demonstrates that positional ocular flutter can be a presenting sign of Krabbe disease and reinforces the observation that isolated thickening of the anterior visual pathways can antedate other central nervous system abnormalities on MRI.
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http://dx.doi.org/10.1016/j.jaapos.2011.05.024 | DOI Listing |
Sci Rep
December 2024
Department of Biotechnical and Clinical Laboratory Sciences, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, Buffalo, NY, 14214, USA.
Lipocalin-2 (LCN2) is an acute-phase secretory molecule significantly upregulated in various neuroinflammatory and demyelinating conditions. Krabbe disease (KD) is a neurodegenerative lysosomal disorder caused by a galactosylceramidase (GALC) deficiency, accumulating cytotoxic psychosine in nervous systems, and subsequent neuroinflammation. Here, we show that LCN2 is highly overexpressed in GALC-deficient astrocytes.
View Article and Find Full Text PDFMol Ther Nucleic Acids
December 2024
Department of Therapeutics for Multiple System Atrophy, Graduate School of Medicine, Kyoto University, Kyoto, Japan.
Despite the wide range of applications of mRNA therapies, major difficulties exist in the efficient delivery of mRNA into oligodendrocytes, a type of glial cell in the brain. Commonly used viral vectors are not efficient in transforming oligodendrocytes. In this study, we introduced mRNAs into oligodendrocytes with high efficiency and specificity using LUNAR lipid nanoparticles.
View Article and Find Full Text PDFPLoS One
December 2024
Departments of Biochemistry and Neurology, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, Buffalo, New York, United States of America.
Eur J Ageing
November 2024
Department of Epidemiology, University Medical Center Groningen, University of Groningen, PO Box 30.001 (FA40), 9700 RB, Groningen, the Netherlands.
Background: Multimorbidity is linked to poor quality of life, and increased healthcare costs, and multimorbidity risk is potentially mitigated by a healthy lifestyle. This study evaluated the individual and joint contributions of an extensive set of lifestyle factors to the development of multimorbidity.
Methods: A prospective study of 133,719 adults (age 45.
Cells
November 2024
Department of Neurology, MacKay Children's Hospital, Taipei 10449, Taiwan.
Leukodystrophies represent a heterogeneous group of disorders characterized by specific genetic mutations, metabolic abnormalities, and degeneration of white matter in the central nervous system. These disorders are classified into several categories, with X-linked adrenoleukodystrophy (X-ALD), metachromatic leukodystrophy (MLD), and globoid cell leukodystrophy (GLD) being the most prevalent demyelinating leukodystrophies in pediatric populations. Maintaining proteostasis, which is critical for normal cellular function, relies fundamentally on the ubiquitin-proteasome system (UPS) and autophagy for the degradation of misfolded and damaged proteins.
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