Academic Journal
Brain Iron and Metabolic Abnormalities in C19orf12 Mutation Carriers: A 7.0 Tesla MRI Study in Mitochondrial Membrane Protein–Associated Neurodegeneration
| العنوان: | Brain Iron and Metabolic Abnormalities in C19orf12 Mutation Carriers: A 7.0 Tesla MRI Study in Mitochondrial Membrane Protein–Associated Neurodegeneration |
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| المؤلفون: | Dusek, Petr, Mekle, Ralf, Skowronska, Marta, Acosta‐Cabronero, Julio, Huelnhagen, Till, Robinson, Simon Daniel, Schubert, Florian, Deschauer, Marcus, Els, Antje, Ittermann, Bernd, Schottmann, Gudrun, Madai, Vince I., Paul, Friedemann, Klopstock, Thomas, Kmiec, Tomasz, Niendorf, Thoralf, Wuerfel, Jens, Schneider, Susanne A. |
| المساهمون: | Else Kröner-Fresenius-Stiftung, European Commission, Eva Luise und Horst Köhler Stiftung |
| المصدر: | Movement Disorders ; volume 35, issue 1, page 142-150 ; ISSN 0885-3185 1531-8257 |
| بيانات النشر: | Wiley |
| سنة النشر: | 2019 |
| المجموعة: | Wiley Online Library (Open Access Articles via Crossref) |
| الوصف: | Background Mitochondrial membrane protein‐associated neurodegeneration is an autosomal‐recessive disorder caused by C19orf12 mutations and characterized by iron deposits in the basal ganglia. Objectives The aim of this study was to quantify iron concentrations in deep gray matter structures using quantitative susceptibility mapping MRI and to characterize metabolic abnormalities in the pyramidal pathway using 1 H MR spectroscopy in clinically manifesting membrane protein‐associated neurodegeneration patients and asymptomatic C19orf12 gene mutation heterozygous carriers. Methods We present data of 4 clinically affected membrane protein‐associated neurodegeneration patients (mean age: 21.0 ± 2.9 years) and 9 heterozygous gene mutation carriers (mean age: 50.4 ± 9.8 years), compared to age‐matched healthy controls. MRI assessments were performed on a 7.0 Tesla whole‐body system, consisting of whole‐brain gradient‐echo scans and short echo time, single‐volume MR spectroscopy in the white matter of the precentral/postcentral gyrus. Quantitative susceptibility mapping, a surrogate marker for iron concentration, was performed using a state‐of‐the‐art multiscale dipole inversion approach with focus on the globus pallidus, thalamus, putamen, caudate nucleus, and SN. Results and Conclusion In membrane protein‐associated neurodegeneration patients, magnetic susceptibilities were 2 to 3 times higher in the globus pallidus ( P = 0.02) and SN ( P = 0.02) compared to controls. In addition, significantly higher magnetic susceptibility was observed in the caudate nucleus ( P = 0.02). Non‐manifesting heterozygous mutation carriers exhibited significantly increased magnetic susceptibility (relative to controls) in the putamen ( P = 0.003) and caudate nucleus ( P = 0.001), which may be an endophenotypic marker of genetic heterozygosity. MR spectroscopy revealed significantly increased levels of glutamate, taurine, and the combined concentration of glutamate and glutamine in membrane protein‐associated neurodegeneration, ... |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| DOI: | 10.1002/mds.27827 |
| الاتاحة: | http://dx.doi.org/10.1002/mds.27827 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fmds.27827 https://onlinelibrary.wiley.com/doi/pdf/10.1002/mds.27827 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/mds.27827 |
| Rights: | http://creativecommons.org/licenses/by/4.0/ |
| رقم الانضمام: | edsbas.B344A56F |
| قاعدة البيانات: | BASE |
| DOI: | 10.1002/mds.27827 |
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