Diabetic polyneuropathy is associated with pathomorphological changes in human dorsal root ganglia: a study using 3T MR neurography
Diabetic neuropathy (DPN) is one of the most severe and yet most poorly understood complications of diabetes mellitus. In vivo imaging of dorsal root ganglia (DRG), a key structure for the understanding of DPN, has been restricted to animal studies. These have shown a correlation of decreased DRG vo...
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| Hauptverfasser: | , , , , , , , , , , , , , , , |
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
25 September 2020
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| In: |
Frontiers in neuroscience
Year: 2020, Jahrgang: 14 |
| ISSN: | 1662-453X |
| DOI: | 10.3389/fnins.2020.570744 |
| Online-Zugang: | Verlag, kostenfrei, Volltext: https://doi.org/10.3389/fnins.2020.570744 Verlag, kostenfrei, Volltext: https://www.frontiersin.org/articles/10.3389/fnins.2020.570744/full 
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| Verfasserangaben: | Johann M.E. Jende, Zoltan Kender, Christian Rother, Lucia Alvarez-Ramos, Jan B. Groener, Mirko Pham, Jakob Morgenstern, Dimitrios Oikonomou, Artur Hahn, Alexander Juerchott, Jennifer Kollmer, Sabine Heiland, Stefan Kopf, Peter P. Nawroth, Martin Bendszus and Felix T. Kurz |
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| 245 | 1 | 0 | |a Diabetic polyneuropathy is associated with pathomorphological changes in human dorsal root ganglia |b a study using 3T MR neurography |c Johann M.E. Jende, Zoltan Kender, Christian Rother, Lucia Alvarez-Ramos, Jan B. Groener, Mirko Pham, Jakob Morgenstern, Dimitrios Oikonomou, Artur Hahn, Alexander Juerchott, Jennifer Kollmer, Sabine Heiland, Stefan Kopf, Peter P. Nawroth, Martin Bendszus and Felix T. Kurz |
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| 520 | |a Diabetic neuropathy (DPN) is one of the most severe and yet most poorly understood complications of diabetes mellitus. In vivo imaging of dorsal root ganglia (DRG), a key structure for the understanding of DPN, has been restricted to animal studies. These have shown a correlation of decreased DRG volume with neuropathic symptom severity. Our objective was to investigate correlations of DRG morphology and signal characteristics at 3 Tesla (3T) magnetic resonance neurography (MRN) with clinical and serological data in diabetic patients with and without DPN. In this cross-sectional study, participants underwent 3T MRN of both L5 DRG using an isotropic 3D T2-weighted, fat-suppressed sequence with subsequent segmentation of DRG volume and analysis of normalized signal properties. Overall, 55 diabetes patients (669 years; 32 men; 30 with DPN) took part in this study. DRG volume was smaller in patients with severe DPN when compared to patients with mild or moderate DPN (134.721.86 vs. 170.149.22; p=0.040). In DPN patients, DRG volume was negatively correlated with the neuropathy disability score (r=-0.43; 95%CI=-0.66 to -0.14; p=0.02), a measure of neuropathy severity. DRG volume showed negative correlations with triglycerides (r=-0.40; 95%CI=-0.57 to -0.19; p=0.006), and LDL cholesterol (r=-0.33; 95%CI=-0.51 to -0.11; p=0.04). There was a strong positive correlation of normalized MR signal intensity (SI) with the neuropathy symptom score in the subgroup of patients with painful DPN (r=0.80; 95%CI=0.46 to 0.93; p=0.005). DRG SI was positively correlated with HbA1c levels (r=0.30; 95%CI=0.09 to 0.50; p=0.03) and the triglyceride/HDL ratio (r=0.40; 95%CI=0.19 to 0.57; p=0.007). In this first in vivo study, we found DRG morphological degeneration and signal increase in correlation with neuropathy severity. This elucidates the potential importance of MR-based DRG assessments in studying structural and functional changes in DPN. | ||
| 650 | 4 | |a Diabetic poly neuropathy (DPN) | |
| 650 | 4 | |a Dorsal root ganglia (DRG) | |
| 650 | 4 | |a Magnetic resonance neurography (MRN) | |
| 650 | 4 | |a neuropathic pain | |
| 650 | 4 | |a Peripheral Nervous System | |
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