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1篇 您的检索式:作者名="Karin M.Danzer"
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1Longitudinal diffusion tensor magnetic resonance imaging analysis at the cohort level reveals disturbed cortical and callosal microstructure with spared corticospinal tract in the TDP-43^(G298S) ALS mouse model显示文摘Background:In vivo diffusion tensor imaging(DTI)of the mouse brain was used to identify TDP-43 associated alterations in a mouse model for amyotrophic lateral sclerosis(ALS).Methods:Ten mice with TDP-43^(G298S) overexpression under control of the Thy1.2 promoter and 10 wild type(wt)underwent longitudinal DTI scans at 11.7 T,including one baseline and one follow-up scan with an interval of about 5months.Whole brain-based spatial statistics(WBSS)of DTI-based parameter maps was used to identify longitudinal alterations of TDP-43^(G298S) mice compared to wt at the cohort level.Results were supplemented by tractwise fractional anisotropy statistics(TFAS)and histological evaluation of motor cortex for signs of neuronal loss.Results:Alterations at the cohort level in TDP-43^(G298S) mice were observed cross-sectionally and longitudinally in motor areas M1/M2 and in transcallosal fibers but not in the corticospinal tract.Neuronal loss in layer V of motor cortex was detected in TDP-43^(G298S) at the later(but not at the earlier)timepoint compared to wt.Conclusion:DTI mapping of TDP-43^(G298S) mice demonstrated progression in motor areas M1/M2.WBSS and TFAS are useful techniques to localize TDP-43^(G298S) associated alterations over time in this ALS mouse model,as a biological marker.Hans-Peter Müller David Brenner Francesco Roselli Diana Wiesner Alireza Abaei Martin Gorges Karin M.Danzer Albert C.Ludolph William Tsao Philip C.Wong Volker Rasche Jochen H.Weishaupt Jan Kassubek 2019Translational Neurodegeneration2019,8,1:1
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