1. Articles from H. Brent Clark

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    1. Polarization-sensitive optical coherence tomography reveals gray matter and white matter atrophy in SCA1 mouse models

      Polarization-sensitive optical coherence tomography reveals gray matter and white matter atrophy in SCA1 mouse models

      Spinocerebellar ataxia type 1 (SCA1) is a fatal inherited neurodegenerative disease. In this study, we demonstrate the label-free optical imaging methodology that can detect, with a high degree of sensitivity, discrete areas of degeneration in the cerebellum of the SCA1 mouse models. We used ATXN1[82Q] and ATXN1[30Q]-D776 mice in which the transgene is directed only to Purkinje cells. Molecular layer, granular layer, and white matter regions are analyzed using the intrinsic contrasts provided by polarization-sensitive optical coherence tomography. Cerebellar atrophy in SCA1 mice occurred both in gray matter and white matter. While gray matter atrophy is obvious ...

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