TY  - JOUR
AU  - Schmitz-Hübsch, T.
AU  - Lux, Silke
AU  - Bauer, P.
AU  - Brandt, A. U.
AU  - Schlapakow, E.
AU  - Greschus, S.
AU  - Scheel, M.
AU  - Gärtner, Hanna
AU  - Kirlangic, Mehmet Eylem
AU  - Gras, Vincent
AU  - Timmann, D.
AU  - Synofzik, M.
AU  - Giorgetti, Alejandro
AU  - Carloni, Paolo
AU  - Shah, N. J.
AU  - Schöls, L.
AU  - Kopp, U.
AU  - Bußenius, L.
AU  - Oberwahrenbrock, T.
AU  - Zimmermann, H.
AU  - Pfueller, C.
AU  - Kadas, E. M.
AU  - Rönnefarth, M.
AU  - Grosch, A. S.
AU  - Endres, M.
AU  - Amunts, Katrin
AU  - Friedemann, P.
AU  - Doss, S.
AU  - Minnerop, Martina
TI  - Spinocerebellar ataxia type 14: Refining clinico-genetic diagnosis in a rare adult-onset disorder
JO  - Annals of Clinical and Translational Neurology
VL  - 8
IS  - 4
SN  - 2328-9503
CY  - Chichester [u.a.]
PB  - Wiley
M1  - FZJ-2021-01213
SP  - 774-789
PY  - 2021
AB  - ObjectivesGenetic variant classification is a challenge in rare adult‐onset disorders as in SCA‐PRKCG (prior spinocerebellar ataxia type 14) with mostly private conventional mutations and nonspecific phenotype. We here propose a refined approach for clinicogenetic diagnosis by including protein modeling and provide for confirmed SCA‐PRKCG a comprehensive phenotype description from a German multi‐center cohort, including standardized 3D MR imaging.MethodsThis cross‐sectional study prospectively obtained neurological, neuropsychological, and brain imaging data in 33 PRKCG variant carriers. Protein modeling was added as a classification criterion in variants of uncertain significance (VUS).ResultsOur sample included 25 cases confirmed as SCA‐PRKCG (14 variants, thereof seven novel variants) and eight carriers of variants assigned as VUS (four variants) or benign/likely benign (two variants). Phenotype in SCA‐PRKCG included slowly progressive ataxia (onset at 4–50 years), preceded in some by early‐onset nonprogressive symptoms. Ataxia was often combined with action myoclonus, dystonia, or mild cognitive‐affective disturbance. Inspection of brain MRI revealed nonprogressive cerebellar atrophy. As a novel finding, a previously not described T2 hyperintense dentate nucleus was seen in all SCA‐PRKCG cases but in none of the controls.
LB  - PUB:(DE-HGF)16
C6  - 33739604
UR  - <Go to ISI:>//WOS:000631659200001
DO  - DOI:10.1002/acn3.51315
UR  - https://juser.fz-juelich.de/record/890805
ER  -