Neuropsychiatry and Neurorehabilitation Unit, Scientific Institute, IRCCS Eugenio Medea, Bosisio Parini, Italy.
Laboratory of Molecular Biology, Scientific Institute, IRCCS Eugenio Medea, Bosisio Parini, Italy.
Ann Clin Transl Neurol. 2021 Apr;8(4):956-963. doi: 10.1002/acn3.51345. Epub 2021 Mar 23.
In the present study, we describe two novel cases of SCA5 with early onset. The first one, carrying a novel heterozygous de novo missense mutation in SPTBN2 gene, showed a striking very severe cerebellar atrophy and reduction of volume of the pons at a very young age (16 months). The latter, carrying the first de novo intragenic deletion so far reported in SPTBN2 gene, showed a mild cerebellar atrophy involving the hemispheres and a later onset. In both cases, for the first time, a hyperintense signal of the dentate nuclei was observed.
在本研究中,我们描述了两例具有早发性的 SCA5 新病例。第一个病例携带 SPTBN2 基因的新型杂合性新生错义突变,在非常年幼时(16 个月)表现出显著的非常严重的小脑萎缩和脑桥体积减少。后者携带 SPTBN2 基因中迄今为止报道的首例新生内含子缺失,表现为轻度小脑萎缩,累及半球,发病较晚。在这两种情况下,首次观察到齿状核的高信号。