|Title||Exome sequencing revealed PMM2 gene mutations in a French-Canadian family with congenital atrophy of the cerebellum.|
|Publication Type||Journal Article|
|Year of Publication||2014|
|Authors||Noreau, A, Beauchemin, P, Dionne-Laporte, A, Dion, PA, Rouleau, GA, Dupré, N|
|Corporate Authors||FORGE Canada|
Two affected and one unaffected siblings from a French-Canadian family were evaluated in our neurogenetic clinic. The oldest brother had intentional and postural hand tremor while his youngest sister presented mild ataxia, a similar hand tremor and global developmental delay. Brain MRIs of the two affected family members further revealed a significant cerebellar atrophy. For this study we conducted a whole exome sequencing (WES) investigation using genomic DNA prepared from the affected brother and sister, alongside DNA prepared from their unaffected mother, and identified two mutations previously reported to cause a rare disorder known as Congenital Disorder of Glycosylation, type Ia (CDG1A) (OMIM #212065). This study emphasizes how the diagnosis of patients presenting a mild tremor phenotype associated with cerebellar atrophy may benefit from WES in establishing genetic defects associated with their conditions.
|Alternate Journal||Cerebellum Ataxias|
|PubMed Central ID||PMC4552392|