Heterozygosity for neuronal ceroid lipofuscinosis predisposes to bipolar disorder

Objective: Bipolar disorder is a heritable chronic mental disorder that causes psychosocial impairment through depressive/manic episodes. Familial transmission of bipolar disorder does not follow simple Mendelian patterns of inheritance. The aim of this study was to describe a large family with 12 members affected by bipolar disorder. Whole-exome sequencing was performed for eight members, three of whom were diagnosed with bipolar disorder, and another reported as “borderline.” Methods: Whole-exome sequencing data allowed us to select variants that the affected members had in common, incl...

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