| A complex form of young-onset Parkinson disease that manifests with pyramidal signs, eye movement abnormalities, psychiatric manifestations (depression, anxiety, drug-induced psychosis, and impulse control disorders), intellectual disability, and other neurological symptoms (such as ataxia and epilepsy) along with classical parkinsonian symptoms. To date, only six families have been reported. Mutations in the genes ATP13A2 (1p36), PLA2G6 (22q13.1), FBXO7 (22q12.3), DNAJC6 (1p31.3), SPG11 (15q13-q15), SPG15 (14q24.1) and SYNJ1 (21q22.2) are associated with this disease. Usually occurs in an autosomal recessive manner however, sporadic cases have also been reported and the majority of these cases are born from consanguineous parents. |
