Abstract
Several genes have been mapped in families or in sporadic cases of dystonia. TOR1-A (DYT1) gene was linked to isolated dystonia. To associate clinical information of patients with dystonia with the TOR1-A gene mutations. Eighty-eight patients with dystonia in cervical area (focal, segmental, multifocal and generalized) were recruited at Movement Disorders Clinic of Hospital de Clínicas of the Federal University of Paraná between June of 2008 and June of 2009. They were submitted to the clinical evaluation. DNA was extract from blood and submitted at analysis to TOR1-A mutations by PCR according standard protocols. Two patients had c.907GAGdel mutation on TOR1-A gene. These patients, with familial history of dystonia, started his symptoms by legs and had secondary generalization. We can suggest that analysis for TOR1-A mutations should be performed only in patients with early onset, generalized and familial dystonia.
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