Segawa Dystonia
An important variant form of dopa-responsive dystonia (DRD). DRD typically begins in childhood or adolescence with progressive difficulty in walking and, in some cases, with spasticity. DRD, by definition, can be successfully treated with dopa. In Segawa dystonia, the symptoms fluctuate during the day from

Medical dictionary. 2011.

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  • Dystonia, dopa-responsive (DRD) — A condition that typically begins in childhood or adolescence with progressive difficulty in walking and, in some cases, spasticity and can be successfully treated with drugs. Segawa dystonia is an important variant of DRD. In Segawa dystonia,… …   Medical dictionary

  • Dystonia, Segawa — An important variant form of dopa responsive dystonia (DRD). DRD typically begins in childhood or adolescence with progressive difficulty in walking and, in some cases, with spasticity. DRD, by definition, can be successfully treated with dopa.… …   Medical dictionary

  • Segawa syndrome — dopa responsive dystonia, particularly that due either to an autosomal dominant defect in GTP cyclohydrolase I or an autosomal recessive defect in tyrosine hydroxylase …   Medical dictionary

  • Dopa-responsive dystonia (DRD) — A condition that typically begins in childhood or adolescence with progressive difficulty in walking and, in some cases, spasticity and can be successfully treated with drugs. Segawa dystonia is an important variant of DRD. In Segawa dystonia,… …   Medical dictionary

  • Dopamine-responsive dystonia — Classification and external resources OMIM 600225 eMedicine neuro/168 Dopamine responsive dystonia (DRD), also known as hereditary progr …   Wikipedia

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  • Tyrosine hydroxylase — or tyrosine 3 monooxygenase is the enzyme responsible for catalyzing the conversion of the amino acid L tyrosine to dihydroxyphenylalanine (DOPA). DOPA is a precursor for dopamine which in turn is a precursor for norepinephrine (noradrenaline)… …   Wikipedia

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