نتایج جستجو برای: cerebellar ataxias

تعداد نتایج: 26906  

2012
Hok Khim Fam Miraj K. Chowdhury Cornelius F. Boerkoel

Spinocerebellar ataxias (SCAs) are a group of progressive and irreversible neurological diseases affecting gait and movement coordination. Many result from cerebellar degeneration or the impairment of a portion of the neuroaxis that contributes to cerebellar inflow or outflow (Embirucu et al., 2009). In the cerebellum, the dysfunction and death of Purkinje cells, granule cells or interneurons c...

Journal: :genetics in the 3rd millennium 0
غلام علی شهیدی gholam ali shahidi assist prof of neurology, rasul akram hospital, iran university of medical sciences, tehran, iran محمد روحانی mohammad rohani

the hereditary ataxias comprise a wide spectrum of heterogeneous disorders that share three features: ataxia, involvement of cerebellum or its connections, and heritability. in many hereditary ataxias, the underlying gene mutations have been identified. knowledge of the causative mutations allows a rational classification of hereditary ataxias as autosomal recessive, autosomal dominant or mater...

Journal: :JAMA neurology 2014
Brent L Fogel Hane Lee Joshua L Deignan Samuel P Strom Sibel Kantarci Xizhe Wang Fabiola Quintero-Rivera Eric Vilain Wayne W Grody Susan Perlman Daniel H Geschwind Stanley F Nelson

IMPORTANCE Cerebellar ataxias are a diverse collection of neurologic disorders with causes ranging from common acquired etiologies to rare genetic conditions. Numerous genetic disorders have been associated with chronic progressive ataxia and this consequently presents a diagnostic challenge for the clinician regarding how to approach and prioritize genetic testing in patients with such clinica...

Journal: :AJNR. American journal of neuroradiology 2016
A Klaes E Reckziegel M C Franca T J R Rezende L M Vedolin L B Jardim J A Saute

BACKGROUND AND PURPOSE Polyglutamine expansion spinocerebellar ataxias are autosomal dominant slowly progressive neurodegenerative diseases with no current treatment. MR imaging is the best-studied surrogate biomarker candidate for polyglutamine expansion spinocerebellar ataxias, though with conflicting results. We aimed to review quantitative central nervous system MR imaging technique finding...

2012
Luis Velázquez-Pérez Roberto Rodríguez-Labrada Hans-Joachim Freund Georg Auburger

The autosomal dominant cerebellar ataxias (ADCA) are a clinically, pathologically and genetically heterogeneous group of neurodegenerative disorders caused by degeneration of cerebellum and its afferent and efferent connections. The degenerative process may additionally involves the pontomedullar systems, pyramidal tracts, basal ganglia, cerebral cortex, peripheral nerves (ADCA I) and the retin...

Journal: :Journal of neurology, neurosurgery, and psychiatry 1983
M Daras A J Tuchman S David

Previous reports have shown the association between familial spastic paraplegia and hypopigmentation of the skin. A family is reported in which three siblings presented with progressive spastic paraparesis and cerebellar ataxia. All the siblings had large hyperpigmented naevi of the lower extremities while none of the unaffected members had a skin lesion. A definite association appears to exist...

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