نتایج جستجو برای: cerebellar ataxias
تعداد نتایج: 26906 فیلتر نتایج به سال:
Cerebellar Purkinje cells (PCs) play a crucial role in motor functions and their progressive degeneration is closely associated with spinocerebellar ataxias. Although immunohistochemical (IHC) analysis can provide a valuable tool for understanding the pathophysiology of PC disorders, the method validation of IHC analysis with cerebellar tissue specimens is unclear. Here we present an optimized ...
OBJECTIVE To report on a novel neuronal target antigen in 3 patients with autoimmune cerebellar degeneration. METHODS Three patients with subacute to chronic cerebellar ataxia and controls underwent detailed clinical and neuropsychological assessment together with quantitative high-resolution structural MRI. Sera and CSF were subjected to comprehensive autoantibody screening by indirect immun...
INTRODUCTION Cerebellar ataxia with neuropathy and bilateral vestibular areflexia syndrome (CANVAS) is a recently described multisystem ataxia defined by the presence of cerebellar ataxia, bilateral vestibulopathy, and a somatosensory deficit. The characteristic clinical sign is an abnormal visually enhanced vestibuloocular reflex. The somatosensory deficit contributes to a significant level of...
Letter Mutations in genes involved in singlestrand break repair (SSBR) have been linked to hereditary cerebellar ataxias. Notably, Ataxia-oculomotor apraxia 1 (AOA1 (MIM: 2 08 920)), Spinocerebellar ataxia with axonal neuropathy 1 (SCAN1 (MIM: 6 07 250)) and Ataxia-oculomotor apraxia 4 (AOA4 (MIM: 616267616267616267)) are associated with mutations in APTX (MIM: 606350), TDP1 (MIM: 607198) and P...
Viral-vector mediated gene transfer to cerebellar Purkinje neurons in vivo is a promising avenue for gene therapy of cerebellar ataxias and for genetic manipulation in functional studies of animal models of cerebellar disease. Here, we report the results of experiments designed to identify efficient methods for viral transduction of adult murine Purkinje neurons in vivo. For these analyses, sev...
Non-progressive cerebellar ataxias are a rare group of disorders that comprise approximately 10% of static infantile encephalopathies. We report the identification of mutations in PMPCA in 17 patients from four families affected with cerebellar ataxia, including the large Lebanese family previously described with autosomal recessive cerebellar ataxia and short stature of Norman type and localiz...
BACKGROUND Friedreich ataxia (FA), the most common hereditary ataxia, is caused by pathological expansion of GAA repeats in the first intron of the X25 gene on chromosome 9. Since the discovery of the gene, atypical features are increasingly recognized in individuals with FA, and up to 25% of patients with recessive or sporadic ataxia do not fulfill the Harding or Quebec Cooperative Study on Fr...
IMPORTANCE Epidemiological data on hereditary cerebellar ataxia (HCA) and hereditary spastic paraplegia (HSP) are scarce. OBJECTIVE To present the prevalence and distribution of HCA and HSP in Portugal. DESIGN AND SETTING Population-based, nationwide, systematic survey, from January 1, 1994, through April 15, 2004, in Portugal. PARTICIPANTS Multiple sources of information were used (revie...
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