The cerebellum is implicated in maintaining the saccadic subsystem efficient for vision by minimizing movement inaccuracy and by learning from endpoint errors. This ability is often disrupted in degenerative cerebellar diseases, as demonstrated by saccade kinetic abnormalities. The study of saccades in these patients may therefore provide insights into the neural substrate underlying saccadic m...

Cerebellar ataxias with autosomal dominant transmission are rare, but identification of the associated genes has provided insight into the mechanisms that could underlie other forms of genetic or non-genetic ataxias. In many instances, the phenotype is not restricted to cerebellar dysfunction but includes complex multisystemic neurological deficits. The designation of the loci, SCA for spinocer...

The relative frequency of different autosomal dominant cerebellar ataxias, commonly referred to as spinocerebellar ataxias (SCAs), varies considerably among populations of different ethnic origin. No data exist at present on the frequency of different SCAs in the Greek population. In the present study we investigated the presence of triplet repeat expansion SCAs (SCA1, SCA2, SCA3, SCA6, SCA7, S...

Spinocerebellar ataxias (SCAs) are a rapidly expanding group of inherited disorders aff e c t i n g primarily or exclusively the cerebellar system. The clinical manifestations reflect the involvement of the cerebellum and its connections, and include dysfunction of the coordination and syne rgy of the trunk and lower limbs during deambulation (gait ataxia), of the upper limbs during voluntary m...

The spinocerebellar ataxias (SCA) are a group of autosomal dominantly inherited ataxias that are clinically characterised by progressive ataxia. Until now, 13 genetically distinct SCA subtypes have been identified. In 5 of these disorders (SCA1, SCA2, SCA3, SCA6, SCA7), the mutation is a translated, expanded CAG repeat. SCA8 is caused by a CTG expansion in the 3 untranslated region, SCA10 by an...

The autosomal dominant cerebellar ataxias (ADCAs) are a heterogeneous group of neurodegenerative disorders characterised by progressive cerebellar dysfunction in combination with various associated features. Since 1993, ADCAs have been increasingly characterised in terms of their genetic mutation and are currently referred to as spinocerebellar ataxias (SCAs). The discovery of genetic abnormali...

BACKGROUND Cerebellar hypoplasia (CH) is a rare malformation caused by various etiologies, usually manifesting clinically as nonprogressive cerebellar ataxia with or without mental retardation. The molecular pathogenesis of the autosomal recessive cerebellar ataxias has a wide range of mechanisms. Differential diagnosis and categorization of the recessive cerebellar ataxias, however, need more ...

Clinical and pathophysiological evidences connect migraine and the cerebellum. Literature on documented cerebellar abnormalities in migraine, however, is relatively sparse. Cerebellar involvement may be observed in 4 types of migraines: in the widespread migraine with aura (MWA) and migraine without aura (MWoA) forms; in particular subtypes of migraine such as basilar-type migraine (BTM); and i...