Related Experiment Video
Updated: May 30, 2026

Cerebellar Regional Dissection for Molecular Analysis
Published on: December 5, 2020
Spinocerebellar ataxia type 20
Elsdon Storey1, R J McKinlay Gardner
1Department of Medicine (Neuroscience), Monash University (Alfred Hospital Campus), Melbourne, Australia. elsdon.storey@med.monash.edu.au
Abstract:
Spinocerebellar ataxia type 20 (SCA20), first reported in 2004, is a slowly progressive dominantly inherited disorder so far reported in a single Anglo-Celtic family from Australia. It is characterized by dentate calcification from an early stage of the illness. Dysarthria without ataxia is the first symptom in the majority - an unusual feature amongst the SCAs. In addition to ataxia, examination often reveals spasmodic dysphonia and palatal tremor, but the syndrome is otherwise fairly pure. The responsible genetic abnormality has been tentatively identified as a 260-kb duplication in the pericentric region of chromosome 11, but confirmation will necessarily await description of further families.
Related Concept Videos
Parkinson Disease ll: Pathophysiology
Disorders of the Skeletal Muscle
Musculoskeletal disorders
Musculoskeletal disorders involve injuries and conditions affecting the skeletal muscles and associated connective tissues. These disorders can arise from acute biomechanical stresses or chronic overuse and can occur across different age groups. Common injuries include sprains, fractures, and muscular strains, often resulting from...
Somatic Spinal Reflexes
One of the most well-known somatic spinal reflexes is the stretch reflex, which is activated by the sudden stretching of a muscle. This reflex involves the activation of specialized sensory receptors called muscle spindles, which are located in the muscle tissue and detect changes in the length and speed of muscle contractions. When a muscle is suddenly...
Parkinson's Disease: Overview
Poliomyelitis
Arboviral Encephalitis
