Presentation
The duplication spans 10 known and 2 unknown genes, and is present in all affected individuals in the single reported SCA20 pedigree. [ncbi.nlm.nih.gov]
These advances have been associated with discoveries of new clinical disorders, in particular in the field of genetic ataxias, and the growing number of diseases presents a source of difficulty for clinicians during daily practice. [books.google.es]
In addition, two distinctive features were usually present. [brain.oxfordjournals.org]
The duplication was shown to be present in all affected individuals in the single reported SCA20 pedigree. [ashg.org]
Entire Body System
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Pathologist
MANAGEMENT: Treatment of manifestations: Physical and occupational therapy; guidance from a speech pathologist expert in the management of neurogenic dysphagia. [ncbi.nlm.nih.gov]
Some level of improvement was shown to be maintained 24 weeks post-treatment. [34] Speech language pathologists may use both behavioral intervention strategies as well as augmentative and alternative communication devices to help patients with impaired [en.wikipedia.org]
Respiratoric
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High Pitched Voice
pitched voice 0001620 Limb ataxia 0002070 Nystagmus Involuntary, rapid, rhythmic eye movements 0000639 Palatal myoclonus 0010530 Postural tremor 0002174 Slow progression Signs and symptoms worsen slowly with time 0003677 Showing of 24 Last updated: 12 [rarediseases.info.nih.gov]
Neurologic
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Episodic Vertigo
Other initial symptoms were dysarthria with simultaneous gait ataxia (2/16), gait ataxia alone (2/16), upper-limb kinetic and isometric tremor (1/16), and episodic vertigo (1/16). [ncbi.nlm.nih.gov]
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Abnormal Involuntary Movement
The remaining chapters focus on the abnormal involuntary movements associated with each disease or syndrome. [books.google.es]
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Cerebral Calcification
calcification Abnormal deposits of calcium in the brain 0002514 Hypermetric saccades 0007338 Laryngeal dystonia 0012049 5%-29% of people have these symptoms Abnormal pyramidal sign 0007256 Downbeat nystagmus 0010545 Gait ataxia Inability to coordinate [rarediseases.info.nih.gov]
Workup
Further genetic workup revealed 96 CAG repeat expansion compared with a normal of Spinocerebellar ataxia Type 7 is a disease of expanded CAG repeats showing genetic anticipation. [journals.lww.com]
Urine
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Albuminuria
Research output : Contribution to journal › Article › Research › peer-review Chronic kidney cortical damage is associated with baseline kidney function and albuminuria in patients managed with radical nephrectomy for kidney tumours Ellis, R. [monash.edu]
Treatment
In addition, new neurophysiological and imaging techniques are discussed, along with an in-depth examination of the treatment and management protocols of ataxic diseases. [books.google.es]
MANAGEMENT: Treatment of manifestations: Physical and occupational therapy; guidance from a speech pathologist expert in the management of neurogenic dysphagia. [ncbi.nlm.nih.gov]
Prognosis
The prognosis is bleak, with a gradual progression to disability and death within 10-20 years. Ref: Orr, H.T. et al. (1993). Expansion of an unstable CAG trinucleotide repeat in spinocerebellar ataxia type I. Nature Genet. 4, 221-26. [gpnotebook.co.uk]
Prognosis Prognosis is relatively good. Most patients can walk with or without gait aids and many patients live to more than 60 years of age. Last updated: 5/1/2011 This table lists symptoms that people with this disease may have. [rarediseases.info.nih.gov]
SCA Type 3, also known as Machado-Joseph disease (MJD) is the most common (21%) of all SCAs and shares the same prognosis of 10-20 years. [spinocerebellarataxia.org]
This disorder also has a poor prognosis. [emedicine.medscape.com]
Etiology
Beginning with an examination of the cerebellar region, and then progressing to a fresh perspective on the clinical aspects of the various forms of ataxia, this handbook gives clinicians a state-of-the-art reference for the management of the many etiologies [books.google.es]
Etiology SCA20 has been linked to chromosome 11q12.2-11q12.3, overlapping with the locus for SCA5 (see this term), though clinical features differ. [rarediseases.info.nih.gov]
[…] also been documented in case series. 11 Electrophysiological testing shows early cone dysfunction followed by rod dysfunction in later stages, resulting in a cone–rod dystrophy. 12 Differential diagnosis of this disease should include the following etiologies [journals.lww.com]
Epidemiology
1 Jan 2019, In : Epidemiology (Cambridge, Mass.). 30, 1, p. 38-47 10 p. [monash.edu]
Pérez L, Cruz GS, Santos Falcón N, Almaguer Mederos L, Escalona Batallan K, Rodríguez Labrada R, Paneque Herrera M, Laffita Mesa JM, Rodríguez Díaz JC, Rodríguez RA, González Zaldivar Y, Coello Almarales D, Almaguer Gotay D, Jorge Cedeño H: Molecular epidemiology [karger.com]
Molecular epidemiology of spinocerebellar ataxias in Cuba: insights into SCA2 founder effect in Holguin. Neurosci Lett. 2009 Apr 24;454(2):157-60. doi: 10.1016/j.neulet.2009.03.015. Epub 2009 Mar 11. [ghr.nlm.nih.gov]
Epidemiology Prevalence is unknown. Fewer than 20 cases in a 4-generation Australian family of Anglo-Celtic descent have been reported to date. Clinical description Age of symptomatic disease onset ranges from 19 to 64 years (mean age 46.5 years). [rarediseases.info.nih.gov]
Recent evidence suggests that ataxin-7 interacts with CRX which is a nuclear transcription factor predominantly expressed in retinal photoreceptor cells in which a mutation can cause cone-rod dystrophy. (5) Table 2: The Spinocerebellar Ataxias: Epidemiology [webeye.ophth.uiowa.edu]
Pathophysiology
This book discusses the pathophysiology of tremor including membrane mechanisms and rodent models, the advances in genetics and the musculoskeletal models pertinent to body oscillations. [books.google.es]
The CAG-polyglutamine repeat diseases: a clinical, molecular, genetic, and pathophysiologic nosology Stoyas CA, La Spada AR Handbook of clinical neurology, 2018, 147, p 143 RNA toxicity and foci formation in microsatellite expansion diseases. [myobase.org]
Pathophysiology a. mutation in or deletion of the NF1 gene b. gene product neurofibromin serves as a tumor suppressor 3. Incidence: 1 in 3000 4. [neurosurgerystudent.blogspot.com]
Matilla‐Dueñas A, Goold R and Giunti P (2008) Clinical, genetic, molecular, and pathophysiological insights into spinocerebellar ataxia type 1. Cerebellum 7(2): 106–114. [els.net]
"Cerebellar ataxia: Pathophysiology and rehabilitation". Clinical Rehabilitation. 25 (3): 195–216. doi : 10.1177/0269215510382495. PMID 21321055. "SCA2 information sheet from www.ataxia.org" (PDF). Archived from the original (PDF) on 2012-07-12. [en.wikipedia.org]
Prevention
Prevention of secondary complications: Prevention of falls by using appropriate gait aids and home modifications; personal alarm system. GENETIC COUNSELING: SCA20 is inherited in an autosomal dominant manner. [ncbi.nlm.nih.gov]
[…] receipts from all of the retailer’s sales, within the preceding 12 months, of tangible personal property to purchasers in this state transacted online exceeds one hundred thousand dollars ( 100,000). (4) This subdivision shall not be interpreted to prevent [leginfo.legislature.ca.gov]
The Department of Pediatrics at UCSD is one of the nation's premier Departments devoted to improving the understanding of disease pathogenesis in order to better diagnose, treat and prevent diseases in infants and children. [laspadalab.ucsd.edu]
Proteins mediating transfer of information – hormones, cytokines, receptors Locomotive Proteins that are responsible for movement – myosin, actin … Transport Proteins that transport various substances – haemoglobin, transferrin, … Defensive Proteins that prevent [slideshare.net]