National Center for Advancing and Translational Sciences Genetic and Rare Diseases Information Center, a program of the National Center for Advancing and Translational Sciences

Spinocerebellar ataxia autosomal recessive 8



Other Names:
ARCA1; SCAR8; autosomal recessive spinocerebellar ataxia 8; ARCA1; SCAR8; autosomal recessive spinocerebellar ataxia 8; Recessive ataxia of Beauce; SYNE1-related autosomal recessive cerebellar ataxia; Autosomal recessive ataxia Beauce type See More
Categories:
This disease is grouped under:

The following summary is from Orphanet, a European reference portal for information on rare diseases and orphan drugs.
orphanet

Orpha Number: 88644

Definition
A rare disorder characterised by a slowly progressive pure cerebellar ataxia associated with dysarthria. It has been described in 53 individuals from 26 families of Canadian origin. The mode of transmission is autosomal recessive. Positional cloning has led to the identification of several gene mutations.

Visit the Orphanet disease page for more resources.
Last updated: 1/1/2007

This table lists symptoms that people with this disease may have. For most diseases, symptoms will vary from person to person. People with the same disease may not have all the symptoms listed. This information comes from a database called the Human Phenotype Ontology (HPO) . The HPO collects information on symptoms that have been described in medical resources. The HPO is updated regularly. Use the HPO ID to access more in-depth information about a symptom.

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Medical Terms Other Names
Learn More:
HPO ID
80%-99% of people have these symptoms
Progressive cerebellar ataxia 0002073
Spastic dysarthria 0002464
30%-79% of people have these symptoms
Brisk reflexes 0001348
Cerebellar atrophy
Degeneration of cerebellum
0001272
Decreased fetal movement
Less than 10 fetal movements in 12 hours
0001558
Dysmetria
Lack of coordination of movement
0001310
Dysmetric saccades
Uncoordinated eye movement
0000641
Impaired smooth pursuit 0007772
Limb ataxia 0002070
Motor delay 0001270
Nystagmus
Involuntary, rapid, rhythmic eye movements
0000639
Progressive gait ataxia 0007240
5%-29% of people have these symptoms
Abnormal motor evoked potentials 0012896
Adducted thumb
Inward turned thumb
0001181
Developmental regression
Loss of developmental milestones
Mental deterioration in childhood
[ more ]
0002376
Distal arthrogryposis 0005684
EMG: neuropathic changes 0003445
Joint contracture of the hand 0009473
Mildly elevated creatine kinase 0008180
Muscular hypotonia
Low or weak muscle tone
0001252
Peripheral axonal neuropathy 0003477
1%-4% of people have these symptoms
Bilateral talipes equinovarus
Club foot on both sides
0001776
Cryptorchidism
Undescended testes
Undescended testis
[ more ]
0000028
Fasciculations
Muscle twitch
0002380
Intellectual disability
Mental deficiency
Mental retardation
Mental retardation, nonspecific
Mental-retardation
[ more ]
0001249
Respiratory insufficiency due to muscle weakness
Decreased lung function due to weak breathing muscles
0002747
Spasticity
Involuntary muscle stiffness, contraction, or spasm
0001257
Percent of people who have these symptoms is not available through HPO
Adult onset
Symptoms begin in adulthood
0003581
Autosomal recessive inheritance 0000007
Dysarthria
Difficulty articulating speech
0001260
Gait ataxia
Inability to coordinate movements when walking
0002066
Kyphosis
Hunched back
Round back
[ more ]
0002808
Pes cavus
High-arched foot
0001761
Ptosis
Drooping upper eyelid
0000508
Scoliosis 0002650
Slow progression
Signs and symptoms worsen slowly with time
0003677
Strabismus
Cross-eyed
Squint
Squint eyes
[ more ]
0000486
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Last updated: 7/1/2020

If you need medical advice, you can look for doctors or other healthcare professionals who have experience with this disease. You may find these specialists through advocacy organizations, clinical trials, or articles published in medical journals. You may also want to contact a university or tertiary medical center in your area, because these centers tend to see more complex cases and have the latest technology and treatments.

If you can’t find a specialist in your local area, try contacting national or international specialists. They may be able to refer you to someone they know through conferences or research efforts. Some specialists may be willing to consult with you or your local doctors over the phone or by email if you can't travel to them for care.

You can find more tips in our guide, How to Find a Disease Specialist. We also encourage you to explore the rest of this page to find resources that can help you find specialists.

Healthcare Resources


Support and advocacy groups can help you connect with other patients and families, and they can provide valuable services. Many develop patient-centered information and are the driving force behind research for better treatments and possible cures. They can direct you to research, resources, and services. Many organizations also have experts who serve as medical advisors or provide lists of doctors/clinics. Visit the group’s website or contact them to learn about the services they offer. Inclusion on this list is not an endorsement by GARD.

Organizations Supporting this Disease


These resources provide more information about this condition or associated symptoms. The in-depth resources contain medical and scientific language that may be hard to understand. You may want to review these resources with a medical professional.

In-Depth Information

  • The Monarch Initiative brings together data about this condition from humans and other species to help physicians and biomedical researchers. Monarch’s tools are designed to make it easier to compare the signs and symptoms (phenotypes) of different diseases and discover common features. This initiative is a collaboration between several academic institutions across the world and is funded by the National Institutes of Health. Visit the website to explore the biology of this condition.
  • Online Mendelian Inheritance in Man (OMIM) is a catalog of human genes and genetic disorders. Each entry has a summary of related medical articles. It is meant for health care professionals and researchers. OMIM is maintained by Johns Hopkins University School of Medicine. 
  • Orphanet is a European reference portal for information on rare diseases and orphan drugs. Access to this database is free of charge.

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