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   DiseasesDB    = 14093 |
   DiseasesDB    = 9820 |
   DiseasesDB_mult = {{DiseasesDB2|32911}} {{DiseasesDB2|12315}} |
   ICD10          = {{ICD10|I|01|0|i|00}}, {{ICD10|I|09|2|i|05}}, {{ICD10|I|30||i|30}}-{{ICD10|I|32||i|30}} |
  ICD10          = {{ICD10|G|12||g|10}} |
   ICD9          = {{ICD9|420.90}} |
   ICD9          = {{ICD9|335.0}}-{{ICD9|335.1}} |
   ICDO          = |
   ICDO          = |
   OMIM          = 253300 |
   OMIM          = |
   OMIM_mult      = {{OMIM2|253550}} {{OMIM2|253400}} {{OMIM2|271150}} |
   MedlinePlus    = |
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  eMedicineSubj  =  |
   eMedicineSubj = |
   eMedicineTopic = |
   eMedicineTopic = |
   eMedicine_mult = |
   MeshID        = D009134 |
   MeshName      = Spinal muscular atrophy |
   MeshNumber    = C14.280.720 |
}}
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{{SI}}
{{Spinal Muscular Atrophy}}


{{CMG}}
'''For patient information click [[Spinal muscular atrophy (patient information)|here]]'''
 
'''Editors-in-Chief:''' [[C. Michael Gibson, M.S., M.D.]]; [[Priyamvada Singh]], [[MBBS]]
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{{Editor Help}}
===[[Spinal Muscular atrophy overview | Overview]]===


===[[Spinal Muscular atrophy symptom| Symptom]]===
'''''Synonyms and keywords:''''' Werdnig-Hoffman, Intermediate SMA, Kugelberg-Welander


===[[Spinal Muscular atrophy diagnosis|Diagnosis]]===
==[[Spinal muscular atrophy overview | Overview]]==


===[[Spinal Muscular atrophy causes|Causes]]===
==[[Spinal muscular atrophy epidemiology and demographics| Epidemiology and Demographics]]==


===[[Spinal Muscular atrophy types|Types]]===
==[[Spinal muscular atrophy risk factor|Risk Factors]]==


==[[Spinal muscular atrophy screening | Screening]]==


===[[Spinal Muscular atrophy statistic| Statistic]]===
==[[Spinal muscular atrophy other forms | Other forms]]==


===[[Spinal Muscular atrophy other forms | Other forms]]===
==[[Spinal muscular atrophy molecular biology|Molecular Biology]]==


===[[Spinal Muscular atrophy treatment | Treatment]]===
==[[Spinal muscular atrophy genetics|Genetics]]==


===[[Spinal Muscular atrophy research|Research]]===
==[[Spinal muscular atrophy types|Types]]==


==[[Spinal muscular atrophy diagnosis|Diagnosis]]==


In 1978 Pearn published a series of papers on SMA. He reported that childhood onset SMA is not an uncommon disease and has an incidence in the Northern UK in range of 4 per 100,000 births. At that time the association between the severe infantile form of SMA and the milder forms was not understood. With the advantage of knowledge about the causative gene, it is now known that SMA1, SMA2 and SMA3 are all caused by mutations in the same gene. The overall incidence of SMA, of all types, is in the range of 1 per 6,000 individual. It affects individuals of all races, unlike other well known autosomal recessive disorders like sickle cell disease, and cystic fibrosis, that have significant differences in occurrence rate between races. Overall, SMA1 is the most common genetic cause of death in infants.
==[[Spinal muscular atrophy full differential diagnosis|Full Differential Diagnosis]]==


The autosomal recessive versions of SMA are caused by inheritance of a mutated gene from each parent, who would not know that they have the abnormal gene because having only one mutated copy produces no symptoms. Once a child is affected, each subsequent baby has a 25% chance of having the illness. If a sibling does not inherit the disorder, he or she has a 2/3 chance of being a carrier.
==[[Spinal muscular atrophy symptom| Symptom]]==


On the other hand, X-linked infantile SMA is passed from mothers only to sons.  Sons have a 50% chance of inheriting the defective gene from a mother who is a carrier and suffering the disease, while daughters have a 50% chance of becoming carriers without symptoms themselves.  Couples may want to have genetic counseling before deciding to have more children. Counseling is available to these families through the community.
==[[Spinal muscular atrophy treatment | Treatment]]==
[[Spinal muscular atrophy outcome measures|Outcome measures]]|[[Spinal muscular atrophy therapeutics development|Therapeutics development]]


In 1990 mapping of the gene for SMA to [[chromosome 5 (human)|chromosome 5]]q11.2-13.3 was reported and culminated in a 3 year research funded in part by the [[Muscular Dystrophy Association]]. The findings were also confirmed by French researchers. The identification of the gene for autosomal recessive SMA on chromosome 5q has allowed for prenatal diagnosis. Families who are at risk, or who have had a child with the diagnosis can have an [[amniocentesis]] done during pregnancy for DNA testing.
==[[Spinal muscular atrophy research|Research]]==


==References==
==References==
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* [http://www.smatrust.org SMA Trust] - a UK registered charity working to fund medical research into Spinal Muscular Atrophy
* [http://www.smatrust.org SMA Trust] - a UK registered charity working to fund medical research into Spinal Muscular Atrophy
* [http://www.jtsma.org.uk Jennifer Trust for Spinal Muscular Atrophy] - A national charity in the UK dedicated both to supporting people affected by SMA, and investing in essential research into causes, treatments and eventually a cure for the condition
* [http://www.jtsma.org.uk Jennifer Trust for Spinal Muscular Atrophy] - A national charity in the UK dedicated both to supporting people affected by SMA, and investing in essential research into causes, treatments and eventually a cure for the condition
{{Diseases of the nervous system}}
{{SIB}}


[[Category:Motor neuron disease]]
[[Category:Motor neuron disease]]
[[Category:Genetic disorders]]
[[Category:Genetic disorders]]
[[Category:Pediatrics]]
[[Cateogry:Neurology]]


[[da:Spinal muskulær atrofi]]
[[da:Spinal muskulær atrofi]]

Latest revision as of 12:11, 26 August 2012

Spinal muscular atrophy
ICD-10 I01.0, I09.2, I30-I32
ICD-9 420.90
DiseasesDB 9820
MeSH muscular atrophy&field=entry#TreeC14.280.720 C14.280.720

Spinal Muscular Atrophy Microchapters

Home

Patient Info

Overview

Epidemiology and Demographics

Risk Factors

Screening

Other forms

Molecular Biology

Genetics

Types

Diagnosis

Diagnosis

Full Differential Diagnosis

Symptom

Physical Examination

Electrolyte & Biomarker Studies

Electrocardiogram

Chest X Ray

MRI and CT

Echocardiography or Ultrasound

Other Imaging Findings

Pathology

Other Diagnostic Studies

Treatment

Outcome measures

Therapeutics development

Indications For Surgery

Research

Pre-Operative Assessment

Post-Operative Assessment

Primary Prevention

Secondary Prevention

Cost-Effectiveness of Therapy

Future or Investigational Therapies

Spinal muscular atrophy Resources

Most recent articles on Spinal muscular atrophy

Most cited articles on Spinal muscular atrophy

Review articles on Spinal muscular atrophy

Review articles on Spinal muscular atrophy

CME Programs on Spinal muscular atrophy

Powerpoint slides on Spinal muscular atrophy

Images of Spinal muscular atrophy

Ongoing Trials on Spinal muscular atrophy at Clinical Trials.gov

US National Guidelines Clearinghouse on Spinal muscular atrophy

NICE Guidance on Spinal muscular atrophy

FDA on Spinal muscular atrophy

CDC on Spinal muscular atrophy

Spinal muscular atrophy in the news

Blogs on Spinal muscular atrophy

Directions to Hospitals Treating Spinal muscular atrophy

Risk calculators and risk factors for Spinal muscular atrophy

For patient information click here

Editors-in-Chief: C. Michael Gibson, M.S., M.D.; Priyamvada Singh, MBBS


Synonyms and keywords: Werdnig-Hoffman, Intermediate SMA, Kugelberg-Welander

Overview

Epidemiology and Demographics

Risk Factors

Screening

Other forms

Molecular Biology

Genetics

Types

Diagnosis

Full Differential Diagnosis

Symptom

Treatment

Outcome measures|Therapeutics development

Research

References

External links

  • Template:NINDS
  • SMA Support
  • Spinal Muscular Atrophy - Fight SMA - An international nonprofit dedicated to finding a treatment or cure for spinal muscular atrophy. Visit Fight SMA's website and also the Spinal Muscular Atrophy Blog for the latest news and research information about the leading genetic killer of children under two.
  • Families of Spinal Muscular Atrophy - An international nonprofit dedicated to advancing research and supporting individuals and families with sma. FSMA has a web site with news, information and message boards for individuals to post questions. FSMA is one of the largest US private funders of SMA research and has more than 30 chapters worldwide.FSMA
  • SMA Trust - a UK registered charity working to fund medical research into Spinal Muscular Atrophy
  • Jennifer Trust for Spinal Muscular Atrophy - A national charity in the UK dedicated both to supporting people affected by SMA, and investing in essential research into causes, treatments and eventually a cure for the condition

Cateogry:Neurology

da:Spinal muskulær atrofi de:Spinale Muskelatrophie el:Νωτιαία μυϊκή ατροφία nl:Spinale Musculaire Atrofieën fi:Spinaaliset lihasatrofiat sv:Spinal muskelatrofi


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