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Utility of Dissociated Intrinsic Hand Muscle Atrophy in the Diagnosis of Amyotrophic Lateral Sclerosis
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Epidemiological evidence on multiple system atrophy.

N Vanacore1

  • 1National Centre of Epidemiology, Surveillance and Health Promotion, National Institute of Health, Rome, Italy. vanacore@iss.it

Journal of Neural Transmission (Vienna, Austria : 1996)
|November 15, 2005
PubMed
Summary
This summary is machine-generated.

Multiple system atrophy (MSA) is a rare neurodegenerative disease. Research suggests complex genetic and environmental factors contribute to MSA, but large-scale studies are needed to confirm findings.

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Area of Science:

  • Neurodegenerative Disorders
  • Epidemiology
  • Genetics

Background:

  • Multiple system atrophy (MSA) is a sporadic neurodegenerative disorder with parkinsonian, autonomic, cerebellar, or pyramidal symptoms.
  • MSA affects 0.6 per 100,000 person-years (incidence) and 1.86-4.9 per 100,000 population (prevalence).
  • Potential risk factors include farming history, while smoking may be protective.

Purpose of the Study:

  • To review the current epidemiological and clinical evidence for Multiple System Atrophy (MSA).
  • To highlight the complex interplay of genetic and environmental factors in MSA pathogenesis.
  • To emphasize the need for larger sample sizes and multicentric consortia in MSA research.

Main Methods:

  • Review of existing epidemiological and clinical studies on MSA.
  • Analysis of reported risk factors, including occupational history and smoking.
  • Examination of genetic association studies, particularly those involving inflammation-related genes.

Main Results:

  • Evidence suggests a complex etiology for MSA involving multiple genetic and environmental factors.
  • Farming history is a potential risk factor, but pesticide exposure is not definitively linked.
  • Smoking appears to be a protective factor, similar to Parkinson's disease.
  • Genetic studies indicate a role for inflammation-related genes in MSA risk.

Conclusions:

  • The etiopathogenesis of MSA is complex, requiring investigation into numerous genetic and environmental influences.
  • Current scientific evidence for MSA is limited by small sample sizes in most studies.
  • Multicentric consortia are essential for collecting sufficient data to achieve statistical power for hypothesis testing in MSA research.