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Single gene disorders causing ischaemic stroke

Saif S M Razvi1, Ian Bone

  • 1Department of Neurology, Institute of Neurological Sciences, Southern General Hospital, 1345 Govan Road, Glasgow G51 4TF, UK.

Journal of Neurology
|June 30, 2006
PubMed

Insights

Genetic factors significantly contribute to stroke risk, particularly monogenic disorders like CADASIL. These single-gene conditions offer insights into cerebrovascular disease and stroke mechanisms.

Area of Science:

  • Neurology
  • Genetics
  • Vascular Biology

Background:

  • Stroke is a leading cause of death and disability globally.
  • Conventional risk factors explain only 40-50% of stroke cases.
  • Genetic factors are implicated in a substantial portion of stroke risk.

Purpose of the Study:

  • To explore the role of genetic factors in stroke.
  • To highlight monogenic stroke disorders as models for research.
  • To understand the contribution of single-gene defects to cerebrovascular disease.

Main Methods:

  • Review of existing literature on genetic stroke etiologies.
  • Analysis of monogenic stroke disorder classifications.
  • Identification of specific monogenic conditions linked to stroke.

Main Results:

  • Monogenic disorders account for approximately 1% of ischemic stroke.
  • Examples include cerebral autosomal dominant/recessive arteriopathy with subcortical infarcts and leukoencephalopathy (CADASIL/CARASIL) and hereditary endotheliopathy, retinopathy, nephropathy, and stroke (HERNS).
  • Other conditions like sickle cell disease and Fabry disease also cause stroke.

Conclusions:

  • Monogenic stroke disorders provide valuable models for studying stroke and vascular dementia.
  • Understanding these genetic conditions is crucial for a comprehensive approach to stroke prevention and treatment.
  • Genetic factors play a critical, often underestimated, role in stroke etiology.

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