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Related Experiment Videos

Homocysteine and stroke.

G J Hankey1, J W Eikelboom

  • 1Stroke Unit, Royal Perth Hospital, Western Australia and Department of Medicine, University of Western Australia. gjhankey@cyllene.uwa.edu.au

Current Opinion in Neurology
|February 15, 2001
PubMed
Summary
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Elevated homocysteine levels are linked to stroke risk. While multivitamins may improve some markers, their effect on preventing major vascular events like stroke requires further investigation in ongoing trials.

Area of Science:

  • Cardiovascular epidemiology
  • Vascular biology
  • Clinical trials

Background:

  • Epidemiological studies associate elevated plasma total homocysteine with increased ischemic stroke risk.
  • Laboratory research investigates homocysteine's effects on vascular smooth muscle and endothelium.
  • A prior trial indicated multivitamin therapy reduces abnormal exercise electrocardiography tests.

Purpose of the Study:

  • To determine if lowering total homocysteine prevents hard clinical vascular outcomes, such as stroke.
  • To explore confounding factors that may explain the homocysteine-stroke association.
  • To await results from ongoing clinical trials on multivitamin therapy's impact on recurrent stroke.

Main Methods:

  • Review of epidemiological and laboratory studies.

Related Experiment Videos

  • Analysis of a clinical trial on multivitamin therapy and exercise electrocardiography.
  • Observation of ongoing clinical trials in stroke patients.

    • Main Results:

    • Elevated total homocysteine is linked to increased ischemic stroke risk.
    • Multivitamin therapy lowered abnormal exercise electrocardiography test rates.
    • The impact of lowering homocysteine on hard clinical outcomes remains undetermined.

    Conclusions:

    • The association between elevated homocysteine and stroke may be confounded by other factors.
    • Further research and ongoing trials are necessary to establish if lowering homocysteine prevents major vascular events.
    • The clinical significance of homocysteine levels and multivitamin interventions requires continued evaluation.