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Aetiology
Review: high levels of homocysteine are associated with an increased risk for cardiovascular disease

https://doi.org/10.1136/ebm.5.2.63

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    (1999) Ann Intern Med 131, 363. Eikelboom JW, Lonn E, Genest J Jr, et al.. Homocyst(e)ine and cardiovascular disease: a critical review of the epidemiologic evidence.. Sep 7;. :. –75.
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 QUESTIONS: Are high levels of homocysteine associated with an increased risk for cardiovascular disease? Can levels of homocysteine be decreased by folic acid, either alone or combined with vitamin B-6 or B-12?

    Data sources

    Epidemiological studies (randomised controlled trials and cohort, case control, and cross sectional studies) were identified by searching Medline (1965 to January 1999) using the terms coronary heart disease, cerebrovascular disease, peripheral vascular disease, and atherosclerosis combined with the terms homocysteine, B-6, B-12, and folic acid. Bibliographies of relevant studies were also checked.

    Study selection

    All prospective and retrospective studies were included if they evaluated >150 patients who were considered to be cases, if they were published after 1995, and if they measured the association between homocysteine levels and cardiovascular disease or the intake of folic acid …

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    Footnotes

    • Source of funding: none.

    • For correspondence: Dr E Lonn, Preventive Cardiology and Therapeutics Program, McMaster University, Hamilton General Hospital, McMaster Clinic, 237 Barton Street East, Hamilton Ontario L8L 2X2, Canada. Fax +1 905 521 1166.