crossover
    1999

    Demonstration of rapid onset vascular endothelial dysfunction after hyperhomocysteinemia: an effect reversible with vitamin C therapy

    Chambers JC, McGregor A, Jean-Marie J

    Published in Circulation

    Key Findings

    Oral methionine loading raised homocysteine and acutely impaired flow-mediated endothelial function in healthy men.

    Conclusions

    Acute high-dose methionine is vasotoxic via homocysteine.

    Limitations

    Acute loading dose, surrogate endpoint.

    Supplements Studied

    L-Methionine
    Amino Acid

    Oral methionine loading raised homocysteine and acutely impaired flow-mediated endothelial function.

    Vitamin C
    Vitamin

    Oral methionine loading raised homocysteine and acutely impaired flow-mediated endothelial function in healthy men.

    Outcomes Measured

    Acute methionine loading raised homocysteine, which impaired endothelial function relevant to vascular cognitive risk.

    Oral methionine loading raised homocysteine and acutely impaired flow-mediated endothelial function in healthy men.

    Study Details

    Year:1999
    Sample Size:17
    Quality Score:6/10

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