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Protein-bound homocyst(e)ine. A possible risk factor for coronary artery disease.
S S Kang, … , M Norusis, J V Messer
S S Kang, … , M Norusis, J V Messer
Published May 1, 1986
Citation Information: J Clin Invest. 1986;77(5):1482-1486. https://doi.org/10.1172/JCI112461.
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Protein-bound homocyst(e)ine. A possible risk factor for coronary artery disease.

Abstract

The development of atherosclerotic changes and thromboembolism are common features in homocystinurics. Hence, we postulate a positive correlation between the level of homocyst(e)ine in the blood and the occurrence of coronary artery disease. Homocysteine is found either as free homocystine, cysteine-homocysteine mixed disulfide, or protein-bound homocyst(e)ine. In nonhomocystinuric subjects, most homocysteine molecules are detectable in the protein-bound form. Thus, protein-bound homocyst(e)ine in stored plasma which reflected total plasma homocyst(e)ine was determined in 241 patients with coronary artery disease (173 males and 68 females). The mean +/- SD total plasma homocyst(e)ine was 5.41 +/- 1.62 nmol/ml in male patients, 4.37 +/- 1.09 nmol/ml in male controls, 5.66 +/- 1.93 nmol/ml in female patients, and 4.16 +/- 1.62 nmol/ml in female controls. The differences between the patients with coronary artery disease and the controls were statistically significant (P less than 0.0005).

Authors

S S Kang, P W Wong, H Y Cook, M Norusis, J V Messer

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