To the Editor: The article "Association between Plasma HomocysteineConcentrations and Extracranial Carotid-Artery Stenosis"1 andthe accompanying editorial "Can Lowering Homocysteine LevelsReduce Cardiovascular Risk?"2 (Feb. 2 issue) draw attentionto the increased risk of vascular disease in the presence ofincreased plasma concentrations of what both the article andthe editorial term "homocysteine."
The words "homocysteine" and "homocystine" were coined by duVigneaud and coworkers, who discovered these compounds some60 years ago, to designate, respectively, the reduced (sulfhydryl)and the oxidized (disulfide) forms of these next-higher homologuesof cysteine and cystine.3 Normal human plasma contains a totalconcentration . . . [Full Text of this Article]
References
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