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Abstract

Aim: This study aimed to develop and validate an efficient LC–MS/MS method for the simultaneous determination of Hcy, Cys, Met and 5-methyltetrahydrofolate in human serum and to apply this method to patients with coronary artery disease. Methodology and results: Serum samples were prepared by reduction with dithiothreitol followed by protein precipitation. The analytical run time was 2.2 min. The linearity was good in the range of 2–100 μmol/l-1 for Hcy and Met, 10–500 μmol/l-1 for Cys, and 1–50 ng/ml-1 for 5-methyltetrahydrofolate. Conclusion: An accurate and precise method that was rapid, robust and with high-throughput for the routine clinical monitoring of patients with coronary artery disease was developed.

Keywords:

  • 5-methyltetrahydrofolate
  • coronary artery disease
  • homocysteine
  • hyperhomocysteinemia
  • LC–MS/MS
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