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Cardiovascular Drugs and Therapy

, Volume 32, Issue 2, pp 233–240 | Cite as

Analytic Approaches for the Treatment of Hyperhomocysteinemia and Its Impact on Vascular Disease

  • Soo-Sang Kang
  • Robert S. Rosenson
REVIEW ARTICLE
  • 175 Downloads

Abstract

Homocysteine is an intermediary metabolite in the methionine cycle. Accumulation of homocysteine is caused either by mutation of relevant genes or by nutritional depletion of related vitamin(s). This review covers the historical background of hyperhomocysteinemia in which indispensable subjects in relation to underlying pathophysiological processes are discussed with the view of metabolism and genetics of folate and methionine cycles. This review emphasizes the unique role of homocysteine that is clearly distinct from other risk factors, particularly cholesterol in the development of vascular disease. The critical issue in understanding the role of homocysteine is the relation with plasma folic acid. The majority of subjects with homocysteine > 15 μmol/L exhibit plasma folate < 9 nmol/ L, indicating that depletion of folate is the main cause of hyperhomocysteinemia irrespective of the presence or absence of vascular disease. Furthermore, only the group of subjects with homocysteine levels > 15 μmol/L demonstrated a higher prevalence of vascular disease. Analytic approaches to treat hyperhomocysteinemia are discussed in which stepwise administration with nutritional doses of folic acid, 5-methyitetrahydrofolate (5-MTHF), and betaine is provided singly or by combined manner based on clinical and laboratory evaluations. Whether correction of hyperhomocysteinemia is able to prevent the development of homocysteine-associated vascular disease remains an unresolved issue. The review discussed a biochemical and mechanistic approach to resolve questions involved in the relation between homocysteine and the development of atherosclerotic vascular disease.

Keywords

Homocysteine Hyperhomocysteinemia Atherosclerotic cardiovascular disease Genetics 

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Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2018

Authors and Affiliations

  1. 1.Division of Biomedical GeneticsRush University Medical CenterChicagoUSA
  2. 2.Cardiometabolics Unit, Zena and Michael A. Wiener Cardiovascular Institute, Marie-Josee and Hnery R Kravis Center for Cardiovascular Health, Mount Sinai HeartIcahn School of Medicine at Mount SinaiNew YorkUSA

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