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同型半胱氨酸(Homocysteine,Hcy)是甲硫氨酸代谢过程中产生的一类含硫氨基酸。正常成人血浆Hcy水平为5～15μmol/L。研究表明,正常妊娠时,Hcy水平会降低,孕20～32周可降至孕前的50%～60%。近年来研究发现,母亲
Homocysteine (Hcy) is a type of sulfur-containing amino acid produced during methionine metabolism. Normal adult plasma Hcy levels of 5 ~ 15μmol / L. Studies have shown that normal pregnancy, Hcy levels will be reduced from 20 to 32 weeks pregnant can be reduced to 50% before pregnancy to 60%. In recent years, research found that mothers