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中国临床药理学与治疗学 ›› 2020, Vol. 25 ›› Issue (6): 709-715.doi: 10.12092/j.issn.1009-2501.2020.06.014

• 综述与讲座 • 上一篇    下一篇

饮食维生素K对华法林抗凝稳定性的影响

翟宇, 杨劲   

  1. 中国药科大学药物代谢与动力学研究中心,南京 211198,江苏
  • 收稿日期:2020-05-07 出版日期:2020-06-26 发布日期:2020-07-09
  • 通讯作者: 杨劲,男,博士,教授,博士生导师,研究方向:药物代谢和临床药理研究。Tel: 025-83271386 E-mail: cpu_yj@163.com
  • 作者简介:翟宇,女,硕士研究生,研究方向:药物代谢和临床药理研究。Tel:025-83271386 E-mail:zhaiyu54@163.com
  • 基金资助:
    中国药科大学“双一流”建设项目(CPU2018GY24)

Effects of dietary vitamin K on the stability of warfarin anticoagulation therapy

ZHAI Yu, YANG Jin   

  1. Key Laboratory of Drug Metabolism and Pharmacokinetics, China Pharmaceutical University, Nanjing 211198, Jiangsu, China
  • Received:2020-05-07 Online:2020-06-26 Published:2020-07-09

摘要: 饮食维生素K摄入量的变化是造成口服华法林患者国际标准化比值(INR)异常波动的主要原因之一。对于口服华法林患者应该如何摄入维生素K,临床医师给出的意见一直比较模糊。过去许多患者被告知应“限制或避免食用富含维生素K的食物,包括绿叶蔬菜类”,这可能导致他们的维生素K摄入量偏低。近年来的研究和循证医学证据表明,华法林抗凝稳定性差与低维生素K摄入量有关;稳定保持较高水平的维生素K日摄入量(>100 μg/d)可降低无法解释的华法林剂量-反应关系个体内变异发生率,减少INR的异常波动,提高抗凝治疗的稳定性。

关键词: 华法林, 饮食维生素K, 国际标准化比值, 稳定性

Abstract: Change in dietary vitamin K intake is one of the main causes of abnormal fluctuations in international standardized ratio (INR) of patients on warfarin therapy. Advice from clinicians on how to manage vitamin K intake for patients has been vague. In the past, patients were often told to restrict or avoid vitamin K-rich foods including leafy greens during anticoagulation therapy, which could lead to lower vitamin K intake. Evidence-based studies in recent years have found that instability of warfarin therapy is associated with low intake of vitamin K. A stable and relatively higher daily intake of vitamin K (>100 μg/d) can reduce unexplained intra-individual variability in response to warfarin, and thus reduce abnormal fluctuations in INR and improve the stability of anticoagulation therapy.

Key words: warfarin, dietary vitamin K, international normalized ratio, stability

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