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在CKD中探索药物和代谢障碍之间的相互作用:用口服抗凝剂为例
Touria Mernissi1,2, Stéphane Jaisson3, Pierre Spicher1
1MP3CV Laboratory, Jules Verne University of Picardie, Amiens, France.
Kidney360
|June 19, 2025
概括
降低功能会增加自由药物水平,特别是维生素K对抗剂 (VKA). 这种效应部分由蛋白质碳amylation介导,影响慢性病患者的药物疗效和安全性.
科学领域:
- 药理学 药理学是指药理学的学科.
- 腎臟病學 (nephrology) 是一種醫學專業.
- 药物新陈代谢 药物新陈代谢
背景情况:
- 慢性病 (CKD) 由于代谢障碍而改变药物药理动力学.
- 在CKD中尿液毒素可以影响药物分发,白蛋白结合和药物活性.
- 维生素K对抗剂 (VKA) 是常用的,可能会受到CKD相关变化的影响.
研究的目的:
- 为了研究自由VKA度与估计的淋巴细胞过率 (eGFR) 之间的关联.
- 为了确定蛋白质碳amylation (homocitrulline) 或蛋白质结合的尿素毒素 (PBUTs) 是否调解这种关联.
主要方法:
- 对389名接受VKA治疗的成年患者进行了前性横截面研究.
- 使用液体染色学-并联质谱法对自由/总VKA,同位素素和PBUT进行检测.
- 线性回归和调解分析,以评估功能,自由VKA水平和潜在调解器之间的关系.
主要成果:
- 较低的eGFR (<40mL/min/1.73m2) 或血液透析与更高的自由VKA水平和更高的自由/总VKA比率有关.
- 功能与自由VKA水平独立相关 (β1=0.31,p<0.001).
- 人类氨酸调解了功能和自由VKA水平之间的21%的关联;PBUTs没有调解这种关系.
结论:
- 降低功能会提高VKAs的自由药物分数,而不依赖于专蛋白水平.
- 蛋白质碳化部分介导功能对自由VKA水平的影响.
- 这些发现突显了功能受损对VKA药理动力学和潜在临床影响的影响.
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