Combination Oxylanthanum Carbonate and Tenapanor Lowers Urinary Phosphate Excretion in Rats.

IF 3 Q1 UROLOGY & NEPHROLOGY Kidney360 Pub Date : 2025-03-01 Epub Date: 2025-01-22 DOI:10.34067/KID.0000000709
Satya Medicherla, Guru Reddy, Pramod Gupta, Glenn M Chertow, Shalabh Gupta
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碳酸氧镧联合泰纳帕诺降低大鼠尿磷酸盐排泄。
背景:本研究评估了磷酸结合剂碳酸氧镧(OLC)和经批准的减少细胞旁磷酸盐吸收的钠/氢交换剂3 (NHE3)抑制剂tenapanor对高磷饮食大鼠尿磷酸盐排泄的联合影响。方法:雄性Sprague Dawley大鼠64只随机分为8组:对照组;Tenapanor(仅0.15 mg/kg);OLC(0.75%, 1.5%和3%);OLC(0.75%、1.5%、3%)+ tenapanor (0.15 mg/kg)联合用药。Vehicle和tenapanor口服两次/天,而OLC则加入到日粮中。我们收集了24小时的尿液样本来测量尿磷酸盐排泄,这是肠道磷酸盐吸收效率的一个代表。初步分析比较了三个OLC剂量组的合并结果。结果:在tenapanor 0.15 mg/kg组中,第9天至第11天的平均尿磷酸盐排泄量比载药组低8.5 mg/d(12.5%)。在单独使用OLC组中,平均尿磷酸盐排泄量(在0.75、1.5和3% OLC剂量组中汇总)比载体组低12 mg/天(17.7%)。与对照组相比,OLC + tenapanor联合用药组尿磷酸盐排泄量降低28.0 mg/d (41.3%) (p=0.016)。独立Bliss模型评估观察结果与预测结果之间的统计学显著性,结果显示OLC + tenapanor联合治疗具有增效作用(0.75% OLC + tenapanor p=0.009, 1.5% OLC + tenapanor p=0.010)。结论:总之,我们证明了OLC单药治疗可显著减少尿磷酸盐排泄,OLC联合tenapanor治疗可显著减少尿磷酸盐排泄。
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来源期刊
Kidney360
Kidney360 UROLOGY & NEPHROLOGY-
CiteScore
3.90
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