Am J Kidney Dis:CKD儿童和青少年胱抑素C与心脏功能相关

2016-11-28 haofan MedSci原创

轻中度CKD的儿童和青少年其胱抑素C水平与心脏结构和左室舒张功能独立相关。调整了mGFR后,胱抑素C水平仍然能够通过E′/A′比预测舒张功能下降,这表明胱抑素C水平在CKD的儿童和青少年CVD危险分层中可能存在独立的作用。

心血管疾病(CVD)在慢性肾脏疾病(CKD)的儿童中是非常普遍的。胱抑素C是肾功能已知的标志物,并且作为CVD事件的一个新兴生物学标志物。


最近,肾脏病领域权威杂志Am J Kidney Dis上发表了一篇来自巴尔的摩约翰霍普金斯大学医学院小儿肾脏科的Tammy M. Brady博士及其团队的研究文章,他们量化了CKD患儿在随着时间的推移过程中胱抑素C水平与心脏结构与功能之间的关系,并旨在评估当考虑肾脏功能时,是否胱抑素C水平与舒张功能之间的相关性仍然存在。

该研究为前瞻性队列研究,678名轻中度CKD的儿童和青少年患者被招募到儿童CKD(CKiD)研究,并获得了1228份显示心脏结构和功能的超声心动图。该研究的预测指标为每年测量一次的血清胱抑素C(mg/L)水平,主要结果为每隔一年进行心脏结构(左心室重量指数[g/m2.7])和心功能(心室短轴缩短率、E/A、E′/A′、E/E′比率)测量。其他测量指标包括人口和人体测量、测量肾小球滤过率(mGFR)、心率、血压、血红蛋白Z评分、血清白蛋白水平和钙-磷乘积。

独立于时间因素,胱抑素C水平每增加1mg/L与左心室重量指数增加7.7%(95%可信区间为5.3%至10%)、E/A比改变了−4.7%(95%可信区间为−7%至−2.4%)、E′/A′比改变了−6.6%(95%可信区间为−9%至−4.2%)、E/E′比的增加了2.5%(95%可信区间为0.3%至4.7%)独立相关,mGFR也与E′/A′比存在独立相关性。当胱抑素C水平与mGFR被纳入到同一模型中,胱抑素C水平仍与E′/A′比保持独立相关性,而胱抑素C水平与mGFR的相关性不复存在。

在这项研究中,轻中度CKD的儿童和青少年其胱抑素C水平与心脏结构和左室舒张功能独立相关。调整了mGFR后,胱抑素C水平仍然能够通过E′/A′比预测舒张功能下降,这表明胱抑素C水平在CKD的儿童和青少年CVD危险分层中可能存在独立的作用。

原始出处:

Tammy M.Brady,et al. Cystatin C and Cardiac Measures in Children and Adolescents with CKD. Am J Kidney Dis.2016 Nov 14.

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    2016-12-06 李东泽

    很好,不错,以后会多学习

    0

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    2016-11-30 gwc389

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