Sodium and potassium urinary excretion levels of preschool children: Individual, daily, and seasonal differences
Sodium and potassium urinary excretion levels of preschool children: Individual, daily, and seasonal differences
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学龄前儿童尿钠和钾排泄水平：个体、每日和季节差异
DOI：
10.1111/jch.12966
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发表时间：
2017
期刊：
影响因子：
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通讯作者：
T. Tsuchihashi
中科院分区：
文献类型：
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作者：
K. Yasutake;Mikako Nagafuchi;Ryoji Izu;Tomomi Kajiyama;K. Imai;Yusuke Murata;K. Ohe;M. Enjoji;T. Tsuchihashi
在这项研究中，作者测量了多天学龄前儿童尿样中的钠和钾浓度，并评估了个体、每日和季节性的影响。对104名4 ~ 5岁健康学龄前儿童进行了研究。每年四次（春、夏、秋、冬），连续三天（周一至周三）起床后第一次尿液采集。作者估计每日尿量为500毫升，每日肌酐排泄量为300毫克，并以此计算每日钠和钾的排泄量。每日钠钾排泄量和钠钾比变化很大。儿童排泄水平的变异系数在个体内部和个体之间也很高。周一（周末钠摄入量）的钠排泄水平和钠钾比高于周二。季节对钠、钾排泄量没有影响，但钠钾比在夏季高于冬季。综上所述，学龄前儿童尿钠排泄水平较高，钾排泄水平较低，且个体内部和个体之间存在较大差异。
In this study, the authors measured sodium and potassium concentrations in spot urine samples of preschool children on multiple days, and evaluated individual, daily, and seasonal effects. A total of 104 healthy preschool children aged 4 to 5 years were studied. Urine samples were collected from the first urine of the day after waking for three consecutive days (Monday–Wednesday) four times a year (spring, summer, autumn, winter). The authors estimated the daily urine volume as 500 mL and daily creatinine excretion as 300 mg, and used these to calculate daily sodium and potassium excretion levels. Daily sodium and potassium excretion levels and sodium to potassium ratios were highly variable. The coefficient variant in the children's excretion levels were also high within and between individuals. Sodium excretion levels and sodium to potassium ratios were higher on Monday (weekend sodium intakes) than Tuesday. Season had no effect on sodium or potassium excretion levels, but the sodium to potassium ratio was higher in summer than in winter. In conclusion, levels of urinary sodium excretion are comparatively high and those of potassium are low in preschool students, with high variability within and between individuals.
影响因子：
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作者：
Anderson CA;Appel LJ;Okuda N;Brown IJ;Chan Q;Zhao L;Ueshima H;Kesteloot H;Miura K;Curb JD;Yoshita K;Elliott P;Yamamoto ME;Stamler J
通讯作者：
Stamler J