Price D A, Close G C, Fielding B A
Arch Dis Child. 1983 Jun;58(6):454-6. doi: 10.1136/adc.58.6.454.
Samples of saliva (4 in 24 hours), collected at monthly intervals for the first 6 months of life in 8 term infants by their mothers, were analysed for cortisol by radioimmunoassay. Values in the first month were more variable, daily mean values were greater, and amplitudes of variation were greater than in subsequent months. The circadian rhythm appeared by the third month.
8名足月儿的母亲在其出生后头6个月每月采集一次唾液样本(24小时内采集4次),通过放射免疫分析法检测皮质醇。第一个月的值变化更大,日均值更高,且变化幅度大于随后几个月。昼夜节律在第三个月出现。