産後の母体血清,母乳中のケイ素含有量

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The silicon (Si) concentrations in maternal serum and breast milk were determined for 38 healthy postpartal women, 19 primiparae and 19 multiparae, by using inductively coupled plasma-atomic emission spectrometry (ICP-AES).The results are as follows:1. The geometric mean (95% confidence interval) of the Si level in maternal serum was 9.7μmol/l (8.8-10.8μmol/l) at 1 week after delivery, and 8.1μmol/l (7.1-9.2μmol/l) at 1 month after delivery. The Si level at 1 week after delivery was significantly (p<0.05) higher than that at 1 month after delivery.2. The geometric mean of the Si level (95% confidence interval), in breast milk was 6.3μmol/l (5.4-7.3μmol/l) at 1 week after delivery, and 6.1μmol/l (5.1-7.2μmol/l)at 1 month after delivery.3. At both 1 week and 1 month after delivery, a significant correlation was not found between the Si concentrations in maternal serum and in breast milk.