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[Silicon concentrations in maternal serum and breast milk in the postpartum period]
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 9.7 mumol/l (8.8-10.8 mumol/l) at 1 week after delivery, and 8.1 mumol/l (7.1-9.2 mumol/l) at 1 month after delivery. The Si level at 1 week after delivery was significantly (p less than 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 6.3 mumol/l (5.4-7.3 mumol/l) at 1 week after delivery, and 6.1 mumol/l (5.1-7.2 mumol/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.
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 9.7 mumol/l (8.8-10.8 mumol/l) at 1 week after delivery, and 8.1 mumol/l (7.1-9.2 mumol/l) at 1 month after delivery. The Si level at 1 week after delivery was significantly (p less than 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 6.3 mumol/l (5.4-7.3 mumol/l) at 1 week after delivery, and 6.1 mumol/l (5.1-7.2 mumol/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.