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对90名哺乳妇女作母乳中25-羟维生素D(25-OHD)和1,25-二羟维生素D [1,25-(OH)_2D]的含量测定。母乳中的25-OHD和1,25-(OH)_2D浓度与分娩时的新生儿胎龄有一定的关系。早产儿母亲的母乳中的25-OHD浓度显著高于正常产儿母亲的母乳中的25-OHD浓度。而1,25-(OH)_2D浓度在早产儿母亲的母乳中也有升高的倾向,提示早产可引起母体乳腺对25-OHD分泌及转运的改变。
Ninety lactating women were tested for the content of 25-hydroxyvitamin D (25-OHD) and 1,25-dihydroxyvitamin D [1,25- (OH) _2D] in breast milk. 25-OHD in breast milk and 1,25- (OH) _2D concentration and childbirth at birth have a certain relationship between gestational age. The 25-OHD concentration in the mother’s milk of premature babies is significantly higher than the 25-OHD concentration in the mother’s milk of normal children. The 1,25- (OH) _2D concentration in mothers of premature infants also have a tendency to increase, suggesting that premature labor can cause maternal 25-OHD secretion and transport changes.