研究45对撒尼族新生儿、孕母及30例非孕妇女的血清甲状腺激素水平及其相关性,发现:①新生儿(脐血)组甲状腺激素浓度与孕母组间有极显著差异,具有活性高者浓度低、活性低者浓度高的特征;②孕母组与非孕组比较,前者TT_4偏高,FT_3,FT_4偏低,其FT_3降低有显著意义;③脐血与孕母血中的FT_3,FT_4值完全无相关性,相对浓度亦各异,据此,对胎盘能通透FT_3,FT4的结论提出质疑。 To study the serum levels of thyroid hormones (45) and their correlations with Seri 45 newborns, pregnant mothers and 30 non-pregnant women, we found: (1) There was a significant difference between thyroid hormone concentrations in neonates (cord blood) The activity of TT_4 was higher, the FT_3 and FT_4 were lower and the FT_3 was lower in the pregnant group than those in the non-pregnant group. ③The umbilical cord blood and maternal blood In the FT_3, FT_4 value is completely irrelevant, the relative concentration is also different, accordingly, the conclusions of the placenta can penetrate FT_3, FT4 questioned.