摘要:In order to study the mechanism of the placental transfer of methylmercury, effect of 2-deoxy-D-glucose and deoxypyridoxine on the transfer of methylmercury to the fetus across the placenta was examined. Pregnant rats were divided into three groups, group A, given 2-deoxy-D-glucose and methylmercury, group B, given deoxypyridoxine and methylmercury, group C, given methylmercury alone. Mercury content in each placenta and fetus was determined. The ratio of fetal mercury content to placental mercury content in both A and B groups was significantly lower than that in C group. It was found that 2-deoxy-D-glucose and deoxypyridoxine inhibited placental transfer of methylmercury. Therefore, it was suggested that one of the mechanisms of the placental transfer of methylmercury was an active transport which was related to amino acid having SH group such as cysteine.
关键词:active transport;2-deoxy-D-glucose;deoxypyridoxine;placental transfer of methylmercury compound;pregnant rat;placenta;fetus