Major flaw in miscarriage test

 作者:公羊邻     |      日期:2019-03-02 02:08:05
By Linda Geddes EXPENSIVE fertility treatments designed to suppress the immune system and supposedly help women who repeatedly suffer miscarriages early in pregnancy now appear to be based on bad science. A new study, the largest of its kind so far, shows that the blood test used to determine whether women should be given these treatments is ineffective. The controversy centres around immune cells called natural killer (NK) cells. NK cells belonging to the mother are found close to the outermost layers of the embryo,