use of a means for the stabilization of the fetus to prevent infections caused by pregnancy

摘要

The safe fetus fixation enhancer to stabilize the intrauterine fixation of a fetus contains a bacterial strain of genus Bifidobacterium having an effect of augmenting IgA production as the effective ingredient. The effect of augmenting IgA production is called IgA induction potential, which potential activates and enhances the action of IgA production cells producing secretory-type IgA against antigen. When the fetus fixation enhancer is administered to a mother animal on pregnancy or on the schedule of pregnancy, the action of the secretory-type IgA augmented and produced in the mother body for preventing infection is exerted to prevent and avoid the adverse effects of infectious diseases possibly causing the deciduation of an embryo or a fetus from the uterine wall, whereby the intrauterine fixation of the fetus can be stabilized.