Female sterility, oxidative stress and autoimmunity

The capacity of embryo implantation in uterine epithelium is a very complex process that depends on the qualities of the endometrium, as much of its receptivity as of its state. The free radicals and cytokines presents in the uterus at the moment of implantation play a decisive role at the time of allowing or no, a correct embryo implantation. The presence of this type of molecules has been described in different gynecological pathologies associated with sterility and, therefore, they reinforce the hypothesis on the key paper that these can play. In this revision it is tried to give a general vision on the paper of these molecules in the emryonic implantation as wel as in the appearance of autoimmunity.