Figure 1: Progesterone induced scolex evagination of Taenia solium in a concentration-independent pattern (a) maintained along the time (b). On the contrary, RU486 exerted a potent concentration-dependent evagination-inhibitory effect (a), even in presence of progesterone and during the total 20 days of in vitro culture (b). In concentration-response curves (panel a), cysticerci treated with vehicle are referred as concentration zero. Data are represented as mean + / SD; 𝑃 < . 0 5 .