Figure 4: TsPR protein detection in T. solium. A main band of approximately 116 KDa, equivalent to TsPR was detected in T. solium (a). This TsPR matches to the molecular weight of PR-B isoform from rat uterus, but not to PR-A ( 8 7  KDa), where no protein bands in the parasite were observed (a). TsPR protein was significantly up-regulated by RU486 alone, but not by progesterone and the combination between progesterone and RU486 (b). 𝛼 -tubulin was used as control constitutive protein. Data are represented as mean + / SD; 𝑃 < . 0 5 .