Proliferation of sheep peripheral blood mononuclear cells (PBMCs) stimulated with concanavalin A (ConA) and lipopolysaccharide (LPS) and cultured with the unsaponified fraction (UP), the acetylated unsaponified fraction (AUP), and the total lipids fraction (TL) extracted and purified from C. sorokiniana. For each treatment, 0.4 mg/mL and 0.8 mg/mL were tested on PBMCs. PBMCs with ConA and LPS were stimulated cells (SC), and PBMCs without ConA and LPS were unstimulated cells (USC). Data were analyzed by one-way ANOVA and Fisher post-hoc test and are presented as % proliferation exerted by each tested extract with respect to USC proliferation (100%). a, b, c indicate p < 0.05.