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Protective effect of PCEB on thyroid hormones: (a) T3 and (b) T4; mean ± SD (n = 6). Means with different letters (a–d) indicate significance at P < 0.05, I: control; II: CCl4 1 mL/kg b.w.; III: CCl4+Silymarin; IV: CCl4+PCEB 200 mg/kg b.w.; V: CCl4+PCEB 400 mg/kg b.w.; VI: PCEB 400 mg/kg b.w.; VII: vehicle control.
