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PCNA expression in testes of the different experimental groups (H&E X200). a Control group, (b) POS (200 mg/kg) and (c) POS (400 mg/kg) treated groups; showing strong immunopositive reaction in spermatogenic series. d ACR treated group showing very weak immune-positive reaction in some seminiferous tubules (arrows). e ACR + POS (200 mg/kg) and (f) ACR + POS (400 mg/kg) treated groups showing strong immunopositive reaction in spermatogenic series (arrows) and interstitial cells
