RT Journal Article T1 Antioxidant and Hepatoprotective Effects of Croton hypoleucus Extract in an Induced-Necrosis Model in Rats A1 Urrutia Hernández, Thania Alejandra A1 Santos López, Jorge Arturo A1 Benedí González, Juana María A1 Sánchez Muniz, Francisco José A1 Velázquez González, Claudia A1 De la O-Arciniega, Minarda A1 Jaramillo Morales, Osmar Antonio A1 Bautista, Mirandeli AB The aim of this study was to evaluate the antioxidant and hepatoprotective activity of Croton hypoleucus (EC). The present work reports the first pharmacological, toxicological, and antioxidant studies of EC extract on liver injury. Liver necrosis was induced by thioacetamide (TAA). Five groups were established: Croton Extract (EC), thioacetamide (TAA), Croton extract with thioacetamide (EC + TAA), vitamin E with thioacetamide (VE + TAA) and the positive control and vehicle (CT). For EC and EC + TAA, Wistar rats (n = 8) were intragastrically pre-administered for 4 days with EC (300 mg/kg.day) and on the last day, EC + TAA received a single dose of TAA (400 mg/kg). At 24 h after damage induction, animals were sacrificed. In vitro activity and gene expression of superoxide dismutase (SOD), catalase (Cat), and Nrf2 nuclear factor were measured. The results show that EC has medium antioxidant properties, with an IC50 of 0.63 mg/mL and a ferric-reducing power of 279.8 µM/mg.Additionally, EC reduced hepatic damage markers at 24 h after TAA intoxication; also, it increased SOD and Cat gene expression against TAA by controlling antioxidant defense levels. Our findings demonstrated the hepatoprotective effect of EC by reducing hepatic damage markers and controlling antioxidant defense levels. Further studies are necessary to identify the mechanism of this protection. PB MDPI SN 1420-3049 YR 2019 FD 2019-07-11 LK https://hdl.handle.net/20.500.14352/12722 UL https://hdl.handle.net/20.500.14352/12722 LA eng NO CONACYT, Mexico DS Docta Complutense RD 9 abr 2025