title: Protective effects of pentoxifylline on acute liver injury induced by thioacetamide in rats.
abstract: Pentoxifylline (PTX) is a non-selective phosphodiesterase inhibitor with the effects of antioxidation, anti-inflammation and anti-fibrosis that has been shown to induce damage in liver. The purpose of this study is to investigate the effects and possible mechanisms of PTX on thioacetamide (TAA)-induced acute liver injury in rats. Male Sprague-Dawley (SD) rats were divided into four groups: control, PTX, TAA and PTX+TAA treated groups. Rats were administrated TAA together with or without PTX for a week and sacrificed 24 h after the last intragastric administration of PTX. Histopathological analysis was carried out. The liver function, the indices of oxidative stress including malondialdehyde (MDA), superoxide dismutase (SOD), and glutathione (GSH) in liver tissues, and pro-inflammatory cytokines expressions were examined. The mRNA level of NF-κB p65 in liver was also determined. PTX significantly attenuated TAA-induced liver injury. The serum transaminase and MDA levels were reduced while the levels of SOD and GSH were increased, as compared with the TAA-treated group. PTX also remarkably suppressed the secretions of pro-inflammatory cytokines and the nuclear factor-κB (NF-κB) activation induced by TAA. In addition, the histopathological analysis showed that the range and degree of liver tissue lesions were improved obviously in PTX treated group. Pentoxifylline could ameliorate the effects of thioacetamide-induced acute liver injury in rats by inhibiting oxidative stress, expressions of pro-inflammatory cytokines and NF-κB activation.
authors.affiliation: Department of Gastroenterology, Second Affiliated Hospital of Xi'an Jiaotong University Xi'an, China.
authors.forename: Miaosha
authors.initials: M
authors.lastname: Luo
authors.affiliation: Department of Gastroenterology, Second Affiliated Hospital of Xi'an Jiaotong University Xi'an, China.
authors.forename: Lei
authors.initials: L
authors.lastname: Dong
authors.affiliation: Department of Gastroenterology, Second Affiliated Hospital of Xi'an Jiaotong University Xi'an, China.
authors.forename: Jing
authors.initials: J
authors.lastname: Li
authors.affiliation: Department of Gastroenterology, Second Affiliated Hospital of Xi'an Jiaotong University Xi'an, China.
authors.forename: Yan
authors.initials: Y
authors.lastname: Wang
authors.affiliation: Department of Gastroenterology, Second Affiliated Hospital of Xi'an Jiaotong University Xi'an, China.
authors.forename: Boxin
authors.initials: B
authors.lastname: Shang
mesh_terms: D000818:Animals; D056486:Chemical and Drug Induced Liver Injury / Q000188:drug therapy* / Q000378:metabolism; D016207:Cytokines / Q000378:metabolism; D005978:Glutathione / Q000378:metabolism; D008099:Liver / Q000378:metabolism; D008297:Male; D008315:Malondialdehyde / Q000378:metabolism; D016328:NF-kappa B / Q000378:metabolism; D018384:Oxidative Stress / Q000187:drug effects; D010431:Pentoxifylline / Q000494:pharmacology / Q000627:therapeutic use*; D020011:Protective Agents / Q000494:pharmacology / Q000627:therapeutic use*; D051381:Rats; D017207:Rats, Sprague-Dawley; D013482:Superoxide Dismutase / Q000378:metabolism; D013853:Thioacetamide
chemical_list: D016207:Cytokines; D016328:NF-kappa B; D020011:Protective Agents; D013853:Thioacetamide; D008315:Malondialdehyde; D013482:Superoxide Dismutase; D005978:Glutathione; D010431:Pentoxifylline
keywords: Acute liver injury; NF-κB; oxidative stress; pentoxifylline; pro-inflammatory cytokines