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Single dose intravenous thioacetamide administration as a model of acute liver damage in rats
Author(s) -
Chen TseMin,
Subeq YiMaun,
Lee RuPing,
Chiou TzyyWen,
Hsu BangGee
Publication year - 2008
Publication title -
international journal of experimental pathology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.671
H-Index - 72
eISSN - 1365-2613
pISSN - 0959-9673
DOI - 10.1111/j.1365-2613.2008.00576.x
Subject(s) - thioacetamide , medicine , bilirubin , albumin , liver injury , nitric oxide synthase , necrosis , blood urea nitrogen , pharmacology , endocrinology , nitric oxide , creatinine
Summary Thioacetamide (TAA) has been used extensively in the development of animal models of acute liver injury. Frequently, TAA is administered intraperitoneally to induce liver damage under anaesthesia. However, it is rarely administered by intravenous injection in conscious rats. The experiments in this study were designed to induce acute liver damage by single intravenous injection of TAA (0, 70 and 280 mg/kg) in unrestrained rats. Biochemical parameters and cytokines measured during the 60‐h period following TAA administration, included white blood cells (WBC), haemoglobulin (Hb), platelet, aspartate transferase (GOT), alanine transferase (GPT), total bilirubin (TBIL), direct bilirubin (DBI), albumin, ammonia (NH3), r‐glutamyl transpeptidase (r‐GT), tumour necrosis factor‐α (TNF‐α) and interleukin‐6 (IL‐6). Rats were sacrificed by decapitation 60 h after TAA administration and livers were removed immediately for pathology and immunohistochemical (IHC) examination. Another group of rats were sacrificed by decapitation 1, 6 and 24 h after TAA administration and livers were removed immediately for time course change of pathology and IHC examination. TAA significantly increased blood WBC, GOT, GPT, TBIL, DBIL, NH3, r‐GT, TNF‐α and IL‐6 levels but decreased the blood Hb, platelet and albumin level. The levels of histopathological damage in the liver after intravenous TAA administration were also increased with a dose‐dependent trend and more increased at 60 h after TAA administration. The levels of inducible nitric oxide synthase (iNOS) and nuclear factor‐κB (NF‐κB) detected by IHC in the liver after intravenous TAA administration were also increased with a dose‐dependent trend and more increased at 1 h after TAA administration. Single intravenous TAA administration without anaesthesia is a restorable animal model which may be used to investigate acute liver damage.