D-galactosamine (Ga1N), a well-known hepatotoxic agent, induces liver injury resembling human viral hepatitis usually followed by the regeneration processes. Hepatocyte growth factor (HGF) is a cytoprotective factor involved in regeneration of the injured liver. However, the effects of exogenous HGF remain poorly understood because of its rapid clearance by the liver. This study was undertaken to find out whether HGF and fish oil facilitated the reversal of GalN-induced toxicity in primary hepatocyte cultures of albino mice. Primary hepatocytes cultures were established from mice liver tissue. The study involved the effect of GalN on hepatocytes and also determination of the protective role of fish oil on hepatocyte cultures. Cell proliferation tests and liver function tests were done to determine the degree of GalN effect on cultured hepatocytes. Biochemical parameters of cultured cells were also performed to check the recovery effect of fish oil on GalN-induced hepatotoxicity. The combination of Ga1N and HGF triggered cell proliferation in primary hepatocyte cultures specifying activation of regeneration through HGF. However, hepatocyte function tests revealed that although the regeneration process was initiated, its function was slightly altered by Ga1N. Therefore, to control its effect at a functional level, we tested fish oil doses and indicated its influence. This work can be a useful tool for studying hepatotoxic-induced cell regeneration in vitro; moreover, the data indicates that HGF and fish oil has hepatoprotective activity against Ga1N and may aid as a suitable adjuvant in clinical conditions associated with liver damage.
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