Genetic Model of iron deficiency in the Mouse Liver. Iron overload causes the generation of reactive oxygen species, which can lead to lasting damage to the liver and other organs. We studied the effects of iron deficiency and iron overload on the hepatic transcriptional and metabolomic profile in mouse models. We studied effect of different iron deficiency by HJV gene knockout mice on liver transcriptome using whole genome transcriptome profiling.
Question: Extract the tissues mentioned in the above texts and return None if there are no tissues mentioned.