Previous studies have shown that PTH protects against liver damage, decreases alanine aminotransferase (ALT) and aspartate aminotransferase (AST) levels in a mouse with acute hepatitis induced by carbon tetrachloride or galactosamine, and upregulates the mRNA expressions of anti-microbial protein 1 (AP1) and nuclear factor kappa-B (NF-κB) in hepatoma cells [2]. This evidence concerns the gene GPT and Acute hepatitis.