GPT and liver failure: Additionally, serum biochemical analysis showed that SeCD injection did not change serum alanine aminotransferase (ALT) and serum aspartate aminotransferase (AST), two disease markers for liver failure, serum blood urea nitrogen (BUN) and serum creatinine (CRE), two disease markers for renal injury, as well as serum creatine kinase‐MB (CK‐MB) and serum lactate dehydrogenase‐L (LDH‐L), two disease markers of cardiac damage (Figure 3b).