SERPINE1 and metabolic dysfunction-associated steatotic liver disease: The results showed that no matter whether it was the plasm level of TPA, PAI-1, or TPA/PAI-1, there were significant differences between the NAFLD and the non-NAFLD patients, which suggests that the plasma levels of TPA, PAI-1, or TPA/PAI-1 have the potential to be regarded as indicators for NAFLD diagnosis.