However, there were also inconsistent conclusion, such as Bertol et.al found that serum iron was not correlated with biopsy-proven NAFLD staging7; serum iron has also been reported to be positively associated with alanine aminotransferase (ALT) concentration based on the third U.S. National Health and Nutrition Examination Survey (NHANES III)8. The gene discussed is GPT; the disease is metabolic dysfunction-associated steatotic liver disease.