GPT and Hepatic fibrosis: A strong correlation was noted between the presence of fibrosis and increased AST levels in lean subjects (r = 0.27, p = 0.019), whereas the obese individuals presented a strong correlation between both AST (r = 0.37, p < 0.001) and ALT (r = 0.34, p < 0.001) and the presence of liver fibrosis.