PRL and fatty liver disease: Likewise, females with hepatic steatosis or significant fibrosis presented remarkably lower serum PRL levels in the NP group (P < 0.001, P = 0.023, respectively) but higher serum PRL levels in the HP group (all P < 0.001) as opposed to their counterparts (Figures 2E, G), which was not shown among males (Figures 2D, F).