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The risk factors for drug-induced liver injury (DILI) involve host factors (including general non-genetic factors and idiosyncratic genetic and immune factors), drug-related factors, and environmental factors. The pathogenesis of DILI can be classified as intrinsic (or direct) hepatotoxicity, idiosyncratic hepatotoxicity, and indirect hepatotoxicity, as well as tumorigenicity and carcinogenicity of some drugs to the liver. The pathogenesis of different types of hepatotoxicity not only has significant differences, but also has internal correlation at multiple links. The three-step model centered on mitochondrial permeability transition (MPT) and a two-stage model with liver cell regeneration and liver tissue repair capacity as the determinants of different outcomes display the mechanism progress of DILI from different perspectives. Clarification of the complex pathogenesis of DILI needs long-term collection of clinical cases and systematic studies, which is of great significance for the scientific prevention, diagnosis, and treatment of DILI. [ABSTRACT FROM AUTHOR]

In March 2022, EASL released a new version of the clinical practice guidelines on haemochromatosis. Haemochromatosis is characterized by elevated transferrin saturation（TSAT） and progressive iron overload mainly involving the liver, and early diagnosis and venesection can prevent liver cirrhosis, hepatocellular carcinoma, diabetes, arthritis, and other complications. For patients with p.Cys282 Tyr homozygous mutation of the hemochromatosis gene HFE, haemochromatosis can be diagnosed if serum iron parameters show TSAT >45% and ferritin >200 μg/L in female patients, or TSAT >50% and ferritin >300 μg/L in male patients and postmenopausal female patients. If a patient has elevated TSAT and ferritin and belongs to other HFE genotypes, magnetic resonance or liver biopsy is needed to confirm iron overload in the liver. Liver fibrosis stage and damage to other organs should be carefully assessed at the time of diagnosis, which will help to determine management strategies. Hepatocellular carcinoma should be screened for patients with progressive liver fibrosis. The goal of venesection is to achieve ferritin <50 μg/L during the induction stage and ferritin <100 μg/L during the maintenance stage. [ABSTRACT FROM AUTHOR]