Related Experiment Video
Updated: Jan 12, 2026

Partial Lobular Hepatectomy: A Surgical Model for Morphologic Liver Regeneration
Published on: May 31, 2018
Hyperuricemia exacerbates acetaminophen hepatotoxicity via JNK activation and mitophagy reduction
Yan Liu1, Baizhao Peng2, Dexian Li2
1Department of Traditional Chinese Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong 510515, China; The Affiliated Traditional Chinese Medicine Hospital of Guangzhou Medical University, Guangzhou, Guangdong 510180, China; School of Laboratory Medicine and Biotechnology, Southern Medical University, Guangzhou, Guangdong 510515, China.
Abstract:
Acetaminophen (APAP) induced hepatotoxicity represents a classic form of drug-related liver injury and ranks among the most prevalent causes of acute liver failure globally. Underlying diseases can increase the risk factor of liver injury induced by APAP overdose. Hyperuricemia (HUA), a condition defined by an abnormally high serum uric acid (UA) concentration, is a recognized risk factor for various health conditions, such as gout, cardiovascular disease, metabolic syndrome, and chronic kidney disease. Additionally, HUA is also associated with liver disease, such as non-alcoholic fatty liver and hepatocellular carcinoma. However, the safe dosage of APAP for patients with HUA and the role of HUA in APAP-induced hepatotoxicity remain unclear. This study of a cohort derived from the UK Biobank showed that participants with long-term APAP intake had a 1.26(1.02-1.58) higher odds of developing liver failure than the control group. Importantly, people with HUA had a 1.44(1.12-1.84) higher odds, and those with HUA at baseline had a 1.66(1.06-2.61) higher odds of progressing to liver failure than those with normal UA. Furthermore, our data showed that HUA rats showed more severe hepatic necrosis and liver dysfunction than control rats following APAP injection. Mechanistic investigations revealed that HUA activated c-Jun N-terminal kinase (JNK) and reduced mitophagy to aggravate APAP-induced hepatocyte death. Taken together, this study indicates that HUA is a potential risk factor for APAP-induced hepatic injury, exacerbating hepatic cell death through JNK pathway activation and the suppression of mitophagy. These findings offer important insights for guiding APAP administration in patients with HUA.
More Related Videos
Related Concept Videos
Enhanced Elimination of Poison
Antidotes serve a crucial role in counteracting the effects of poison by inhibiting enzymes responsible for producing harmful drug metabolites. In some cases, these toxic metabolites can be neutralized by endogenous cosubstrates, which are maintained at specific concentrations to prevent interaction with cellular macromolecules and subsequent cell death.
Renal excretion is the...
Hepatic Drug Excretion: Influencing Factors
Effect of Hepatic Disease on Pharmacokinetics: Pathophysiologic Assessment and Liver Function Test
Phase II Reactions: Glucuronidation
Effect of Hepatic Disease on Pharmacokinetics: Active Drug, Metabolite and Fraction of Metabolized Drug
Pharmacokinetics in Obese Patients: Drug Metabolism and Excretion

