Related Experiment Video
Updated: Jun 26, 2026
09:44
Generation of a Rat Model of Acute Liver Failure by Combining 70% Partial Hepatectomy and Acetaminophen
Published on: November 27, 2019
Acetaminophen hepatotoxicity and acute liver failure
Linda J Chun1, Myron J Tong, Ronald W Busuttil
1Albert Einstein College of Medicine, USA.
Journal of Clinical Gastroenterology
|January 27, 2009
Summary
Acetaminophen overdose can cause liver damage and acute liver failure (ALF). N-acetylcysteine is the primary treatment, while liver transplantation is crucial for advanced ALF cases.
Area of Science:
- Toxicology
- Hepatology
- Pharmacology
Background:
- Acetaminophen overdose is a leading cause of acute liver failure (ALF) in the US and UK.
- The incidence of acetaminophen-induced hepatotoxicity is increasing in the United States.
- Acetaminophen-induced hepatotoxicity poses a significant public health concern.
Purpose of the Study:
- To review the causes of acetaminophen-induced hepatotoxicity.
- To summarize the current management strategies for acetaminophen-induced hepatotoxicity and ALF.
- To provide an overview of the latest information on this critical medical condition.
Main Methods:
- Literature review of existing studies on acetaminophen hepatotoxicity and ALF.
- Analysis of current treatment protocols and therapeutic interventions.
- Synthesis of information on epidemiological trends and clinical outcomes.
Main Results:
- N-acetylcysteine is identified as the most effective antidote to prevent liver failure progression.
- Liver transplantation is highlighted as the only definitive treatment for advanced ALF.
- The review consolidates current knowledge on the pathophysiology and clinical management.
Conclusions:
- Prompt administration of N-acetylcysteine is vital for managing acetaminophen overdose.
- Early recognition and intervention are crucial to improve patient outcomes.
- Liver transplantation remains a critical option for patients with severe, irreversible liver damage.
Related Concept Videos
01:22Effect of Hepatic Disease on Pharmacokinetics: Pathophysiologic Assessment and Liver Function Test
In clinical practice, the direct measurement of hepatic blood flow to evaluate liver function presents significant challenges due to the intricate and specialized nature of the necessary techniques. Consequently, healthcare professionals often rely on empirical estimates derived from thorough patient examinations and liver function tests to gauge liver health. Among the tools at their disposal, the Child–Pugh and MELD scoring systems stand out for their ability to categorize and assess the...
01:24Drug Toxicity: Dose-Dependent Reactions
Drug toxicities can be stratified into pharmacological, pathological, or genotoxic based on their mechanisms. The incidence and severity of these toxicities generally increase with the drug's concentration in the body and exposure time.Pharmacological toxicity is evident when the therapeutic effects of drugs overshoot into adverse reactions in a predictable, dose-dependent manner. Central nervous system (CNS) depression from barbiturates is a classic example, with effects escalating from...
01:26Effect of Hepatic Disease on Pharmacokinetics: Drug Dosing and Hepatic Blood Flow
Chronic liver disease significantly impacts drug metabolism due to alterations in hepatic blood flow and enzyme accessibility. This disruption affects the body's pharmacokinetics—the movement and processing of drugs within the system. Key enzymes crucial for metabolizing medications become less accessible, changing how drugs are processed and utilized. Furthermore, liver disease influences the synthesis of plasma proteins, such as albumin and globulins, which play critical roles in drug binding...
01:00Drug Toxicity: Overview
Drug toxicity quantifies the harm a compound causes to an organism, varying by dose and potentially impacting whole systems or specific organs like the liver. Toxic reactions may arise from venomous insect or spider bites, with effects ranging from mild symptoms to severe outcomes such as brain damage or death. Common forms of acute poisoning include ethanol intoxication and overdose of pain or fever medications, with substances like GHB and heroin being particularly lethal at doses close to...
01:29Hepatic Encephalopathy
DefinitionHepatic encephalopathy is a reversible neurologic syndrome that results from advanced liver dysfunction or portosystemic shunting. It leads to disturbances in cognition, behavior, and motor function due to the brain’s exposure to gut-derived toxins that the liver fails to detoxify.EtiologyThis condition develops either in the setting of acute fulminant hepatitis or progressively during chronic liver disease, such as cirrhosis and portal hypertension. Portosystemic shunting—including...
01:30Drug toxicity: Drug–Drug Interaction
Drug–drug interactions can precipitate toxicity through multiple mechanisms. Absorption interactions alter how drugs enter the body, exemplified when ranitidine increases the absorption of basic drugs, while cholestyramine decreases the levels of propranolol. Protein binding interactions occur when drugs share the same binding sites on plasma proteins. Drugs like aspirin and warfarin, when bound in excess, can lead to increased free drug concentrations, enhancing the potential for...