Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Effect of Hepatic Disease on Pharmacokinetics: Pathophysiologic Assessment and Liver Function Test01:22

Effect 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...
Effect of Hepatic Disease on Pharmacokinetics: Drug Dosing and Hepatic Blood Flow01:26

Effect 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...
Drug Toxicity: Dose-Dependent Reactions01:24

Drug 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...
Drug toxicity: Idiosyncratic Reactions01:16

Drug toxicity: Idiosyncratic Reactions

Idiosyncratic drug reactions represent abnormal chemical responses that vary significantly among individuals, ranging from extreme sensitivity to low doses to insensitivity to high doses. These reactions often occur due to the drug's covalent binding with serum proteins, forming a foreign hapten that triggers an immunotoxicological response. The variability in drug reactions has a strong pharmacogenetic foundation, with genetic differences crucial in how individuals metabolize drugs. For...
Drug toxicity: Drug–Drug Interaction01:30

Drug 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...
Hepatic Drug Excretion: Enterohepatic Cycling01:17

Hepatic Drug Excretion: Enterohepatic Cycling

Enterohepatic cycling involves the active secretion of drugs and their metabolites into the bile via transporters in the canalicular membrane of hepatocytes. This secretion is an integral part of the digestive process, releasing these substances into the gastrointestinal (GI) tract.
Post-release drugs and metabolites can be reabsorbed into the body from the intestine. For conjugated metabolites like glucuronides, reabsorption requires enzymatic hydrolysis by intestinal microflora. This...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Garcinia cambogia, Either Alone or in Combination With Green Tea, Causes Moderate to Severe Liver Injury.

Clinical gastroenterology and hepatology : the official clinical practice journal of the American Gastroenterological Association·2021
Same author

The 2020 Nobel Prize for Medicine or Physiology for the Discovery of Hepatitis C Virus: A Triumph of Curiosity and Persistence.

Hepatology (Baltimore, Md.)·2021
Same author

HLA-B*35:01 and Green Tea-Induced Liver Injury.

Hepatology (Baltimore, Md.)·2020
Same author

The Origins of the Modern-Day Study of Drug Hepatotoxicity: Focus on Hyman J. Zimmerman.

Clinical liver disease·2020
Same author

United States Pharmacopeia (USP) comprehensive review of the hepatotoxicity of green tea extracts.

Toxicology reports·2020
Same author

A brief history of the treatment of viral hepatitis C.

Clinical liver disease·2019

Related Experiment Video

Updated: Jul 12, 2026

Human Liver Microphysiological System for Assessing Drug-Induced Liver Toxicity In Vitro
11:06

Human Liver Microphysiological System for Assessing Drug-Induced Liver Toxicity In Vitro

Published on: January 31, 2022

Herbal hepatotoxicity.

Leonard B Seeff1

  • 1National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, 31 Center Drive, Room 9A27, Bethesda, MD 20892, USA. seeffl@extra.niddk.nih.gov

Clinics in Liver Disease
|August 29, 2007
PubMed
Summary

Herbal products, often unregulated, pose a risk of liver injury (hepatotoxicity) due to unknown ingredients and contaminants. This review highlights commonly implicated herbal remedies linked to liver damage.

Area of Science:

  • Toxicology
  • Pharmacology
  • Hepatology

Background:

  • Herbal products are frequently unregulated and lack standardization, leading to concerns about potential toxicity.
  • Crude herbal formulations, often mixtures, present challenges in identifying specific ingredients and potential contaminants.
  • Hepatotoxicity associated with herbal products is a growing area of concern in clinical practice.

Purpose of the Study:

  • To provide an overview of commonly recognized herbal products associated with liver injury.
  • To review the evidence linking specific herbal remedies to hepatotoxicity.
  • To discuss the diagnostic challenges and uncertainties in attributing liver injury to herbal products.

Main Methods:

  • Literature review of reported cases and studies on herbal product-induced liver injury.

Related Experiment Videos

Last Updated: Jul 12, 2026

Human Liver Microphysiological System for Assessing Drug-Induced Liver Toxicity In Vitro
11:06

Human Liver Microphysiological System for Assessing Drug-Induced Liver Toxicity In Vitro

Published on: January 31, 2022

  • Identification of herbal products frequently cited in association with hepatotoxicity.
  • Analysis of the strength of evidence for causality in reported cases.
  • Main Results:

    • Several herbal products have been clearly implicated in causing liver injury.
    • The relationship between some herbal products and liver damage remains uncertain, often based on limited case reports.
    • Variability in product composition and potential for contamination contribute to the risk.

    Conclusions:

    • Healthcare providers should be aware of the potential for hepatotoxicity from various herbal products.
    • Further research is needed to clarify the specific risks associated with certain herbal remedies.
    • Careful patient history regarding herbal product use is crucial for diagnosing liver injury.