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Related Concept Videos

Drug Metabolism: Phase II Reactions01:14

Drug Metabolism: Phase II Reactions

Phase II reactions are essential for the detoxification and elimination of drugs from the body. These reactions involve the conjugation of parent drugs or their phase I metabolites with endogenous molecules, resulting in more hydrophilic drug conjugates. The primary conjugation reactions in this phase are sulfation and glucuronidation. Both sulfation and glucuronidation typically produce biologically inactive metabolites. However, in some cases involving prodrugs, active metabolites may be...
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Glutathione, a tripeptide made up of glutamate, cysteine, and glycine, is a critical player in the detoxification of drugs and xenobiotics via a process known as glutathione conjugation or mercapturic acid formation. This phase II biotransformation reaction involves the covalent binding of glutathione to a drug or its metabolite, enhancing the compound's water solubility and enabling its excretion.
Several distinctive characteristics distinguish glutathione conjugation from other phase II...
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Hepatic Drug Excretion: Influencing Factors

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Hepatic impairment, characterized by decreased liver function, does not uniformly mandate adjustments in drug dosage. Whether dosage modifications are necessary depends on various factors related to the drug's metabolism and elimination pathways. If a drug is primarily excreted via the kidneys and bypasses significant hepatic processing, if it undergoes minimal metabolic transformation in the liver, or if it is volatile and primarily expelled through the lungs, dose adjustments may not be...
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Phase II biotransformation reactions are essential for detoxifying and eliminating xenobiotics, including many pharmaceutical compounds. These reactions typically involve conjugation, the covalent attachment of polar endogenous groups such as glucuronic acid, sulfate, methyl, or acetyl moieties to functional groups introduced during Phase I metabolism. The resulting conjugates are more water-soluble, enabling efficient renal or biliary excretion.The major classes of Phase II enzymes include...
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Induction of Drug-Induced, Autoimmune Hepatitis in BALB/c Mice for the Study of Its Pathogenic Mechanisms
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Published on: May 29, 2020

Suloctidil-induced hepatotoxicity.

M W Chung1, R A Komorowski, R R Varma

  • 1Department of Medicine, Medical College of Wisconsin, Froedtert Memorial Lutheran Hospital, Milwaukee.

Gastroenterology
|August 1, 1988
PubMed
Summary
This summary is machine-generated.

Suloctidil, a drug for dementia and thrombotic disorders, can cause liver damage (hepatotoxicity). This case highlights the importance of recognizing suloctidil-induced hepatotoxicity through liver tests and biopsy.

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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

Area of Science:

  • Pharmacology
  • Hepatology
  • Clinical Medicine

Background:

  • Suloctidil is under investigation for dementia and thrombotic disorders.
  • Hepatotoxicity reports for suloctidil are primarily from European literature.
  • Histologic data on suloctidil-induced liver injury is limited and often in French.

Observation:

  • This report details a case of suloctidil-induced hepatotoxicity.
  • The case was documented using serum liver biochemical tests.
  • Liver biopsy provided crucial histologic evidence.

Findings:

  • Histologic examination revealed focal hepatocyte necrosis.
  • Mild Kupffer cell hyperplasia was observed.
  • Features were consistent with mild acute hepatitis.

Implications:

  • This case contributes to understanding suloctidil's potential adverse effects.
  • It underscores the need for vigilance regarding drug-induced liver injury.
  • Further research may be warranted to fully characterize suloctidil hepatotoxicity.