Cytochrome P450-mediated bioactivation of mefenamic acid to quinoneimine intermediates and inactivation by human glutathione S-transferases.

Author: CommandeurJan N M, VenkataramanHarini, VermeulenNico P E, den BraverMichiel W

Paper Details 
Original Abstract of the Article :
Mefenamic acid (MFA) has been associated with rare but severe cases of hepatotoxicity, nephrotoxicity, gastrointestinal toxicity, and hypersensitivity reactions that are believed to result from the formation of reactive metabolites. Although formation of protein-reactive acylating metabolites by pha...See full text at original site
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引用元:
https://doi.org/10.1021/tx500288b

データ提供:米国国立医学図書館(NLM)

Mefenamic Acid: Unraveling the Mechanisms of Toxicity

The use of [mefenamic acid (MFA)] is widespread, but its potential for [hepatotoxicity, nephrotoxicity, gastrointestinal toxicity, and hypersensitivity reactions] has raised concerns. This study delves into the [cytochrome P450 (CYP)-mediated bioactivation] of MFA, investigating the formation of [reactive metabolites] and their inactivation by [human glutathione S-transferases (hGSTs)]. The authors demonstrate that MFA undergoes oxidative bioactivation by CYP enzymes, resulting in the formation of [quinoneimine intermediates]. These reactive metabolites can potentially contribute to MFA-associated toxicity. The study also highlights the role of hGSTs in detoxifying these reactive metabolites, suggesting a potential mechanism for preventing toxicity.

A Closer Look at Drug Metabolism: Understanding the Risks

This study provides valuable insights into the complex metabolic processes that can lead to drug toxicity. The authors' findings highlight the importance of understanding the metabolic pathways of drugs and the potential for formation of reactive metabolites. This research underscores the need for careful consideration of potential risks and benefits when prescribing MFA, especially for patients with pre-existing liver or kidney conditions.

Navigating the Complexities of Drug Metabolism

This research delves into the intricacies of drug metabolism, a crucial aspect of drug safety. The authors' study demonstrates how CYP enzymes can activate drugs into reactive metabolites, potentially contributing to toxicity. This research highlights the importance of individual variability in drug metabolism and the need for tailored approaches to drug therapy.

Dr.Camel's Conclusion

This research is like a journey through a vast desert landscape, revealing the intricate pathways of drug metabolism. It underscores the importance of understanding these processes in order to mitigate potential risks and ensure patient safety. The authors' work is a valuable contribution to our understanding of drug toxicity and its prevention.

Date :
  1. Date Completed 2015-08-21
  2. Date Revised 2014-12-16
Further Info :

Pubmed ID

25372302

DOI: Digital Object Identifier

10.1021/tx500288b

Related Literature

SNS
PICO Info
in preparation
Languages

English

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