The role of drug interactions in interindividual variability of drug metabolism in man

1977 ◽  
Vol 297 (S1) ◽  
pp. S35-S36 ◽  
Author(s):  
F. Sj�qvist
Keyword(s):  
Drug Metabolism ◽  
Drug Interactions ◽  
Interindividual Variability

Role of Altered Drug Metabolism in Virus-Drug Interactions

1991 ◽  
Vol 13 (6) ◽  
pp. 1256-1257 ◽  
Author(s):  
K. W. Renton ◽  
A. E. Cribb ◽  
S. Armstrong
Keyword(s):  
Drug Metabolism ◽  
Drug Interactions

Drug Interactions with Angiotensin Receptor Blockers: Role of Human Cytochromes P450

2016 ◽  
Vol 17 (7) ◽  
pp. 681-691 ◽  
Author(s):  
Ruirui Yang ◽  
Zhiqiang Luo ◽  
Yang Liu ◽  
Mohan Sun ◽  
Ling Zheng ◽  
...  
Keyword(s):  
Drug Interactions ◽  
Cytochromes P450 ◽  
Angiotensin Receptor Blockers ◽  
Angiotensin Receptor ◽  
Receptor Blockers

Hepatoprotective Role of Berberine on Doxorubicin Induced Hepatotoxicity - Involvement of Cyp

2020 ◽  
Vol 21 (7) ◽  
pp. 541-547
Author(s):  
Bao Sun ◽  
Yue Yang ◽  
Mengzi He ◽  
Yanan Jin ◽  
Xiaoyu Cao ◽  
...  
Keyword(s):  
Drug Metabolism ◽  
Cardiac Tissue ◽  
Liver Toxicity ◽  
Elevated Serum ◽  
Similar Response ◽  
Wide Range ◽  
Cytokine Levels ◽  
Major Organ ◽  
Anti Oxidant

Background: The liver is one of the major organ involved in drug metabolism. Cytochrome P450s are predominantly involved in drug metabolism. A wide range of CYPs have been reported in the liver which have been involved in its normal as well as in diseased conditions. Doxorubicin, one of the most potent chemotherapeutic drugs, although highly efficacious, also has adverse side effects, with its targets being liver and cardiac tissue. Objective: The study aims to evaluate the reversal potentials of berberine on Doxorubicin induced cyp conversion. Methodology: In the present study, the interplay between anti-oxidants, cytochrome and inflammatory markers in DOX induced liver toxicity and its possible reversal by berberine was ascertained. Results: DOX administration significantly elevated serum as well as tissue stress, which was reverted by berberine treatment. A similar response was observed in tissue inflammatory mediators as well as in serum cytokine levels. Most profound reduction in the cytochrome expression was found in Cyp 2B1, 2B2, and 2E1. However, 2C1, 2C6, and 3A1 although showed a decline, but it did not revert the expression back to control levels. Conclusion: It could be concluded that berberine may be an efficient anti-oxidant and immune modulator. It possesses low to moderate cytochrome modulatory potentials.

Biology of Heme: Drug Interactions and Adverse Drug Reactions with CYP450

2019 ◽  
Vol 18 (23) ◽  
pp. 2042-2055 ◽  
Author(s):  
Neeraj Kumar ◽  
Heerak Chugh ◽  
Damini Sood ◽  
Snigdha Singh ◽  
Aarushi Singh ◽  
...  
Keyword(s):  
Cytochrome P450 ◽  
Drug Metabolism ◽  
Drug Interactions ◽  
Adverse Drug Reactions ◽  
Genetic Defects ◽  
Drug Reactions ◽  
Detailed Structure ◽  
Synthesis And Degradation ◽  
Porphyrin Rings

Heme is central to functions of many biologically important enzymes (hemoproteins). It is an assembly of four porphyrin rings joined through methylene bridges with a central Fe (II). Heme is present in all cells, and its synthesis and degradation balance its amount in the cell. The deregulations of heme networks and incorporation in hemoproteins lead to pathogenic state. This article addresses the detailed structure, biosynthesis, degradation, and transportation associated afflictions to heme. The article is followed by its roles in various diseased conditions where it is produced mainly as the cause of increased hemolysis. It manifests the symptoms in diseases as it is a pro-oxidant, pro-inflammatory and pro-hemolytic agent. We have also discussed the genetic defects that tampered with the biosynthesis, degradation, and transportation of heme. In addition, a brief about the largest hemoprotein group of enzymes- Cytochrome P450 (CYP450) has been discussed with its roles in drug metabolism.

Food and drugs

2002 ◽  
Vol 55 (1-2) ◽  
pp. 5-12 ◽  
Author(s):  
Kornelija Djakovic-Svajcer
Keyword(s):  
Plasma Level ◽  
Drug Metabolism ◽  
Drug Interactions ◽  
Therapeutic Effect ◽  
Significant Influence ◽  
Plasma Concentrations ◽  
Chemical Properties ◽  
Therapeutic Index ◽  
Food Composition ◽  
Drug Bioavailability

Food can exert a significant influence on the effects of certain drugs. The interactions between food and drugs can be pharmacokinetic and pharmacodynamic. Pharmacokinetic interactions most often take place on absorption and drug metabolism levels. Absorption can be either accelerated or delayed, increased or decreased, while drug metabolism can be either stimulated or inhibited. The factors which influence food-drug interactions are as follows: composition and physic-chemical properties of drugs, the interval between a meal and drug intake and food composition. Food consistency is of lesser influence on drug bioavailability than food composition (proteins, fats, carbohydrates, cereals). Important interactions can occur during application of drugs with low therapeutic index, whereby the plasma level significantly varies due to changes in resorption or metabolism (e.g. digoxin, theophyllin, cyclosporin) and drugs such as antibiotics, whose proper therapeutic effect requires precise plasma concentrations.

Prevalence of drug–drug interactions in sarcoma patients: key role of the pharmacist integration for toxicity risk management

2021 ◽  
Author(s):  
Audrey Bellesoeur ◽  
Ithar Gataa ◽  
Anne Jouinot ◽  
Sarah El Mershati ◽  
Anne-Catherine Piketty ◽  
...  
Keyword(s):  
Risk Management ◽  
Drug Interactions ◽  
Toxicity Risk
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