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- W2119673523 abstract "Resume Objectif : Discuter de l’importance des interactions medicamenteuses reliees aux isoenzymes du cytochrome P450. Resume : La presence de plus en plus frequente de nombreux medicaments au sein des regimes therapeutiques augmente les risques d’interactions medicamenteuses chez les patients. Ainsi, une connaissance approfondie des systemes enzymatiques et des transporteurs membranaires qui regissent le devenir des medicaments dans l’organisme represente maintenant un atout necessaire permettant le developpement de soins pharmaceutiques de grande qualite. Parmi les systemes enzymatiques d’importance, notons que la superfamille des cytochromes P450 joue un role preponderant pour plus de 80 % des medicaments actuellement utilises en clinique. Par ailleurs, nous decouvrons rapidement le role important et complementaire de la glycoproteine-P qui limite l’absorption, facilite l’elimination par la bile ou l’urine et reduit la penetration de plusieurs medicaments au niveau du systeme nerveux central. Les niveaux d’expression et d’activite variable des P450 et de la glycoproteine- P s’expliquent non seulement par des facteurs exogenes mais aussi par des polymorphismes genetiques. Conclusion : Le pharmacien peut exercer un role important dans la gestion des interactions medicamenteuses reliees aux isoenzymes du cytochrome P450. Une meilleure comprehension des facteurs qui influencent la presence d’interactions medicamenteuses pourrait entrainer une reduction significative des effets indesirables, de l’inefficacite therapeutique et des toxicites. Abstract The more and more frequent occurrence of various drugs in therapeutic treatment plans increases the risks of drug interactions in patients. Thus, from now on, a sound knowledge of enzyme systems and of membrane transport that control the drug transformation process within the body represents a necessary factor in the development of the greatest quality of pharmaceutical care. Among the most important enzyme systems, lets point out that the superfamily of cytochrome P-450 plays a leading role in more than 80 % of the drugs presently in use within clinics. Moreover, the essential and complementary role of glycoprotein-P is rapidly noticeable. It limits the absorption, eases dumping through bile or urin, and reduces several drugs being taken in by the central nervous system. The levels of signs and the variable activity of P-450 and glycoprotein-P are self-explanatory not only by exogenous factors, but also by genetic polymorphism." @default.
- W2119673523 created "2016-06-24" @default.
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- W2119673523 date "2003-01-01" @default.
- W2119673523 modified "2023-10-03" @default.
- W2119673523 title "L’importance clinique des interactions médicamenteuses reliées aux isoenzymes du cytochrome P450 : de la fiction à la réalité" @default.
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