Down-Regulation of Liver Drug-Metabolizing Enzymes in a Murine Model of Chronic Renal Failure
Drug Metabolism and Disposition, ISSN: 0090-9556, Vol: 38, Issue: 3, Page: 357-360
2010
- 24Citations
- 20Captures
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Example: if you select the 1-year option for an article published in 2019 and a metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019. If you select the 3-year option for the same article published in 2019 and the metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019, 2018 and 2017.
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Metrics Details
- Citations24
- Citation Indexes24
- 24
- CrossRef21
- Captures20
- Readers20
- 20
Article Description
Drug metabolism could be altered in patients with chronic renal failure (CRF). In rats, this phenomenon is related to a decrease in liver cytochrome P450 (P450) and phase II enzymes, particularly N -acetyltransferase 2 (NAT2). This study attempted to determine the effects of CRF on liver P450 isoforms and NAT2 expressions by using a CRF mouse model. Two groups of mice were studied: CRF induced by 3/4 nephrectomy and control. Liver protein expression and mRNA levels of the major P450 isoforms involved in drug metabolism (CYP1A2, 2C29, 2D, 2E1, and 3A11) and NAT2 were measured by Western blot and real-time polymerase chain reaction (PCR), respectively. CYP3A activity was also assessed by the N -demethylation of erythromycin. Results showed a significant reduction in the protein expression of CYP1A2 (56%), 2C29 (31%), and 3A11 (37%) in CRF mice compared with control animals. Real-time PCR revealed a similar reduction in mRNA levels of CYP1A2, 2C29, and 3A11 (59, 56, and 37%, respectively), in CRF mice. There was no significant modification in protein expression and mRNA of CYP2D and 2E1. Compared with control animals, CRF mice displayed a 25% reduction in N -demethylation of erythromycin. For NAT2, protein expression decreased by 33% and mRNA levels decreased by 23%. In conclusion, this study demonstrates that protein expression of liver CYP1A2, CYP2C29, and CYP3A11 is down-regulated in CRF mice, secondary to reduced gene expression. Phase II enzymes are similarly affected by CRF. Our results will allow the use of knockout mice to determine the mechanism underlying CRF-induced down-regulation of liver drug-metabolizing enzymes.
Bibliographic Details
http://www.sciencedirect.com/science/article/pii/S0090955624022955; http://dx.doi.org/10.1124/dmd.109.029991; http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=76749140012&origin=inward; http://www.ncbi.nlm.nih.gov/pubmed/20007296; https://linkinghub.elsevier.com/retrieve/pii/S0090955624022955; https://dx.doi.org/10.1124/dmd.109.029991; https://dmd.aspetjournals.org/content/38/3/357
Elsevier BV
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