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Published on: June 16, 2014
Metabolic Enzyme System and Transport Pathways in Chronic Kidney Diseases
Bin Liu1, Fangmei Luo2, Xiuju Luo3
1Department of Pharmacy, Xiangya Hospital, Central South University, Changsha, China.
Background:
Chronic Kidney Disease (CKD), a global public health problem, affects numerous people worldwide, and the prevalence is rising. Results from animal experiments and clinical investigations have demonstrated that drug metabolic enzymes and transporters-mediated non-renal clearance are dramatically impaired in CKD, co-respondent with alterations in the elimination of metabolized drugs. Accumulated uremic toxins may downregulate or directly inhibit the activity and/or the expression of drug metabolic enzymes and transporters, which may result in unintended alterations of drug exposure and response in cases when drugs dose are not adjusted for the renal dysfunction.
Method:
The aim of this review is to highlight the impact of CKD on non-renal drug clearance involving metabolism enzyme system and transport pathways, and to provide insight into the impact of non-renal drug clearance on drug metabolism and distribution in CKD patients.
Results:
Metabolic enzyme system and transport pathways are dysregulated in both rats and humans with renal failure.
Conclusion:
The alterations of drug metabolic enzymes and transporters in the kidney, liver, and intestine play an important role in their pharmacokinetic changes, and thus, the metabolism and transportation of many medications used to treat CKD patients may be affected.
Insights
Chronic Kidney Disease impairs drug clearance via non-renal pathways, affecting drug metabolism and distribution. Uremic toxins alter drug-metabolizing enzymes and transporters, necessitating dose adjustments for CKD patients.
Area of Science:
- Pharmacology
- Nephrology
- Drug Metabolism
Background:
- Chronic Kidney Disease (CKD) is a growing global health concern.
- CKD significantly impairs non-renal drug clearance mechanisms, including metabolic enzymes and transporters.
- Accumulated uremic toxins in CKD can alter the expression and activity of these drug-metabolizing systems.
Purpose of the Study:
- To review the impact of CKD on non-renal drug clearance.
- To examine the role of metabolic enzymes and transport pathways in drug disposition during CKD.
- To provide insights into drug metabolism and distribution alterations in CKD patients.
Main Methods:
- Literature review focusing on animal experiments and clinical investigations.
- Analysis of studies investigating drug metabolic enzymes and transporters in CKD.
- Synthesis of data on non-renal drug clearance in renal failure.
Main Results:
- Non-renal drug clearance is significantly affected in CKD.
- Metabolic enzyme systems and transport pathways are dysregulated in both animal models and human patients with renal failure.
- Uremic toxins contribute to the downregulation or inhibition of drug-metabolizing enzymes and transporters.
Conclusions:
- Alterations in drug metabolic enzymes and transporters in the kidney, liver, and intestine are crucial to pharmacokinetic changes in CKD.
- The metabolism and transportation of medications used in CKD patients are likely impacted by these alterations.
- Understanding these changes is vital for appropriate drug dosing and therapeutic outcomes in CKD management.
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