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Lipid-Lowering Therapies in Patients with Chronic Kidney Disease: A Perspective on High-Density Lipoprotein
Mohammad Abdullah Al Zubair Naim1, Keiichi Sumida1, Elani Streja2
1Division of Nephrology, Department of Medicine, University of Tennessee Health Science Center, Memphis, TN, USA.
Insights
Chronic kidney disease (CKD) impairs high-density lipoprotein cholesterol (HDL-C) function, increasing cardiovascular disease (CVD) risk. Further research into HDL-targeted therapies is crucial for managing dyslipidemia and improving outcomes in CKD patients.
Area of Science:
- Nephrology
- Cardiology
- Biochemistry
Background:
- Chronic kidney disease (CKD) is a significant risk factor for cardiovascular disease (CVD).
- Dyslipidemia in CKD patients is characterized by impaired high-density lipoprotein cholesterol (HDL-C) functionality, contributing to atherosclerosis and adverse CVD outcomes.
- Existing lipid-lowering therapies (LLTs) effective in non-CKD populations may not translate directly to CKD due to distinct lipid profiles and limited clinical trial data.
Purpose of the Study:
- To review the impact of CKD on HDL-C functionality.
- To explore the evidence for various LLTs in elevating HDL-C and improving clinical outcomes in CKD patients.
- To identify research gaps and propose future directions for HDL-targeted therapies in CKD.
Main Methods:
- Narrative review of existing literature.
- Discussion of HDL-C function in CKD.
- Exploration of evidence for different LLTs, including HDL-elevating therapies.
Main Results:
- CKD alters HDL-C's antioxidant, anti-inflammatory, and cholesterol transport capacities.
- Current guidelines recommend statins for hyperlipidemia in non-dialysis-dependent CKD, but evidence for HDL-elevating therapies is limited.
- Plausible mechanisms exist for HDL-elevation to improve outcomes, but require further investigation in CKD populations.
Conclusions:
- Further investigation into HDL-targeted therapies is recommended for CKD patients.
- Comparative effectiveness studies of HDL-elevating LLTs versus statins are needed.
- Research should clarify whether HDL-C elevation directly mediates improved clinical outcomes in CKD.
Abstract:
Chronic kidney disease (CKD) increases the risk of cardiovascular disease (CVD), with dyslipidemia being a contributing risk factor. In patients with CKD, diminished antioxidant, anti-inflammatory, and cholesterol transport capacities of high-density lipoprotein cholesterol (HDL-C) may contribute to atherosclerosis and poor CVD outcomes. Different lipid-lowering therapies (LLTs) have demonstrated efficacy in correcting dyslipidemia in patients without kidney disease, including substantial elevations in HDL-C levels with triglyceride-lowering therapies, such as fibrates and niacin, as well as novel HDL-targeted therapies, including cholesterol-ester transfer protein inhibitors. However, the effects of HDL-elevating therapies in populations without kidney disease may not readily be extrapolated to patients with CKD, given the distinct dyslipidemia patterns and the lack of high-quality clinical trials in this population. Despite plausible mechanisms of HDL-elevation to improve clinical outcomes, current clinical guidelines only recommend statin use for the treatment of hyperlipidemia in patients with non-dialysis-dependent CKD. In this narrative review, we discuss how HDL-C functionality is affected in patients with CKD and explore evidence investigating different LLTs for HDL elevation and improved clinical outcomes in this population. In patients with CKD, we recommend further investigation of HDL-targeted therapies, comparative effectiveness evaluation of HDL-elevating LLTs versus statins across various clinical endpoints, and whether HDL-C elevation mediates these outcomes.
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