1
|
Zuzda K, Grycuk W, Małyszko J, Małyszko J. Kidney and lipids: novel potential therapeutic targets for dyslipidemia in kidney disease? Expert Opin Ther Targets 2022; 26:995-1009. [PMID: 36548906 DOI: 10.1080/14728222.2022.2161887] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
INTRODUCTION Altered lipid distribution and metabolism may lead to the development and/or progression of chronic kidney disease (CKD). Dyslipidemia is a major risk factor for CKD and increases the risk of cardiovascular events and mortality. Therefore, lipid-lowering treatments may decrease cardiovascular risk and prevent death. AREAS COVERED Key players involved in regulating lipid accumulation in the kidney; contribution of lipids to CKD progression, lipotoxicity, and mitochondrial dysfunction in kidney disease; recent therapeutic approaches for dyslipidemia. EXPERT OPINION The precise mechanisms for regulating lipid metabolism, particularly in kidney disease, are poorly understood. Guidelines for lipid-lowering therapy for CKD are controversial. Several hypolipemic therapies are available, but compared to others, statin therapy is the most common. No clinical trial has evaluated the efficacy of proprotein convertase subtilisin/kexin type 9 inhibitors (PCSK9i) in preventing cardiovascular events or improving kidney function among patients with CKD or kidney transplant recipients. Attractive alternatives, such as PCSK9-small interfering RNA (siRNA) molecules or evinacumab are available. Additionally, several promising agents, such as cyclodextrins and the FXR/TGR5 dual agonist, INT-767, can improve renal lipid metabolism disorders and delay CKD progression. Drugs targeting mitochondrial dysfunction could be an option for the treatment of dyslipidemia and lipotoxicity, particularly in renal diseases.
Collapse
Affiliation(s)
- Konrad Zuzda
- Department of Nephrology, Dialysis and Internal Medicine, Medical University of Warsaw, Bialystok, Poland
| | - Wiktoria Grycuk
- Department of Nephrology, Dialysis and Internal Medicine, Medical University of Warsaw, Bialystok, Poland
| | - Jacek Małyszko
- 1st Department of Nephrology and Transplantology, Medical University of Bialystok, Bialystok, Poland
| | - Jolanta Małyszko
- Department of Nephrology, Dialysis and Internal Medicine, Medical University of Warsaw, Bialystok, Poland
| |
Collapse
|
2
|
Furuto Y, Hashimoto H, Kawamura M, Horiuchi H, Shibuya Y. Collapsing focal segmental glomerulosclerosis successfully treated with combination of steroid pulse and low-density lipoprotein apheresis: lessons for the clinical nephrologist. J Nephrol 2021; 35:1279-1282. [PMID: 34846714 DOI: 10.1007/s40620-021-01213-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2021] [Accepted: 11/14/2021] [Indexed: 11/26/2022]
Affiliation(s)
- Yoshitaka Furuto
- Department of Hypertension and Nephrology, NTT Medical Centre Tokyo, 5-9-22, Higashi-Gotanda, Shinagawa-ku, Tokyo, 141-8625, Japan.
| | - Hirotsugu Hashimoto
- Department of Diagnostic Pathology, NTT Medical Centre Tokyo, 5-9-22, Higashi-Gotanda, Shinagawa-ku, Tokyo, 141-8625, Japan
| | - Mariko Kawamura
- Department of Hypertension and Nephrology, NTT Medical Centre Tokyo, 5-9-22, Higashi-Gotanda, Shinagawa-ku, Tokyo, 141-8625, Japan
| | - Hajime Horiuchi
- Department of Diagnostic Pathology, NTT Medical Centre Tokyo, 5-9-22, Higashi-Gotanda, Shinagawa-ku, Tokyo, 141-8625, Japan
| | - Yuko Shibuya
- Department of Hypertension and Nephrology, NTT Medical Centre Tokyo, 5-9-22, Higashi-Gotanda, Shinagawa-ku, Tokyo, 141-8625, Japan
| |
Collapse
|
3
|
Effects of LDL apheresis on proteinuria in patients with diabetes mellitus, severe proteinuria, and dyslipidemia. Clin Exp Nephrol 2020; 25:1-8. [PMID: 32857255 DOI: 10.1007/s10157-020-01959-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2020] [Accepted: 08/11/2020] [Indexed: 01/14/2023]
Abstract
BACKGROUND Patients with diabetes mellitus and severe proteinuria present with poor renal prognoses, despite improvements in diabetes and kidney disease therapies. In this study, we designed a low-density lipoprotein (LDL)-cholesterol apheresis treatment for patients with diabetic nephropathy (DN)/diabetic kidney disease and severe proteinuria. This was a multicenter prospective LICENSE study to confirm the impact of LDL apheresis on proteinuria that exhibited hyporesponsiveness to treatment. In addition, we sought to determine the efficacy and safety of LDL apheresis by comparing the outcomes to those of historical controls in patients with diabetes, refractory hypercholesterolemia, and severe proteinuria. METHODS This was a prospective, multicenter study, including 40 patients with diabetes, severe proteinuria, and dyslipidemia. LDL apheresis was performed 6-12 times over a 12-week period. The primary endpoint was the proportion of patients with a decrease in proteinuria excretion of at least 30% in the 6 months after starting therapy. The secondary endpoints included serum creatinine levels and laboratory variables, which were evaluated 4, 6, 12, 18, and 24 months after therapy initiation. RESULTS LDL apheresis was performed on 40 registered patients with diabetes. The proportion of cases in which proteinuria decreased by 30% or more after 6 months of LDL apheresis was 25%, which was similar to that of historical controls. The overall survival and end-stage kidney disease-free survival rates were significantly higher in the LICENSE group compared to those in historical controls. CONCLUSION Our results suggest that LDL apheresis may be effective and safe for patients with diabetes, proteinuria, and dyslipidemia. TRIAL REGISTRATION Trial registration number: jRCTs042180076.
Collapse
|
4
|
Terada K, Mugishima K, Kawasaki S, Itagaki F, Yamada T, Sakai Y. Low-Density Lipoprotein Apheresis in Patients with Acute Kidney Injury Due to Minimal Change Disease Requiring Acute Renal Replacement Therapy. Int J Nephrol Renovasc Dis 2020; 13:157-162. [PMID: 32606890 PMCID: PMC7308121 DOI: 10.2147/ijnrd.s248610] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2020] [Accepted: 06/04/2020] [Indexed: 12/02/2022] Open
Abstract
Low-density lipoprotein apheresis (LDL-A) has been developed as a therapy for familial hypercholesterolemia, but LDL-A has also been used as a general treatment for drug-resistant nephrotic syndrome (NS) due to focal segmental glomerulosclerosis (FSGS). The patients with NS due to minimal change disease (MCD) are often difficult to control effective circulating plasma volume, causes acute kidney injury (AKI), and when diuretics are not effective and the respiratory condition of patients worsens, patients require acute renal replacement therapy (ARRT). The effectiveness of LDL-A is not only reduction of serum low-density lipoprotein but also various other benefits. LDL-A might have improved renal hemodynamics by reducing vasoconstrictive eicosanoids and contributed to the therapeutic effect of antiproteinuric drugs such as corticosteroids. We treated a 49-year-old Japanese woman and a 71-year-old Japanese man with AKI caused by NS due to MCD, who required ARRT. Although these patients received ARRT and corticosteroids, their AKI and MCD did not improve sufficiently. We initiated LDL-A treatment for these patients as an additional treatment modality, because their total serum cholesterol levels were high at the time of admission. After the additional LDL-A treatment, both patients were able to discontinue ARRT, because NS and AKI in both patients were improved sufficiently. It is possible that early additional LDL-A is effective for patients with AKI and NS due to MCD who require ARRT, and may help patients discontinue ARRT because of the effect of LDL-A such as improving hypercoagulability and renal hemodynamics and contributing to the therapeutic effect of corticosteroids.
Collapse
Affiliation(s)
- Kohsuke Terada
- Department of Nephrology, Graduate School of Medicine, Nippon Medical School, Tokyo, Japan
| | - Koji Mugishima
- Department of Nephrology, Graduate School of Medicine, Nippon Medical School, Tokyo, Japan
| | - Sayuri Kawasaki
- Department of Nephrology, Graduate School of Medicine, Nippon Medical School, Tokyo, Japan
| | - Fumiaki Itagaki
- Department of Nephrology, Graduate School of Medicine, Nippon Medical School, Tokyo, Japan
| | - Takehisa Yamada
- Department of Nephrology, Graduate School of Medicine, Nippon Medical School, Tokyo, Japan
| | - Yukinao Sakai
- Department of Nephrology, Graduate School of Medicine, Nippon Medical School, Tokyo, Japan
| |
Collapse
|
5
|
Hardersen R, Enebakk T, Christiansen D, Ludviksen JK, Mollnes TE, Lappegård KT, Hovland A. Comparison of cytokine changes in three different lipoprotein apheresis systems in an ex vivo whole blood model. J Clin Apher 2019; 35:104-116. [DOI: 10.1002/jca.21765] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2019] [Revised: 10/24/2019] [Accepted: 11/12/2019] [Indexed: 12/23/2022]
Affiliation(s)
- Randolf Hardersen
- Department of Nephrology, Division of Internal MedicineNordland Hospital Trust Bodø Norway
| | - Terje Enebakk
- Department of Nephrology, Division of Internal MedicineNordland Hospital Trust Bodø Norway
| | | | | | - Tom E. Mollnes
- Research LaboratoryNordland Hospital Trust Bodø Norway
- Institute of Clinical MedicineUniversity of Tromsø Tromsø Norway
- Centre of Molecular Inflammation ResearchNorwegian University of Science and Technology Trondheim Norway
- Department of Immunology and University of Oslo, Institute of Clinical Medicine, Faculty of MedicineOslo University Hospital Oslo Norway
| | - Knut Tore Lappegård
- Institute of Clinical MedicineUniversity of Tromsø Tromsø Norway
- Department of Cardiology, Division of Internal MedicineNordland Hospital Trust Bodø Norway
| | - Anders Hovland
- Institute of Clinical MedicineUniversity of Tromsø Tromsø Norway
- Department of Cardiology, Division of Internal MedicineNordland Hospital Trust Bodø Norway
| |
Collapse
|
6
|
Probing insulin sensitivity in diabetic kidney disease: is there a stronger role for functional imaging? Clin Sci (Lond) 2018; 132:1085-1095. [PMID: 29871909 DOI: 10.1042/cs20171490] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2018] [Revised: 04/25/2018] [Accepted: 05/09/2018] [Indexed: 11/17/2022]
Abstract
Clinical and experimental evidence support a cause-effect relationship between altered insulin signaling and development of kidney disease of metabolic and non-metabolic origin. However, the current criteria to measure and/or estimate the insulin resistance (IR) are available as research tool but are very difficult to implement in the clinical practice. Therefore, a better understanding of the key players contributing to IR may lead to the development of new non-invasive tools to assess organ-specific insulin sensitivity (IS). We will therefore first introduce the concept that IR and kidney disease may be causally linked as suggested by clinical and experimental studies. We will then, expand on the potential mechanisms leading to altered renal insulin signaling. After reviewing the limitation of currently available strategies to determine IR, this review article will focus on imaging techniques that could be utilized to determine renal IR and that could be tested to predict kidney disease development and progression.
Collapse
|
7
|
Preoperative Low-Density Lipoprotein Apheresis for Preventing Recurrence of Focal Segmental Glomerulosclerosis after Kidney Transplantation. J Transplant 2018; 2018:8926786. [PMID: 29808114 PMCID: PMC5901999 DOI: 10.1155/2018/8926786] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2017] [Revised: 02/09/2018] [Accepted: 03/01/2018] [Indexed: 12/12/2022] Open
Abstract
Background Focal segmental glomerulosclerosis (FSGS) often develops rapidly and frequently progresses to renal failure, while the recurrence rate after kidney transplantation is 20–50%. We performed low-density lipoprotein (LDL) apheresis before kidney transplantation in FSGS patients to prevent recurrence. Methods Five adult patients with chronic renal failure due to FSGS undergoing living related donor kidney transplantation were investigated retrospectively. LDL apheresis was done 1-2 times before transplantation. Postoperative renal function and recurrence of FSGS were assessed. Results The patients were two men and three women aged 24 to 41 years. The observation period ranged from 60 days to 22 months. Preoperative LDL apheresis was performed once in one patient and twice in four patients. Blood LDL cholesterol levels were normal before LDL apheresis and remained normal both after LDL apheresis and after kidney transplantation. Additional LDL apheresis was performed once in one patient with mild proteinuria after transplantation. The renal graft survived in all patients and there was no evidence of recurrent FSGS. Conclusions Although the observation period was short, FSGS did not recur in all 5 patients receiving preoperative LDL apheresis. These results suggest that LDL apheresis can be effective in preventing recurrence of FSGS after kidney transplantation.
Collapse
|
8
|
Rationale and study design of a clinical trial to assess the effects of LDL apheresis on proteinuria in diabetic patients with severe proteinuria and dyslipidemia. Clin Exp Nephrol 2017; 22:591-596. [PMID: 29080119 DOI: 10.1007/s10157-017-1488-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2017] [Accepted: 09/19/2017] [Indexed: 10/18/2022]
Abstract
BACKGROUND Diabetic nephropathy is a leading cause of end-stage kidney disease in the world. Although various types of treatment for diabetes, hypertension and dyslipidemia have improved prognosis and quality of life in patients with diabetic nephropathy, there still exist some diabetic patients with severe proteinuria showing poor prognosis. This clinical trial, LICENSE, aims to confirm the impact of LDL apheresis on proteinuria exhibiting hyporesponsiveness to treatment. METHODS This ongoing trial is a multicenter, prospective study of diabetic patients with severe proteinuria. The objective is to examine the impact of LDL apheresis on proteinuria in patients with diabetic nephropathy. The other subject is to investigate safety of LDL apheresis in these patients. RESULTS The subjects consist of diabetic patients with serum creatinine (Cr) levels below 2 mg/dL who present severe proteinuria above 3 g/g Cr or 3 g/day and LDL cholesterol above 120 mg/dL. The target number of registered patients will be 35 patients. Urinary protein excretion and renal function will be observed for 24 weeks after the treatment of LDL apheresis. CONCLUSION This study will determine the effectiveness and safety of LDL apheresis for diabetic nephropathy patients with severe proteinuria and dyslipidemia.
Collapse
|
9
|
Wahl P, Ducasa GM, Fornoni A. Systemic and renal lipids in kidney disease development and progression. Am J Physiol Renal Physiol 2016; 310:F433-45. [PMID: 26697982 PMCID: PMC4971889 DOI: 10.1152/ajprenal.00375.2015] [Citation(s) in RCA: 84] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2015] [Accepted: 12/22/2015] [Indexed: 12/14/2022] Open
Abstract
Altered lipid metabolism characterizes proteinuria and chronic kidney diseases. While it is thought that dyslipidemia is a consequence of kidney disease, a large body of clinical and experimental studies support that altered lipid metabolism may contribute to the pathogenesis and progression of kidney disease. In fact, accumulation of renal lipids has been observed in several conditions of genetic and nongenetic origins, linking local fat to the pathogenesis of kidney disease. Statins, which target cholesterol synthesis, have not been proven beneficial to slow the progression of chronic kidney disease. Therefore, other therapeutic strategies to reduce cholesterol accumulation in peripheral organs, such as the kidney, warrant further investigation. Recent advances in the understanding of the biology of high-density lipoprotein (HDL) have revealed that functional HDL, rather than total HDL per se, may protect from both cardiovascular and kidney diseases, strongly supporting a role for altered cholesterol efflux in the pathogenesis of kidney disease. Although the underlying pathophysiological mechanisms responsible for lipid-induced renal damage have yet to be uncovered, several studies suggest novel mechanisms by which cholesterol, free fatty acids, and sphingolipids may affect glomerular and tubular cell function. This review will focus on the clinical and experimental evidence supporting a causative role of lipids in the pathogenesis of proteinuria and kidney disease, with a primary focus on podocytes.
Collapse
Affiliation(s)
- Patricia Wahl
- Peggy and Harold Katz Family Drug Discovery Center and Division of Nephrology and Hypertension, University of Miami Miller School of Medicine, Miami, Florida
| | - Gloria Michelle Ducasa
- Peggy and Harold Katz Family Drug Discovery Center and Division of Nephrology and Hypertension, University of Miami Miller School of Medicine, Miami, Florida
| | - Alessia Fornoni
- Peggy and Harold Katz Family Drug Discovery Center and Division of Nephrology and Hypertension, University of Miami Miller School of Medicine, Miami, Florida
| |
Collapse
|
10
|
Abstract
Patients with familial hypercholesterolemia (FH) have early development of atherosclerosis and cardiovascular disease (CVD). Lipid level-lowering medications are not always successful in reducing increased low-density lipoprotein C (LDL-C) levels. Lipoprotein apheresis (LA) therapy has proven its clinical benefit in reducing CVD events for patients with FH with hypercholesterolemia. LA reduces LDL-C levels by more than 60% in patients with FH and reduces CVD events. LA also reduces Lp(a) levels and CVD events. LA reduces inflammatory markers and blood viscosity.
Collapse
Affiliation(s)
- Patrick M Moriarty
- Division of Clinical Pharmacology and Atherosclerosis/Lipoprotein-Apheresis Center, University of Kansas Medical Center, 3901 Rainbow Boulevard, Mail Stop 3008, Kansas City, KS 66160, USA.
| | - Linda Hemphill
- Massachusetts General Hospital, Harvard Medical School, Boston, MA 02115, USA
| |
Collapse
|
11
|
Muso E, Mune M, Hirano T, Hattori M, Kimura K, Watanabe T, Yokoyama H, Sato H, Uchida S, Wada T, Shoji T, Takemura T, Yuzawa Y, Ogahara S, Sugiyama S, Iino Y, Sakai S, Ogura Y, Yukawa S, Nishizawa Y, Yorioka N, Imai E, Matsuo S, Saito T. A Prospective Observational Survey on the Long-Term Effect of LDL Apheresis on Drug-Resistant Nephrotic Syndrome. NEPHRON EXTRA 2015; 5:58-66. [PMID: 26557843 PMCID: PMC4592509 DOI: 10.1159/000437338] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
BACKGROUND/AIMS LDL apheresis (LDL-A) is used for drug-resistant nephrotic syndrome (NS) as an alternative therapy to induce remission by improvement of hyperlipidemia. Several clinical studies have suggested the efficacy of LDL-A for refractory NS, but the level of evidence remains insufficient. A multicenter prospective study, POLARIS (Prospective Observational Survey on the Long-Term Effects of LDL Apheresis on Drug-Resistant Nephrotic Syndrome), was conducted to evaluate its clinical efficacy with high-level evidence. METHODS Patients with NS who showed resistance to primary medication for at least 4 weeks were prospectively recruited to the study and treated with LDL-A. The long-term outcome was evaluated based on the rate of remission of NS 2 years after treatment. Factors affecting the outcome were also examined. RESULTS A total of 58 refractory NS patients from 40 facilities were recruited and enrolled as subjects of the POLARIS study. Of the 44 subjects followed for 2 years, 21 (47.7%) showed remission of NS based on a urinary protein (UP) level <1.0 g/day. The UP level immediately after LDL-A and the rates of improvement of UP, serum albumin, serum creatinine, eGFR, and total and LDL cholesterol after the treatment session significantly affected the outcome. CONCLUSIONS Almost half of the cases of drug-resistant NS showed remission 2 years after LDL-A. Improvement of nephrotic parameters at termination of the LDL-A treatment was a predictor of a favorable outcome.
Collapse
Affiliation(s)
- Eri Muso
- Division of Nephrology and Dialysis, Kitano Hospital, Tazuke Kofukai Medical Institute, Tokyo, Japan
| | | | - Tsutomu Hirano
- Department of Diabetes, Metabolism and Endocrinology, Tokyo, Japan
| | - Motoshi Hattori
- Department of Pediatric Nephrology, Tokyo Women's Medical University, Tokyo, Japan
| | - Kenjiro Kimura
- Department of Nephrology and Hypertension, Internal Medicine, St. Marianna University School of Medicine, Kawasaki, Japan
| | - Tsuyoshi Watanabe
- Department of Nephrology, Hypertension, Diabetology, Endocrinology and Metabolism, Fukushima Medical University School of Medicine, Fukushima, Japan
| | - Hitoshi Yokoyama
- Division of Nephrology, Kanazawa Medical University School of Medicine, Uchinada, Japan
| | - Hiroshi Sato
- Department of Clinical Pharmacology and Therapeutics, Graduate School of Pharmaceutical Sciences, Tohoku University, Sendai, Japan
| | - Shunya Uchida
- Department of Internal Medicine, Teikyo University School of Medicine, Tokyo, Japan
| | - Takashi Wada
- Department of Laboratory Medicine, Kanazawa University Graduate School of Medical Science, Kanazawa, Japan
| | - Tetsuo Shoji
- Department of Metabolism, Endocrinology and Molecular Medicine, Osaka City University Graduate School of Medicine, Tokyo, Japan
| | - Tsukasa Takemura
- Department of Pediatrics, Kinki University School of Medicine, Osaka, Japan
| | - Yukio Yuzawa
- Department of Nephrology, Fujita Health University School of Medicine, Toyoake, Japan
| | - Satoru Ogahara
- Division of Nephrology and Rheumatology, Department of Internal Medicine, Fukuoka, Japan
| | | | - Yasuhiko Iino
- Department of Nephrology, Nippon Medical School, Tokyo, Japan
| | | | - Yousuke Ogura
- Division of Nephrology, Department of Medicine, Showa University School of Medicine, Tokyo, Japan
| | | | - Yoshiki Nishizawa
- Department of Metabolism, Endocrinology and Molecular Medicine, Osaka City University Graduate School of Medicine, Tokyo, Japan
| | | | - Enyu Imai
- Nakayamadera Imai Clinic, Takarazuka, Japan
| | - Seiichi Matsuo
- Department of Nephrology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Takao Saito
- General Medical Research Center, Faculty of Medicine, Fukuoka University, Fukuoka, Japan
| |
Collapse
|
12
|
|
13
|
Sato E, Amaha M, Nomura M, Matsumura D, Ueda Y, Nakamura T. LDL-apheresis contributes to survival extension and renal function maintenance of severe diabetic nephropathy patients: a retrospective analysis. Diabetes Res Clin Pract 2014; 106:241-6. [PMID: 25306260 DOI: 10.1016/j.diabres.2014.08.012] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/14/2014] [Revised: 07/23/2014] [Accepted: 08/23/2014] [Indexed: 12/19/2022]
Abstract
AIMS Low-density lipoprotein (LDL)-apheresis removes various molecules including LDL/oxidized LDL and inflammatory cytokines and recovers clinical laboratory parameters. It is not yet known whether these advantages of LDL-apheresis improve the prognosis of patients with diabetic nephropathy accompanied by nephrotic syndrome. METHODS In this study, three groups of patients were retrospectively surveyed in a single center, and followed for approximately 3 years: an LDL-apheresis cohort (LDL-a; N = 20); a control cohort meeting the selection criterion of severe proteinuria ≥ 3g/24h (control-All; N = 55); and a subgroup of control-All with more severe proteinuria ≥ 5 g/24h (control-mSP; N = 10), and evaluated the outcomes as survival and renal dysfunction and death/renal dysfunction free rate. RESULTS Death/renal dysfunction free rate was significantly higher in LDL-a than control-All (χ(2) = 4.50; P = 0.03) and control-mSP (χ(2) = 27.68; P < 0.001). CONCLUSION These results suggest the possibilities which LDL-apheresis is considered to contribute to survival extension and renal function maintenance of severe diabetic nephropathy patients.
Collapse
Affiliation(s)
- Eiichi Sato
- Shin-Matsudo Central General Hospital, Japan; Department of Pathology, Dokkyo Medical University, Koshigaya Hospital, Japan.
| | | | | | | | - Yoshihiko Ueda
- Department of Pathology, Dokkyo Medical University, Koshigaya Hospital, Japan
| | | |
Collapse
|
14
|
Chen G, Zhang L, Jin X, Zhou Y, Niu J, Chen J, Gu Y. Effects of angiogenic factors, antagonists, and podocyte injury on development of proteinuria in preeclampsia. Reprod Sci 2012; 20:579-88. [PMID: 22991381 DOI: 10.1177/1933719112459227] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Proteinuria is universal to all patients with preeclampsia. We examined the urinary podocytes in women with preeclampsia (n = 14), gestational hypertension (n = 14), and normal pregnancy. Maternal serum and urinary concentrations of vascular endothelial growth factor (VEGF), placental growth factor (PlGF), and the antiangiogenic factor soluble fms-like tyrosine kinase 1 (sFlt-1) were detected. These concentrations were used to evaluate the urinary excretion of podocytes and the alteration of angiogenic factors and to assess their relationships to proteinuria in preeclampsia. Our studies suggest that the urinary podocyte number and angiogenic factors are correlated with random urine albumin/creatinine ratio and blood pressure. Receiver-operating characteristic (ROC) curves of serum and urinary PlGF and the PlGF/sFlt-1 ratio as well as the presence of podocyturia confirmed their usefulness in distinguishing preeclamptic and normotensive pregnant women. In addition, combinations of serum or urinary PlGF or podocyturia tests in parallel or in series provided the best clue for identifying patients with preeclampsia. We considered that the dysregulation of angiogenic factors and its subsequent podocyte injury may contribute to the mechanism of proteinuria development in preeclampsia.
Collapse
Affiliation(s)
- Guixiang Chen
- Division of Nephrology, The Fifth People's Hospital of Shanghai, Fudan University, Shanghai, China
| | | | | | | | | | | | | |
Collapse
|
15
|
Rosca MG, Vazquez EJ, Chen Q, Kerner J, Kern TS, Hoppel CL. Oxidation of fatty acids is the source of increased mitochondrial reactive oxygen species production in kidney cortical tubules in early diabetes. Diabetes 2012; 61:2074-83. [PMID: 22586586 PMCID: PMC3402323 DOI: 10.2337/db11-1437] [Citation(s) in RCA: 139] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Mitochondrial reactive oxygen species (ROS) cause kidney damage in diabetes. We investigated the source and site of ROS production by kidney cortical tubule mitochondria in streptozotocin-induced type 1 diabetes in rats. In diabetic mitochondria, the increased amounts and activities of selective fatty acid oxidation enzymes is associated with increased oxidative phosphorylation and net ROS production with fatty acid substrates (by 40% and 30%, respectively), whereas pyruvate oxidation is decreased and pyruvate-supported ROS production is unchanged. Oxidation of substrates that donate electrons at specific sites in the electron transport chain (ETC) is unchanged. The increased maximal production of ROS with fatty acid oxidation is not affected by limiting the electron flow from complex I into complex III. The maximal capacity of the ubiquinol oxidation site in complex III in generating ROS does not differ between the control and diabetic mitochondria. In conclusion, the mitochondrial ETC is neither the target nor the site of ROS production in kidney tubule mitochondria in short-term diabetes. Mitochondrial fatty acid oxidation is the source of the increased net ROS production, and the site of electron leakage is located proximal to coenzyme Q at the electron transfer flavoprotein that shuttles electrons from acyl-CoA dehydrogenases to coenzyme Q.
Collapse
Affiliation(s)
- Mariana G Rosca
- Center of Mitochondrial Diseases, Case Western Reserve University, Cleveland, Ohio, USA.
| | | | | | | | | | | |
Collapse
|
16
|
Shoji T, Abe T, Matsuo H, Egusa G, Yamasaki Y, Kashihara N, Shirai K, Kashiwagi A. Chronic kidney disease, dyslipidemia, and atherosclerosis. J Atheroscler Thromb 2011; 19:299-315. [PMID: 22166970 DOI: 10.5551/jat.10454] [Citation(s) in RCA: 60] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Patients with chronic kidney disease (CKD) are at an increased risk not only for end-stage kidney disease (ESKD) but also for cardiovascular disease (CVD). In this review article, we summarize the current evidence of CKD as a high-risk condition for CVD based on reports from Japan and other countries to draw attention to the close clinical association between CKD and CVD. Several epidemiologic studies have shown that the presence of CKD and reduced renal function are independent predictors of CVD also in Japan. According to a post-hoc analysis of CASE-J, the power of CKD as a predictor of CVD is as strong as diabetes mellitus and a previous history of ischemic heart disease. CKD worsens classical risk factors including hypertension and dyslipidemia, and dyslipidemia is associated with increased thickness and stiffness of large arteries independent of major confounders. A post-hoc analysis of MEGA indicates that lipid-lowering therapy with statins reduces the risk of CVD, and that it appears to be more efficacious in patients with than without CKD. These reports from Japan and other countries suggest that CKD should be regarded as a high-risk condition comparable to diabetes mellitus, and that strict control of dyslipidemia would be beneficial in preventing CVD, at least early stages of CKD.
Collapse
Affiliation(s)
- Tetsuo Shoji
- Department of Geriatrics and Vascular Medicine, Osaka City University Graduate School of Medicine, 1-4-3 Asahi-machi, Osaka, Japan.
| | | | | | | | | | | | | | | | | |
Collapse
|
17
|
Allian-Sauer MU, Falko JM. Role of apheresis in the management of familial hypercholesterolemia and elevated Lp(a) levels. ACTA ACUST UNITED AC 2011. [DOI: 10.2217/clp.11.43] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
|
18
|
Lipid and low-density-lipoprotein apheresis. Effects on plasma inflammatory profile and on cytokine pattern in patients with severe dyslipidemia. Cytokine 2011; 56:842-9. [PMID: 21920771 DOI: 10.1016/j.cyto.2011.08.027] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2011] [Revised: 08/09/2011] [Accepted: 08/13/2011] [Indexed: 11/23/2022]
Abstract
Available evidence on the effects of therapeutic plasmapheresis (TP) techniques and in particular lipid- and LDL-apheresis (LDL-a) on plasmatic inflammatory mediators including cytokines were reviewed. Studies on this issue are not numerous. However, the review of existing evidence clearly suggests an active role of apheresis on the profile of inflammatory molecules and on cytokine pattern in plasma. These non-lipid-lowering effects can be defined to some extent pleiotropic or pleiotropic-equivalent. Although further studies are desirable, the data reported in this review confirm that lipid- and LDL-a not only show acute lipid-lowering and cholesterol-lowering effects, but also efficacy in reducing several proinflammatory peptides, including cytokines. This effect was not related apparently to lipids and lipoproteins reduction. Thus, TP (lipid- and LDL-a), commonly utilized in the treatment of severe genetically determined lipid disorders, unresponsive to hypolipidemic drugs, offers new possibilities of interpretation of its role in the mechanisms leading to the blockade of atherosclerotic lesion development and progression. The ability of TP on short-term to induce such a profound change in the plasmatic metabolic and inflammatory profiles must be kept in mind in the treatment of acute coronary syndromes, before and after interventions of coronary revascularization, and in the acute phase of cerebrovascular ischemia, at least in patients with severe dyslipidemia. Further studies are needed, in particular aimed at assessing if circulating cytokines may be downregulated by TP not only by direct removal, but through indirect effects on both gene translation and transcription perhaps via the cytokine receptor function.
Collapse
|
19
|
Diez-Sampedro A, Lenz O, Fornoni A. Podocytopathy in diabetes: a metabolic and endocrine disorder. Am J Kidney Dis 2011; 58:637-46. [PMID: 21719174 DOI: 10.1053/j.ajkd.2011.03.035] [Citation(s) in RCA: 68] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2010] [Accepted: 03/04/2011] [Indexed: 12/17/2022]
Abstract
Diabetic nephropathy (DN) represents a major public health cost. Tight glycemic and blood pressure control can dramatically slow, but not stop, the progression of the disease, and a large number of patients progress toward end-stage renal disease despite currently available interventions. An early and key event in the development of DN is loss of podocyte function (or glomerular visceral epithelial cells) from the kidney glomerulus, where they contribute to the integrity of the glomerular filtration barrier. Recent evidence suggests that podocytes can be the direct target of circulating hormones, lipids, and adipokines that are affected in diabetes. We review the clinical and experimental evidence implicating novel endocrine and metabolic pathways in the pathogenesis of podocyte dysfunction and the development of DN.
Collapse
Affiliation(s)
- Ana Diez-Sampedro
- Department of Physiology and Biophysics, University of Miami Miller School of Medicine, FL, USA
| | | | | |
Collapse
|
20
|
Moriarty PM. Association of ApoE and HDL-C with cardiovascular and cerebrovascular disease: potential benefits of LDL-apheresis therapy. ACTA ACUST UNITED AC 2009. [DOI: 10.2217/clp.09.21] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
21
|
Oto J, Suga K, Matsuura S, Kondo S, Ohnishi Y, Inui D, Imanaka H, Kagami S, Nishimura M. Low-density lipoprotein apheresis in a pediatric patient with refractory nephrotic syndrome due to focal segmental glomerulosclerosis. J Anesth 2009; 23:284-7. [DOI: 10.1007/s00540-008-0726-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2008] [Accepted: 11/22/2008] [Indexed: 11/24/2022]
|
22
|
Statin treatment reduces glomerular inflammation and podocyte damage in rat deoxycorticosterone-acetate-salt hypertension. J Hypertens 2009; 27:376-85. [DOI: 10.1097/hjh.0b013e32831997d6] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
23
|
Miyazono M, Tomiyoshi Y, Kishi T, Ikeda Y, Sakemi T, Sanai T, Node K. A Case Report of Nephrotic Syndrome Due to Collapsing Focal Segmental Glomerulosclerosis Treated With Low-density Lipoprotein Apheresis. Ther Apher Dial 2008; 12:333-6. [DOI: 10.1111/j.1744-9987.2008.00596.x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
24
|
Applications of LDL-apheresis in nephrology. Clin Exp Nephrol 2008; 12:9-15. [PMID: 18175056 DOI: 10.1007/s10157-007-0003-8] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2007] [Accepted: 08/24/2007] [Indexed: 12/31/2022]
Abstract
LDL-apheresis (LA) was originally used for familial hyperlipidemia, and then in Japan extended to use for the treatment of patients with peripheral arterial disease (PAD) and nephrotic syndrome due to steroid-resistant focal glomerular sclerosis (FGS). The reason why this treatment is applicable for these disorders is due to the fact that LA exerts its favorable effects beyond the lipid-lowering effect. The main underlying mechanisms, for example, in the case of LA application in patients with PAD are: (1) improvement of hemorheology, (2) improvement of endothelial dysfunction, (3) elevations of serum levels of NO and bradykinin, (4) increase in serum levels of vascular endothelial growth factor, and (5) reduction of adhesion molecules on monocytes. Furthermore, we have reported that LA could have anti-inflammatory effects because LA reduces serum levels of P-selectin, which is known to play an important role in the development of atherosclerosis as well as a reduction of serum C-reactive protein levels as standard biomarker of atherosclerosis. Massive proteinuria is also an important challenge in nephrology. The possible mechanisms besides removal of toxic lipids are the reduction of the vasoconstrictive prostanoid and thromboxane A2 (TXA2) and an improvement in macrophage function evidenced by a significant amelioration of interleukin-8 production by lipopolysaccharide-stimulated peripheral blood mononuclear cells. It is intriguing to note that in terms of pharmacodynamics, LA improves steroid and cyclosporine uptake into lymphocytes. Although there are no randomized controlled trials, it is clear that LA has various effects beyond lowering lipids. Making the device more concise and changing it into a whole blood adsorption type, we need to collect more clinical cases and to study the underlying mechanisms further.
Collapse
|
25
|
Onofrillo D, Accorsi P. What’s going on in LDL apheresis. Transfus Apher Sci 2007; 37:213-21. [DOI: 10.1016/j.transci.2007.08.009] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2007] [Accepted: 08/29/2007] [Indexed: 01/02/2023]
|
26
|
Jiang T, Wang XX, Scherzer P, Wilson P, Tallman J, Takahashi H, Li J, Iwahashi M, Sutherland E, Arend L, Levi M. Farnesoid X receptor modulates renal lipid metabolism, fibrosis, and diabetic nephropathy. Diabetes 2007; 56:2485-93. [PMID: 17660268 DOI: 10.2337/db06-1642] [Citation(s) in RCA: 162] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
OBJECTIVE Recent studies indicate an important role for nuclear receptors in regulating lipid and carbohydrate metabolism, fibrosis, and inflammation. Farnesoid X receptor (FXR) is a member of the nuclear hormone receptor superfamily. FXR is highly expressed in the liver, intestine, adrenal gland, and kidney. The primary bile acids are the highest affinity endogenous ligands for FXR. The effects of FXR agonists in diabetic kidney disease, the main cause of end-stage renal disease, however, have not been determined. RESEARCH DESIGN AND METHODS To identify the effect of FXR activation in modulation of diabetic nephropathy, we treated 1) C57BL/6J mice on low-fat diet or high-fat diet with FXR agonists (GW4064 or cholic acid) for 1 week; 2) C57BLKS/J-db/db mice and their lean mates with GW4064 for 1 week; and 3) C57BL/6J-db/db mice and their lean mates with cholic acid for 12 weeks. RESULTS We found that FXR agonists modulate renal sterol regulatory element-binding protein-1 (SREBP-1) expression and lipid metabolism and renal expression of profibrotic growth factors, proinflammatory cytokines, and oxidative stress enzymes and decrease glomerulosclerosis, tubulointerstitial fibrosis, and proteinuria. In renal mesangial cells, overexpression of FXR or treatment with GW4064 also inhibited SREBP-1c and other lipogenic genes, transforming growth factor-beta, and interleukin-6, suggesting a direct role of FXR in modulating renal lipid metabolism and modulation of fibrosis and inflammation. CONCLUSIONS These results therefore indicate a new and important role for FXR in the kidney and provide new therapeutic avenues for the treatment of diabetic nephropathy.
Collapse
Affiliation(s)
- Tao Jiang
- Department of Medicine, Division of Renal Diseases and Hypertension, University of Colorado Health Sciences Center, 4200 East 9th Ave., Denver, CO 80262, USA
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
27
|
Kawasaki Y, Suzuki S, Matsumoto A, Takano K, Suyama K, Hashimoto K, Suzuki J, Suzuki H, Hosoya M. Long-term efficacy of low-density lipoprotein apheresis for focal and segmental glomerulosclerosis. Pediatr Nephrol 2007; 22:889-92. [PMID: 17277952 DOI: 10.1007/s00467-006-0426-6] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/22/2006] [Revised: 12/21/2006] [Accepted: 12/22/2006] [Indexed: 10/23/2022]
Abstract
Recently, there have been reports on the efficacy of low-density lipoprotein (LDL) apheresis (LDL-A) for focal and segmental glomerulosclerosis (FSGS) in pediatric patients. However, there have been few reports on the long-term efficacy of LDL-A for FSGS in such patients. We report here a case of long-term efficacy of LDL-A for FSGS. The patient was a 13-year-old boy with FSGS who presented with steroid-resistant and cyclosporine-resistant nephrotic syndrome and hyperlipidemia. LDL-A was performed 24 times on one year. Following LDL-A, serum concentrations of LDL, very low-density lipoprotein (VLDL), apoprotein B, and vascular endothelial growth factor significantly decreased, and urinary excretion of protein also decreased. In addition, 3 years after LDL-A, the pathology findings on a second renal biopsy had improved. The patient has been in remission from FSGS for 12 years since LDL-A. These findings suggest that LDL-A may be useful in maintaining long-term remission from pediatric FSGS.
Collapse
Affiliation(s)
- Yukihiko Kawasaki
- Department of Pediatrics, Fukushima Medical University School of Medicine, 1 Hikariga-oka, Fukushima City, Fukushima 960-1295, Japan.
| | | | | | | | | | | | | | | | | |
Collapse
|
28
|
Abstract
Although several factors may mediate the development and progression of diabetic nephropathy, hyperlipidemia is now considered an independent and major determinant of progression of renal disease in diabetes. The following discussion focuses on the experimental evidence that incriminates hyperlipidemia as a pathogenic factor for diabetic nephropathy and the potential mechanisms that may mediate renal injury from hyperlipidemia, as well as the clinical studies involving therapeutic interventions for hyperlipidemia and their impact on progression of diabetic renal disease.
Collapse
|
29
|
Proctor G, Jiang T, Iwahashi M, Wang Z, Li J, Levi M. Regulation of renal fatty acid and cholesterol metabolism, inflammation, and fibrosis in Akita and OVE26 mice with type 1 diabetes. Diabetes 2006; 55:2502-9. [PMID: 16936198 DOI: 10.2337/db05-0603] [Citation(s) in RCA: 223] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
In Akita and OVE26 mice, two genetic models of type 1 diabetes, diabetic nephropathy is characterized by mesangial expansion and loss of podocytes, resulting in glomerulosclerosis and proteinuria, and is associated with increased expression of profibrotic growth factors, proinflammatory cytokines, and increased oxidative stress. We have also found significant increases in renal triglyceride and cholesterol content. The increase in renal triglyceride content is associated with 1) increased expression of sterol regulatory element-binding protein (SREBP)-1c and carbohydrate response element-binding protein (ChREBP), which collectively results in increased fatty acid synthesis, 2) decreased expression of peroxisome proliferator-activated receptor (PPAR)-alpha and -delta, which results in decreased fatty acid oxidation, and 3) decreased expression of farnesoid X receptor (FXR) and small heterodimer partner (SHP). The increase in cholesterol content is associated with 1) increased expression of SREBP-2 and 3-hydroxy-3-methylglutaryl (HMG)-CoA reductase, which results in increased cholesterol synthesis, and 2) decreased expression of liver X receptor (LXR)-alpha, LXR-beta, and ATP-binding cassette transporter-1, which results in decreased cholesterol efflux. Our results indicate that in type 1 diabetes, there is altered renal lipid metabolism favoring net accumulation of triglycerides and cholesterol, which are driven by increases in SREBP-1, ChREBP, and SREBP-2 and decreases in FXR, LXR-alpha, and LXR-beta, which may also play a role in the increased expression of profibrotic growth hormones, proinflammatory cytokines, and oxidative stress.
Collapse
Affiliation(s)
- Gregory Proctor
- Department of Medicine, Division of Renal Diseases and Hypertension, University of Colorado Health Sciences Center, Denver, CO 80262, USA
| | | | | | | | | | | |
Collapse
|
30
|
Abstract
Low-density lipoprotein (LDL)-apheresis is an effective means for acutely lowering plasma cholesterol (LDL reduction > 60%) and reducing cardiovascular events in patients with uncontrolled hypercholesterolemia who are genetically predisposed or resistant to standard therapy. Despite its known benefit, apheresis is performed in only a minority of qualified patients. In addition to reducing plasma cholesterol, apheresis can alter other markers of vascular disease (inflammation, rheology, thrombosis, and fibrinolysis). The acute and chronic changes to the vascular system may warrant LDL-apheresis use in other diseases.
Collapse
Affiliation(s)
- Patrick M Moriarty
- Department of Medicine, University of Kansas Medical Center, 3901 Rainbow Boulevard, Kansas City, KS 66160, USA.
| |
Collapse
|
31
|
Moriarty PM. LDL-apheresis therapy: current therapeutic practice and potential future use. ACTA ACUST UNITED AC 2006. [DOI: 10.2217/17460875.1.3.299] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|