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Cheng Y, Liu Y, Lin L, Li D, Peng L, Zheng K, Tao J, Li M. The effects of Tripterygium wilfordii Hook F on renal outcomes in type 2 diabetic kidney disease patients with severe proteinuria: a single-center cohort study. Ren Fail 2024; 46:2295425. [PMID: 38178377 PMCID: PMC10773657 DOI: 10.1080/0886022x.2023.2295425] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Accepted: 12/11/2023] [Indexed: 01/06/2024] Open
Abstract
AIM Tripterygium wilfordii Hook F (TwHF) has been shown to substantially reduce proteinuria in patients with diabetic kidney disease (DKD); however, the effect of TwHF on renal outcomes in DKD remains unknown. Accordingly, we aimed to establish the effects of TwHF on renal outcomes in patients with DKD. METHODS Overall, 124 patients with DKD, induced by type 2 diabetes mellitus, with 24-h proteinuria > 2 g, and an estimated glomerular filtration rate > 30 mL/min/1.73 m2 were retrospectively investigated. The renal outcomes were defined as doubling serum creatinine levels or end-stage kidney disease. Kaplan-Meier curves and Cox regression analyses were performed to analyze prognostic factors for renal outcomes. RESULTS By the end of the follow-up, renal outcomes were observed in 23 and 11 patients in the non-TwHF and TwHF groups, respectively (p = 0.006). TwHF significantly reduced the risk of renal outcomes (adjusted hazard ratio [HR] 0.271, 95% confidence interval [CI] 0.111-0.660, p = 0.004) in patients with chronic kidney disease (CKD) G3 (adjusted HR 0.274, 95%CI 0.081-0.932, p = 0.039). Based on the Kaplan-Meier analysis, 1- and 3-year proportions of patients without renal outcomes were significantly lower in the non-TwHF group than those in the TwHF group (92.8% vs. 95.5% and 47.2% vs. 76.8%, respectively; p = 0.0018). CONCLUSION In DKD patients with severe proteinuria, TwHF could prevent DKD progression, especially in patients with CKD G3. A randomized clinical trial is needed to elucidate the benefits of TwHF on renal outcomes in patients with DKD.
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Affiliation(s)
- Yaqi Cheng
- Department of Nephrology, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China
| | - Yuhao Liu
- Department of Nephrology, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China
| | - Liling Lin
- Department of Laboratory, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China
| | - Danni Li
- Department of Emergency, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Liying Peng
- Department of Nephrology, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China
| | - Ke Zheng
- Department of Nephrology, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China
| | - Jianling Tao
- Department of Nephrology, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China
- Division of Nephrology, Department of Medicine, Stanford University School of Medicine, Stanford, CA, USA
| | - Mingxi Li
- Department of Nephrology, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China
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Hari P, Khandelwal P, Boyer O, Bhimma R, Cano F, Christian M, Duzova A, Iijima K, Kang HG, Qian S, Safouh H, Samuels S, Smoyer WE, Vivarelli M, Bagga A, Schaefer F. IPNA consensus definitions for clinical trial outcomes in steroid-resistant nephrotic syndrome. Pediatr Nephrol 2024:10.1007/s00467-024-06543-x. [PMID: 39384644 DOI: 10.1007/s00467-024-06543-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/25/2024] [Revised: 09/12/2024] [Accepted: 09/14/2024] [Indexed: 10/11/2024]
Abstract
Assessment of the true impact of therapeutic interventions is a challenge in the absence of universal, standardized definitions for clinical trial endpoints in children with kidney diseases. Steroid-resistant nephrotic syndrome (SRNS) is a difficult kidney disease to treat, with unremitting disease progressing to kidney failure. Currently, available therapies result in suboptimal cure rates. Clinical trials with innovative, targeted treatments will likely be conducted for this disease in the foreseeable future. An international consortium of the IPNA Best Practices and Standards Committee and the Pediatric Nephrology Expert Group of the conect4children (c4c) network developed through consensus, standardized, internationally acceptable definitions for trial outcomes for SRNS. The endpoint definitions were formulated for use with urine protein to creatinine ratios and estimated glomerular filtration rates. Definitions of complete remission, partial remission, non-remission of disease, reduction in proteinuria, kidney disease progression, kidney failure, and composite kidney outcome were refined using an iterative process until a consensus was achieved.
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Affiliation(s)
- Pankaj Hari
- Division of Pediatric Nephrology, Department of Pediatrics, All India Institute of Medical Sciences, New Delhi, India.
| | - Priyanka Khandelwal
- Division of Pediatric Nephrology, Department of Pediatrics, All India Institute of Medical Sciences, New Delhi, India
| | - Olivia Boyer
- Centre de Référence MARHEA, Institut Imagine, Néphrologie Pédiatrique, Université Paris Cité, Hôpital Necker - Enfants Malades, Paris, France
| | - Rajendra Bhimma
- Department of Paediatrics and Child Health, University of KwaZulu-Natal, Durban, South Africa
| | - Francesco Cano
- Department of Nephrology, Luis Calvo Mackenna Children's Hospital, University of Chile, Santiago, Chile
| | - Martin Christian
- Nottingham Children's Hospital, Nottingham University Hospitals, Nottingham, UK
| | - Ali Duzova
- Division of Pediatric Nephrology, Department of Pediatrics, Faculty of Medicine, Hacettepe University, Ankara, Turkey
| | - Kazumoto Iijima
- Department of Pediatrics, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Hee Gyung Kang
- Division of Pediatric Nephrology, Department of Pediatrics, Seoul National University Children's Hospital & Seoul National University College of Medicine, Seoul, Korea
| | - Shen Qian
- Clinical Research Institute, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Hesham Safouh
- Pediatric Nephrology Unit, Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Susan Samuels
- Department of Pediatrics, Section of Pediatric Nephrology, Alberta Children's Hospital, University of Calgary, Calgary, Canada
| | - William E Smoyer
- The Research Institute at Nationwide Children's Hospital, The Ohio State University, Columbus, OH, USA
| | - Marina Vivarelli
- Laboratory of Nephrology and Clinical Trial Center, Bambino Gesù Children's Hospital IRCCS, Rome, Italy
| | - Arvind Bagga
- Division of Pediatric Nephrology, Department of Pediatrics, All India Institute of Medical Sciences, New Delhi, India
| | - Franz Schaefer
- Center for Pediatrics and Adolescent Medicine, University Hospital Heidelberg, Heidelberg, Germany
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Ruiz-Urbaez R, Villagómez-Estrada MV, Reyes-Silva C, Quishpe-López D, Males-Maldonado D, Salazar-Vega J, Gea-Izquierdo E. Diabetic Nephropathy, Retinopathy, and Functional Hypogonadism in a Patient with MODY10: A Case Report. MEDICINA (KAUNAS, LITHUANIA) 2024; 60:830. [PMID: 38793013 PMCID: PMC11123248 DOI: 10.3390/medicina60050830] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2024] [Revised: 04/09/2024] [Accepted: 04/20/2024] [Indexed: 05/26/2024]
Abstract
(1) Background and objectives: Maturity-onset diabetes of the young (MODY) is a group of diabetes caused by gene defects related to insulin secretion. MODY1, MODY2, and MODY3 are the most common and account for approximately 80% of all cases. Other types are relatively rare. This study describes the clinical, analytical, and genetic characteristics of a patient with MODY10, and diabetic nephropathy, retinopathy, and functional hypogonadism diagnosis. (2) Materials and methods: A clinical case was analyzed and whole exome generation sequencing (WES) was used to detect mutations related to a monogenic variant. (3) Results: A seventeen-year-old male patient, who was diagnosed with apparent type 1 diabetes at the age of eight was started with insulin therapy. He came to the emergency room with glycemic decompensation, facial, and lower limb edema. During his evaluation, he had near-nephrotic range proteinuria of 2902 mg/24 h, a kidney ultrasound showing mild pyelocalyceal dilation, proliferative diabetic retinopathy, and was also diagnosed with functional hypogonadotropic hypogonadism. These comorbidities improved with adequate glycemic control. WES showed missense variant c.94G>A (p.Gly32Ser) in the INS gene, according to Clinvar corresponding to MODY10. It was a "de novo" variant not reported in his parents. (4) Conclusions: Monogenic diabetes (MD) is rare and MODY10 is among the less frequent types. MODY should be suspected in patients with type 1 phenotype with negative autoimmunity even in the absence of a family history of diabetes. To the best of our knowledge, we present here the first patient with these phenotypic traits of MODY10 reported in Latin America.
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Affiliation(s)
- Rossana Ruiz-Urbaez
- Unit of Endocrinology and Diabetes, Eugenio Espejo Hospital, Quito 170403, Ecuador
| | | | | | | | | | - Jorge Salazar-Vega
- Unit of Endocrinology and Diabetes, Eugenio Espejo Hospital, Quito 170403, Ecuador
- Faculty of Medicine, Pontifical Catholic University of Ecuador, Quito 170143, Ecuador
| | - Enrique Gea-Izquierdo
- Faculty of Medicine, Pontifical Catholic University of Ecuador, Quito 170143, Ecuador
- Department of Medical Specialties and Public Health, Rey Juan Carlos University, 28922 Madrid, Spain
- María Zambrano Program-European Union, Rey Juan Carlos University, 28922 Madrid, Spain
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4
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Machado-Duque ME, Gaviria-Mendoza A, Valladales-Restrepo LF, Franco JS, de Rosario Forero M, Vizcaya D, Machado-Alba JE. Treatment patterns of antidiabetic and kidney protective therapies among patients with type 2 diabetes mellitus and chronic kidney disease in Colombia. The KDICO descriptive study. Diabetol Metab Syndr 2023; 15:150. [PMID: 37403118 DOI: 10.1186/s13098-023-01126-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Accepted: 06/26/2023] [Indexed: 07/06/2023] Open
Abstract
BACKGROUND Type 2 diabetes mellitus is one of the most common causes of chronic kidney disease (CKD) worldwide and prevalence of 1.75 per 100 inhabitants in Colombia. The aim of this study was to describe the treatment patterns of a group of patients with type 2 diabetes mellitus and CKD in an outpatient setting from Colombia. METHODS A cross-sectional study in adult patients with type 2 diabetes mellitus and CKD identified in the Audifarma S.A. administrative healthcare database between April 2019 and March 2020 was performed. Sociodemographic, clinical and pharmacological variables were considered and analyzed. RESULTS A total of 14,722 patients with type 2 diabetes mellitus and CKD were identified, predominantly male (51%), with a mean age of 74.7 years. The most common treatment patterns of type 2 diabetes mellitus included the use of metformin monotherapy (20.5%), followed by the combination of metformin + dipeptidyl peptidase-4 inhibitor (13.4%). Regarding the use of drugs with nephroprotective properties, the most prescribed treatments were angiotensin receptor blockers (67.2%), angiotensin converting enzyme inhibitors (15.8%), sodium glucose cotransporter 2 inhibitors (SGLT2i) (17.0%) and glucagon-like peptide-1 analogs (GLP1a) (5.2%). CONCLUSION In Colombia, the majority of patients with type 2 diabetes mellitus and CKD identified in this study were treated with antidiabetic and protective medications to ensure adequate metabolic, cardiovascular, and renal control. The management of type 2 diabetes mellitus and CKD may be improved if the beneficial properties of new groups of antidiabetics (SGLT2i, GLP1a), as well as novel mineralocorticoid receptor antagonists, are considered.
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Affiliation(s)
- Manuel E Machado-Duque
- Grupo de Investigación en Farmacoepidemiología y Farmacovigilancia, Universidad Tecnológica de Pereira-Audifarma S.A, Pereira, Risaralda, 660003, Colombia
- Grupo de Investigación Biomedicina, Facultad de Medicina, Fundación Universitaria Autónoma de las Américas, Pereira, Colombia
| | - Andres Gaviria-Mendoza
- Grupo de Investigación en Farmacoepidemiología y Farmacovigilancia, Universidad Tecnológica de Pereira-Audifarma S.A, Pereira, Risaralda, 660003, Colombia
- Grupo de Investigación Biomedicina, Facultad de Medicina, Fundación Universitaria Autónoma de las Américas, Pereira, Colombia
| | - Luis F Valladales-Restrepo
- Grupo de Investigación en Farmacoepidemiología y Farmacovigilancia, Universidad Tecnológica de Pereira-Audifarma S.A, Pereira, Risaralda, 660003, Colombia
- Grupo de Investigación Biomedicina, Facultad de Medicina, Fundación Universitaria Autónoma de las Américas, Pereira, Colombia
| | | | | | - David Vizcaya
- Bayer AG, Pereira, Colombia
- Bayer AG, Barcelona, Spain
| | - Jorge E Machado-Alba
- Grupo de Investigación en Farmacoepidemiología y Farmacovigilancia, Universidad Tecnológica de Pereira-Audifarma S.A, Pereira, Risaralda, 660003, Colombia
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Biancalana E, Ceccarini G, Magno S, Ortenzi V, Giannese D, Santini F, Solini A. Canagliflozin on top of dual renin-angiotensin system blockade in a woman with partial acquired lipodystrophy, type 2 diabetes and severely proteinuric chronic kidney disease: a case report. Front Endocrinol (Lausanne) 2023; 14:1172468. [PMID: 37274321 PMCID: PMC10237351 DOI: 10.3389/fendo.2023.1172468] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/23/2023] [Accepted: 04/26/2023] [Indexed: 06/06/2023] Open
Abstract
Sodium glucose cotransporter 2 inhibitors have proven strong efficacy in reducing end-stage renal disease in patients with type 2 diabetes. We are presenting here the case of a 40-year-old woman with acquired partial lipodystrophy, type 2 diabetes and essential hypertension complicated by chronic kidney disease and proteinuria in the nephrotic range. She first came to our attention in 2012; estimated glomerular filtration rate (eGFR) was 41.5 ml/min/1.73 m2 and total proteinuria was 375 mg/24h; she was treated with dual renin angiotensin system blocking. Proteinuria significantly increased during the following years, reaching a nephrotic range (>5 g/day). A kidney biopsy revealed a tubule-interstitial involvement compatible with type 2 diabetes. Leptin replacement therapy, started in 2018, improved glycaemic control and lipid profile, also determining a reduction in insulin total daily dose. In 2019, after the publication of the CREDENCE study, canagliflozin was started on top of losartan and ramipril. After an initial, expected eGFR drop, kidney function stabilized, and albuminuria significantly reduced (from 4120 to 984 mg/24h), while serum potassium showed only minimal increase. At last follow-up (2022) total proteinuria was still reducing (510 mg/24h), while kidney function was substantially unchanged (eGFR 40 ml/min/1.73 m2). This case report suggests that, despite not recommended in international guidelines, the use of SGLT2i in combination with dual renin angiotensin system blockade should be considered in specific conditions and under close clinical monitoring.
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Affiliation(s)
- Edoardo Biancalana
- Department of Clinical and Experimental Medicine University of Pisa, Pisa, Italy
| | - Giovanni Ceccarini
- Obesity and Lipodistrophy Center, University Hospital of Pisa, Pisa, Italy
| | - Silvia Magno
- Obesity and Lipodistrophy Center, University Hospital of Pisa, Pisa, Italy
| | - Valerio Ortenzi
- Section of Pathology, University Hospital of Pisa, Pisa, Italy
| | | | - Ferruccio Santini
- Obesity and Lipodistrophy Center, University Hospital of Pisa, Pisa, Italy
| | - Anna Solini
- Department of Surgical, Medical, Molecular and Critical Area Pathology, University of Pisa, Pisa, Italy
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Capelli I, Ribichini D, Provenzano M, Vetrano D, Aiello V, Cianciolo G, Vicennati V, Tomassetti A, Moschione G, Berti S, Pagotto U, La Manna G. Impact of Baseline Clinical Variables on SGLT2i's Antiproteinuric Effect in Diabetic Kidney Disease. Life (Basel) 2023; 13:life13041061. [PMID: 37109590 PMCID: PMC10143899 DOI: 10.3390/life13041061] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Revised: 04/03/2023] [Accepted: 04/19/2023] [Indexed: 04/29/2023] Open
Abstract
INTRODUCTION Proteinuria is a major risk factor for the progression of chronic kidney disease (CKD). Sodium-glucose cotransporter 2 inhibitors (SGLT2i) demonstrated a nephroprotective and antiproteinuric effect in people with type 2 diabetes (T2DM) and proteinuric CKD. We conducted a retrospective study to evaluate clinical and laboratory variables that can help predict proteinuria reduction with SGLT2i therapy. MATERIALS AND METHODS Patients affected by T2DM and CKD who started any SGLT2i were included in the study. Patients were stratified into two subgroups, Responder (R) and non-Responder (nR), based upon the response to the therapy with SGLT2i, namely the reduction in a 24 h urine proteins test (uProt) of ≥30% from baseline levels. The aim of the study is to analyse differences in baseline characteristics between the two groups and to investigate the relationship between them and the proteinuria reduction. A Kruskal-Wallis test, unpaired t-test and Chi2 test were used to test the difference in means and the percentage (%) between the two groups. Linear and logistic regressions were utilized to analyse the relationship between proteinuria reduction and basal characteristics. RESULTS A total of 58 patients were enrolled in the study: 32 patients (55.1%) were in the R group and 26 patients (44.9%) in the nR group. R's patients had a significant higher uProt at baseline (1393 vs. 449 mg/24 h, p = 0.010). There was a significant correlation between baseline uProt and proteinuria reduction with SGLT2i in both univariate (β = -0.43, CI -0.55 to -031; p < 0.001) and multivariate analyses (β = -0.46, CI -0.57 to -0.35, p < 0.001). In the multivariate analysis, there was a significant positive correlation between the estimated glomerular filtration rate (eGFR) and proteinuria reduction (β = -17, CI -31 to -3.3, p = 0.016) and a significant negative correlation with body mass index (BMI) (β = 81, CI 13 to 50, p = 0.021). The multivariate logistic regressions show a positive correlation of being in the R group with diabetic retinopathy at baseline (Odds Ratio (OR) 3.65, CI 0.97 to 13.58, p = 0.054), while the presence of cardiovascular disease (CVD) at baseline is associated with being in the nR group (OR 0.34, CI 0.09 to 1.22, p = 0.1), even if these statements did not reach statistical significance. CONCLUSIONS In this real-life experience, following the administration of SGLT2i, a reduction of more than 30% in proteinuria was observed in more than half of the patients, and these patients had a significantly higher baseline proteinuria value. Variables such as eGFR and BMI are variables that, considered in conjunction with proteinuria, can help predict treatment response before therapy initiation. Different phenotypes of diabetic kidney disease may have an impact on the antiproteinuric response.
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Affiliation(s)
- Irene Capelli
- Nephrology, Dialysis and Renal Transplant Unit, IRCCS Azienda Ospedaliero-Universitaria di Bologna, 40138 Bologna, Italy
- Department of Medical and Surgical Sciences (DIMEC), Alma Mater Studiorum University of Bologna, 40138 Bologna, Italy
| | - Danilo Ribichini
- Division of Endocrinology and Diabetes Prevention and Care, IRCCS Azienda Ospedaliero-Universitaria di Bologna, 40138 Bologna, Italy
| | - Michele Provenzano
- Nephrology, Dialysis and Renal Transplant Unit, IRCCS Azienda Ospedaliero-Universitaria di Bologna, 40138 Bologna, Italy
- Department of Medical and Surgical Sciences (DIMEC), Alma Mater Studiorum University of Bologna, 40138 Bologna, Italy
| | - Daniele Vetrano
- Nephrology, Dialysis and Renal Transplant Unit, IRCCS Azienda Ospedaliero-Universitaria di Bologna, 40138 Bologna, Italy
- Department of Medical and Surgical Sciences (DIMEC), Alma Mater Studiorum University of Bologna, 40138 Bologna, Italy
| | - Valeria Aiello
- Nephrology, Dialysis and Renal Transplant Unit, IRCCS Azienda Ospedaliero-Universitaria di Bologna, 40138 Bologna, Italy
| | - Giuseppe Cianciolo
- Nephrology, Dialysis and Renal Transplant Unit, IRCCS Azienda Ospedaliero-Universitaria di Bologna, 40138 Bologna, Italy
| | - Valentina Vicennati
- Department of Medical and Surgical Sciences (DIMEC), Alma Mater Studiorum University of Bologna, 40138 Bologna, Italy
- Division of Endocrinology and Diabetes Prevention and Care, IRCCS Azienda Ospedaliero-Universitaria di Bologna, 40138 Bologna, Italy
| | - Alessandro Tomassetti
- Nephrology, Dialysis and Renal Transplant Unit, IRCCS Azienda Ospedaliero-Universitaria di Bologna, 40138 Bologna, Italy
- Department of Medical and Surgical Sciences (DIMEC), Alma Mater Studiorum University of Bologna, 40138 Bologna, Italy
| | - Ginevra Moschione
- Department of Medical and Surgical Sciences (DIMEC), Alma Mater Studiorum University of Bologna, 40138 Bologna, Italy
- Division of Endocrinology and Diabetes Prevention and Care, IRCCS Azienda Ospedaliero-Universitaria di Bologna, 40138 Bologna, Italy
| | - Sabrina Berti
- Department of Medical and Surgical Sciences (DIMEC), Alma Mater Studiorum University of Bologna, 40138 Bologna, Italy
- Division of Endocrinology and Diabetes Prevention and Care, IRCCS Azienda Ospedaliero-Universitaria di Bologna, 40138 Bologna, Italy
| | - Uberto Pagotto
- Department of Medical and Surgical Sciences (DIMEC), Alma Mater Studiorum University of Bologna, 40138 Bologna, Italy
- Division of Endocrinology and Diabetes Prevention and Care, IRCCS Azienda Ospedaliero-Universitaria di Bologna, 40138 Bologna, Italy
| | - Gaetano La Manna
- Nephrology, Dialysis and Renal Transplant Unit, IRCCS Azienda Ospedaliero-Universitaria di Bologna, 40138 Bologna, Italy
- Department of Medical and Surgical Sciences (DIMEC), Alma Mater Studiorum University of Bologna, 40138 Bologna, Italy
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Kalay Z, Sahin OE, Copur S, Danacı S, Ortiz A, Yau K, Cherney DZI, Kanbay M. SGLT-2 inhibitors in nephrotic-range proteinuria: emerging clinical evidence. Clin Kidney J 2022; 16:52-60. [PMID: 36726436 PMCID: PMC9871839 DOI: 10.1093/ckj/sfac189] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Indexed: 02/04/2023] Open
Abstract
Sodium-glucose cotransporter-2 (SGLT-2) inhibitors are a class of novel oral anti-hyperglycemic agents which are increasingly used in clinical practice. SGLT-2 inhibitors improve glycemic control and cardiorenal outcomes, promote weight loss, and reduce blood pressure. Randomized controlled trials have demonstrated that SGLT-2 inhibitors reduce proteinuria and delay progression of kidney disease in patients with albuminuria. However, whether SGLT-2 inhibitors have similar benefits in patients with nephrotic-range proteinuria has not been well established. Evidence to date has been limited to case reports, case series and secondary analyses of randomized controlled trials. This is the first comprehensive review on the effectiveness of SGLT-2 inhibitors for the treatment of patients with nephrotic-range albuminuria or proteinuria. Overall findings support a likely beneficial role of SGLT-2 inhibitors in reducing proteinuria and delaying chronic kidney disease progression in patients with nephrotic-range proteinuria.
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Affiliation(s)
- Zeynepgul Kalay
- Department of Medicine, Koc University School of Medicine, Istanbul, Turkey
| | - Ozgun E Sahin
- Department of Medicine, Koc University School of Medicine, Istanbul, Turkey
| | - Sidar Copur
- Department of Medicine, Koc University School of Medicine, Istanbul, Turkey
| | - Senem Danacı
- Department of Medicine, Koc University School of Medicine, Istanbul, Turkey
| | - Alberto Ortiz
- IIS-Fundacion Jimenez Diaz and School of Medicine, Universidad Autónoma de Madrid, Grupo Español de Estudio de la Nefropatia Diabetica, Madrid, Spain
| | - Kevin Yau
- Department of Medicine, Division of Nephrology, University Health Network, Toronto, Ontario, Canada,Department of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - David Z I Cherney
- Department of Medicine, Division of Nephrology, University Health Network, Toronto, Ontario, Canada,Department of Medicine, University of Toronto, Toronto, Ontario, Canada
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Abstract
Circulating blood is filtered across the glomerular barrier to form an ultrafiltrate of plasma in the Bowman's space. The volume of glomerular filtration adjusted by time is defined as the glomerular filtration rate (GFR), and the total GFR is the sum of all single-nephron GFRs. Thus, when the single-nephron GFR is increased in the context of a normal number of functioning nephrons, single glomerular hyperfiltration results in 'absolute' hyperfiltration in the kidney. 'Absolute' hyperfiltration can occur in healthy people after high protein intake, during pregnancy and in patients with diabetes, obesity or autosomal-dominant polycystic kidney disease. When the number of functioning nephrons is reduced, single-nephron glomerular hyperfiltration can result in a GFR that is within or below the normal range. This 'relative' hyperfiltration can occur in patients with a congenitally reduced nephron number or with an acquired reduction in nephron mass consequent to surgery or kidney disease. Improved understanding of the mechanisms that underlie 'absolute' and 'relative' glomerular hyperfiltration in different clinical settings, and of whether and how the single-nephron haemodynamic and related biomechanical forces that underlie glomerular hyperfiltration promote glomerular injury, will pave the way toward the development of novel therapeutic interventions that attenuate glomerular hyperfiltration and potentially prevent or limit consequent progressive kidney injury and loss of function.
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