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Chuang MH, Tang YS, Chen JY, Pan HC, Liao HW, Chu WK, Cheng CY, Wu VC, Heung M. Abrupt Decline in Estimated Glomerular Filtration Rate after Initiating Sodium-Glucose Cotransporter 2 Inhibitors Predicts Clinical Outcomes: A Systematic Review and Meta-Analysis. Diabetes Metab J 2024; 48:242-252. [PMID: 38273790 PMCID: PMC10995480 DOI: 10.4093/dmj.2023.0201] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/24/2023] [Accepted: 09/25/2023] [Indexed: 01/27/2024] Open
Abstract
BACKGRUOUND The initiation of sodium-glucose cotransporter-2 inhibitors (SGLT2i) typically leads to a reversible initial dip in estimated glomerular filtration rate (eGFR). The implications of this phenomenon on clinical outcomes are not well-defined. METHODS We searched MEDLINE, Embase, and Cochrane Library from inception to March 23, 2023 to identify randomized controlled trials and cohort studies comparing kidney and cardiovascular outcomes in patients with and without initial eGFR dip after initiating SGLT2i. Pooled estimates were calculated using random-effect meta-analysis. RESULTS We included seven studies in our analysis, which revealed that an initial eGFR dip following the initiation of SGLT2i was associated with less annual eGFR decline (mean difference, 0.64; 95% confidence interval [CI], 0.437 to 0.843) regardless of baseline eGFR. The risk of major adverse kidney events was similar between the non-dipping and dipping groups but reduced in patients with a ≤10% eGFR dip (hazard ratio [HR], 0.915; 95% CI, 0.865 to 0.967). No significant differences were observed in the composite of hospitalized heart failure and cardiovascular death (HR, 0.824; 95% CI, 0.633 to 1.074), hospitalized heart failure (HR, 1.059; 95% CI, 0.574 to 1.952), or all-cause mortality (HR, 0.83; 95% CI, 0.589 to 1.170). The risk of serious adverse events (AEs), discontinuation of SGLT2i due to AEs, kidney-related AEs, and volume depletion were similar between the two groups. Patients with >10% eGFR dip had increased risk of hyperkalemia compared to the non-dipping group. CONCLUSION Initial eGFR dip after initiating SGLT2i might be associated with less annual eGFR decline. There were no significant disparities in the risks of adverse cardiovascular outcomes between the dipping and non-dipping groups.
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Affiliation(s)
- Min-Hsiang Chuang
- Department of Internal Medicine, Chi Mei Medical Center, Tainan, Taiwan
| | - Yu-Shuo Tang
- Division of Nephrology, Department of Internal Medicine, Wan Fang Hospital, Taipei Medical University, Taipei, Taiwan
- Taipei Medical University Research Center of Urology and Kidney, Taipei, Taiwan
| | - Jui-Yi Chen
- Division of Nephrology, Department of Internal Medicine, Chi Mei Medical Center, Tainan, Taiwan
- Department of Health and Nutrition, Chia Nan University of Pharmacy and Science, Tainan, Taiwan
| | - Heng-Chih Pan
- Division of Nephrology, Department of Internal Medicine, Keelung Chang Gung Memorial Hospital, Keelung, Taiwan
| | - Hung-Wei Liao
- Division of Nephrology, Department of Internal Medicine, Wan Fang Hospital, Taipei Medical University, Taipei, Taiwan
- Division of Nephrology, Department of Internal Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Wen-Kai Chu
- Department of Internal Medicine, National Taiwan University Hospital, National Taiwan University College of Medicine, Taipei, Taiwan
| | - Chung-Yi Cheng
- Division of Nephrology, Department of Internal Medicine, Wan Fang Hospital, Taipei Medical University, Taipei, Taiwan
- Taipei Medical University Research Center of Urology and Kidney, Taipei, Taiwan
- Division of Nephrology, Department of Internal Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Vin-Cent Wu
- Division of Nephrology, Department of Internal Medicine, National Taiwan University Hospital, National Taiwan University College of Medicine, Taipei, Taiwan
| | - Michael Heung
- Division of Nephrology, Department of Medicine, University of Michigan, Ann Arbor, MI, USA
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Stehle D, Xu MZ, Schomber T, Hahn MG, Schweda F, Feil S, Kraehling JR, Eitner F, Patzak A, Sandner P, Feil R, Bénardeau A. Novel soluble guanylyl cyclase activators increase glomerular cGMP, induce vasodilation and improve blood flow in the murine kidney. Br J Pharmacol 2021; 179:2476-2489. [PMID: 34096053 PMCID: PMC9292672 DOI: 10.1111/bph.15586] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2020] [Revised: 04/07/2021] [Accepted: 05/23/2021] [Indexed: 12/30/2022] Open
Abstract
BACKGROUND AND PURPOSE Generation of cGMP via NO-sensitive soluble guanylyl cyclase (sGC) has been implicated in the regulation of renal functions. Chronic kidney disease (CKD) is associated with decreased NO bioavailability, increased oxidative stress and oxidation of sGC to its haem-free form, apo-sGC. Apo-sGC cannot be activated by NO, resulting in impaired cGMP signalling that is associated with chronic kidney disease progression. We hypothesised that sGC activators, which activate apo-sGC independently of NO, increase renal cGMP production under conditions of oxidative stress, thereby improving renal blood flow (RBF) and kidney function. EXPERIMENTAL APPROACH Two novel sGC activators, runcaciguat and BAY-543, were tested on murine kidney. We measured cGMP levels in real time in kidney slices of cGMP sensor mice, vasodilation of pre-constricted glomerular arterioles and RBF in isolated perfused kidneys. Experiments were performed at baseline conditions, under L-NAME-induced NO deficiency, and in the presence of oxidative stress induced by ODQ. KEY RESULTS Mouse glomeruli showed NO-induced cGMP increases. Under baseline conditions, sGC activator did not alter glomerular cGMP concentration or NO-induced cGMP generation. In the presence of ODQ, NO-induced glomerular cGMP signals were markedly reduced, whereas sGC activator induced strong cGMP increases. L-NAME and ODQ pretreated isolated glomerular arterioles were strongly dilated by sGC activator. sGC activator also increased cGMP and RBF in ODQ-perfused kidneys. CONCLUSION AND IMPLICATION sGC activators increase glomerular cGMP, dilate glomerular arterioles and improve RBF under disease-relevant oxidative stress conditions. Therefore, sGC activators represent a promising class of drugs for chronic kidney disease treatment.
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Affiliation(s)
- Daniel Stehle
- Interfakultäres Institut für Biochemie (IFIB), University of Tübingen, Tübingen, Germany
| | - Min Ze Xu
- Institute of Vegetative Physiology, Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany
| | - Tibor Schomber
- Bayer AG, Cardiovascular Research, Pharma Research Center, Wuppertal, Germany
| | - Michael G Hahn
- Bayer AG, Cardiovascular Research, Pharma Research Center, Wuppertal, Germany
| | - Frank Schweda
- Institut für Physiologie, Universität Regensburg, Regensburg, Germany
| | - Susanne Feil
- Interfakultäres Institut für Biochemie (IFIB), University of Tübingen, Tübingen, Germany
| | - Jan R Kraehling
- Bayer AG, Cardiovascular Research, Pharma Research Center, Wuppertal, Germany
| | - Frank Eitner
- Bayer AG, Cardiovascular Research, Pharma Research Center, Wuppertal, Germany.,Division of Nephrology and Clinical Immunology, RWTH Aachen University, Aachen, Germany
| | - Andreas Patzak
- Institute of Vegetative Physiology, Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany
| | - Peter Sandner
- Bayer AG, Cardiovascular Research, Pharma Research Center, Wuppertal, Germany.,Institute of Pharmacology, Hannover Medical School, Hannover, Germany
| | - Robert Feil
- Interfakultäres Institut für Biochemie (IFIB), University of Tübingen, Tübingen, Germany
| | - Agnès Bénardeau
- Bayer AG, Cardiovascular Research, Pharma Research Center, Wuppertal, Germany.,Novo Nordisk A/S, Cardio-Renal Biology, Måløv, Denmark
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