scholarly journals Antihyperglycemic agents as novel natriuretic therapies in diabetic kidney disease

2018 ◽  
Vol 315 (5) ◽  
pp. F1406-F1415 ◽  
Author(s):  
David León Jiménez ◽  
David Z. I. Cherney ◽  
Petter Bjornstad ◽  
Luis Castilla-Guerra ◽  
José Pablo Miramontes González
Keyword(s):  
Type 2 Diabetes ◽  
Diabetic Kidney Disease ◽  
Sglt2 Inhibitors ◽  
Tubuloglomerular Feedback ◽  
Protective Effects ◽  
Sodium Glucose Cotransporter ◽  
Sglt2 Inhibition ◽  
Clinical Benefits ◽  
Intraglomerular Pressure

While sodium-glucose cotransporter-2 (SGLT2) inhibitors have been used for the routine management of type 2 diabetes for several years, it is perhaps their natriuretic effects that are most important clinically. This natriuresis activates tubuloglomerular feedback, resulting in reduced glomerular hypertension and proteinuria, leading to renal protective effects in the EMPA-REG OUTCOME and CANVAS Program trials. In the cardiovascular system, it is likely that plasma volume contraction due to natriuresis in response to SGLT2 inhibition is at least in part responsible for the reduction in the risk of heart failure observed in these trials. We compare this mechanism of action with other antidiabetics. Importantly, other diuretic classes, including thiazide and loop diuretics, have not resulted in such robust clinical benefits in patients with type 2 diabetes, possibly because these older agents do not influence intraglomerular pressure directly. In contrast, SGLT2 inhibitors do have important physiological similarities with carbonic anhydrase inhibitors, which also act proximally, and have been shown to activate tubuloglomerular feedback.

Mechanisms of Protective Effects of SGLT2 Inhibitors in Cardiovascular Disease and Renal Dysfunction

2019 ◽  
Vol 19 (20) ◽  
pp. 1818-1849 ◽  
Author(s):  
Ban Liu ◽  
Yuliang Wang ◽  
Yangyang Zhang ◽  
Biao Yan
Keyword(s):  
Diabetes Mellitus ◽  
Heart Failure ◽  
Type 2 Diabetes ◽  
Type 2 Diabetes Mellitus ◽  
Renal Dysfunction ◽  
Sglt2 Inhibitors ◽  
Sodium Glucose Cotransporter ◽  
Glucose Reabsorption ◽  
Renal Glucose Reabsorption

: Type 2 diabetes mellitus is one of the most common forms of the disease worldwide. Hyperglycemia and insulin resistance play key roles in type 2 diabetes mellitus. Renal glucose reabsorption is an essential feature in glycaemic control. Kidneys filter 160 g of glucose daily in healthy subjects under euglycaemic conditions. The expanding epidemic of diabetes leads to a prevalence of diabetes-related cardiovascular disorders, in particular, heart failure and renal dysfunction. Cellular glucose uptake is a fundamental process for homeostasis, growth, and metabolism. In humans, three families of glucose transporters have been identified, including the glucose facilitators GLUTs, the sodium-glucose cotransporter SGLTs, and the recently identified SWEETs. Structures of the major isoforms of all three families were studied. Sodium-glucose cotransporter (SGLT2) provides most of the capacity for renal glucose reabsorption in the early proximal tubule. A number of cardiovascular outcome trials in patients with type 2 diabetes have been studied with SGLT2 inhibitors reducing cardiovascular morbidity and mortality. : The current review article summarises these aspects and discusses possible mechanisms with SGLT2 inhibitors in protecting heart failure and renal dysfunction in diabetic patients. Through glucosuria, SGLT2 inhibitors reduce body weight and body fat, and shift substrate utilisation from carbohydrates to lipids and, possibly, ketone bodies. These pleiotropic effects of SGLT2 inhibitors are likely to have contributed to the results of the EMPA-REG OUTCOME trial in which the SGLT2 inhibitor, empagliflozin, slowed down the progression of chronic kidney disease and reduced major adverse cardiovascular events in high-risk individuals with type 2 diabetes. This review discusses the role of SGLT2 in the physiology and pathophysiology of renal glucose reabsorption and outlines the unexpected logic of inhibiting SGLT2 in the diabetic kidney.

scholarly journals Mitigation of the Adverse Consequences of Nutrient Excess on the Kidney: A Unified Hypothesis to Explain the Renoprotective Effects of Sodium-Glucose Cotransporter 2 Inhibitors

2020 ◽  
Vol 51 (4) ◽  
pp. 289-293 ◽  
Author(s):  
Milton Packer
Keyword(s):  
Type 2 Diabetes ◽  
Adipose Tissue ◽  
Renin Angiotensin System ◽  
Tissue Expansion ◽  
Adenosine Monophosphate ◽  
Sglt2 Inhibitors ◽  
Sirtuin 1 ◽  
Glomerular Hyperfiltration ◽  
Sodium Glucose Cotransporter

The 2 most common causes of chronic kidney disease worldwide (type 2 diabetes and obesity) are states of nutrient excess, suggesting that fuel overabundance leads to deleterious effects on the structure and function of the kidneys. Three pathophysiological pathways may potentially explain this linkage. First, both obesity and type 2 diabetes are characterized by glomerular hyperfiltration, which may result from increased proximal tubular reabsorption of sodium (due to enhanced glucose and sodium transport) coupled with activation of the renin-angiotensin system. Second, both obesity and type 2 diabetes are characterized by adipose tissue expansion and inflammation, followed by the augmented synthesis and release of lipid intermediates and proinflammatory adipocytokines that can have deleterious effects on the kidney. Third, states of nutrient excess cause a diminution in the activation of the energy sensors, sirtuin-1 (SIRT1) and adenosine monophosphate-activated protein kinase (AMPK). The result is a suppression of autophagy, a lysosomal degradative pathway that is responsible for the clearance of damaged organelles that are an important source of oxidative and endoplasmic reticulum stress and inflammation. Sodium-glucose cotransporter 2 (SGLT2) inhibitors induces a transcriptional paradigm that mimics fasting, which leads to the amelioration of glomerular hyperfiltration and adipose tissue inflammation as well as augmentation of AMPK/SIRT1 signaling and autophagy, thereby acting to mute organellar and cellular stress in the kidney. Therefore, SGLT2 inhibitors are positioned to antagonize all 3 pathways by which nutrient excess can lead to nephropathy.

scholarly journals Renal haemodynamic and protective effects of renoactive drugs in type 2 diabetes: Interaction with SGLT2 inhibitors

Nephrology ◽  
2021 ◽  
Author(s):  
Rosalie A. Scholtes ◽  
Michaël J. B. Baar ◽  
Megan D. Kok ◽  
Petter Bjornstad ◽  
David Z. I. Cherney ◽  
...  
Keyword(s):  
Type 2 Diabetes ◽  
Sglt2 Inhibitors ◽  
Protective Effects

scholarly journals Impact of sodium–glucose cotransporter 2 inhibitors on renal function in participants with type 2 diabetes and chronic kidney disease with normoalbuminuria

2020 ◽  
Vol 12 (1) ◽  
Author(s):  
Akinobu Nakamura ◽  
Hideaki Miyoshi ◽  
Hiraku Kameda ◽  
Kumiko Yamashita ◽  
Yoshio Kurihara
Keyword(s):  
Type 2 Diabetes ◽  
Chronic Kidney Disease ◽  
Renal Function ◽  
Kidney Disease ◽  
Sglt2 Inhibitor ◽  
Sglt2 Inhibitors ◽  
Creatinine Ratio ◽  
Sodium Glucose Cotransporter ◽  
Clinical Records

Abstract Background We compared the effects of sodium–glucose cotransporter 2 (SGLT2) inhibitors on renal function in participants with type 2 diabetes and chronic kidney disease (CKD) classified by degree of albuminuria. Methods A retrospective review of the clinical records of Japanese participants with type 2 diabetes (age > 20 years; SGLT2 inhibitor treatment > 2 years; estimated glomerular filtration rate (eGFR) < 60 mL/min/1.73 m2) was conducted. Based on the urinary albumin-to-creatinine ratio (UACR) or urinary protein-to-creatinine ratio (UPCR) at the start of SGLT2 inhibitor administration, participants were categorized into three groups: normoalbuminuria (A1; UACR < 30 mg/g Cr or UPCR < 0.15 g/g Cr), microalbuminuria (A2; UACR 30 to < 300 mg/g Cr or UPCR 0.15 to < 0.50 g/g Cr), and macroalbuminuria (A3; UACR ≥ 300 mg/g Cr or UPCR ≥ 0.50 g/g Cr). The study outcome was a comparison of the rates of change in renal function evaluated by eGFR at 2 years after starting SGLT2 inhibitor among the three groups. Results A total of 87 participants (40 females, 47 males) were categorized into three groups: A1 (n = 46), A2 (n = 25), and A3 (n = 16). eGFR was similarly decreased at 2 years before starting SGLT2 inhibitor in all three groups. However, the decline in eGFR was ameliorated at 2 years after starting SGLT2 inhibitor, and eGFR was rather increased in the A1 and A2 groups. Interestingly, the rate of change in eGFR at 2 years after starting SGLT2 inhibitor in the A1 group was significantly higher than that in the A3 group. Conclusions These results demonstrate that more favorable effects of SGLT2 inhibitors on renal function were observed in participants with type 2 diabetes and CKD with normoalbuminuria compared with those with macroalbuminuria. Trial registration UMIN-CTR: UMIN000035263. Registered 15 December 2018

scholarly journals Inhibition of Sodium Glucose Cotransporter 2 Attenuates the Dysregulation of Kelch-Like 3 and NaCl Cotransporter in Obese Diabetic Mice

2019 ◽  
Vol 30 (5) ◽  
pp. 782-794 ◽  
Author(s):  
Kenichi Ishizawa ◽  
Qin Wang ◽  
Jinping Li ◽  
Ning Xu ◽  
Yoshikazu Nemoto ◽  
...  
Keyword(s):  
Type 2 Diabetes ◽  
Cultured Cells ◽  
Sglt2 Inhibitor ◽  
Distal Convoluted Tubule ◽  
Protective Effects ◽  
Human Embryonic Kidney Cells ◽  
Sodium Glucose Cotransporter ◽  
Tubule Cells ◽  
Nacl Cotransporter

BackgroundMechanisms underlying the frequent association between salt-sensitive hypertension and type 2 diabetes remain obscure. We previously found that protein kinase C (PKC) activation phosphorylates Kelch-like 3 (KLHL3), an E3 ubiquitin ligase component, at serine 433. We investigated whether impaired KLHL3 activity results in increased renal salt reabsorption via NaCl cotransporter (NCC).MethodsWe used the db/db diabetes mouse model to explore KLHL3′s role in renal salt handling in type 2 diabetes and evaluated mechanisms of KLHL3 dysregulation in cultured cells.ResultsWe observed PKC activity in the db/db mouse kidney and phosphorylation of serine 433 in KLHL3 (KLHL3S433-P). This modification prevents binding of with-no-lysine (WNK) kinases; however, total KLHL3 levels were decreased, indicating severely impaired KLHL3 activity. This resulted in WNK accumulation, activating NCC in distal convoluted tubules. Ipragliflozin, a sodium glucose cotransporter 2 (SGLT2) inhibitor, lowered PKC activity in distal convoluted tubule cells and reduced KLHL3S433-P and NCC levels, whereas the thiazolidinedione pioglitazone did not, although the two agents similarly reduced in blood glucose levels. We found that, in human embryonic kidney cells expressing KLHL3 and distal convoluted tubule cells, cellular glucose accumulation increased KLHL3S433-P levels through PKC. Finally, the effect of PKC inhibition in the kidney of db/db mice confirmed PKC’s causal role in KLHL3S433-P and NCC induction.ConclusionsDysregulation of KLHL3 is involved in the pathophysiology of type 2 diabetes. These data offer a rationale for use of thiazide in individuals with diabetes and provide insights into the mechanism for cardiorenal protective effects of SGLT2 inhibitors.

scholarly journals Effects of SGLT2 Inhibitors on Circulating Stem and Progenitor Cells in Patients With Type 2 Diabetes

2018 ◽  
Vol 103 (10) ◽  
pp. 3773-3782 ◽  
Author(s):  
Benedetta Maria Bonora ◽  
Roberta Cappellari ◽  
Mattia Albiero ◽  
Angelo Avogaro ◽  
Gian Paolo Fadini
Keyword(s):  
Type 2 Diabetes ◽  
Placebo Group ◽  
Progenitor Cells ◽  
Sglt2 Inhibitors ◽  
Open Label ◽  
Sodium Glucose Cotransporter ◽  
Open Label Extension ◽  
Stem And Progenitor Cells ◽  
Extension Period

Abstract Context Reduction in the levels of circulating stem cells (CSCs) and endothelial progenitor cells (EPCs) predicts development or progression of microangiopathy and macroangiopathy in patients with type 2 diabetes (T2D). Objective We tested whether treatment with sodium glucose cotransporter-2 (SGLT2) inhibitors affected the levels of CSCs and EPCs. Design A randomized trial of dapagliflozin vs placebo with open-label extension, and an open-label observational study of empagliflozin treatment. Setting Tertiary referral diabetes outpatient clinic. Patients Patients with T2D aged 18 to 75 years. Intervention Dapagliflozin at 10 mg vs placebo (n = 31); empagliflozin at 10 mg (n = 15). Main Outcome Measures We measured CSCs (CD34+) and EPCs (CD34+KDR+) by flow cytometry at baseline, at 12 weeks, and after the extension period. Results After 12 weeks, CSCs declined nonsignificantly in the dapagliflozin group, remained stable in the placebo group, and the change from baseline was not significantly different between the two groups. EPCs declined nonsignificantly in the dapagliflozin group, increased nonsignificantly in the placebo group, and the change from baseline was significantly different between the two groups. After an open-label extension period of about 1.5 years, CSCs remained stable over time, whereas EPCs significantly increased in patients who received dapagliflozin. In all patients, irrespectively of treatment, EPCs increased significantly from baseline to the end of observation, concomitantly with improvement in HbA1c. In a cohort of 15 patients who received open-label empagliflozin for 12 weeks, CSCs declined nonsignificantly, whereas EPCs remained stable. Conclusion SGLT2 inhibitors do not significantly increase CSCs or EPCs. Thus, cardiovascular protection by SGLT2 inhibitors may not directly involve stem/progenitor cells.

scholarly journals Pharmacoeconomic evaluation of ipragliflozin in combination with metformin in comparison with other regimens of therapy for type 2 diabetes mellitus

2021 ◽  
pp. 50-63
Author(s):  
A. S. Kolbin ◽  
A. A. Kurylev ◽  
Yu. E. Balykina ◽  
M. A. Proskurin
Keyword(s):  
Type 2 Diabetes ◽  
Cost Effectiveness ◽  
Weighted Average ◽  
Sglt2 Inhibitors ◽  
Cost Effectiveness Ratio ◽  
Glucose Lowering ◽  
Lowering Therapy ◽  
Sodium Glucose Cotransporter ◽  
Glucose Lowering Therapy

Ipragliflozin is a selective sodium-glucose cotransporter 2 (SGLT2) inhibitor that reduce plasma glucose concentrations by inhibiting glucose reabsorption by the kidney through inhibiting SGLT2 sodium-glucose cotransporter and induce glycosuria. SGLT2 inhibitors are a new class of glucose lowering drugs most recently approved for treatment of type 2 diabetes mellitus (T2DM). Unlike other antidiabetic agents, SGLT2 inhibitors improve glycemic control (by HbA1c) and provide multiple additional benefits, including decreased body weight, blood pressure, and other multiple pleiotropic effects. The completed clinical trials and real world data have provided evidence that including of SGLT2 inhibitors in the treatment of T2DM has benefits of reduction of cardiovascular and renal outcomes. Goal. The aim of the study was to conduct a clinical and economic examination of ipragliflozin in comparison with other regimens of glucose-lowering therapy with other SGLT2 inhibitors. Methods. In carrying out the pharmacoeconomic analysis itself, a cost-effectiveness analysis (CEA) was applied with the calculation of the corresponding cost-effectiveness ratio (CER), incremental cost-effectiveness ratio (ICER) according to the formula, as well as an a «budget impact analysis». Multiple one-way sensitivity analysis, check the robustness of the results of the main scenario results to changes in key parameters such as the cost of drugs and complications of diabetes. The time horizon for analyzing the dynamics of economic consequences when using ipragliflozin as a glucose-lowering therapy for T2DM was 5 years. Results. The weighted average cost per patient per year when using the ipragliflozin treatment strategy is 31,182 rubles. The costs of the empagliflozin strategy are 61,291 rubles per patient. In the case of using dapagliflozin, the weighted average costs are 30,032 rubles per patient per year, the total direct medical costs for the current drug therapy option, calculated on the initial number of target practice in 72,143 patients with type 2 diabetes, amounted to 3,068,642,442 rubles. Analysis of the trend of changes in weighted average costs showed that the broader use of ipragliflozin for the treatment of T2DM in the target population leads to reducing in diabetes related direct medical costs by 6.7 %, while the total economic effect of ipragliflozin introduction over five years will be 501,539,327 rubles. Conclusions. Use of ipragliflozin + metformin in T2DM treatment is a cost-effective strategy compared to empagliflozin + metformin. The combination of ipragliflozin with metformin versus dapagliflozin + metformin is economically feasible in terms of cost-effectiveness.

scholarly journals New SGLT2 inhibitor ertugliflozin: safe and effective in the management of type 2 diabetes

2020 ◽  
pp. 32-41
Author(s):  
V. V. Salukho ◽  
T. A. Ilyinskay
Keyword(s):  
Type 2 Diabetes ◽  
Body Mass ◽  
Clinical Studies ◽  
Sglt2 Inhibitor ◽  
Evidence Base ◽  
Sglt2 Inhibitors ◽  
Adverse Outcomes ◽  
Positive Effects ◽  
Sodium Glucose Cotransporter

Type 2 diabetes mellitus (T2DM) is closely associated with the risk of developing cardiovascular complications. A new approach to treatment of T2DM, based on the inhibition of the sodium-glucose cotransporter type 2 (SGLT2) ensures reliable insulin-independent glycemic control with quick overcome of glucotoxicity, reduction of insulin resistance, and positive effects on body mass, blood pressure and other rates. Besides, pronounces clinical efficacy of SGLT2 inhibitor is marked by its use safety and minimized frequency of adverse events. Along with this, the results of carried-out, randomized clinical studies of cardiovascular safety of different SGLT2 inhibitors showed, that apart from bearing on the risk factors, the inhibition of sodium-glucose cotransporter type 2 leads to cardioand renoprotective effects. In addition, their influence on cardiovascular and renal outcomes is the stronger the more different the pre-existing status of cardiovascular diseases of the patient is, the condition of his renal function and the severity of albuminuria. This article summarizes the main results of carried-out randomized clinical studies of SGLT2 inhibitors, which demonstrate their cardiovascular advantages and compile encouraging results of multicentered studies VERTIS, examining different aspects of the use of the ertugliflazine SGLT2 inhibitor in patients with type 2 diabetes. There is data provided demonstrating a powerful glucoselowering, body-mass lowering and hypotensive impacts of ertugliflazine comparable to the same performance of the best representatives of the class. This article describes an evidence base of the use of the drug in monotherapy and its ability to be combined with other oral hypoglycemic agentsand highlightes a high level of safety of the use of ertugliflazine correspondinding to minimized frequency of adverse outcomes of SGLT2 inhibition and so the potential of SGLT2 inhibitors as a new promising class for the treatment of patients with type 2 diabetes and established cardiovascular disease is revealed.

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