Correlation between albuminuria and interstitial injury marker reductions associated with SGLT2 inhibitor treatment in diabetic patients with renal dysfunction

Abstract Background We investigated the effects of sodium–glucose cotransporter 2 inhibitor (SGLT2i) administration focusing on its involvement in tubulo-interstitial disorders in diabetic kidney. Methods Enrolled patients with diabetic kidney disease received a mean dose of 52.3 mg of an SGLT2i (ip...

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Main Authors: Saeko Sato, Kaori Takayanagi, Taisuke Shimizu, Koichi Kanozawa, Takatsugu Iwashita, Hajime Hasegawa
Format: Article
Language:English
Published: BMC 2022-08-01
Series:European Journal of Medical Research
Subjects:
Online Access:https://doi.org/10.1186/s40001-022-00737-5
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author Saeko Sato
Kaori Takayanagi
Taisuke Shimizu
Koichi Kanozawa
Takatsugu Iwashita
Hajime Hasegawa
author_facet Saeko Sato
Kaori Takayanagi
Taisuke Shimizu
Koichi Kanozawa
Takatsugu Iwashita
Hajime Hasegawa
author_sort Saeko Sato
collection DOAJ
description Abstract Background We investigated the effects of sodium–glucose cotransporter 2 inhibitor (SGLT2i) administration focusing on its involvement in tubulo-interstitial disorders in diabetic kidney. Methods Enrolled patients with diabetic kidney disease received a mean dose of 52.3 mg of an SGLT2i (ipragliflozin) daily. Blood and urine were sampled at 0, 1, and 12 months (M). Results Non-renal-dysfunction patients (NRD: baseline eGFR ≥ 60 mL/min/1.73 m2, n = 12) and renal-dysfunction patients (RD: baseline eGFR < 60 mL/min/1.73 m2, n = 9) were analyzed separately. The median urine albumin-to-Cr ratio (ACR) was significantly decreased at 1 M in both groups (NRD: 163.1 at 0 M vs 118.5 mg/g Cr at 1 M, RD: 325.2 at 0 M vs 136.0 mg/g Cr at 1 M). In the RD, but not the NRD group, reduction of urine monocyte chemotactic protein-1 (MCP-1) by SGLT2i showed a significant difference between high-responders (HR: − 25.7 ± 11.4%) and low-responders (LR: 59.2 ± 17.0%), defined by ACR reduction at 1 M. Univariate analysis showed a significant correlation between the reduction of ACR and MCP-1 (R = 0.683, p = 0.042) in RD. Conclusion SGLT2i exerted an anti-albuminuric effect regardless of the presence/absence of renal dysfunction. However, the anti-albuminuric effect of SGLT2i in patients with renal dysfunction appears more closely associated with amelioration of tubulo-interstitial disorders compared to patients without renal dysfunction.
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spelling doaj.art-996f082aa62c47008eda3563137b0dd32022-12-22T02:33:41ZengBMCEuropean Journal of Medical Research2047-783X2022-08-012711910.1186/s40001-022-00737-5Correlation between albuminuria and interstitial injury marker reductions associated with SGLT2 inhibitor treatment in diabetic patients with renal dysfunctionSaeko Sato0Kaori Takayanagi1Taisuke Shimizu2Koichi Kanozawa3Takatsugu Iwashita4Hajime Hasegawa5Department of Nephrology and Hypertension, Saitama Medical Center, Saitama Medical UniversityDepartment of Nephrology and Hypertension, Saitama Medical Center, Saitama Medical UniversityDepartment of Nephrology and Hypertension, Saitama Medical Center, Saitama Medical UniversityDepartment of Nephrology and Hypertension, Saitama Medical Center, Saitama Medical UniversityDepartment of Nephrology and Hypertension, Saitama Medical Center, Saitama Medical UniversityDepartment of Nephrology and Hypertension, Saitama Medical Center, Saitama Medical UniversityAbstract Background We investigated the effects of sodium–glucose cotransporter 2 inhibitor (SGLT2i) administration focusing on its involvement in tubulo-interstitial disorders in diabetic kidney. Methods Enrolled patients with diabetic kidney disease received a mean dose of 52.3 mg of an SGLT2i (ipragliflozin) daily. Blood and urine were sampled at 0, 1, and 12 months (M). Results Non-renal-dysfunction patients (NRD: baseline eGFR ≥ 60 mL/min/1.73 m2, n = 12) and renal-dysfunction patients (RD: baseline eGFR < 60 mL/min/1.73 m2, n = 9) were analyzed separately. The median urine albumin-to-Cr ratio (ACR) was significantly decreased at 1 M in both groups (NRD: 163.1 at 0 M vs 118.5 mg/g Cr at 1 M, RD: 325.2 at 0 M vs 136.0 mg/g Cr at 1 M). In the RD, but not the NRD group, reduction of urine monocyte chemotactic protein-1 (MCP-1) by SGLT2i showed a significant difference between high-responders (HR: − 25.7 ± 11.4%) and low-responders (LR: 59.2 ± 17.0%), defined by ACR reduction at 1 M. Univariate analysis showed a significant correlation between the reduction of ACR and MCP-1 (R = 0.683, p = 0.042) in RD. Conclusion SGLT2i exerted an anti-albuminuric effect regardless of the presence/absence of renal dysfunction. However, the anti-albuminuric effect of SGLT2i in patients with renal dysfunction appears more closely associated with amelioration of tubulo-interstitial disorders compared to patients without renal dysfunction.https://doi.org/10.1186/s40001-022-00737-5Diabetic tubulopathyFibrosisMCP-1ProteinuriaType 2 diabetesN-Acetyl-β-D-glucosaminidase
spellingShingle Saeko Sato
Kaori Takayanagi
Taisuke Shimizu
Koichi Kanozawa
Takatsugu Iwashita
Hajime Hasegawa
Correlation between albuminuria and interstitial injury marker reductions associated with SGLT2 inhibitor treatment in diabetic patients with renal dysfunction
European Journal of Medical Research
Diabetic tubulopathy
Fibrosis
MCP-1
Proteinuria
Type 2 diabetes
N-Acetyl-β-D-glucosaminidase
title Correlation between albuminuria and interstitial injury marker reductions associated with SGLT2 inhibitor treatment in diabetic patients with renal dysfunction
title_full Correlation between albuminuria and interstitial injury marker reductions associated with SGLT2 inhibitor treatment in diabetic patients with renal dysfunction
title_fullStr Correlation between albuminuria and interstitial injury marker reductions associated with SGLT2 inhibitor treatment in diabetic patients with renal dysfunction
title_full_unstemmed Correlation between albuminuria and interstitial injury marker reductions associated with SGLT2 inhibitor treatment in diabetic patients with renal dysfunction
title_short Correlation between albuminuria and interstitial injury marker reductions associated with SGLT2 inhibitor treatment in diabetic patients with renal dysfunction
title_sort correlation between albuminuria and interstitial injury marker reductions associated with sglt2 inhibitor treatment in diabetic patients with renal dysfunction
topic Diabetic tubulopathy
Fibrosis
MCP-1
Proteinuria
Type 2 diabetes
N-Acetyl-β-D-glucosaminidase
url https://doi.org/10.1186/s40001-022-00737-5
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