Abstract
Background
Albuminuria is a biomarker for chronic kidney disease and an independent predictor of cardiovascular and all-cause mortality. A recent meta-analysis concluded that these risks increase with urinary albumin concentration, even when below the microalbuminuria threshold. Thus, minimizing urinary albumin may be a valuable therapeutic goal regardless of disease status.
Methods
We investigated the benefits and safety of a 12-week lifestyle modification program including diet and combined aerobic and resistance exercise for reducing albuminuria in 295 normoalbuminuric or microalbuminuric Japanese adults, including 30 with type 2 diabetes mellitus (T2DM), 104 with metabolic syndrome (MS), and 145 with hypertension (HT).
Results
In the study population, the urinary albumin:creatinine ratio (UACR) was reduced significantly (ΔUACR −3.8 ± 16.8 mg/g, P < 0.001) with no change in estimated glomerular filtration rate (eGFR) (ΔeGFR −0.4 ± 7.4 mL/min/1.73 m2, P = 0.343). The reduction in UACR was associated with decreased fasting plasma glucose (P < 0.05). The UACR was also reduced in the T2DM, MS, and HT groups with no change in eGFR. Reduced UACR was associated with decreased fasting plasma glucose in the MS group and decreased systolic blood pressure in the HT group. The UACR was also reduced in 46 subjects using renin–angiotensin system inhibitors with no change in eGFR.
Conclusions
Our 12-week lifestyle modification program reduced UACR, maintained eGFR, and improved multiple fitness findings in Japanese subjects including T2DM, MS, and HT patients.
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Acknowledgments
We thank Dr. Masao Hashiba for expert advice, and Miwa Mitome and Kimie Ishizumi for technical assistance.
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The authors have declared that no conflict of interest exists.
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Yamamoto-Kabasawa, K., Hosojima, M., Yata, Y. et al. Benefits of a 12-week lifestyle modification program including diet and combined aerobic and resistance exercise on albuminuria in diabetic and non-diabetic Japanese populations. Clin Exp Nephrol 19, 1079–1089 (2015). https://doi.org/10.1007/s10157-015-1103-5
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DOI: https://doi.org/10.1007/s10157-015-1103-5