[Obesity and progression of chronic renal insufficiency: a Czech long term prospective double-blind randomised...

Area of Science:

• Nephrology
• Metabolic Disorders
• Nutritional Science

Context:

• Obesity is a significant risk factor for chronic renal failure (CRF) patients.
• Management of CRF often involves dietary interventions and pharmacotherapy (ACEI + ARB).
• Limited data exists on the efficacy of specific interventions targeting obesity in advanced CRF.

Purpose:

• To evaluate the effect of keto amino acid supplementation on obesity markers and renal function in CRF patients.
• To assess the impact of this intervention on metabolic parameters, nutritional status, and endothelial dysfunction.
• To determine if obesity treatment improves long-term prognosis in CRF.

Summary:

• A 3-year prospective, double-blind, randomized study involved 66 obese (BMI ≥ 30 kg/m²) CRF patients (GFR 24.4-37.3 ml/min) on a low-protein diet.
• Patients received either keto amino acids (n=34) or placebo (n=32).
• The intervention group showed significant reductions in BMI, proteinuria, and a slower decline in renal function (C(in)).
• Significant improvements were observed in albumin, transferrin, leucine, WQ, glycemic control (HbA1c), triglycerides, leptin, ObRe, endothelial markers (ET1, TGFβ1), and parathyroid hormone (PTH).

Impact:

• Keto amino acid supplementation effectively manages obesity in CRF patients.
• The intervention significantly improves metabolic profiles, nutritional status, and reduces markers of endothelial dysfunction.
• Successful obesity management can substantially enhance the long-term prognosis for individuals with chronic renal failure.