Why the study?
Does moderate dietary sodium restriction improve the efficacy of RAAS-blockade on cardiovascular and renal outcomes in patients with diabetic nephropathy?
Does moderate dietary sodium restriction improve the efficacy of RAAS-blockade on cardiovascular and renal outcomes in patients with diabetic nephropathy?
Moderate dietary sodium restriction is essential to maximize the cardiovascular and renal protective effects of RAAS-blockade in patients with diabetic nephropathy.
Answers are grounded in this paper and cite their sources.
May support sodium restriction to enhance RAAS-blockade efficacy in diabetic nephropathy; leaves open confirmation by randomized trials.
SUMMARY Diabetic nephropathy is the leading cause of chronic kidney disease worldwide. The expanding endemic of diabetes, the high risk of premature morbidity and mortality and the incapacity of current therapies to halt progression toward renal failure urges additional treatment modalities. We will review current evidence addressing dietary sodium intake as a key determinant of renin–angiotensin–aldosterone system (RAAS)-blockade efficacy, particularly in diabetic nephropathy. High sodium intake is very common in these patients, and blunts the protective effects of RAAS-blockade on cardiovascular and renal outcomes. Moderate dietary sodium restriction restores the protective effects of RAAS-blockade. The data warrant monitoring of sodium intake and practical implementation of sodium restriction as a lifestyle-related intervention, mandatory as an addition to RAAS-blockade in diabetic nephropathy.
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Borst et al. (2015) studied this question.
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