NDT Advance Access originally published online on May 2, 2008
Nephrology Dialysis Transplantation 2008 23(7):2138-2141; doi:10.1093/ndt/gfn160
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© The Author [2008]. Published by Oxford University Press on behalf of ERA-EDTA. All rights reserved. For Permissions, please e-mail: journals.permissions@oxfordjournals.org
Dietary sodium: the dark horse amongst cardiovascular and renal risk factors
Department of Internal Medicine, Hôpital Lapeyronie, Montpellier Cedex, France
Correspondence and offprint requests to: Albert Mimran, Department of Internal Medicine, Hôpital Lapeyronie, 34295 Montpellier Cedex 5, France. Tel: +33-4-67-33-84-43; Fax +33-4-67-33-84-53; E-mail: amimran@wanadoo.fr
Keywords: left ventricular hypertrophy; microalbuminuria; sodium intake; hypertension
| The first 150 words of the full text of this article appear below. |
In American and European populations, the estimated median values of salt intake are 7 and 10 g/day in women and men, respectively. Whether these amounts of salt are inocuous or deleterious is a subject of large debate between pro [1–4] and con [5] recommendations of a large-scale reduction of sodium intake. In addition to the well-admitted effect of sodium on blood pressure, several clinical and experimental observations are in favour of non-pressure-related effects of salt that could contribute to its influence on cardiovascular outcome.
| Dietary salt and blood pressure |
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In clinical research and practice, measurement of 24-h urinary sodium excretion is probably the most reliable estimate of sodium intake, with a variation coefficient of
20% [6]. Table salt accounts for
10%, whereas cooking and food salt represent 5 and 85% of total intake, respectively [7]. The use of the sodium-to-creatinine ratio on a single-spot urine sample, which | Non-pressure mediated effects of dietary sodium |
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| Does the effect of dietary sodium on the cardiovascular system translate into an influence on cardiovascular risk in observational studies? |
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| Is sodium reduction associated with reduction in cardiovascular risk in interventional studies? |
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| Putative mechanism (s) involved in the deleterious effect of salt |
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| Conclusion |
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D. A. McCarron Dietary sodium and cardiovascular and renal disease risk factors: dark horse or phantom entry? Nephrol. Dial. Transplant., July 1, 2008; 23(7): 2133 - 2137. [Full Text] [PDF] |
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