Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 425319
Title Sodium intake and blood pressure in renal transplant recipients
Author(s) Berg, E. van den; Geleijnse, J.M.; Brink, E.J.; Baak, M.A. van; Homan van der Heide, J.J. van der; Gans, R.O.B.; Navis, G.; Bakker, S.J.L.
Source Nephrology Dialysis Transplantation 27 (2012)8. - ISSN 0931-0509 - p. 3352 - 3359.
Department(s) Chair Nutrition and Disease
Publication type Refereed Article in a scientific journal
Publication year 2012
Keyword(s) chronic kidney-disease - converting enzyme-inhibition - urinary albumin excretion - dietary salt intake - cardiovascular-disease - united-states - obesity hypertension - ace-inhibition - restriction - population
Abstract Background - Hypertension is common among renal transplant recipients (RTR) and a risk factor for graft failure and mortality. Sodium intake is a well-established determinant of blood pressure (BP) in the general population. However, data in RTR are limited. International guidelines recommend a maximum daily sodium intake of 70 mmol. We investigated sodium intake in RTR as compared to healthy controls and its association with BP. Methods - We included 660 RTR (age 53 ± 13 years, 58% male) and 201 healthy controls (age 54 ± 11 years, 46% male). Sodium intake was assessed from 24-h urine collections. The morning after completion of urine collection, BP was measured according to a strict protocol. Results. Urinary sodium excretion was 156 ± 62 mmol/24 h in RTR and 195 ± 75 in controls (difference: P <0.001), and 95% of RTR had a urinary sodium excretion >70 mmol/24 h. Systolic BP (SBP) and diastolic BP (DBP) were 136 ± 18 and 82 ± 11 mmHg, respectively. Sodium intake was positively associated with SBP (ß = 0.042 mmHg/mmol/24 h, P = 0.002) and DBP (ß = 0.023 mmHg/mmol/24 h, P = 0.007), independent of potential confounders. Conclusions - Although RTR had a lower sodium intake than healthy controls, their intake still exceeded current guidelines. Reduction of sodium intake to recommended amounts could reduce SBP by 4–5 mmHg. Better control of sodium intake may help to prevent graft failure and mortality due to hypertension among RTR.
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