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Relation of Dietary Sodium Intake With Subclinical Markers of Cardiovascular Disease (from MESA).

ABSTRACT: The associations between dietary sodium intake and markers of subclinical cardiovascular disease (CVD), such as high-sensitivity cardiac troponin T (hs-cTnT) and amino terminal pro b-type natriuretic peptide (NT-proBNP), may provide mechanistic insight into the relation between dietary sodium and cardiovascular events. We studied 6,131 participants of the Multi-Ethnic Study of Atherosclerosis, who were free of clinical CVD at baseline. Food frequency questionnaires were used to assess estimated sodium intake (ESI) at baseline. We tested the associations between 5 quintiles of ESI (quintile 1: 0.2 to 1.3 grams/day, quintile 2: 1.3 to 1.8 grams/day, quintile 3: 1.8 to 2.4 grams/day, quintile 4: 2.4 to 3.2 grams/day, and quintile 5: 3.2 to 9.9 grams/day) with cross-sectional and 5-year longitudinal change in hs-cTnT and NT-proBNP concentrations. Restricted cubic spline plots were utilized to explore the shape of the associations between ESI and biomarker outcomes. A cross-sectional association between baseline sodium intake and hs-cTnT (but not NT-proBNP) was observed, driven predominantly by a strong positive relation at an intake range of 0.2 to 2.4 g/day. Conversely, a longitudinal association between baseline sodium intake and NT-proBNP (but not hs-cTnT) was observed, driven predominantly by a strong positive relation at intake levels ?2.4 g/day. In conclusion, temporal shifts in the association between increased ESI and markers of subclinical CVD, hs-cTnT in the short term and NT-proBNP in the longer term, point to the complex pathobiology of the association between sodium intake and CVD. There was also no consistent evidence supporting a J-curve (i.e., excess biomarker values at very low ESI).

SUBMITTER: Kapoor K

PROVIDER: S-EPMC6689326 | biostudies-literature | 2019 Aug

REPOSITORIES: biostudies-literature

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Relation of Dietary Sodium Intake With Subclinical Markers of Cardiovascular Disease (from MESA).

Kapoor Karan K Fashanu Oluwaseun O Post Wendy S WS Lutsey Pamela L PL Michos Erin D ED deFilippi Christopher R CR McEvoy J William JW

The American journal of cardiology 20190529 4

The associations between dietary sodium intake and markers of subclinical cardiovascular disease (CVD), such as high-sensitivity cardiac troponin T (hs-cTnT) and amino terminal pro b-type natriuretic peptide (NT-proBNP), may provide mechanistic insight into the relation between dietary sodium and cardiovascular events. We studied 6,131 participants of the Multi-Ethnic Study of Atherosclerosis, who were free of clinical CVD at baseline. Food frequency questionnaires were used to assess estimated ...[more]

PMID: 31300201

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Project description:Sodium intake influences blood pressure and proteinuria, yet the impact on long-term outcomes is uncertain in chronic kidney disease (CKD). Accurate assessment is essential for clinical and public policy recommendations, but few large-scale studies use 24-h urine collections. Recent studies that used spot urine sodium and associated estimating equations suggest that they may provide a suitable alternative, but their accuracy in patients with CKD is unknown.We compared the accuracy of 4 equations [the Nerbass, INTERSALT (International Cooperative Study on Salt, Other Factors, and Blood Pressure), Tanaka, and Kawasaki equations] that use spot urine sodium to estimate 24-h sodium excretion in patients with moderate to advanced CKD.We evaluated the accuracy of spot urine sodium to predict mean 24-h urine sodium excretion over 9 mo in 129 participants with stage 3-4 CKD. Spot morning urine sodium was used in 4 estimating equations. Bias, precision, and accuracy were assessed and compared across each equation.The mean age of the participants was 67 y, 52% were female, and the mean estimated glomerular filtration rate was 31 ± 9 mL · min(-1) · 1.73 m(-2) The mean ± SD number of 24-h urine collections was 3.5 ± 0.8/participant, and the mean 24-h sodium excretion was 168.2 ± 67.5 mmol/d. Although the Tanaka equation demonstrated the least bias (mean: -8.2 mmol/d), all 4 equations had poor precision and accuracy. The INTERSALT equation demonstrated the highest accuracy but derived an estimate only within 30% of mean measured sodium excretion in only 57% of observations. Bland-Altman plots revealed systematic bias with the Nerbass, INTERSALT, and Tanaka equations, underestimating sodium excretion when intake was high.These findings do not support the use of spot urine specimens to estimate dietary sodium intake in patients with CKD and research studies enriched with patients with CKD. The parent data for this study come from a clinical trial that was registered at clinicaltrials.gov as NCT00785629.

Project description:BackgroundThe potential cardiovascular impact of dietary cholesterol intake has been actively debated for decades.ObjectivesWe aimed to evaluate associations of dietary cholesterol and egg intakes with incident cardiovascular disease (CVD) and all-cause and cause-specific mortality.MethodsWe included 96,831 US postmenopausal women aged 50-79 y without known CVD or cancer during baseline enrollment (1993-1998) of the Women's Health Initiative. Dietary information was collected using a validated FFQ. Incident CVD [i.e., ischemic heart disease (IHD) and stroke] and all-cause and cause-specific mortality were ascertained and adjudicated through February 2018.ResultsA total of 9808 incident CVD cases and 19,508 all-cause deaths occurred during a median follow-up of 17.8 y and 18.9 y, respectively. After multivariable adjustment for traditional risk factors and key dietary nutrients including dietary saturated fat, there were modest associations of dietary cholesterol intake with incident CVD (HRQ5versusQ1: 1.12; 95% CI: 1.03, 1.21; P-trend < 0.001) and all-cause mortality (HRQ5versusQ1: 1.09; 95% CI: 1.02, 1.15; P-trend < 0.001). Significant positive associations were also observed between dietary cholesterol and incident IHD (P-trend = 0.007), incident ischemic stroke (P-trend = 0.002), and CVD mortality (P-trend = 0.002), whereas there was an inverse association for incident hemorrhagic stroke (P-trend = 0.037) and no association for mortality from cancer, Alzheimer disease/dementia, respiratory diseases, or other causes (P-trend > 0.05). Higher egg consumption was also associated with modestly higher risk of incident CVD (P-trend = 0.004) and all-cause mortality (P-trend < 0.001), with HRs of 1.14 (95% CI: 1.04, 1.25) and 1.14 (95% CI: 1.07, 1.22), respectively, when comparing ≥1 egg/d with <1 egg/wk.ConclusionsBoth higher dietary cholesterol intake and higher egg consumption appeared to be associated with modestly elevated risk of incident CVD and all-cause mortality in US postmenopausal women.

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Relation of Dietary Sodium Intake With Subclinical Markers of Cardiovascular Disease (from MESA).

Publications

Relation of Dietary Sodium Intake With Subclinical Markers of Cardiovascular Disease (from MESA).

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