scholarly journals Arterial Stiffness and Central Hemodynamics are Associated with Low Diurnal Urinary Sodium Excretion

2020 ◽  
Vol Volume 13 ◽  
pp. 3289-3299
Author(s):  
Rosaria Del Giorno ◽  
Christos Ceresa ◽  
Sofia Gabutti ◽  
Chiara Troiani ◽  
Luca Gabutti
2020 ◽  
Vol 41 (Supplement_2) ◽  
Author(s):  
Z Zhang ◽  
X Chen

Abstract Objectives To investigate the associations of sodium intake with central hemodynamics and changes in vascular structure and function at high altitude localities. Methods A total of 383 Buddhists were enrolled in four temples with an average elevation of 3,800 meters from December 2018 to January 2019. Estimated 24-hour urinary sodium excretion was measured by the Kawasaki formula using the urinary sodium/creatinine ratio of the second fasting spot urine in the morning. Central hemodynamics, including central systolic blood pressure (CSBP), central diastolic blood pressure (CDBP), central pulse pressure (CPP), central mean arterial pressure (CMAP), augmentation pressure (AP), augmentation index (AI), were evaluated by applanation tonometry using the SphygmoCor analyzer. Vascular structure and function were quantified by carotid intima media thickness (cIMT) and brachial ankle pulse wave velocity (BaPWV), respectively. Pearson correlation and multiple linear regression were used to analyze the associations between 24h urinary sodium with central arterial hemodynamic parameters, cIMT and BaPWV. Results The estimated 24h urinary sodium excretion of the Buddhists in such area was (5.26±1.61)g and the estimated salt intake was (13.36±4.09)g. There was no significant correlation between 24h urinary sodium with CDBP, AP and cIMT (P>0.05). After adjusting for gender, age, CSBP, body mass index (BMI), fasting blood glucose (FBG), estimated glomerular filtration rate (eGFR), triglycerides (TG), high density lipoprotein (HDL) and low density lipoprotein (LDL), the estimated 24h urine sodium was positively correlated with CSBP (β=1.313, P=0.018) and CPP (β=1.311, P<0.001), the estimated 24h urinary sodium was significantly negatively correlated with AIX75 and BaPWV (β=−1.124, P=0.028 and β=−37.530, P<0.001, respectively). The line graph of means across the 24h urinary sodium quartiles and the cubic fitting curve showed that the associations between 24h urinary sodium excretion with AIX75 and BaPWV presented an approximate “J” shape. Conclusions 24h urinary sodium was positively correlated with CSBP and CPP and negatively correlated with AIX75 and BaPWV in the Buddhists in this high altitude area. The associations between 24h urinary sodium with AIX75 and BaPWV resembled a “J” shape. Funding Acknowledgement Type of funding source: None


2017 ◽  
Vol 20 (C) ◽  
pp. 73
Author(s):  
Michelle Cunha ◽  
Ana Rosa Cunha ◽  
Bianca Cristina Marques ◽  
Jenifer D’El-Rei ◽  
Samanta Mattos ◽  
...  

2021 ◽  
Vol 39 (Supplement 1) ◽  
pp. e278
Author(s):  
João Marcos De M. Zanatta ◽  
Fábio Dos S. Ricardi ◽  
Jéssica R.R. Uyemura ◽  
Luciana N. Cosenso-Martin ◽  
Juan C. Yugar-Toledo ◽  
...  

Author(s):  
Gianluigi Ardissino ◽  
Antonio Vergori ◽  
Cesare Vergori ◽  
Laura Martelli ◽  
Valeria Daccò ◽  
...  

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Xiaofu Du ◽  
Le Fang ◽  
Jianwei Xu ◽  
Xiangyu Chen ◽  
Yamin Bai ◽  
...  

AbstractThe direction and magnitude of the association between sodium and potassium excretion and blood pressure (BP) may differ depending on the characteristics of the study participant or the intake assessment method. Our objective was to assess the relationship between BP, hypertension and 24-h urinary sodium and potassium excretion among Chinese adults. A total of 1424 provincially representative Chinese residents aged 18 to 69 years participated in a cross-sectional survey in 2017 that included demographic data, physical measurements and 24-h urine collection. In this study, the average 24-h urinary sodium and potassium excretion and sodium-to-potassium ratio were 3811.4 mg/day, 1449.3 mg/day, and 4.9, respectively. After multivariable adjustment, each 1000 mg difference in 24-h urinary sodium excretion was significantly associated with systolic BP (0.64 mm Hg; 95% confidence interval [CI] 0.05–1.24) and diastolic BP (0.45 mm Hg; 95% CI 0.08–0.81), and each 1000 mg difference in 24-h urinary potassium excretion was inversely associated with systolic BP (− 3.07 mm Hg; 95% CI − 4.57 to − 1.57) and diastolic BP (− 0.94 mm Hg; 95% CI − 1.87 to − 0.02). The sodium-to-potassium ratio was significantly associated with systolic BP (0.78 mm Hg; 95% CI 0.42–1.13) and diastolic BP (0.31 mm Hg; 95% CI 0.10–0.53) per 1-unit increase. These associations were mainly driven by the hypertensive group. Those with a sodium intake above about 4900 mg/24 h or with a potassium intake below about 1000 mg/24 h had a higher risk of hypertension. At higher but not lower levels of 24-h urinary sodium excretion, potassium can better blunt the sodium-BP relationship. The adjusted odds ratios (ORs) of hypertension in the highest quartile compared with the lowest quartile of excretion were 0.54 (95% CI 0.35–0.84) for potassium and 1.71 (95% CI 1.16–2.51) for the sodium-to-potassium ratio, while the corresponding OR for sodium was not significant (OR, 1.28; 95% CI 0.83–1.98). Our results showed that the sodium intake was significantly associated with BP among hypertensive patients and the inverse association between potassium intake and BP was stronger and involved a larger fraction of the population, especially those with a potassium intake below 1000 mg/24 h should probably increase their potassium intake.


2021 ◽  
pp. 1-42
Author(s):  
Yi-Jie Wang ◽  
Kuo-Lioug Chien ◽  
Hsiu-Ching Hsu ◽  
Hung-Ju Lin ◽  
Ta-Chen Su ◽  
...  

Abstract Urinary sodium excretion is a potential risk factor for cardiovascular diseases (CVD). However, the underlying biological mechanisms and effects of salt sensitivity are unclear. The purpose of this study was to characterize the relative contribution of biological factors to the sodium-CVD association. A total of 2112 participants were enrolled in this study. Structured questionnaires and blood and urine samples were obtained. Twenty-four-hour sodium excretion was estimated using a single overnight urine sample. Hypertension, metabolic syndrome, and overweight status were considered to indicate salt sensitivity. Cox proportional hazard models were used to investigate the effects of salt sensitivity on urinary sodium excretion and CVD risk. The traditional mediation approach was used to calculate the proportion of mediation. The mean age (standard deviation) of the 2112 participants was 54.5 (12.2) years, and they were followed up for a mean of 14.1 [8.1] years. Compared with those in the lowest quartile, the highest baseline urinary sodium excretion (>4.2g/24 hours) was associated with a 43% higher CVD risk (hazard ratio, 1.43; 95% confidence interval, 1.02-1.99). Participants with high urinary sodium excretion, hypertension, or metabolic syndrome had a significantly high risk of CVD. The carotid intima-media thickness had the largest mediating effect (accounting for 35% of the sodium-CVD association), followed by systolic blood pressure (33%), left ventricular mass (28%), and diastolic blood pressure (14%). Higher urinary sodium excretion increased the risk of CVD, which was explained largely by carotid media-thickness and systolic blood pressure.


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