12/2/2023 0 Comments Extracellular fluid volumeA report from the whitehall department of environment study. The relationship between both sodium and potassium intake and blood pressure in London civil servants. Central mechanisms of osmosensation and systemic osmoregulation. Journal of the American Society of Nephrology, 28(8), 2311–2321. NFAT5 and SLC4A10 loci associate with plasma osmolality. (Eds.), Seldin and Giebisch’s the kidney. Physiologic principles in the clinical evaluation of electrolyte, water, and acid‐base disorders. Advances in Peritoneal Dialysis, 12, 147–150.īatlle, D. Total clearance and extracellular volume with 125I‐iothalamate in peritoneal dialysis. Physiological Reports published by Wiley Periodicals LLC on behalf of The Physiological Society and the American Physiological Society.Īmici, G. Finally, plasma sodium level is associated with SBP, independent of ECFV and diet.īlood pressure extracellular fluid volume plasma sodium. Our data confirm and extend prior data on individual regulation of plasma sodium and suggest that this is associated with individuality of the regulation of ECFV. In conclusion, plasma sodium concentration is positively associated with ECFV on both LS and HS intake. In the combined data set plasma sodium level was significantly associated with ECFV (B = 0.10, p = 0.02), and systolic blood pressure (SBP, B = 0.73, p = 0.006), independent of ECFV. Individual values of plasma sodium on LS and HS diet were strongly correlated (β = 0.68, p < 0.001), as were values for ECFV (β = 0.54, p < 0.001). A positive univariable association between plasma sodium and ECFV was found during HS (β = 0.24, p = 0.042) and LS (β = 0.23, p = 0.058), respectively. The association of plasma sodium with blood pressure was assessed in the combined data of the different sodium intakes by linear mixed effects models. We analyzed data from 70 men (age 24 ± 7 years) at the end of two 7-day periods on a low-sodium diet (LS, 50 mmol Na/24 h) and a high-sodium diet (HS, 200 mmol Na/24 h), respectively. Second, we studied whether plasma sodium is associated with blood pressure. 1.3B): (1) extravascular, interstitial fluid volume (ISFV), which is the primary source of lymph and constitutes about 20 of BM and (2) intravascular fluid volume, that is, plasma volume (PV), amounting to 4 of BM (Eq. To test this hypothesis, we analyzed the association between plasma sodium and directly measured ECFV (iothalamate distribution volume) in healthy men. Extracellular fluid volume (ECFV) is divided into two parts (see Fig. In the general population we recently reported a consistent association between plasma sodium and volume markers, suggesting that individuals with higher plasma sodium have higher extracellular fluid volume (ECFV).
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