Endothelial cells as vascular salt sensors

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Endothelial cells as vascular salt sensors Hans Oberleithner, Kristina Kusche-Vihrog, Hermann Schillers  Kidney International  Volume 77, Issue 6, Pages 490-494 (March 2010) DOI: 10.1038/ki.2009.490 Copyright © 2010 International Society of Nephrology Terms and Conditions

Figure 1 Concept of how the mechanical stiffness of endothelial cells participates in the regulation of blood pressure. Kidney International 2010 77, 490-494DOI: (10.1038/ki.2009.490) Copyright © 2010 International Society of Nephrology Terms and Conditions

Figure 2 Indentation technique using atomic force microscopy. Indentation curve with two different slopes. (modified from Oberleithner et al.15) Kidney International 2010 77, 490-494DOI: (10.1038/ki.2009.490) Copyright © 2010 International Society of Nephrology Terms and Conditions

Figure 3 Relationship between cell stiffness and electrolyte concentrations. Please note that the electrolyte-induced changes in stiffness occur within minutes. Numbers close to the mean values (±s.e.m.) are the respective ion concentrations in the extracellular solution (mmol/l). (modified from Oberleithner et al.9,15) Kidney International 2010 77, 490-494DOI: (10.1038/ki.2009.490) Copyright © 2010 International Society of Nephrology Terms and Conditions

Figure 4 Negative correlation between cell stiffness and nitric oxide (NO) release. NO release was derived from the nitrite concentrations measured in the supernatant culture media. Data were taken from Oberleithner et al.9,15 Kidney International 2010 77, 490-494DOI: (10.1038/ki.2009.490) Copyright © 2010 International Society of Nephrology Terms and Conditions

Figure 5 Hypothesis for how sodium and potassium control the fluidity of the cortical zone (‘cell shell’) in an endothelial cell. Kidney International 2010 77, 490-494DOI: (10.1038/ki.2009.490) Copyright © 2010 International Society of Nephrology Terms and Conditions

Figure 6 Concept of how sodium, potassium, and aldosterone contribute to the regulation of blood vessel tone. Kidney International 2010 77, 490-494DOI: (10.1038/ki.2009.490) Copyright © 2010 International Society of Nephrology Terms and Conditions