Intracellular Signaling and the Cardiac Renin Angiotensin System

2006 ◽  
pp. 1-17 ◽  
Author(s):  
George W. Booz ◽  
Kenneth M. Baker
Keyword(s):  
Intracellular Signaling ◽  
Renin Angiotensin System ◽  
Angiotensin System ◽  
Renin Angiotensin

scholarly journals Involvement of the Intrarenal Renin-Angiotensin System in Experimental Models of Glomerulonephritis

2012 ◽  
Vol 2012 ◽  
pp. 1-6 ◽  
Author(s):  
Maki Urushihara ◽  
Yukiko Kinoshita ◽  
Shuji Kondo ◽  
Shoji Kagami
Keyword(s):  
Blood Pressure ◽  
Intracellular Signaling ◽  
Renin Angiotensin System ◽  
Experimental Models ◽  
At1 Receptor ◽  
Biologically Active ◽  
Ang Ii ◽  
Angiotensin System ◽  
Renin Angiotensin ◽  
Proinflammatory Mediators

The intrarenal renin-angiotensin system (RAS) has several pathophysiologic functions not only in blood pressure regulation but also in the development of glomerulonephritis (GN). Angiotensin II (Ang II) is the biologically active product of the RAS. Locally produced Ang II induces inflammation, renal cell growth, mitogenesis, apoptosis, migration, and differentiation, regulates the gene expression of bioactive substances, and activates multiple intracellular signaling pathways, leading to tissue damage. Activation of the Ang II type 1 (AT1) receptor pathway results in the production of proinflammatory mediators, cell proliferation, and extracellular matrix synthesis, which facilitates glomerular injury. Previous studies have shown that angiotensin-converting enzyme inhibitors and/or AT1 receptor blockers have beneficial effects in experimental GN models and humans with various types of GN, and that these effects are more significant than their suppressive effects on blood pressure. In this paper, we focus on intrarenal RAS activation in the pathophysiology of experimental models of GN.

scholarly journals Mechanisms of brain renin angiotensin system-induced drinking and blood pressure: importance of the subfornical organ

2015 ◽  
Vol 308 (4) ◽  
pp. R238-R249 ◽  
Author(s):  
Jeffrey P. Coble ◽  
Justin L. Grobe ◽  
Alan Kim Johnson ◽  
Curt D. Sigmund
Keyword(s):  
Intracellular Signaling ◽  
Fluid Intake ◽  
Renin Angiotensin System ◽  
Subfornical Organ ◽  
Ang Ii ◽  
Angiotensin System ◽  
Renin Angiotensin ◽  
Mitogen Activated Protein ◽  
Angiotensin Type

It is critical for cells to maintain a homeostatic balance of water and electrolytes because disturbances can disrupt cellular function, which can lead to profound effects on the physiology of an organism. Dehydration can be classified as either intra- or extracellular, and different mechanisms have developed to restore homeostasis in response to each. Whereas the renin-angiotensin system (RAS) is important for restoring homeostasis after dehydration, the pathways mediating the responses to intra- and extracellular dehydration may differ. Thirst responses mediated through the angiotensin type 1 receptor (AT1R) and angiotensin type 2 receptors (AT2R) respond to extracellular dehydration and intracellular dehydration, respectively. Intracellular signaling factors, such as protein kinase C (PKC), reactive oxygen species (ROS), and the mitogen-activated protein (MAP) kinase pathway, mediate the effects of central angiotensin II (ANG II). Experimental evidence also demonstrates the importance of the subfornical organ (SFO) in mediating some of the fluid intake effects of central ANG II. The purpose of this review is to highlight the importance of the SFO in mediating fluid intake responses to dehydration and ANG II.

Role of genetic variability in the renin-angiotensin system in diabetic and nondiabetic renal disease

2001 ◽  
Vol 21 (6) ◽  
pp. 580-592 ◽  
Author(s):  
Arnold Boonstra ◽  
Dick de Zeeuw ◽  
Paul E. de Jong ◽  
Gerjan Navis
Keyword(s):  
Genetic Variability ◽  
Renal Disease ◽  
Renin Angiotensin System ◽  
Angiotensin System ◽  
Renin Angiotensin

Importance of the Renin-Angiotensin-System in human granulosa lutein cells – RAS in granulosa cells

2008 ◽  
Vol 68 (S 01) ◽  
Author(s):  
D Herr ◽  
WC Duncan ◽  
G Hack ◽  
R Konrad ◽  
R Kreienberg ◽  
...  
Keyword(s):  
Granulosa Cells ◽  
Renin Angiotensin System ◽  
Angiotensin System ◽  
Renin Angiotensin
Sign in / Sign up

Export Citation Format

Share Document