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The Intrarenal Renin-Angiotensin System: From Physiology to the Pathobiology of Hypertension and Kidney Disease
In recent years, the focus of interest on the role of the renin-angiotensin system (RAS) in the pathophysiology of hypertension and organ injury has changed to a major emphasis on the role of the… Expand
Urinary Angiotensinogen as a Novel Biomarker of the Intrarenal Renin-Angiotensin System Status in Hypertensive Patients
We reported previously that urinary angiotensinogen (UAGT) levels provide a specific index of the intrarenal renin-angiotensin system (RAS) status in angiotensin II–dependent hypertensive rats. To… Expand
Liver angiotensinogen is the primary source of renal angiotensin II.
- T. Matsusaka, F. Ni-imura, +5 authors I. Ichikawa
- Journal of the American Society of Nephrology…
- 1 July 2012
Angiotensin II content in the kidney is much higher than in the plasma, and it increases more in kidney diseases through an uncertain mechanism. Because the kidney abundantly expresses… Expand
Sustained renal interstitial macrophage infiltration following chronic angiotensin II infusions.
- Y. Ozawa, H. Kobori, Yuki Suzaki, L. G. Navar
- Chemistry, Medicine
- American journal of physiology. Renal physiology
Chronic angiotensin (ANG) II infusions into rats lead to augmented intrarenal levels of ANG II and inflammatory factors, impaired renal function, and progressive hypertension. Residual effects… Expand
Regulation of intrarenal angiotensin II in hypertension.
Intrarenal angiotensin II (Ang II) is regulated by several complex processes involving formation from both systemically delivered and intrarenally formed substrate, as well as receptor-mediated… Expand
Urinary angiotensinogen as a potential biomarker of severity of chronic kidney diseases.
- H. Kobori, Naro Ohashi, +4 authors T. Yamamoto
- Journal of the American Society of Hypertension…
- 1 September 2008
We previously reported that urinary excretion rates of angiotensinogen (AGT) provide a specific index of the activity of the intrarenal renin-angiotensin system in angiotensin II-dependent… Expand
Enhancement of Intrarenal Angiotensinogen in Dahl Salt-Sensitive Rats on High Salt Diet
Abstract—This study was performed to examine whether there is an inappropriate regulation of intrarenal angiotensinogen in Dahl-salt sensitive rats (DS) fed a high salt diet (HS). Dahl salt-resistant… Expand
Enhancement of Collecting Duct Renin in Angiotensin II–Dependent Hypertensive Rats
Distal nephron renin may provide a possible pathway for angiotensin (Ang) I generation from proximally delivered angiotensinogen. To examine the effects of Ang II on distal nephron renin, we compared… Expand
AT1 Receptor Mediated Augmentation of Intrarenal Angiotensinogen in Angiotensin II-Dependent Hypertension
Abstract—Angiotensin (Ang) II-infused hypertensive rats exhibit increases in renal angiotensinogen mRNA and protein, as well as urinary angiotensinogen excretion in association with increased… Expand
Role of Angiotensin II and Reactive Oxygen Species in Cyclosporine A–Dependent Hypertension
Abstract—Treatment with cyclosporine A (CysA), a potent immunosuppressive agent, is associated with systemic and renal vasoconstriction, leading to hypertension. The present study was conducted to… Expand