Results 81 to 90 of about 860,286 (378)
Animal Models and Experimental Medicine, EarlyView.Blood pressure increases immediately when the 2K2C rats (made with 0.3, 0.25, and 0.2 mm U‐shaped clips) regain consciousness from anesthesia. 100% of the rats develop hypertension on the day of 2K2C surgery. Blood pressure continues to rise, resulting in severe hypertension and organ damage to the brain, heart, aorta, and kidneys at 1, 2, 4, and 6 ...
Jia‐Sheng Tian +4 more
wiley +1 more source
Impaired angiotensin II signaling in septic shock
Annals of Intensive CareRecent years have seen a resurgence of interest for the renin–angiotensin–aldosterone system in critically ill patients. Emerging data suggest that this vital homeostatic system, which plays a crucial role in maintaining systemic and renal hemodynamics ...
Adrien Picod +6 more
doaj +1 more source
The renin angiotensin aldosterone system
Pflügers Archiv - European Journal of PhysiologyAbstractIn this review, we will cover (i) the proteolytic cascade of the RAAS, (ii) its regulation by multiple feedback-controlled parameters, and (iii) the major effects of the RAAS. For the effects of the RAAS, we focus on the role of the RAAS in the regulation of volume homeostasis and vascular tone, as major determinants of arterial blood pressure.
Triebel, Hannah, Castrop, Hayo
openaire +3 more sources
Arthritis &Rheumatology, EarlyView.Objective Systemic sclerosis (SSc) is a rare but severe autoimmune disease characterized by immune dysregulation, fibrosis, and vasculopathy. Although previous studies have highlighted the presence of functional autoantibodies targeting the angiotensin II receptor type 1 (AT1) and endothelin‐1 type A receptor (ETAR), leading to autoantibody‐mediated ...
Wieke M. van Oostveen +8 more
wiley +1 more source
Compact integral manifolds of differential systems [PDF]
arXiv, 2010 The boundedness tests for the number of compact integral manifolds of autonomous ordinary differential systems, of autonomous total differential systems, of linear systems of partial differential equations, of Pfaff systems of equations, and of systems of exterior differential equations are proved.
arxiv
Using Structure-Behavior Coalescence Method for Systems Definition 2.0 [PDF]
arXiv, 2021 Systems definition is an artifact created by humans to describe what a system is. A system has been defined, by systems definition 1.0, hopefully to be an integrated whole, embodied in its components, their interrelationships with each other and the environment, and the principles and guidelines governing its design and evolution.
arxiv
Morphisms of Networks of Hybrid Open Systems [PDF]
arXiv, 2019 This thesis (defended 10/07/2019) develops a theory of networks of hybrid open systems and morphisms. It builds upon a framework of networks of continuous-time open systems as product and interconnection. We work out categorical notions for hybrid systems, deterministic hybrid systems, hybrid open systems, networks of hybrid open systems, and morphisms
arxiv
Contraction analysis of time-varying DAE systems via auxiliary ODE systems [PDF]
arXiv, 2023 This paper studies the contraction property of time-varying differential-algebraic equation (DAE) systems by embedding them to higher-dimension ordinary differential equation (ODE) systems. The first result pertains to the equivalence of the contraction of a DAE system and the uniform global exponential stability (UGES) of its variational DAE system ...
arxiv
First integrals of ordinary linear differential systems [PDF]
arXiv, 2012 The spectral method for building first integrals of ordinary linear differential systems is elaborated. Using this method, we obtain bases of first integrals for linear differential systems with constant coefficients, for linear nonautonomous differential systems integrable in closed form (algebraic reducible systems, triangular systems, the Lappo ...
arxiv
Romanian Journal of Oral RehabilitationThe aim of this study was to evaluate the effect of the renin- angiotensin- aldosterone system on blood pressure from a hormonal perspective. Additionally, the correlation between cardiovascular pathology and the mechanisms of this system was examined.
Liviu Stafie +7 more
doaj +1 more source