Results 31 to 40 of about 571,370 (304)

Dose and Time-Dependent Effects of Caffeine on Cardiovascular Changes Induced by Adenosine

open access: yesBrazilian Archives of Biology and Technology, 2023
Adenosine is an important regulator within the cardiovascular system and modulates various processes through four distinct G protein-coupled receptors (A1, A2A, A2B, and A3), causing hypotension and reduced renal blood flow, which contributes to ischemia
Lucas Braga Albino   +3 more
doaj   +1 more source

Computational fluid dynamicaccuracy in mimicking changes in blood hemodynamics in patients with acute type IIIb aortic dissection treated with TEVAR [PDF]

open access: yes, 2018
Background: We aimed to verify the accuracy of the Computational Fluid Dynamics (CFD) algorithm for blood flow reconstruction for type IIIb aortic dissection (TBAD) before and after thoracic endovascular aortic repair (TEVAR).
Domenig, Christoph   +5 more
core   +1 more source

Red cell trapping and postischemic renal blood flow. Differences between the cortex, outer and inner medulla [PDF]

open access: yes, 1991
Red cell trapping and postischemic renal blood flow. Differences between the cortex, outer and inner medulla. The distribution of blood flow in the rat kidney after 60 minutes of renal ischemia was studied by single-fiber laser-Doppler flowmetry.
Berjano, M.   +3 more
core   +3 more sources

Altered renal hemodynamics and impaired myogenic responses in the fawn-hooded rat [PDF]

open access: yes, 1999
The present study examined whether an abnormality in the myogenic response of renal arterioles that impairs autoregulation of renal blood flow (RBF) and glomerular capillary pressure (PGC) contributes to the development of ...
Dokkum, R.P.E. (Richard) van   +4 more
core   +2 more sources

Synchronized renal blood flow dynamics mapped with wavelet analysis of laser speckle flowmetry data. [PDF]

open access: yesPLoS ONE, 2014
Full-field laser speckle microscopy provides real-time imaging of superficial blood flow rate. Here we apply continuous wavelet transform to time series of speckle-estimated blood flow from each pixel of the images to map synchronous patterns in ...
Alexey R Brazhe   +3 more
doaj   +1 more source

Characterization of Systemic and Regional Hemodynamics and Vascular Dysfunction in Mice with Fecal Induced Peritonitis

open access: yesBiomedicines, 2022
Sepsis is associated with circulatory dysfunction contributing to disturbed blood flow and organ injury. Decreased organ perfusion in sepsis is attributed, in part, to the loss of vasoregulatory mechanisms.
Forough Jahandideh   +6 more
doaj   +1 more source

Reduced CD40L expression on ex vivo activated CD4+T-lymphocytes from patients with excellent renal allograft function measured with a rapid whole blood flow cytometry procedure [PDF]

open access: yes, 2004
Background: The CD40-CD40L (CD154) costimulatory pathway plays a critical role in the pathogenesis of kidney allograft rejection. In renal transplant biopsies, CD4+ CD40L+ graft-infiltrating cells were detected during chronic rejection in contrast to ...
Friedrich, N.   +5 more
core   +1 more source

Renal failure in experimental sepsis: role of Endothelin and the Toll-like receptor 4 [PDF]

open access: yes, 2011
Sepsis is the leading cause of renal failure in critically ill patients, but the pathogenesis of septic kidney dysfunction is poorly defined. The current paradigm states that hypoperfusion and excessive renal vasoconstriction results in renal ischemia.
Fenhammar, Johan
core   +1 more source

Faster Blood Flow Rate Does Not Improve Circuit Life in Continuous Renal Replacement Therapy: A Randomized Controlled Trial [PDF]

open access: yes, 2017
Objectives: To determine whether blood flow rate influences circuit life in continuous renal replacement therapy. Design: Prospective randomized controlled trial. Setting: Single center tertiary level ICU.
Aitken, L. M.   +4 more
core   +3 more sources

Evaluation of renal function in dogs using pulsed Doppler ultrasonography

open access: yesOpen Veterinary Journal
Background: In human medicine, efforts have been made to evaluate venous blood flow in the kidneys to diagnose renal disease and estimate renal function.
Takami Ito   +3 more
doaj   +1 more source

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