Results 211 to 220 of about 368,090 (264)
Some of the next articles are maybe not open access.
Renal Blood Flow in Experimental Hydronephrosis
Acta Physiologica Scandinavica, 1957Summary.Renal blood flow has been estimated by measuring the venous return from both kidneys simultaneously in acute experiments on rabbits.Control experiments showed no significant difference between the two normal kidneys.From 1 to 17 weeks after ligation of one ureter the blood flow was reduced to about 40 percent on the obstructed side while there ...
H, IDBOHRN, A, MUREN
openaire +2 more sources
Blood Flow to Experimental Renal Tumors
Investigative Radiology, 1986Radiolabeled microsphere techniques were used to measure renal blood flow (RBF) in rabbit kidneys with 14- to 16-day-old experimentally induced renal tumors. VX-2 carcinoma cells (25 microliters) harvested from carrier animal intramuscular tumors were injected supraselectively into an intralobar artery using fluoroscopically guided transcatheter ...
S M, Goldman +4 more
openaire +2 more sources
Methods of renal blood flow measurement
Urological Research, 1996Variations in regional renal blood flow have been implicated in a variety of disease states. Many techniques have been developed in an attempt to accurately assess these changes. The microsphere technique is the most widely used method at the present time.
L S, Young +4 more
openaire +2 more sources
Regional Renal Blood Flow in Ewes
American Journal of Veterinary Research, 1981SUMMARY Regional blood flow to the kidneys was measured in 6 ewes by injecting carbonized microspheres (15 μm ± 5) labeled with 85Sr into the left ventricle. There was no significant (P > 0.25) difference in the mean arterial pressure before and after injection of the microspheres.
V K, Reddy +3 more
openaire +2 more sources
Autoregulation of renal blood flow in the puppy
American Journal of Physiology-Legacy Content, 1975The ability of the immature kidney to autoregulate blood flow was investigated. Renal blood flow was measured by electromagnetic flowmeter. In six puppies, selective blockade of the intrarenal effects of angiotensin II (AII) by [1-sarcosine, 8-alanine]angiotensin II (anti-AII) administered into the renal artery did not change renal blood flow.
P A, Jose +4 more
openaire +2 more sources
Renal Blood Flow in Moderate Hypothermia
Archives of Surgery, 1960Although there is general agreement that renal blood flow is depressed by body cooling, there is some disagreement concerning the extent of this alteration. These discrepancies may be related to the wide variation in the degree of hypothermia induced1,6,7,10,11,15and, more particularly, to the methods for measuring renal blood flow.13Some evidence has ...
M, ONNIS, G, BOUNOUS, H B, SHUMACKER
openaire +2 more sources
1990
The microcirculation of the kidney is unique. Most organs are relatively homogeneously prefused by arteries and veins that are interconnected by a capillary bed that supplies oxygen and nutrients to the tissue. In contrast, the perfusion of the kidney is highly heterogeneous.
openaire +1 more source
The microcirculation of the kidney is unique. Most organs are relatively homogeneously prefused by arteries and veins that are interconnected by a capillary bed that supplies oxygen and nutrients to the tissue. In contrast, the perfusion of the kidney is highly heterogeneous.
openaire +1 more source
Autoregulation of renal blood flow in the rat
Pfl�gers Archiv European Journal of Physiology, 1977Renal blood flow was measured in rats anaesthetized with pentobarbital sodium by employing the PAH clearance method and the 133Xe washout technique. Both methods were in good agreement. In 17 rats a 25% decrement of blood pressure was attained through haemorrhage: RBF measured by PAH clearance declined by 3%, according to 133Xe washout by 2.7%.
J, Heller, V, Horácek
openaire +2 more sources
Mechanism of Autoregulation of Renal Blood Flow
Nature, 1959IT has been noted by Winton1 and has since been confirmed many times2–5, that the renal vascular resistance is not constant but increases with increasing arterial pressure in the range 80–120 mm. mercury mean pressure. The phenomenon does not depend on an intact nerve supply to the kidney but occurs in the denervated, perfused kidney.
openaire +2 more sources
Medical & Biological Engineering & Computing, 1991
Stimulation of the renal sympathetic nerve in young pigs with biphasic pulses of current (3 mA, 800 microseconds per phase, 5, 10 and 50 Hz) produced decreases in arterial and cortical blood flow in the kidney, with the greatest decreases occurring at the highest stimulus frequencies. The decrease in cortical flow lagged that in arterial flow by 1.53-1.
F A, Spelman, P A, Oberg
openaire +2 more sources
Stimulation of the renal sympathetic nerve in young pigs with biphasic pulses of current (3 mA, 800 microseconds per phase, 5, 10 and 50 Hz) produced decreases in arterial and cortical blood flow in the kidney, with the greatest decreases occurring at the highest stimulus frequencies. The decrease in cortical flow lagged that in arterial flow by 1.53-1.
F A, Spelman, P A, Oberg
openaire +2 more sources