Results 331 to 340 of about 2,205,306 (373)

Pharmacology of the renal circulation

The American Journal of Medicine, 1977
The circulatory response of the kidney to drugs is conditioned by a variety of factors, such as basal vascular tone, dietary sodium and structural changes in the renal vasculature which accompany aging and disease. In addition, any drug which affects systemic arterial pressure will activate renal autoregulatory processes, which are superimposed upon ...
openaire   +3 more sources

Control of renal circulation in the fetus

American Journal of Obstetrics and Gynecology, 1972
Abstract The effect of aortic chemoreceptor stimulation on renal circulation was studied in mature fetal lambs. A cesarean section was performed with the use of chloralose anesthesia, and the fetus was delivered with the umbilical circulation intact.
B.W. Thomas, B.W. Thomas, J.E. Milligan, J.E. Milligan, J.T. Dunne, J.T. Dunne   +5 more
openaire   +3 more sources

The Anatomy of the Renal Circulation

1980
There is no organ with a blood vascular system more complex than that of the mammalian kidney. To draw an analogy with electrical circuits, the renal vasculature represents an intricate system of constantly varying resistances, arranged in series and parallel, which control the flow of energy required for the many homeostatic roles the kidney must play.
Robert H. Heptinstall, K. Solez
openaire   +2 more sources

Renal circulation during hypotension

The American Journal of Surgery, 1973
Abstract The partial pressures of canine aortic and renal parenchymal oxygen and carbon dioxide were measured spectrometrically in vivo. Renal parenchymal hypoxia and hypercapnia, disproportionate to aortic controls, were found to occur in systemic hypotension and to persist after a return of normotension.
Randolph H. Guthrie, Robert L. Cucin
openaire   +3 more sources

RENAL CIRCULATION

The Lancet, 1947
A.E Barclay, J Trueta
  +10 more sources

Aging and the renal circulation

2000
In the course of aging, structural alterations occur in the vasculature, ECM, and tubules of the kidney. Renal perfusion declines, due to both structural changes and vasoconstriction, and leads to reductions in GFR. Vasoconstriction develops as a result of increased renal nerve activity and possibly Ang II, and decreases in the vasodilatory ...
Chris Baylis, Ziv Greenfeld
openaire   +2 more sources

Renal collateral circulation in renal hypertension

The American Journal of Medicine, 1966
Abstract The findings in two patients with renal collateral circulation and renal hypertension suggest that collateral circulation does not prevent or modify renal hypertension.
L. Kolsaker, J. Ofstad
openaire   +2 more sources

The renal circulation in pregnancy

2000
Abstract The increased RBF that occurs in pregnancy is due to equivalent relaxation of afferent and efferent arterioles so that GPF is increased. Intracapillary glomerular hydrostatic pressure (Pgc) and the ultrafiltration coefficient (Kf) are unchanged. The increase in GPF is responsible for the increase in GFR.
openaire   +2 more sources

Fetal renal circulation

2000
This chapter details the development of the renal vasculature, the RAS, and the neural supply to the kidney. The sensitivity of the developing kidney to disruption of the activity of the fetal RAS is described. The fetal kidney has a high RVR and a low RBF and GFR.
openaire   +2 more sources

Present Concepts of the Renal Circulation

Archives of Internal Medicine, 1959
Thirty years ago physiologists' ideas about blood circulation in the kidney were based on what was known of its structure. The branching arterial system supplied the glomerular capillaries, which recombined to form efferent arterioles which fed a second capillary system around the tubules.
openaire   +3 more sources