Search Results - "Ulfendahl, H R"

Injection of low and iso-osmolar contrast medium decreases oxygen tension in the renal medulla by Liss, Per, Nygren, Anders, Erikson, Uno, Ulfendahl, Hans R.

“…Injection of low and iso-osmolar contrast medium decreases oxygen tension in the renal medulla. The oxygen tension (PO2) in the renal cortex and outer renal…”
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Effects of contrast media and mannitol on renal medullary blood flow and red cell aggregation in the rat kidney by Liss, Per, Nygren, Anders, Olsson, Ulf, Ulfendahl, Hans R., Erikson, Uno

“…Effects of contrast media and mannitol on renal medullary blood flow and red cell aggregation in the rat kidney. Hemodynamic factors may play a role in the…”
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Intrarenal oxygen tension measured by a modified clark electrode at normal and low blood pressure and after injection of x-ray contrast media by Liss, P, Nygren, A, Revsbech, N P, Ulfendahl, H R

“…The oxygen tension (pO2) in the rat kidney was studied using a Clark microelectrode with a guard cathode behind the sensing cathode. The mean (+/- SEM) outer…”
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Iodine concentrations in the rat kidney measured by X-ray microanalysis. Comparison of concentrations and viscosities in the proximal tubules and renal pelvis after intravenous injections of contrast media by Ueda, J, Nygren, A, Sjöquist, M, Jacobsson, E, Ulfendahl, H R, Araki, Y

“…To measure the iodine concentrations in the proximal tubules and renal pelvis after i.v. injections of contrast media (CM) at 1600 mg I/kg b.w., using a…”
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Effect of intravenous contrast media on proximal and distal tubular hydrostatic pressure in the rat kidney by Ueda, J, Nygren, A, Hansell, P, Ulfendahl, H R

“…The effect of i.v. injection of contrast media (CM, 1,600 mg I/kg b.w.) on proximal and distal tubular hydrostatic pressure (PTHP, DTHP) in the rat was…”
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Effect of a converting-enzyme inhibitor on vasa recta blood flow in rat kidney by Hansell, P, Sjöquist, M, Ulfendahl, H R

“…In young anesthetized Munich-Wistar rats, red cell flux (Qrbc) was measured in the vasa recta of the exposed renal papilla by means of fluorescently labeled…”
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Effects of intravenous contrast media on cortical and medullary blood flow in the rat kidney by Nygren, A, Ulfendahl, H R, Hansell, P, Erikson, U

“…The effect of slow intravenous infusion of contrast medium (CM) (1600 mg I/kg body weight) on cortical blood flow (BF) and medullary BF in rat kidneys was…”
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Superficial and juxtamedullary nephron function during converting enzyme inhibition by Göransson, A, Sjöquist, M, Ulfendahl, H R

“…The influence of the renin-angiotensin system on whole-kidney and regional single-nephron function was studied in anesthetized Munich-Wistar rats by use of a…”
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Atriopeptins and renal cortical and papillary blood flow by Hansell, P, Ulfendahl, H R

“…Studies were made of the effect of two pure synthetic atrial natriuretic factors (ANF) on renal cortical and papillary blood flow and on the excretion of…”
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Evidence for tubuloglomerular feedback in juxtamedullary nephrons of young rats by Müller-Suur, R, Ulfendahl, H R, Persson, A E

“…To determine whether the filtration rate of juxtamedullary nephrons is regulated by tubuloglomerular feedback (TGF), we developed two micropuncture techniques…”
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Effects of atrial natriuretic peptide (ANP) during converting enzyme inhibition by Hansell, P, Ulfendahl, H R

“…Studies were performed on anesthetized adult Münich-Wistar rats to investigate the role of angiotensin II in the natriuretic response to synthetic atrial…”
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The calcium entry blocker verapamil increases red cell flux in the vasa recta of the exposed renal papilla by Hansell, P, Sjöquist, M, Ulfendahl, H R

“…To investigate the vasoreactivity of the vessels of the juxtamedullary vasculature, measurements were made of the red blood cell flux (Qrbc) in the vasa recta…”
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The dopamine receptor antagonist haloperidol blocks natriuretic but not hypotensive effects of the atrial natriuretic factor by Hansell, P, Fasching, A, Sjöquist, M, Andén, N E, Ulfendahl, H R

“…Studies were performed on anesthetized male Münich-Wistar rats to investigate the influence of the dopamine (DA) receptor antagonist haloperidol on the…”
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The influence of Atriopeptins I and II on the relationship between glomerular filtration and natriuresis by Hansell, P, Ulfendahl, H R

“…The effects of two pure synthetic atrial natriuretic factors, Atriopeptin (AP) I and AP II, on the whole kidney glomerular filtration rate (GFR), sodium and…”
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Renal effects of atriopeptin II and dopamine receptor blockade in acutely volume-expanded rats by Hansell, P, Michaelsson, K, Ulfendahl, H R

“…Studies were made of the effects of continuous intravenous infusion of a synthetic atrial natriuretic factor (ANF) or, pre-treatment with the dopamine receptor…”
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Increase in proximal tubular fluid reabsorption by renal nerve stimulation. A split oil droplet study by Göransson, A, Ulfendahl, H R

“…The influence of renal sympathetic nerve stimulation on fluid reabsorption in the proximal tubules was studied in anaesthetized male Sprague-Dawley rats…”
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Atrial natriuretic factor, urinary catechol compounds and electrolyte excretion in rats during normal hydration and isotonic volume expansion. Influence of dopamine receptor blockade by Hansell, P, Ande'n, N E, Grabowska-Ande'n, M, Ulfendahl, H R

“…To investigate the influence of acute isotonic volume expansion (VE) on the plasma concentration of atrial natriuretic factor (ANF), the excretion of catechol…”
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CNS-induced natriuresis is not mediated by the atrial natriuretic factor by Hansell, P, Göransson, A, Leppäluoto, J, Arjamaa, O, Vakkuri, O, Ulfendahl, H R

“…Studies were performed on anaesthetized Wistar-Kyoto rats to investigate whether the natriuretic response to stimulation of the cerebroventricular system with…”
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Effect of furosemide or mannitol before injection of a non-ionic contrast medium on intrarenal oxygen tension by Liss, P, Nygren, A, Ulfendahl, H R, Erikson, U

“…Oxygen tension (pO2) in rat renal cortex and outer medulla was studied after an intravenous injection of mannitol or furosemide, followed 10 minutes later by…”
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A method for in situ measurement of ionic concentration in picoliter samples of renal tubular fluid by HANSELL, P, SADOWSKI, J, SJOQUIST, M, ULFENDAHL, H. R

“…A method permitting rapid and frequent determination of the total ionic concentration in renal tubular fluid samples, by measuring sample electrical impedance,…”
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