Tubular fluid
Characteristics of the Relationship between the Flow Rate of Tubular Fluid and Potassium Transport in the Distal Tubule of the Rat
... of tubular fluid has been suggested as one of several factors which may influence potassium transport in the distal convoluted tubule of the ...distal tubular fluid and potassium transport was ...
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Load dependence of proximal tubular fluid and bicarbonate reabsorption in the remnant kidney of the Munich Wistar rat
... proximal tubular fluid (APRH2O) and bicarbonate reabsorption (APRHCO3) in the remnant kidney of euvolemic Munich-Wistar ...tubule. Tubular hypertrophy could account for at least 20-40% of the ...
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Osmolality of distal tubular fluid in the dog
... In contrast to previous micropuncture observations in rodents, the distal tubular fluid was found to be markedly dilute along the entire length of the distal tubule during both antidiure[r] ...
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The Role of “Leakage” of Tubular Fluid in Anuria Due to Mercury Poisoning
... The role of “leakage” of tubular fluid in anuria produced by mercury poisoning was studied in rats by micropuncture techniques. After an initial brisk diuresis, almost all animals were completely anuric 24 ...
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Direct determination of PCO2 in the rat renal cortex
... The mechanism by which the kidney reabsorbs sodium bicarbonate could be a result of (a) H+ secretion, (b) direct HCO3- reabsorption, or (c) a combination of both processes. Most of the studies which have supported the H+ ...
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The Protein Concentration in the Proximal Tubule of the Dog
... Albumin and gamma globulin in the tubular fluid were of protein concentration in the dog proximal estimated by modifying the agar gel diffusion precipitin tubule with a more sensitive me[r] ...
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Understanding urine output in critically ill patients
... the tubular fluid operates within a few sec- onds but is not ...to tubular dys- function and referred as an “ acute renal success ” in acute renal failure ...of tubular dysfunction-associated ...
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A Micropuncture Study of Kidney Function in the River Lamprey, Lampetra Fluviatilis, Adapted to Fresh Water
... Dilution of tubular fluid began in the ascending limb of the nephron loop and continued in the distal and collecting segments, so that 96% and 97"5% °f filtered sodium and chloride, resp[r] ...
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Axial heterogeneity of intracellular pH in rat proximal convoluted tubule
... In addition, the countercurrent pattern of tubular fluid and capillary blood flows would also help to maintain luminal Pco2 differences between early and late proximal convolutions by al[r] ...
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Evidence for a parathyroid hormone independent calcium modulation of phosphate transport along the nephron
... The 'P tubular fluid over plasma ratio, TF/P'P, and the fractional delivery of phosphate to late proximal tubule were significantly decreased by calcium and not significantly increased b[r] ...
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The Mechanism of Bicarbonate Reabsorption in the Proximal and Distal Tubules of the Kidney
... The accumulation of excess H2CO3 in distal tubular fluid indicates, first, that distal, as well as proximal, HCO3- reabsorption is mediated by H+ secretion; and second, that in the dista[r] ...
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Renal handling of sodium and water in the hypothyroid rat: Clearance and micropuncture studies
... Fractional proximal reabsorption of sodium as assessed from proximal tubular fluid to plasma ratios of inulin [TF/P]IN was found to be decreased by 28% P < 0.001 in the hypothyroid rats.[r] ...
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Potassium reabsorption in the proximal tubule of the dog nephron
... The mean tubular fluid to plasma potassium concentration ratio was 1.16 in normal hydropenic dogs, 1.12 in hydropenic dogs with reduced glomerular filtration rate produced by renal arter[r] ...
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Effect of Potassium Deficiency on the Reabsorption of Bicarbonate in the Proximal Tubule of the Rat Kidney
... Since it has previously been shown that K+ is reabsorbed 11-13, but not secreted in uring HCO3- concentration in tubular fluid in the proximal tubule, this effect cannot be due to normal[r] ...
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A micropuncture study of renal phosphate transport in rats with chronic renal failure and secondary hyperparathyroidism
... in tubular transport of phosphate which occur in chronic renal failure and secondary ...proximal tubular fluid plasma phosphate ratios are less than ...
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Tubuloglomerular Feedback and Single Nephron Function after Converting Enzyme Inhibition in the Rat
... IAbbreviations used in this paper: ATF, artificial tubular fluid; BP, blood pressure; CEI, converting enzyme inhibitor; FENa, fractional sodium excretion; GFR, glomerular filtration rate[r] ...
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Bioactivity of glomerular ultrafiltrate during heavy proteinuria may contribute to renal tubulo interstitial lesions: evidence for a role for insulin like growth factor I
... reaches tubular cells by means of glomerular ultra- filtration may contribute to the extracellular matrix accumula- tion in chronic nephrotic diseases either directly or indirectly or ...proximal tubular ...
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Effects of Acetazolamide on Proximal Tubule Cl, Na, and HCO3 Transport in Normal and Acidotic Dogs during Distal Blockade
... It has been suggested that the establishment of a tubular fluid to plasma chloride gradient in the late proximal tubule by the reabsorption of bicarbonate and other anions in the early p[r] ...
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Factors Affecting the Control of Body Volume in the Larvae of the Mosquitoes Aedes Aegypti (L ) and Aedes Detritus Edw
... In the normal larva in water balance we have in fact the relationships Rate of tubular fluid > Rate of urine production = Rate of osmotic inflow production and Rate of tubular = Rate of [r] ...
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A micropuncture study of the effect of parathyroid hormone on renal bicarbonate reabsorption
... renal tubular HCO-/3 ...proximal tubular fluid HCO-/3 concentration (TFHCO-/3), a decrease in fluid reabsorption, and a fall in proximal HCO-/3 reabsorption from ...proximal fluid ...
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