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Sodium reabsorption

Failure to demonstrate a hormonal inhibitor of proximal sodium reabsorption

Failure to demonstrate a hormonal inhibitor of proximal sodium reabsorption

... proximal sodium reabsorption could be detected in plasma, and dialysates of plasma, of rats and dogs undergoing saline ...Fractional sodium reabsorption by the proximal tubule (as estimated in ...

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Collecting Duct Sodium Reabsorption in Deoxycorticosterone Treated Rats

Collecting Duct Sodium Reabsorption in Deoxycorticosterone Treated Rats

... increases sodium reabsorption in this nephron segment, yet sodium balance in vivo is ...duct sodium reabsorption in vivo, we compared fractional sodium delivery (FD Na %) out of ...

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Effects of increased sodium delivery on distal tubular sodium reabsorption with and without volume expansion in man

Effects of increased sodium delivery on distal tubular sodium reabsorption with and without volume expansion in man

... distal sodium delivery was increased by the infusion of hypertonic saline during a sustained water ...of sodium reabsorption with ...fractional sodium excretion higher during saline diuresis ...

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Relationship of Sodium Reabsorption and Glomerular Filtration Rate to Renal Glucose Reabsorption

Relationship of Sodium Reabsorption and Glomerular Filtration Rate to Renal Glucose Reabsorption

... glucose reabsorption at any given glomerular filtration rate is much less than during ...Glucose reabsorption divided by glomerular filtration rate varies inversely with fractional sodium ...when ...

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Renal Sodium Potassium Activated Adenosine Triphosphatase and Sodium Reabsorption

Renal Sodium Potassium Activated Adenosine Triphosphatase and Sodium Reabsorption

... in sodium reabsorption was further examined in dogs in which digoxin, a specific inhibitor of the enzyme system, was infused into one renal artery in doses ranging from ...filtered sodium continued ...

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Increased sodium reabsorption in the proximal and distal tubule of caval dogs

Increased sodium reabsorption in the proximal and distal tubule of caval dogs

... renal sodium and water excretion were examined in normal dogs and in dogs with chronic constriction of the thoracic inferior vena cava and ascites (caval ...of sodium to the water clearing segment of the ...

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Effect of acute hypertension on sodium reabsorption by the proximal tubule

Effect of acute hypertension on sodium reabsorption by the proximal tubule

... on sodium reabsorption by the proximal tubule was studied in rats by means of micropuncture ...Proximal sodium reabsorption, measured by two independent methods, was found to be ...

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Increased ureteral back pressure enhances renal tubular sodium reabsorption

Increased ureteral back pressure enhances renal tubular sodium reabsorption

... Moderate increases of ureteral back pressure usually cause decreases of glomerular filtration rate and even greater decreases of sodium excretion. It has been assumed previously that increased ureteral back ...

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Renal Sodium  and Potassium Activated Adenosine Triphosphatase and Sodium Reabsorption in the Hypothyroid Rat

Renal Sodium and Potassium Activated Adenosine Triphosphatase and Sodium Reabsorption in the Hypothyroid Rat

... Tubular sodium reabsorption per gram of kidney was lower in thyroidectomized rats than in controls (186±14 ...in sodium transport (magnesium-dependent adenosine triphosphatase [Mg-ATPase], glucose-6- ...

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Depression of fractional sodium reabsorption by the proximal tubule of the dog without sodium diuresis

Depression of fractional sodium reabsorption by the proximal tubule of the dog without sodium diuresis

... fractional sodium reabsorption by the proximal tubule of the dog was studied by the recollection micropuncture ...fractional reabsorption during saline ...Fractional sodium reabosorption by ...

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The Effect of Saline Infusion on Sodium Reabsorption by the Proximal Tubule of the Dog

The Effect of Saline Infusion on Sodium Reabsorption by the Proximal Tubule of the Dog

... 5 These studies indicate that acute isotonic or hypertonic saline infusion results in depression of fractional salt and water reabsorption in the proximal tubule and that the effect is i[r] ...

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Factors affecting sodium reabsorption by the proximal tubule as determined during blockade of distal sodium reabsorption

Factors affecting sodium reabsorption by the proximal tubule as determined during blockade of distal sodium reabsorption

... Extension of these studies in dogs with caval constriction has indicated that increased arterial pressure in the presence of reduced renal vascular resistance decreases the net tubular r[r] ...

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Effect of renal sympathetic nerve stimulation on proximal water and sodium reabsorption

Effect of renal sympathetic nerve stimulation on proximal water and sodium reabsorption

... The renal responses to sympathetic nerve stimulation were studied in saline-expanded rats. The left kidney was partially denervated by crushing the left greater splanchnic nerve. Then the distal portion of the nerve was ...

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Inhibition of Renal Tubular Sodium Reabsorption by Hypernatremia

Inhibition of Renal Tubular Sodium Reabsorption by Hypernatremia

... In some cases hypernatremic periods were collected with the shunt partially occluded by a clamp, so that clearance measurements could be made with sodium excretion from the experimental [r] ...

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EVIDENCE FOR A DIRECT EFFECT OF SERUM SODIUM CONCENTRATION ON SODIUM REABSORPTION

EVIDENCE FOR A DIRECT EFFECT OF SERUM SODIUM CONCENTRATION ON SODIUM REABSORPTION

... Under such circumstances, the establishment of the same concentration gradient in normal and hyponatremic states would result in a lower concentration of tubular sodium leaving the proxi[r] ...

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On the influence of extracellular fluid volume expansion on bicarbonate reabsorption in the rat

On the influence of extracellular fluid volume expansion on bicarbonate reabsorption in the rat

... Bicarbonate reabsorption is classically regarded as a rate-limited process characterized by saturation ...bicarbonate reabsorption, in common with sodium reabsorption, is characterized by ...

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Direct measurement of papillary collecting duct sodium transport in the rat  Evidence for heterogeneity of nephron function during Ringer loading

Direct measurement of papillary collecting duct sodium transport in the rat Evidence for heterogeneity of nephron function during Ringer loading

... greater than in hydropenia, 11.8 vs. 0.95% of the filtered load (P less than 0.001). Yet, sodium reabsorption was also much greater, 6 vs. 0.8% (P less than 0.001). In 13 paired collections, during Ringer ...

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Salt sensitive hypertension is associated with dysfunctional Cyp4a10
               gene and kidney epithelial sodium channel

Salt sensitive hypertension is associated with dysfunctional Cyp4a10 gene and kidney epithelial sodium channel

... plasma sodium concen­ trations, and sodium reabsorption by the CD ENaC is a rate­limit­ ing step for this physiologically vital function (2, 3, 23, ...and sodium currents except that an ...

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Sodium Secretion and Reabsorption in the Human Eccrine Sweat Gland

Sodium Secretion and Reabsorption in the Human Eccrine Sweat Gland

... Derived values for sodium concentration of secretory fluid, maximal rate of water free sodium reabsorption in the duct, and maximal free water clearance.. PM CS Ss FP MY BB Average SD.[r] ...

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Salt handling and hypertension

Salt handling and hypertension

... of sodium reabsorption in the kidney (Figure ...renal sodium reabsorption increase BP, whereas those that decrease renal sodium reabsorption serve to decrease ...

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