tubular reabsorption


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reabsorption

The flow of glomerular filtrate from the proximal tubule of the nephron into the peritubular capillaries, which allows the selective passage of certain substances (glucose, proteins, sodium) back into the circulation.

tubular reabsorption

The recovery of needed substances from the contents of the tubule of the nephron into the peritubular capillaries.

tubular

1. pertaining to renal tubules.
2. pertaining to fallopian tube.

tubular backleak
leakage of tubular fluid into the interstitium of the kidney is one of the factors in the pathogenesis of acute renal failure.
tubular maxima
the concentrations of solutes at which the renal tubules are working at full capacity and further increases in concentration will not increase the function. Called also Tm.
tubular necrosis
acute necrosis of the tubular epithelium caused usually by ischemia or exposure to a nephrotoxin; in most cases the patient succumbs to uremia in a few days. See also nephrosis.
tubular proteinuria
failure of the tubules to resorb small molecule proteins excreted by the glomerulus.
tubular reabsorption
reabsorption of solutes from the glomerular filtrate by the tubules, the conservation of protein, glucose and bicarbonate, and the conservation of the water that accompanies them.
tubular transport
refers to all processes which occur with renal tubular fluid during its transport from glomerular space to renal pelvis.
tubular transport maximum
when the tubular transport maximum for a renal tubular solute is exceeded the solute appears in the urine.
References in periodicals archive ?
Conclusions: It was thought that it was not appropriate to use tubular reabsorption of phosphorus alone in the diagnosis of osteopenia of prematurity.
Pharmacokinetics of propionyl-L-carnitine in humans: evidence for saturable tubular reabsorption.
Renal excretion of PAH is the result of glomerular filtration and tubular secretion, although there is a small amount of tubular reabsorption.
Tubular reabsorption is usually developed at birth, but further maturation is completed at 3 years of age.
of corn silk extract--the dose that elicited diuresis and kaliuresis on Protocol 1--was then studied in Protocol 2 on glomerular filtration, proximal tubular reabsorption, and [Na.
Serum levels, although followed as a useful prognostic marker reflecting tumor burden,[2] may not necessarily parallel urinary levels given that serum concentrations ultimately result from interactions among rates of synthesis, glomerular filtration, and proximal tubular reabsorption.
3,8] Protein loss from the kidney may be caused by changes in glomerular capillary permeability, pore size and charge of basement membrane, tubular reabsorption, or catabolism.
Decreased renal filtration and increased tubular reabsorption may result in hypocalciuria.
Hypokalemia probably results from increased kaliuresis due to renal tubular leakage, decreased proximal tubular reabsorption in the face of acidosis and hypocapnia, and aldosterone stimulation.
Later it was found in both workers and experimental animals exposed to cadmium that the proteinuria is a mixed type, with increased excretion of both high--and low--molecular weight proteins, indicative of both glomerular protein loss and decreased tubular reabsorption (10).
The members of the lipocalin family are low-molecular-weight proteins that normally undergo glomerular filtration and tubular reabsorption and could accumulate in plasma during alterations of renal function (18).