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Multiple carriers for dipeptide transport: carrier-mediated transport of glycyl-L-proline in renal BBMV.
TLDR
Measurements in the presence of valinomycin and an outwardly directed K+ gradient strongly suggest that H(+)-stimulated uptake at both concentrations is electrogenic, and competitive inhibition of Gly-Pro transport was demonstrated for the dipeptides Gly-Gly and Gly-Sar.
Regulation of proximal tubule sodium/hydrogen antiporter with chronic volume contraction.
TLDR
Data suggest that there is chronic upregulation of NHE3 in the volume-contracted state in rabbits, and this upregulation may be responsible for the observed increase in plasma renin, aldosterone and urine sodium content.
Dissociation of Na-K-ATPase specific activity and net reabsorption of sodium.
TLDR
A direct effect of glucocorticoids on renal Na-K-ATPase is suggested and the difficulty in assigning a transport role to this enzyme from the correlation of specific activity with rates of net electrolyte transport isistrate.
Nephrotic syndrome and acute renal failure associated with hepatitis A virus infection.
TLDR
This case report is the first English documentation associating HAV infection with immune complex mesangial proliferative glomerulonephritis associated with nephrotic syndrome.
Potassium secretion by colonic mucosal cells after potassium adaptation.
TLDR
It is indicated that increased Na-K-ATPase is associated with both increased PD and increased potassium secretion in the colon and provide additional evidence suggesting that Na- K- ATPase may be important in the control of transepithelial potassium movement.
Activation of proximal tubular Na(+)-H+ exchange by angiotensin II.
TLDR
The data indicate that the Vmax effect is caused by an apparent increase in the number (density) of active Na(+)-H+ carriers present in the luminal membrane, and the possibility that the observed kinetic change involves an exocytic mechanism was tested.
Carrier-mediated transport of pyroglutamyl-histidine in renal brush border membrane vesicles.
TLDR
This study demonstrates the existence of a high-affinity, low-capacity H+ cotransport system for pGlu-His in the proximal tubular luminal plasmalemma, which appears to be specific for pyroglutamyl-containing dipeptides.
Effects of hypertonic peritoneal dialysis solutions on neutrophil superoxide production.
TLDR
The results suggest that hypertonic peritoneal dialysis solutions curtail neutrophil superoxide generation.
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