Expression of urea transporters in potassium-depleted mouse kidney

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Expression of urea transporters in potassium-depleted mouse kidney.

Urea transport in the kidney is mediated by a family of transporter proteins that include the renal urea transporter (UT-A) and the erythrocyte urea transporter (UT-B). The purpose of this study was to determine the location of the urea transporter isoforms in the mouse kidney and to examine the effects of prolonged potassium depletion on the expression and distribution of these transporters by...

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Urea plays an important role in the urinary concentrating capacity. Renal inner medullary (IM) urea transporter expression was examined in rats with bilateral (BUO) or unilateral ureteral obstruction (UUO). BUO (24 h) was associated with markedly increased plasma urea (42.4 +/- 1.0 vs. 5.2 +/- 0.2 mmol/l) and a significant decrease in expression of UT-A1 (28 +/- 8% of sham levels), UT-A3 (45 +/...

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Specialized transporter proteins that are the products of two closely related genes, UT-A (Slc14a2) and UT-B (Slc14a1), modulate the movement of urea across cell membranes. The purpose of this study was to characterize the mouse variants of two major products of the UT-A gene, UT-A1 and UT-A2. Screening a mouse kidney inner medulla cDNA library yielded 4,047- and 2,876-bp cDNAs, the mouse homol...

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ژورنال

عنوان ژورنال: American Journal of Physiology-Renal Physiology

سال: 2003

ISSN: 1931-857X,1522-1466

DOI: 10.1152/ajprenal.00111.2003