Differential Expression of Individual UT-A Urea Transporter Isoforms in Rat Kidney
نویسندگان
چکیده
منابع مشابه
Coordinated expression of UT-A and UT-B urea transporters in rat testis.
The blood-seminiferous tubule barrier is responsible for maintaining the unique microenvironment conducive to spermatogenesis. A key feature of the blood-testis barrier is selective permeability to solutes and water transport, conferred by the Sertoli cells of the seminiferous tubules (SMTs). Movement of fluid into the lumen of the seminiferous tubule is crucial to spermatogenesis. By Northern ...
متن کاملRegulated expression of renal and intestinal UT-B urea transporter in response to varying urea load.
Production, recycling, and elimination of urea are important to maintain nitrogen balance. Adaptation to varying loads of urea due to different protein intake or in renal failure may involve changes in urea transport and may possibly affect urea transporters. In this study, we examined the expression of the UT-B urea transporter in rats fed a low-protein diet (LPD), a high-protein diet (HPD), a...
متن کاملUpregulation of urea transporter UT-A2 and water channels AQP2 and AQP3 in mice lacking urea transporter UT-B.
The UT-B urea transporter is the major urea transporter in red blood cells and kidney descending vasa recta. Humans and mice that lack UT-B have a mild urine-concentrating defect. Whether deletion of UT-B altered the expression of other transporter proteins involved in urinary concentration was tested. Fluorescence-based real-time reverse transcription-PCR and Northern blot analysis showed upre...
متن کاملMolecular characterization of a novel UT-A urea transporter isoform (UT-A5) in testis.
Urea movement across plasma membranes is modulated by specialized transporter proteins that are products of two genes, termed UT-A and UT-B. These proteins play key roles in the urinary concentrating mechanism and fluid homeostasis. We have isolated and characterized a 1.4-kb cDNA from testes encoding a new isoform (UT-A5) belonging to the UT-A transporter family. For comparison, we also isolat...
متن کاملRenal phenotype of UT-A urea transporter knockout mice.
The urea transporters UT-A1 and UT-A3 mediate rapid transepithelial urea transport across the inner medullary collecting duct (IMCD). In a previous study, using a new mouse model in which both UT-A1 and UT-A3 were genetically deleted from the IMCD (UT-A1/3(-/-) mice), we investigated the role of these transporters in the function of the renal inner medulla. Here the authors report a new series ...
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ژورنال
عنوان ژورنال: Journal of the American Society of Nephrology
سال: 2000
ISSN: 1046-6673,1533-3450
DOI: 10.1681/asn.v11111980