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Murer, H; Biber, J (1997). Membrane traffic and control of proximal tubular sodium phosphate (Na/Pi)-cotransport. Wiener Klinische Wochenschrift, 109(12-13):441-444.

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Phosphate (P(i)) is freely filtered at the glomerular capillaries and largely reabsorbed in the proximal tubule by a Na-dependent, secondary active transport mechanism. Two different brush border membrane Na/P(i)-cotransporters have recently been "cloned" (type I and type II). Only the type II transporter undergoes physiological regulation (e.g., diet, acid/base, parathyroid hormone); it is also involved in pathophysiological alterations of renal Pi-handling (e.g., X-linked hypophosphatemia). In recent experiments on rats and on tissue culture cells (Opossum kidney cells, OK cells) id was documented that manoeuvres leading to increased uptake involve membrane insertion (fast changes) and new synthesis of type II transporters (slow changes), whereas decreased Na/Pi-cotransport activity is associated with their specific membrane retrieval (fast changes) and lysosomal degradation (slow changes).


3 citations in Web of Science®
5 citations in Scopus®
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Additional indexing

Item Type:Journal Article, refereed
Communities & Collections:04 Faculty of Medicine > Institute of Physiology
07 Faculty of Science > Institute of Physiology
Dewey Decimal Classification:570 Life sciences; biology
Date:27 June 1997
Deposited On:11 Feb 2008 12:22
Last Modified:05 Apr 2016 12:18
Related URLs:http://www.springer.at/periodicals/article_issue.jsp?articleID=xxxxxxxx1374xxxxxxxx0109&volumeIssueID=xxxxxxxx1368xxxxxxxx0108&periodicalID=0043-5325&supplement=null
PubMed ID:9261984

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