Title |
Thick ascending limb: the Na+:K+:2Cl− co-transporter, NKCC2, and the calcium-sensing receptor, CaSR
|
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Published in |
Pflügers Archiv - European Journal of Physiology, November 2008
|
DOI | 10.1007/s00424-008-0607-1 |
Pubmed ID | |
Authors |
Gerardo Gamba, Peter A. Friedman |
Abstract |
The thick ascending limb of Henle's loop is a nephron segment that is vital to the formation of dilute and concentrated urine. This ability is accomplished by a consortium of functionally coupled proteins consisting of the apical Na(+):K(+):2Cl(-) co-transporter, the K(+) channel, and basolateral Cl(-) channel that mediate electroneutral salt absorption. In thick ascending limbs, salt absorption is importantly regulated by the calcium-sensing receptor. Genetic or pharmacological disruption impairing the function of any of these proteins results in Bartter syndrome. The thick ascending limb is also an important site of Ca(2+) and Mg(2+) absorption. Calcium-sensing receptor activation inhibits cellular Ca(2+) absorption induced by parathyroid hormone, as well as passive paracellular Ca(2+) transport. The present review discusses these functions and their genetic and molecular regulation. |
X Demographics
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Unknown | 1 | 25% |
Demographic breakdown
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Scientists | 2 | 50% |
Mendeley readers
Geographical breakdown
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Greece | 1 | <1% |
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Student > Ph. D. Student | 17 | 16% |
Researcher | 10 | 9% |
Student > Master | 9 | 8% |
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