Insulin Resistance, Obesity, Hypertension, and Renal Sodium Transport

Sodium transport through various nephron segments is quite important in regulating sodium reabsorption and blood pressure. Among several regulators of this process, insulin acts on almost all the nephron segments and is a strong enhancer of sodium reabsorption. Sodium-proton exchanger type 3 (NHE3)...

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Main Authors: Shoko Horita, George Seki, Hideomi Yamada, Masashi Suzuki, Kazuhiko Koike, Toshiro Fujita
Format: Article
Language:English
Published: Wiley 2011-01-01
Series:International Journal of Hypertension
Online Access:http://dx.doi.org/10.4061/2011/391762
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author Shoko Horita
George Seki
Hideomi Yamada
Masashi Suzuki
Kazuhiko Koike
Toshiro Fujita
author_facet Shoko Horita
George Seki
Hideomi Yamada
Masashi Suzuki
Kazuhiko Koike
Toshiro Fujita
author_sort Shoko Horita
collection DOAJ
description Sodium transport through various nephron segments is quite important in regulating sodium reabsorption and blood pressure. Among several regulators of this process, insulin acts on almost all the nephron segments and is a strong enhancer of sodium reabsorption. Sodium-proton exchanger type 3 (NHE3) is a main regulator of sodium reabsorption in the luminal side of proximal tubule. In the basolateral side of the proximal tubule, sodium-bicarbonate cotransporter (NBCe1) mediates sodium and bicarbonate exit from tubular cells. In the distal nephron and the connecting tubule, epithelial sodium channel (ENaC) is of great importance to sodium reabsorption. NHE3, NBCe1, and ENaC are all regulated by insulin. Recently with-no-lysine (WNK) kinases, responsible for familial hypertension, stimulating sodium reabsorption in the distal nephron, have been found to be also regulated by insulin. We will discuss the regulation of renal sodium transport by insulin and its roles in the pathogenesis of hypertension in insulin resistance.
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issn 2090-0392
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series International Journal of Hypertension
spelling doaj-art-3f4c71fcfcf347798c9b370aadb681112025-08-20T02:08:07ZengWileyInternational Journal of Hypertension2090-03922011-01-01201110.4061/2011/391762391762Insulin Resistance, Obesity, Hypertension, and Renal Sodium TransportShoko Horita0George Seki1Hideomi Yamada2Masashi Suzuki3Kazuhiko Koike4Toshiro Fujita5Department of Internal Medicine, Faculty of Medicine, The University of Tokyo 7-3-1 Hongo, Bunkyo, Tokyo 113-8655, JapanDepartment of Internal Medicine, Faculty of Medicine, The University of Tokyo 7-3-1 Hongo, Bunkyo, Tokyo 113-8655, JapanDepartment of Internal Medicine, Faculty of Medicine, The University of Tokyo 7-3-1 Hongo, Bunkyo, Tokyo 113-8655, JapanDepartment of Internal Medicine, Faculty of Medicine, The University of Tokyo 7-3-1 Hongo, Bunkyo, Tokyo 113-8655, JapanDepartment of Internal Medicine, Faculty of Medicine, The University of Tokyo 7-3-1 Hongo, Bunkyo, Tokyo 113-8655, JapanDepartment of Internal Medicine, Faculty of Medicine, The University of Tokyo 7-3-1 Hongo, Bunkyo, Tokyo 113-8655, JapanSodium transport through various nephron segments is quite important in regulating sodium reabsorption and blood pressure. Among several regulators of this process, insulin acts on almost all the nephron segments and is a strong enhancer of sodium reabsorption. Sodium-proton exchanger type 3 (NHE3) is a main regulator of sodium reabsorption in the luminal side of proximal tubule. In the basolateral side of the proximal tubule, sodium-bicarbonate cotransporter (NBCe1) mediates sodium and bicarbonate exit from tubular cells. In the distal nephron and the connecting tubule, epithelial sodium channel (ENaC) is of great importance to sodium reabsorption. NHE3, NBCe1, and ENaC are all regulated by insulin. Recently with-no-lysine (WNK) kinases, responsible for familial hypertension, stimulating sodium reabsorption in the distal nephron, have been found to be also regulated by insulin. We will discuss the regulation of renal sodium transport by insulin and its roles in the pathogenesis of hypertension in insulin resistance.http://dx.doi.org/10.4061/2011/391762
spellingShingle Shoko Horita
George Seki
Hideomi Yamada
Masashi Suzuki
Kazuhiko Koike
Toshiro Fujita
Insulin Resistance, Obesity, Hypertension, and Renal Sodium Transport
International Journal of Hypertension
title Insulin Resistance, Obesity, Hypertension, and Renal Sodium Transport
title_full Insulin Resistance, Obesity, Hypertension, and Renal Sodium Transport
title_fullStr Insulin Resistance, Obesity, Hypertension, and Renal Sodium Transport
title_full_unstemmed Insulin Resistance, Obesity, Hypertension, and Renal Sodium Transport
title_short Insulin Resistance, Obesity, Hypertension, and Renal Sodium Transport
title_sort insulin resistance obesity hypertension and renal sodium transport
url http://dx.doi.org/10.4061/2011/391762
work_keys_str_mv AT shokohorita insulinresistanceobesityhypertensionandrenalsodiumtransport
AT georgeseki insulinresistanceobesityhypertensionandrenalsodiumtransport
AT hideomiyamada insulinresistanceobesityhypertensionandrenalsodiumtransport
AT masashisuzuki insulinresistanceobesityhypertensionandrenalsodiumtransport
AT kazuhikokoike insulinresistanceobesityhypertensionandrenalsodiumtransport
AT toshirofujita insulinresistanceobesityhypertensionandrenalsodiumtransport