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MAL protein stabilizes luminal membrane PLC β3 and negatively regulates ENaC in mouse cortical collecting duct cells.
MAL protein stabilizes luminal membrane PLCβ3 and negatively regulates ENaC in mouse cortical collecting duct cells. Am J Physiol Renal Physiol. 2019 Jul 31;: Authors: Tuna KM, Liu BC, Yue Q, Ghazi ZM, Ma HP, Eaton DC, Alli AA Abstract Abnormally high epithelial sodium channel (ENaC) activity in the aldosterone sensitive distal nephron and collecting duct leads to hypertension. Mal is a lipid-raft-associated protein that has been previously shown to regulate NKCC2 (Na-K -2Cl co-transporter) and aquaporin-2 in the kidney, but it is not known whether it regulates renal ENaC. ENaC activity is positively...
Source: Am J Physiol Renal P... - July 30, 2019 Category: Urology & Nephrology Authors: Tuna KM, Liu BC, Yue Q, Ghazi ZM, Ma HP, Eaton DC, Alli AA Tags: Am J Physiol Renal Physiol Source Type: research

Analysis of opossum kidney NaPi-IIc sodium-dependent phosphate transporter to understand Pi handling in human kidney
ConclusionThese findings suggest that NaPi-IIc is important for the expression of NaPi-IIa (NaPi-4) protein in OK cells. Suppression of Npt2c may downregulate Npt2a function in HHRH patients.
Source: Clinical and Experimental Nephrology - October 13, 2018 Category: Urology & Nephrology Source Type: research

Intrarenal ghrelin receptor inhibition ameliorates angiotensin ii-dependent hypertension in rats.
INTRARENAL GHRELIN RECEPTOR INHIBITION AMELIORATES ANGIOTENSIN II-DEPENDENT HYPERTENSION IN RATS. Am J Physiol Renal Physiol. 2018 Jun 20;: Authors: Kemp BA, Howell NL, Padia SH Abstract The intrarenal ghrelin receptor (GR) is localized to collecting duct (CD) cells where it increases αENaC-dependent sodium reabsorption in rodents. We hypothesized that chronic GR inhibition with intrarenal GR siRNA lowers blood pressure (BP) in Angiotensin II-dependent hypertension via reductions in αENaC-dependent sodium reabsorption. Uninephrectomized Sprague-Dawley rats (N=121) received subcutaneous osmotic pumps...
Source: Am J Physiol Renal P... - June 20, 2018 Category: Urology & Nephrology Authors: Kemp BA, Howell NL, Padia SH Tags: Am J Physiol Renal Physiol Source Type: research