Collecting duct NOS1 knockout mice lack ET-1 mediated inhibition of collecting duct ENaC
نویسندگان
چکیده
منابع مشابه
Altered collecting duct adenylyl cyclase content in collecting duct endothelin-1 knockout mice
BACKGROUND Endothelin-1 (ET-1) inhibition of vasopressin (AVP)-stimulated water reabsorption by the inner medullary collecting duct (IMCD) is associated with reduced cAMP accumulation. To determine the effect of ET-1 deficiency, AVP-stimulated cAMP responsiveness was assessed in IMCD from mice with collecting duct-specific deletion of ET-1 (CD ET-1 KO) and from control animals. METHODS Cyclic...
متن کاملCollecting duct-specific endothelin B receptor knockout increases ENaC activity.
Collecting duct (CD)-derived endothelin-1 (ET-1) acting via endothelin B (ETB) receptors promotes Na(+) excretion. Compromise of ET-1 signaling or ETB receptors in the CD cause sodium retention and increase blood pressure. Activity of the epithelial Na(+) channel (ENaC) is limiting for Na(+) reabsorption in the CD. To test for ETB receptor regulation of ENaC, we combined patch-clamp electrophys...
متن کاملMedullary Collecting Duct Acidification
The medullary collecting duct (MCD) from renal outer medulla possesses significant HCO3 absorptive capacity. In vitro microperfusion studies have shown that HCO3 absorption in this segment is carbonic anhydrase dependent, affected by peritubular and luminal chloride concentrations, is independent of the presence of Na or the presence of Na transport, and is stimulated by mineralocorticoid hormo...
متن کاملRenal Collecting Duct Cells
1 2 August 3, 2012 3 Revised: August 6, 2012 4 5 Quantitative Phosphoproteomics in Nuclei of Vasopressin-Sensitive 6 Renal Collecting Duct Cells 7 8 9 Steven J. Bolger*, Patricia A. Gonzales Hurtado*, Jason D. Hoffert, Fahad Saeed, Trairak 10 Pisitkun, and Mark A. Knepper 11 12 *Co-First Authors 13 14 Epithelial Systems Biology Laboratory, 15 NHLBI, National Institutes of Health, 16 Bethesda, M...
متن کاملAltered expression profile of transporters in the inner medullary collecting duct of aquaporin-1 knockout mice.
Aquaporin-1 is the major protein responsible for transport of water across the epithelia of the proximal tubule and thin descending limbs. Rapid water efflux across the thin descending limb is required for the normal function of the countercurrent multiplier mechanism. Therefore, urinary concentrating capacity is severely impaired in aquaporin-1 knockout (AQP1 -/-) mice. Here, we have investiga...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Life Sciences
سال: 2013
ISSN: 0024-3205
DOI: 10.1016/j.lfs.2013.12.076