Deprecated: Implicit conversion from float 209.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 209.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 209.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 209.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 209.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 209.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 209.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 209.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 209.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 243.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 243.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Warning: imagejpeg(C:\Inetpub\vhosts\kidney.de\httpdocs\phplern\27707708
.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 Am+J+Physiol+Renal+Physiol
2016 ; 311
(5
): F1074-F1083
Nephropedia Template TP
gab.com Text
Twit Text FOAVip
Twit Text #
English Wikipedia
Collecting duct-specific knockout of nitric oxide synthase 3 impairs water
excretion in a sex-dependent manner
#MMPMID27707708
Gao Y
; Stuart D
; Pollock JS
; Takahishi T
; Kohan DE
Am J Physiol Renal Physiol
2016[Nov]; 311
(5
): F1074-F1083
PMID27707708
show ga
Nitric oxide (NO) inhibits collecting duct (CD) Na(+) and water reabsorption.
Mice with CD-specific knockout (KO) of NO synthase 1 (NOS1) have salt-sensitive
hypertension. In contrast, the role of NOS3 in CD salt and water reabsorption is
unknown. Mice with CD NOS3 KO were generated with loxP-flanked exons 9-12
(encodes the calmodulin binding site) of the NOS3 gene and the aquaporin-2
promoter-Cre transgene. There were no differences between control and CD NOS3 KO
mice, irrespective of sex, in food intake, water intake, urine volume, urinary
Na(+) or K(+) excretion, plasma renin concentration, blood pressure, or pulse
during 7 days of normal (0.3%), high (3.17%), or low (0.03%) Na(+) intake. Blood
pressure was similar between genotypes during DOCA-high salt. CD NOS3 KO did not
alter urine volume or urine osmolality after water deprivation. In contrast, CD
NOS3 KO male, but not female, mice had lower urine volume and higher urine
osmolality over the course of 7 days of water loading compared with control mice.
Male, but not female, CD NOS3 KO mice had reduced urinary nitrite+nitrate
excretion compared with controls after 7 days of water loading. Urine AVP and
AVP-stimulated cAMP accumulation in isolated inner medullary CD were similar
between genotypes. Western analysis did not reveal a significant effect of CD
NOS3 KO on renal aquaporin expression. In summary, these data suggest that CD
NOS3 may be involved in the diuretic response to a water load in a sex-specific
manner; the mechanism of this effect remains to be determined.
|Animals
[MESH]
|Blood Pressure/physiology
[MESH]
|Drinking/physiology
[MESH]
|Eating/physiology
[MESH]
|Female
[MESH]
|Kidney Tubules, Collecting/*metabolism
[MESH]
|Kidney/metabolism
[MESH]
|Male
[MESH]
|Mice
[MESH]
|Mice, Knockout
[MESH]
|Nitric Oxide Synthase Type III/*genetics/metabolism
[MESH]