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.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
2009 ; 296
(2
): F317-27
Nephropedia Template TP
gab.com Text
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English Wikipedia
Endothelial injury due to eNOS deficiency accelerates the progression of chronic
renal disease in the mouse
#MMPMID19036847
Nakayama T
; Sato W
; Kosugi T
; Zhang L
; Campbell-Thompson M
; Yoshimura A
; Croker BP
; Johnson RJ
; Nakagawa T
Am J Physiol Renal Physiol
2009[Feb]; 296
(2
): F317-27
PMID19036847
show ga
The vascular endothelium expresses endothelial nitric oxide synthase (eNOS) that
generates nitric oxide (NO) to help maintain vascular integrity due to its
anti-inflammatory, antiproliferative, and antithrombogenic effects.
Pharmacological blockade of NO production has been shown to exacerbate renal
injury in chronic renal disease and induces endothelial cell loss. However,
pharmacological inhibition of NO nonspecifically blocks other types of NOS and
therefore does not define the specific role of eNOS in kidney disease. We
hypothesized that a lack of endothelial eNOS can induce a loss of glomerular and
peritubular capillary endothelium and exacerbate renal injury in progressive
renal disease. We tested out this hypothesis using remnant kidney (RK) in eNOS
knockout (eNOS KO) mice. Systolic blood pressure was significantly higher, and
renal function was worse in RK-eNOS KO mice compared with those in RK-C57BL6
mice. eNOS deficiency resulted in more severe glomerulosclerosis, mesangiolysis,
and tubular damage. Glomerular and tubular macrophage infiltration and collagen
deposition were also greater in RK-eNOS KO mice. Renal injuries in the RK-eNOS KO
mice were accompanied by a greater loss of endothelial cells that was shown to be
due to both a decrease in endothelial cell proliferation and an increase in
apoptosis. A lack of eNOS accelerates both glomerular and tubulointerstitial
injury with a loss of glomerular capillaries and peritubular capillaries.
Impaired endothelial function is likely a direct risk factor for renal disease.
|Animals
[MESH]
|Apoptosis
[MESH]
|Blood Pressure
[MESH]
|Capillaries/pathology
[MESH]
|Cell Proliferation
[MESH]
|Disease Progression
[MESH]
|Endothelium, Vascular/*pathology
[MESH]
|Macrophages/physiology
[MESH]
|Male
[MESH]
|Mice
[MESH]
|Mice, Inbred C57BL
[MESH]
|Mice, Knockout
[MESH]
|Nephrons/*blood supply/pathology
[MESH]
|Nitric Oxide Synthase Type III/*deficiency
[MESH]