Deprecated: Implicit conversion from float 211.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 211.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 211.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 211.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 211.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 211.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 245.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 245.2 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\25052558
.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 J+Cereb+Blood+Flow+Metab
2014 ; 34
(10
): 1637-45
Nephropedia Template TP
Jullienne A
; Roberts JM
; Pop V
; Paul Murphy M
; Head E
; Bix GJ
; Badaut J
J Cereb Blood Flow Metab
2014[Oct]; 34
(10
): 1637-45
PMID25052558
show ga
In our juvenile traumatic brain injury (jTBI) model, emergence of cognitive
dysfunctions was observed up to 6 months after trauma. Here we hypothesize that
early brain injury induces changes in the neurovascular unit (NVU) that would be
associated with amyloid-beta (A?) accumulation. We investigated NVU changes for
up to 6 months in a rat jTBI model, with a focus on the efflux protein
P-glycoprotein (P-gp) and on the basement membrane proteins perlecan and
fibronectin, all known to be involved in A? clearance. Rodent-A? staining is
present and increased after jTBI around cerebral blood microvessels, and the
diameter of those is decreased by 25% and 34% at 2 and 6 months, respectively,
without significant angiogenesis. P-glycoprotein staining in endothelium is
decreased by 22% and parallels an increase of perlecan and fibronectin staining
around cerebral blood vessels. Altogether, these results strongly suggest that
the emergence of long-term behavioral dysfunctions observed in rodent jTBI may be
related to endothelial remodeling at the blood-brain barrier alongside vascular
dysfunction and altered A? trafficking. This study shows that it is important to
consider jTBI as a vascular disorder with long-term consequences on cognitive
functions.