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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+Regul+Integr+Comp+Physiol
2014 ; 307
(12
): R1488-92
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Effects of chronic kidney disease on liver transport: quantitative intravital
microscopy of fluorescein transport in the rat liver
#MMPMID25339682
Ryan JC
; Dunn KW
; Decker BS
Am J Physiol Regul Integr Comp Physiol
2014[Dec]; 307
(12
): R1488-92
PMID25339682
show ga
Clinical studies indicate that hepatic drug transport may be altered in chronic
kidney disease (CKD). Uremic solutes associated with CKD have been found to alter
the expression and/or activity of hepatocyte transporters in experimental animals
and in cultured cells. However, given the complexity and adaptability of hepatic
transport, it is not clear whether these changes translate into significant
alterations in hepatic transport in vivo. To directly measure the effect of CKD
on hepatocyte transport in vivo, we conducted quantitative intravital microscopy
of transport of the fluorescent organic anion fluorescein in the livers of rats
following 5/6th nephrectomy, an established model of CKD. Our quantitative
analysis of fluorescein transport showed that the rate of hepatocyte uptake was
reduced by ?20% in 5/6th nephrectomized rats, consistent with previous
observations of Oatp downregulation. However, the overall rate of transport into
bile canaliculi was unaffected, suggesting compensatory changes in Mrp2-mediated
secretion. Our study suggests that uremia resulting from 5/6th nephrectomy does
not significantly impact the overall hepatic clearance of an Oatp substrate.