In-vivo studies on intraperitoneally administrated poly(vinyl alcohol)

Journal of Biomedical Materials Research. Part B, Applied Biomaterials
Yanjiao JiangJörg Kressler

Abstract

The fate of poly(vinyl alcohol) (PVA, 195,000 g/mol) was studied in rabbits and nude mice after intraperitoneal (i.p.) administration. In-vivo fluorescence imaging using nude mice allowed for studies of tetramethylrhodamine labeled PVA distribution in the body and tracking the urinary excretion. The excreted PVA was studied in detail after collecting the urine of rabbits over a time period of 28 days. The PVA was separated from the urine by dialysis and analyzed by FTIR spectroscopy, (1)H-NMR spectroscopy, and size exclusion chromatography (SEC). Even after extensive dialysis, it was found that the excreted PVA showed a characteristic brownish color. The spectroscopic techniques revealed that this color was caused by the urine pigment (a metabolite of bilirubin) that could not be separated completely from the PVA. SEC showed unambiguously that the PVA with the very high molar mass had a glomerular permeability in the kidneys. Simultaneously, histological studies of the kidneys and the liver demonstrated that the tissues did not show any obvious damage.

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Citations

Jun 20, 2012·Journal of Materials Science. Materials in Medicine·Louis C VazquezMalisa Sarntinoranont
Mar 10, 2016·The Journal of Physical Chemistry. B·Bettina E B JensenAlexander N Zelikin
Sep 3, 2011·Journal of Biomedical Materials Research. Part a·Abbas ShafieeYousof Gheisari
Apr 29, 2015·Journal of the Mechanical Behavior of Biomedical Materials·Nishar HameedJohn A M Ramshaw
Feb 19, 2015·Frontiers in Bioengineering and Biotechnology·Marie Francene A CutiongcoEvelyn K F Yim

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