99Mtc-Mdp As an Imaging Tool to Evaluate the in Vivo Biodistribution of Solid Lipid Nanoparticles.
Applied Radiation and Isotopes(2018)
摘要
The aim of this study was to establish the in vivo uptake and tissue distribution of 99mTc-MDP-encapsulated Solid Lipid Nanoparticles (SLNs) post administration. Radioactive 99mTc-MDP encapsulated into SLNs was administered to rats to trace their biodistribution through imaging and ex vivo studies. As expected IV injected 99mTc-MDP exhibited predominant visual bone uptake and a high localisation of particles in the kidneys (3.87%ID/g) followed by bone (2.66%ID/g). IV administered 99mTc-MDP encapsulated by SLN showed similar uptake than 99mTc-MDP. Orally administrated 99mTc-MDP showed no uptake in any organs except the GI-tract while orally administered 99mTc-MDP-SLN showed distinct transfer of 99mTc-MDP from the GI tract with measurable levels in the kidneys and bone.
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关键词
Biodistribution,In vivo imaging,SLNs,99mTc-MDP
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