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- W2022096266 abstract "Local application requires fewer nanoparticles than systemic delivery to achieve effective concentration. In this study, we investigated the potential toxicity and efficacy of bare titanium dioxide (TiO2) nanoparticles by local administration into the eye. Mono-disperse, 20nm-size TiO2 nanoparticles did not affect the viability of retinal constituent cells within certain range of concentrations (~1.30μg/mL). Furthermore, local delivery of TiO2 nanoparticles did not induce any significant toxicity at the level of gene expression and histologic integrity in the retina of C57BL/6 mice. Interestingly, at the low concentration (130ng/mL) without definite toxicity, these nanoparticles suppressed in vitro angiogenesis processes and in vivo retinal neovascularization in oxygen-induced retinopathy mice when they are administered intravitreally. Taken together, our results demonstrate that even TiO2 nanoparticles can be safely utilized for the treatment of retinal diseases at the adequate concentration levels, especially through local administration.In this paper the local application of titanium dioxide is described as a local treatment for retinal diseases associated with neovascularization. While these nanoparticles have known systemic toxicity, this work demonstrates that when applied locally in a mouse model, they can be used without observable toxicity even in their native forms." @default.
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- W2022096266 date "2014-07-01" @default.
- W2022096266 modified "2023-09-26" @default.
- W2022096266 title "Anti-angiogenic effect of bare titanium dioxide nanoparticles on pathologic neovascularization without unbearable toxicity" @default.
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- W2022096266 doi "https://doi.org/10.1016/j.nano.2014.02.007" @default.
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