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Biochemical and hematologic effects of polyvinylpyrrolidone-wrapped fullerene C60 after oral administration.

Die Pharmazie (2013-03-01)
K Yamashita, Y Yoshioka, H Pan, M Taira, T Ogura, T Nagano, M Aoyama, K Nagano, Y Abe, H Kamada, S I Tsunoda, H Aoshima, H Nabeshi, T Yoshikawa, Y Tsutsumi
ABSTRACT

The fullerene C60 is used in consumer products such as cosmetics owing to its antioxidative effects and is being developed for nanomedical applications. However, knowledge regarding the safety of fullerene C60, especially after oral administration, is sparse. Here, we examined the safety of fullerene C60 in mice after 7 d of exposure to orally administered polyvinylpyrrolidone (PVP)-wrapped fullerene C60 (PVP-fullerene C60). Mice treated with PVP-fullerene C60 showed few changes in the plasma levels of various markers of kidney and liver injury and experienced no significant hematologic effects. Furthermore, the histology of the colon of PVP-fullerene C60-treated mice was indistinguishable from that of control mice. These results suggest that PVP-fullerene C60 lacks toxicity after high-dose oral administration and indicate that PVP-fullerene C60 can be considered safe for oral medication. These data provide basic information that likely will facilitate the production of safe and effective forms of fullerene C60.

MATERIALS
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