Comparative study of behavior of inhaled samarium and cerium in mice |
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| Authors: | Atsuko SHINOHARA Takehisa MATSUKAWA Momoko CHIBA Toshio KUMASAKA Jun KOBAYASHI Kenji TAKAMORI Shozo ICHINOSE Kazuhito YOKOYAMA |
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| Affiliation: | Res.Institute for Cultural Studies,Seisen Univ.;Faculty of Medicine,Juntendo Univ.;Inter.Univ.of Health and Welfare Graduate School;Dept.Pathology,Japanese Red Cross Medical Center;Inst.for Envirn.and Gender Specific Med.,Juntendo Univ. |
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| Abstract: | Distribution of Sm and Ce in mice was investigated after inhalation exposure to their oxide particles of 5 μm diameter and 15 mg/m3.Sm and Ce were mainly distributed in lung,their concentrations decreased with passing time,and their concentrations in lung were correlated with exposure periods.Concentrations of Ce were lower than that of Sm in each point.Sm was also distributed in the other organs and bone but Ce was scarcely detected.These results suggest that the behaviors of Sm and Ce inhaled were different,although their chemical properties are similar. |
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| Keywords: | samarium cerium inhalation mice lung rare earths |
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