The effect of oil-in-water submicron emulsion (SE) droplet surface charge on absolute bioavailability of a poorly water-soluble drug (griseofulvin, as model drug) after oral administration was studied in conscious rat. Positively, negatively, and neutrally charged SE were designed and characterized (size, polydispersity index, zeta potential, and pH). Three emulsion formulations, whose compositions included 40% oil phase and differed only in the nature of the emulsifying agent, were retained. Only the positively charged SE showed a higher area under the plasma concentration-time curve (AUC(0 ->infinity)) in comparison with the tablet and with the other SE.
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Natl Inst Mat Sci, Ctr Biomat, Tsukuba, Ibaraki 3050044, JapanNatl Inst Mat Sci, Ctr Biomat, Tsukuba, Ibaraki 3050044, Japan
Zhang, Shaoling
Kawakami, Kohsaku
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Natl Inst Mat Sci, Ctr Biomat, Tsukuba, Ibaraki 3050044, Japan
Int Ctr Mat Nanoarchitecton, Tsukuba, Ibaraki 3050044, JapanNatl Inst Mat Sci, Ctr Biomat, Tsukuba, Ibaraki 3050044, Japan
Kawakami, Kohsaku
Yamamoto, Marina
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Setsunan Univ, Fac Pharmaceut Sci, Osaka 5730101, JapanNatl Inst Mat Sci, Ctr Biomat, Tsukuba, Ibaraki 3050044, Japan
Yamamoto, Marina
Masaoka, Yoshie
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Setsunan Univ, Fac Pharmaceut Sci, Osaka 5730101, JapanNatl Inst Mat Sci, Ctr Biomat, Tsukuba, Ibaraki 3050044, Japan
Masaoka, Yoshie
Kataoka, Makoto
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Setsunan Univ, Fac Pharmaceut Sci, Osaka 5730101, JapanNatl Inst Mat Sci, Ctr Biomat, Tsukuba, Ibaraki 3050044, Japan
Kataoka, Makoto
Yamashita, Shinji
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Setsunan Univ, Fac Pharmaceut Sci, Osaka 5730101, JapanNatl Inst Mat Sci, Ctr Biomat, Tsukuba, Ibaraki 3050044, Japan
Yamashita, Shinji
Sakuma, Shinji
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Setsunan Univ, Fac Pharmaceut Sci, Osaka 5730101, JapanNatl Inst Mat Sci, Ctr Biomat, Tsukuba, Ibaraki 3050044, Japan
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Hokkaido Univ, Grad Sch Engn, Div Mol Chem, Sapporo, Hokkaido 0608628, JapanHokkaido Univ, Grad Sch Engn, Div Mol Chem, Sapporo, Hokkaido 0608628, Japan
Ichikawa, T
Dohda, T
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Hokkaido Univ, Grad Sch Engn, Div Mol Chem, Sapporo, Hokkaido 0608628, JapanHokkaido Univ, Grad Sch Engn, Div Mol Chem, Sapporo, Hokkaido 0608628, Japan
Dohda, T
Nakajima, Y
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Hokkaido Univ, Grad Sch Engn, Div Mol Chem, Sapporo, Hokkaido 0608628, JapanHokkaido Univ, Grad Sch Engn, Div Mol Chem, Sapporo, Hokkaido 0608628, Japan