Chia Nan University of Pharmacy & Science Institutional Repository:Item 310902800/24195
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    標題: PBA-ω-Lys as Sustained Phenylbutyrate-Releasing Prodrug
    作者: Chun-Li Wang(王群力)
    Po-Ren Hsuen(薛博仁)
    Meng-Jie Sun(孫孟傑)
    Yann-Lii Leu (呂彥禮)
    Feng-Shou Chang(張峯碩)
    Shu-Wei Yang(楊書瑋)
    Jang-Feng Lian (連掌鋒)
    Hui-Po Wang (王惠珀)
    日期: 2011
    上傳時間: 2011-06-23 14:56:51 (UTC+8)
    摘要: Lysine was attached to phenylbutyric acid (PBA) to form PBA-α-Lys and PBA-ω-Lys as PBA prodrugs for treating chemotherapy-associated mucositis. Pharmacokinetic studies were conducted in Wistar rats for determining the systemic bioavailability of both prodrugs and the released PBA. The systemic bioavailability of PBA after oral administration of PBA-α-Lys or PBA-ω-Lys was higher than from i.v. administration, indicating that first pass effect is responsible for the transformation from the prodrugs to the parent drug. Lack of stability in the intestine made PBA-α-Lys unsatisfied as an oral prodrug of PBA. Oral administration of PBA-ω-Lys, on the other hand, led to a slow PBA-releasing profile in circulation. Although the AUC0-t of systemic released PBA from oral administration of PBA-ω-Lys was lower than from oral administration of PBA per se, MRTinf was 5 times longer (9.64 ±2.16 vs 1.81 ± 0.28 hr), t1/2 was 4 times longer (6.18 ± 2.09 hr vs 1.50 ± 0.17 hr), and AUMCinf was 2 folds higher (168.7 ± 67.7 hr*hr*μg/mL vs 88.8 ± 12.4 hr*hr*μg/mL). In conclusion, oral administration of PBA-ω-Lysine exhibited a sustained PBA-releasing pharmacokinetic profile in rats. The bioavailability of PBA released in inflammatory tissues and anti-mucositis activity need to be further investigated for the evaluatioron of PBA-ω-Lysine as an effective targetable anti-mucositis agent.
    關聯: 2011年台俄有機、藥物與生物化學交流暨藥物化學研討會，起迄日：2011/04/06~2011/04/05，地點：溪頭台大實驗林
    显示于类别:[藥理學院] 2011年台俄有機、藥物與生物化學交流暨藥物化學研討會

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