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Cancer Research
在啮齿动物模型中使用微量移液器引导给药作为口服灌胃的替代方法
在啮齿动物模型中使用微量移液器引导给药作为口服灌胃的替代方法
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JoVE Journal Cancer Research
Use of Micropipette-Guided Drug Administration as an Alternative Method to Oral Gavage in Rodent Models

在啮齿动物模型中使用微量移液器引导给药作为口服灌胃的替代方法

Full Text
2,621 Views
02:44 min
July 26, 2024

DOI: 10.3791/66836-v

Angélica Cruz Lebrón1, Emily Blackwell1,2, Pedro Balbuena Almodóvar1, Tasnim Syakirah Faiez1, Luke A. Mummert1, Karen S. Sfanos1,3,4

1Department of Pathology,Johns Hopkins University School of Medicine, 2Department of Molecular and Comparative Pathobiology,Johns Hopkins University School of Medicine, 3Sidney Kimmel Comprehensive Cancer Center, 4Department of Urology,Johns Hopkins University School of Medicine

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Please note that some of the translations on this page are AI generated. Click here for the English version.

在这里,我们将微量移液器引导的给药 (MDA) 描述为口服强饲法的替代方法,它激励研究动物以最小的压力和不适轻松摄入治疗。

我们是一家前列腺癌研究实验室,我们正在研究人类宿主微生物及其代谢物对前列腺癌发生和治疗反应的影响。我们目前正在使用小鼠模型来研究我们认为可能影响前列腺癌治疗反应的特定微生物代谢物。我们需要一种每天向小鼠口服研究化合物的方法。

最常用的方法,口服强饲法,可能会给研究动物带来压力,并可能导致实验偏倚。因此,我们探索微量移液器引导的给药 MDA 作为一种替代方法。我们确定 MDA 是一种降低口服药物给药对研究动物的时间和侵入性的技术。

总体而言,我们证明 MDA 可能为口服灌胃提供了一种压力较小且有效的替代方案。首先,在 15 毫升锥形管中测量加糖炼乳。然后,使用 50 毫升锥形管,将分子生物学级水与加糖炼乳缓慢混合。

接下来,用一只手轻轻握住研究动物脖子的褶皱以约束它。使用单通道移液器和 200 微升吸头,为动物提供 100 微升加糖牛奶溶液。在 DMSO 中与 90% 玉米油混合重构 S-雌马酚。

将 220 微升等分试样 S-雌马酚在玉米油中与 480 微升加糖炼乳-水溶液混合。同样,在不添加 S-equol 的情况下准备车辆。制备 PBS 对照、DMSO 载体和 S-equol 溶液的预混液,以向所有动物提供均匀的溶液。

最后,每天一次向每只小鼠施用 100 微升的相应溶液。血液分析显示,经 eQuol 治疗的小鼠具有可检测到的 equol 循环水平,表明药物递送有效。

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