使用MRI对老年人胃和十二指肠液体体积的量化
Cleo Demeester1, Matthias Van der Veken2, Joachim Brouwers2
1Drug Delivery and Disposition, KU Leuven, Gasthuisberg O&N II, Herestraat 49-Box 921, 3000 Leuven, Belgium; Bayer AG, Research & Development, Pharmaceuticals, Model-Informed Drug Development, Building B106, 51368 Leverkusen, Germany.
International journal of pharmaceutics
|October 15, 2024
概括
老年人的胃液体体积显示出很高的变化,但与年轻人相似. 十二指管液体体积随着年龄的增长略有减少,与肥胖和使用PPI等因素相关.
科学领域:
- 胃肠病学 胃肠病学
- 药理动力学 药理动力学
- 老年医学 老年医学
背景情况:
- 老年人是一个多样化的群体,有不同的健康状况和药物治疗方案.
- 胃肠道液体体积对于药物溶解和吸收至关重要.
- 了解胃和十二指肠体积与年龄相关的变化对于老年人药物治疗至关重要.
研究的目的:
- 在禁食的老年人中研究胃和十二指管液体体积的变化.
- 确定影响这些液体体积的因素,包括年龄,药物和健康状况.
- 在老年人群中提供用于生理学基础药理动力学 (PBPK) 建模的数据.
主要方法:
- 使用磁共振成像 (MRI) 进行胃和十二指管液体体积的回顾性分析.
- 包括265名禁食的老年人.
- 统计分析以评估诸如年龄,药物使用 (如质子抑制剂,阿司匹林) 和病理 (如高血压,囊性胰腺,肥胖) 等共变量的影响.
主要成果:
- 胃液的平均体积为28.9±21.1毫升,具有很高的可变性,但对共变量没有显著的影响. 胃体积与年龄保持不变.
- 十二指管液体的平均体积为16.6±10.0毫升,随着年龄的增长略有但显著下降.
- 十二指体积与囊性胰腺,肥胖,尿剂使用和质子抑制剂 (PPI) 使用有适度的相关性.
结论:
- 老年人的胃液体体积非常可变,但与年轻人相比,并不受常见的共同变量显著影响.
- 十二指管液体体积随着年龄的增长而略有减少,并受到特定的健康因素和药物的影响.
- 这些发现对于优化药物开发和使用PBPK建模预测老年人群中药物暴露至关重要.
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