常规胰岛素的加速吸收,该胰岛素通过一种血管化透的微腔室注射给糖尿病老鼠 (Rattus norvegicus) 植入皮下
Leah V Steyn1, Delaney Drew1, Demetri Vlachos1
1Institute for Cellular Transplantation, Department of Surgery, University of Arizona College of Medicine-Tucson, University of Arizona, Tucson, AZ, United States of America.
PloS one
|June 29, 2023
概括
与标准注射相比,可植入的微室显著加快了糖尿病大鼠的胰岛素吸收速度. 这种新的方法改善了胰岛素的递送一致性,可能有利于人工胰腺系统.
科学领域:
- 生物医学工程 生物医学工程
- 内分泌学 在内分泌学.
- 糖尿病研究 糖尿病研究
背景情况:
- 在1型糖尿病中,皮下胰岛素注射显示了高度的显著延迟时间 (≥45分钟).
- 这种延迟和变化使食用葡萄糖控制和一致的胰岛素剂量复杂化.
- 需要新的输送系统来改善胰岛素的药理动力学.
研究的目的:
- 为了评估是否可皮下植入的血管化微室加速胰岛素吸收,与传统的皮下注射相比.
- 评估微室输送对胰岛素度波动的影响.
主要方法:
- 糖尿病大鼠通过皮下注射或通过植入的血管化微室 (植入后28天) 接受胰岛素 (1.5U/kg).
- 测量血胰岛素水平以确定达到度峰值的时间.
- 组织学评估评估了微室内血管化的情况.
主要成果:
- 达到胰岛素度峰值的平均时间从22.7分钟 (皮下) 减少到7.5分钟 (微室).
- 胰岛素度的峰值在路线之间是可比的.
- 胰岛素吸收的个体间变异性在微室输送时减少.
- 组织学证实到21日,微室周围已经成熟的血管化.
结论:
- 可皮下植入的血管化微室显著加速胰岛素的吸收.
- 这种方法减少了胰岛素输送的变化.
- 微室显示在各种系统中胰岛素剂量的临床潜力,包括人工胰腺装置.
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