结肠输送和受控释放的黄素被封装在植物性细胞外囊泡中,装入水凝珠中
Hang Liu1, Yikun Liu1, Shengfeng Peng2
1State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang 330047, Jiangxi, PR China.
Food research international (Ottawa, Ont.)
|February 19, 2025
概括
香细胞外囊泡 (EVs) 有效封装黄素,提高其生物可访问性. 将这些含有黄素的EV装入水凝珠中,进一步提高了稳定性和受控释放,提高了治疗潜力.
科学领域:
- 生物材料科学 生物材料科学
- 营养药物输送系统 营养药物输送系统
- 基于植物的纳米技术
背景情况:
- 疏水性营养品,如黄素,往往患有不良溶解性和低生物可用性.
- 来自自然来源的细胞外囊泡 (EVs) 提供了作为生物相容载体的潜力,用于增强输送.
- 香汁为植物性电动汽车提供了一个新的来源,具有适合营养药封装的固有特性.
研究的目的:
- 研究香衍生的细胞外囊泡 (EVs) 作为疏水性营养品的新型载体,特别是黄素.
- 通过在香EV中进行封装来提高黄素的生物可访问性和稳定性.
- 开发一种含有黄素的香EVs的水凝珠传递系统,以控制释放和提高治疗疗效.
主要方法:
- 黄素在香汁衍生的EVs中的无形状态中的溶解.
- 载有黄素的电动汽车 (CEV) 的表征和与纯黄素晶体的比较.
- 制造水凝珠,使用藻酸盐和香点封装CEVs.
- 评估水凝珠的特性 (球形,硬度,保持水的容量) 和膨胀行为.
- 在各种条件下 (加热,储存,pH) 评估黄素释放动力学和稳定性.
主要成果:
- 香EVs成功封装了黄素,与晶体黄素相比,显著增加了其生物可访问性.
- 含有CEV的水凝珠表现出改善的物理化学特性和受控的黄素释放.
- 水凝系统证明了黄素对热量,暴露和储存的增强稳定性.
- 在水凝珠中的封装减缓了黄素的释放,显示出性结肠炎治疗的潜力.
结论:
- 香衍生的EV是有效的天然载体,可以携带水性营养品,如黄素.
- CEV的凝珠封装提供了一个强大的系统,用于控制释放和增强稳定性.
- 这种基于植物的输送系统有望改善营养药的功能性能和治疗应用.
相关概念视频
Bioavailability Enhancement: Drug Stability Enhancement and GI Retention
332
Improving a drug's stability in the gastrointestinal (GI) tract is paramount for enhancing its bioavailability and therapeutic effectiveness. Various strategies are employed to protect the drug from the harsh gastric milieu and to ensure its release and absorption at the desired site within the GI tract.Polymer coatings are one such method used to shield drugs from the stomach's acidic environment. By preventing premature drug release, these coatings improve the bioavailability of unstable...
332
Modified-Release Drug Delivery Systems: Stimuli-Activated
177
Stimuli-activated drug delivery systems are designed to release drugs in response to specific physical, chemical, or biological stimuli. These systems often utilize hydrogels—three-dimensional, hydrophilic polymer networks capable of swelling in aqueous environments and retaining significant fluid volumes. Upon exposure to particular stimuli, these hydrogels undergo structural transitions that allow the embedded drug to be released. Due to this adaptive behavior, such systems are also...
177
Modified-Release Drug Delivery Systems: Site-Targeted
164
Site-targeted drug delivery systems enhance therapeutic efficacy while minimizing systemic toxicity and treatment costs. Unlike conventional methods, these systems ensure precise drug delivery, improving bioavailability and reducing side effects. Targeted drug delivery is classified into three levels. First-order targeting directs drugs to the capillary beds of specific organs or tissues. Second-order targets specific cell types, such as tumor cells, using receptor-mediated interactions.
164
Site-Targeted Drug Delivery Systems: Polymeric Carriers
160
Polymeric carriers enhance targeted drug delivery by increasing efficacy while minimizing off-target effects. These carriers comprise a biodegradable polymeric backbone integrated with functional elements that enable targeting, improve physicochemical properties, and regulate drug release.Targeting MechanismsThe targeting ability of polymeric carriers is mediated by a homing device, which is a molecular recognition component designed to selectively bind to specific tissues or cells. Monoclonal...
160
Oral Drug Delivery Systems: Continuous-Release Systems
308
Continuous-release drug delivery systems offer a strategic approach to maintaining therapeutic drug levels over extended periods following oral administration. By modulating the release rate of active pharmaceutical ingredients, these systems minimize fluctuations in plasma concentrations, which enhances clinical efficacy and reduces the need for frequent dosing. Such characteristics make them particularly advantageous in managing chronic diseases where patient adherence and stable drug...
308
Oral Drug Delivery Systems: Delayed-Release Systems
222
Delayed-release drug delivery systems are specialized pharmaceutical formulations designed to postpone the release of active compounds until the drug reaches a specific region of the gastrointestinal (GI) tract, typically the intestine. These systems are essential for drugs that may cause gastric irritation, are unstable in acidic environments, or need to exert therapeutic effects locally in the intestinal or colonic regions.The core feature of delayed-release systems is the use of enteric...
222


