相关实验视频
Updated: Aug 11, 2026

OLIgo Mass Profiling (OLIMP) of Extracellular Polysaccharides
Published on: June 20, 2010
对来自Dendrobium officinale的多糖的肠道代谢和吸收的研究
Zhijing Wu1, Zihao He2, Pengfei Dou3
1Department of Pharmacy, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 430030, Wuhan, China.
丹德罗毕 (Dendrobium officinale) 的多糖化物 (DOP) 代谢主要由肠道中的细菌体 (Bacteroides) 介导. 由此产生的寡糖被肠道吸收,为了解DOP铺平了道路.
科学领域:
- 药理学 药理学 是一个学科.
- 微生物学 微生物学
- 生物化学 生化学
背景情况:
- 丹德罗 officinale 多糖 (DOP) 具有显著的药理潜力.
- 人们对DOP的药理动力学特征还不太了解,这限制了其治疗开发.
- 肠道微生物群在多糖代谢中的作用是一个新兴的研究领域.
研究的目的:
- 为了研究Dendrobium officinale多糖 (DOP) 的体内代谢.
- 确定肠道微生物群,特别是Bacteroides在DOP代谢中的作用.
- 为了阐明DOP代谢物的吸收途径.
主要方法:
- 超基因组测序用于分析肠道微生物群的组成和功能.
- 在DOP的管理和多糖化物利用位点 (PULs) 表达之间进行相关性分析.
- 酶活性测定用于内分泌β-1,4-曼酶.
- 光标签技术用于追踪肠道组织中寡糖类的吸收.
主要成果:
- 服用DOP可以提高参与巴克特罗伊德主导肠道微生物群中碳水化合物代谢的PULs的调节.
- 来自Bacteroides的endo-β-1,4-mannanase的表达与DOP代谢相关.
- 来自DOP的寡糖直接被肠道组织吸收.
- 未被吸收的代谢物被肠道微生物进一步加工成短链脂肪酸.
结论:
- 细菌种在Dendrobium officinale多糖体 (DOP) 的体内代谢中发挥着关键作用.
- 由DOP衍生的寡糖被肠道吸收,有助于其药理作用.
- 这些发现为DOP的药理动力学提供了关键的见解,并为其他多糖类的研究提供了信息.
更多相关视频
13:35Structural Biology and Analytical Chemistry Approaches for Characterizing C-Glycoside Metabolic Enzymes in Human Gut Microbiota
Published on: May 23, 2025
10:03Comparative Study on the Polysaccharide Contents and Antioxidant Activities of Hippophae rhamnoides subsp. sinensis and Hippophae gyantsensis
Published on: August 15, 2025
相关概念视频
Glucose Absorption Into the Small Intestine
Carbohydrate Absorption
After being swallowed, the partially digested carbohydrates mix with gastric secretions in the stomach. However, the acidic environment...
Methods for Studying Drug Absorption: In vitro
The diffusion cell method uses a two-compartment cell, including a donor compartment with the drug solution, which simulates the environment where the drug is applied, and a receptor compartment with a buffer solution, which simulates the environment...
Methods for Studying Drug Absorption: In situ
The Doluisio method involves perfusing a prepared segment of a rat's small intestine with a solution of radiolabeled drug and a non-absorbable marker. This helps to differentiate between absorbed and non-absorbed drug concentrations. The intestinal segment is connected at both ends using tubing and syringes,...
Biosynthesis of Polysaccharides