Water decoction is the main form of traditional Chinese medicine (TCM) administered in clinics. Polysaccharides are major components of decoction. Recent studies reported that polysaccharides possess multiple pharmacological activities. However, the mechanism by which oral Chinese herbal polysaccharides play vital roles in the body remains uncertain. This review discussed the polysaccharides in Chinese herbal decoctions and their effects, direct and indirect. The direct impact of polysaccharides includes being absorbed into the body immunity regulation through Peyer's patches; electrostatic adsorption, hydrophobic interaction, and glycoprotein receptors-induced antibacterial effects; prebiotic functions; gut microbiota structural regulation; and increasing the relative abundance of beneficial bacteria. The indirect effects of the polysaccharides in Chinese herbal decoctions include phytochemical toxicity reduction and activity enhancement. Finally, their clinical and research significance is summarized and future research directions are discussed.
| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |