Intestinal microorganisms are closely related to the pathogenesis of depression, but their specific mechanism of action has not been fully explained. Short-chain fatty acids (SCFA) are metabolites produced by the fermentation of plant polysaccharides, such as dietary fiber and resistant starch mediated by gut microorganisms, which are mainly composed of acetic acid, propionic acid, and butyric acid, and play an important role in the microbiota-intestine-brain axis. Recent studies have found that SCFA can not only regulate intestinal energy metabolism, but also improve depression through blood-brain barrier, immune pathway, endocrine pathway and vagus nerve. SCFA is the focus of scientific research nowadays, and there are few reports on SCFA intervention in depression in China. This article reviews the research progress of SCFA on depression, providing new ideas for clinical research.
| 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 |