抑郁症是一种影响全世界2.64亿不同年龄段人群的精神疾病。了解其机制对于制定有效的治疗策略至关重要。科学家最近进行了一项研究，表明肠道细菌群落的不平衡会导致某些代谢物的减少，从而导致类似抑郁的行为。这些发现表明健康的肠道微生物群有助于大脑功能保持正常。

Gut microbiota plays a role in brain function and mood regulation

https://www.sciencedaily.com/releases/2020/12/201211115507.htm

1. Grégoire Chevalier, Eleni Siopi, Laure Guenin-Macé, Maud Pascal, Thomas Laval, Aline Rifflet, Ivo Gomperts Boneca, Caroline Demangel, Benoit Colsch, Alain Pruvost, Emeline Chu-Van, Aurélie Messager, François Leulier, Gabriel Lepousez, Gérard Eberl, Pierre-Marie Lledo. Effect of gut microbiota on depressive-like behaviors in mice is mediated by the endocannabinoid system. Nature Communications, 2020; 11 (1) DOI: 10.1038/s41467-020-19931-2