一项关于益生菌缓解抑郁的临床实验发表在了《国际精神病学杂志》(International Journal of Neuropsychopharmacology)上,该实验对样本数量和长期追踪动物改善提出了要求。参考文献:Slykerman RF, Hood F, Wickens K, et al. Effect of Lactobacillus rhamnosus HN001 in Pregnancy on Postpartum Symptoms of Depression and Anxiety: A Randomised Double-blind Placebo-controlled Trial[J]. International Journal of Neuropsychopharmacology, 2017, 20(5): 445-454.