Current Understanding of Gut Microbiota in Mood Disorders: An Update of Human Studies

Autor: Ting-Ting Huang, Jian-Bo Lai, Yan-Li Du, Yi Xu, Lie-Min Ruan, Shao-Hua Hu
Jazyk: angličtina
Rok vydání: 2019
Předmět:
Zdroj: Frontiers in Genetics, Vol 10 (2019)
Druh dokumentu: article
ISSN: 1664-8021
DOI: 10.3389/fgene.2019.00098
Popis: Gut microbiota plays an important role in the bidirectional communication between the gut and the central nervous system. Mounting evidence suggests that gut microbiota can influence the brain function via neuroimmune and neuroendocrine pathways as well as the nervous system. Advances in gene sequencing techniques further facilitate investigating the underlying relationship between gut microbiota and psychiatric disorders. In recent years, researchers have preliminarily explored the gut microbiota in patients with mood disorders. The current review aims to summarize the published human studies of gut microbiota in mood disorders. The findings showed that microbial diversity and taxonomic compositions were significantly changed compared with healthy individuals. Most of these findings revealed that short-chain fatty acids-producing bacterial genera were decreased, while pro-inflammatory genera and those involved in lipid metabolism were increased in patients with depressive episodes. Interestingly, the abundance of Actinobacteria, Enterobacteriaceae was increased and Faecalibacterium was decreased consistently in patients with either bipolar disorder or major depressive disorder. Some studies further indicated that specific bacteria were associated with clinical characteristics, inflammatory profiles, metabolic markers, and pharmacological treatment. These studies present preliminary evidence of the important role of gut microbiota in mood disorders, through the brain-gut-microbiota axis, which emerges as a promising target for disease diagnosis and therapeutic interventions in the future.
Databáze: Directory of Open Access Journals