Adverse childhood trauma and reoccurrence of illness impact the gut microbiome, which affects suicidal behaviors and the phenome of major depression: towards enterotypic-phenotypes

Author:

Maes Michael,Vasupanrajit Asara,Jirakran Ketsupar,Klomkliew Pavit,Chanchaem Prangwalai,Tunvirachaisakul Chavit,Plaimas Kitiporn,Suratanee Apichat,Payungporn Sunchai

Abstract

AbstractThe first publication demonstrating that major depressive disorder (MDD) is associated with alterations in the gut microbiota appeared in 2008 (Maes et al., 2008). The purpose of the present study is to delineate a) the microbiome signature of the phenome of depression, including suicidal behaviours and cognitive deficits; the effects of adverse childhood experiences (ACE) and recurrence of illness index (ROI) on the microbiome; and the microbiome signature of lowered high-density lipoprotein cholesterol (HDLc).We determined isometric log-ratio abundances or prevalence of gut microbiome phyla, genera, and species by analyzing stool samples from 37 healthy Thai controls and 32 MDD patients using 16S rDNA sequencing.Six microbiome taxa accounted for 36% of the variance in the depression phenome, namelyHungatellaandFusicatenibacter(positive associations) andButyricicoccus, Clostridium, Parabacteroides merdae, andDesulfovibrio piger(inverse association). This profile (labeled enterotype 1) indicates compositional dysbiosis, is strongly predicted by ACE and ROI, and is linked to suicidal behaviours. A second enterotype was developed that predicted a decrease in HDLc and an increase in the atherogenic index of plasma (Bifidobacterium, P. merdae, andRomboutsia were positively associated, whileProteobacteriaandClostridium sensu strictowere negatively associated). Together, enterotypes 1 and 2 explained 40.4% of the variance in the depression phenome, and enterotype 1 in conjunction with HDLc explained 39.9% of the variance in current suicidal behaviours.In conclusion, the microimmuneoxysome is a potential new drug target for the treatment of severe depression and suicidal behaviours, and possibly for the prevention of future episodes.

Publisher

Cold Spring Harbor Laboratory

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