Gut microbiome: A potential indicator for predicting treatment outcomes in major depressive disorder

The therapeutic outcomes in major depressive disorder (MDD), one of the most common and heterogeneous mental illnesses, are affected by factors that remain unclear and often yield unsatisfactory results. Herein, we characterized the composition and metabolic function of the gut microbiota of patient...

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Main Authors: Zaiquan Dong, Xiaoling Shen, Yanni Hao, Jin Li, Haizhen Xu, Li Yin, Weihong Kuang
Format: Article
Language:English
Published: Frontiers Media S.A. 2022-07-01
Series:Frontiers in Neuroscience
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fnins.2022.813075/full
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author Zaiquan Dong
Zaiquan Dong
Xiaoling Shen
Yanni Hao
Jin Li
Haizhen Xu
Li Yin
Weihong Kuang
Weihong Kuang
author_facet Zaiquan Dong
Zaiquan Dong
Xiaoling Shen
Yanni Hao
Jin Li
Haizhen Xu
Li Yin
Weihong Kuang
Weihong Kuang
author_sort Zaiquan Dong
collection DOAJ
description The therapeutic outcomes in major depressive disorder (MDD), one of the most common and heterogeneous mental illnesses, are affected by factors that remain unclear and often yield unsatisfactory results. Herein, we characterized the composition and metabolic function of the gut microbiota of patients with MDD during antidepressant treatment, based on 16S rRNA sequencing and metabolomics. The microbial signatures at baseline differed significantly between responder and non-responder groups. The gut microbiota of the non-responder group was mainly characterized by increased relative abundances of the phylum Actinobacteria, families Christensenellaceae and Eggerthellaceae, and genera Adlercreutzia and Christensenellaceae R7 group compared to that of the responder group. Additionally, the gut microbiota composition of the responder and non-responder groups differed significantly before and after treatment, especially at the genus level. Moreover, 20 differential metabolites between the responder and non-responder groups were identified that were mainly involved in lipid metabolism (cholestane steroids and steroid esters). Eggerthellaceae and Adlercreutzia displayed strong co-occurrence relationships with certain metabolites, suggesting alternations in the gut microbiome, and associated metabolites may be potential mediators of successful antidepressant treatment. Overall, our study demonstrates that alterations in gut microbiota composition and metabolic function might be relevant to the response to antidepressants, thereby providing insight into mechanisms responsible for their efficacy.
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spelling doaj.art-811442a31ec34d3fa32d92bcf01007e12022-12-22T02:31:10ZengFrontiers Media S.A.Frontiers in Neuroscience1662-453X2022-07-011610.3389/fnins.2022.813075813075Gut microbiome: A potential indicator for predicting treatment outcomes in major depressive disorderZaiquan Dong0Zaiquan Dong1Xiaoling Shen2Yanni Hao3Jin Li4Haizhen Xu5Li Yin6Weihong Kuang7Weihong Kuang8Mental Health Center of West China Hospital, Sichuan University, Chengdu, ChinaDepartment of Psychiatry, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, ChinaMental Health Center of West China Hospital, Sichuan University, Chengdu, ChinaMental Health Center of West China Hospital, Sichuan University, Chengdu, ChinaMental Health Center of West China Hospital, Sichuan University, Chengdu, ChinaMental Health Center of West China Hospital, Sichuan University, Chengdu, ChinaMental Health Center of West China Hospital, Sichuan University, Chengdu, ChinaMental Health Center of West China Hospital, Sichuan University, Chengdu, ChinaDepartment of Psychiatry, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, ChinaThe therapeutic outcomes in major depressive disorder (MDD), one of the most common and heterogeneous mental illnesses, are affected by factors that remain unclear and often yield unsatisfactory results. Herein, we characterized the composition and metabolic function of the gut microbiota of patients with MDD during antidepressant treatment, based on 16S rRNA sequencing and metabolomics. The microbial signatures at baseline differed significantly between responder and non-responder groups. The gut microbiota of the non-responder group was mainly characterized by increased relative abundances of the phylum Actinobacteria, families Christensenellaceae and Eggerthellaceae, and genera Adlercreutzia and Christensenellaceae R7 group compared to that of the responder group. Additionally, the gut microbiota composition of the responder and non-responder groups differed significantly before and after treatment, especially at the genus level. Moreover, 20 differential metabolites between the responder and non-responder groups were identified that were mainly involved in lipid metabolism (cholestane steroids and steroid esters). Eggerthellaceae and Adlercreutzia displayed strong co-occurrence relationships with certain metabolites, suggesting alternations in the gut microbiome, and associated metabolites may be potential mediators of successful antidepressant treatment. Overall, our study demonstrates that alterations in gut microbiota composition and metabolic function might be relevant to the response to antidepressants, thereby providing insight into mechanisms responsible for their efficacy.https://www.frontiersin.org/articles/10.3389/fnins.2022.813075/fullgut microbiotadepressiontreatment responses16S rRNA sequencingmetabolomics
spellingShingle Zaiquan Dong
Zaiquan Dong
Xiaoling Shen
Yanni Hao
Jin Li
Haizhen Xu
Li Yin
Weihong Kuang
Weihong Kuang
Gut microbiome: A potential indicator for predicting treatment outcomes in major depressive disorder
Frontiers in Neuroscience
gut microbiota
depression
treatment responses
16S rRNA sequencing
metabolomics
title Gut microbiome: A potential indicator for predicting treatment outcomes in major depressive disorder
title_full Gut microbiome: A potential indicator for predicting treatment outcomes in major depressive disorder
title_fullStr Gut microbiome: A potential indicator for predicting treatment outcomes in major depressive disorder
title_full_unstemmed Gut microbiome: A potential indicator for predicting treatment outcomes in major depressive disorder
title_short Gut microbiome: A potential indicator for predicting treatment outcomes in major depressive disorder
title_sort gut microbiome a potential indicator for predicting treatment outcomes in major depressive disorder
topic gut microbiota
depression
treatment responses
16S rRNA sequencing
metabolomics
url https://www.frontiersin.org/articles/10.3389/fnins.2022.813075/full
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