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Wang D, Jiang X, Zhu H, Zhou Y, Jia L, Sun Q, Kong L, Tang Y. Relationships between the gut microbiome and brain functional alterations in first-episode, drug-naïve patients with major depressive disorder. J Affect Disord 2024; 362:578-584. [PMID: 38972643 DOI: 10.1016/j.jad.2024.07.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/11/2024] [Revised: 05/31/2024] [Accepted: 07/04/2024] [Indexed: 07/09/2024]
Abstract
OBJECTIVE Increasing evidence has shown that the microbiota-gut-brain axis (MGB) is involved in the mechanism of major depressive disorder (MDD). However, the relationship between the gut microbiome and brain function in MDD patients has not been determined. Here, we intend to identify specific changes in the gut microbiome and brain function in first-episode, drug-naïve MDD patients and then explore the associations between the two omics to elucidate how the MGB axis plays a role in MDD development. METHODS We recruited 38 first-episode, drug-naïve MDD patients and 37 healthy controls (HC). The composition of the fecal microbiome and neural spontaneous activity alterations were examined using 16S rRNA gene amplicon sequencing analysis and regional homogeneity (ReHo). Spearman correlation analyses were conducted to assess the associations between the gut microbiome and brain function. RESULTS Compared with HC, MDD patients exhibited distinct alterations in the gut microbiota and elevated ReHo in the frontal regions. In the MDD group, a positive relationship was noted between the relative abundance of Blautia and the HAMD-17 and HAMA scores, as well as between the relative abundance of Oxalobacteraceae and the HAMD-17 score. The relative abundances of Porphyromonadaceae and Parabacteroides were negatively correlated with the ReHo values of frontal regions. LIMITATIONS Our study utilized a cross-sectional design, and the number of subjects was relatively small. CONCLUSION We found that some specific gut microbiomes were associated with frontal function, and others were associated with clinical symptoms in MDD patients, which may support the role of the MGB axis underlying MDD.
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Affiliation(s)
- Dahai Wang
- Department of Psychiatry, Shengjing Hospital of China Medical University, Shenyang, Liaoning 110004, PR China
| | - Xiaowei Jiang
- Brain Function Research Section, Department of Radiology, The First Hospital of China Medical University, Shenyang, Liaoning 110001, PR China
| | - Huaqian Zhu
- Department of Clinical Nutrition, The First Hospital of China Medical University, Shenyang, Liaoning 110001, PR China
| | - Yifang Zhou
- Department of Psychiatry, Shengjing Hospital of China Medical University, Shenyang, Liaoning 110004, PR China
| | - Linna Jia
- Department of Psychiatry, Shengjing Hospital of China Medical University, Shenyang, Liaoning 110004, PR China
| | - Qikun Sun
- Department of Radiation Oncology, The First Hospital of China Medical University, Shenyang, Liaoning 110001, PR China
| | - Lingtao Kong
- Department of Psychiatry, Shengjing Hospital of China Medical University, Shenyang, Liaoning 110004, PR China; Department of Psychiatry, The First Hospital of China Medical University, Shenyang, Liaoning 110001, PR China
| | - Yanqing Tang
- Department of Psychiatry, Shengjing Hospital of China Medical University, Shenyang, Liaoning 110004, PR China.
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Qu S, Yu Z, Zhou Y, Wang S, Jia M, Chen T, Zhang X. Gut microbiota modulates neurotransmitter and gut-brain signaling. Microbiol Res 2024; 287:127858. [PMID: 39106786 DOI: 10.1016/j.micres.2024.127858] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2024] [Revised: 06/16/2024] [Accepted: 07/22/2024] [Indexed: 08/09/2024]
Abstract
Neurotransmitters, including 5-hydroxytryptamine (5-HT), dopamine (DA), gamma-aminobutyric acid (GABA), and glutamate, are essential transductors in the Gut-Brain Axis (GBA), playing critical roles both peripherally and centrally. Accumulating evidence suggests that the gut microbiota modulates intestinal neurotransmitter metabolism and gut-to-brain signaling, shedding light on the crucial role of the gut microbiota in brain function and the pathogenesis of various neuropsychiatric diseases, such as major depression disorder (MDD), anxiety, addiction and Parkinson's disease (PD). Despite the exciting findings, the mechanisms underlying the modulation of neurotransmitter metabolism and function by the gut microbiota are still being elucidated. In this review, we aim to provide a comprehensive overview of the existing knowledge about the role of the gut microbiota in neurotransmitter metabolism and function in animal and clinical experiments. Moreover, we will discuss the potential mechanisms through which gut microbiota-derived neurotransmitters contribute to the pathogenesis of neuropsychiatric diseases, thus highlighting a novel therapeutic target for these conditions.
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Affiliation(s)
- Shiyan Qu
- Department of Psychiatry, The Second Xiangya Hospital, Central South University, Changsha, Hunan 410000, China; National Clinic Research Center for Mental Disorders, Changsha, Hunan 410000, China; National Technology Institute on Mental Disorders, Changsha, Hunan 410000, China; Hunan Key Laboratory of Psychiatry and Mental Health, Changsha, Hunan 410000, China; Mental Health Institute, Second Xiangya Hospital, Central South University, Changsha 410000, China
| | - Zijin Yu
- Department of Psychiatry, The Second Xiangya Hospital, Central South University, Changsha, Hunan 410000, China; National Clinic Research Center for Mental Disorders, Changsha, Hunan 410000, China; National Technology Institute on Mental Disorders, Changsha, Hunan 410000, China; Hunan Key Laboratory of Psychiatry and Mental Health, Changsha, Hunan 410000, China; Mental Health Institute, Second Xiangya Hospital, Central South University, Changsha 410000, China
| | - Yaxuan Zhou
- Department of Psychiatry, The Second Xiangya Hospital, Central South University, Changsha, Hunan 410000, China; National Clinic Research Center for Mental Disorders, Changsha, Hunan 410000, China; National Technology Institute on Mental Disorders, Changsha, Hunan 410000, China; Hunan Key Laboratory of Psychiatry and Mental Health, Changsha, Hunan 410000, China; Mental Health Institute, Second Xiangya Hospital, Central South University, Changsha 410000, China
| | - Shiyi Wang
- Department of Psychiatry, The Second Xiangya Hospital, Central South University, Changsha, Hunan 410000, China; National Clinic Research Center for Mental Disorders, Changsha, Hunan 410000, China; National Technology Institute on Mental Disorders, Changsha, Hunan 410000, China; Hunan Key Laboratory of Psychiatry and Mental Health, Changsha, Hunan 410000, China; Mental Health Institute, Second Xiangya Hospital, Central South University, Changsha 410000, China
| | - Minqi Jia
- Department of Psychiatry, The Second Xiangya Hospital, Central South University, Changsha, Hunan 410000, China; National Clinic Research Center for Mental Disorders, Changsha, Hunan 410000, China; National Technology Institute on Mental Disorders, Changsha, Hunan 410000, China; Hunan Key Laboratory of Psychiatry and Mental Health, Changsha, Hunan 410000, China; Mental Health Institute, Second Xiangya Hospital, Central South University, Changsha 410000, China
| | - Ti Chen
- Clinical Laboratory, The Third Xiangya Hospital, Central South University, Changsha, Hunan 410000, China
| | - Xiaojie Zhang
- Department of Psychiatry, The Second Xiangya Hospital, Central South University, Changsha, Hunan 410000, China; National Clinic Research Center for Mental Disorders, Changsha, Hunan 410000, China; National Technology Institute on Mental Disorders, Changsha, Hunan 410000, China; Hunan Key Laboratory of Psychiatry and Mental Health, Changsha, Hunan 410000, China; Mental Health Institute, Second Xiangya Hospital, Central South University, Changsha 410000, China.
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3
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Xu J, Wang X, Xu W, Zhang Y, Pan L, Gao J. The protective effect of S-adenosylmethionine on chronic adolescent stress-induced depression-like behaviors by regulating gut microbiota. Eur J Pharmacol 2024; 982:176939. [PMID: 39182548 DOI: 10.1016/j.ejphar.2024.176939] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2024] [Revised: 07/30/2024] [Accepted: 08/22/2024] [Indexed: 08/27/2024]
Abstract
The efficacy and tolerability of current antidepressants for adolescent depression are inadequate. S-adenosylmethionine (SAMe), known for its effectiveness and minimal side effects in adult depression, remains unstudied in adolescents. This study explored the potential of SAMe to address depression-like behaviors in juvenile rats induced by chronic unpredictable mild stress (CUMS), with a focus on gut microbiome interactions. Adolescent male Wistar rats were subjected to a 4-week CUMS regimen and received daily intraperitoneal injections of 300 mg/kg SAMe. Behavioral assessments included the sucrose preference test, elevated plus maze test, open field test, and Y-maze test. Histopathological changes of the hippocampus and colon were observed by Nissl staining and hematoxylin and eosin staining, respectively. Gut microbiome composition was analyzed using Accurate 16S absolute quantification sequencing. The results showed that SAMe significantly improved behavioral outcomes, reduced histopathological damages in hippocampal neurons and colon tissues, and modulated the gut microbiota of depressed rats. It favorably altered the ratio of Bacteroidetes to Firmicutes, decreased the absolute abundance of Deferribacteres, and adjusted levels of key microbial genera associated with depression-like behaviors. These results suggested that SAMe could effectively counter depression-like behaviors in CUMS-exposed adolescent rats by mitigating hippocampal neuronal and colon damage and modulating the gut microbiota. This supports SAMe as a viable and tolerable treatment option for adolescent depression, highlighting the importance of the gut-brain axis in therapeutic strategies.
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Affiliation(s)
- Jingjing Xu
- Department of Clinical Psychology, Qilu Hospital (Qingdao), Cheeloo College of Medicine, Shandong University, Qingdao, Shandong, 266035, China
| | - Xinqi Wang
- Department of Clinical Psychology, Qilu Hospital (Qingdao), Cheeloo College of Medicine, Shandong University, Qingdao, Shandong, 266035, China
| | - Wangwang Xu
- Department of Clinical Psychology, Qilu Hospital (Qingdao), Cheeloo College of Medicine, Shandong University, Qingdao, Shandong, 266035, China
| | - Yang Zhang
- Department of Clinical Psychology, Qilu Hospital (Qingdao), Cheeloo College of Medicine, Shandong University, Qingdao, Shandong, 266035, China
| | - Liangke Pan
- Qingdao No.9 High School, Shandong Province, Qingdao, Shandong, 266000, China
| | - Jin Gao
- Department of Clinical Psychology, Qilu Hospital (Qingdao), Cheeloo College of Medicine, Shandong University, Qingdao, Shandong, 266035, China.
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Yuan X, Chai J, Xu W, Zhao Y. Exploring the Potential of Probiotics and Prebiotics in Major Depression: From Molecular Function to Clinical Therapy. Probiotics Antimicrob Proteins 2024:10.1007/s12602-024-10326-z. [PMID: 39078446 DOI: 10.1007/s12602-024-10326-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/10/2024] [Indexed: 07/31/2024]
Abstract
Major depressive disorder (MDD) represents a complex and challenging mental health condition with multifaceted etiology. Recent research exploring the gut-brain axis has shed light on the potential influence of gut microbiota on mental health, offering novel avenues for therapeutic intervention. This paper reviews current evidence on the role of prebiotics and probiotics in the context of MDD treatment. Clinical studies assessing the effects of prebiotic and probiotic interventions have demonstrated promising results, showcasing improvements in depression symptoms and metabolic parameters in certain populations. Notably, prebiotics and probiotics have shown the capacity to modulate inflammatory markers, cortisol levels, and neurotransmitter pathways linked to MDD. However, existing research presents varied outcomes, underscoring the need for further investigation into specific microbial strains, dosage optimization, and long-term effects. Future research should aim at refining personalized interventions, elucidating mechanisms of action, and establishing standardized protocols to integrate these interventions into clinical practice. While prebiotics and probiotics offer potential adjunctive therapies for MDD, continued interdisciplinary efforts are vital to harnessing their full therapeutic potential and reshaping the landscape of depression treatment paradigms.
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Affiliation(s)
- Xin Yuan
- Graduate School of Heilongjiang University of Chinese Medicine, Harbin, 150040, China
- The First Affiliated Hospital of Heilongjiang University of Chinese Medicine, Harbin, 150040, China
- The Second Affiliated Hospital of Heilongjiang University of Chinese Medicine, Harbin, 150040, China
| | - Jianbo Chai
- Heilongjiang Mental Hospital, Harbin, 150036, China
| | - Wenqiang Xu
- Harbin Jiarun Hospital, Harbin, 150040, China
| | - Yonghou Zhao
- Heilongjiang Mental Hospital, Harbin, 150036, China.
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Ioannou M, Borkent J, Andreu-Sánchez S, Wu J, Fu J, Sommer IEC, Haarman BCM. Reproducible gut microbial signatures in bipolar and schizophrenia spectrum disorders: A metagenome-wide study. Brain Behav Immun 2024; 121:165-175. [PMID: 39032544 DOI: 10.1016/j.bbi.2024.07.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/12/2024] [Revised: 05/30/2024] [Accepted: 07/15/2024] [Indexed: 07/23/2024] Open
Abstract
BACKGROUND Numerous studies report gut microbiome variations in bipolar disorder (BD) and schizophrenia spectrum disorders (SSD) compared to healthy individuals, though, there is limited consensus on which specific bacteria are associated with these disorders. METHODS In this study, we performed a comprehensive metagenomic shotgun sequencing analysis in 103 Dutch patients with BD/SSD and 128 healthy controls matched for age, sex, body mass index and income, while accounting for diet quality, transit time and technical confounders. To assess the replicability of the findings, we used two validation cohorts (total n = 203), including participants from a distinct population with a different metagenomic isolation protocol. RESULTS The gut microbiome of the patients had a significantly different β-diversity, but not α-diversity nor neuroactive potential compared to healthy controls. Initially, twenty-six bacterial taxa were identified as differentially abundant in patients. Among these, the previously reported genera Lachnoclostridium and Eggerthella were replicated in the validation cohorts. Employing the CoDaCoRe learning algorithm, we identified two bacterial balances specific to BD/SSD, which demonstrated an area under the receiver operating characteristic curve (AUC) of 0.77 in the test dataset. These balances were replicated in the validation cohorts and showed a positive association with the severity of psychiatric symptoms and antipsychotic use. Last, we showed a positive association between the relative abundance of Klebsiella and Klebsiella pneumoniae with antipsychotic use and between the Anaeromassilibacillus and lithium use. CONCLUSIONS Our findings suggest that microbial balances could be a reproducible method for identifying BD/SSD-specific microbial signatures, with potential diagnostic and prognostic applications. Notably, Lachnoclostridium and Eggerthella emerge as frequently occurring bacteria in BD/SSD. Last, our study reaffirms the previously established link between Klebsiella and antipsychotic medication use and identifies a novel association between Anaeromassilibacillus and lithium use.
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Affiliation(s)
- Magdalini Ioannou
- University of Groningen and University Medical Center Groningen, Department of Psychiatry, Groningen, the Netherlands; University of Groningen and University Medical Center Groningen, Department of Biomedical Sciences, Groningen, the Netherlands.
| | - Jenny Borkent
- University of Groningen and University Medical Center Groningen, Department of Biomedical Sciences, Groningen, the Netherlands
| | - Sergio Andreu-Sánchez
- University of Groningen and University Medical Center Groningen, Department of Genetics, Groningen, the Netherlands; University of Groningen and University Medical Center Groningen, Department of Pediatrics, Groningen, the Netherlands
| | - Jiafei Wu
- University of Groningen and University Medical Center Groningen, Department of Genetics, Groningen, the Netherlands
| | - Jingyuan Fu
- University of Groningen and University Medical Center Groningen, Department of Genetics, Groningen, the Netherlands; University of Groningen and University Medical Center Groningen, Department of Pediatrics, Groningen, the Netherlands
| | - Iris E C Sommer
- University of Groningen and University Medical Center Groningen, Department of Biomedical Sciences, Groningen, the Netherlands
| | - Bartholomeus C M Haarman
- University of Groningen and University Medical Center Groningen, Department of Psychiatry, Groningen, the Netherlands
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Bashir Z, Hugerth LW, Krog MC, Prast-Nielsen S, Edfeldt G, Boulund F, Schacht SR, Tetens I, Engstrand L, Schuppe-Koistinen I, Fransson E, Nielsen HS. Investigations of microbiota composition and neuroactive pathways in association with symptoms of stress and depression in a cohort of healthy women. Front Cell Infect Microbiol 2024; 14:1324794. [PMID: 39015337 PMCID: PMC11249552 DOI: 10.3389/fcimb.2024.1324794] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Accepted: 06/07/2024] [Indexed: 07/18/2024] Open
Abstract
Background Despite mounting evidence of gut-brain involvement in psychiatric conditions, functional data remain limited, and analyses of other microbial niches, such as the vaginal microbiota, are lacking in relation to mental health. This aim of this study was to investigate if the connections between the gut microbiome and mental health observed in populations with a clinical diagnosis of mental illness extend to healthy women experiencing stress and depressive symptoms. Additionally, this study examined the functional pathways of the gut microbiota according to the levels of psychological symptoms. Furthermore, the study aimed to explore potential correlations between the vaginal microbiome and mental health parameters in young women without psychiatric diagnoses. Methods In this cross-sectional study, 160 healthy Danish women (aged 18-40 years) filled out questionnaires with validated scales measuring symptoms of stress and depression and frequency of dietary intake. Fecal and vaginal microbiota samples were collected at the beginning of the menstrual cycle and vaginal samples were also collected at cycle day 8-12 and 18-22. Shotgun metagenomic profiling of the gut and vaginal microbiome was performed. The Kyoto Encyclopedia of Genes and Genomes (KEGG) was used for functional profiling and 56 Gut Brain Modules were analyzed in the fecal samples. Results The relative abundance in the gut of the genera Escherichia, Parabacteroides, and Shigella was higher in women with elevated depressive symptoms. Women with high perceived stress showed a tendency of increased abundance of Escherichia, Shigella, and Blautia. Amongst others, the potentially pathogenic genera, Escherichia and Shigella correlate with alterations in the neuroactive pathways such as the glutamatergic, GABAeric, dopaminergic, and Kynurenine pathways. Vaginosis symptoms were more prevalent in women reporting high levels of stress and depressive symptoms. Conclusions The findings of this study support the concept of a microbiota-associated effect on the neuroactive pathways even in healthy young women. This suggest, that targeting the gut microbiome could be a promising approach for future psychiatric interventions.
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Affiliation(s)
- Zahra Bashir
- Department of Obstetrics and Gynecology, Slagelse Hospital, Slagelse, Denmark
- The Recurrent Pregnancy Loss Unit, Dept. of Fertility, The Capital Region, Copenhagen University Hospitals, Rigshospitalet, Copenhagen, Denmark
- Dept. of Obstetrics and Gynecology, Hvidovre Hospital, Hvidovre, Denmark
| | - Luisa W. Hugerth
- Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, Stockholm, Sweden
- Department of Medical Biochemistry and Microbiology, Science for Life Laboratory, Uppsala University, Uppsala, Sweden
| | - Maria Christine Krog
- The Recurrent Pregnancy Loss Unit, Dept. of Fertility, The Capital Region, Copenhagen University Hospitals, Rigshospitalet, Copenhagen, Denmark
- Dept. of Obstetrics and Gynecology, Hvidovre Hospital, Hvidovre, Denmark
- Department of Clinical Immunology, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - Stefanie Prast-Nielsen
- Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, Stockholm, Sweden
| | - Gabriella Edfeldt
- Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, Stockholm, Sweden
| | - Fredrik Boulund
- Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, Stockholm, Sweden
- Science for Life Laboratory, Karolinska Institutet, Stockholm, Sweden
| | - Simon Rønnow Schacht
- Department of Nutrition, Exercise and Sports, University of Copenhagen, Copenhagen, Denmark
| | - Inge Tetens
- Department of Nutrition, Exercise and Sports, University of Copenhagen, Copenhagen, Denmark
| | - Lars Engstrand
- Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, Stockholm, Sweden
- Science for Life Laboratory, Karolinska Institutet, Stockholm, Sweden
| | - Ina Schuppe-Koistinen
- Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, Stockholm, Sweden
- Science for Life Laboratory, Karolinska Institutet, Stockholm, Sweden
| | - Emma Fransson
- Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, Stockholm, Sweden
- Department of Women’s and Children’s Health, Uppsala University, Uppsala, Sweden
| | - Henriette Svarre Nielsen
- The Recurrent Pregnancy Loss Unit, Dept. of Fertility, The Capital Region, Copenhagen University Hospitals, Rigshospitalet, Copenhagen, Denmark
- Dept. of Obstetrics and Gynecology, Hvidovre Hospital, Hvidovre, Denmark
- Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
- Department of Obstetrics and Gynecology, Hvidovre Hospital, Copenhagen, Denmark
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Liu P, Jing L, Guo F, Xu Y, Cheng J, Liu S, Liu L, Liu Z, Zhang K, Sun N. Characteristics of gut microbiota and its correlation with hs-CRP and somatic symptoms in first-episode treatment-naive major depressive disorder. J Affect Disord 2024; 356:664-671. [PMID: 38615845 DOI: 10.1016/j.jad.2024.04.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/08/2023] [Revised: 03/26/2024] [Accepted: 04/03/2024] [Indexed: 04/16/2024]
Abstract
OBJECTIVE Most patients with major depressive disorder (MDD) have somatic symptoms, but little studies pay attention in the microbial-inflammatory mechanisms of these somatic symptoms. Our study aimed to investigate alterations in gut microbiota and its correlation with inflammatory marker levels and somatic symptoms in first-episode treatment-naive MDD. METHODS Subjects contained 160 MDD patients and 101 healthy controls (HCs). MDD patients were divided into MDD with somatic symptoms group (MDDS) and MDD without somatic symptoms group (MDDN) based on Somatic Self-rating Scale (SSS). 16S ribosomal RNA sequencing were performed to analyze the composition of the fecal microbiota. The inflammatory factors were measured using enzyme linked immunosorbent assay (ELISA). Correlation among the altered gut microbiota, inflammatory factor and severity of clinical symptoms were analysized. RESULTS Relative to HCs, MDD patients had higher levels of high-sensitivity C-reactive protein (hs-CRP) as well as disordered α-diversity and β-diversity of gut microbiota. Linear discriminant effect size (LEfSe) analysis showed that MDD patients had higher proportions of Bifidobacterium, Blautia, Haemophilus and lower proportions of Bacteroides, Faecalibacterium, Roseburia, Dialister, Sutterella, Parabacteroides, Bordetella, and Phascolarctobacterium from the genus aspect. Furthermore, correlation analysis showed Bacteroides and Roseburia had negative correlations with the hs-CRP, HAMD-24, the total and factor scores of SSS in all participants. Further, compared with MDDN, the Pielous evenness was higher in MDDS. Random Forest (RF) analysis showed 20 most important genera discriminating MDD-S and MDDN, HCs. The ROC analysis showed that the AUC was 0.90 and 0.81 combining these genera respectively. CONCLUSION Our study manifested MDD patients showed disordered gut microbiota and elevated hs-CRP levels, and altered gut microbiota was closely associated with hs-CRP, depressive symptoms, and somatic symptoms.
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Affiliation(s)
- Penghong Liu
- Department of Psychiatry, First Hospital of Shanxi Medical University, Taiyuan 030001, PR China; Shanxi Medical University, Taiyuan 030001, PR China
| | - Lin Jing
- Department of Psychiatry, First Hospital of Shanxi Medical University, Taiyuan 030001, PR China; Shanxi Medical University, Taiyuan 030001, PR China
| | - Fengtao Guo
- Shanxi Medical University, Taiyuan 030001, PR China
| | - Yunfan Xu
- Department of Psychiatry, First Hospital of Shanxi Medical University, Taiyuan 030001, PR China; Shanxi Medical University, Taiyuan 030001, PR China
| | - Junxiang Cheng
- Department of Psychiatry, First Hospital of Shanxi Medical University, Taiyuan 030001, PR China; Shanxi Medical University, Taiyuan 030001, PR China
| | - Shasha Liu
- Shanxi Medical University, Taiyuan 030001, PR China
| | - Lixin Liu
- Shanxi Medical University, Taiyuan 030001, PR China; Experimental Center of Science and Research, The First Hospital of Shanxi Medical University, PR China
| | - Zhifen Liu
- Department of Psychiatry, First Hospital of Shanxi Medical University, Taiyuan 030001, PR China
| | - Kerang Zhang
- Department of Psychiatry, First Hospital of Shanxi Medical University, Taiyuan 030001, PR China; Shanxi Medical University, Taiyuan 030001, PR China.
| | - Ning Sun
- Department of Psychiatry, First Hospital of Shanxi Medical University, Taiyuan 030001, PR China; Shanxi Medical University, Taiyuan 030001, PR China.
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8
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Davies JM, Teh JJ, Ewais T, Begun J. Does Improving Depression Symptoms in Young Adults With Inflammatory Bowel Disease Alter Their Microbiome? Inflamm Bowel Dis 2024:izae121. [PMID: 38839073 DOI: 10.1093/ibd/izae121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Indexed: 06/07/2024]
Abstract
BACKGROUND Patients with inflammatory bowel diseases (IBDs) are more likely to have depression and anxiety symptoms compared with healthy individuals and those with other chronic illnesses. Previous studies have shown a link between the microbiome composition and depression symptoms; however, many antidepressant medications have antibacterial activity confounding cross-sectional studies of these populations. Therefore, we aimed to determine whether we could detect longitudinal changes in the microbiome of a subset of patients who participated in a previously published mindfulness-based cognitive therapy (MBCT) study to improve depression symptoms in adolescents and young adults with IBD. METHODS Stool samples were collected at baseline and 8 weeks (n = 24 participants, 37 total samples, 13 paired samples). During this time, some participants achieved a 50% reduction in their depression symptoms either through MBCT or treatment as usual with their mental health team (responders). The microbiome composition and function of responders were compared with participants who did not improve their depression scores (nonresponders). Depression scores were determined using the depression, anxiety, and stress score (DASS-21), and metagenomic sequencing of stool samples was performed. RESULTS No difference in alpha diversity was found between responders and nonresponders. Beta diversity measures were similarly unchanged. Clinical features including fecal calprotectin, C-reactive protein, and serum IL-6 levels were unchanged. CONCLUSIONS In this small longitudinal study, we were not able to detect longitudinal changes in the microbiome associated with improvement in depression scores. Follow-up studies that are sufficiently powered to detect changes in the microbiome are required to confirm our results.
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Affiliation(s)
- Julie M Davies
- Mater Research-The University of Queensland, Woolloongabba, QLD, Australia
| | - Jing Jie Teh
- Frazer Institute, The University of Queensland, Woolloongabba QLD, Australia
| | - Tatjana Ewais
- Mater Adolescent and Young Adult Health Clinic, South Brisbane, QLD, Australia
- School of Medicine, The University of Queensland, St Lucia, QLD, Australia
- School of Medicine and Dentistry, Gold Coast Campus, Griffith University, Southport, QLD, Australia
| | - Jakob Begun
- Mater Research-The University of Queensland, Woolloongabba, QLD, Australia
- Department of Gastroenterology, Mater Hospital Brisbane, South Brisbane, Australia
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9
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Wang W, Liu Y, Yao Z, Chen D, Tang Y, Cui J, Zhang J, Liu H, Hao Z. A microfluidic-based gut-on-a-chip model containing the gut microbiota of patients with depression reveals physiological characteristics similar to depression. LAB ON A CHIP 2024; 24:2537-2550. [PMID: 38623757 DOI: 10.1039/d3lc01052j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/17/2024]
Abstract
The diverse commensal microbiome of the human intestine has been considered to play a central role in depression. However, no host-microbiota co-culture system has been developed for depression, which hinders the controlled study of the interaction between depression and gut microbiota. We designed and manufactured a microfluidic-based gut-on-a-chip model containing the gut microbiota of patients with depression (depression-on-gut-chip, DoGC), which enables the extended co-culture of viable aerobic human intestinal epithelial cells and anaerobic gut microbiota, and allows the direct study of interactions between human gut microbiota and depression. We introduced representative gut microbiota from individuals with depression into our constructed DoGC model, successfully recapitulating the gut microbiota structure of depressed patients. This further led to the manifestation of physiological characteristics resembling depression, such as reduced gut barrier function, chronic low-grade inflammatory responses and decreased neurotransmitter 5-HT levels. Metabolome analysis of substances in the DoGC revealed a significant increase in lipopolysaccharides and tyrosine, while hyodeoxycholic acid, L-proline and L-threonine were significantly reduced, indicating the occurrence of depression. The proposed DoGC can serve as an effective platform for studying the gut microbiota of patients with depression, providing important cues for their roles in the pathology of this condition and acting as a powerful tool for personalized medicine.
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Affiliation(s)
- Wenxin Wang
- Institute of Environmental Biology and Life Support Technology, School of Biological Science and Medical Engineering, Beihang University, Beijing 100083, China.
| | - Yiyuan Liu
- Institute of Environmental Biology and Life Support Technology, School of Biological Science and Medical Engineering, Beihang University, Beijing 100083, China.
| | - Zhikai Yao
- Institute of Environmental Biology and Life Support Technology, School of Biological Science and Medical Engineering, Beihang University, Beijing 100083, China.
| | - Dengbo Chen
- Institute of Environmental Biology and Life Support Technology, School of Biological Science and Medical Engineering, Beihang University, Beijing 100083, China.
| | - Yue Tang
- Key Laboratory of Molecular Medicine and Biotherapy, The Ministry of Industry and Information Technology, School of Life Science, Beijing Institute of Technology, Beijing 100081, China.
| | - Jingwei Cui
- Institute of Environmental Biology and Life Support Technology, School of Biological Science and Medical Engineering, Beihang University, Beijing 100083, China.
| | - Jiangjiang Zhang
- Key Laboratory of Molecular Medicine and Biotherapy, The Ministry of Industry and Information Technology, School of Life Science, Beijing Institute of Technology, Beijing 100081, China.
| | - Hong Liu
- Institute of Environmental Biology and Life Support Technology, School of Biological Science and Medical Engineering, Beihang University, Beijing 100083, China.
| | - Zikai Hao
- Key Laboratory of Molecular Medicine and Biotherapy, The Ministry of Industry and Information Technology, School of Life Science, Beijing Institute of Technology, Beijing 100081, China.
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10
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Guo C, Bai Y, Li P, He K. The emerging roles of microbiota-derived extracellular vesicles in psychiatric disorders. Front Microbiol 2024; 15:1383199. [PMID: 38650872 PMCID: PMC11033316 DOI: 10.3389/fmicb.2024.1383199] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2024] [Accepted: 03/28/2024] [Indexed: 04/25/2024] Open
Abstract
Major depressive disorder, schizophrenia, and bipolar disorder are three major psychiatric disorders that significantly impact the well-being and overall health of patients. Some researches indicate that abnormalities in the gut microbiota can trigger certain psychiatric diseases. Microbiota-derived extracellular vesicles have the ability to transfer bioactive compounds into host cells, altering signaling and biological processes, ultimately influencing the mental health and illness of the host. This review aims to investigate the emerging roles of microbiota-derived extracellular vesicles in these three major psychiatric disorders and discusses their roles as diagnostic biomarkers and therapies for these psychiatric disorders.
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Affiliation(s)
- Chuang Guo
- College of Life Sciences and Food Engineering, Inner Mongolia Minzu University, Tongliao, China
| | - Yulong Bai
- College of Life Sciences and Food Engineering, Inner Mongolia Minzu University, Tongliao, China
| | - Pengfei Li
- Affiliated Hospital of Inner Mongolia Minzu University, Tongliao, China
| | - Kuanjun He
- College of Life Sciences and Food Engineering, Inner Mongolia Minzu University, Tongliao, China
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11
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Bai Y, Shu C, Hou Y, Wang GH. Adverse childhood experience and depression: the role of gut microbiota. Front Psychiatry 2024; 15:1309022. [PMID: 38628262 PMCID: PMC11019508 DOI: 10.3389/fpsyt.2024.1309022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/07/2023] [Accepted: 03/18/2024] [Indexed: 04/19/2024] Open
Abstract
Depression is the most common psychiatric disorder that burdens modern society heavily. Numerous studies have shown that adverse childhood experiences can increase susceptibility to depression, and depression with adverse childhood experiences has specific clinical-biological features. However, the specific neurobiological mechanisms are not yet precise. Recent studies suggest that the gut microbiota can influence brain function and behavior associated with depression through the "microbe-gut-brain axis" and that the composition and function of the gut microbiota are influenced by early stress. These studies offer a possibility that gut microbiota mediates the relationship between adverse childhood experiences and depression. However, few studies directly link adverse childhood experiences, gut microbiota, and depression. This article reviews recent studies on the relationship among adverse childhood experiences, gut microbiota, and depression, intending to provide insights for new research.
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Affiliation(s)
- Yu Bai
- Department of Psychiatry, Renmin Hospital of Wuhan University, Institute of Neuropsychiatry, Renmin Hospital of Wuhan University, Wuhan, Hubei, China
| | - Chang Shu
- Department of Psychiatry, Renmin Hospital of Wuhan University, Institute of Neuropsychiatry, Renmin Hospital of Wuhan University, Wuhan, Hubei, China
| | - Ying Hou
- Peking University China-Japan Friendship School of Clinical Medicine, Department of Neurology, Beijing, China
| | - Gao-Hua Wang
- Department of Psychiatry, Renmin Hospital of Wuhan University, Institute of Neuropsychiatry, Renmin Hospital of Wuhan University, Wuhan, Hubei, China
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12
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Zeng Z, Tang W. Gut microbiota: A potential player in psychiatric symptoms during COVID-19. World J Biol Psychiatry 2024; 25:267-280. [PMID: 38607962 DOI: 10.1080/15622975.2024.2342846] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Accepted: 04/04/2024] [Indexed: 04/14/2024]
Abstract
OBJECTIVES This study aims to explore the potential interconnections among gut microbiota, COVID-19 infection, depression and anxiety disorder. Additionally, it tries to assess potential therapeutic interventions that may improve the dysbiosis of gut microbiota. METHODS To achieve these objectives, we reviewed existing literature, encompassing studies and critical reviews that intersect the domains of gut microbiota, COVID-19, depression and anxiety disorders. RESULTS The findings highlight a notable correlation between the dysbiosis of gut microbiota and psychiatric symptoms in the context of COVID-19. Specifically, there is a marked reduction in the populations of bacteria that generate anti-inflammatory short-chain fatty acids (SCFAs), alongside a rise in the prevalence of gut bacterial clusters linked to inflammatory processes. Furthermore, several potential treatment strategies were summarised for improving the dysbiosis. CONCLUSIONS Gut microbiota plays a significant role in psychiatric symptoms during COVID-19, which has significant implications for the study and prevention of psychiatric symptoms in major epidemic diseases.
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Affiliation(s)
- Zijie Zeng
- Department of Psychology, School of Public Health, Southern Medical University, Guangzhou, China
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13
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Dong TS, Mayer E. Advances in Brain-Gut-Microbiome Interactions: A Comprehensive Update on Signaling Mechanisms, Disorders, and Therapeutic Implications. Cell Mol Gastroenterol Hepatol 2024; 18:1-13. [PMID: 38336171 PMCID: PMC11126987 DOI: 10.1016/j.jcmgh.2024.01.024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Revised: 01/30/2024] [Accepted: 01/31/2024] [Indexed: 02/12/2024]
Abstract
The complex, bidirectional interactions between the brain, the gut, and the gut microbes are best referred to as the brain gut microbiome system. Animal and clinical studies have identified specific signaling mechanisms within this system, with gut microbes communicating to the brain through neuronal, endocrine, and immune pathways. The brain, in turn, modulates the composition and function of the gut microbiota through the autonomic nervous system, regulating gut motility, secretion, permeability, and the release of hormones impacting microbial gene expression. Perturbations at any level of these interactions can disrupt the intricate balance, potentially contributing to the pathogenesis of intestinal, metabolic, neurologic, and psychiatric disorders. Understanding these interactions and their underlying mechanisms holds promise for identifying biomarkers, as well as novel therapeutic targets, and for developing more effective treatment strategies for these complex disorders. Continued research will advance our knowledge of this system, with the potential for improved understanding and management of a wide range of disorders. This review provides an update on the current state of knowledge regarding this system, with a focus on recent advancements and emerging research areas.
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Affiliation(s)
- Tien S Dong
- G. Oppenheimer Center for Neurobiology of Stress and Resilience, University of California Los Angeles, Los Angeles, California; Goodman-Luskin Microbiome Center, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, California; The Vatche and Tamar Manoukian Division of Digestive Diseases, Department of Medicine, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, California
| | - Emeran Mayer
- G. Oppenheimer Center for Neurobiology of Stress and Resilience, University of California Los Angeles, Los Angeles, California; Goodman-Luskin Microbiome Center, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, California; The Vatche and Tamar Manoukian Division of Digestive Diseases, Department of Medicine, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, California.
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14
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Knudsen JK, Bundgaard-Nielsen C, Leutscher P, Hjerrild S, Nielsen RE, Sørensen S. Differences in bacterial taxa between treatment-naive patients with major depressive disorder and non-affected controls may be related to a proinflammatory profile. BMC Psychiatry 2024; 24:84. [PMID: 38297265 PMCID: PMC10832199 DOI: 10.1186/s12888-024-05547-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/04/2023] [Accepted: 01/21/2024] [Indexed: 02/02/2024] Open
Abstract
BACKGROUND Major depressive disorder (MDD) is characterized by sadness and anhedonia, but also physical symptoms such as changes in appetite and weight. Gut microbiota has been hypothesized to be involved in MDD through gut-brain axis signaling. Moreover, antidepressants display antibacterial properties in the gastrointestinal tract. The aim of this study was to compare the gut microbiota and systemic inflammatory profile of young patients with MDD before and after initiation of antidepressant treatment and/or psychotherapy in comparison with a non-depressed control group (nonMDD). METHODS Fecal and blood samples were collected at baseline and at follow-up after four and twelve weeks, respectively. Patients started treatment immediately after collection of the baseline samples. The gut microbiota was characterized by 16 S rRNA gene sequencing targeting the hypervariable V4 region. Plasma levels of 49 unique immune markers were assessed using Mesoscale. RESULTS In total, 27 MDD patients and 32 nonMDD controls were included in the study. The gut microbiota in the baseline samples of MDD versus nonMDD participants did not differ regarding α- or β-diversity. However, there was a higher relative abundance of the genera Ruminococcus gnavus group, and a lower relative abundance of the genera Desulfovibrio, Tyzzerella, Megamonas, Olsenella, Gordonibacter, Allisonella and Rothia in the MDD group compared to the nonMDD group. In the MDD group, there was an increase in the genera Rothia, Desulfovibrio, Gordinobacteer and Lactobacillus, while genera belonging to the Firmicutes phylum were found depleted at twelve weeks follow-up compared to baseline. In the MDD group, IL-7, IL-8 and IL-17b levels were elevated compared to the nonMDD group at baseline. Furthermore, MDI score in the MDD group was found to correlate with Bray-Curtis dissimilarity at baseline, and several inflammatory markers at both baseline and after initiation of antidepressant treatment. CONCLUSION Several bacterial taxa differed between the MDD group and the nonMDD group at baseline and changed in relative abundance during antidepressant treatment and/or psychotherapy. The MDD group was furthermore found to have a pro-inflammatory profile compared to the nonMDD group at baseline. Further studies are required to investigate the gut microbiota and pro-inflammatory profile of patients with MDD.
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Affiliation(s)
- Julie Kristine Knudsen
- Centre for Clinical Research, North Denmark Regional Hospital, Bispensgade 37, Hjørring, 9800, Denmark
- Department of Clinical Medicine, Aalborg University, Aalborg, Denmark
| | - Caspar Bundgaard-Nielsen
- Centre for Clinical Research, North Denmark Regional Hospital, Bispensgade 37, Hjørring, 9800, Denmark
- Department of Clinical Medicine, Aalborg University, Aalborg, Denmark
| | - Peter Leutscher
- Centre for Clinical Research, North Denmark Regional Hospital, Bispensgade 37, Hjørring, 9800, Denmark
- Department of Clinical Medicine, Aalborg University, Aalborg, Denmark
- Steno Diabetes Center North Denmark, Aalborg, Denmark
| | - Simon Hjerrild
- Psychosis Research Unit, Aarhus University Hospital, Aarhus, Denmark
- Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
| | - René Ernst Nielsen
- Department of Clinical Medicine, Aalborg University, Aalborg, Denmark
- Department of Psychiatry, Aalborg University Hospital, Aalborg, Denmark
| | - Suzette Sørensen
- Centre for Clinical Research, North Denmark Regional Hospital, Bispensgade 37, Hjørring, 9800, Denmark.
- Department of Clinical Medicine, Aalborg University, Aalborg, Denmark.
- Steno Diabetes Center North Denmark, Aalborg, Denmark.
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15
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Miao Z, Chen L, Zhang Y, Zhang J, Zhang H. Bifidobacterium animalis subsp. lactis Probio-M8 alleviates abnormal behavior and regulates gut microbiota in a mouse model suffering from autism. mSystems 2024; 9:e0101323. [PMID: 38108654 PMCID: PMC10804959 DOI: 10.1128/msystems.01013-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Accepted: 11/08/2023] [Indexed: 12/19/2023] Open
Abstract
Probiotics can effectively improve a variety of neurological diseases, but there is little research on autism, and the specific mechanism is unclear. In this study, shotgun metagenomics analysis was used to investigate the preventive and therapeutic effects of Bifidobacterium animalis subsp. lactis Probio-M8 on autism. The results showed that Probio-M8 treatment significantly alleviated valproate (VPA)-induced autism in mice, with autistic symptoms characterized by increased stereotyped behaviors such as grooming, reduced learning ability, and decreased desire to socialize. Further studies have found that Probio-M8 can alleviate autism by optimizing gut microbiota diversity and regulating metabolic levels. Probio-M8 regulates gut microbiota structure by increasing the abundance of beneficial bacteria such as Bifidobacterium globosum and Akkermansia muciniphila. In addition, Probio-M8 regulates metabolic activity by increasing levels of choline, which corrects CAZy disorders. In conclusion, Probio-M8 is therapeutic in the VPA-induced autism mouse model by regulating the gut microbiome and metabolic levels.IMPORTANCEIndividuals with autism often exhibit symptoms of social invariance, obsessive-compulsive tendencies, and repetitive behaviors. However, early intervention and treatment can be effective in improving social skills and mitigating autism symptoms, including behaviors related to irritability. Although taking medication for autism may lead to side effects such as weight gain, probiotics can be an ideal intervention for alleviating these symptoms. In this study, we investigated the effects of Probio-M8 intervention on the behavior of autistic mice using an open-field test, a three-chamber sociability test, and a novel object recognition test. Metagenomic analysis revealed differences in gut microbiota diversity among groups, predicted changes in metabolite levels, and functionally annotated CAZy. Additionally, we analyzed serum neurotransmitter levels and found that probiotics were beneficial in mitigating neurotransmitter imbalances in mice with autism.
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Affiliation(s)
- Zhuangzhuang Miao
- Inner Mongolia Key Laboratory of Dairy Biotechnology and Engineering, Inner Mongolia Agricultural University, Hohhot, Inner Mongolia, China
- Key Laboratory of Dairy Products Processing, Ministry of Agriculture and Rural Affairs, Inner Mongolia Agricultural University, Hohhot, Inner Mongolia, China
| | - Lin Chen
- School of Food Science and Engineering, Hainan University, Haikou, China
| | - Yong Zhang
- School of Chemistry and Biological Engineering, University of Science and Technology Beijing (USTB), Beijing, China
| | - Jiachao Zhang
- School of Food Science and Engineering, Hainan University, Haikou, China
| | - Heping Zhang
- Inner Mongolia Key Laboratory of Dairy Biotechnology and Engineering, Inner Mongolia Agricultural University, Hohhot, Inner Mongolia, China
- Key Laboratory of Dairy Products Processing, Ministry of Agriculture and Rural Affairs, Inner Mongolia Agricultural University, Hohhot, Inner Mongolia, China
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16
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Gao M, Wang J, Liu P, Tu H, Zhang R, Zhang Y, Sun N, Zhang K. Gut microbiota composition in depressive disorder: a systematic review, meta-analysis, and meta-regression. Transl Psychiatry 2023; 13:379. [PMID: 38065935 PMCID: PMC10709466 DOI: 10.1038/s41398-023-02670-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Revised: 10/22/2023] [Accepted: 11/17/2023] [Indexed: 12/18/2023] Open
Abstract
Studies investigating gut microbiota composition in depressive disorder have yielded mixed results. The aim of our study was to compare gut microbiome between people with depressive disorder and healthy controls. We did a meta-analysis and meta-regression of studies by searching PubMed, Web of Science, Embase, Scopus, Ovid, Cochrane Library, ProQuest, and PsycINFO for articles published from database inception to March 07, 2022. Search strategies were then re-run on 12 March 2023 for an update. We undertook meta-analyses whenever values of alpha diversity and Firmicutes, Bacteroidetes (relative abundance) were available in two or more studies. A random-effects model with restricted maximum-likelihood estimator was used to synthesize the effect size (assessed by standardized mean difference [SMD]) across studies. We identified 44 studies representing 2091 patients and 2792 controls. Our study found that there were no significant differences in patients with depressive disorder on alpha diversity indices, Firmicutes and Bacteroidetes compared with healthy controls. In subgroup analyses with regional variations(east/west) as a predictor, patients who were in the West had a lower Chao1 level (SMD -0.42[-0.74 to -0.10]). Subgroup meta-analysis showed Firmicutes level was decreased in patients with depressive disorder who were medication-free (SMD -1.54[-2.36 to -0.72]), but Bacteroidetes level was increased (SMD -0.90[0.07 to 1.72]). In the meta-regression analysis, six variables cannot explain the 100% heterogeneity of the studies assessing by Chao1, Shannon index, Firmicutes, and Bacteroidetes. Depleted levels of Butyricicoccus, Coprococcus, Faecalibacterium, Fusicatenibacter, Romboutsia, and enriched levels of Eggerthella, Enterococcus, Flavonifractor, Holdemania, Streptococcus were consistently shared in depressive disorder. This systematic review and meta-analysis found that psychotropic medication and dietary habit may influence microbiota. There is reliable evidence for differences in the phylogenetic relationship in depressive disorder compared with controls, however, method of measurement and method of patient classification (symptom vs diagnosis based) may affect findings. Depressive disorder is characterized by an increase of pro-inflammatory bacteria, while anti-inflammatory butyrate-producing genera are depleted.
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Affiliation(s)
- Mingxue Gao
- Department of Psychiatry, First Hospital of Shanxi Medical University, 030001, Taiyuan, China
- First Clinical Medical College, Shanxi Medical University, 030001, Taiyuan, China
| | - Jizhi Wang
- Department of Psychiatry, First Hospital of Shanxi Medical University, 030001, Taiyuan, China
- First Clinical Medical College, Shanxi Medical University, 030001, Taiyuan, China
| | - Penghong Liu
- Department of Psychiatry, First Hospital of Shanxi Medical University, 030001, Taiyuan, China
- First Clinical Medical College, Shanxi Medical University, 030001, Taiyuan, China
| | - Hongwei Tu
- Department of Psychiatry, First Hospital of Shanxi Medical University, 030001, Taiyuan, China
- First Clinical Medical College, Shanxi Medical University, 030001, Taiyuan, China
| | - Ruiyu Zhang
- Department of Psychiatry, First Hospital of Shanxi Medical University, 030001, Taiyuan, China
- First Clinical Medical College, Shanxi Medical University, 030001, Taiyuan, China
| | - Yanyan Zhang
- Department of Psychiatry, First Hospital of Shanxi Medical University, 030001, Taiyuan, China
- Basic Medical College, Shanxi Medical University, 030001, Taiyuan, China
| | - Ning Sun
- Department of Psychiatry, First Hospital of Shanxi Medical University, 030001, Taiyuan, China.
- First Clinical Medical College, Shanxi Medical University, 030001, Taiyuan, China.
| | - Kerang Zhang
- Department of Psychiatry, First Hospital of Shanxi Medical University, 030001, Taiyuan, China.
- First Clinical Medical College, Shanxi Medical University, 030001, Taiyuan, China.
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17
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Brushett S, Gacesa R, Vich Vila A, Brandao Gois M, Andreu-Sánchez S, Swarte J, Klaassen M, Collij V, Sinha T, Bolte L, Wu J, Swertz M, de Kroon M, Reijneveld S, Wijmenga C, Weersma R, Fu J, van Loo H, Kurilshikov A, Zhernakova A. Gut feelings: the relations between depression, anxiety, psychotropic drugs and the gut microbiome. Gut Microbes 2023; 15:2281360. [PMID: 38017662 PMCID: PMC10730195 DOI: 10.1080/19490976.2023.2281360] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Accepted: 11/06/2023] [Indexed: 11/30/2023] Open
Abstract
The gut microbiome is involved in the bi-directional relationship of the gut - brain axis. As most studies of this relationship are small and do not account for use of psychotropic drugs (PTDs), we explored the relations of the gut microbiome with several internalizing disorders, while adjusting for PTDs and other relevant medications, in 7,656 Lifelines participants from the Northern Netherlands (5,522 controls and 491 participants with at least one internalizing disorder). Disorders included dysthymia, major depressive disorder (MDD), any depressive disorder (AnyDep: dysthymia or MDD), generalized anxiety disorder (GAD) and any anxiety disorder (AnyAnx: GAD, social phobia and panic disorder). Compared to controls, 17 species were associated with depressive disorders and 3 were associated with anxiety disorders. Around 90% of these associations remained significant (FDR <0.05) after adjustment for PTD use, suggesting that the disorders, not PTD use, drove these associations. Negative associations were observed for the butyrate-producing bacteria Ruminococcus bromii in participants with AnyDep and for Bifidobacterium bifidum in AnyAnx participants, along with many others. Tryptophan and glutamate synthesis modules and the 3,4-Dihydroxyphenylacetic acid synthesis module (related to dopamine metabolism) were negatively associated with MDD and/or dysthymia. After additional adjustment for functional gastrointestinal disorders and irritable bowel syndrome, these relations remained either statistically (FDR <0.05) or nominally (P < 0.05) significant. Overall, multiple bacterial species and functional modules were associated with internalizing disorders, including gut - brain relevant components, while associations to PTD use were moderate. These findings suggest that internalizing disorders rather than PTDs are associated with gut microbiome differences relative to controls.
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Affiliation(s)
- S. Brushett
- Department of Genetics, University of Groningen and University Medical Center Groningen, Groningen, The Netherlands
- Department of Health Sciences, University of Groningen and University Medical Center Groningen, Groningen, The Netherlands
| | - R. Gacesa
- Department of Genetics, University of Groningen and University Medical Center Groningen, Groningen, The Netherlands
- Department of Gastroenterology and Hepatology, University of Groningen and University Medical Center Groningen, Groningen, The Netherlands
| | - A. Vich Vila
- Department of Microbiology and Immunology, Rega Institute for Medical Research, Leuven, Belgium
- VIB-KU Leuven Center for Microbiology, Leuven, Belgium
| | - M.F. Brandao Gois
- Department of Genetics, University of Groningen and University Medical Center Groningen, Groningen, The Netherlands
| | - S. Andreu-Sánchez
- Department of Genetics, University of Groningen and University Medical Center Groningen, Groningen, The Netherlands
- Department of Pediatrics, University of Groningen and University Medical Center Groningen, Groningen, The Netherlands
| | - J.C. Swarte
- Department of Genetics, University of Groningen and University Medical Center Groningen, Groningen, The Netherlands
- Department of Gastroenterology and Hepatology, University of Groningen and University Medical Center Groningen, Groningen, The Netherlands
| | - M.A.Y. Klaassen
- Department of Genetics, University of Groningen and University Medical Center Groningen, Groningen, The Netherlands
- Department of Gastroenterology and Hepatology, University of Groningen and University Medical Center Groningen, Groningen, The Netherlands
| | - V. Collij
- Department of Genetics, University of Groningen and University Medical Center Groningen, Groningen, The Netherlands
- Department of Gastroenterology and Hepatology, University of Groningen and University Medical Center Groningen, Groningen, The Netherlands
| | - T. Sinha
- Department of Genetics, University of Groningen and University Medical Center Groningen, Groningen, The Netherlands
| | - L.A. Bolte
- Department of Genetics, University of Groningen and University Medical Center Groningen, Groningen, The Netherlands
- Department of Gastroenterology and Hepatology, University of Groningen and University Medical Center Groningen, Groningen, The Netherlands
| | - J. Wu
- Department of Genetics, University of Groningen and University Medical Center Groningen, Groningen, The Netherlands
| | - M. Swertz
- Department of Genetics, University of Groningen and University Medical Center Groningen, Groningen, The Netherlands
- Genomics Coordination Center, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - M.L.A. de Kroon
- Department of Health Sciences, University of Groningen and University Medical Center Groningen, Groningen, The Netherlands
| | - S.A. Reijneveld
- Department of Health Sciences, University of Groningen and University Medical Center Groningen, Groningen, The Netherlands
| | - C. Wijmenga
- Department of Genetics, University of Groningen and University Medical Center Groningen, Groningen, The Netherlands
| | - R.K. Weersma
- Department of Gastroenterology and Hepatology, University of Groningen and University Medical Center Groningen, Groningen, The Netherlands
| | - J. Fu
- Department of Genetics, University of Groningen and University Medical Center Groningen, Groningen, The Netherlands
- Department of Pediatrics, University of Groningen and University Medical Center Groningen, Groningen, The Netherlands
| | - H.M. van Loo
- Department of Psychiatry, Interdisciplinary Center Psychopathology and Emotion regulation, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - A. Kurilshikov
- Department of Genetics, University of Groningen and University Medical Center Groningen, Groningen, The Netherlands
| | - A. Zhernakova
- Department of Genetics, University of Groningen and University Medical Center Groningen, Groningen, The Netherlands
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18
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Zeamer AL, Salive MC, An X, Beaudoin FL, House SL, Stevens JS, Zeng D, Neylan TC, Clifford GD, Linnstaedt SD, Rauch SL, Storrow AB, Lewandowski C, Musey PI, Hendry PL, Sheikh S, Jones CW, Punches BE, Swor RA, Hudak LA, Pascual JL, Seamon MJ, Harris E, Pearson C, Peak DA, Merchant RC, Domeier RM, Rathlev NK, O'Neil BJ, Sergot P, Sanchez LD, Bruce SE, Kessler RC, Koenen KC, McLean SA, Bucci V, Haran JP. Association between microbiome and the development of adverse posttraumatic neuropsychiatric sequelae after traumatic stress exposure. Transl Psychiatry 2023; 13:354. [PMID: 37980332 PMCID: PMC10657470 DOI: 10.1038/s41398-023-02643-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/23/2023] [Revised: 10/20/2023] [Accepted: 10/30/2023] [Indexed: 11/20/2023] Open
Abstract
Patients exposed to trauma often experience high rates of adverse post-traumatic neuropsychiatric sequelae (APNS). The biological mechanisms promoting APNS are currently unknown, but the microbiota-gut-brain axis offers an avenue to understanding mechanisms as well as possibilities for intervention. Microbiome composition after trauma exposure has been poorly examined regarding neuropsychiatric outcomes. We aimed to determine whether the gut microbiomes of trauma-exposed emergency department patients who develop APNS have dysfunctional gut microbiome profiles and discover potential associated mechanisms. We performed metagenomic analysis on stool samples (n = 51) from a subset of adults enrolled in the Advancing Understanding of RecOvery afteR traumA (AURORA) study. Two-, eight- and twelve-week post-trauma outcomes for post-traumatic stress disorder (PTSD) (PTSD checklist for DSM-5), normalized depression scores (PROMIS Depression Short Form 8b) and somatic symptom counts were collected. Generalized linear models were created for each outcome using microbial abundances and relevant demographics. Mixed-effect random forest machine learning models were used to identify associations between APNS outcomes and microbial features and encoded metabolic pathways from stool metagenomics. Microbial species, including Flavonifractor plautii, Ruminococcus gnavus and, Bifidobacterium species, which are prevalent commensal gut microbes, were found to be important in predicting worse APNS outcomes from microbial abundance data. Notably, through APNS outcome modeling using microbial metabolic pathways, worse APNS outcomes were highly predicted by decreased L-arginine related pathway genes and increased citrulline and ornithine pathways. Common commensal microbial species are enriched in individuals who develop APNS. More notably, we identified a biological mechanism through which the gut microbiome reduces global arginine bioavailability, a metabolic change that has also been demonstrated in the plasma of patients with PTSD.
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Affiliation(s)
- Abigail L Zeamer
- Department of Microbiology and Physiologic Systems, University of Massachusetts Chan Medical School, Worcester, MA, USA
| | - Marie-Claire Salive
- Department of Emergency Medicine, University of Massachusetts Chan Medical School, Worcester, MA, USA
| | - Xinming An
- Institute for Trauma Recovery, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Francesca L Beaudoin
- Department of Epidemiology, Brown University, Providence, RI, USA
- Department of Emergency Medicine, Brown University, Providence, RI, USA
| | - Stacey L House
- Department of Emergency Medicine, Washington University School of Medicine, St. Louis, MO, USA
| | - Jennifer S Stevens
- Department of Psychiatry and Behavioral Sciences, Emory University School of Medicine, Atlanta, GA, USA
| | - Donglin Zeng
- Department of Biostatistics, Gillings School of Global Public Health, University of North Carolina, Chapel Hill, NC, USA
| | - Thomas C Neylan
- Departments of Psychiatry and Neurology, University of California San Francisco, San Francisco, CA, USA
| | - Gari D Clifford
- Department of Biomedical Informatics, Emory University School of Medicine, Atlanta, GA, USA
- Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, GA, USA
| | - Sarah D Linnstaedt
- Institute for Trauma Recovery, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
- The Many Brains Project, Belmont, MA, USA
- Department of Psychiatry, Harvard Medical School, Boston, MA, USA
| | - Scott L Rauch
- Department of Psychiatry, Harvard Medical School, Boston, MA, USA
- Institute for Technology in Psychiatry, McLean Hospital, Belmont, MA, USA
- Department of Psychiatry, McLean Hospital, Belmont, MA, USA
| | - Alan B Storrow
- Department of Emergency Medicine, Vanderbilt University Medical Center, Nashville, TN, USA
| | | | - Paul I Musey
- Department of Emergency Medicine, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Phyllis L Hendry
- Department of Emergency Medicine, University of Florida College of Medicine-Jacksonville, Jacksonville, FL, USA
| | - Sophia Sheikh
- Department of Emergency Medicine, University of Florida College of Medicine-Jacksonville, Jacksonville, FL, USA
| | - Christopher W Jones
- Department of Emergency Medicine, Cooper Medical School of Rowan University, Camden, NJ, USA
| | - Brittany E Punches
- Department of Emergency Medicine, Ohio State University College of Medicine, Columbus, OH, USA
- Ohio State University College of Nursing, Columbus, OH, USA
| | - Robert A Swor
- Department of Emergency Medicine, Oakland University William Beaumont School of Medicine, Rochester, MI, USA
| | - Lauren A Hudak
- Department of Emergency Medicine, Emory University School of Medicine, Atlanta, GA, USA
| | - Jose L Pascual
- Department of Surgery, University of Pennsylvania, Philadelphia, PA, USA
- Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Mark J Seamon
- Department of Surgery, University of Pennsylvania, Philadelphia, PA, USA
- Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Erica Harris
- Department of Emergency Medicine, Einstein Medical Center, Philadelphia, PA, USA
| | - Claire Pearson
- Department of Emergency Medicine, Wayne State University, Ascension St. John Hospital, Detroit, MI, USA
| | - David A Peak
- Department of Emergency Medicine, Massachusetts General Hospital, Boston, MA, USA
| | - Roland C Merchant
- Department of Emergency Medicine, Brigham and Women's Hospital, Boston, MA, USA
| | - Robert M Domeier
- Department of Emergency Medicine, Trinity Health-Ann Arbor, Ypsilanti, MI, USA
| | - Niels K Rathlev
- Department of Emergency Medicine, University of Massachusetts Medical School-Baystate, Springfield, MA, USA
| | - Brian J O'Neil
- Department of Emergency Medicine, Wayne State University, Detroit Receiving Hospital, Detroit, MI, USA
| | - Paulina Sergot
- Department of Emergency Medicine, McGovern Medical School at UTHealth, Houston, TX, USA
| | - Leon D Sanchez
- Department of Emergency Medicine, Brigham and Women's Hospital, Boston, MA, USA
- Department of Emergency Medicine, Harvard Medical School, Boston, MA, USA
| | - Steven E Bruce
- Department of Psychological Sciences, University of Missouri - St. Louis, St. Louis, MO, USA
| | - Ronald C Kessler
- Department of Health Care Policy, Harvard Medical School, Boston, MA, USA
| | | | - Samuel A McLean
- Department of Emergency Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Vanni Bucci
- Department of Microbiology and Physiologic Systems, University of Massachusetts Chan Medical School, Worcester, MA, USA.
- Program in Microbiome Dynamics, University of Massachusetts Chan Medical School, Worcester, MA, USA.
| | - John P Haran
- Department of Microbiology and Physiologic Systems, University of Massachusetts Chan Medical School, Worcester, MA, USA.
- Department of Emergency Medicine, University of Massachusetts Chan Medical School, Worcester, MA, USA.
- Program in Microbiome Dynamics, University of Massachusetts Chan Medical School, Worcester, MA, USA.
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19
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Dong Z, Xie Q, Yuan Y, Shen X, Hao Y, Li J, Xu H, Kuang W. Strain-level structure of gut microbiome showed potential association with cognitive function in major depressive disorder: A pilot study. J Affect Disord 2023; 341:236-247. [PMID: 37657622 DOI: 10.1016/j.jad.2023.08.129] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Revised: 08/13/2023] [Accepted: 08/29/2023] [Indexed: 09/03/2023]
Abstract
BACKGROUND Although the association between gut microbiota and the pathogenesis of major depressive disorder (MDD) has been well studied, it is unclear whether gut microbiota affects cognitive function in patients with MDD. In this study, we explored the association between gut microbiota and cognitive function in MDD and its possible mechanisms. METHODS We enrolled 57 patients with MDD and 30 healthy controls (HCs) and used 16S rRNA gene sequencing analysis and shotgun metagenomic sequencing analysis to determine gut microbial composition. RESULTS The richness and diversity of gut microbiota in patients with MDD were the same as those in HCs, but there were differences in the abundance of Bifidobacterium and Blautia. Compared with HCs, two strains (bin_32 and bin_55) were significantly increased, and one strain (bin_31) was significantly decreased in patients with MDD based on the strain-level meta-analysis. Time to complete the Stroop-C had significant negative correlations with bin_31 and bin_32. Bin_55 had significant negative correlations with time to complete the Stroop-C, time to complete the Stroop-CW, and repeated animal words in 60 s but significant positive correlations with correct answers in 120 s on the Stroop-CW. LIMITATIONS This study only tested the cognitive function of MDD in a small sample, which may have caused some bias. CONCLUSIONS Based on our strain-level analysis, we found that gut microbiota may be associated with the pathogenesis of MDD and may have potential effects on cognitive function.
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Affiliation(s)
- Zaiquan Dong
- Mental Health Center, West China Hospital, Sichuan University, Chengdu 610041, PR China; Department of Psychiatry and National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu 610041, PR China
| | - Qinglian Xie
- Department of Outpatient, West China Hospital of Sichuan University, Chengdu 610041, PR China
| | - Yanling Yuan
- Department of Pharmacy, West China Hospital of Sichuan University, Chengdu 610041, PR China
| | - Xiaoling Shen
- Mental Health Center, West China Hospital, Sichuan University, Chengdu 610041, PR China
| | - Yanni Hao
- Mental Health Center, West China Hospital, Sichuan University, Chengdu 610041, PR China
| | - Jin Li
- Mental Health Center, West China Hospital, Sichuan University, Chengdu 610041, PR China
| | - Haizhen Xu
- Mental Health Center, West China Hospital, Sichuan University, Chengdu 610041, PR China
| | - Weihong Kuang
- Mental Health Center, West China Hospital, Sichuan University, Chengdu 610041, PR China; Department of Psychiatry and National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu 610041, PR China.
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20
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Ou Y, Belzer C, Smidt H, de Weerth C. Methodological recommendations for human microbiota-gut-brain axis research. MICROBIOME RESEARCH REPORTS 2023; 3:1. [PMID: 38455088 PMCID: PMC10917620 DOI: 10.20517/mrr.2023.33] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Revised: 09/15/2023] [Accepted: 10/12/2023] [Indexed: 03/09/2024]
Abstract
Observational studies have determined numerous correlations between sequence-based gut microbiota data and human mental traits. However, these associations are often inconsistent across studies. This inconsistency is one of the reasons that mechanistic validation studies of the observed correlations are lagging, making it difficult to establish causal associations. The absence of consistent study findings may partially be due to the lack of clear guidelines for identifying confounders of relations between complex microbial communities and mental conditions. Gut microbial complexity also impedes deciphering microbiota-host relations by using a single analytical approach. The aim of the current review is to help solve these problems by providing methodological recommendations for future human microbiota-gut-brain axis research on the selection of confounders, the use of integrative biostatistical methods, and the steps needed to translate correlative findings into causal conclusions.
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Affiliation(s)
- Yangwenshan Ou
- Laboratory of Microbiology, Wageningen University & Research, P.O. Box 8033, 6700 EH Wageningen, The Netherlands
- Radboud university medical center, Donders Institute for Brain, Cognition and Behaviour, Department of Cognitive Neuroscience, P.O. Box 9010, 6500 GL Nijmegen, The Netherlands
| | - Clara Belzer
- Laboratory of Microbiology, Wageningen University & Research, P.O. Box 8033, 6700 EH Wageningen, The Netherlands
| | - Hauke Smidt
- Laboratory of Microbiology, Wageningen University & Research, P.O. Box 8033, 6700 EH Wageningen, The Netherlands
| | - Carolina de Weerth
- Radboud university medical center, Donders Institute for Brain, Cognition and Behaviour, Department of Cognitive Neuroscience, P.O. Box 9010, 6500 GL Nijmegen, The Netherlands
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21
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Yang Y, Mori M, Wai KM, Jiang T, Sugimura Y, Munakata W, Mikami T, Murashita K, Nakaji S, Ihara K. The Association between Gut Microbiota and Depression in the Japanese Population. Microorganisms 2023; 11:2286. [PMID: 37764129 PMCID: PMC10534301 DOI: 10.3390/microorganisms11092286] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Revised: 09/05/2023] [Accepted: 09/06/2023] [Indexed: 09/29/2023] Open
Abstract
Depression is a leading cause of disease worldwide. The association between gut microbiota and depression has barely been investigated in the Japanese population. We analyzed Iwaki health check-up data collected from 2017 to 2019 and constructed generalized linear mixed models. The independent variable was the relative abundance of each of the 37 gut microbiota genera that were reported to be associated with depression. The dependent variable was the presence of depression assessed by the Center for Epidemiologic Studies Depression Scale. Potential confounders, including grip strength, gender, height, weight, smoking, and drinking habits, were adjusted in the regression models. Nine genera's regression coefficients (Alistipes, Blautia, Coprococcus, Dorea, Faecalibacterium, Holdemania, Lactobacillus, Mitsuokella, and Oscillibacter) showed statistical significance after multiple comparisons adjustment. Among these nine gut bacteria genera, Alistipes, Blautia, Coprococcus, Dorea, Faecalibacterium, and Oscillibacter were reported to be associated with butyrate production in the intestine. Our results indicate that gut microbiotas may influence the depression condition of the host via the butyrate-producing process.
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Affiliation(s)
- Yichi Yang
- Department of Social Medicine, Hirosaki University Graduate School of Medicine, Hirosaki 036-8562, Japan; (Y.Y.); (K.M.W.); (T.J.); (Y.S.); (S.N.)
| | - Mone Mori
- School of Medicine, Hirosaki University, Hirosaki 036-8562, Japan
| | - Kyi Mar Wai
- Department of Social Medicine, Hirosaki University Graduate School of Medicine, Hirosaki 036-8562, Japan; (Y.Y.); (K.M.W.); (T.J.); (Y.S.); (S.N.)
| | - Tao Jiang
- Department of Social Medicine, Hirosaki University Graduate School of Medicine, Hirosaki 036-8562, Japan; (Y.Y.); (K.M.W.); (T.J.); (Y.S.); (S.N.)
| | - Yoshikuni Sugimura
- Department of Social Medicine, Hirosaki University Graduate School of Medicine, Hirosaki 036-8562, Japan; (Y.Y.); (K.M.W.); (T.J.); (Y.S.); (S.N.)
| | - Wataru Munakata
- Department of Hematology, National Cancer Center Hospital, Tokyo 104-0045, Japan;
| | - Tatsuya Mikami
- Innovation Center for Health Promotion, Hirosaki University Graduate School of Medicine, Hirosaki 036-8562, Japan;
| | - Koichi Murashita
- Center of Innovation Research Initiatives Organization, Hirosaki University, Hirosaki 036-8562, Japan;
| | - Shigeyuki Nakaji
- Department of Social Medicine, Hirosaki University Graduate School of Medicine, Hirosaki 036-8562, Japan; (Y.Y.); (K.M.W.); (T.J.); (Y.S.); (S.N.)
| | - Kazushige Ihara
- Department of Social Medicine, Hirosaki University Graduate School of Medicine, Hirosaki 036-8562, Japan; (Y.Y.); (K.M.W.); (T.J.); (Y.S.); (S.N.)
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22
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Zhao W, Zhu DM, Li Q, Xu X, Zhang Y, Zhang C, Zhu J, Yu Y. Brain function mediates the association between low vitamin D and neurocognitive status in female patients with major depressive disorder. Psychol Med 2023; 53:4032-4045. [PMID: 35362398 DOI: 10.1017/s0033291722000708] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
BACKGROUND Vitamin D is engaged in various neural processes, with low vitamin D linked to depression and cognitive dysfunction. There are gender differences in depression and vitamin D level. However, the relationship between depression, gender, vitamin D, cognition, and brain function has yet to be determined. METHODS One hundred and twenty-two patients with major depressive disorder (MDD) and 119 healthy controls underwent resting-state functional MRI and fractional amplitude of low-frequency fluctuations (fALFF) was calculated to assess brain function. Serum concentration of vitamin D (SCVD) and cognition (i.e. prospective memory and sustained attention) were also measured. RESULTS We found a significant group-by-gender interaction effect on SCVD whereby MDD patients showed a reduction in SCVD relative to controls in females but not males. Concurrently, there was a female-specific association of SCVD with cognition and MDD-related fALFF alterations in widespread brain regions. Remarkably, MDD- and SCVD-related fALFF changes mediated the relation between SCVD and cognition in females. CONCLUSION Apart from providing insights into the neural mechanisms by which low vitamin D contributes to cognitive impairment in MDD in a gender-dependent manner, these findings might have clinical implications for assignment of female patients with MDD and cognitive dysfunction to adjuvant vitamin D supplementation therapy, which may ultimately advance a precision approach to personalized antidepressant choice.
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Affiliation(s)
- Wenming Zhao
- Department of Radiology, The First Affiliated Hospital of Anhui Medical University, Hefei 230022, China
- Research Center of Clinical Medical Imaging, Anhui Province, Hefei 230032, China
- Anhui Provincial Institute of Translational Medicine, Hefei 230032, China
| | - Dao-Min Zhu
- Department of Sleep Disorders, Affiliated Psychological Hospital of Anhui Medical University, Hefei 230022, China
- Hefei Fourth People's Hospital, Hefei 230022, China
- Anhui Mental Health Center, Hefei 230022, China
| | - Qian Li
- Department of Radiology, The First Affiliated Hospital of Anhui Medical University, Hefei 230022, China
- Research Center of Clinical Medical Imaging, Anhui Province, Hefei 230032, China
- Anhui Provincial Institute of Translational Medicine, Hefei 230032, China
| | - Xiaotao Xu
- Department of Radiology, The First Affiliated Hospital of Anhui Medical University, Hefei 230022, China
- Research Center of Clinical Medical Imaging, Anhui Province, Hefei 230032, China
- Anhui Provincial Institute of Translational Medicine, Hefei 230032, China
| | - Yu Zhang
- Department of Sleep Disorders, Affiliated Psychological Hospital of Anhui Medical University, Hefei 230022, China
- Hefei Fourth People's Hospital, Hefei 230022, China
- Anhui Mental Health Center, Hefei 230022, China
| | - Cun Zhang
- Department of Radiology, The First Affiliated Hospital of Anhui Medical University, Hefei 230022, China
- Research Center of Clinical Medical Imaging, Anhui Province, Hefei 230032, China
- Anhui Provincial Institute of Translational Medicine, Hefei 230032, China
| | - Jiajia Zhu
- Department of Radiology, The First Affiliated Hospital of Anhui Medical University, Hefei 230022, China
- Research Center of Clinical Medical Imaging, Anhui Province, Hefei 230032, China
- Anhui Provincial Institute of Translational Medicine, Hefei 230032, China
| | - Yongqiang Yu
- Department of Radiology, The First Affiliated Hospital of Anhui Medical University, Hefei 230022, China
- Research Center of Clinical Medical Imaging, Anhui Province, Hefei 230032, China
- Anhui Provincial Institute of Translational Medicine, Hefei 230032, China
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23
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Ortega MA, Álvarez-Mon MA, García-Montero C, Fraile-Martínez Ó, Monserrat J, Martinez-Rozas L, Rodríguez-Jiménez R, Álvarez-Mon M, Lahera G. Microbiota-gut-brain axis mechanisms in the complex network of bipolar disorders: potential clinical implications and translational opportunities. Mol Psychiatry 2023; 28:2645-2673. [PMID: 36707651 PMCID: PMC10615769 DOI: 10.1038/s41380-023-01964-w] [Citation(s) in RCA: 28] [Impact Index Per Article: 28.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Revised: 01/02/2023] [Accepted: 01/13/2023] [Indexed: 01/28/2023]
Abstract
Bipolar disorders (BD) represent a severe leading disabling mental condition worldwide characterized by episodic and often progressive mood fluctuations with manic and depressive stages. The biological mechanisms underlying the pathophysiology of BD remain incompletely understood, but it seems that there is a complex picture of genetic and environmental factors implicated. Nowadays, gut microbiota is in the spotlight of new research related to this kind of psychiatric disorder, as it can be consistently related to several pathophysiological events observed in BD. In the context of the so-called microbiota-gut-brain (MGB) axis, it is shown to have a strong influence on host neuromodulation and endocrine functions (i.e., controlling the synthesis of neurotransmitters like serotonin or mediating the activation of the hypothalamic-pituitary-adrenal axis), as well as in modulation of host immune responses, critically regulating intestinal, systemic and brain inflammation (neuroinflammation). The present review aims to elucidate pathophysiological mechanisms derived from the MGB axis disruption and possible therapeutic approaches mainly focusing on gut microbiota in the complex network of BD. Understanding the mechanisms of gut microbiota and its bidirectional communication with the immune and other systems can shed light on the discovery of new therapies for improving the clinical management of these patients. Besides, the effect of psychiatric drugs on gut microbiota currently used in BD patients, together with new therapeutical approaches targeting this ecosystem (dietary patterns, probiotics, prebiotics, and other novelties) will also be contemplated.
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Affiliation(s)
- Miguel A Ortega
- Department of Medicine and Medical Specialities, University of Alcala, Alcalá de Henares, Spain.
- Ramón y Cajal Institute of Sanitary Research (IRYCIS), Madrid, Spain.
| | - Miguel Angel Álvarez-Mon
- Department of Medicine and Medical Specialities, University of Alcala, Alcalá de Henares, Spain
- Ramón y Cajal Institute of Sanitary Research (IRYCIS), Madrid, Spain
- Department of Psychiatry and Mental Health, Hospital Universitario Infanta Leonor, Madrid, Spain
| | - Cielo García-Montero
- Department of Medicine and Medical Specialities, University of Alcala, Alcalá de Henares, Spain
- Ramón y Cajal Institute of Sanitary Research (IRYCIS), Madrid, Spain
| | - Óscar Fraile-Martínez
- Department of Medicine and Medical Specialities, University of Alcala, Alcalá de Henares, Spain
- Ramón y Cajal Institute of Sanitary Research (IRYCIS), Madrid, Spain
| | - Jorge Monserrat
- Department of Medicine and Medical Specialities, University of Alcala, Alcalá de Henares, Spain
- Ramón y Cajal Institute of Sanitary Research (IRYCIS), Madrid, Spain
| | - Lucia Martinez-Rozas
- Department of Medicine and Medical Specialities, University of Alcala, Alcalá de Henares, Spain
- Ramón y Cajal Institute of Sanitary Research (IRYCIS), Madrid, Spain
| | - Roberto Rodríguez-Jiménez
- Department of Legal Medicine and Psychiatry, Complutense University, Madrid, Spain
- Institute for Health Research 12 de Octubre Hospital, (Imas 12)/CIBERSAM (Biomedical Research Networking Centre in Mental Health), Madrid, Spain
| | - Melchor Álvarez-Mon
- Department of Medicine and Medical Specialities, University of Alcala, Alcalá de Henares, Spain
- Ramón y Cajal Institute of Sanitary Research (IRYCIS), Madrid, Spain
- Immune System Diseases-Rheumatology, Oncology Service an Internal Medicine, University Hospital Príncipe de Asturias (CIBEREHD), Alcalá de Henares, Spain
- Psychiatry Service, Center for Biomedical Research in the Mental Health Network, University Hospital Príncipe de Asturias, Alcalá de Henares, Spain
| | - Guillermo Lahera
- Department of Medicine and Medical Specialities, University of Alcala, Alcalá de Henares, Spain
- Ramón y Cajal Institute of Sanitary Research (IRYCIS), Madrid, Spain
- Psychiatry Service, Center for Biomedical Research in the Mental Health Network, University Hospital Príncipe de Asturias, Alcalá de Henares, Spain
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24
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Zhou Z, Wang Y, Sun S, Zhang K, Wang L, Zhao H, Zhang Y. Paeonia lactiflora Pall. Polysaccharide alleviates depression in CUMS mice by inhibiting the NLRP3/ASC/Caspase-1 signaling pathway and affecting the composition of their intestinal flora. JOURNAL OF ETHNOPHARMACOLOGY 2023:116716. [PMID: 37295570 DOI: 10.1016/j.jep.2023.116716] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Revised: 05/21/2023] [Accepted: 05/29/2023] [Indexed: 06/12/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Paeonia lactiflora Pall. (PL) has been commonly used to de-stressing the liver and relieve depression in traditional Chinese medicine for over a thousand years. Recently, it has been widely used in studies on anti-depressant, anti-inflammatory and regulation of intestinal flora. However, the polysaccharide component has received less attention than the saponin component of PL. AIM OF THE STUDY This study aimed to elucidate the effects of Paeonia lactiflora polysaccharide (PLP) on depressive behavior in mice in a chronic unpredictable mild stress (CUMS) model and its possible action mechanisms. MATERIALS AND METHODS A model of chronic depression induced by the CUMS approach. Behavioral experiments were used to assess the success of the CUMS model and the therapeutic impact of PLP. Then the extent of damage to the colonic mucosa was assessed by H&E staining; the extent of neuronal damage was assessed by Nissler staining. Inflammatory factor expression was assessed at different sites in the mouse by enzyme-linked immunoassay (Elisa). The alterations of fecal microflora were detected by 16S rRNA gene sequencing. In the colonic tissues, NLRP3, ASC and Caspase-1 mRNA and protein levels detected by quantitative real-time PCR (qRT-PCR) and Western blot(WB). RUSULTS PLP can improve depressive behavior in CUMS mice, and colonic mucosal and neuronal damage. Elisa assay showed that PLP could reduce interleukin-1β (IL-1β), interleukin-6 (IL-6), tumour necrosis factor-α (TNF-α) levels, and increase 5-Hydroxytryptamine(5-HT) levels in CUMS mice. 16S sequencing analysis showed that PLP could regulate the intestinal flora of CUMS mice and increase their species richness. In addition, PLP significantly inhibited NLRP3/ASC/Caspase-1 signalling pathways activation in the colonic tissues of CUMS mice. CONCLUSIONS PLP modulates depression-related intestinal ecological dysregulation, increases species richness, and inhibits inflammatory factors levels and NLRP3 inflammasome activation to reduce colonic mucosal and neurons damage, thereby improving depression-like behavior and neurotransmitter release in CUMS mice.
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Affiliation(s)
- Zijun Zhou
- College of Pharmacy, Medicinal Chemistry Laboratory, Jiamusi University, 154007, Jiamusi, China
| | - Yuliang Wang
- College of Pharmacy, Medicinal Chemistry Laboratory, Jiamusi University, 154007, Jiamusi, China
| | - Shiqing Sun
- College of Pharmacy, Medicinal Chemistry Laboratory, Jiamusi University, 154007, Jiamusi, China
| | - Kai Zhang
- College of Pharmacy, Medicinal Chemistry Laboratory, Jiamusi University, 154007, Jiamusi, China
| | - Lihong Wang
- Heilongjiang Provincial Key Laboratory of New Drug Development and Pharmacotoxicological Evaluation, Jiamusi University, 154007, Jiamusi, China
| | - Hong Zhao
- Heilongjiang Provincial Key Laboratory of New Drug Development and Pharmacotoxicological Evaluation, Jiamusi University, 154007, Jiamusi, China.
| | - Yu Zhang
- College of Pharmacy, Medicinal Chemistry Laboratory, Jiamusi University, 154007, Jiamusi, China.
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25
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Chen MM, Wang P, Xie XH, Nie Z, Xu SX, Zhang N, Wang W, Yao L, Liu Z. Young adults with major depression show altered microbiome. Neuroscience 2023; 522:23-32. [PMID: 37169166 DOI: 10.1016/j.neuroscience.2023.05.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Revised: 04/26/2023] [Accepted: 05/02/2023] [Indexed: 05/13/2023]
Abstract
There is growing basic and clinical evidence that major depressive disorder (MDD) is associated with gut microbiome alterations, but clinical studies have tended not to adjust for confounding factors. And few studies on the gut microbiome focused on young adults with MDD. Here we performed a pilot study to compare the gut microbiome of young adults with MDD with healthy controls. Shotgun metagenomic sequencing was performed on stool samples obtained from 40 young adults with MDD and 42 healthy controls. After controlling for confounding factors including sex, age, BMI, alcohol or cigarette consumption, bowel movement quality, exercise or defecation frequency, we compared microbiome diversity between groups, identified differentially abundant taxa, and further compared functional differences through gut-brain and gut-metabolic module analysis. There were no significant differences in overall gut microbiome structure and function in young adults with MDD compared with controls. Abundance of Sutterellaceae and species belonging to Clostridium, Eubacterium, and Ruminococcus were significantly different between groups. The cysteine degradation I pathway was increased in MDD. After controlling for most confounding factors, this pilot study provides new evidence on the specific, often subtle gut dysbiosis affecting young adults with depression.
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Affiliation(s)
- Mian-Mian Chen
- Department of Psychiatry, Renmin Hospital of Wuhan University, Wuhan, Hubei, 430000 China
| | - Peilin Wang
- Department of Psychiatry, Renmin Hospital of Wuhan University, Wuhan, Hubei, 430000 China
| | - Xin-Hui Xie
- Department of Psychiatry, Renmin Hospital of Wuhan University, Wuhan, Hubei, 430000 China
| | - Zhaowen Nie
- Department of Psychiatry, Renmin Hospital of Wuhan University, Wuhan, Hubei, 430000 China
| | - Shu-Xian Xu
- Department of Psychiatry, Renmin Hospital of Wuhan University, Wuhan, Hubei, 430000 China
| | - Nan Zhang
- Department of Psychiatry, Renmin Hospital of Wuhan University, Wuhan, Hubei, 430000 China
| | - Wei Wang
- Department of Psychiatry, Renmin Hospital of Wuhan University, Wuhan, Hubei, 430000 China
| | - Lihua Yao
- Department of Psychiatry, Renmin Hospital of Wuhan University, Wuhan, Hubei, 430000 China
| | - Zhongchun Liu
- Department of Psychiatry, Renmin Hospital of Wuhan University, Wuhan, Hubei, 430000 China.
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26
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Chin Fatt CR, Asbury S, Jha MK, Minhajuddin A, Sethuram S, Mayes T, Kennedy SH, Foster JA, Trivedi MH. Leveraging the microbiome to understand clinical heterogeneity in depression: findings from the T-RAD study. Transl Psychiatry 2023; 13:139. [PMID: 37117195 PMCID: PMC10147668 DOI: 10.1038/s41398-023-02416-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/03/2023] [Revised: 01/25/2023] [Accepted: 03/24/2023] [Indexed: 04/30/2023] Open
Abstract
Alterations in the gut microbiome have been linked to a variety of mental illnesses including anxiety and depression. This study utilized advanced bioinformatics tools that integrated both the compositional and community nature of gut microbiota to investigate how gut microbiota influence clinical symptoms in a sample of participants with depression. Gut microbiota of 179 participants with major depressive disorder (MDD) in the Texas Resilience Against Depression (T-RAD) study were analyzed by 16S rRNA gene sequencing of stool samples. Severity of anxiety, depression, and anhedonia symptoms were assessed with General Anxiety Disorder - 7 item scale, Patient Health 9-item Questionnaire, and Dimensional Anhedonia Rating Scale, respectively. Using weighted correlation network analysis, a data-driven approach, three co-occurrence networks of bacterial taxa were identified. One of these co-occurrence networks was significantly associated with clinical features including depression and anxiety. The hub taxa associated with this co-occurrence module -one Ruminococcaceae family taxon, one Clostridiales vadinBB60 group family taxon, and one Christencenellaceae family taxon- were connected to several additional butyrate-producing bacteria suggesting that deficits in butyrate production may contribute to clinical symptoms. Therefore, by considering the community nature of the gut microbiome in a real world clinical sample, this study identified a gut microbial co-occurrence network that was significantly associated with clinical anxiety in a cohort of depressed individuals.
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Affiliation(s)
- Cherise R Chin Fatt
- Center for Depression Research and Clinical Care, Peter O'Donnell Jr. Brain Institute and the Department of Psychiatry, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Sarah Asbury
- Department of Psychiatry & Behavioural Neurosciences, McMaster University, Hamilton, ON, Canada
| | - Manish K Jha
- Center for Depression Research and Clinical Care, Peter O'Donnell Jr. Brain Institute and the Department of Psychiatry, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Abu Minhajuddin
- Center for Depression Research and Clinical Care, Peter O'Donnell Jr. Brain Institute and the Department of Psychiatry, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Sangita Sethuram
- Center for Depression Research and Clinical Care, Peter O'Donnell Jr. Brain Institute and the Department of Psychiatry, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Taryn Mayes
- Center for Depression Research and Clinical Care, Peter O'Donnell Jr. Brain Institute and the Department of Psychiatry, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Sidney H Kennedy
- Department of Psychiatry, University of Toronto and Centre for Depression and Suicide Studies, Unity Health, Toronto, ON, Canada
| | - Jane A Foster
- Center for Depression Research and Clinical Care, Peter O'Donnell Jr. Brain Institute and the Department of Psychiatry, University of Texas Southwestern Medical Center, Dallas, TX, USA.
- Department of Psychiatry & Behavioural Neurosciences, McMaster University, Hamilton, ON, Canada.
| | - Madhukar H Trivedi
- Center for Depression Research and Clinical Care, Peter O'Donnell Jr. Brain Institute and the Department of Psychiatry, University of Texas Southwestern Medical Center, Dallas, TX, USA.
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Kumar A, Pramanik J, Goyal N, Chauhan D, Sivamaruthi BS, Prajapati BG, Chaiyasut C. Gut Microbiota in Anxiety and Depression: Unveiling the Relationships and Management Options. Pharmaceuticals (Basel) 2023; 16:ph16040565. [PMID: 37111321 PMCID: PMC10146621 DOI: 10.3390/ph16040565] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 04/03/2023] [Accepted: 04/06/2023] [Indexed: 04/29/2023] Open
Abstract
The gut microbiota is critical for maintaining human health and the immunological system. Several neuroscientific studies have shown the significance of microbiota in developing brain systems. The gut microbiota and the brain are interconnected in a bidirectional relationship, as research on the microbiome-gut-brain axis shows. Significant evidence links anxiety and depression disorders to the community of microbes that live in the gastrointestinal system. Modified diet, fish and omega-3 fatty acid intake, macro- and micro-nutrient intake, prebiotics, probiotics, synbiotics, postbiotics, fecal microbiota transplantation, and 5-HTP regulation may all be utilized to alter the gut microbiota as a treatment approach. There are few preclinical and clinical research studies on the effectiveness and reliability of various therapeutic approaches for depression and anxiety. This article highlights relevant research on the association of gut microbiota with depression and anxiety and the different therapeutic possibilities of gut microbiota modification.
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Affiliation(s)
- Akash Kumar
- Department of Food Technology, SRM University, Sonipat 131029, India
| | - Jhilam Pramanik
- Department of Food Technology, ITM University, Gwalior 474001, India
| | - Nandani Goyal
- Department of Skill Agriculture, Shri Vishwakarma Skill University, Gurugram 122003, India
| | - Dimple Chauhan
- School of Bio-Engineering and Food Technology, Shoolini University, Solan 173229, India
| | - Bhagavathi Sundaram Sivamaruthi
- Office of Research Administration, Chiang Mai University, Chiang Mai 50200, Thailand
- Innovation Center for Holistic Health, Nutraceuticals, and Cosmeceuticals, Faculty of Pharmacy, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Bhupendra G Prajapati
- Shree S. K. Patel College of Pharmaceutical Education and Research, Ganpat University, Mehsana 384012, India
| | - Chaiyavat Chaiyasut
- Innovation Center for Holistic Health, Nutraceuticals, and Cosmeceuticals, Faculty of Pharmacy, Chiang Mai University, Chiang Mai 50200, Thailand
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Lin P, Li D, Shi Y, Li Q, Guo X, Dong K, Chen Q, Lou X, Li Z, Li P, Jin W, Chen S, Sun Y, Sun J, Cheng X. Dysbiosis of the Gut Microbiota and Kynurenine (Kyn) Pathway Activity as Potential Biomarkers in Patients with Major Depressive Disorder. Nutrients 2023; 15:nu15071752. [PMID: 37049591 PMCID: PMC10096701 DOI: 10.3390/nu15071752] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Revised: 03/27/2023] [Accepted: 03/27/2023] [Indexed: 04/14/2023] Open
Abstract
With increasing attention paid to the concept of the microbiota-gut-brain axis, mounting evidence reveals that the gut microbiota is involved in a variety of neurological and psychiatric diseases. However, gut microbiota changes in major depressive disorder (MDD) patients and their association with disease mechanisms remain undefined. Fifty MDD patients and sixty healthy controls were recruited from the Shanghai Healthy Mental Center, China. Fecal samples were collected, and the compositional characteristics of the intestinal flora were determined in MDD patients by MiSeq sequencing. Venous blood was collected for the detection of plasma indoleamine-2,3-dioxygenase (Ido), kynurenine (Kyn) and tryptophan (Trp) levels. Stool samples of bacterial 16S sequencing was carried out. A total of 2,705,809 optimized sequences were obtained, with an average of 54,116 per sample. More unique OTUs were observed at the family, genus and species levels in the control group compared with the MDD cases. Further analysis showed significant changes in the α- and β-diversities and relative abundance levels of gut microbial entities in MDD patients, as well as elevated amounts of Ido and Kyn indicating Kyn pathway activation, KEGG bacterial 16S function prediction analysis shows a variety of amino acids and metabolic (including Ido, Trp and Kyn) changes in the body of patients with MDD. These may result in increased neurotoxic metabolites and reduced generation of serotonin in the disease process. These changed factors may potentially be utilized as biomarkers for MDD in the future, playing more important roles in the disease course.
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Affiliation(s)
- Ping Lin
- Department of Medical Microbiology and Parasitology, School of Basic Medical Sciences, Fudan University, Shanghai 200032, China
- Department of Clinical Laboratory, Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai 200030, China
| | - Dan Li
- Department of Clinical Laboratory, Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai 200030, China
| | - Yun Shi
- Department of Clinical Laboratory, Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai 200030, China
| | - Qingtian Li
- Department of Microbiology and Immunology, The College of Basic Medical Science, Shanghai Jiao Tong University, Shanghai 200025, China
| | - Xiaokui Guo
- Department of Microbiology and Immunology, The College of Basic Medical Science, Shanghai Jiao Tong University, Shanghai 200025, China
| | - Ke Dong
- Department of Microbiology and Immunology, The College of Basic Medical Science, Shanghai Jiao Tong University, Shanghai 200025, China
| | - Qing Chen
- Department of Clinical Laboratory, Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai 200030, China
| | - Xiaoyan Lou
- Department of Clinical Laboratory, Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai 200030, China
| | - Zhenhua Li
- Department of Clinical Laboratory, Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai 200030, China
| | - Ping Li
- Department of Clinical Laboratory, Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai 200030, China
| | - Weifeng Jin
- Department of Clinical Laboratory, Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai 200030, China
| | - Shuzi Chen
- Department of Clinical Laboratory, Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai 200030, China
| | - Yang Sun
- Institute of Arthritis Research in Integrative Medicine, Shanghai Academy of Traditional Chinese Medicine, Shanghai 200052, China
| | - Jing Sun
- Institute for Integrated Intelligence and Systems, School of Medicine and Dentistry, Griffith University, Gold Coast Campus, Gold Coast, QLD 4215, Australia
- School of Computer Sciences, University of Technology Sydney, Sydney, NSW 2007, Australia
| | - Xunjia Cheng
- Department of Medical Microbiology and Parasitology, School of Basic Medical Sciences, Fudan University, Shanghai 200032, China
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Gao M, Tu H, Liu P, Zhang Y, Zhang R, Jing L, Zhang K. Association analysis of gut microbiota and efficacy of SSRIs antidepressants in patients with major depressive disorder. J Affect Disord 2023; 330:40-47. [PMID: 36871910 DOI: 10.1016/j.jad.2023.02.143] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/24/2022] [Revised: 02/13/2023] [Accepted: 02/27/2023] [Indexed: 03/07/2023]
Abstract
BACKGROUND Relevant studies have shown that gut microbiome plays an important role in the occurrence, development and treatment of major depressive disorder (MDD). Many studies have also shown that, selective serotonin reuptake inhibitors (SSRIs) antidepressants can improve the symptoms of depression by changing the distribution of gut microbiome, Here we investigated whether a distinct gut microbiome was associated with Major depressive disorder (MDD), and how it was modulated by SSRIs antidepressants. METHOD In this study, we analyzed the gut microbiome composition of 62 patients with first-episode MDD and 41 matched healthy controls, before SSRIs antidepressants treatment, using 16S rRNA gene sequencing. MDD patients characterized as treatment-resistant (TR) or responders (R) to antidepressants by score reduction rate were ≥50 % after SSRIs antidepressants treatment for eight weeks. RESULTS LDA effect size (LEfSe) analysis found that there were 50 different bacterial groups among the three groups, of which 19 genera were mainly at the genus level. The relative abundance of 12 genera increased in the HCs group, 5 genera in the R group increased in relative abundance, and 2 genera in the TR group increased in relative abundance. The correlation analysis of 19 bacterial genera and the score reduction rate showed that Blautia, Bifidobacterium and Coprococcus with higher relative abundance in the treatment effective group were related to the efficacy of SSRIs antidepressants. CONCLUSIONS Patients with MDD have a distinct gut microbiome that changes after SSRIs antidepressants treatment. Dysbiosis could be a new therapeutic target and prognostic tool for the treatment of patients with MDD.
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Affiliation(s)
- Mingxue Gao
- Department of Psychiatry, First Hospital of Shanxi Medical University, Taiyuan 030001, China; First Clinical Medical College, Shanxi Medical University, Taiyuan 030001, China
| | - Hongwei Tu
- Department of Psychiatry, First Hospital of Shanxi Medical University, Taiyuan 030001, China; First Clinical Medical College, Shanxi Medical University, Taiyuan 030001, China
| | - Penghong Liu
- Department of Psychiatry, First Hospital of Shanxi Medical University, Taiyuan 030001, China; First Clinical Medical College, Shanxi Medical University, Taiyuan 030001, China
| | - Yanyan Zhang
- Department of Psychiatry, First Hospital of Shanxi Medical University, Taiyuan 030001, China
| | - Ruiyu Zhang
- Department of Psychiatry, First Hospital of Shanxi Medical University, Taiyuan 030001, China; First Clinical Medical College, Shanxi Medical University, Taiyuan 030001, China
| | - Lin Jing
- Department of Psychiatry, First Hospital of Shanxi Medical University, Taiyuan 030001, China; First Clinical Medical College, Shanxi Medical University, Taiyuan 030001, China
| | - Kerang Zhang
- Department of Psychiatry, First Hospital of Shanxi Medical University, Taiyuan 030001, China; First Clinical Medical College, Shanxi Medical University, Taiyuan 030001, China.
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30
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Green JE, McGuinness AJ, Berk M, Castle D, Athan E, Hair C, Strandwitz P, Loughman A, Nierenberg AA, Cryan JF, Mohebbi M, Jacka F. Safety and feasibility of faecal microbiota transplant for major depressive disorder: study protocol for a pilot randomised controlled trial. Pilot Feasibility Stud 2023; 9:5. [PMID: 36624505 PMCID: PMC9827014 DOI: 10.1186/s40814-023-01235-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2022] [Accepted: 01/02/2023] [Indexed: 01/11/2023] Open
Abstract
BACKGROUND Mental disorders, including major depressive disorder (MDD), are a leading cause of non-fatal burden of disease globally. Current conventional treatments for depression have significant limitations, and there have been few new treatments in decades. The microbiota-gut-brain-axis is now recognised as playing a role in mental and brain health, and promising preclinical and clinical data suggest Faecal Microbiota Transplants (FMT) may be efficacious for treating a range of mental illnesses. However, there are no existing published studies in humans evaluating the efficacy of FMT for MDD. METHODS AND DESIGN This protocol describes an 8-week, triple-blind, 2:1 parallel group, randomised controlled pilot trial (n = 15), of enema-delivered FMT treatment (n = 10) compared with a placebo enema (n = 5) in adults with moderate-to-severe MDD. There will be a further 26-week follow-up to monitor longer-term safety. Participants will receive four FMT or placebo enemas over four consecutive days. The primary aims of the study are to evaluate feasibility and safety of FMT as an adjunctive treatment for MDD in adults. Changes in gut microbiota will be assessed as a secondary outcome. Other data will be collected, including changes in depression and anxiety symptoms, and safety parameters. DISCUSSION Modification of the microbiota-gut-brain axis via FMT is a promising potential treatment for MDD, but there are no published rigorous clinical trials evaluating its use. If this study finds that our FMT strategy is safe and feasible, a larger fully powered RCT is planned. Further high-quality research in this field is urgently needed to address unmet need. TRIAL REGISTRATION Australian and New Zealand Clinical Trials Registry: ACTRN12621000932864.
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Affiliation(s)
- Jessica E. Green
- grid.414257.10000 0004 0540 0062Deakin University, Food & Mood Centre, IMPACT-the Institute for Mental and Physical Health and Clinical Translation, School of Medicine, Barwon Health, Geelong, Australia ,grid.1002.30000 0004 1936 7857Monash Alfred Psychiatry Research Centre (MAPrc), Central Clinical School, Faculty of Medicine Nursing and Health Sciences, Monash University, Melbourne, Australia ,grid.466993.70000 0004 0436 2893Department of Psychiatry, Peninsula Health, Frankston, Australia
| | - Amelia J. McGuinness
- grid.414257.10000 0004 0540 0062Deakin University, Food & Mood Centre, IMPACT-the Institute for Mental and Physical Health and Clinical Translation, School of Medicine, Barwon Health, Geelong, Australia
| | - Michael Berk
- grid.414257.10000 0004 0540 0062Deakin University, Food & Mood Centre, IMPACT-the Institute for Mental and Physical Health and Clinical Translation, School of Medicine, Barwon Health, Geelong, Australia ,grid.1008.90000 0001 2179 088XDepartment of Psychiatry, University of Melbourne, Parkville, Australia ,grid.488596.e0000 0004 0408 1792Orygen Youth Health Research Centre and the Centre of Youth Mental Health, Melbourne, Australia ,grid.418025.a0000 0004 0606 5526The Florey Institute for Neuroscience and Mental Health, Parkville, Australia ,grid.414257.10000 0004 0540 0062Barwon Health, Geelong, Australia
| | - David Castle
- grid.17063.330000 0001 2157 2938Centre for Addiction and Mental Health and Department of Psychiatry, University of Toronto, Toronto, Canada
| | - Eugene Athan
- grid.414257.10000 0004 0540 0062Deakin University, Food & Mood Centre, IMPACT-the Institute for Mental and Physical Health and Clinical Translation, School of Medicine, Barwon Health, Geelong, Australia ,grid.414257.10000 0004 0540 0062Barwon Health, Geelong, Australia ,grid.1021.20000 0001 0526 7079School of Medicine, Deakin University, Geelong, Australia
| | - Christopher Hair
- grid.414257.10000 0004 0540 0062Barwon Health, Geelong, Australia
| | | | - Amy Loughman
- grid.414257.10000 0004 0540 0062Deakin University, Food & Mood Centre, IMPACT-the Institute for Mental and Physical Health and Clinical Translation, School of Medicine, Barwon Health, Geelong, Australia
| | - Andrew A. Nierenberg
- grid.32224.350000 0004 0386 9924Dauten Family Center for Bipolar Treatment Innovation, Department of Psychiatry, Massachusetts General Hospital, Boston, MA USA ,grid.38142.3c000000041936754XHarvard Medical School, Boston, MA USA
| | - John F. Cryan
- grid.7872.a0000000123318773Department of Anatomy and Neuroscience, University College Cork and APC Microbiome, Cork, Ireland
| | - Mohammadreza Mohebbi
- grid.414257.10000 0004 0540 0062Deakin University, Food & Mood Centre, IMPACT-the Institute for Mental and Physical Health and Clinical Translation, School of Medicine, Barwon Health, Geelong, Australia
| | - Felice Jacka
- grid.414257.10000 0004 0540 0062Deakin University, Food & Mood Centre, IMPACT-the Institute for Mental and Physical Health and Clinical Translation, School of Medicine, Barwon Health, Geelong, Australia ,grid.416107.50000 0004 0614 0346Centre for Adolescent Health, Murdoch Children’s Research Institute, Royal Children’s Hospital, Parkville, Australia ,grid.418393.40000 0001 0640 7766Black Dog Institute, Melbourne, Australia ,grid.1011.10000 0004 0474 1797James Cook University, Townsville, Australia
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Han W, Wang N, Han M, Ban M, Sun T, Xu J. Reviewing the role of gut microbiota in the pathogenesis of depression and exploring new therapeutic options. Front Neurosci 2022; 16:1029495. [PMID: 36570854 PMCID: PMC9772619 DOI: 10.3389/fnins.2022.1029495] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Accepted: 11/24/2022] [Indexed: 12/14/2022] Open
Abstract
The relationship between gut microbiota (GM) and mental health is one of the focuses of psychobiology research. In recent years, the microbial-gut-brain axis (MGBA) concept has gradually formed about this bidirectional communication between gut and brain. But how the GM is involved in regulating brain function and how they affect emotional disorders these mechanisms are tenuous and limited to animal research, and often controversial. Therefore, in this review, we attempt to summarize and categorize the latest advances in current research on the mechanisms of GM and depression to provide valid information for future diagnoses and therapy of mental disorders. Finally, we introduced some antidepressant regimens that can help restore gut dysbiosis, including classic antidepressants, Chinese materia medica (CMM), diet, and exogenous strains. These studies provide further insight into GM's role and potential pathways in emotion-related diseases, which holds essential possible clinical outcomes for people with depression or related psychiatric disorders. Future research should focus on clarifying the causal role of GM in disease and developing microbial targets, applying these findings to the prevention and treatment of depression.
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Affiliation(s)
- Wenjie Han
- Department of Breast Medicine, Liaoning Cancer Hospital, Cancer Hospital of China Medical University, Shenyang, China,Department of Pharmacology, Liaoning Cancer Hospital, Cancer Hospital of China Medical University, Shenyang, China
| | - Na Wang
- Department of Breast Medicine, Liaoning Cancer Hospital, Cancer Hospital of China Medical University, Shenyang, China,Department of Pharmacology, Liaoning Cancer Hospital, Cancer Hospital of China Medical University, Shenyang, China
| | - Mengzhen Han
- Department of Breast Medicine, Liaoning Cancer Hospital, Cancer Hospital of China Medical University, Shenyang, China,Department of Pharmacology, Liaoning Cancer Hospital, Cancer Hospital of China Medical University, Shenyang, China
| | - Meng Ban
- Liaoning Microhealth Biotechnology Co., Ltd., Shenyang, China
| | - Tao Sun
- Department of Breast Medicine, Liaoning Cancer Hospital, Cancer Hospital of China Medical University, Shenyang, China,Department of Breast Medicine, Cancer Hospital of Dalian University of Technology, Liaoning Cancer Hospital, Shenyang, China
| | - Junnan Xu
- Department of Breast Medicine, Liaoning Cancer Hospital, Cancer Hospital of China Medical University, Shenyang, China,Department of Pharmacology, Liaoning Cancer Hospital, Cancer Hospital of China Medical University, Shenyang, China,Department of Breast Medicine, Cancer Hospital of Dalian University of Technology, Liaoning Cancer Hospital, Shenyang, China,*Correspondence: Junnan Xu,
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Kou Y, Li Z, Yang T, Shen X, Wang X, Li H, Zhou K, Li L, Xia Z, Zheng X, Zhao Y. Therapeutic potential of plant iridoids in depression: a review. PHARMACEUTICAL BIOLOGY 2022; 60:2167-2181. [PMID: 36300881 PMCID: PMC9621214 DOI: 10.1080/13880209.2022.2136206] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2022] [Revised: 08/23/2022] [Accepted: 09/25/2022] [Indexed: 05/29/2023]
Abstract
CONTEXT Depression is a mental disorder characterized by low mood, reduced interest, impaired cognitive function, and vegetative symptoms such as sleep disturbances or poor appetite. Iridoids are the active constituents in several Chinese classical antidepressant formulae such as Yueju Pill, Zhi-Zi-Hou-Po Decoction, Zhi-Zi-Chi Decoction, and Baihe Dihuang Decoction. Parallel to their wide usages, iridoids are considered potential lead compounds for the treatment of neurological diseases. OBJECTIVE The review summarizes the therapeutic potential and molecular mechanisms of iridoids in the prevention or treatment of depression and contributes to identifying research gaps in iridoids as potential antidepressant medication. METHODS The following key phrases were sought in PubMed, Google Scholar, Web of Science, and China National Knowledge Internet (CNKI) without time limitation to search all relevant articles with in vivo or in vitro experimental studies as comprehensively as possible: ('iridoid' or 'seciridoid' or 'depression'). This review extracted the experimental data on the therapeutic potential and molecular mechanism of plant-derived iridoids for depression. RESULTS Plant iridoids (i.e., catalpol, geniposide, loganin), and secoiridoids (i.e., morroniside, gentiopicroside, oleuropein, swertiamarin), all showed significant improvement effects on depression. DISCUSSION AND CONCLUSIONS Iridoids exert antidepressant effects by elevating monoamine neurotransmitters, reducing pro-inflammatory factors, inhibiting hypothalamic-pituitary-adrenal (HPA) axis hyperactivity, increasing brain-derived neurotrophic factor (BDNF) and its receptors, and elevating intestinal microbial abundance. Further detailed studies on the pharmacokinetics, bioavailability, and key molecular targets of iridoids are also required in future research, ultimately to provide improvements to current antidepressant medications.
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Affiliation(s)
- Yaoyao Kou
- Three level Scientific Research Laboratory of National Administration of Traditional Chinese Medicine, Northwest University, Xi’an, PR China
| | - Zhihao Li
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Northwest University, Xi’an, PR China
| | - Tong Yang
- Three level Scientific Research Laboratory of National Administration of Traditional Chinese Medicine, Northwest University, Xi’an, PR China
| | - Xue Shen
- Three level Scientific Research Laboratory of National Administration of Traditional Chinese Medicine, Northwest University, Xi’an, PR China
| | - Xin Wang
- Three level Scientific Research Laboratory of National Administration of Traditional Chinese Medicine, Northwest University, Xi’an, PR China
| | - Haopeng Li
- Three level Scientific Research Laboratory of National Administration of Traditional Chinese Medicine, Northwest University, Xi’an, PR China
| | - Kun Zhou
- Three level Scientific Research Laboratory of National Administration of Traditional Chinese Medicine, Northwest University, Xi’an, PR China
| | - Luyao Li
- Three level Scientific Research Laboratory of National Administration of Traditional Chinese Medicine, Northwest University, Xi’an, PR China
| | - Zhaodi Xia
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Northwest University, Xi’an, PR China
| | - Xiaohui Zheng
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Northwest University, Xi’an, PR China
| | - Ye Zhao
- Three level Scientific Research Laboratory of National Administration of Traditional Chinese Medicine, Northwest University, Xi’an, PR China
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Subramaniam S, Sabran MR, Stanslas J, Kirby BP. Effect of aflatoxin B1 exposure on the progression of depressive-like behavior in rats. Front Nutr 2022; 9:1032810. [PMID: 36466381 PMCID: PMC9712965 DOI: 10.3389/fnut.2022.1032810] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Accepted: 11/02/2022] [Indexed: 07/20/2023] Open
Abstract
While it is well documented that aflatoxin B1 (AFB1); one of the most toxic food contaminants is linked to the development of depression. However, the mechanism on how it affects the gut and brain health leading to depressive-like behavior remains unclear. This study was conducted to determine the effect of AFB1 on the progression of depressive-like behavior. Thirty-two (n = 32) male Sprague Dawley rats were randomly allocated into four groups: control, low-dose (5 μg AFB1/kg), high-dose (25 μg AFB1/kg) and positive control group; exposed on chronic unpredictable mild stress (CUMS). After 4 weeks of exposure, sucrose preference test (SPT) and force swim test (FST) were used to measure behavioral despair. Fecal samples were selectively cultured to profile the bacteria. Body weight and relative organs weights were compared among groups. AFB1 and CUMS caused reduction in body weight and food intake as well as increased relative weight of adrenal glands, liver, and brain. Rats in AFB1 and CUMS groups had suppressed sucrose preference and prolonged immobility time in FST, wherein this could indicate anhedonia. Besides, fecal count of Lactobacillus spp. was significantly low following AFB1 exposure, with increasing count of Bifidobacterium spp, in comparison to the control. Indeed, further biochemical analysis and metagenomic approach are warranted to explore the underlying mechanisms on the role of gut microbiota dysbiosis and dysregulation of gut-brain axis due to AFB1 neurotoxicity on the progression of depressive-like behavior.
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Affiliation(s)
- Syarminie Subramaniam
- Department of Nutrition, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Serdang, Malaysia
| | - Mohd-Redzwan Sabran
- Department of Nutrition, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Serdang, Malaysia
| | - Johnson Stanslas
- Pharmacotherapeutics Unit, Department of Medicine, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Serdang, Malaysia
| | - Brian P. Kirby
- School of Pharmacy and Biomolecular Sciences, RCSI University of Medicine and Health Sciences, Dublin, Ireland
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Liao XX, Wu XY, Zhou YL, Li JJ, Wen YL, Zhou JJ. Gut microbiome metabolites as key actors in atherosclerosis co-depression disease. Front Microbiol 2022; 13:988643. [PMID: 36439791 PMCID: PMC9686300 DOI: 10.3389/fmicb.2022.988643] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Accepted: 10/24/2022] [Indexed: 02/26/2024] Open
Abstract
Cardiovascular diseases, mainly characterized by atherosclerosis (AS), and depression have a high comorbidity rate. However, previous studies have been conducted under a single disease, and there is a lack of studies in comorbid states to explore the commonalities in the pathogenesis of both diseases. Modern high-throughput technologies have made it clear that the gut microbiome can affect the development of the host's own disorders and have shown that their metabolites are crucial to the pathophysiology of AS and depression. The aim of this review is to summarize the current important findings on the role of gut microbiome metabolites such as pathogen-associated molecular patterns, bile acids, tryptophan metabolites, short-chain fatty acids, and trimethylamine N -oxide in depression and AS disease, with the aim of identifying potential biological targets for the early diagnosis and treatment of AS co-depression disorders.
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Affiliation(s)
- Xing-Xing Liao
- School of Rehabilitation Medicine, Gannan Medical University, Ganzhou, China
| | - Xiao-Yun Wu
- School of Basic Medicine, Gannan Medical University, Ganzhou, China
| | - Yu-Long Zhou
- School of Rehabilitation Medicine, Gannan Medical University, Ganzhou, China
| | - Jia-Jun Li
- School of Rehabilitation Medicine, Gannan Medical University, Ganzhou, China
| | - You-Liang Wen
- School of Rehabilitation Medicine, Gannan Medical University, Ganzhou, China
| | - Jun-Jie Zhou
- School of Rehabilitation Medicine, Gannan Medical University, Ganzhou, China
- Key Laboratory of Prevention and Treatment of Cardiovascular and Cerebrovascular Diseases of Ministry of Education, Gannan Medical University, Ganzhou, China
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35
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Multi-omics analyses of serum metabolome, gut microbiome and brain function reveal dysregulated microbiota-gut-brain axis in bipolar depression. Mol Psychiatry 2022; 27:4123-4135. [PMID: 35444255 DOI: 10.1038/s41380-022-01569-9] [Citation(s) in RCA: 68] [Impact Index Per Article: 34.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Revised: 04/06/2022] [Accepted: 04/07/2022] [Indexed: 02/07/2023]
Abstract
The intricate processes of microbiota-gut-brain communication in modulating human cognition and emotion, especially in the context of mood disorders, have remained elusive. Here we performed faecal metagenomic, serum metabolomics and neuroimaging studies on a cohort of 109 unmedicated patients with depressed bipolar disorder (BD) patients and 40 healthy controls (HCs) to characterise the microbial-gut-brain axis in BD. Across over 12,000 measured metabolic features, we observed a large discrepancy (73.54%) in the serum metabolome between BD patients and HCs, spotting differentially abundant microbial-derived neuroactive metabolites including multiple B-vitamins, kynurenic acid, gamma-aminobutyric acid and short-chain fatty acids. These metabolites could be linked to the abundance of gut microbiota presented with corresponding biosynthetic potentials, including Akkermansia muciniphila, Citrobacter spp. (Citrobacter freundii and Citrobacter werkmanii), Phascolarctobacterium spp., Yersinia spp. (Yersinia frederiksenii and Yersinia aleksiciae), Enterobacter spp. (Enterobacter cloacae and Enterobacter kobei) and Flavobacterium spp. Based on functional neuroimaging, BD-related neuroactive microbes and metabolites were discovered as potential markers associated with BD-typical features of functional connectivity of brain networks, hinting at aberrant cognitive function, emotion regulation, and interoception. Our study combines gut microbiota and neuroactive metabolites with brain functional connectivity, thereby revealing potential signalling pathways from the microbiota to the gut and the brain, which may have a role in the pathophysiology of BD.
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Zeng W, Yang F, Shen WL, Zhan C, Zheng P, Hu J. Interactions between central nervous system and peripheral metabolic organs. SCIENCE CHINA. LIFE SCIENCES 2022; 65:1929-1958. [PMID: 35771484 DOI: 10.1007/s11427-021-2103-5] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Accepted: 04/07/2022] [Indexed: 02/08/2023]
Abstract
According to Descartes, minds and bodies are distinct kinds of "substance", and they cannot have causal interactions. However, in neuroscience, the two-way interaction between the brain and peripheral organs is an emerging field of research. Several lines of evidence highlight the importance of such interactions. For example, the peripheral metabolic systems are overwhelmingly regulated by the mind (brain), and anxiety and depression greatly affect the functioning of these systems. Also, psychological stress can cause a variety of physical symptoms, such as bone loss. Moreover, the gut microbiota appears to play a key role in neuropsychiatric and neurodegenerative diseases. Mechanistically, as the command center of the body, the brain can regulate our internal organs and glands through the autonomic nervous system and neuroendocrine system, although it is generally considered to be outside the realm of voluntary control. The autonomic nervous system itself can be further subdivided into the sympathetic and parasympathetic systems. The sympathetic division functions a bit like the accelerator pedal on a car, and the parasympathetic division functions as the brake. The high center of the autonomic nervous system and the neuroendocrine system is the hypothalamus, which contains several subnuclei that control several basic physiological functions, such as the digestion of food and regulation of body temperature. Also, numerous peripheral signals contribute to the regulation of brain functions. Gastrointestinal (GI) hormones, insulin, and leptin are transported into the brain, where they regulate innate behaviors such as feeding, and they are also involved in emotional and cognitive functions. The brain can recognize peripheral inflammatory cytokines and induce a transient syndrome called sick behavior (SB), characterized by fatigue, reduced physical and social activity, and cognitive impairment. In summary, knowledge of the biological basis of the interactions between the central nervous system and peripheral organs will promote the full understanding of how our body works and the rational treatment of disorders. Thus, we summarize current development in our understanding of five types of central-peripheral interactions, including neural control of adipose tissues, energy expenditure, bone metabolism, feeding involving the brain-gut axis and gut microbiota. These interactions are essential for maintaining vital bodily functions, which result in homeostasis, i.e., a natural balance in the body's systems.
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Affiliation(s)
- Wenwen Zeng
- Institute for Immunology, and Department of Basic Medical Sciences, School of Medicine, Tsinghua University, Beijing, 100084, China. .,Tsinghua-Peking Center for Life Sciences, Beijing, 100084, China. .,Beijing Key Laboratory for Immunological Research on Chronic Diseases, Beijing, 100084, China.
| | - Fan Yang
- The Brain Cognition and Brain Disease Institute, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen-Hong Kong Institute of Brain Science-Shenzhen Fundamental Research Institutions, Shenzhen, 518055, China.
| | - Wei L Shen
- School of Life Science and Technology, ShanghaiTech University, Shanghai, 201210, China.
| | - Cheng Zhan
- Department of Hematology, The First Affiliated Hospital of USTC, Hefei National Laboratory for Physical Sciences at the Microscale, School of Life Sciences, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, 230026, China. .,National Institute of Biological Sciences, Beijing, 102206, China. .,Tsinghua Institute of Multidisciplinary Biomedical Research, Tsinghua University, Beijing, 100084, China.
| | - Peng Zheng
- Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400042, China. .,Institute of Neuroscience and the Collaborative Innovation Center for Brain Science, Chongqing Medical University, Chongqing, 400016, China. .,Chongqing Key Laboratory of Neurobiology, Chongqing, 400016, China.
| | - Ji Hu
- School of Life Science and Technology, ShanghaiTech University, Shanghai, 201210, China
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Alterations of the Composition and Neurometabolic Profile of Human Gut Microbiota in Major Depressive Disorder. Biomedicines 2022; 10:biomedicines10092162. [PMID: 36140263 PMCID: PMC9496097 DOI: 10.3390/biomedicines10092162] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Revised: 08/27/2022] [Accepted: 08/29/2022] [Indexed: 12/21/2022] Open
Abstract
Major depressive disorder (MDD) is among the most prevalent mental disorders worldwide. Factors causing the pathogenesis of MDD include gut microbiota (GM), which interacts with the host through the gut–brain axis. In previous studies of GM in MDD patients, 16S rRNA sequencing was used, which provided information about composition but not about function. In our study, we analyzed whole metagenome sequencing data to assess changes in both the composition and functional profile of GM. We looked at the GM of 36 MDD patients, compared with that of 38 healthy volunteers. Comparative taxonomic analysis showed decreased abundances of Faecalibacterium prausnitzii, Roseburia hominis, and Roseburia intestinalis, and elevated abundances of Escherichia coli and Ruthenibacterium lactatiformans in the GM of MDD patients. We observed decreased levels of bacterial genes encoding key enzymes involved in the production of arginine, asparagine, glutamate, glutamine, melatonin, acetic, butyric and conjugated linoleic acids, and spermidine in MDD patients. These genes produced signature pairs with Faecalibacterium prausntizii and correlated with decreased levels of this species in the GM of MDD patients. These results show the potential impact of the identified biomarker bacteria and their metabolites on the pathogenesis of MDD, and should be confirmed in future metabolomic studies.
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Association Between Gut Microbiota and Depressive Symptoms: A Cross-Sectional Population-Based Study in South Korea. Psychosom Med 2022; 84:757-765. [PMID: 35980774 DOI: 10.1097/psy.0000000000001111] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVE This study aimed to investigate the association between gut microbiota and depressive symptoms in a large population cohort of Korean adults. METHODS Overall, 1238 participants were included in the study. Participants were categorized into depressed or non-depressed groups, based on the depressive symptoms reported on the Center for Epidemiologic Studies Rating Scale for Depression, with a cutoff score of 16, and their fecal microbiota was profiled using 16S ribosomal RNA gene sequencing. Several alpha and beta diversity measures were also estimated. The association between depressive symptoms and gut microbiota was analyzed using generalized linear models. The inferred function of the metagenomes was compared between the two groups. RESULTS There were no consistent differences in alpha and beta diversity between the depressed and non-depressed groups. However, the continuous measure of depressive symptoms was inversely associated with one of four measures of alpha diversity (Shannon's diversity, p = .021). We also found a substantial difference between the depressed and non-depressed groups in the Bray-Curtis dissimilarity among the four beta diversity indices ( p = .004). Participants whose depressive symptoms exceeded a clinical cutoff score had a lower relative abundance of the genus Faecalibacterium when compared with controls (coefficient = -0.025, q = 0.047). However, the depressed group had a significantly higher abundance of the genus Oscillospira than did the non-depressed group (coefficient = 0.002, q = 0.023). CONCLUSIONS Our findings contribute to the identification of potential relationships between the gut microbiota and depressive symptoms and provide useful insights for developing microbiota-based interventions for patients with depressive symptoms.
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Ling Z, Cheng Y, Chen F, Yan X, Liu X, Shao L, Jin G, Zhou D, Jiang G, Li H, Zhao L, Song Q. Changes in fecal microbiota composition and the cytokine expression profile in school-aged children with depression: A case-control study. Front Immunol 2022; 13:964910. [PMID: 36059521 PMCID: PMC9437487 DOI: 10.3389/fimmu.2022.964910] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Accepted: 07/18/2022] [Indexed: 11/13/2022] Open
Abstract
Depression in childhood negatively affects the growth and development, school performance, and peer or family relationships of affected children, and may even lead to suicide. Despite this, its etiology and pathophysiology remain largely unknown. Increasing evidence supports that gut microbiota plays a vital role in the development of childhood depression. However, little is known about the underlying mechanisms, as most clinical studies investigating the link between gut microbiota and depression have been undertaken in adult cohorts. In present study, a total of 140 school-aged children (6–12 years) were enrolled, including 92 with depression (male/female: 42/50) and 48 healthy controls (male/female: 22/26) from Lishui, Zhejiang, China. Illumina sequencing of the V3–V4 region of the 16S rRNA gene was used to investigate gut microbiota profiles while Bio-Plex Pro Human Cytokine 27-plex Panel was employed to explore host immune response. We found that, compared with healthy controls, children with depression had greater bacterial richness and altered β-diversity. Pro-inflammatory genera such as Streptococcus were enriched in the depression group, whereas anti-inflammatory genera such as Faecalibacterium were reduced, as determined by linear discriminant analysis effect size. These changes corresponded to altered bacterial functions, especially the production of immunomodulatory metabolites. We also identified the presence of a complex inflammatory condition in children with depression, characterized by increased levels of pro-inflammatory cytokines such as IL-17 and decreased levels of anti-inflammatory cytokines such as IFN-γ. Correlation analysis demonstrated that the differential cytokine abundance was closely linked to changes in gut microbiota of children with depression. In summary, key functional genera, such as Streptococcus and Faecalibacterium, alone or in combination, could serve as novel and powerful non-invasive biomarkers to distinguish between children with depression from healthy ones. This study was the first to demonstrate that, in Chinese children with depression, gut microbiota homeostasis is disrupted, concomitant with the activation of a complex pro-inflammatory response. These findings suggest that gut microbiota might play an important role in the pathogenesis of depression in school-aged children, while key functional bacteria in gut may serve as novel targets for non-invasive diagnosis and patient-tailored early precise intervention in children with depression.
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Affiliation(s)
- Zongxin Ling
- Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
- Jinan Microecological Biomedicine Shandong Laboratory, Jinan, China
- *Correspondence: Zongxin Ling, ; Longyou Zhao, ; Qinghai Song,
| | - Yiwen Cheng
- Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Feng Chen
- Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Xiumei Yan
- Department of Laboratory Medicine, Lishui Second People’s Hospital, Lishui, China
| | - Xia Liu
- Department of Intensive Care Unit, the First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Li Shao
- Institute of Hepatology and Metabolic Diseases, Hangzhou Normal University, Hangzhou, China
- Institute of Translational Medicine, The Affiliated Hospital of Hangzhou Normal University, Hangzhou, China
| | - Guolin Jin
- Department of Psychiatry, Lishui Second People’s Hospital, Lishui, China
| | - Dajin Zhou
- Department of Laboratory Medicine, Lishui Second People’s Hospital, Lishui, China
| | - Guizhen Jiang
- Department of Laboratory Medicine, Lishui Second People’s Hospital, Lishui, China
| | - He Li
- Department of Psychiatry, Lishui Second People’s Hospital, Lishui, China
| | - Longyou Zhao
- Department of Laboratory Medicine, Lishui Second People’s Hospital, Lishui, China
- *Correspondence: Zongxin Ling, ; Longyou Zhao, ; Qinghai Song,
| | - Qinghai Song
- Department of Psychiatry, Lishui Second People’s Hospital, Lishui, China
- *Correspondence: Zongxin Ling, ; Longyou Zhao, ; Qinghai Song,
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A comprehensive review on bioavailability, safety and antidepressant potential of natural bioactive components from tea. Food Res Int 2022; 158:111540. [DOI: 10.1016/j.foodres.2022.111540] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Revised: 06/12/2022] [Accepted: 06/18/2022] [Indexed: 11/22/2022]
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Dong Z, Shen X, Hao Y, Li J, Xu H, Yin L, Kuang W. Gut microbiome: A potential indicator for predicting treatment outcomes in major depressive disorder. Front Neurosci 2022; 16:813075. [PMID: 35937875 PMCID: PMC9354493 DOI: 10.3389/fnins.2022.813075] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2021] [Accepted: 06/27/2022] [Indexed: 12/12/2022] Open
Abstract
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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Affiliation(s)
- Zaiquan Dong
- Mental Health Center of West China Hospital, Sichuan University, Chengdu, China
- Department of Psychiatry, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, China
| | - Xiaoling Shen
- Mental Health Center of West China Hospital, Sichuan University, Chengdu, China
| | - Yanni Hao
- Mental Health Center of West China Hospital, Sichuan University, Chengdu, China
| | - Jin Li
- Mental Health Center of West China Hospital, Sichuan University, Chengdu, China
| | - Haizhen Xu
- Mental Health Center of West China Hospital, Sichuan University, Chengdu, China
| | - Li Yin
- Mental Health Center of West China Hospital, Sichuan University, Chengdu, China
| | - Weihong Kuang
- Mental Health Center of West China Hospital, Sichuan University, Chengdu, China
- Department of Psychiatry, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, China
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Zhang Y, Zhang R, Liu P, Wang J, Gao M, Zhang J, Yang J, Yang C, Zhang Y, Sun N. Characteristics and Mediating Effect of Gut Microbiota With Experience of Childhood Maltreatment in Major Depressive Disorder. Front Neurosci 2022; 16:926450. [PMID: 35774560 PMCID: PMC9238290 DOI: 10.3389/fnins.2022.926450] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2022] [Accepted: 05/25/2022] [Indexed: 11/13/2022] Open
Abstract
Gut microbiota and childhood maltreatment are closely related to depressive symptoms. This study aimed to analyze the characteristics of gut microbiota in major depressive disorder (MDD) patients with childhood maltreatment experience and explore the correlation between gut microbiota, childhood maltreatment, and depressive symptoms. A total of 37 healthy controls (HCs) and 53 patients with MDD were enrolled, including 18 MDD patients without childhood maltreatment experience and 35 MDD patients with childhood maltreatment experience. The Hamilton’s Depression Scale (HAMD-24) and Childhood Trauma Questionnaire-Short Form (CTQ-SF) were used to evaluate their depressive symptoms and childhood maltreatment experience, respectively. The composition of gut microbiota was evaluated using 16S rRNA sequencing. Spearman’s correlation analysis was used to evaluate the correlation between different gut microbiota, depressive symptoms and childhood maltreatment. The mediation analysis was used to evaluate the mediating effect of gut microbiota. In the α-diversity analysis, we found that the Simpson index and Pielou’s Evenness index differed significantly between MDD patients without childhood maltreatment experience and HCs. In the β-diversity analysis, principal coordinate analysis (PCoA) showed significant differences between MDD patients without childhood maltreatment experience, MDD patients with childhood maltreatment experience and HCs. Twenty-seven different bacteria were identified through Linear discriminant analysis effect size (LEfSe) analysis at different levels of classification. The analysis of the correlation showed that Blautia, Bifidobacterium, Bacteroides, Roseburia, and Phascolarctobacterium were significantly correlated with HAMD and CTQ-SF scores. The mediation analysis showed that childhood maltreatment had a significant direct effect on the patients’ depressive symptoms, and Blautia, Bifidobacterium, Roseburia had a significant mediating effect. The findings of this study suggested that MDD patients with childhood maltreatment experience had different gut microbiota, which might have a mediating effect on the influence of childhood maltreatment on depressive symptoms.
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Affiliation(s)
- Yanyan Zhang
- Department of Psychiatry, First Hospital of Shanxi Medical University, Taiyuan, China
- Department of Physiology, Shanxi Medical University, Taiyuan, China
- Key Laboratory of Cellular Physiology, Ministry of Education, Shanxi Medical University, Taiyuan, China
| | - Ruiyu Zhang
- Department of Psychiatry, First Hospital of Shanxi Medical University, Taiyuan, China
- First Clinical Medical College of Shanxi Medical University, Taiyuan, China
| | - Penghong Liu
- Department of Psychiatry, First Hospital of Shanxi Medical University, Taiyuan, China
- First Clinical Medical College of Shanxi Medical University, Taiyuan, China
| | - Jizhi Wang
- Department of Psychiatry, First Hospital of Shanxi Medical University, Taiyuan, China
- First Clinical Medical College of Shanxi Medical University, Taiyuan, China
| | - Mingxue Gao
- Department of Psychiatry, First Hospital of Shanxi Medical University, Taiyuan, China
- First Clinical Medical College of Shanxi Medical University, Taiyuan, China
| | - Jie Zhang
- Department of Psychiatry, First Hospital of Shanxi Medical University, Taiyuan, China
- First Clinical Medical College of Shanxi Medical University, Taiyuan, China
| | - Jun Yang
- Department of Psychiatry, First Hospital of Shanxi Medical University, Taiyuan, China
- First Clinical Medical College of Shanxi Medical University, Taiyuan, China
| | - Chunxia Yang
- Department of Psychiatry, First Hospital of Shanxi Medical University, Taiyuan, China
| | - Yu Zhang
- Department of Physiology, Shanxi Medical University, Taiyuan, China
- Key Laboratory of Cellular Physiology, Ministry of Education, Shanxi Medical University, Taiyuan, China
- *Correspondence: Yu Zhang,
| | - Ning Sun
- Department of Psychiatry, First Hospital of Shanxi Medical University, Taiyuan, China
- First Clinical Medical College of Shanxi Medical University, Taiyuan, China
- Ning Sun,
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Tan J, Li X, Zhu Y, Sullivan MA, Deng B, Zhai X, Lu Y. Antidepressant Shugan Jieyu Capsule Alters Gut Microbiota and Intestinal Microbiome Function in Rats With Chronic Unpredictable Mild Stress -Induced Depression. Front Pharmacol 2022; 13:828595. [PMID: 35770090 PMCID: PMC9234866 DOI: 10.3389/fphar.2022.828595] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Accepted: 05/30/2022] [Indexed: 12/12/2022] Open
Abstract
Shugan Jieyu Capsule (SG) has been widely used in China to treat mild to moderate depression. Hypericum perforatum L. (St John’s Wort, SJW) is the main ingredient of SG and has been used as herbal medicine to treat depression in western countries. However, it is known that SJW has low bioavailability and does not easily get through the blood-brain barrier. Therefore, how SG plays an antidepressant effect in the central nervous system (CNS) remains an urgent problem to be solved. Mounting research has described the relationship between antidepressants and intestinal microbiota to illuminate antidepressive mechanisms in the CNS. We aimed to investigate the effects of therapy with SG on the function of gut microbiota and intestinal microbiota in rats with chronic unpredictable mild stress (CUMS)-induced depression. The psychophysiological state and the hypothalamic-pituitary-adrenal axis function of rats are evaluated through behavioral experiments, corticosterone levels, serotonin levels, and adrenal index measurements. 16S rDNA amplicon sequencing is used to test the changes in gut microbiota and make functional predictions of genes. With treatment of SG, the depression-like behaviors of CUMS-induced rats were reversed; the corticosterone levels and the adrenal index decreased significantly; the level of serotonin increased significantly; and the alpha and beta diversity analysis of microbiota showed an increase in the richness and uniformity of the flora were increased. SG regulated the relative abundance of Actinobacteria, Erysipelotrichaceae, Bifidobacteriaceae, Atopobiaceae, Dubosiella, and Bifidobacterium; Linear discriminant analysis effect size analysis demonstrated that Lactobacillaceae (family level), Lactobacillus (genus level), Lactobacillales (order level), Bacilli (class level), and Lactobacillus-reuteri (species level) were biomarkers in the SG group samples, and also likely to modulate metabolic pathways, such as those involved in carbohydrate metabolism, amino acid metabolism, and signal transduction. These data clearly illustrated the effect of SG on gut microbiome, thus laying the foundation for uncovering more insights on the therapeutic function of the traditional Chinese antidepressants. The potential of SG on mechanisms of antidepression to alter gut microbiota and intestinal microbiome function exposed to CUMS can be explored.
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Affiliation(s)
- Jingxuan Tan
- Department of Pharmacy, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xixuan Li
- Department of Pharmacy, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Ying Zhu
- Department of Pharmacy, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Mitchell A. Sullivan
- Glycation and Diabetes Group, Mater Research Institute- University of Queensland, The Translational Research Institute, Brisbane, QLD, Australia
| | - Bin Deng
- Department of Pharmacy, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Clinical Research Centre of Precision Drug Use for Major Diseases, Wuhan, China
| | - Xuejia Zhai
- Department of Pharmacy, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Clinical Research Centre of Precision Drug Use for Major Diseases, Wuhan, China
- *Correspondence: Xuejia Zhai, ; Yongning Lu,
| | - Yongning Lu
- Department of Pharmacy, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Clinical Research Centre of Precision Drug Use for Major Diseases, Wuhan, China
- *Correspondence: Xuejia Zhai, ; Yongning Lu,
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Borkent J, Ioannou M, Laman JD, Haarman BCM, Sommer IEC. Role of the gut microbiome in three major psychiatric disorders. Psychol Med 2022; 52:1222-1242. [PMID: 35506416 PMCID: PMC9157303 DOI: 10.1017/s0033291722000897] [Citation(s) in RCA: 39] [Impact Index Per Article: 19.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Revised: 01/14/2022] [Accepted: 03/18/2022] [Indexed: 12/19/2022]
Abstract
Major depressive disorder (MDD), bipolar disorder (BD) and schizophrenia-spectrum disorders (SSD) are heterogeneous psychiatric disorders, which place significant burden on patient's well-being and global health. Disruptions in the gut-microbiome may play a role in these psychiatric disorders. This review presents current data on composition of the human gastrointestinal microbiota, and its interaction mechanisms in the gut-brain axis in MDD, BD and SSD. Diversity metrics and microbial relative abundance differed across studies. More studies reported inconsistent findings (n = 7) or no differences (n = 8) than studies who reported lower α-diversity in these psychiatric disorders (n = 5). The most consistent findings across studies were higher relative abundances of the genera Streptococcus, Lactobacillus, and Eggerthella and lower relative abundance of the butyrate producing Faecalibacterium in patients with psychiatric disorders. All three increased genera were associated with higher symptom severity. Confounders, such as medication use and life style have not been accounted for. So far, the results of probiotics trials have been inconsistent. Most traditional and widely used probiotics (consisting of Bifidobacterium spp. and Lactobacillus spp.) are safe, however, they do not correct potential microbiota disbalances in these disorders. Findings on prebiotics and faecal microbiota transplantation (FMT) are too limited to draw definitive conclusions. Disease-specific pro/prebiotic treatment or even FMT could be auspicious interventions for prevention and therapy for psychiatric disorders and should be investigated in future trials.
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Affiliation(s)
- Jenny Borkent
- Department of Biomedical Sciences of Cells & Systems, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Magdalini Ioannou
- Department of Biomedical Sciences of Cells & Systems, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Jon D. Laman
- Department of Pathology & Medical Biology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Bartholomeus C. M. Haarman
- Department of Psychiatry, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Iris E. C. Sommer
- Department of Biomedical Sciences of Cells & Systems, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
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Dong Y, Jiang Z, Li C, Dong S, Zhang S, Lv Y, Sun F, Liu S. Development and validation of novel radiomics-based nomograms for the prediction of EGFR mutations and Ki-67 proliferation index in non-small cell lung cancer. Quant Imaging Med Surg 2022; 12:2658-2671. [PMID: 35502390 PMCID: PMC9014164 DOI: 10.21037/qims-21-980] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2021] [Accepted: 01/20/2022] [Indexed: 07/30/2023]
Abstract
BACKGROUND We developed and validated novel radiomics-based nomograms to identify epidermal growth factor receptor (EGFR) mutations and the Ki-67 proliferation index of non-small cell lung cancer. METHODS We enrolled 132 patients with histologically verified non-small cell lung cancer from four hospital institutions who underwent computed tomography (CT) scans. EGFR mutations and the Ki-67 proliferation index were measured from tumor tissues. A total of 1,287 radiomic features were extracted, and a three-stage feature selection method was implemented to acquire the most valuable radiomic features. Finally, the radiomic scores and nomograms of the two tasks were established and tested. Receiver operating characteristic curves, calibration curves, and decision curves were used to evaluate their prediction performance and clinical utility. RESULTS In task [1], smoking status and histological type were significantly associated with EGFR mutations. After feature selection, 10 features were used to establish radiomic score, which showed good performance [area under the curve (AUC) =0.800] in the validation cohort. The radiomic nomogram had an AUC of 0.798 (95% CI: 0.664 to 0.931) with a C-index of 0.798 in the validation cohort. In task [2], gender, smoking status, histological type, and stage showed a significant correlation with Ki-67 proliferation index expression. A total of 28 features were selected to develop a radiomic score, with an AUC of 0.820 in the validation cohort. The final nomogram showed an AUC of 0.828 (95% CI: 0.703 to 0.953) with a C-index of 0.828 in the validation cohort. CONCLUSIONS EGFR mutations and Ki-67 proliferation index in non-small cell lung cancer can be predicted efficiently by the novel radiomic scores and nomograms.
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Affiliation(s)
- Yinjun Dong
- Department of Thoracic Surgery, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, China
- Postdoctoral Research Workstation, Liaocheng People’s Hospital, Liaocheng, China
| | - Zekun Jiang
- West China Biomedical Big Data Center, West China Hospital, Sichuan University, Chengdu, China
| | - Chaowei Li
- Department of Clinical Drug Research, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, China
| | - Shuai Dong
- Department of Radiology, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, China
| | - Shengdong Zhang
- Department of Radiology, Yinan Branch of Qilu Hospital of Shandong University, Yinan County People’s Hospital, Linyi, China
| | - Yunhong Lv
- Department of Mathematics and Information Technology, Xingtai University, Xingtai, China
- Department of Mathematics and Statistics, University of Windsor, Windsor, Ontario, Canada
| | - Fenghao Sun
- Department of Thoracic Surgery, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Shuguang Liu
- Department of Thoracic Surgery, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, China
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Ganci M, Suleyman E, Butt H, Ball M. Associations between self-reported psychological symptom severity and gut microbiota: further support for the microgenderome. BMC Psychiatry 2022; 22:307. [PMID: 35501777 PMCID: PMC9059404 DOI: 10.1186/s12888-022-03947-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/11/2022] [Accepted: 04/14/2022] [Indexed: 11/17/2022] Open
Abstract
BACKGROUND Research into the brain-gut-microbiota axis (BGMA) continues to reveal associations between gut microbiota (GM) and psychological symptom expression, inspiring new ways of conceptualising psychological disorders. However, before GM modulation can be touted as a possible auxiliary treatment option, more research is needed as inconsistencies in previous findings regarding these associations are prevalent. Additionally, the concept of the microgenderome, which proposes that GM may interact with sex hormones, has received limited attention in studies using human samples to date. However, such research has demonstrated sex specific associations between GM and psychological symptom expression. METHOD This cross-sectional retrospective study explores associations between GM species (identified through faecal microbial analysis) and symptom severity across four psychological domains (Depressive, Neurocognitive, Stress and Anxiety, and Sleep and Fatigue) for males (N = 1143) and females (N = 3467) separately. RESULTS GM species from several genera including Bifidobacterium, Clostridium, Enterococcus, and Leuconostoc were found to be differentially associated with psychological symptom severity for males and females. As such, the findings of the current study provide support for the concept of the microgenderome. CONCLUSION While further research is needed before their implementation in psychological treatment plans, the current findings suggest that modulation of GM at the species level may hold promise as auxiliary diagnostic or treatment options. These findings may give further insight into a client's presenting problem from a more holistic, multidisciplinary perspective. The clear sex divergence in associations between GM and symptoms give insight into sex discrepancies in susceptibility to psychological disorders.
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Affiliation(s)
- Michael Ganci
- Psychology Department, Institute for Health and Sport, Victoria University, PO Box 14428, Melbourne, VIC, 8001, Australia.
| | - Emra Suleyman
- grid.1019.90000 0001 0396 9544Psychology Department, Institute for Health and Sport, Victoria University, PO Box 14428, Melbourne, VIC 8001 Australia
| | - Henry Butt
- grid.1019.90000 0001 0396 9544Psychology Department, Institute for Health and Sport, Victoria University, PO Box 14428, Melbourne, VIC 8001 Australia ,Bioscreen Yarraville (Aust) Pty Ltd, Melbourne, VIC Australia
| | - Michelle Ball
- grid.1019.90000 0001 0396 9544Psychology Department, Institute for Health and Sport, Victoria University, PO Box 14428, Melbourne, VIC 8001 Australia
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Alli SR, Gorbovskaya I, Liu JCW, Kolla NJ, Brown L, Müller DJ. The Gut Microbiome in Depression and Potential Benefit of Prebiotics, Probiotics and Synbiotics: A Systematic Review of Clinical Trials and Observational Studies. Int J Mol Sci 2022; 23:4494. [PMID: 35562885 PMCID: PMC9101152 DOI: 10.3390/ijms23094494] [Citation(s) in RCA: 52] [Impact Index Per Article: 26.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 04/05/2022] [Accepted: 04/08/2022] [Indexed: 12/12/2022] Open
Abstract
An emerging body of literature demonstrates differences in the gut microbiome (GMB) of patients with major depressive disorder (MDD) compared to healthy controls (HC), as well as the potential benefits of prebiotic, probiotic, and synbiotic treatment. We conducted a systematic review of 24 observational studies (n = 2817), and 19 interventional trials (n = 1119). We assessed alpha diversity, beta diversity, and taxa abundance changes in patients with MDD relative to HC, as well as the effect of prebiotics, probiotics, and synbiotics on depressive symptoms in individuals with clinical or subclinical depression. We observed no significant differences in alpha diversity but a significant difference in beta diversity between patients with MDD and HC. There were fluctuations in the abundance of specific taxa in patients with MDD relative to HC. Probiotic and synbiotic, but not prebiotic, treatment showed a modest benefit in reducing depressive symptoms in patients with MDD over four to nine weeks. The GMB profiles of patients with MDD differ significantly from HC, but further studies are needed to elucidate the benefits of prebiotic, probiotic and synbiotic treatments relative to antidepressants and over longer follow-up before these therapies are implemented into clinical practice.
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Affiliation(s)
- Sauliha R. Alli
- Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health, Toronto, ON M5T 1R8, Canada; (S.R.A.); (I.G.); (J.C.W.L.); (N.J.K.)
- Temerty Faculty of Medicine, University of Toronto, Toronto, ON M5S 1A8, Canada
| | - Ilona Gorbovskaya
- Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health, Toronto, ON M5T 1R8, Canada; (S.R.A.); (I.G.); (J.C.W.L.); (N.J.K.)
- Institute of Medical Sciences, University of Toronto, Toronto, ON M5S 1A8, Canada
| | - Jonathan C. W. Liu
- Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health, Toronto, ON M5T 1R8, Canada; (S.R.A.); (I.G.); (J.C.W.L.); (N.J.K.)
- Department of Pharmacology and Toxicology, University of Toronto, Toronto, ON M5S 1A8, Canada
| | - Nathan J. Kolla
- Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health, Toronto, ON M5T 1R8, Canada; (S.R.A.); (I.G.); (J.C.W.L.); (N.J.K.)
- Institute of Medical Sciences, University of Toronto, Toronto, ON M5S 1A8, Canada
- Department of Psychiatry, University of Toronto, Toronto, ON M5T 1R8, Canada
| | - Lisa Brown
- Great Scott Consulting, New York, NY, USA;
| | - Daniel J. Müller
- Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health, Toronto, ON M5T 1R8, Canada; (S.R.A.); (I.G.); (J.C.W.L.); (N.J.K.)
- Temerty Faculty of Medicine, University of Toronto, Toronto, ON M5S 1A8, Canada
- Department of Psychiatry, University of Toronto, Toronto, ON M5T 1R8, Canada
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48
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Khoshnevisan K, Chehrehgosha M, Conant M, Mohammad Meftah A, Baharifar H, Ejtahed HS, Angoorani P, Gholami M, Sharifi F, Maleki H, Larijani B, Khorramizadeh MR. Interactive relationship between Trp metabolites and gut microbiota: The impact on human pathology of disease. J Appl Microbiol 2022; 132:4186-4207. [PMID: 35304801 DOI: 10.1111/jam.15533] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Revised: 01/24/2022] [Accepted: 03/17/2022] [Indexed: 11/28/2022]
Abstract
Tryptophan (Trp), an α-amino acid, is the precursor of serotonin (5-hydroxytryptamine, 5-HT), which is involved in a variety of features of metabolic function and human nutrition. Evidence highlights the role of Trp metabolites (exclusively 5-HT) in the gastrointestinal (GI) tract; however, the mechanisms of action involved in the release of 5-HT in the GI tract are still unknown. Considering the fact that variations of 5-HT may facilitate the growth of certain GI disorders, gaining a better understanding of the function and release of 5-HT in the GI tract would be beneficial. Additionally, investigating Trp metabolism may clarify the relationship between Trp and gut microbiota. It is believed that other metabolites of Trp (mostly that of the kynurenine pathway) may play a significant role in controlling gut microbiota function. In this review, we have attempted to summarize the current research investigating the relationship of gut microbiota, Trp, and 5-HT metabolism (with particular attention paid to their metabolite type, as well as a discussion of the research methods used in each study). Taking together, regarding the role that Trp/5-HT plays in a range of physical and mental diseases, the gut bacterial types, as well as the related disorders, have been exclusively considered.
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Affiliation(s)
- Kamyar Khoshnevisan
- Medical Nanotechnology and Tissue Engineering Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.,Department of Tissue Engineering and Applied Cell Sciences, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Maryam Chehrehgosha
- Department of Surgical Technology, Paramedical School, Golestan University of Medical Sciences, Gorgan, Iran.,Department of Gerontology, University of Social Welfare and Rehabilitation Sciences, Tehran, Iran
| | - Melissa Conant
- Department of Psychiatry, New York State Psychiatric Institute, Columbia University, New York, NY, USA
| | - Amir Mohammad Meftah
- Department of Psychiatry, New York State Psychiatric Institute, Columbia University, New York, NY, USA
| | - Hadi Baharifar
- Department of Medical Nanotechnology, Applied Biophotonics Research Center, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Hanieh-Sadat Ejtahed
- Obesity and Eating Habits Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran.,Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Pooneh Angoorani
- Obesity and Eating Habits Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Morteza Gholami
- Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Farshad Sharifi
- Elderly Health Research Center, Endocrinology and Metabolism Population Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Hassan Maleki
- Nano Drug Delivery Research Center, Health Technology Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Bagher Larijani
- Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Mohammad Reza Khorramizadeh
- Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
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Bonnechère B, Amin N, van Duijn C. The Role of Gut Microbiota in Neuropsychiatric Diseases – Creation of An Atlas-Based on Quantified Evidence. Front Cell Infect Microbiol 2022; 12:831666. [PMID: 35360098 PMCID: PMC8964285 DOI: 10.3389/fcimb.2022.831666] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2021] [Accepted: 02/21/2022] [Indexed: 01/15/2023] Open
Abstract
There is a growing body of evidence highlighting the significant role of gut microbiota in various pathologies. We performed a systematic review to review the different microbiota involved in neuropsychiatric diseases. 50 studies (23 studies for autism spectrum disorders, 18 for major depression, and 9 for schizophrenia), representing 2,137 patients and 2,844 controls. Concerning the microbiota, the genera Prevotella, Clostridium, Bacteroides, Bifidobacterium, Ruminococcus, Megamonas, and Faecalbacterium were the ones detected with the most frequent variation of their relatives abundance. We also assess the overlap between the different pathologies. This study provides new insights into the complex relationship between the brain and the gut and the implications in neuropsychiatric pathologies. The identification of unique signatures in neuropsychiatric diseases suggests new possibilities in targeted anti or probiotic treatment.
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Affiliation(s)
- Bruno Bonnechère
- REVAL Rehabilitation Research Center, Faculty of Rehabilitation Sciences, Hasselt University, Diepenbeek, Belgium
- Nuffield Department of Population Health, University of Oxford, Oxford, United Kingdom
| | - Najaf Amin
- Nuffield Department of Population Health, University of Oxford, Oxford, United Kingdom
| | - Cornelia van Duijn
- Nuffield Department of Population Health, University of Oxford, Oxford, United Kingdom
- *Correspondence: Cornelia van Duijn,
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50
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Liu P, Gao M, Liu Z, Zhang Y, Tu H, Lei L, Wu P, Zhang A, Yang C, Li G, Sun N, Zhang K. Gut Microbiome Composition Linked to Inflammatory Factors and Cognitive Functions in First-Episode, Drug-Naive Major Depressive Disorder Patients. Front Neurosci 2022; 15:800764. [PMID: 35153660 PMCID: PMC8831735 DOI: 10.3389/fnins.2021.800764] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2021] [Accepted: 12/30/2021] [Indexed: 01/04/2023] Open
Abstract
OBJECTIVE The microbiota-gut-brain axis, especially the inflammatory pathway, may play a critical role in the pathogenesis of cognitive impairment in major depressive disorder (MDD). However, studies on the microbiota-inflammatory-cognitive function axis in MDD are lacking. The aim of the present study was to analyze the gut microbiota composition and explore the correlation between gut microbiota and inflammatory factors, cognitive function in MDD patients. METHOD Study participants included 66 first-episode, drug naïve MDD patients as well as 43 healthy subjects (HCs). The composition of fecal microbiota was evaluated using16S rRNA sequencing and bioinformatics analysis. The cytokines such as hs-CRP, IL-1β, IL-6, IL-10, and TNF-α in peripheral blood were detected via enzyme linked immunosorbent assay (ELISA); assessment of cognitive functions was performed using the Color Trail Test (CTT), The Repeatable Battery for the Assessment of Neuropsychological Status (RBANS) and the Stroop Color-Word Test (SCWT). RESULTS We found that compared with HCs, MDD patients had cognitive impairments and showed different α-diversity and β-diversity of gut microbiota composition. LDA effect size (LEfSe) analysis found MDD have higher Deinococcaceae and lower Bacteroidaceae, Turicibacteraceae, Clostridiaceae and Barnesiellaceae at family level. Deinococcus and Odoribacter was higher in the MDD group, however, Bacteroides, Alistipes, Turicibacter, Clostridium, Roseburia, and Enterobacter were lower at genus level. Furthermore, In MDD patients, the Bacteroidaceae and Bacteroides were both positively correlated with hsCRP, CCT1, CCT2. Alistipes was positively correlated with IL-6, Word time, Color time, Word-Color time, Color-Word time and negatively correlated with Delayed Memory, Total score and Standardized score. Turicibacteraceae and Turicibacter were both negatively correlated with IL-1β and IL-6. CONCLUSION The present findings confirm that the gut microbiota in MDD patients have altered gut microbes that are closely associated with inflammatory factors and cognitive function in MDD patients.
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Affiliation(s)
- Penghong Liu
- First Hospital of Shanxi Medical University, Taiyuan, China
| | - Mingxue Gao
- Department of Psychiatry, First Hospital of Shanxi Medical University, Taiyuan, China
| | - Zhifen Liu
- Department of Psychiatry, First Hospital of Shanxi Medical University, Taiyuan, China
| | - Yanyan Zhang
- Department of Psychiatry, First Hospital of Shanxi Medical University, Taiyuan, China
| | - Hongwei Tu
- Department of Psychiatry, First Hospital of Shanxi Medical University, Taiyuan, China
| | - Lei Lei
- Department of Psychiatry, First Hospital of Shanxi Medical University, Taiyuan, China
| | - Peiyi Wu
- Department of Psychiatry, First Hospital of Shanxi Medical University, Taiyuan, China
| | - Aixia Zhang
- Department of Psychiatry, First Hospital of Shanxi Medical University, Taiyuan, China
| | - Chunxia Yang
- Department of Psychiatry, First Hospital of Shanxi Medical University, Taiyuan, China
| | - Gaizhi Li
- Department of Psychiatry, First Hospital of Shanxi Medical University, Taiyuan, China
| | - Ning Sun
- Department of Psychiatry, First Hospital of Shanxi Medical University, Taiyuan, China
| | - Kerang Zhang
- Department of Psychiatry, First Hospital of Shanxi Medical University, Taiyuan, China
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