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Xie Y, Zhu H, Yuan Y, Guan X, Xie Q, Dong Z. Baseline gut microbiota profiles affect treatment response in patients with depression. Front Microbiol 2024; 15:1429116. [PMID: 39021622 PMCID: PMC11251908 DOI: 10.3389/fmicb.2024.1429116] [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: 05/07/2024] [Accepted: 06/20/2024] [Indexed: 07/20/2024] Open
Abstract
The role of the gut microbiota in the pathophysiology of depression has been explored in numerous studies, which have confirmed that the baseline gut microbial profiles of patients with depression differ from those of healthy individuals. The gut microbiome affects metabolic activity in the immune and central nervous systems and regulates intestinal ecology through the neuroendocrine system. Additionally, baseline changes in the gut microbiota differed among patients with depression who demonstrated varying treatment response. Currently, probiotics are an emerging treatment for depression; however, the efficacy of modulating the gut microbiota in the treatment of depression remains uncertain. Additionally, the mechanisms by which changes in the gut microbiota affect treatment response in patients with depression remain unclear. In this review, we aimed to summarize the differences in the baseline gut microbiota between the remission and non-remission groups after antidepressant therapy. Additionally, we summarized the possible mechanisms that may contribute to antidepressant resistance through the effects of the gut microbiome on the immune and nervous systems, various enzymes, bioaccumulation, and blood-brain barrier, and provide a basis for treating depression by targeting the gut microbiota.
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Affiliation(s)
- Yingjing Xie
- West China Hospital, Sichuan University, Chengdu, China
| | - Hanwen Zhu
- West China Hospital, Sichuan University, Chengdu, China
| | - Yanling Yuan
- Department of Pharmacy, West China Hospital, Sichuan University, Chengdu, China
| | - Xuan Guan
- Chengdu Medical College, Chengdu, China
| | - Qinglian Xie
- Department of Outpatient, West China Hospital, Sichuan University, Chengdu, China
| | - Zaiquan Dong
- Department of Psychiatry and National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, China
- Mental Health Center, West China Hospital, Sichuan University, Chengdu, China
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Zhu Z, Chen Q, Jiang G, Liang Y, Shen J, Wu J. The impact of gut microbial dysbiosis on the atrophy of the hippocampus and abnormal metabolism of N-acetyl aspartate in type 2 diabetic rats. Heliyon 2024; 10:e33152. [PMID: 38994099 PMCID: PMC11238125 DOI: 10.1016/j.heliyon.2024.e33152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2022] [Revised: 06/12/2024] [Accepted: 06/14/2024] [Indexed: 07/13/2024] Open
Abstract
Rationale and objectives This study aimed to investigate the effect of intestinal dysbiosis on the hippocampal volume using proton magnetic resonance spectroscopy (1H-MRS) in a type 2 diabetes mellitus (T2DM) rat model. Materials and methods We established a T2DM animal model with high-fat diet and streptozotocin (HFD/STZ) administration to Sprague-Dawley rats. Short-term ceftriaxone sodium administration was used to establish a T2DM intestinal dysbiosis (T2DM-ID) model. After establishing the model, fecal microbiota were detected using 16S rRNA sequencing. The models were then subjected to magnetic resonance imaging (MRI). Associations between MRI findings and fecal microbiota were evaluated. Results Magnetic resonance imaging (MRI) showed that the bilateral hippocampal voxel value and N-acetylaspartate (NAA) level were lower in the experimental group than in the normal control (NC) group (p < 0.05) and that NAA/creatine in the left hippocampus was lower in the T2DM-ID group than in the NC group (p < 0.05). α and β diversities differed significantly among the three groups (p < 0.05). In the T2DM and T2DM-ID groups, the abundance of bacteria in the phylum Proteobacteria increased significantly, whereas that of bacteria in the phylum Firmicutes decreased. The relative abundance of Actinobacteria was significantly increased in the T2DM-ID group. The Chao1 index (r = 0.33, p < 0.05) and relative abundance of Firmicutes (r = 0.48, p < 0.05) were positively correlated with the left hippocampal voxel, while the relative abundance of Proteobacteria was negatively correlated with the left hippocampal voxel (r = -0.44, p < 0.05). NAA levels, bilateral hippocampal voxels, and the relative abundance of Lactobacillus, Clostridia_UCG_014, and other genera were correlated positively (r = 0.34-0.70, p < 0.05). NAA levels and the relative abundances of Blautia and Enterococcus were correlated negatively (r = -0.32-0.44, p < 0.05). Conclusion The T2DM-ID rat model showed hippocampal volume atrophy and decreased levels of neuronal markers (such as NAA). The abnormal content of specific gut microorganisms may be a key biomarker of T2DM-associated brain damage.
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Affiliation(s)
- Zhenyang Zhu
- Department of Radiology, Panzhihua Central Hospital, Panzhihua, China
| | - Qingqing Chen
- Department of Radiology, Yiwu Central Hospital, Yiwu, China
| | - Gege Jiang
- Department of Radiology, Affiliated Zhongshan Hospital of Dalian University, Dalian, China
| | - Yuan Liang
- Department of Radiology, The Second Affiliated Hospital of Chongqing Medical University, Chongqin, China
| | - Jing Shen
- Department of Radiology, Affiliated Zhongshan Hospital of Dalian University, Dalian, China
| | - Jianlin Wu
- Department of Radiology, Affiliated Zhongshan Hospital of Dalian University, Dalian, China
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Qu Z, Zheng Y, Wu S, Bing Y, Sun Z, Zhu S, Li W, Zou X. Two Omics Methods Expose Anti-Depression Mechanism of Raw and Vinegar-Baked Bupleurum Scorzonerifolium Willd. Chem Biodivers 2024; 21:e202301733. [PMID: 38217462 DOI: 10.1002/cbdv.202301733] [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: 11/08/2023] [Revised: 01/10/2024] [Accepted: 01/12/2024] [Indexed: 01/15/2024]
Abstract
Bupleurum scorzonerifolium willd. (BS) and its vinegar-baked product (VBS) has been frequently utilized for depression management in clinical Chinese medicine. This paper aims to elucidate the antidepressant mechanism of BS and VBS from the perspectives of metabonomics and gut microbiota. A rat model of depression was established by CUMS combined with feeding alone to evaluate the antidepressant effects of BS and VBS. UPLC-Q-TOF-MS/MS-based metabolomics and 16S rRNA sequencing of rat feces were applied and the correlation of differential metabolic markers and intestinal floras was analyzed. The result revealed that BS and VBS significantly improved depression-like behaviors and the levels of monoamine neurotransmitters in CUMS rats. There were 27 differential endogenous metabolites between CUMS and normal rats, which were involved in 8 metabolic pathways. Whereas, BS and VBS could regulate 18 and 20 metabolites respectively, wherein fifteen of them were shared metabolites. On the genus level, BS and VBS could regulate twenty-five kinds of intestinal floras in CUMS rats, that is, they increased the abundance of beneficial bacteria and decreased the abundance of harmful bacteria. In conclusion, both BS and VBS exert excellent antidepressant effects by regulating various metabolic pathways and ameliorating intestinal microflora dysfunction.
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Affiliation(s)
- Zhongyuan Qu
- School of Pharmacy, Harbin University of Commerce, Harbin, 150076, China
| | - Yan Zheng
- School of Pharmacy, Harbin University of Commerce, Harbin, 150076, China
| | - Shuang Wu
- School of Pharmacy, Harbin University of Commerce, Harbin, 150076, China
| | - Yifan Bing
- School of Pharmacy, Harbin University of Commerce, Harbin, 150076, China
| | - Zhiwei Sun
- School of Pharmacy, Harbin University of Commerce, Harbin, 150076, China
| | - Shiru Zhu
- School of Pharmacy, Harbin University of Commerce, Harbin, 150076, China
| | - Wenlan Li
- School of Pharmacy, Harbin University of Commerce, Harbin, 150076, China
- Engineering Research Center on Natural Antineoplastic Drugs, Ministry of Education, Harbin University of Commerce, Ha Er Bin Shi, 150076, China
| | - Xiang Zou
- Engineering Research Center on Natural Antineoplastic Drugs, Ministry of Education, Harbin University of Commerce, Ha Er Bin Shi, 150076, China
- School of Life Sciences, University of Sussex, Brighton BN19RH, UK
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Hu X, Fang Z, Wang F, Mei Z, Huang X, Lin Y, Lin Z. A causal relationship between gut microbiota and subcortical brain structures contributes to the microbiota-gut-brain axis: a Mendelian randomization study. Cereb Cortex 2024; 34:bhae056. [PMID: 38415993 DOI: 10.1093/cercor/bhae056] [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: 12/06/2023] [Revised: 01/27/2024] [Accepted: 01/28/2024] [Indexed: 02/29/2024] Open
Abstract
A correlation between gut microbiota and brain structure, referring to as a component of the gut-brain axis, has been observed in observational studies. However, the causality of this relationship and its specific bacterial taxa remains uncertain. To reveal the causal effects of gut microbiota on subcortical brain volume, we applied Mendelian randomization (MR) studies in this study. Genome-wide association study data were obtained from the MiBioGen Consortium (n = 18,340) and the Enhancing Neuro Imaging Genetics through Meta-Analysis Consortium (n = 13,170). The primary estimate was obtained utilizing the inverse-variance weighted, while heterogeneity and pleiotropy were assessed using the Cochrane Q statistic, MR Pleiotropy RESidual Sum and Outlier, and MR-Egger intercept. Our findings provide strong evidence that a higher abundance of the genus Parasutterella is causally correlated with a decrease in intracranial volume (β = -30,921.33, 95% CI -46,671.78 to -15,170.88, P = 1.19 × 10-4), and the genus FamilyXIIIUCG001 is associated with a decrease in thalamus volume (β = -141.96, 95% CI: -214.81 to -69.12, P = 1.0× 10-4). This MR study offers novel perspectives on the intricate interplay between the gut microbiota and subcortical brain volume, thereby lending some support to the existence of the microbiota-gut-brain axis.
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Affiliation(s)
- Xuequn Hu
- Department of Neurosurgery, National Regional Medical Center, Binhai Campus of the First Affiliated Hospital, Fujian Medical University, 999 Huashan Road, Changle District, Fuzhou 350209, Fujian Province, China
- Department of Neurosurgery, Neurosurgery Research Institute, The First Affiliated Hospital, Fujian Medical University, 20 Chazhong Road, Taijiang District, Fuzhou 350005, Fujian Province, China
| | - Zhiyong Fang
- Department of Neurosurgery, National Regional Medical Center, Binhai Campus of the First Affiliated Hospital, Fujian Medical University, 999 Huashan Road, Changle District, Fuzhou 350209, Fujian Province, China
- Department of Neurosurgery, Neurosurgery Research Institute, The First Affiliated Hospital, Fujian Medical University, 20 Chazhong Road, Taijiang District, Fuzhou 350005, Fujian Province, China
| | - Feng Wang
- Department of Neurosurgery, National Regional Medical Center, Binhai Campus of the First Affiliated Hospital, Fujian Medical University, 999 Huashan Road, Changle District, Fuzhou 350209, Fujian Province, China
- Department of Neurosurgery, Neurosurgery Research Institute, The First Affiliated Hospital, Fujian Medical University, 20 Chazhong Road, Taijiang District, Fuzhou 350005, Fujian Province, China
| | - Zhen Mei
- Department of Neurosurgery, National Regional Medical Center, Binhai Campus of the First Affiliated Hospital, Fujian Medical University, 999 Huashan Road, Changle District, Fuzhou 350209, Fujian Province, China
- Department of Neurosurgery, Neurosurgery Research Institute, The First Affiliated Hospital, Fujian Medical University, 20 Chazhong Road, Taijiang District, Fuzhou 350005, Fujian Province, China
| | - Xiaofen Huang
- Department of Neurosurgery, National Regional Medical Center, Binhai Campus of the First Affiliated Hospital, Fujian Medical University, 999 Huashan Road, Changle District, Fuzhou 350209, Fujian Province, China
- Department of Neurosurgery, Neurosurgery Research Institute, The First Affiliated Hospital, Fujian Medical University, 20 Chazhong Road, Taijiang District, Fuzhou 350005, Fujian Province, China
| | - Yuanxiang Lin
- Department of Neurosurgery, National Regional Medical Center, Binhai Campus of the First Affiliated Hospital, Fujian Medical University, 999 Huashan Road, Changle District, Fuzhou 350209, Fujian Province, China
- Department of Neurosurgery, Neurosurgery Research Institute, The First Affiliated Hospital, Fujian Medical University, 20 Chazhong Road, Taijiang District, Fuzhou 350005, Fujian Province, China
| | - Zhangya Lin
- Department of Neurosurgery, National Regional Medical Center, Binhai Campus of the First Affiliated Hospital, Fujian Medical University, 999 Huashan Road, Changle District, Fuzhou 350209, Fujian Province, China
- Department of Neurosurgery, Neurosurgery Research Institute, The First Affiliated Hospital, Fujian Medical University, 20 Chazhong Road, Taijiang District, Fuzhou 350005, Fujian Province, China
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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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Hung CC, Chao YP, Lee Y, Huang CW, Huang SH, Chang CC, Cheng CH. Cingulate white matter mediates the effects of fecal Ruminococcus on neuropsychiatric symptoms in patients with amyloid-positive amnestic mild cognitive impairment. BMC Geriatr 2023; 23:720. [PMID: 37936084 PMCID: PMC10631051 DOI: 10.1186/s12877-023-04417-9] [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] [Subscribe] [Scholar Register] [Received: 06/13/2023] [Accepted: 10/18/2023] [Indexed: 11/09/2023] Open
Abstract
BACKGROUND Microbiota-gut-brain axis interacts with one another to regulate brain functions. However, whether the impacts of gut dysbiosis on limbic white matter (WM) tracts contribute to the neuropsychiatric symptoms (NPS) in patients with amyloid-positive amnestic mild cognitive impairment (aMCI+), have not been explored yet. This study aimed to investigate the mediation effects of limbic WM integrity on the association between gut microbiota and NPS in patients with aMCI+. METHODS Twenty patients with aMCI + and 20 healthy controls (HCs) were enrolled. All subjects underwent neuropsychological assessments and their microbial compositions were characterized using 16S rRNA Miseq sequencing technique. Amyloid deposition inspected by positron emission tomography imaging and limbic WM tracts (i.e., fornix, cingulum, and uncinate fasciculus) detected by diffusion tensor imaging were additionally measured in patients with aMCI+. We employed a regression-based mediation analysis using Hayes's PROCESS macro in this study. RESULTS The relative abundance of genera Ruminococcus and Lactococcus was significantly decreased in patients with aMCI + versus HCs. The relative abundance of Ruminococcus was negatively correlated with affective symptom cluster in the aMCI + group. Notably, this association was mediated by WM integrity of the left cingulate gyrus. CONCLUSIONS Our findings suggest Ruminococcus as a potential target for the management of affective impairments in patients with aMCI+.
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Affiliation(s)
- Chun-Che Hung
- Department of Occupational Therapy and Graduate Institute of Behavioral Sciences, Chang Gung University, No. 259, Wenhua 1st Road, 333, Taoyuan, Taiwan
- Laboratory of Brain Imaging and Neural Dynamics (BIND Lab), Chang Gung University, Taoyuan, Taiwan
| | - Yi-Ping Chao
- Department of Computer Science and Information Engineering, Chang Gung University, Taoyuan, Taiwan
- Department of Otorhinolaryngology-Head and Neck Surgery, Chang Gung Memorial Hospital, Linkou, Taiwan
| | - Yejin Lee
- Program in Occupational Therapy, Washington University School of Medicine, St. Louis, MO, USA
| | - Chi-Wei Huang
- Department of Neurology, Institute for Translational Research in Biomedicine, Kaohsiung Chang Gung Memorial Hospital, Chang Gung university College of Medicine, No. 123 Ta-Pei Rd., Niau-Sung Dist, 833, Kaohsiung, Taiwan
| | - Shu-Hua Huang
- Department of Nuclear Medicine, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Chiung-Chih Chang
- Department of Neurology, Institute for Translational Research in Biomedicine, Kaohsiung Chang Gung Memorial Hospital, Chang Gung university College of Medicine, No. 123 Ta-Pei Rd., Niau-Sung Dist, 833, Kaohsiung, Taiwan.
| | - Chia-Hsiung Cheng
- Department of Occupational Therapy and Graduate Institute of Behavioral Sciences, Chang Gung University, No. 259, Wenhua 1st Road, 333, Taoyuan, Taiwan.
- Laboratory of Brain Imaging and Neural Dynamics (BIND Lab), Chang Gung University, Taoyuan, Taiwan.
- Healthy Aging Research Center, Chang Gung University, Taoyuan, Taiwan.
- Department of Psychiatry, Chang Gung Memorial Hospital, Linkou, Taiwan.
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Zhao S, Hu S, Sun K, Luo L, Zeng L. Long-term Pu-erh tea consumption improves blue light-induced depression-like behaviors. Food Funct 2023; 14:2313-2325. [PMID: 36779860 DOI: 10.1039/d2fo02780a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Blue light emitted by smartphones and tablets at night increases the risk of depression. Pu-erh tea has been reported to reduce the risk of depression by regulating tryptophan metabolism, but its underlying protective mechanism on depression induced by blue light at night (BLAN) remains unclear. In this work, two groups of C57BL6/J mice were given water or 0.25% (w/v) Pu-erh tea for 120 days, followed by a 45-day BLAN treatment (400 lux blue light between 21:00 and 23:00) to simulate blue light emitted from electronic equipment. Our results indicated that BLAN induced depression-like behaviors and gut microbiota disorders in healthy mice. Pu-erh tea intake significantly reshaped the gut microbiome (especially Bifidobacterium) and regulated the metabolism of short-chain fatty acids (SCFAs) which protected the integrity of the intestinal barrier. This improvement further reduced blood-brain barrier (BBB) damage and alleviated neuroinflammation by inhibiting MyD88/NF-κB pathways which finally regulated neurotransmitters such as brain-derived neurotrophic factor (BDNF) and serotonin (5-hydroxytryptamine, 5-HT). Collectively, 0.25% (w/v) Pu-erh tea has the potential to prevent BLAN-induced depression-like behaviors by reshaping the gut microbiota and increasing the generation of SCFAs via the gut-brain axis.
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Affiliation(s)
- Sibo Zhao
- College of Food Science, Southwest University, Beibei, Chongqing 400715, China.
| | - Shanshan Hu
- College of Food Science, Southwest University, Beibei, Chongqing 400715, China.
| | - Kang Sun
- College of Food Science, Southwest University, Beibei, Chongqing 400715, China.
| | - Liyong Luo
- College of Food Science, Southwest University, Beibei, Chongqing 400715, China.
| | - Liang Zeng
- College of Food Science, Southwest University, Beibei, Chongqing 400715, China.
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Xu F, Xie Q, Kuang W, Dong Z. Interactions Between Antidepressants and Intestinal Microbiota. Neurotherapeutics 2023; 20:359-371. [PMID: 36881351 PMCID: PMC10121977 DOI: 10.1007/s13311-023-01362-8] [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] [Accepted: 02/27/2023] [Indexed: 03/08/2023] Open
Abstract
The microbiota-gut-brain axis has been shown to influence human health and diseases, including depression. The interactions between drugs and intestinal microbiota are complex and highly relevant to treat diseases. Studies have shown an interaction between antidepressants and intestinal microbiota. Antidepressants may alter the abundance and composition of intestinal microbiota, which are closely related to the treatment outcomes of depression. Intestinal microbiota can influence the metabolism of antidepressants to change their availability (e.g., tryptophan can be metabolized to kynurenine by intestinal microbiota) and regulate their absorption by affecting intestinal permeability. In addition, the permeability of the blood-brain barrier can be altered by intestinal microbiota, influencing antidepressants to reach the central nervous system. Bioaccumulation is also a type of drug-microbiota interaction, which means bacteria accumulate drugs without biotransformation. These findings imply that it is important to consider intestinal microbiota when evaluating antidepressant therapy regimens and that intestinal microbiota can be a potential target for depression treatment.
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Affiliation(s)
- Feiyu Xu
- West China School of Medicine, Sichuan University, Chengdu, 610041, China
| | - Qinglian Xie
- Department of Outpatient, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Weihong Kuang
- Mental Health Center of West China Hospital, Sichuan University, Chengdu, 610041, China
- Department of Psychiatry and National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Zaiquan Dong
- Mental Health Center of West China Hospital, Sichuan University, Chengdu, 610041, China.
- Department of Psychiatry and National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, 610041, China.
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Zhao Y, Wu X, Tang M, Shi L, Gong S, Mei X, Zhao Z, He J, Huang L, Cui W. Late-life depression: Epidemiology, phenotype, pathogenesis and treatment before and during the COVID-19 pandemic. Front Psychiatry 2023; 14:1017203. [PMID: 37091719 PMCID: PMC10119596 DOI: 10.3389/fpsyt.2023.1017203] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Accepted: 03/15/2023] [Indexed: 04/25/2023] Open
Abstract
Late-life depression (LLD) is one of the most common mental disorders among the older adults. Population aging, social stress, and the COVID-19 pandemic have significantly affected the emotional health of older adults, resulting in a worldwide prevalence of LLD. The clinical phenotypes between LLD and adult depression differ in terms of symptoms, comorbid physical diseases, and coexisting cognitive impairments. Many pathological factors such as the imbalance of neurotransmitters, a decrease in neurotrophic factors, an increase in β-amyloid production, dysregulation of the hypothalamic-pituitary-adrenal axis, and changes in the gut microbiota, are allegedly associated with the onset of LLD. However, the exact pathogenic mechanism underlying LLD remains unclear. Traditional selective serotonin reuptake inhibitor therapy results in poor responsiveness and side effects during LLD treatment. Neuromodulation therapies and complementary and integrative therapies have been proven safe and effective for the treatment of LLD. Importantly, during the COVID-19 pandemic, modern digital health intervention technologies, including socially assistive robots and app-based interventions, have proven to be advantageous in providing personal services to patients with LLD.
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Affiliation(s)
- Yuanzhi Zhao
- Ningbo Kangning Hospital, Ningbo, Zhejiang, China
| | - Xiangping Wu
- Ningbo Kangning Hospital, Ningbo, Zhejiang, China
| | - Min Tang
- Department of Neurology, Ningbo Rehabilitation Hospital, Ningbo, Zhejiang, China
| | - Lingli Shi
- Ningbo Kangning Hospital, Ningbo, Zhejiang, China
| | - Shuang Gong
- Department of Neurology, Ningbo Rehabilitation Hospital, Ningbo, Zhejiang, China
| | - Xi Mei
- Ningbo Kangning Hospital, Ningbo, Zhejiang, China
| | - Zheng Zhao
- Ningbo Kangning Hospital, Ningbo, Zhejiang, China
| | - Jiayue He
- Ningbo Kangning Hospital, Ningbo, Zhejiang, China
| | - Ling Huang
- Ningbo Kangning Hospital, Ningbo, Zhejiang, China
| | - Wei Cui
- Ningbo Key Laboratory of Behavioral Neuroscience, Zhejiang Provincial Key Laboratory of Pathophysiology, Translational Medicine Center of Pain, Emotion and Cognition, School of Medicine, Ningbo University, Ningbo, Zhejiang, China
- *Correspondence: Wei Cui,
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Dong Z, Xie Q, Xu F, Shen X, Hao Y, Li J, Xu H, Peng Q, Kuang W. Neferine alleviates chronic stress-induced depression by regulating monoamine neurotransmitter secretion and gut microbiota structure. Front Pharmacol 2022; 13:974949. [PMID: 36120376 PMCID: PMC9479079 DOI: 10.3389/fphar.2022.974949] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Accepted: 08/16/2022] [Indexed: 12/05/2022] Open
Abstract
Neferine (Nef) might possess anti-depressive properties; however, its therapeutic effects are yet to be elucidated. Therefore, in this study, we aimed to explore the anti-depressant property of Nef using a mouse model of chronic stress-induced depression. Fifteen depression-prone mice were randomly selected and divided into three groups, namely, the model, Nef, and fluoxetine (Flu) groups. We observed that in tail suspension and forced swimming tests, the Nef and Flu treatments significantly decreased the immobility time of the depressed mice, and increased their sucrose preference indices. Moreover, both Nef and Flu treatments induced significant increases in the levels of anti-depressant neurotransmitters, including dopamine (DA), serotonin (5-HT), and norepinephrine (NE), and also reduced pathological damage to the hippocampus of the depressed mice. Incidentally, Illumina MiSeq sequencing analysis demonstrated that the relative abundance of Lactobacillus in the intestinal microbiota of depressed mice was restored after Nef/Flu treatment. Moreover, colonic Lactobacillus abundance was positively correlated with the levels of DA, 5-HT, and NE in the hippocampus of the mice. In conclusion, Nef improved monoamine neurotransmitter secretion and modulated the intestinal flora structure, particularly the abundance of Lactobacillus. Hence, it showed considerable anti-depressant potential, and might be a prospective anti-depressant therapeutic agent.
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Affiliation(s)
- Zaiquan Dong
- Mental Health Center of West China Hospital, Sichuan University, Chengdu, China
- Department of Psychiatry and National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, China
| | - Qinglian Xie
- Department of Outpatient, West China Hospital, Sichuan University, Chengdu, China
| | - Feiyu Xu
- West China School of Medicine, 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
| | - Qiang Peng
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
- *Correspondence: Qiang Peng, ; Weihong Kuang,
| | - Weihong Kuang
- Mental Health Center of West China Hospital, Sichuan University, Chengdu, China
- Department of Psychiatry and National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, China
- *Correspondence: Qiang Peng, ; Weihong Kuang,
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11
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Tsai CF, Chuang CH, Wang YP, Lin YB, Tu PC, Liu PY, Wu PS, Lin CY, Lu CL. Differences in gut microbiota correlate with symptoms and regional brain volumes in patients with late-life depression. Front Aging Neurosci 2022; 14:885393. [PMID: 35966787 PMCID: PMC9365093 DOI: 10.3389/fnagi.2022.885393] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Accepted: 07/08/2022] [Indexed: 11/13/2022] Open
Abstract
Depression is associated with gut dysbiosis that disrupts a gut-brain bidirectional axis. Gray matter volume changes in cortical and subcortical structures, including prefrontal regions and the hippocampus, have also been noted in depressive disorders. However, the link between gut microbiota and brain structures in depressed patients remains elusive. Neuropsychiatric measures, stool samples, and structural brain images were collected from 36 patients with late-life depression (LLD) and 17 healthy controls. 16S ribosomal RNA (rRNA) gene sequencing was used to profile stool microbial communities for quantitation of microbial composition, abundance, and diversity. T1-weighted brain images were assessed with voxel-based morphometry to detect alterations in gray matter volume between groups. Correlation analysis was performed to identify the possible association between depressive symptoms, brain structures and gut microbiota. We found a significant difference in the gut microbial composition between patients with late-life depression (LLD) and healthy controls. The genera Enterobacter and Burkholderia were positively correlated with depressive symptoms and negatively correlated with brain structural signatures in regions associated with memory, somatosensory integration, and emotional processing/cognition/regulation. Our study purports the microbiota-gut-brain axis as a potential mechanism mediating the symptomatology of LLD patients, which may facilitate the development of therapeutic strategies targeting gut microbes in the treatment of elderly depressed patients.
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Affiliation(s)
- Chia-Fen Tsai
- Faculty of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
- Department of Psychiatry, Taipei Veterans General Hospital, Taipei, Taiwan
| | | | - Yen-Po Wang
- Faculty of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
- Institute of Brain Science, National Yang Ming Chiao Tung University, Taipei, Taiwan
- Endoscopy Center for Diagnosis and Treatment, Taipei Veterans General Hospital, Taipei, Taiwan
- Division of Gastroenterology, Taipei Veterans General Hospital, Taipei, Taiwan
- Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Ya-Bo Lin
- Institute of Information Science, Academia Sinica, Taipei, Taiwan
| | - Pei-Chi Tu
- Department of Psychiatry, Taipei Veterans General Hospital, Taipei, Taiwan
- Institute of Philosophy of Mind and Cognition, National Yang Ming Chiao Tung University, Taipei, Taiwan
- Department of Medical Research, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Pei-Yi Liu
- Institute of Brain Science, National Yang Ming Chiao Tung University, Taipei, Taiwan
- Endoscopy Center for Diagnosis and Treatment, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Po-Shan Wu
- Faculty of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
- Institute of Brain Science, National Yang Ming Chiao Tung University, Taipei, Taiwan
- Department of Dietetics and Nutrition, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Chung-Yen Lin
- Institute of Information Science, Academia Sinica, Taipei, Taiwan
| | - Ching-Liang Lu
- Faculty of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
- Institute of Brain Science, National Yang Ming Chiao Tung University, Taipei, Taiwan
- Endoscopy Center for Diagnosis and Treatment, Taipei Veterans General Hospital, Taipei, Taiwan
- Division of Gastroenterology, Taipei Veterans General Hospital, Taipei, Taiwan
- Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan
- *Correspondence: Ching-Liang Lu ;
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12
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Tung TH, Chen YC, Lin YT, Huang SY. N-3 PUFA Ameliorates the Gut Microbiota, Bile Acid Profiles, and Neuropsychiatric Behaviours in a Rat Model of Geriatric Depression. Biomedicines 2022; 10:biomedicines10071594. [PMID: 35884899 PMCID: PMC9313093 DOI: 10.3390/biomedicines10071594] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Revised: 06/27/2022] [Accepted: 07/03/2022] [Indexed: 11/27/2022] Open
Abstract
The brain−gut−microbiome (BGM) axis affects host bioinformation. N-3 polyunsaturated fatty acids (PUFAs) alleviate cognitive impairment and depression in older adults. This study investigated altered microbiota−bile acid signalling as a potential mechanism linking fish oil-induced gut changes in microbiota to alleviate psychological symptoms. Sprague Dawley rats were fed a fish oil diet and administered D-galactose combined with chronic unpredictable mild stress (CUMS) to simulate geriatric depression. The cognitive function, psychological symptoms, microbiota compositions, and faecal bile acid profiles of the rats were assessed thereafter. A correlation analysis was conducted to determine whether the fish oil-induced alteration of the rats’ microbiota and bile acid profiles affected the rats’ behaviour. D-galactose and CUMS resulted in lower concentrations of Firmicutes, significantly altered bile acid profiles, and abnormal neurobehaviours. Fish oil intake alleviated the rats’ emotional symptoms and increased the abundance of Bacteroidetes, Prevotellaceae, Marinifilaceae, and Bacteroidesuniformis. It also elevated the concentrations of primary bile acids and taurine-conjugated bile acids in the rats’ faeces. The rats’ taurine-conjugated bile acid levels were significantly correlated with their behavioural outcomes. In short, fish oil intake may alleviate psychological symptoms by altering the microbial metabolites involved in the BGM axis, especially in the conjugation of bile acids.
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Affiliation(s)
- Te-Hsuan Tung
- School of Nutrition and Health Sciences, Taipei Medical University, Taipei 110301, Taiwan; (T.-H.T.); (Y.-C.C.)
| | - Yang-Ching Chen
- School of Nutrition and Health Sciences, Taipei Medical University, Taipei 110301, Taiwan; (T.-H.T.); (Y.-C.C.)
- Graduate Institute of Metabolism and Obesity Sciences, Taipei Medical University, Taipei 110301, Taiwan;
- Department of Family Medicine, Taipei Medical University Hospital, Taipei 110301, Taiwan
- Department of Family Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei 110301, Taiwan
| | - Ya-Tin Lin
- Graduate Institute of Metabolism and Obesity Sciences, Taipei Medical University, Taipei 110301, Taiwan;
| | - Shih-Yi Huang
- School of Nutrition and Health Sciences, Taipei Medical University, Taipei 110301, Taiwan; (T.-H.T.); (Y.-C.C.)
- Graduate Institute of Metabolism and Obesity Sciences, Taipei Medical University, Taipei 110301, Taiwan;
- Nutrition Research Center, Taipei Medical University Hospital, Taipei 110301, Taiwan
- Correspondence: ; Tel.: +886-2-27361661 (ext. 6543); Fax: +886-2-27361661
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