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Jiang MZ, Liu C, Xu C, Jiang H, Wang Y, Liu SJ. Gut microbial interactions based on network construction and bacterial pairwise cultivation. SCIENCE CHINA. LIFE SCIENCES 2024; 67:1751-1762. [PMID: 38600293 DOI: 10.1007/s11427-023-2537-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/17/2023] [Accepted: 01/27/2024] [Indexed: 04/12/2024]
Abstract
Association networks are widely applied for the prediction of bacterial interactions in studies of human gut microbiomes. However, the experimental validation of the predicted interactions is challenging due to the complexity of gut microbiomes and the limited number of cultivated bacteria. In this study, we addressed this challenge by integrating in vitro time series network (TSN) associations and co-cultivation of TSN taxon pairs. Fecal samples were collected and used for cultivation and enrichment of gut microbiome on YCFA agar plates for 13 days. Enriched cells were harvested for DNA extraction and metagenomic sequencing. A total of 198 metagenome-assembled genomes (MAGs) were recovered. Temporal dynamics of bacteria growing on the YCFA agar were used to infer microbial association networks. To experimentally validate the interactions of taxon pairs in networks, we selected 24 and 19 bacterial strains from this study and from the previously established human gut microbial biobank, respectively, for pairwise co-cultures. The co-culture experiments revealed that most of the interactions between taxa in networks were identified as neutralism (51.67%), followed by commensalism (21.67%), amensalism (18.33%), competition (5%) and exploitation (3.33%). Genome-centric analysis further revealed that the commensal gut bacteria (helpers and beneficiaries) might interact with each other via the exchanges of amino acids with high biosynthetic costs, short-chain fatty acids, and/or vitamins. We also validated 12 beneficiaries by adding 16 additives into the basic YCFA medium and found that the growth of 66.7% of these strains was significantly promoted. This approach provides new insights into the gut microbiome complexity and microbial interactions in association networks. Our work highlights that the positive relationships in gut microbial communities tend to be overestimated, and that amino acids, short-chain fatty acids, and vitamins are contributed to the positive relationships.
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Affiliation(s)
- Min-Zhi Jiang
- State Key Laboratory of Microbial Technology, Shandong University, Qingdao, 266000, China
| | - Chang Liu
- State Key Laboratory of Microbial Technology, Shandong University, Qingdao, 266000, China
| | - Chang Xu
- State Key Laboratory of Microbial Technology, Shandong University, Qingdao, 266000, China
| | - He Jiang
- State Key Laboratory of Microbial Technology, Shandong University, Qingdao, 266000, China
| | - Yulin Wang
- State Key Laboratory of Microbial Technology, Shandong University, Qingdao, 266000, China.
| | - Shuang-Jiang Liu
- State Key Laboratory of Microbial Technology, Shandong University, Qingdao, 266000, China.
- State Key Laboratory of Microbial Resources, and Environmental Microbiology Research Center (EMRC), Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101, China.
- University of Chinese Academy of Sciences, Beijing, 100049, China.
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Dacomo L, La Vitola P, Brunelli L, Messa L, Micotti E, Artioli L, Sinopoli E, Cecutti G, Leva S, Gagliardi S, Pansarasa O, Carelli S, Guaita A, Pastorelli R, Forloni G, Cereda C, Balducci C. Transcriptomic and metabolomic changes might predict frailty in SAMP8 mice. Aging Cell 2024:e14263. [PMID: 38961613 DOI: 10.1111/acel.14263] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2024] [Revised: 05/21/2024] [Accepted: 06/21/2024] [Indexed: 07/05/2024] Open
Abstract
Frailty is a geriatric, multi-dimensional syndrome that reflects multisystem physiological change and is a transversal measure of reduced resilience to negative events. It is characterized by weakness, frequent falls, cognitive decline, increased hospitalization and dead and represents a risk factor for the development of Alzheimer's disease (AD). The fact that frailty is recognized as a reversible condition encourages the identification of earlier biomarkers to timely predict and prevent its occurrence. SAMP8 (Senescence-Accelerated Mouse Prone-8) mice represent the most appropriate preclinical model to this aim and were used in this study to carry transcriptional and metabolic analyses in the brain and plasma, respectively, upon a characterization at cognitive, motor, structural, and neuropathological level at 2.5, 6, and 9 months of age. At 2.5 months, SAMP8 mice started displaying memory deficits, muscle weakness, and motor impairment. Functional alterations were associated with a neurodevelopmental deficiency associated with reduced neuronal density and glial cell loss. Through transcriptomics, we identified specific genetic signatures well distinguishing SAMP8 mice at 6 months, whereas plasma metabolomics allowed to segregate SAMP8 mice from SAMR1 already at 2.5 months of age by detecting constitutively lower levels of acylcarnitines and lipids in SAMP8 at all ages investigated correlating with functional deficits and neuropathological signs. Our findings suggest that specific genetic alterations at central level, as well as metabolomic changes in plasma, might allow to early assess a frail condition leading to dementia development, which paves the foundation for future investigation in a clinical setting.
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Affiliation(s)
- Letizia Dacomo
- Department of Neuroscience, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Milan, Italy
| | - Pietro La Vitola
- Department of Neuroscience, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Milan, Italy
| | - Laura Brunelli
- Department of Environmental Health Sciences, Laboratory of Metabolites and Proteins in Translational Research, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Milan, Italy
| | - Letizia Messa
- Department of Electronics, Information and Bioengineering (DEIB) Politecnico di Milano, Milan, Italy
- Department of Pediatrics, Center of Functional Genomics and Rare Diseases, Buzzi Children's Hospital, Milan, Italy
| | - Edoardo Micotti
- Department of Neuroscience, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Milan, Italy
| | - Luisa Artioli
- Department of Neuroscience, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Milan, Italy
| | - Elena Sinopoli
- Department of Neuroscience, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Milan, Italy
| | - Greta Cecutti
- Department of Neuroscience, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Milan, Italy
| | - Susanna Leva
- Department of Neuroscience, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Milan, Italy
| | - Stella Gagliardi
- Molecular Biology and Transcriptomics, IRCCS Mondino Foundation, Pavia, Italy
| | - Orietta Pansarasa
- Cellular Model and Neuroepigenetics, IRCCS Mondino Foundation, Pavia, Italy
| | - Stephana Carelli
- Department of Pediatrics, Center of Functional Genomics and Rare Diseases, Buzzi Children's Hospital, Milan, Italy
- Department of Biomedical and Clinical Sciences, Pediatric Clinical Research Center "Romeo Ed Enrica Invernizzi", University of Milan, Milan, Italy
| | | | - Roberta Pastorelli
- Department of Environmental Health Sciences, Laboratory of Metabolites and Proteins in Translational Research, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Milan, Italy
| | - Gianluigi Forloni
- Department of Neuroscience, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Milan, Italy
| | - Cristina Cereda
- Department of Pediatrics, Center of Functional Genomics and Rare Diseases, Buzzi Children's Hospital, Milan, Italy
| | - Claudia Balducci
- Department of Neuroscience, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Milan, Italy
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Xiao-Hang Q, Si-Yue C, Hui-Dong T. Multi-strain probiotics ameliorate Alzheimer's-like cognitive impairment and pathological changes through the AKT/GSK-3β pathway in senescence-accelerated mouse prone 8 mice. Brain Behav Immun 2024; 119:14-27. [PMID: 38548184 DOI: 10.1016/j.bbi.2024.03.031] [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: 07/31/2023] [Revised: 03/13/2024] [Accepted: 03/25/2024] [Indexed: 04/01/2024] Open
Abstract
BACKGROUND Alzheimer's disease (AD), the most prevalent type of dementia, still lacks disease-modifying treatment strategies. Recent evidence indicates that maintaining gut microbiota homeostasis plays a crucial role in AD. Targeted regulation of gut microbiota, including probiotics, is anticipated to emerge as a potential approach for AD treatment. However, the efficacy and mechanism of multi-strain probiotics treatment in AD remain unclear. METHODS In this study, 6-month-old senescence-accelerated-mouse-prone 8 (SAMP8) and senescence-accelerated-mouse-resistant 1 (SAMR1) were utilized. The SAMP8 mice were treated with probiotic-2 (P2, a probiotic mixture of Bifidobacterium lactis and Lactobacillus rhamnosus) and probiotic-3 (P3, a probiotic mixture of Bifidobacterium lactis, Lactobacillus acidophilus, and Lactobacillus rhamnosus) (1 × 109 colony-forming units) once daily for 8 weeks. Morris water maze (MWM) and novel object recognition (NOR) tests were employed to assess the memory ability. 16S sequencing was applied to determine the composition of gut microbiota, along with detecting serum short-chain fatty acids (SCFAs) concentrations. Neural injury, Aβ and Tau pathology, and neuroinflammation level were assessed through western blot and immunofluorescence. Finally, potential molecular mechanisms was explored through transcriptomic analysis and western blotting. RESULTS The MWM and NOR test results indicated a significant improvement in the cognitive level of SAMP8 mice treated with P2 and P3 probiotics compared to the SAMP8 control group. Fecal 16S sequencing revealed an evident difference in the α diversity index between SAMP8 and SAMR1 mice, while the α diversity of SAMP8 mice remained unchanged after P2 and P3 treatment. At the genus level, the relative abundance of ten bacteria differed significantly among the four groups. Multi-strain probiotics treatment could modulate serum SCFAs (valeric acid, isovaleric acid, and hexanoic acid) concentration. Neuropathological results demonstrated a substantial decrease in neural injury, Aβ and Tau pathology and neuroinflammation in the brain of SAMP8 mice treated with P3 and P2. Transcriptomic analysis identified the chemokine signaling pathway as the most significantly enriched signaling pathway between SAMP8 and SAMR1 mice. Western blot test indicated a significant change in the phosphorylation level of downstream AKT/GSK-3β between the SAMP8 and SAMR1 groups, which could be reversed through P2 and P3 treatment. CONCLUSIONS Multi-strain probiotics treatment can ameliorate cognitive impairment and pathological change in SAMP8 mice, including neural damage, Aβ and Tau pathology, and neuroinflammation. This effect is associated with the regulation of the phosphorylation of the AKT/GSK-3β pathway.
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Affiliation(s)
- Qian Xiao-Hang
- Department of Geriatrics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China; Medical Center on Aging of Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China; Department of Neurology and Institute of Neurology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Chen Si-Yue
- Department of Neurology and Institute of Neurology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Tang Hui-Dong
- Department of Geriatrics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China; Medical Center on Aging of Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
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Liu X, Liu Y, Liu J, Zhang H, Shan C, Guo Y, Gong X, Cui M, Li X, Tang M. Correlation between the gut microbiome and neurodegenerative diseases: a review of metagenomics evidence. Neural Regen Res 2024; 19:833-845. [PMID: 37843219 PMCID: PMC10664138 DOI: 10.4103/1673-5374.382223] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2023] [Revised: 04/19/2023] [Accepted: 06/17/2023] [Indexed: 10/17/2023] Open
Abstract
A growing body of evidence suggests that the gut microbiota contributes to the development of neurodegenerative diseases via the microbiota-gut-brain axis. As a contributing factor, microbiota dysbiosis always occurs in pathological changes of neurodegenerative diseases, such as Alzheimer's disease, Parkinson's disease, and amyotrophic lateral sclerosis. High-throughput sequencing technology has helped to reveal that the bidirectional communication between the central nervous system and the enteric nervous system is facilitated by the microbiota's diverse microorganisms, and for both neuroimmune and neuroendocrine systems. Here, we summarize the bioinformatics analysis and wet-biology validation for the gut metagenomics in neurodegenerative diseases, with an emphasis on multi-omics studies and the gut virome. The pathogen-associated signaling biomarkers for identifying brain disorders and potential therapeutic targets are also elucidated. Finally, we discuss the role of diet, prebiotics, probiotics, postbiotics and exercise interventions in remodeling the microbiome and reducing the symptoms of neurodegenerative diseases.
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Affiliation(s)
- Xiaoyan Liu
- School of Life Sciences, Jiangsu University, Zhenjiang, Jiangsu Province, China
| | - Yi Liu
- School of Life Sciences, Jiangsu University, Zhenjiang, Jiangsu Province, China
- Institute of Animal Husbandry, Jiangsu Academy of Agricultural Sciences, Nanjing, Jiangsu Province, China
| | - Junlin Liu
- School of Life Sciences, Jiangsu University, Zhenjiang, Jiangsu Province, China
| | - Hantao Zhang
- School of Life Sciences, Jiangsu University, Zhenjiang, Jiangsu Province, China
| | - Chaofan Shan
- School of Life Sciences, Jiangsu University, Zhenjiang, Jiangsu Province, China
| | - Yinglu Guo
- School of Life Sciences, Jiangsu University, Zhenjiang, Jiangsu Province, China
| | - Xun Gong
- Department of Rheumatology & Immunology, Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu Province, China
| | - Mengmeng Cui
- Department of Neurology, The Second Affiliated Hospital of Shandong First Medical University, Taian, Shandong Province, China
| | - Xiubin Li
- Department of Neurology, The Second Affiliated Hospital of Shandong First Medical University, Taian, Shandong Province, China
| | - Min Tang
- School of Life Sciences, Jiangsu University, Zhenjiang, Jiangsu Province, China
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Nie L, Xiang Q, Lin Y, Xu Y, Wen W, Deng Y, Chen J, Zhu X, Xie L, Wu Z. Correlation between symptoms and cognitive function changes in patients with primary insomnia and pathways in gut microbiota. Biochem Biophys Rep 2024; 37:101629. [PMID: 38298210 PMCID: PMC10828595 DOI: 10.1016/j.bbrep.2023.101629] [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: 10/27/2023] [Revised: 12/21/2023] [Accepted: 12/26/2023] [Indexed: 02/02/2024] Open
Abstract
Background Primary insomnia (PI) refers to syndromes of difficulty falling asleep, poor sleep quality, early awakening, and difficulty falling asleep after waking up. Although there have been numerous studies, the specific etiology and pathogenesis of PI are still misunderstanding. In recent years, the gut microbiota has been proved to be involved in the metabolism of many mental disorders. But the specific mechanisms of its involvement in PI have not been fully elucidated. This study aims to explore the relationship between the gut microbiota and the symptoms, cognitive function changes in PI. Methods In this study, the gut microbiota of PI patients and healthy controls was profiled by performing stool 16s rRNA gene sequencing. The co-occurrence network was constructed by using Weight Gene Co-expression Network Analysis (WGCNA) algorithm. The correlation between gut microbiota associated pathways and traits in PI were predicted. Results WGCNA results demonstrated several Operational Taxonomic Units (OTU) modules are correlated to symptoms. By using PICRUSt2 software, we predicted the Kyoto Encyclopedia of Genes and Genomes (KEGG) pathways of microbiota in modules. For instance, sleep efficiency may be correlated with the presence of Insulin signaling pathway, Flavonoid biosynthesis, Ascorbate and aldarate metabolism, Nitrotoluene degradation, Biotin metabolism, RNA polymerase and Chlorocyclohexane and chlorobenzene degradation. Total sleep time may be correlated with the presence of Tyrosine metabolism, Propanoate metabolism, Carbon fixation pathways in prokaryotes, Carotenoid biosynthesis, Systemic lupus erythematosus, Nitrotoluene degradation and Biosynthesis of unsaturated fatty acids. The severity of insomnia may be correlated with Insulin signaling pathway, Flavonoid biosynthesis, Ascorbate and aldarate metabolism, Nitrotoluene degradation, Biotin metabolism and RNA polymerase. Change of name score in Montreal Cognitive Assessment (MoCA) may be correlated with Tyrosine metabolism, Propanoate metabolism, Carbon fixation pathways in prokaryotes, Carotenoid biosynthesis, Systemic lupus erythematosus, Nitrotoluene degradation, Biosynthesis of unsaturated fatty acids, Apoptosis, Steroid hormone biosynthesis, Geraniol degradation, Protein digestion and absorption and Bisphenol degradation in Gut Microbiota (GM). Conclusion This study revealed the potential relationships between gut microbiota and PI. By using pathway prediction and enrichment analysis, we concluded many metabolic pathways may associated with some important traits of insomnia patients, including sleep efficiency, severe insomnia, total sleep time and change of name score in MoCA. The metabolic pathways include Insulin signaling pathway, Flavonoid biosynthesis, Ascorbate and aldarate metabolism, Nitrotoluene degradation, Biotin metabolism, RNA polymerase and Chlorocyclohexane, chlorobenzene degradation, Tyrosine metabolism, Propanoate metabolism, Carbon fixation pathways in prokaryotes, Carotenoid biosynthesis, Systemic lupus erythematosus, Biosynthesis of unsaturated fatty acids, Apoptosis, Steroid hormone biosynthesis, Geraniol degradation, Protein digestion and absorption and Bisphenol degradation.Our study demonstrated that PI patients demonstrate significant changes in gut microbiota, which will help delineate the relationship between gut microbiota and syndromes of PI.
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Affiliation(s)
- Linghui Nie
- Children's Behavioral Development Rehabilitation Center, The Second People's Hospital of Guangdong Province, Guangzhou, Guangdong, China
| | - Qian Xiang
- College of Traditional Chinese Medicine, Jinan University, Guangzhou, Guangdong, China
| | - Yaqi Lin
- Children's Behavioral Development Rehabilitation Center, The Second People's Hospital of Guangdong Province, Guangzhou, Guangdong, China
| | - Yajing Xu
- Children's Behavioral Development Rehabilitation Center, The Second People's Hospital of Guangdong Province, Guangzhou, Guangdong, China
| | - Wanhua Wen
- Children's Behavioral Development Rehabilitation Center, The Second People's Hospital of Guangdong Province, Guangzhou, Guangdong, China
| | - Yingxing Deng
- Children's Behavioral Development Rehabilitation Center, The Second People's Hospital of Guangdong Province, Guangzhou, Guangdong, China
| | - Jingying Chen
- Children's Behavioral Development Rehabilitation Center, The Second People's Hospital of Guangdong Province, Guangzhou, Guangdong, China
| | - Xiqi Zhu
- Children's Behavioral Development Rehabilitation Center, The Second People's Hospital of Guangdong Province, Guangzhou, Guangdong, China
| | - Linlin Xie
- Encephalopathy and Psychology Department, The Fourth Clinical Medical College of Guangzhou University of Chinese Medicine, Shenzhen Traditional Chinese Medicine Hospital, Shen Zhen, Guangdong, China
| | - Zhiyong Wu
- College of Traditional Chinese Medicine, Southern Medical University, Guangzhou, Guangdong, China
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Wang J, Zhang G, Lai H, Li Z, Shen M, Li C, Kwan P, O'Brien TJ, Wu T, Yang S, Zhang X, Zhang L. Characterizing Gut Microbiota in Older Chinese Adults with Cognitive Impairment: A Cross-Sectional Study. J Alzheimers Dis 2024; 101:761-771. [PMID: 39213074 DOI: 10.3233/jad-240597] [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] [Indexed: 09/04/2024]
Abstract
Background Cognitive impairment is a clinical manifestation that occurs in the course of dementia like Alzheimer's disease. The association between cognitive impairment and gut microbiota is unclear. Objective We aimed to identify gut microbiota characteristics and key gut microbiota biomarkers associated with cognitive impairment in a relatively large cohort of older adults in China. Methods A total of 229 adults aged ≥60 years from Shenzhen, China were recruited into this cross-sectional study. Participants were divided into cognitive impairment (CI) and no cognitive impairment (NCI) groups according to the results of the Mini-Mental State Examination. Diversity analysis and network analysis were used to characterize the gut microbiota between the two groups. The linear discriminant analysis effect size method and machine learning approaches were sequentially performed to identify gut microbiota biomarkers. The relationship between biomarkers and lifestyle factors was explored using Transformation-based redundancy analysis (tb-RDA). Results A total of 74 CI participants and 131 NCI participants were included in the analysis. The CI group demonstrated lower α-diversity compared to the NCI group (Shannon: 2.798 versus 3.152, p < 0.001). The density of the gut microbiota interaction network was lower in the CI group (0.074) compared to the NCI group (0.081). Megamonas, Blautia, Pseudomonas, Stenotrophomonas, and Veillonella were key biomarkers for CI. The tb-RDA revealed that increased fruit intake and exercise contribute to a higher abundance of Megamonas, Blautia, and Veillonella. Conclusions We identified a significantly reduced abundance of certain beneficial gut microbiota in older Chinese adults with cognitive impairment.
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Affiliation(s)
- Jing Wang
- China-Australia Joint Research Centre for Infectious Diseases, School of Public Health, Xi'an Jiaotong University Health Science Centre, Xi'an, Shaanxi, PR China
| | - Gong Zhang
- MOE Key Laboratory of Tumour Molecular Biology and Key Laboratory of Functional Protein Research of Guangdong Higher Education Institutes, Institute of Life and Health Engineering, College of Life Science and Technology, Jinan University, Guangzhou, China
| | - Hao Lai
- China-Australia Joint Research Centre for Infectious Diseases, School of Public Health, Xi'an Jiaotong University Health Science Centre, Xi'an, Shaanxi, PR China
| | - Zengbin Li
- China-Australia Joint Research Centre for Infectious Diseases, School of Public Health, Xi'an Jiaotong University Health Science Centre, Xi'an, Shaanxi, PR China
| | - Mingwang Shen
- China-Australia Joint Research Centre for Infectious Diseases, School of Public Health, Xi'an Jiaotong University Health Science Centre, Xi'an, Shaanxi, PR China
- Key Laboratory for Disease Prevention and Control and Health Promotion of Shaanxi Province, Xi'an, Shaanxi, China
| | - Chao Li
- Department of Epidemiology and Health Statistics, School of Public Health, Xi'an Jiaotong University Health Science Centre, Xi'an, China
| | - Patrick Kwan
- The Department of Neuroscience, The School of Translational Medicine, Faculty of Medicine, Nursing and Health Sciences, Monash University & Alfred Health, Melbourne, Australia
| | - Terence J O'Brien
- The Department of Neuroscience, The School of Translational Medicine, Faculty of Medicine, Nursing and Health Sciences, Monash University & Alfred Health, Melbourne, Australia
| | - Ting Wu
- Department of Neurology, the First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Siyu Yang
- Department of Neurology, the First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Xueli Zhang
- Department of Ophthalmology, Guangdong Eye Institute, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, China
- Medical Research Institute, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, China
| | - Lei Zhang
- China-Australia Joint Research Centre for Infectious Diseases, School of Public Health, Xi'an Jiaotong University Health Science Centre, Xi'an, Shaanxi, PR China
- The Department of Neuroscience, The School of Translational Medicine, Faculty of Medicine, Nursing and Health Sciences, Monash University & Alfred Health, Melbourne, Australia
- Artificial Intelligence and Modelling in Epidemiology Program, Melbourne Sexual Health Centre, Alfred Health, Melbourne, Australia
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Bello-Corral L, Alves-Gomes L, Fernández-Fernández JA, Fernández-García D, Casado-Verdejo I, Sánchez-Valdeón L. Implications of gut and oral microbiota in neuroinflammatory responses in Alzheimer's disease. Life Sci 2023; 333:122132. [PMID: 37793482 DOI: 10.1016/j.lfs.2023.122132] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Revised: 09/26/2023] [Accepted: 09/27/2023] [Indexed: 10/06/2023]
Abstract
A diverse and stable microbiota promotes a healthy state, nevertheless, an imbalance in gut or oral bacterial composition, called dysbiosis, can cause gastrointestinal disorders, systemic inflammatory states and oxidative stress, among others. Recently, gut and oral dysbiosis has been linked to Alzheimer's disease (AD), which is considered the most common form of dementia and a public health priority due to its high prevalence and incidence. The aim of this review is to highlight the implications of gut and oral microbiota in the neuroinflammation characteristic of AD pathology and the subsequent cognitive impairment. It is a systematic review of the current literature obtained by searching the PubMed, Web of Science and Scopus databases. The characteristic intestinal dysbiosis in AD patients leads to increased permeability of the intestinal barrier and activates immune cells in the central nervous system due to translocation of microbiota-derived metabolites and/or bacteria into the circulation leading to increased neuroinflammation and neuronal loss, thus generating the cognitive impairment characteristic of AD. The presence in the central nervous system of Porphyromonas gingivalis can cause an increased neuroinflammation and beta-amyloid peptide accumulation.
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Affiliation(s)
- Laura Bello-Corral
- Health Research Nursing Group (GREIS), University of Leon, 24071, Leon, Spain; Department of Nursing and Physiotherapy, University of Leon, 24071, Leon, Spain
| | | | - Jesús Antonio Fernández-Fernández
- Health Research Nursing Group (GREIS), University of Leon, 24071, Leon, Spain; Department of Nursing and Physiotherapy, University of Leon, 24071, Leon, Spain
| | - Daniel Fernández-García
- Health Research Nursing Group (GREIS), University of Leon, 24071, Leon, Spain; Department of Nursing and Physiotherapy, University of Leon, 24071, Leon, Spain
| | - Inés Casado-Verdejo
- Health Research Nursing Group (GREIS), University of Leon, 24071, Leon, Spain; Department of Nursing and Physiotherapy, University of Leon, 24401, Ponferrada, Spain
| | - Leticia Sánchez-Valdeón
- Health Research Nursing Group (GREIS), University of Leon, 24071, Leon, Spain; Department of Nursing and Physiotherapy, University of Leon, 24071, Leon, Spain.
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Kim EJ, Kim JS, Park SE, Seo SH, Cho KM, Kwon SJ, Lee MH, Kim JH, Son HS. Association between Mild Cognitive Impairment and Gut Microbiota in Elderly Korean Patients. J Microbiol Biotechnol 2023; 33:1376-1383. [PMID: 37463853 PMCID: PMC10619554 DOI: 10.4014/jmb.2305.05009] [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: 05/10/2023] [Revised: 06/02/2023] [Accepted: 06/11/2023] [Indexed: 07/20/2023]
Abstract
Recent studies have confirmed that gut microbiota differs according to race or country in many diseases, including mild cognitive impairment (MCI) and Alzheimer's disease. However, no study has analyzed the characteristics of Korean MCI patients. This study was performed to observe the association between gut microbiota and MCI in the Korean elderly and to identify potential markers for Korean MCI patients. For this purpose, we collected fecal samples from Korean subjects who were divided into an MCI group (n = 40) and control group (n = 40) for 16S rRNA gene amplicon sequencing. Although no significant difference was observed in the overall microbial community profile, the relative abundance of several genera, including Bacteroides, Prevotella, and Akkermansia, showed significant differences between the two groups. In addition, the relative abundance of Prevotella was negatively correlated with that of Bacteroides (r = 0.733). This study may provide Korean-specific basic data for comparing the characteristics of the gut microbiota between Korean and non-Korean MCI patients.
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Affiliation(s)
- Eun-Ju Kim
- Department of Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seoul 02841, Republic of Korea
| | - Jae-Seong Kim
- Department of Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seoul 02841, Republic of Korea
| | - Seong-Eun Park
- Department of Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seoul 02841, Republic of Korea
| | | | | | | | - Mee-Hyun Lee
- College of Korean Medicine, Dongshin University, Naju 58245, Republic of Korea
| | - Jae-Hong Kim
- Department of Acupuncture and Moxibustion Medicine, College of Korean Medicine, Dongshin University, Naju 58245, Republic of Korea
| | - Hong-Seok Son
- Department of Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seoul 02841, Republic of Korea
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Jiang Y, Cui W, Zhang Y, Wang T, Zheng X, Li H, Shang J. FG-4592 relieves diabetic kidney disease severity by influencing metabolic profiles via gut microbiota reconstruction in both human and mouse models. Front Physiol 2023; 14:1195441. [PMID: 37654676 PMCID: PMC10465800 DOI: 10.3389/fphys.2023.1195441] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Accepted: 07/25/2023] [Indexed: 09/02/2023] Open
Abstract
Objective: Diabetic kidney disease (DKD) is one of the most prevalent complications of diabetes mellitus (DM) and is highly associated with devastating outcomes. Hypoxia-inducible factor (HIF), the main transcription factor that regulates cellular responses to hypoxia, plays an important role in regulating erythropoietin (EPO) synthesis. FG-4592 is the HIF stabilizer that is widely used in patients with renal anemia. We investigated the effect of FG-4592 on DKD phenotypes and the pharmacologic mechanism from the perspective of gut microbiota and systemic metabolism. Design: We collected the clinical data of 73 participants, including 40 DKD patients with combined renal anemia treated with FG-4592, and 33 clinical index-matched DKD patients without FG-4592 treatment from The First Affiliated Hospital of Zhengzhou University at the beginning and after a 3-6-month follow-up period. We established DKD mouse models treated by FG-4592 and performed fecal microbiota transplantation from FG-4592-treated DKD mice to investigate the effects of FG-4592 on DKD and to understand this mechanism from a microbial perspective. Untargeted metabolome-microbiome combined analysis was implemented to globally delineate the mechanism of FG-4592 from both microbial and metabolomic aspects. Result: DKD phenotypes significantly improved after 3-6 months of FG-4592 treatment in DKD patients combined with renal anemia, including a decreased level of systolic blood pressure, serum creatinine, and increased estimated glomerular infiltration rate. Such effects were also achieved in the DKD mouse model treated with FG-4592 and can be also induced by FG-4592-influenced gut microbiota. Untargeted plasma metabolomics-gut microbiota analysis showed that FG-4592 dramatically altered both the microbial and metabolic profiles of DKD mice and relieved DKD phenotypes via upregulating beneficial gut microbiota-associated metabolites. Conclusion: FG-4592 can globally relieve the symptoms of DKD patients combined with renal anemia. In the animal experiment, FG-4592 can reconstruct the intestinal microbial profiles of DKD to further upregulate the production of gut-associated beneficial metabolites, subsequently improving DKD phenotypes.
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Affiliation(s)
- Yumin Jiang
- Department of Emergency Intensive Care Unit, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Wen Cui
- Department of Nephrology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
- Zhengzhou University, Zhengzhou, Henan, China
| | - Yiding Zhang
- Department of Nephrology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
- Zhengzhou University, Zhengzhou, Henan, China
| | - Ting Wang
- Department of Nephrology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
- Zhengzhou University, Zhengzhou, Henan, China
| | - Xuejun Zheng
- Department of Nephrology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
- Zhengzhou University, Zhengzhou, Henan, China
| | - Huangmin Li
- Department of Nephrology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
- Zhengzhou University, Zhengzhou, Henan, China
| | - Jin Shang
- Department of Nephrology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
- Zhengzhou University, Zhengzhou, Henan, China
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10
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Benichou Haziot C, Birak KS. Therapeutic Potential of Microbiota Modulation in Alzheimer's Disease: A Review of Preclinical Studies. J Alzheimers Dis Rep 2023; 7:415-431. [PMID: 37220623 PMCID: PMC10200201 DOI: 10.3233/adr-220097] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Accepted: 04/18/2023] [Indexed: 05/25/2023] Open
Abstract
Alzheimer's disease (AD) is the most common neurodegenerative disease, yet it currently lacks effective treatment due to its complex etiology. The pathological changes in AD have been linked to the neurotoxic immune responses following aggregation of Aβ and phosphorylated tau. The gut microbiota (GM) is increasingly studied for modulating neuroinflammation in neurodegenerative diseases and in vivo studies emerge for AD. This critical review selected 7 empirical preclinical studies from 2019 onwards assessing therapy approaches targeting GM modulating microglia neuroinflammation in AD mouse models. Results from probiotics, fecal microbiota transplantation, and drugs were compared and contrasted, including for cognition, neuroinflammation, and toxic aggregation of proteins. Studies consistently reported significant amelioration or prevention of cognitive deficits, decrease in microglial activation, and lower levels of pro-inflammatory cytokines, compared to AD mouse models. However, there were differences across papers for the brain regions affected, and changes in astrocytes were inconsistent. Aβ plaques deposition significantly decreased in all papers, apart from Byur dMar Nyer lNga Ril Bu (BdNlRB) treatment. Tau phosphorylation significantly declined in 5 studies. Effects in microbial diversity following treatment varied across studies. Findings are encouraging regarding the efficacy of study but information on the effect size is limited. Potentially, GM reverses GM derived abnormalities, decreasing neuroinflammation, which reduces AD toxic aggregations of proteins in the brain, resulting in cognitive improvements. Results support the hypothesis of AD being a multifactorial disease and the potential synergies through multi-target approaches. The use of AD mice models limits conclusions around effectiveness, as human translation is challenging.
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Affiliation(s)
- Carla Benichou Haziot
- Institute of Psychiatry, Psychology and Neuroscience, King’s College London, London, UK
| | - Kulbir Singh Birak
- Institute of Psychiatry, Psychology and Neuroscience, King’s College London, London, UK
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11
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Yi X, Huang C, Huang C, Zhao M, Lu Q. Fecal microbiota from MRL/lpr mice exacerbates pristane-induced lupus. Arthritis Res Ther 2023; 25:42. [PMID: 36927795 PMCID: PMC10018936 DOI: 10.1186/s13075-023-03022-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Accepted: 02/28/2023] [Indexed: 03/18/2023] Open
Abstract
BACKGROUND The roles of gut microbiota in the pathogenesis of SLE have been receiving much attention during recent years. However, it remains unknown how fecal microbiota transplantation (FMT) and microbial metabolites affect immune responses and lupus progression. METHODS We transferred fecal microbiota from MRL/lpr (Lpr) mice and MRL/Mpj (Mpj) mice or PBS to pristane-induced lupus mice and observed disease development. We also screened gut microbiota and metabolite spectrums of pristane-induced lupus mice with FMT via 16S rRNA sequencing, metagenomic sequencing, and metabolomics, followed by correlation analysis. RESULTS FMT from MRL/lpr mice promoted the pathogenesis of pristane-induced lupus and affected immune cell profiles in the intestine, particularly the plasma cells. The structure and composition of microbial communities in the gut of the FMT-Lpr mice were different from those of the FMT-Mpj mice and FMT-PBS mice. The abundances of specific microbes such as prevotella taxa were predominantly elevated in the gut microbiome of the FMT-Lpr mice, which were positively associated with functional pathways such as cyanoamino acid metabolism. Differential metabolites such as valine and L-isoleucine were identified with varied abundances among the three groups. The abundance alterations of the prevotella taxa may affect the phenotypic changes such as proteinuria levels in the pristane-induced lupus mice. CONCLUSION These findings further confirm that gut microbiota play an important role in the pathogenesis of lupus. Thus, altering the gut microbiome may provide a novel way to treat lupus.
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Affiliation(s)
- Xiaoqing Yi
- Department of Dermatology, Second Xiangya Hospital, Central South University, Changsha, 410011, China
- Research Unit of Key Technologies of Diagnosis and Treatment for Immune-related Skin Diseases, Chinese Academy of Medical Sciences, Changsha, 410011, China
- Clinical Medical Research Center of Major Skin Diseases and Skin Health of Hunan Province, Changsha, 410011, China
- Hunan Key Laboratory of Medical Epigenomics, Second Xiangya Hospital, , Central South University, Changsha, 410011, China
| | - Cancan Huang
- Department of Dermatology, Second Xiangya Hospital, Central South University, Changsha, 410011, China
- Research Unit of Key Technologies of Diagnosis and Treatment for Immune-related Skin Diseases, Chinese Academy of Medical Sciences, Changsha, 410011, China
- Clinical Medical Research Center of Major Skin Diseases and Skin Health of Hunan Province, Changsha, 410011, China
- Hunan Key Laboratory of Medical Epigenomics, Second Xiangya Hospital, , Central South University, Changsha, 410011, China
| | - Chuyi Huang
- Department of Dermatology, Second Xiangya Hospital, Central South University, Changsha, 410011, China
- Research Unit of Key Technologies of Diagnosis and Treatment for Immune-related Skin Diseases, Chinese Academy of Medical Sciences, Changsha, 410011, China
- Clinical Medical Research Center of Major Skin Diseases and Skin Health of Hunan Province, Changsha, 410011, China
- Hunan Key Laboratory of Medical Epigenomics, Second Xiangya Hospital, , Central South University, Changsha, 410011, China
| | - Ming Zhao
- Department of Dermatology, Second Xiangya Hospital, Central South University, Changsha, 410011, China.
- Research Unit of Key Technologies of Diagnosis and Treatment for Immune-related Skin Diseases, Chinese Academy of Medical Sciences, Changsha, 410011, China.
- Clinical Medical Research Center of Major Skin Diseases and Skin Health of Hunan Province, Changsha, 410011, China.
- Hunan Key Laboratory of Medical Epigenomics, Second Xiangya Hospital, , Central South University, Changsha, 410011, China.
| | - Qianjin Lu
- Hunan Key Laboratory of Medical Epigenomics, Second Xiangya Hospital, , Central South University, Changsha, 410011, China.
- Institute of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing, China.
- Key Laboratory of Basic and Translational Research on Immune-Mediated Skin Diseases, Chinese Academy of Medical Sciences, Nanjing, China.
- Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and STIs, Nanjing, China.
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12
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Ashraf H, Cossu D, Ruberto S, Noli M, Jasemi S, Simula ER, Sechi LA. Latent Potential of Multifunctional Selenium Nanoparticles in Neurological Diseases and Altered Gut Microbiota. MATERIALS (BASEL, SWITZERLAND) 2023; 16:699. [PMID: 36676436 PMCID: PMC9862321 DOI: 10.3390/ma16020699] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Revised: 12/31/2022] [Accepted: 01/06/2023] [Indexed: 06/17/2023]
Abstract
Neurological diseases remain a major concern due to the high world mortality rate and the absence of appropriate therapies to cross the blood-brain barrier (BBB). Therefore, the major focus is on the development of such strategies that not only enhance the efficacy of drugs but also increase their permeability in the BBB. Currently, nano-scale materials seem to be an appropriate approach to treating neurological diseases based on their drug-loading capacity, reduced toxicity, targeted delivery, and enhanced therapeutic effect. Selenium (Se) is an essential micronutrient and has been of remarkable interest owing to its essential role in the physiological activity of the nervous system, i.e., signal transmission, memory, coordination, and locomotor activity. A deficiency of Se leads to various neurological diseases such as Parkinson's disease, epilepsy, and Alzheimer's disease. Therefore, owing to the neuroprotective role of Se (selenium) nanoparticles (SeNPs) are of particular interest to treat neurological diseases. To date, many studies investigate the role of altered microbiota with neurological diseases; thus, the current review focused not only on the recent advancement in the field of nanotechnology, considering SeNPs to cure neurological diseases, but also on investigating the potential role of SeNPs in altered microbiota.
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Affiliation(s)
- Hajra Ashraf
- Department of Biomedical Sciences, University of Sassari, 07100 Sassari, Italy
| | - Davide Cossu
- Department of Biomedical Sciences, University of Sassari, 07100 Sassari, Italy
| | - Stefano Ruberto
- Department of Biomedical Sciences, University of Sassari, 07100 Sassari, Italy
| | - Marta Noli
- Department of Biomedical Sciences, University of Sassari, 07100 Sassari, Italy
| | - Seyedesomaye Jasemi
- Department of Biomedical Sciences, University of Sassari, 07100 Sassari, Italy
| | - Elena Rita Simula
- Department of Biomedical Sciences, University of Sassari, 07100 Sassari, Italy
| | - Leonardo A. Sechi
- Department of Biomedical Sciences, University of Sassari, 07100 Sassari, Italy
- Complex Structure of Microbiology and Virology, AOU Sassari, 07100 Sassari, Italy
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13
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Li Y, Chen Y, Fan Y, Chen Y, Chen Y. Dynamic network modeling of gut microbiota during Alzheimer's disease progression in mice. Gut Microbes 2023; 15:2172672. [PMID: 36724123 PMCID: PMC9897752 DOI: 10.1080/19490976.2023.2172672] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
Abstract
The intimate association between the gut microbiota (GM) and the central nervous system points to potential intervention strategies for neurological diseases. Nevertheless, there is currently no theoretical framework for selecting the window period and target bacteria for GM interventions owing to the complexity of the gut microecosystem. In this study, we constructed a complex network-based modeling approach to evaluate the topological features of the GM and infer the window period and bacterial candidates for GM interventions. We used Alzheimer's disease (AD) as an example and traced the GM dynamic changes in AD and wild-type mice at one, two, three, six, and nine months of age. The results revealed alterations of the topological features of the GM from a scale-free network into a random network during AD progression, indicating severe GM disequilibrium at the late stage of AD. Through stability and vulnerability assessments of the GM networks, we identified the third month after birth as the optimal window period for GM interventions in AD mice. Further computational simulations and robustness evaluations determined that the hub bacteria were potential candidates for GM interventions. Moreover, our GM functional analysis suggested that Lachnospiraceae UCG-001 - the hub and enriched bacterium in AD mice - was the keystone bacterium for GM interventions owing to its contributions to quinolinic acid synthesis. In conclusion, this study established a complex network-based modeling approach as a practical strategy for disease interventions from the perspective of the gut microecosystem.
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Affiliation(s)
- Yinhu Li
- Chinese Academy of Sciences Key Laboratory of Brain Connectome and Manipulation, Shenzhen Key Laboratory of Translational Research for Brain Diseases, 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, China,Guangdong Provincial Key Laboratory of Brain Science, Disease and Drug Development, HKUST Shenzhen Research Institute, Shenzhen, China
| | - Yijing Chen
- Chinese Academy of Sciences Key Laboratory of Brain Connectome and Manipulation, Shenzhen Key Laboratory of Translational Research for Brain Diseases, 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, China,Guangdong Provincial Key Laboratory of Brain Science, Disease and Drug Development, HKUST Shenzhen Research Institute, Shenzhen, China
| | - Yingying Fan
- Chinese Academy of Sciences Key Laboratory of Brain Connectome and Manipulation, Shenzhen Key Laboratory of Translational Research for Brain Diseases, 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, China,Guangdong Provincial Key Laboratory of Brain Science, Disease and Drug Development, HKUST Shenzhen Research Institute, Shenzhen, China
| | - Yuewen Chen
- Chinese Academy of Sciences Key Laboratory of Brain Connectome and Manipulation, Shenzhen Key Laboratory of Translational Research for Brain Diseases, 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, China,Guangdong Provincial Key Laboratory of Brain Science, Disease and Drug Development, HKUST Shenzhen Research Institute, Shenzhen, China
| | - Yu Chen
- Chinese Academy of Sciences Key Laboratory of Brain Connectome and Manipulation, Shenzhen Key Laboratory of Translational Research for Brain Diseases, 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, China,Guangdong Provincial Key Laboratory of Brain Science, Disease and Drug Development, HKUST Shenzhen Research Institute, Shenzhen, China,CONTACT Yu Chen Chinese Academy of Sciences, The Brain Cognition and Brain Disease Institute, Shenzhen Institute of Advanced Technology, Shenzhen, China
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14
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Wiredu Ocansey DK, Hang S, Yuan X, Qian H, Zhou M, Valerie Olovo C, Zhang X, Mao F. The diagnostic and prognostic potential of gut bacteria in inflammatory bowel disease. Gut Microbes 2023; 15:2176118. [PMID: 36794838 PMCID: PMC9980661 DOI: 10.1080/19490976.2023.2176118] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Accepted: 01/26/2023] [Indexed: 02/17/2023] Open
Abstract
The gut microbiome serves as a signaling hub that integrates environmental inputs with genetic and immune signals to influence the host's metabolism and immunity. Gut bacteria are intricately connected with human health and disease state, with specific bacteria species driving the characteristic dysbiosis found in gastrointestinal conditions such as inflammatory bowel disease (IBD); thus, gut bacteria changes could be harnessed to improve IBD diagnosis, prognosis, and treatment. The advancement in next-generation sequencing techniques such as 16S rRNA and whole-genome shotgun sequencing has allowed the exploration of the complexity of the gut microbial ecosystem with high resolution. Current microbiome data is promising and appears to perform better in some studies than the currently used fecal inflammation biomarker, calprotectin, in predicting IBD from healthy controls and irritable bowel syndrome (IBS). This study reviews current data on the differential potential of gut bacteria within IBD cohorts, and between IBD and other gastrointestinal diseases.
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Affiliation(s)
- Dickson Kofi Wiredu Ocansey
- Key Laboratory of Medical Science and Laboratory Medicine of Jiangsu Province, School of Medicine, Jiangsu University, Zhenjiang, P.R. China
- Directorate of University Health Services, University of Cape Coast, PMB, Cape Coast, Ghana
| | - Sanhua Hang
- The People’s Hospital of Danyang, Affiliated Danyang Hospital of Nantong University, Zhenjiang, P.R. China
| | - Xinyi Yuan
- Key Laboratory of Medical Science and Laboratory Medicine of Jiangsu Province, School of Medicine, Jiangsu University, Zhenjiang, P.R. China
| | - Hua Qian
- Affiliated Hospital of Jiangsu University, Jiangsu University, Zhenjiang, P.R. China
| | - Mengjiao Zhou
- Key Laboratory of Medical Science and Laboratory Medicine of Jiangsu Province, School of Medicine, Jiangsu University, Zhenjiang, P.R. China
| | - Chinasa Valerie Olovo
- Key Laboratory of Medical Science and Laboratory Medicine of Jiangsu Province, School of Medicine, Jiangsu University, Zhenjiang, P.R. China
- Department of Microbiology, University of Nigeria, Nsukka, Nigeria
| | - Xu Zhang
- Key Laboratory of Medical Science and Laboratory Medicine of Jiangsu Province, School of Medicine, Jiangsu University, Zhenjiang, P.R. China
| | - Fei Mao
- Key Laboratory of Medical Science and Laboratory Medicine of Jiangsu Province, School of Medicine, Jiangsu University, Zhenjiang, P.R. China
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15
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Zhang Y, Zhou Y, Cui W, Wang Z, Wang X, Wu F, Wang P, Wang T, Yu W, Wang L, Shang J, Zhao Z. Characterization and diagnostic value of the gut microbial composition in patients with minimal change disease. Front Physiol 2022; 13:1070569. [PMID: 36561217 PMCID: PMC9763583 DOI: 10.3389/fphys.2022.1070569] [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: 10/15/2022] [Accepted: 11/22/2022] [Indexed: 12/12/2022] Open
Abstract
Background: Minimal change disease (MCD) is one of the most common causes of primary nephrotic syndrome with high morbidity. This study aimed to explore the typical alterations of gut microbiota in MCD and establish a non-invasive classifier using key gut microbiome. We also aimed to evaluate the therapeutic efficiency of gut microbiota intervention in MCD through animal experiments. Methods: A total of 222 stool samples were collected from MCD patients and healthy controls at the First Affiliated Hospital of Zhengzhou University and Shandong Provincial Hospital for 16S rRNA sequencing. Optimum operational taxonomic units (OTUs) were obtained for constructing a diagnostic model. MCD rat models were established using doxorubicin hydrochloride for exploring the therapeutic efficiency of gut microbial intervention through fecal microbiota transplantation (FMT). Results: The α-diversity of gut microbiota decreased in MCD patients when compared with healthy controls. The relative abundance of bacterial species also changed significantly. We constructed a diagnostic model based on eight optimal OTUs and it achieved efficiency of 97.81% in discovery cohort. The high efficiency of diagnostic model was also validated in the patients with different disease states and cross-regional cohorts. The treatment partially recovered the gut microbial dysbiosis in patients with MCD. In animal experiments, likewise, the gut microbiota changed sharply in MCD rats. However, gut microbial interventions did not reduce urinary protein or pathological kidney damage. Conclusion: Gut Microbiota shifts sharply in both patients and rats with MCD. Typical microbial changes can be used as biomarkers for MCD diagnosis. The gut microbiota compositions in patients with MCD tended to normalize after treatment. However, the intervention of gut microbiota seems to have no therapeutic effect on MCD.
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Affiliation(s)
- Yiding Zhang
- Department of Nephrology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China,School of Medicine, Zhengzhou University, Zhengzhou, Henan, China
| | - Yukun Zhou
- Department of Nephrology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China,School of Medicine, Zhengzhou University, Zhengzhou, Henan, China
| | - Wen Cui
- Department of Nephrology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China,School of Medicine, Zhengzhou University, Zhengzhou, Henan, China
| | - Zhihui Wang
- Department of Nephrology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China,School of Medicine, Zhengzhou University, Zhengzhou, Henan, China
| | - Xuemei Wang
- Department of Infectious Diseases, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Feng Wu
- Department of Nephrology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China,School of Medicine, Zhengzhou University, Zhengzhou, Henan, China
| | - Peipei Wang
- Department of Nephrology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China,School of Medicine, Zhengzhou University, Zhengzhou, Henan, China
| | - Ting Wang
- Department of Nephrology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China,School of Medicine, Zhengzhou University, Zhengzhou, Henan, China
| | - Wei Yu
- Department of Nephrology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China,School of Medicine, Zhengzhou University, Zhengzhou, Henan, China
| | - Li Wang
- Biobank of The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Jin Shang
- Department of Nephrology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China,School of Medicine, Zhengzhou University, Zhengzhou, Henan, China,Laboratory Animal Platform of Academy of Medical Sciences, Zhengzhou University, Zhengzhou, Henan, China,Laboratory of Nephrology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China,*Correspondence: Zhanzheng Zhao, ; Jin Shang,
| | - Zhanzheng Zhao
- Department of Nephrology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China,School of Medicine, Zhengzhou University, Zhengzhou, Henan, China,Laboratory Animal Platform of Academy of Medical Sciences, Zhengzhou University, Zhengzhou, Henan, China,Laboratory of Nephrology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China,*Correspondence: Zhanzheng Zhao, ; Jin Shang,
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16
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Cheng X, Tan Y, Li H, Huang J, Zhao D, Zhang Z, Yi M, Zhu L, Hui S, Yang J, Peng W. Fecal 16S rRNA sequencing and multi-compartment metabolomics revealed gut microbiota and metabolites interactions in APP/PS1 mice. Comput Biol Med 2022; 151:106312. [PMID: 36417828 DOI: 10.1016/j.compbiomed.2022.106312] [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: 09/13/2022] [Revised: 10/27/2022] [Accepted: 11/13/2022] [Indexed: 11/18/2022]
Abstract
BACKGROUND Alzheimer's disease is a significant public health issue. Recent studies have shown that the gut microbiota plays a vital role in the onset and development of Alzheimer's disease. However, the potential role of the gut microbiota and the associated metabolic characteristics require further elucidation. METHODS The gut microbial compositions of APP/PS1 mice were analyzed using 16S rRNA gene sequencing. Metabolomics was used to characterize changes in metabolic profiles in feces, serum, and cortex. A multi-omics approach investigated the potential associations between gut microbes and metabolites. RESULTS The gut microbiota composition was markedly different between APP/PS1 mice and normal mice. Metabolomic analysis identified 253 fecal metabolites, 16 serum metabolites, and 123 cortical metabolites that were differentially abundant in APP/PS1 that may be potential biomarkers of AD. Nearly half of these metabolites were lipids. A combined analysis of the three sample types showed a correlation between fecal fatty acids and glycerolipids, serum glycerophospholipids, and cortical fatty acids. Furthermore, our study showed that Marinifilaceae and Akkermansiaceae were closely related to these lipids and lipid-like molecules, particularly fatty acids and glycerophospholipids. CONCLUSION Our study highlighted the interactions between the gut microbiome and the fecal, serum, and cortical metabolomes. This interaction provides a new direction for further exploring the link between gut microbiota composition and metabolism in Alzheimer's disease.
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Affiliation(s)
- Xin Cheng
- Department of Integrated Traditional Chinese & Western Medicine, The Second Xiangya Hospital, Central South University, Changsha, 410011, China; National Clinical Research Center for Mental Disorder, Changsha, 410011, China
| | - Yejun Tan
- School of Mathematics, University of Minnesota Twin Cities, Minneapolis, 55455, MN, USA
| | - Hongli Li
- Department of Integrated Traditional Chinese & Western Medicine, The Second Xiangya Hospital, Central South University, Changsha, 410011, China; National Clinical Research Center for Mental Disorder, Changsha, 410011, China
| | - Jianhua Huang
- Hunan Academy of Chinese Medicine, Changsha, 410013, China
| | - Di Zhao
- Hunan Academy of Chinese Medicine, Changsha, 410013, China
| | - Zheyu Zhang
- Department of Integrated Traditional Chinese & Western Medicine, The Second Xiangya Hospital, Central South University, Changsha, 410011, China; National Clinical Research Center for Mental Disorder, Changsha, 410011, China
| | - Min Yi
- Department of Integrated Traditional Chinese & Western Medicine, The Second Xiangya Hospital, Central South University, Changsha, 410011, China; National Clinical Research Center for Mental Disorder, Changsha, 410011, China
| | - Lemei Zhu
- Academician Workstation, Changsha Medical University, Changsha, 410219, China
| | - Shan Hui
- Department of Geratology, Hunan Provincial People's Hospital, The First Affiliated Hospital of Hunan Normal University, Changsha, 410005, China
| | - Jingjing Yang
- Teaching and Research Section of Clinical Nursing, Xiangya Hospital, Central South University, Changsha, 410008, China
| | - Weijun Peng
- Department of Integrated Traditional Chinese & Western Medicine, The Second Xiangya Hospital, Central South University, Changsha, 410011, China; National Clinical Research Center for Mental Disorder, Changsha, 410011, China.
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17
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Bonnechère B, Amin N, van Duijn C. What Are the Key Gut Microbiota Involved in Neurological Diseases? A Systematic Review. Int J Mol Sci 2022; 23:ijms232213665. [PMID: 36430144 PMCID: PMC9696257 DOI: 10.3390/ijms232213665] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Revised: 11/02/2022] [Accepted: 11/03/2022] [Indexed: 11/09/2022] Open
Abstract
There is a growing body of evidence highlighting there are significant changes in the gut microbiota composition and relative abundance in various neurological disorders. We performed a systematic review of the different microbiota altered in a wide range of neurological disorders (Alzheimer's disease (AD), Parkinson's disease (PD), multiple sclerosis (MS), amyotrophic lateral sclerosis, and stroke). Fifty-two studies were included representing 5496 patients. At the genus level, the most frequently involved microbiota are Akkermansia, Faecalibacterium, and Prevotella. The overlap between the pathologies was strongest for MS and PD, sharing eight genera (Akkermansia, Butyricicoccus, Bifidobacterium, Coprococcus, Dorea, Faecalibacterium, Parabacteroides, and Prevotella) and PD and stroke, sharing six genera (Enterococcus, Faecalibacterium, Lactobacillus, Parabacteroides, Prevotella, and Roseburia). The identification signatures overlapping for AD, PD, and MS raise the question of whether these reflect a common etiology or rather common consequence of these diseases. The interpretation is hampered by the low number and low power for AD, ALS, and stroke with ample opportunity for false positive and false negative findings.
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Affiliation(s)
- Bruno Bonnechère
- REVAL Rehabilitation Research Center, Faculty of Rehabilitation Sciences, Hasselt University, 3590 Diepenbeek, Belgium
- Nuffield Department of Population Health, University of Oxford, Oxford OX3 7LF, UK
| | - Najaf Amin
- Nuffield Department of Population Health, University of Oxford, Oxford OX3 7LF, UK
| | - Cornelia van Duijn
- Nuffield Department of Population Health, University of Oxford, Oxford OX3 7LF, UK
- Correspondence:
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18
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Autologous Bioactive Compound Concentrated Growth Factor Ameliorates Fistula Healing of Anal Fistula in a Pig Model and Promotes Proliferation and Migration of Human Skin Fibroblasts via Regulating the MEK/ERK Pathway. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2022; 2022:7660118. [PMID: 36281422 PMCID: PMC9587676 DOI: 10.1155/2022/7660118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Revised: 08/20/2022] [Accepted: 08/23/2022] [Indexed: 11/18/2022]
Abstract
Recent evidence suggested that autologous concentrated growth factor (CGF), a new bioactive compound from autologous blood is used widely as an ingenious biomaterial in tissue regeneration with anti-inflammatory properties. This study investigated whether CGF could be involved in the treatment of fistula healing in the anal fistula. For this purpose, the porcine anal fistula model was conducted using the rubber band ligation method and collected pig autogenic CGF to treat the fistulas. CGF treatment promoted fistula healing, which was reflected in the downregulation of inflammatory factors, upregulation of growth factors, and promoted epithelial-mesenchymal transition with increased collagen synthesis. Besides, 16S rRNA gene sequencing analysis of fistula tissues between the control and CGF groups showed that the microbial populations exhibiting significant differences were VadinCA02, Blastomonas, Deinococcus, Devosia, Sphingomonas, Rubrobacteria, and GW_34. CGF of volunteers were collected to process small interfering RNA- (siRNA-) ERK or siRNA-negative control transfected human skin fibroblasts (HSF). The results showed that CGF also promoted the proliferation and extracellular matrix-related functions in HSF, as well as activated the MEK/ERK pathway in vitro and in vivo. Finally, knockdown ERK reversed the effects of CGF in promoting wound healing in HSF. Collectively, our results suggest that the CGF as the bioactive compound from autologous blood exhibited great potential for repairing fistulas as well as promoting the proliferation and migration of human skin fibroblasts by triggering MEK/ERK signaling. These findings provided a fresh perspective for understanding the role of CGF in the management of fistulas.
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Yan C, Diao Q, Zhao Y, Zhang C, He X, Huang R, Li Y. Fusobacterium nucleatum infection-induced neurodegeneration and abnormal gut microbiota composition in Alzheimer’s disease-like rats. Front Neurosci 2022; 16:884543. [PMID: 36188448 PMCID: PMC9523129 DOI: 10.3389/fnins.2022.884543] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2022] [Accepted: 07/28/2022] [Indexed: 11/13/2022] Open
Abstract
Objective To explore whether Fusobacterium nucleatum could lead to behavioral and pathological changes in Alzheimer’s disease (AD)-like model rat and whether they could affect the gut microbiota. Methods The cognitive ability and alveolar bone loss of Sprague-Dawley (SD) rats were tested by Morris water maze and Micro-CT, respectively. HE staining and immunohistochemistry were used to analyze the pathological changes and Aβ1–42 in brains. Western blot was applied to detect the expression of p-Tau 181 in the brain. Limulus amebocyte lysate assay and PCR were performed to determine serum LPS level and whether F. nucleatum accessed the brain, respectively. The gut microbiota was analyzed by the 16S rRNA gene sequence. Results Oral infection with F. nucleatum could induce increased alveolar bone loss and learning impairment in AD-like rats. Additionally, F. nucleatum exposure increased the Aβ1–42 expression by about one-fourth (P < 0.05), p-Tau181 by about one-third (P < 0.05), and serum LPS (P < 0.05) in AD-like rats. Moreover, F. nucleatum could change the gut microflora composition in AD-like rats, accompanied by a significant increase in the abundance of Streptococcus and Prevotella. Conclusion Oral infection with F. nucleatum could contribute to abnormalities in cognitive ability and pathological change in the brain of AD-like rats, which may be related to abnormal gut microbiota composition.
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Affiliation(s)
- Caixia Yan
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, National Clinical Research Center for Oral Diseases, Sichuan University, Chengdu, China
| | - Qilin Diao
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, National Clinical Research Center for Oral Diseases, Sichuan University, Chengdu, China
| | - Yuxi Zhao
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, National Clinical Research Center for Oral Diseases, Sichuan University, Chengdu, China
| | - Cheng Zhang
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, National Clinical Research Center for Oral Diseases, Sichuan University, Chengdu, China
| | - Xiaoya He
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, National Clinical Research Center for Oral Diseases, Sichuan University, Chengdu, China
| | - Ruijie Huang
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, National Clinical Research Center for Oral Diseases, Sichuan University, Chengdu, China
- Department of Pediatric Dentistry, State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, National Clinical Research Center for Oral Diseases, Sichuan University, Chengdu, China
| | - Yan Li
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, National Clinical Research Center for Oral Diseases, Sichuan University, Chengdu, China
- *Correspondence: Yan Li,
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20
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Thu Thuy Nguyen V, Endres K. Targeting gut microbiota to alleviate neuroinflammation in Alzheimer's disease. Adv Drug Deliv Rev 2022; 188:114418. [PMID: 35787390 DOI: 10.1016/j.addr.2022.114418] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Revised: 06/27/2022] [Accepted: 06/28/2022] [Indexed: 02/08/2023]
Abstract
The gut microbiota came into focus within the last years regarding being associated with or even underlying neuropsychiatric diseases. The existence of the gut-brain-axis makes it highly plausible that bacterial metabolites or toxins that escape the intestinal environment or approach the vagal connections towards the brain, exert devastating effects on the central nervous system. In Alzheimer's disease (AD), growing evidence for dysbiotic changes in the gut microbiota is obtained, even though the question for cause or consequence remains open. Nevertheless, using modulation of microbiota to address inflammatory processes seems an attractive therapeutic approach as certain microbial products such as short chain fatty acids have been proven to exert beneficial cognitive effects. In this review, we summarize, contemporary knowledge on neuroinflammation and inflammatory processes within the brain and even more detailed in the gut in AD, try to conclude whom to target regarding human microbial commensals and report on current interventional trials.
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Affiliation(s)
- Vu Thu Thuy Nguyen
- Department of Psychiatry and Psychotherapy, University Medical Center Mainz, Johannes Gutenberg-University Mainz, Germany
| | - Kristina Endres
- Department of Psychiatry and Psychotherapy, University Medical Center Mainz, Johannes Gutenberg-University Mainz, Germany.
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21
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Biological Potential, Gastrointestinal Digestion, Absorption, and Bioavailability of Algae-Derived Compounds with Neuroprotective Activity: A Comprehensive Review. Mar Drugs 2022; 20:md20060362. [PMID: 35736165 PMCID: PMC9227170 DOI: 10.3390/md20060362] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Revised: 05/23/2022] [Accepted: 05/24/2022] [Indexed: 12/04/2022] Open
Abstract
Currently, there is no known cure for neurodegenerative disease. However, the available therapies aim to manage some of the symptoms of the disease. Human neurodegenerative diseases are a heterogeneous group of illnesses characterized by progressive loss of neuronal cells and nervous system dysfunction related to several mechanisms such as protein aggregation, neuroinflammation, oxidative stress, and neurotransmission dysfunction. Neuroprotective compounds are essential in the prevention and management of neurodegenerative diseases. This review will focus on the neurodegeneration mechanisms and the compounds (proteins, polyunsaturated fatty acids (PUFAs), polysaccharides, carotenoids, phycobiliproteins, phenolic compounds, among others) present in seaweeds that have shown in vivo and in vitro neuroprotective activity. Additionally, it will cover the recent findings on the neuroprotective effects of bioactive compounds from macroalgae, with a focus on their biological potential and possible mechanism of action, including microbiota modulation. Furthermore, gastrointestinal digestion, absorption, and bioavailability will be discussed. Moreover, the clinical trials using seaweed-based drugs or extracts to treat neurodegenerative disorders will be presented, showing the real potential and limitations that a specific metabolite or extract may have as a new therapeutic agent considering the recent approval of a seaweed-based drug to treat Alzheimer’s disease.
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22
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Goldsmith R, Aburahma A, Pachhain S, Choudhury SR, Phuntumart V, Larsen R, Ward CS, Sprague JE. Reversal of temperature responses to methylone mediated through bi-directional fecal microbiota transplantation between hyperthermic tolerant and naïve rats. Temperature (Austin) 2022; 9:318-330. [PMID: 36339093 PMCID: PMC9629120 DOI: 10.1080/23328940.2022.2069965] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
The synthetic cathinone ("bath salt") methylone induces a hyperthermia response and with chronic administration tolerance to this hyperthermia has been reported. The microbiome-gut-brain axis has been implicated in multiple bodily systems and pathologies, and intentional manipulation of the gut-microbiome has yielded clinically significant results. Here, we examined the effects of bi-directional Fecal Microbiota Transplantation (FMT) between methylone-induced hyperthermic tolerant (MHT) and methylone-naïve (MN) rats. Rats treated with methylone once per week developed tolerance to methylone-induced hyperthermia by the fourth week. Once tolerant, daily bi-directional FMT between the two groups were performed for seven days prior to the next methylone treatment. The FMT abated the developed tolerance in the MHT group. When treated with methylone for the first time following FMT, recipient MN rats displayed significant tolerance to hyperthermia despite it being their initial drug treatment. Post-FMT, MHT rats displayed elevations in norepinephrine and expression of UCP1, UCP3 and TGR5 in brown adipose tissue, with reductions in expression of TGR5 and UCP3 in skeletal muscle. The pre- and post-FMT methylone tolerance phenotypes of transplant recipients are concurrent with changes in the relative abundance of several classes of Proteobacteria, most evident for Gammaproteobacteria and Alphaproteobacteria. MHT recipients demonstrated a marked increase in the relative proportion of the Firmicutes class Erysipelotrichia. These findings suggest that transplantation of gut-microbiomes can confer phenotypic responses to a drug and that the microbiome may be playing a major role in sympathomimetic-mediated hyperthermia. Abbreviations: 3,4-methylenedioxymethamphetamine (MDMA); methylone-induced hyperthermic tolerant (MHT); methylone-naïve (MN); fecal microbiota transplantation (FMT); uncoupling protein (UCP); subcutaneous (sc); intraperitoneal (ip); brown adipose tissue (BAT); skeletal muscle (SKM); sympathetic nervous system (SNS); norepinephrine (NE); quantitative PCR (qRT-PCR); quantification cycle (Cq); High Performance Liquid Chromatography-Electrochemical Detection (HPLC-EC); amplicon sequence variants (ASVs); principal coordinates analysis (PCoA); permutational multivariate analysis (PERMANOVA).
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Affiliation(s)
- Robert Goldsmith
- The Ohio Attorney General’s Center for the Future of Forensic Science, Bowling Green State University, Bowling Green, OH, USA
| | - Amal Aburahma
- The Ohio Attorney General’s Center for the Future of Forensic Science, Bowling Green State University, Bowling Green, OH, USA
| | - Sudhan Pachhain
- The Department of Biological Sciences, Bowling Green State University, Bowling Green, OH, USA
| | - Sayantan Roy Choudhury
- The Department of Biological Sciences, Bowling Green State University, Bowling Green, OH, USA
| | - Vipa Phuntumart
- The Department of Biological Sciences, Bowling Green State University, Bowling Green, OH, USA
| | - Ray Larsen
- The Department of Biological Sciences, Bowling Green State University, Bowling Green, OH, USA
| | - Christopher S. Ward
- The Department of Biological Sciences, Bowling Green State University, Bowling Green, OH, USA
| | - Jon E. Sprague
- The Ohio Attorney General’s Center for the Future of Forensic Science, Bowling Green State University, Bowling Green, OH, USA
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Hao Z, Tao K, Wu K, Luo Y, Lu Y, Li B, Shi P, Wang P, Zeng X, Lin Y. Alterations of gut microbiome and metabolite profiles in choledocholithiasis concurrent with cholangitis. Hepatol Int 2022; 16:447-462. [PMID: 34313944 DOI: 10.1007/s12072-021-10231-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/14/2021] [Accepted: 07/01/2021] [Indexed: 12/15/2022]
Abstract
BACKGROUND AND AIMS Gut microbiota and their metabolic products might play important roles in regulating the pathogenesis of choledocholithiasis concurrent with cholangitis (CC). The aim of this study was to explore the characteristic gut dysbiosis, metabolite profiles and the possible roles in patients with CC. METHODS A case-control study was carried out to analyze the alterations in the intestinal microbiota and their metabolites in patients with CC (n = 25) compared with healthy controls (HCs) (n = 25) by metagenomic sequencing to define the gut microbiota community and liquid chromatography/mass spectrometry (LC/MS) analysis to characterize the metabolite profiles. RESULTS Significantly reduced Shannon diversity index (p = 0.043) and differential overall fecal microbiota community in CCs were observed. Twelve dominant altered species were identified and analyzed (LDA score > 3.0, p < 0.05) (Q value < 0.05), including unclassified_f_Enterobacteriaceae, Escherichia_coli, Roseburia_faecis and Eubacterium rectale. Moreover, the levels of KEGG pathways related to biofilm formation of Escherichia coli, lipopolysaccharide (LPS) biosynthesis, and the metabolism of propanoate and glutathione in CCs were significantly altered. Finally, 47 markedly changed metabolites (VIP > 1.0 and p < 0.05), including low level of kynurenic acid (KYNA) and high concentration of N-palmitoylsphingosine involving tryptophan metabolism and sphingolipid signaling pathways, were identified to validate aberrant metabolic patterns in CCs, and multiple correlated metabolic modules involving bile inflammation were altered in CCs. CONCLUSION Our study provides novel insights into compositional and functional alterations in the gut microbiome and metabolite profiles in CC and the underlying mechanisms between gut microbiota and bile inflammation.
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Affiliation(s)
- Zhiyuan Hao
- Department of Gastroenterology, Shanghai Changzheng Hospital, Navy Military Medical University, Shanghai, 200003, China
| | - Kegong Tao
- Department of Gastroenterology, Shanghai Changzheng Hospital, Navy Military Medical University, Shanghai, 200003, China
| | - Kaiming Wu
- Department of Gastroenterology, Shanghai Changzheng Hospital, Navy Military Medical University, Shanghai, 200003, China
| | - Yuanyuan Luo
- Department of Gastroenterology, Shanghai East Hospital, Tongji University School of Medicine, 150 Jimo Road, Shanghai, 200120, China
| | - Yiting Lu
- Department of Gastroenterology, Shanghai East Hospital, Tongji University School of Medicine, 150 Jimo Road, Shanghai, 200120, China
| | - Binbin Li
- Department of Pathology, Shanghai Changzheng Hospital, Navy Military Medical University, Shanghai, 200003, China
| | - Peimei Shi
- Department of Gastroenterology, Shanghai Changzheng Hospital, Navy Military Medical University, Shanghai, 200003, China
| | - Peiqin Wang
- Department of Gastroenterology, Shanghai Changzheng Hospital, Navy Military Medical University, Shanghai, 200003, China
| | - Xin Zeng
- Department of Gastroenterology, Shanghai East Hospital, Tongji University School of Medicine, 150 Jimo Road, Shanghai, 200120, China.
- Department of Gastroenterology, Shanghai Changzheng Hospital, Navy Military Medical University, 415 Fengyang Road, Shanghai, 200003, China.
| | - Yong Lin
- Department of Gastroenterology, Shanghai Changzheng Hospital, Navy Military Medical University, Shanghai, 200003, China.
- Department of Gastroenterology, Shanghai Changzheng Hospital, Navy Military Medical University, 415 Fengyang Road, Shanghai, 200003, China.
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Huang J, Wei S, Jiang C, Xiao Z, Liu J, Peng W, Zhang B, Li W. Involvement of Abnormal Gut Microbiota Composition and Function in Doxorubicin-Induced Cardiotoxicity. Front Cell Infect Microbiol 2022; 12:808837. [PMID: 35281446 PMCID: PMC8913537 DOI: 10.3389/fcimb.2022.808837] [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: 11/04/2021] [Accepted: 02/01/2022] [Indexed: 11/18/2022] Open
Abstract
Objectives Doxorubicin (Dox), a chemotherapeutic anthracycline agent for the treatment of a variety of malignancies, has a limitation in clinical application for dose-dependent cardiotoxicity. The purpose of this study was to explore the relationship between the composition/function of the gut microbiota and Dox-induced cardiotoxicity (DIC). Methods C57BL/6J mice were injected intraperitoneally with 15 mg/kg of Dox, with or without antibiotics (Abs) administration. The M-mode echocardiograms were performed to assess cardiac function. The histopathological analysis was conducted by H&E staining and TUNEL kit assay. The serum levels of creatine kinase (CK), CK-MB (CK-MB), lactic dehydrogenase (LDH), and cardiac troponin T (cTnT) were analyzed by an automatic biochemical analyzer. 16S rRNA gene and metagenomic sequencing of fecal samples were used to explore the gut microbiota composition and function. Key Findings Dox caused left ventricular (LV) dilation and reduced LV contractility. The levels of cardiomyocyte apoptosis and myocardial enzymes were elevated in Dox-treated mice compared with the control (Con) group. 16S rRNA gene sequencing results revealed significant differences in microbial composition between the two groups. In the Dox group, the relative abundances of Allobaculum, Muribaculum, and Lachnoclostridium were significantly decreased, whereas Faecalibaculum, Dubosiella, and Lachnospiraceae were significantly increased compared with the Con group at the genus level. Functional enrichment with Cluster of orthologous groups of proteins (COG) and Kyoto Encyclopedia of Genes and Genomes (KEGG) analyses showed that the Dox mice displayed different clusters of cellular processes and metabolism from the Con mice. The different species and their functions between the two groups were associated with the clinical factors of cardiac enzymes. Moreover, depletion of the gut microbiota could alleviate Dox-induced myocardial injury and cardiomyocyte apoptosis. Conclusions The study here shows that composition imbalance and functional changes of the gut microbiota can be one of the etiological mechanisms underlying DIC. The gut microbiota may serve as new targets for the treatment of cardiotoxicity and cardiovascular diseases.
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Affiliation(s)
- Jie Huang
- Department of Pharmacy, The Second Xiangya Hospital, Central South University, Changsha, China
- Institute of Clinical Pharmacy, Central South University, Changsha, China
| | - Shanshan Wei
- Department of Pharmacy, The Second Xiangya Hospital, Central South University, Changsha, China
- Institute of Clinical Pharmacy, Central South University, Changsha, China
| | - Chuanhao Jiang
- Department of Laboratory Medicine, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Zijun Xiao
- Department of Pharmacy, The Second Xiangya Hospital, Central South University, Changsha, China
- Institute of Clinical Pharmacy, Central South University, Changsha, China
| | - Jian Liu
- Department of Pharmacy, The Second Xiangya Hospital, Central South University, Changsha, China
- Institute of Clinical Pharmacy, Central South University, Changsha, China
| | - Weijun Peng
- Department of Integrated Traditional Chinese & Western Medicine, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Bikui Zhang
- Department of Pharmacy, The Second Xiangya Hospital, Central South University, Changsha, China
- Institute of Clinical Pharmacy, Central South University, Changsha, China
- *Correspondence: Bikui Zhang, ; Wenqun Li,
| | - Wenqun Li
- Department of Pharmacy, The Second Xiangya Hospital, Central South University, Changsha, China
- Institute of Clinical Pharmacy, Central South University, Changsha, China
- *Correspondence: Bikui Zhang, ; Wenqun Li,
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The Intestinal Barrier Dysfunction as Driving Factor of Inflammaging. Nutrients 2022; 14:nu14050949. [PMID: 35267924 PMCID: PMC8912763 DOI: 10.3390/nu14050949] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2022] [Revised: 02/17/2022] [Accepted: 02/21/2022] [Indexed: 12/13/2022] Open
Abstract
The intestinal barrier, composed of the luminal microbiota, the mucus layer, and the physical barrier consisting of epithelial cells and immune cells, the latter residing underneath and within the epithelial cells, plays a special role in health and disease. While there is growing knowledge on the changes to the different layers associated with disease development, the barrier function also plays an important role during aging. Besides changes in the composition and function of cellular junctions, the entire gastrointestinal physiology contributes to essential age-related changes. This is also reflected by substantial differences in the microbial composition throughout the life span. Even though it remains difficult to define physiological age-related changes and to distinguish them from early signs of pathologies, studies in centenarians provide insights into the intestinal barrier features associated with longevity. The knowledge reviewed in this narrative review article might contribute to the definition of strategies to prevent the development of diseases in the elderly. Thus, targeted interventions to improve overall barrier function will be important disease prevention strategies for healthy aging in the future.
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Impact of Helicobacter pylori infection on fluid duodenal microbial community structure and microbial metabolic pathways. BMC Microbiol 2022; 22:27. [PMID: 35033024 PMCID: PMC8760755 DOI: 10.1186/s12866-022-02437-w] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Accepted: 01/05/2022] [Indexed: 02/07/2023] Open
Abstract
Background The bioactivities of commensal duodenal microbiota greatly influence the biofunction of hosts. We investigated the role of Helicobacter pylori infection in extra-gastroduodenal diseases by determining the impact of H. pylori infection on the duodenal microbiota. We sequenced 16 S rRNA genes in samples aspirated from the descending duodenum of 47 (male, 20; female, 27) individuals who were screened for gastric cancer. Samples were analysed using 16 S rRNA gene amplicon sequencing, and the LEFSe and Kyoto Encyclopaedia of Genes and Genomes methods were used to determine whether the duodenal microflora and microbial biofunctions were affected using H. pylori infection. Results Thirteen and 34 participants tested positive and negative for H. pylori, respectively. We identified 1,404 bacterial operational taxonomic units from 23 phyla and 253 genera. H. pylori infection changed the relative mean abundance of three phyla (Proteobacteria, Actinobacteria, and TM7) and ten genera (Neisseria, Rothia, TM7-3, Leptotrichia, Lachnospiraceae, Megasphaera, F16, Moryella, Filifactor, and Paludibacter). Microbiota features were significantly influenced in H. pylori-positive participants by 12 taxa mostly classified as Gammaproteobacteria. Microbial functional annotation revealed that H. pylori significantly affected 12 microbial metabolic pathways. Conclusions H. pylori disrupted normal bacterial communities in the duodenum and changed the biofunctions of commensal microbiota primarily by upregulating specific metabolic pathways. Such upregulation may be involved in the onset of diseases associated with H. pylori infection. Supplementary Information The online version contains supplementary material available at 10.1186/s12866-022-02437-w.
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Shang J, Cui W, Guo R, Zhang Y, Wang P, Yu W, Zheng X, Wang T, Dong Y, Zhao J, Ding S, Xiao J, Ren Z, Zhao Z. The harmful intestinal microbial community accumulates during DKD exacerbation and microbiome-metabolome combined validation in a mouse model. Front Endocrinol (Lausanne) 2022; 13:964389. [PMID: 36601003 PMCID: PMC9806430 DOI: 10.3389/fendo.2022.964389] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Accepted: 09/01/2022] [Indexed: 12/23/2022] Open
Abstract
OBJECTIVE Diabetic kidney disease (DKD) is one of the most prevalent complications of diabetes mellitus (DM) and is associated with gut microbial dysbiosis. We aim to build a diagnostic model to aid clinical practice and uncover a crucial harmful microbial community that contributes to DKD pathogenesis and exacerbation. DESIGN A total of 528 fecal samples from 180 DKD patients and 348 non-DKD populations (138 DM and 210 healthy volunteers) from the First Affiliated Hospital of Zhengzhou University were recruited and randomly divided into a discovery phase and a validation phase. The gut microbial composition was compared using 16S rRNA sequencing. Then, the 180 DKD patients were stratified into four groups based on clinical stages and underwent gut microbiota analysis. We established DKD mouse models and a healthy fecal microbiota transplantation (FMT) model to validate the effects of gut microbiota on DKD and select the potential harmful microbial community. Untargeted metabolome-microbiome combined analysis of mouse models helps decipher the pathogenetic mechanism from a metabolic perspective. RESULTS The diversity of the gut microbiome was significantly decreased in DKD patients when compared with that of the non-DKD population and was increased in the patients with more advanced DKD stages. The DKD severity in mice was relieved after healthy gut microbiota reconstruction. The common harmful microbial community was accumulated in the subjects with more severe DKD phenotypes (i.e., DKD and DKD5 patients and DKD mice). The harmful microbial community was positively associated with the serum injurious metabolites (e.g., cholic acid and hippuric acid). CONCLUSION The fecal microbial community was altered markedly in DKD. Combining the fecal analysis of both human and animal models selected the accumulated harmful pathogens. Partially recovering healthy gut microbiota can relieve DKD phenotypes via influencing pathogens' effect on DKD mice's metabolism.
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Affiliation(s)
- Jin Shang
- Department of Nephrology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- Zhengzhou University, Zhengzhou, China
- Laboratory Animal Platform of Academy of Medical Sciences, Zhengzhou University, Zhengzhou, China
- Laboratory of Nephrology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Wen Cui
- Department of Nephrology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- Zhengzhou University, Zhengzhou, China
| | - Ruixue Guo
- Department of Nephrology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- Zhengzhou University, Zhengzhou, China
| | - Yiding Zhang
- Department of Nephrology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- Zhengzhou University, Zhengzhou, China
| | - Peipei Wang
- Department of Nephrology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- Zhengzhou University, Zhengzhou, China
| | - Wei Yu
- Department of Nephrology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- Zhengzhou University, Zhengzhou, China
| | - Xuejun Zheng
- Department of Nephrology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- Zhengzhou University, Zhengzhou, China
| | - Ting Wang
- Department of Nephrology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- Zhengzhou University, Zhengzhou, China
| | - Yijun Dong
- Department of Nephrology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- Zhengzhou University, Zhengzhou, China
| | - Jing Zhao
- Department of Nephrology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- Zhengzhou University, Zhengzhou, China
| | - Suying Ding
- Zhengzhou University, Zhengzhou, China
- Health Management Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Jing Xiao
- Department of Nephrology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- Zhengzhou University, Zhengzhou, China
| | - Zhigang Ren
- Zhengzhou University, Zhengzhou, China
- Department of Infectious Diseases, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Zhanzheng Zhao
- Department of Nephrology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- Zhengzhou University, Zhengzhou, China
- Laboratory Animal Platform of Academy of Medical Sciences, Zhengzhou University, Zhengzhou, China
- Laboratory of Nephrology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
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Li Y, Shao L, Mou Y, Zhang Y, Ping Y. Sleep, circadian rhythm and gut microbiota: alterations in Alzheimer's disease and their potential links in the pathogenesis. Gut Microbes 2021; 13:1957407. [PMID: 34520319 PMCID: PMC8463034 DOI: 10.1080/19490976.2021.1957407] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
ABSTRATCIn recent years, emerging studies have observed gut microbiota (GM) alterations in Alzheimer's disease (AD), even in individuals with mild cognitive impairment (MCI). Further, impaired sleep and circadian patterns are common symptoms of AD, while sleep and circadian rhythm disruption (SCRD) is associated with greater β-amyloid (Aβ) burden and AD risk, sometimes years before the clinical onset of AD. Moreover, reports have demonstrated that GM and its metabolites exhibit diurnal rhythmicity and the role of SCRD in dampening the GM rhythmicity and eubiosis. This review will provide an evaluation of clinical and animal studies describing GM alterations in distinct conditions, including AD, sleep and circadian disruption. It aims to identify the overlapping and distinctive GM alterations in these conditions and their contributions to pathophysiology. Although most studies are observational and use different methodologies, data indicate partial commonalities in GM alterations and unanimity at functional level. Finally, we discuss the possible interactions between SCRD and GM in AD pathogenesis, as well as several methodological improvements that are necessary for future research.
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Affiliation(s)
- Yi Li
- School of Medicine, Imperial College London, London, UK
| | - Lingzhan Shao
- Bio-X Institutes, Key Laboratory for the Genetics of Developmental and Neuropsychiatric Disorders (Ministry of Education), Shanghai Jiao Tong University, Shanghai, China
| | - Yang Mou
- Bio-X Institutes, Key Laboratory for the Genetics of Developmental and Neuropsychiatric Disorders (Ministry of Education), Shanghai Jiao Tong University, Shanghai, China
| | - Yan Zhang
- Bio-X Institutes, Key Laboratory for the Genetics of Developmental and Neuropsychiatric Disorders (Ministry of Education), Shanghai Jiao Tong University, Shanghai, China
| | - Yong Ping
- Bio-X Institutes, Key Laboratory for the Genetics of Developmental and Neuropsychiatric Disorders (Ministry of Education), Shanghai Jiao Tong University, Shanghai, China,Shanghai Mental Health Center, School of Medicine, Shanghai Jiao Tong University, Shanghai, China,CONTACT Yong Ping Bio-X Institutes, Key Laboratory for the Genetics of Developmental and Neuropsychiatric Disorders (Ministry of Education), Shanghai Jiao Tong University, Shanghai 200240, China
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Evaluation of Changes to the Oral Microbiome Based on 16S rRNA Sequencing among Children Treated for Cancer. Cancers (Basel) 2021; 14:cancers14010007. [PMID: 35008173 PMCID: PMC8750156 DOI: 10.3390/cancers14010007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Accepted: 12/13/2021] [Indexed: 11/16/2022] Open
Abstract
Simple Summary Childhood cancer survivors suffer from many oral complications during and after primary therapy. Our study focuses on changes in the oral microbiome of cancer survivors. Using 16S rRNA sequencing, we observed global and distinct changes in oral microbiome associated with a patient’s age and therapy duration, but not antibiotic therapy or cancer type. Observed changes in the oral microbiome could differentiate patients at higher risk of long-term oral complications. Abstract A child’s mouth is the gateway to many species of bacteria. Changes in the oral microbiome may affect the health of the entire body. The aim of the study was to evaluate the changes in the oral microbiome of childhood cancer survivors. Saliva samples before and after anti-cancer treatment were collected from 20 patients aged 6–18 years, diagnosed de novo with cancer in 2018–2019 (7 girls and 13 boys, 7.5–19 years old at the second time point). Bacterial DNA was extracted, and the microbial community profiles were assessed by 16S rRNA sequencing. The relative abundances of Cellulosilyticum and Tannerella genera were found to significantly change throughout therapy (p = 0.043 and p = 0.036, respectively). However, no differences in the alpha-diversity were observed (p = 0.817). The unsupervised classification revealed two clusters of patients: the first with significant changes in Campylobacter and Fusobacterium abundance, and the other with change in Neisseria. These two groups of patients differed in median age (10.25 vs. 16.16 years; p = 0.004) and the length of anti-cancer therapy (19 vs. 4 months; p = 0.003), but not cancer type or antibiotic treatment.
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Jiang J, Liu H, Wang Z, Tian H, Wang S, Yang J, Ren J. Electroacupuncture could balance the gut microbiota and improve the learning and memory abilities of Alzheimer's disease animal model. PLoS One 2021; 16:e0259530. [PMID: 34748592 PMCID: PMC8575259 DOI: 10.1371/journal.pone.0259530] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Accepted: 10/20/2021] [Indexed: 02/07/2023] Open
Abstract
Alzheimer's disease (AD), as one of most common dementia, mainly affects older people from the worldwide. In this study, we intended to explore the possible mechanism of improving cognitive function and protecting the neuron effect by electroacupuncture. METHOD We applied senescence-accelerated mouse prone 8 (SAMP8) mice as AD animal model, used Morris water maze, HE staining, 16S rDNA amplicon sequencing of gut microbiota and ELISA to demonstrate our hypothesis. RESULTS electroacupuncture improved the learning and memory abilities in SAMP8 mice (P<0.05) and could protect the frontal lobe cortex and hippocampus of SAMP8 mice; electroacupuncture significantly decreased the expression of IL-1β (P<0.01), IL-6 (P<0.01) and TNF-α (P<0.01 in hippocampus, P<0.05 in serum) in serum and hippocampus; electroacupuncture balanced the quantity and composition of gut microbiome, especially of the relative abundance in Delta-proteobacteria (P<0.05) and Epsilon-proteobacteria (P<0.05). CONCLUSION electroacupuncture treatment could inhibit the peripheral and central nerve system inflammatory response by balancing the gut microbiota.
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Affiliation(s)
- Jing Jiang
- Beijing University of Chinese Medicine, Beijing, China
| | - Hao Liu
- Beijing University of Chinese Medicine, Beijing, China
| | - Zidong Wang
- Beijing University of Chinese Medicine, Beijing, China
| | - Huiling Tian
- Beijing University of Chinese Medicine, Beijing, China
| | - Shun Wang
- Beijing University of Chinese Medicine, Beijing, China
| | - Jiayi Yang
- Beijing University of Chinese Medicine, Beijing, China
| | - Jingyu Ren
- Beijing University of Chinese Medicine, Beijing, China
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Bazaz MR, Balasubramanian R, Monroy-Jaramillo N, Dandekar MP. Linking the Triad of Telomere Length, Inflammation, and Gut Dysbiosis in the Manifestation of Depression. ACS Chem Neurosci 2021; 12:3516-3526. [PMID: 34547897 DOI: 10.1021/acschemneuro.1c00457] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Telomere length is an indispensable marker for cellular and biological aging, and it also represents an individual's physical and mental health status. Telomere shortening has been observed in chronic inflammatory conditions, which in turn accelerates aging and risk for psychiatric disorders, including depression. Considering the influence of inflammation and telomere shortening on the gut-brain axis, herein we describe a plausible interplay between telomere attrition, inflammation, and gut dysbiosis in the neurobiology of depression. Telomere shortening and hyperinflammation are well reported in depression. A negative impact of augmented inflammation has been noted on the intestinal permeability and microbial consortia and their byproducts in depressive patients. Moreover, gut dysbiosis provokes host-immune responses. As the gut microbiome is gaining importance in the manifestation and management of depression, herein we discuss whether telomere attrition is connected with the perturbation of commensal microflora. We also describe a pathological connection of cortisol with hyperinflammation, telomere shortening, and gut dysbiosis occurring in depression. This review summarizes how the triad of telomere attrition, inflammation, and gut dysbiosis is interconnected and modulates the risk for depression by regulating the systemic cortisol levels.
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Affiliation(s)
- Mohd Rabi Bazaz
- Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad, Telangana, India, 500037
| | - Ramya Balasubramanian
- Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad, Telangana, India, 500037
| | - Nancy Monroy-Jaramillo
- Department of Genetics, National Institute of Neurology and Neurosurgery Manuel Velasco Suárez (NINN), Mexico City, Mexico, 14269
| | - Manoj P. Dandekar
- Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad, Telangana, India, 500037
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Li Y, Cai Y, Huang Q, Tan W, Li B, Zhou H, Wang Z, Zou J, Ding C, Jiang B, Yoshida S, Zhou Y. Altered Fecal Microbiome and Metabolome in a Mouse Model of Choroidal Neovascularization. Front Microbiol 2021; 12:738796. [PMID: 34512615 PMCID: PMC8427291 DOI: 10.3389/fmicb.2021.738796] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2021] [Accepted: 07/30/2021] [Indexed: 12/18/2022] Open
Abstract
Purpose Choroidal neovascularization (CNV) is the defining feature of neovascular age-related macular degeneration (nAMD). Gut microbiota might be deeply involved in the pathogenesis of nAMD. This study aimed to reveal the roles of the gut microbiome and fecal metabolome in a mouse model of laser-induced CNV. Methods The feces of C57BL/6J mice with or without laser-induced CNV were collected. Multi-omics analyses, including 16S rRNA gene sequencing and untargeted metabolomics, were conducted to analyze the changes in the gut microbial composition and the fecal metabolomic profiles in CNV mice. Results The gut microbiota was significantly altered in CNV mice. The abundance of Candidatus_Saccharimonas was significantly upregulated in the feces of CNV mice, while 16 genera, including Prevotellaceae_NK3B31_group, Candidatus_Soleaferrea, and Truepera, were significantly more abundant in the controls than in the CNV group. Fecal metabolomics identified 73 altered metabolites (including 52 strongly significantly altered metabolites) in CNV mice compared to control mice. Correlation analysis indicated significant correlations between the altered fecal metabolites and gut microbiota genera, such as Lachnospiraceae_UCG-001 and Candidatus_Saccharimonas. Moreover, KEGG analysis revealed six pathways associated with these altered metabolites, such as the ABC transporter, primary bile acid biosynthesis and steroid hormone biosynthesis pathways. Conclusion The study identified an altered fecal microbiome and metabolome in a CNV mouse model. The altered microbes, metabolites and the involved pathways might be associated with the pathogenesis of nAMD.
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Affiliation(s)
- Yun Li
- Department of Ophthalmology, The Second Xiangya Hospital, Central South University, Changsha, China.,Hunan Clinical Research Center of Ophthalmic Disease, Changsha, China
| | - Yuting Cai
- Department of Ophthalmology, The Second Xiangya Hospital, Central South University, Changsha, China.,Hunan Clinical Research Center of Ophthalmic Disease, Changsha, China
| | - Qian Huang
- Department of Ophthalmology, The Second Xiangya Hospital, Central South University, Changsha, China.,Hunan Clinical Research Center of Ophthalmic Disease, Changsha, China
| | - Wei Tan
- Department of Ophthalmology, The Second Xiangya Hospital, Central South University, Changsha, China.,Hunan Clinical Research Center of Ophthalmic Disease, Changsha, China
| | - Bingyan Li
- Department of Ophthalmology, The Second Xiangya Hospital, Central South University, Changsha, China.,Hunan Clinical Research Center of Ophthalmic Disease, Changsha, China
| | - Haixiang Zhou
- Department of Ophthalmology, The Second Xiangya Hospital, Central South University, Changsha, China.,Hunan Clinical Research Center of Ophthalmic Disease, Changsha, China
| | - Zicong Wang
- Department of Ophthalmology, The Second Xiangya Hospital, Central South University, Changsha, China.,Hunan Clinical Research Center of Ophthalmic Disease, Changsha, China
| | - Jingling Zou
- Department of Ophthalmology, The Second Xiangya Hospital, Central South University, Changsha, China.,Hunan Clinical Research Center of Ophthalmic Disease, Changsha, China
| | - Chun Ding
- Department of Ophthalmology, The Second Xiangya Hospital, Central South University, Changsha, China.,Hunan Clinical Research Center of Ophthalmic Disease, Changsha, China
| | - Bing Jiang
- Department of Ophthalmology, The Second Xiangya Hospital, Central South University, Changsha, China.,Hunan Clinical Research Center of Ophthalmic Disease, Changsha, China
| | - Shigeo Yoshida
- Department of Ophthalmology, Kurume University School of Medicine, Kurume, Japan
| | - Yedi Zhou
- Department of Ophthalmology, The Second Xiangya Hospital, Central South University, Changsha, China.,Hunan Clinical Research Center of Ophthalmic Disease, Changsha, China
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Zhu X, Li B, Lou P, Dai T, Chen Y, Zhuge A, Yuan Y, Li L. The Relationship Between the Gut Microbiome and Neurodegenerative Diseases. Neurosci Bull 2021; 37:1510-1522. [PMID: 34216356 PMCID: PMC8490573 DOI: 10.1007/s12264-021-00730-8] [Citation(s) in RCA: 39] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Accepted: 03/25/2021] [Indexed: 02/07/2023] Open
Abstract
Many recent studies have shown that the gut microbiome plays important roles in human physiology and pathology. Also, microbiome-based therapies have been used to improve health status and treat diseases. In addition, aging and neurodegenerative diseases, including Alzheimer's disease and Parkinson's disease, have become topics of intense interest in biomedical research. Several researchers have explored the links between these topics to study the potential pathogenic or therapeutic effects of intestinal microbiota in disease. But the exact relationship between neurodegenerative diseases and gut microbiota remains unclear. As technology advances, new techniques for studying the microbiome will be developed and refined, and the relationship between diseases and gut microbiota will be revealed. This article summarizes the known interactions between the gut microbiome and neurodegenerative diseases, highlighting assay techniques for the gut microbiome, and we also discuss the potential therapeutic role of microbiome-based therapies in diseases.
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Affiliation(s)
- Xueling Zhu
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310003, China.,Research Units of Infectious Disease and Microecology, Chinese Academy of Medical Sciences, Beijing, 100730, China
| | - Bo Li
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310003, China.,Research Units of Infectious Disease and Microecology, Chinese Academy of Medical Sciences, Beijing, 100730, China
| | - Pengcheng Lou
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310003, China.,Research Units of Infectious Disease and Microecology, Chinese Academy of Medical Sciences, Beijing, 100730, China
| | - Tingting Dai
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310003, China.,Research Units of Infectious Disease and Microecology, Chinese Academy of Medical Sciences, Beijing, 100730, China
| | - Yang Chen
- The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310003, China
| | - Aoxiang Zhuge
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310003, China.,Research Units of Infectious Disease and Microecology, Chinese Academy of Medical Sciences, Beijing, 100730, China
| | - Yin Yuan
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310003, China.,Research Units of Infectious Disease and Microecology, Chinese Academy of Medical Sciences, Beijing, 100730, China
| | - Lanjuan Li
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310003, China. .,Research Units of Infectious Disease and Microecology, Chinese Academy of Medical Sciences, Beijing, 100730, China.
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Jiang Y, Guo Z, Liu X, Wang Y, Li J, Wang B. Effects of Aricept on intestinal flora diversity in patients with mild Alzheimer's disease explored through high-throughput sequencing technology. Am J Transl Res 2021; 13:2486-2498. [PMID: 34017407 PMCID: PMC8129215] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Accepted: 01/21/2021] [Indexed: 06/12/2023]
Abstract
OBJECTIVE To research the effects of Aricept on the intestinal flora in patients with mild Alzheimer's disease (AD) and explore the relationship between the improvement from Aricept on AD and the changes in intestinal flora. METHODS One month after Aricept treatment, DNA was extracted from stool samples of patients and the quality of DNA was detected. Then, the library was constructed, quantified, pooled and the quality of the library was checked. Sequencing was conducted using the Miseq sequencer and the related results were analyzed by bioinformatics. RESULTS The overall structure of intestinal flora in AD patients was largely changed after Aricept treatment (P<0.05), which was mainly shown as decreased abundance of Firmicutes, Proteobacteria, actinobacteria and fusobacteria, and increased abundance of Bacteroidetes. The average abundance of intestinal flora in lipid metabolism pathwa was also different before and after treatment (P<0.05). The function of target receptor molecules in the Aricept drug target network mainly targets G-protein coupled receptors; biological processes in energy metabolism; and biological pathways mostly target proteoglycans. CONCLUSION The occurrence and progression of AD are closely related to abnormal changes in intestinal flora structure. Bile acids may improve the symptoms of mild AD by changing the intestinal flora through lipid energy metabolism. In other words, Bile acids regulate the activity of the host nervous system through intestinal flora regulation. Intestinal flora maintains the homeostasis of bile acid and further affects the physiological and pathological processes of the host. The analysis of AD related flora structure pattern helps to understand the molecular pathological basis of AD and provides theoretical basis for the development and design of innovative drugs for AD.
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Affiliation(s)
- Yang Jiang
- Department of Science and Education, Tongde Hospital of Zhejiang ProvinceHangzhou, Zhejiang Province, China
| | - Zhongwei Guo
- Department of Geriatrics, Tongde Hospital of Zhejiang ProvinceHangzhou, Zhejiang Province, China
| | - Xuezhen Liu
- Department of Geriatrics, Tongde Hospital of Zhejiang ProvinceHangzhou, Zhejiang Province, China
| | - Yanping Wang
- Department of Geriatrics, Tongde Hospital of Zhejiang ProvinceHangzhou, Zhejiang Province, China
| | - Jiapeng Li
- Department of Radiology, Tongde Hospital of Zhejiang ProvinceHangzhou, Zhejiang Province, China
| | - Bin Wang
- Department of Ophtalmology, Tongde Hospital of Zhejiang ProvinceHangzhou, Zhejiang Province, China
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Carranza-Naval MJ, Vargas-Soria M, Hierro-Bujalance C, Baena-Nieto G, Garcia-Alloza M, Infante-Garcia C, del Marco A. Alzheimer's Disease and Diabetes: Role of Diet, Microbiota and Inflammation in Preclinical Models. Biomolecules 2021; 11:biom11020262. [PMID: 33578998 PMCID: PMC7916805 DOI: 10.3390/biom11020262] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2020] [Revised: 02/05/2021] [Accepted: 02/05/2021] [Indexed: 02/06/2023] Open
Abstract
Alzheimer's disease (AD) is the most common cause of dementia. Epidemiological studies show the association between AD and type 2 diabetes (T2DM), although the mechanisms are not fully understood. Dietary habits and lifestyle, that are risk factors in both diseases, strongly modulate gut microbiota composition. Also, the brain-gut axis plays a relevant role in AD, diabetes and inflammation, through products of bacterial metabolism, like short-chain fatty acids. We provide a comprehensive review of current literature on the relation between dysbiosis, altered inflammatory cytokines profile and microglia in preclinical models of AD, T2DM and models that reproduce both diseases as commonly observed in the clinic. Increased proinflammatory cytokines, such as IL-1β and TNF-α, are widely detected. Microbiome analysis shows alterations in Actinobacteria, Bacteroidetes or Firmicutes phyla, among others. Altered α- and β-diversity is observed in mice depending on genotype, gender and age; therefore, alterations in bacteria taxa highly depend on the models and approaches. We also review the use of pre- and probiotic supplements, that by favoring a healthy microbiome ameliorate AD and T2DM pathologies. Whereas extensive studies have been carried out, further research would be necessary to fully understand the relation between diet, microbiome and inflammation in AD and T2DM.
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Affiliation(s)
- Maria Jose Carranza-Naval
- Division of Physiology, School of Medicine, Universidad de Cadiz, 11003 Cadiz, Spain; (M.J.C.-N.); (M.V.-S.); (C.H.-B.); (M.G.-A.)
- Instituto de Investigacion e Innovacion en Ciencias Biomedicas de la Provincia de Cadiz (INIBICA), 11009 Cadiz, Spain;
- Salus Infirmorum, Universidad de Cadiz, 11005 Cadiz, Spain
| | - Maria Vargas-Soria
- Division of Physiology, School of Medicine, Universidad de Cadiz, 11003 Cadiz, Spain; (M.J.C.-N.); (M.V.-S.); (C.H.-B.); (M.G.-A.)
- Instituto de Investigacion e Innovacion en Ciencias Biomedicas de la Provincia de Cadiz (INIBICA), 11009 Cadiz, Spain;
| | - Carmen Hierro-Bujalance
- Division of Physiology, School of Medicine, Universidad de Cadiz, 11003 Cadiz, Spain; (M.J.C.-N.); (M.V.-S.); (C.H.-B.); (M.G.-A.)
- Instituto de Investigacion e Innovacion en Ciencias Biomedicas de la Provincia de Cadiz (INIBICA), 11009 Cadiz, Spain;
| | - Gloria Baena-Nieto
- Instituto de Investigacion e Innovacion en Ciencias Biomedicas de la Provincia de Cadiz (INIBICA), 11009 Cadiz, Spain;
- Department of Endocrinology, Jerez Hospital, Jerez de la Frontera, 11407 Cadiz, Spain
| | - Monica Garcia-Alloza
- Division of Physiology, School of Medicine, Universidad de Cadiz, 11003 Cadiz, Spain; (M.J.C.-N.); (M.V.-S.); (C.H.-B.); (M.G.-A.)
- Instituto de Investigacion e Innovacion en Ciencias Biomedicas de la Provincia de Cadiz (INIBICA), 11009 Cadiz, Spain;
| | - Carmen Infante-Garcia
- Division of Physiology, School of Medicine, Universidad de Cadiz, 11003 Cadiz, Spain; (M.J.C.-N.); (M.V.-S.); (C.H.-B.); (M.G.-A.)
- Instituto de Investigacion e Innovacion en Ciencias Biomedicas de la Provincia de Cadiz (INIBICA), 11009 Cadiz, Spain;
- Correspondence: (C.I.-G.); (A.d.M.)
| | - Angel del Marco
- Division of Physiology, School of Medicine, Universidad de Cadiz, 11003 Cadiz, Spain; (M.J.C.-N.); (M.V.-S.); (C.H.-B.); (M.G.-A.)
- Instituto de Investigacion e Innovacion en Ciencias Biomedicas de la Provincia de Cadiz (INIBICA), 11009 Cadiz, Spain;
- Correspondence: (C.I.-G.); (A.d.M.)
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Xie Z, Lu H, Yang S, Zeng Y, Li W, Wang L, Luo G, Fang F, Zeng T, Cheng W. Salidroside Attenuates Cognitive Dysfunction in Senescence-Accelerated Mouse Prone 8 (SAMP8) Mice and Modulates Inflammation of the Gut-Brain Axis. Front Pharmacol 2020; 11:568423. [PMID: 33362539 PMCID: PMC7759146 DOI: 10.3389/fphar.2020.568423] [Citation(s) in RCA: 51] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2020] [Accepted: 10/21/2020] [Indexed: 12/15/2022] Open
Abstract
Background: Alzheimer's disease (AD) is a fatal neurodegenerative disease characterized by progressive cognitive decline and memory loss. However, several therapeutic approaches have shown unsatisfactory outcomes in the clinical setting. Thus, developing alternative therapies for the prevention and treatment of AD is critical. Salidroside (SAL) is critical, an herb-derived phenylpropanoid glycoside compound, has been shown to attenuate lipopolysaccharide (LPS)-induced cognitive impairment. However, the mechanism underlying its neuroprotective effects remains unclear. Here, we show that SAL has a therapeutic effect in the senescence-accelerated mouse prone 8 (SAMP8) strain, a reliable and stable mouse model of AD. Methods: SAMP8 mice were treated with SAL, donepezil (DNP) or saline, and cognitive behavioral impairments were assessed using the Morris water maze (MWM), Y maze, and open field test (OFT). Fecal samples were collected and analyzed by 16S rRNA sequencing on an Illumina MiSeq system. Brain samples were analyzed to detect beta-amyloid (Aβ) 1-42 (Aβ1-42) deposition by immunohistochemistry (IHC) and western blotting. The activation of microglia and neuroinflammatory cytokines was detected by immunofluorescence (IF), western blotting and qPCR. Serum was analyzed by a Mouse High Sensitivity T Cell Magnetic Bead Panel on a Luminex-MAGPIX multiplex immunoassay system. Results: Our results suggest that SAL effectively alleviated hippocampus-dependent memory impairment in the SAMP8 mice. SAL significantly 1) reduced toxic Aβ1-42 deposition; 2) reduced microglial activation and attenuated the levels of the proinflammatory factors IL-1β, IL-6, and TNF-α in the brain; 3) improved the gut barrier integrity and modified the gut microbiota (reversed the ratio of Bacteroidetes to Firmicutes and eliminated Clostridiales and Streptococcaceae, which may be associated with cognitive deficits); and 4) decreased the levels of proinflammatory cytokines, particularly IL-1α, IL-6, IL-17A and IL-12, in the peripheral circulation, as determined by a multiplex immunoassay. Conclusion: In summary, SAL reversed AD-related changes in SAMP8 mice, potentially by regulating the microbiota-gut-brain axis and modulating inflammation in both the peripheral circulation and central nervous system. Our results strongly suggest that SAL has a preventive effect on cognition-related changes in SAMP8 mice and highlight its value as a potential agent for drug development.
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Affiliation(s)
- Zeping Xie
- Traditional Chinese Pharmacological Laboratory, School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China
| | - Hui Lu
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China
| | - Sixia Yang
- Traditional Chinese Pharmacological Laboratory, School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China
| | - Yi Zeng
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China
| | - Wei Li
- Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Linlin Wang
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China
| | - Guanfeng Luo
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China
| | - Fang Fang
- Traditional Chinese Pharmacological Laboratory, School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China
| | - Ting Zeng
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China
| | - Weidong Cheng
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China
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Guo LX, Tong Y, Wang J, Yin G, Huang HS, Zeng L, Wang P, Li JP, Bi KS, Wang TJ. Determination and Comparison of Short-Chain Fatty Acids in Serum and Colon Content Samples: Alzheimer's Disease Rat as a Case Study. Molecules 2020; 25:molecules25235739. [PMID: 33291848 PMCID: PMC7729479 DOI: 10.3390/molecules25235739] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2020] [Revised: 11/20/2020] [Accepted: 12/02/2020] [Indexed: 01/16/2023] Open
Abstract
Short-chain fatty acids (SCFAs) are the main microbial fermentation products from dietary fibers in the colon, and it has been speculated that they play a key role in keeping healthy in the whole-body. However, differences in SCFAs concentration in the serum and colon samples had attracted little attention. In this study, we have optimized the extract and analysis methods for the determination of ten SCFAs in both serum and colon content samples. Methanol and acetonitrile were chosen for extraction of SCFAs from serum and colon content samples, respectively. Biological samples were collected from Alzheimer's disease rats treated by extract of Schisandra chinensis (Turcz.) Baill (SC-extract) were taken as research objects. The results showed that, the relative peak intensities of SCFAs in the colon content from all groups were quite similar, and the trend was identical in the serum samples. Compared with the values in humans, the ratio of ten SCFAs in rat's colon was similar, while the percent of acetate in rat's serum was significantly higher. For therapy of Alzheimer's disease (AD), SC-extract decreased the concentration of butyrate, 3-Methyvalerate, and caproate in the serum samples towards the trend of normal rats. This study may help our understanding of how SCFAs are transported across colonic epithelium in healthy and diseased organisms.
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Affiliation(s)
- Lin-Xiu Guo
- Shenzhen Key Laboratory of Drug Quality Standard Research, Shenzhen Institute for Drug Control, Shenzhen 518057, China; (L.-X.G.); (Y.T.); (J.W.); (G.Y.); (H.-S.H.); (L.Z.); (P.W.); (J.-P.L.)
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Yue Tong
- Shenzhen Key Laboratory of Drug Quality Standard Research, Shenzhen Institute for Drug Control, Shenzhen 518057, China; (L.-X.G.); (Y.T.); (J.W.); (G.Y.); (H.-S.H.); (L.Z.); (P.W.); (J.-P.L.)
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Jue Wang
- Shenzhen Key Laboratory of Drug Quality Standard Research, Shenzhen Institute for Drug Control, Shenzhen 518057, China; (L.-X.G.); (Y.T.); (J.W.); (G.Y.); (H.-S.H.); (L.Z.); (P.W.); (J.-P.L.)
| | - Guo Yin
- Shenzhen Key Laboratory of Drug Quality Standard Research, Shenzhen Institute for Drug Control, Shenzhen 518057, China; (L.-X.G.); (Y.T.); (J.W.); (G.Y.); (H.-S.H.); (L.Z.); (P.W.); (J.-P.L.)
| | - Hou-Shuang Huang
- Shenzhen Key Laboratory of Drug Quality Standard Research, Shenzhen Institute for Drug Control, Shenzhen 518057, China; (L.-X.G.); (Y.T.); (J.W.); (G.Y.); (H.-S.H.); (L.Z.); (P.W.); (J.-P.L.)
| | - Long Zeng
- Shenzhen Key Laboratory of Drug Quality Standard Research, Shenzhen Institute for Drug Control, Shenzhen 518057, China; (L.-X.G.); (Y.T.); (J.W.); (G.Y.); (H.-S.H.); (L.Z.); (P.W.); (J.-P.L.)
| | - Ping Wang
- Shenzhen Key Laboratory of Drug Quality Standard Research, Shenzhen Institute for Drug Control, Shenzhen 518057, China; (L.-X.G.); (Y.T.); (J.W.); (G.Y.); (H.-S.H.); (L.Z.); (P.W.); (J.-P.L.)
| | - Jun-Peng Li
- Shenzhen Key Laboratory of Drug Quality Standard Research, Shenzhen Institute for Drug Control, Shenzhen 518057, China; (L.-X.G.); (Y.T.); (J.W.); (G.Y.); (H.-S.H.); (L.Z.); (P.W.); (J.-P.L.)
| | - Kai-Shun Bi
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang 110016, China
- Correspondence: (K.-S.B.); (T.-J.W.); Tel.: +86-024-4352-0012 (K.-S.B.); +86-755-2603-1728 (T.-J.W.)
| | - Tie-Jie Wang
- Shenzhen Key Laboratory of Drug Quality Standard Research, Shenzhen Institute for Drug Control, Shenzhen 518057, China; (L.-X.G.); (Y.T.); (J.W.); (G.Y.); (H.-S.H.); (L.Z.); (P.W.); (J.-P.L.)
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang 110016, China
- Correspondence: (K.-S.B.); (T.-J.W.); Tel.: +86-024-4352-0012 (K.-S.B.); +86-755-2603-1728 (T.-J.W.)
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Liu J, Luo M, Zhang Y, Cao G, Wang S. Association of high-risk human papillomavirus infection duration and cervical lesions with vaginal microbiota composition. ANNALS OF TRANSLATIONAL MEDICINE 2020; 8:1161. [PMID: 33241010 PMCID: PMC7576078 DOI: 10.21037/atm-20-5832] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
Background Cervical cancer is reportedly caused by the synergistic effects of persistent high-risk human papillomavirus (HPV) infection. Cervical microbiota represent a unique and dynamically changing microecological system that is directly exposed to the vagina. The relationship between HPV and the composition of the cervical microbiome has long been a primary focus of research. Methods To determine the specific differential florae throughout the process of cervical cancer development, in the present study, 16S rRNA sequencing was combined with KEGG pathway enrichment analysis to analyse five groups of cervical scraping samples with increasing durations of HPV infection and cervical intraepithelial neoplasia pathological classification. Results The findings revealed that decreasing levels of probiotics, including Shuttleworthia, Prevotella, Lactobacillus, and Sneathia, and increasing levels of pathogenic bacteria, including Dispar, Streptococcus, and Faecalibacterium prausnitzii, could be the direct result of early HPV infection. Other pathogenic bacteria, such as Bifidobacteriaceae, might represent key factors in cancer progression. Additionally, KEGG pathway enrichment analysis indicated that HPV infection directly inhibits multiple pathways, including those of sporulation, porphyrin and chlorophyll metabolism, arginine and proline metabolism, isoquinoline alkaloid biosynthesis, and ansamycin biosynthesis, which may lead to the development of early symptoms of cervical cancer. Biomarkers were predicted based on operational taxonomic unit (OTU) abundance data, and OTU851726 and OTU715913 were undoubtedly the best potential indicators of cervical cancer. Conclusions The findings of the present study could assist with the development of a guideline for screening new clinical drugs for cervical cancer.
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Affiliation(s)
- Jun Liu
- Department of Obstetrics and Gynecology, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
| | - Mei Luo
- Department of Obstetrics and Gynecology, Lu-He Teaching Hospital, Capital Medical University, Beijing, China
| | - Yang Zhang
- Department of Obstetrics and Gynecology, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
| | - Guangming Cao
- Department of Obstetrics and Gynecology, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
| | - Shuzhen Wang
- Department of Obstetrics and Gynecology, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
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Endres K. Retinoic Acid and the Gut Microbiota in Alzheimer's Disease: Fighting Back-to-Back? Curr Alzheimer Res 2020; 16:405-417. [PMID: 30907321 DOI: 10.2174/1567205016666190321163705] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2019] [Revised: 03/15/2019] [Accepted: 03/19/2019] [Indexed: 12/20/2022]
Abstract
BACKGROUND There is growing evidence that the gut microbiota may play an important role in neurodegenerative diseases such as Alzheimer's disease. However, how these commensals influence disease risk and progression still has to be deciphered. OBJECTIVE The objective of this review was to summarize current knowledge on the interplay between gut microbiota and retinoic acid. The latter one represents one of the important micronutrients, which have been correlated to Alzheimer's disease and are used in initial therapeutic intervention studies. METHODS A selective overview of the literature is given with the focus on the function of retinoic acid in the healthy and diseased brain, its metabolism in the gut, and the potential influence that the bioactive ligand may have on microbiota, gut physiology and, Alzheimer's disease. RESULTS Retinoic acid can influence neuronal functionality by means of plasticity but also by neurogenesis and modulating proteostasis. Impaired retinoid-signaling, therefore, might contribute to the development of diseases in the brain. Despite its rather direct impact, retinoic acid also influences other organ systems such as gut by regulating the residing immune cells but also factors such as permeability or commensal microbiota. These in turn can also interfere with retinoid-metabolism and via the gutbrain- axis furthermore with Alzheimer's disease pathology within the brain. CONCLUSION Potentially, it is yet too early to conclude from the few reports on changed microbiota in Alzheimer's disease to a dysfunctional role in retinoid-signaling. However, there are several routes how microbial commensals might affect and might be affected by vitamin A and its derivatives.
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Affiliation(s)
- Kristina Endres
- Department of Psychiatry and Psychotherapy, University Medical Center, Johannes Gutenberg-University, Mainz, Germany
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40
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He Y, Li B, Sun D, Chen S. Gut Microbiota: Implications in Alzheimer's Disease. J Clin Med 2020; 9:jcm9072042. [PMID: 32610630 PMCID: PMC7409059 DOI: 10.3390/jcm9072042] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2020] [Revised: 05/16/2020] [Accepted: 06/15/2020] [Indexed: 12/20/2022] Open
Abstract
Alzheimer’s disease (AD), the most common cause of dementia, is a neurodegenerative disease that seriously threatens human health and life quality. The main pathological features of AD include the widespread deposition of amyloid-beta and neurofibrillary tangles in the brain. So far, the pathogenesis of AD remains elusive, and no radical treatment has been developed. In recent years, mounting evidence has shown that there is a bidirectional interaction between the gut and brain, known as the brain–gut axis, and that the intestinal microbiota are closely related to the occurrence and development of neurodegenerative diseases. In this review, we will summarize the laboratory and clinical evidence of the correlation between intestinal flora and AD, discuss its possible role in the pathogenesis, and prospect its applications in the diagnosis and treatment of AD.
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Affiliation(s)
- Yixi He
- Department of Neurology and Institute of Neurology, Ruijin Hospital affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China; (Y.H.); (B.L.)
| | - Binyin Li
- Department of Neurology and Institute of Neurology, Ruijin Hospital affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China; (Y.H.); (B.L.)
| | - Dingya Sun
- Institute of Neuroscience, Key Laboratory of Molecular Neurobiology of the Ministry of Education, Second Military Medical University, Shanghai 200433, China;
| | - Shengdi Chen
- Department of Neurology and Institute of Neurology, Ruijin Hospital affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China; (Y.H.); (B.L.)
- Correspondence:
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Tilocca B, Pieroni L, Soggiu A, Britti D, Bonizzi L, Roncada P, Greco V. Gut-Brain Axis and Neurodegeneration: State-of-the-Art of Meta-Omics Sciences for Microbiota Characterization. Int J Mol Sci 2020; 21:E4045. [PMID: 32516966 PMCID: PMC7312636 DOI: 10.3390/ijms21114045] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Revised: 05/31/2020] [Accepted: 06/04/2020] [Indexed: 12/12/2022] Open
Abstract
Recent advances in the field of meta-omics sciences and related bioinformatics tools have allowed a comprehensive investigation of human-associated microbiota and its contribution to achieving and maintaining the homeostatic balance. Bioactive compounds from the microbial community harboring the human gut are involved in a finely tuned network of interconnections with the host, orchestrating a wide variety of physiological processes. These includes the bi-directional crosstalk between the central nervous system, the enteric nervous system, and the gastrointestinal tract (i.e., gut-brain axis). The increasing accumulation of evidence suggest a pivotal role of the composition and activity of the gut microbiota in neurodegeneration. In the present review we aim to provide an overview of the state-of-the-art of meta-omics sciences including metagenomics for the study of microbial genomes and taxa strains, metatranscriptomics for gene expression, metaproteomics and metabolomics to identify and/or quantify microbial proteins and metabolites, respectively. The potential and limitations of each discipline were highlighted, as well as the advantages of an integrated approach (multi-omics) to predict microbial functions and molecular mechanisms related to human diseases. Particular emphasis is given to the latest results obtained with these approaches in an attempt to elucidate the link between the gut microbiota and the most common neurodegenerative diseases, such as multiple sclerosis (MS), Alzheimer's disease (AD), Parkinson's disease (PD), and amyotrophic lateral sclerosis (ALS).
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Affiliation(s)
- Bruno Tilocca
- Department of Health Sciences, University “Magna Græcia” of Catanzaro, viale Europa, 88100 Catanzaro, Italy; (B.T.); (D.B.)
| | - Luisa Pieroni
- Proteomics and Metabonomics Unit, Fondazione Santa Lucia-IRCCS, via del Fosso di Fiorano, 64-00143 Rome, Italy;
| | - Alessio Soggiu
- Department of Biomedical, Surgical and Dental Sciences- One Health Unit, University of Milano, via Celoria 10, 20133 Milano, Italy;
- Department of Veterinary Medicine, University of Milano, Via dell’Università, 6- 26900 Lodi, Italy;
| | - Domenico Britti
- Department of Health Sciences, University “Magna Græcia” of Catanzaro, viale Europa, 88100 Catanzaro, Italy; (B.T.); (D.B.)
| | - Luigi Bonizzi
- Department of Veterinary Medicine, University of Milano, Via dell’Università, 6- 26900 Lodi, Italy;
| | - Paola Roncada
- Department of Health Sciences, University “Magna Græcia” of Catanzaro, viale Europa, 88100 Catanzaro, Italy; (B.T.); (D.B.)
| | - Viviana Greco
- Department of Basic Biotechnological Sciences, Intensivological and Perioperative Clinics, Università Cattolica del Sacro Cuore, Largo F. Vito 1, 00168 Rome, Italy
- Fondazione Policlinico Universitario Agostino Gemelli, Largo A. Gemelli, 8-00168 Rome, Italy
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Dos Santos Guilherme M, Todorov H, Osterhof C, Möllerke A, Cub K, Hankeln T, Gerber S, Endres K. Impact of Acute and Chronic Amyloid-β Peptide Exposure on Gut Microbial Commensals in the Mouse. Front Microbiol 2020; 11:1008. [PMID: 32508799 PMCID: PMC7251927 DOI: 10.3389/fmicb.2020.01008] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2020] [Accepted: 04/24/2020] [Indexed: 01/01/2023] Open
Abstract
Alzheimer's disease (AD) is the most common form of dementia. Besides its cognitive phenotype, AD leads to crucial changes in gut microbiome composition in model mice and in patients, but the reported data are still highly inconsistent. Therefore, we investigated chronic effects of AD-characteristic neurotoxic amyloid-β (Aβ) peptides as provided by transgenic overexpression (5xFAD mouse model) and acute effects due to oral application of Aβ on gut microbes. Astonishingly, one-time feeding of wild type mice with Aβ42 provoked immediate changes in gut microbiome composition (β diversity) as compared to controls. Such obvious changes were not observed when comparing 5xFAD mice with wild type littermates. However, acute as well as chronic exposure to Aβ significantly affected the abundance of numerous individual operational taxonomic units. This provides first evidence that acute in vivo exposure to Aβ results in a shift in the enteric microbiome. Furthermore, we suggest that chronic exposure to Aβ might trigger an adaptive response of gut microbiota which could thereby result in dysbiosis in model mice but also in human patients.
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Affiliation(s)
- Malena Dos Santos Guilherme
- Department of Psychiatry and Psychotherapy, University Medical Center, Johannes Gutenberg University Mainz, Mainz, Germany
| | - Hristo Todorov
- Faculty of Biology, Institute for Developmental Biology and Neurobiology, Center of Computational Sciences Mainz, Johannes Gutenberg University Mainz, Mainz, Germany.,Institute for Human Genetics, University Medical Center, Johannes Gutenberg University Mainz, Mainz, Germany.,Fresenius Kabi Deutschland GmbH, Oberursel, Germany, Oberursel, Germany
| | - Carina Osterhof
- Institute of Organismic and Molecular Evolution, Molecular Genetics and Genome Analysis, Johannes Gutenberg University Mainz, Mainz, Germany
| | - Anton Möllerke
- Department of Psychiatry and Psychotherapy, University Medical Center, Johannes Gutenberg University Mainz, Mainz, Germany
| | - Kristina Cub
- Department of Psychiatry and Psychotherapy, University Medical Center, Johannes Gutenberg University Mainz, Mainz, Germany
| | - Thomas Hankeln
- Institute of Organismic and Molecular Evolution, Molecular Genetics and Genome Analysis, Johannes Gutenberg University Mainz, Mainz, Germany
| | - Susanne Gerber
- Faculty of Biology, Institute for Developmental Biology and Neurobiology, Center of Computational Sciences Mainz, Johannes Gutenberg University Mainz, Mainz, Germany.,Institute for Human Genetics, University Medical Center, Johannes Gutenberg University Mainz, Mainz, Germany
| | - Kristina Endres
- Department of Psychiatry and Psychotherapy, University Medical Center, Johannes Gutenberg University Mainz, Mainz, Germany
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Fu P, Bai L, Cai Z, Li R, Yung KKL. Fine particulate matter aggravates intestinal and brain injury and affects bacterial community structure of intestine and feces in Alzheimer's disease transgenic mice. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2020; 192:110325. [PMID: 32078839 DOI: 10.1016/j.ecoenv.2020.110325] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/12/2019] [Revised: 02/09/2020] [Accepted: 02/10/2020] [Indexed: 06/10/2023]
Abstract
Fine particulate matter (PM2.5) was a risk factor for neurological disorders when emerging studies revealed that PM2.5 affected the bacterial community structure of gut in Alzheimer's disease (AD) patients. The purpose of this study was to explore the effects of PM2.5 on intestinal and brain injury and on bacterial community structure in the intestine and feces of APP/PS1 transgenic mice exposed to PM2.5 for eight weeks with a real-world whole-body inhalation exposure system in Taiyuan, China. The brain and intestinal tissues were collected to evaluate histopathological changes by HE staining. TNF-α and IL-6 levels in intestines, brains, and serums, and Aβ-42 levels in brains were detected. Intestinal and fecal samples were subjected to 16S rRNA gene sequencing. Results showed that PM2.5 significantly aggravated the pathological injury in intestines and brains in AD mice with elevated pro-inflammatory cytokine levels. The estimators of Shannon, Simpson, Chao1, and ACE indexes reflected the diversity and richness of the bacterial community. Compared with the FA-WT group, the FA-AD group had lower diversity and richness when the PM2.5-AD group had the highest ones. PCA and NMDS revealed the specific influence of PM2.5 on the bacterial community of intestine and feces because that the PM2.5-FA and PM2.5-AD group clumped visibly closer than the other groups in both bacterial communities of intestine and feces. The KEGG pathway analysis predicted the vital functional genes and metabolic pathways in the bacterial community of PM2.5-AD mice. This study indicated the histopathological changes and inflammation in the intestine and brain were seriously caused in PM2.5-AD mice when the α-diversity of the bacterial community in intestine and feces was visibly changed.
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Affiliation(s)
- Pengfei Fu
- Department of Biology, Golden Meditech Center for NeuroRegeneration Sciences, Hong Kong Baptist University, Hong Kong Special Administrative Region
| | - Lirong Bai
- Institute of Environmental Science, Shanxi University, Taiyuan, PR China
| | - Zongwei Cai
- State Key Laboratory of Environmental and Biological Analysis, Hong Kong Baptist University, Hong Kong Special Administrative Region
| | - Ruijin Li
- Institute of Environmental Science, Shanxi University, Taiyuan, PR China.
| | - Ken Kin Lam Yung
- Department of Biology, Golden Meditech Center for NeuroRegeneration Sciences, Hong Kong Baptist University, Hong Kong Special Administrative Region; Institute of Environmental Science, Shanxi University, Taiyuan, PR China; State Key Laboratory of Environmental and Biological Analysis, Hong Kong Baptist University, Hong Kong Special Administrative Region.
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Chen JJ, He S, Fang L, Wang B, Bai SJ, Xie J, Zhou CJ, Wang W, Xie P. Age-specific differential changes on gut microbiota composition in patients with major depressive disorder. Aging (Albany NY) 2020; 12:2764-2776. [PMID: 32040443 PMCID: PMC7041727 DOI: 10.18632/aging.102775] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2019] [Accepted: 01/12/2020] [Indexed: 02/07/2023]
Abstract
Emerging evidence has shown the age-related changes in gut microbiota, but few studies were conducted to explore the effects of age on the gut microbiota in patients with major depressive disorder (MDD). This study was performed to identify the age-specific differential gut microbiota in MDD patients. In total, 70 MDD patients and 71 healthy controls (HCs) were recruited and divided into two groups: young group (age 18-29 years) and middle-aged group (age 30-59 years). The 16S rRNA gene sequences were extracted from the collected fecal samples. Finally, we found that the relative abundances of Firmicutes and Bacteroidetes were significantly decreased and increased, respectively, in young MDD patients as compared with young HCs, and the relative abundances of Bacteroidetes and Actinobacteria were significantly decreased and increased, respectively, in middle-aged MDD patients as compared with middle-aged HCs. Meanwhile, six and 25 differentially abundant bacterial taxa responsible for the differences between MDD patients (young and middle-aged, respectively) and their respective HCs were identified. Our results demonstrated that there were age-specific differential changes on gut microbiota composition in patients with MDD. Our findings would provide a novel perspective to uncover the pathogenesis underlying MDD.
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Affiliation(s)
- Jian-Jun Chen
- Institute of Life Sciences, Chongqing Medical University, Chongqing 400016, China.,Chongqing Key Laboratory of Cerebral Vascular Disease Research, Chongqing Medical University, Chongqing 400016, China
| | - Sirong He
- Department of Immunology, College of Basic Medicine, Chongqing Medical University, Chongqing 400016, China
| | - Liang Fang
- Chongqing Key Laboratory of Cerebral Vascular Disease Research, Chongqing Medical University, Chongqing 400016, China.,Department of Neurology, Yongchuan Hospital of Chongqing Medical University, Chongqing 402160, China
| | - Bin Wang
- Institute of Life Sciences, Chongqing Medical University, Chongqing 400016, China
| | - Shun-Jie Bai
- Department of Laboratory, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Jing Xie
- Department of Endocrinology and Nephrology, Chongqing University Central Hospital, Chongqing Emergency Medical Center, Chongqing 400014, China
| | - Chan-Juan Zhou
- NHC Key Laboratory of Diagnosis and Treatment on Brain Functional Diseases, Chongqing Medical University, Chongqing 400016, China
| | - Wei Wang
- Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Peng Xie
- Department of Neurology, Yongchuan Hospital of Chongqing Medical University, Chongqing 402160, China.,NHC Key Laboratory of Diagnosis and Treatment on Brain Functional Diseases, Chongqing Medical University, Chongqing 400016, China.,Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
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Manchia M, Paribello P, Arzedi C, Bocchetta A, Caria P, Cocco C, Congiu D, Cossu E, Dettori T, Frau DV, Garzilli M, Manca E, Meloni A, Montis MA, Mura A, Nieddu M, Noli B, Pinna F, Pisanu C, Robledo R, Severino G, Sogos V, Chillotti C, Carpiniello B, Del Zompo M, Ferri GL, Vanni R, Squassina A. A multidisciplinary approach to mental illness: do inflammation, telomere length and microbiota form a loop? A protocol for a cross-sectional study on the complex relationship between inflammation, telomere length, gut microbiota and psychiatric disorders. BMJ Open 2020; 10:e032513. [PMID: 31988227 PMCID: PMC7045141 DOI: 10.1136/bmjopen-2019-032513] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
INTRODUCTION Severe psychiatric disorders are typically associated with a significant reduction in life expectancy compared with the general population. Among the different hypotheses formulated to explain this observation, accelerated ageing has been increasingly recognised as the main culprit. At the same time, telomere shortening is becoming widely accepted as a proxy molecular marker of ageing. The present study aims to fill a gap in the literature by better defining the complex interaction/s between inflammation, age-related comorbidities, telomere shortening and gut microbiota in psychiatric disorders. METHODS AND ANALYSIS A cross-sectional study is proposed, recruiting 40 patients for each of three different diagnostic categories (bipolar disorder, schizophrenia and major depressive disorder) treated at the Section of Psychiatry and at the Unit of Clinical Pharmacology of the University Hospital Agency of Cagliari (Italy), compared with 40 age-matched and sex-matched non-psychiatric controls. Each group includes individuals suffering, or not, from age-related comorbidities, to account for the impact of these medical conditions on the biological make-up of recruited patients. The inflammatory state, microbiota composition and telomere length (TL) are assessed. ETHICS AND DISSEMINATION The study protocol was approved by the Ethics Committee of the University Hospital Agency of Cagliari (PG/2018/11693, 5 September 2018). The study is conducted in accordance with the principles of good clinical practice and the Declaration of Helsinki, and in compliance with the relevant Italian national legislation. Written, informed consent is obtained from all participants. Participation in the study is on a voluntary basis only. Patients will be part of the dissemination phase of the study results, during which a local conference will be organised and families of patients will also be involved. Moreover, findings will be published in one or more research papers and presented at national and international conferences, in posters or oral communications.
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Affiliation(s)
- Mirko Manchia
- Unit of Psychiatry, Department of Public Health, Clinical and Molecular Medicine, University of Cagliari, Cagliari, Italy
- Unit of Clinical Psychiatry, University Hospital Agency of Cagliari, Cagliari, Italy
- Department of Pharmacology, Dalhousie University, Halifax, Nova Scotia, Canada
| | - Pasquale Paribello
- Unit of Psychiatry, Department of Public Health, Clinical and Molecular Medicine, University of Cagliari, Cagliari, Italy
- Unit of Clinical Psychiatry, University Hospital Agency of Cagliari, Cagliari, Italy
| | - Carlo Arzedi
- Unit of Psychiatry, Department of Public Health, Clinical and Molecular Medicine, University of Cagliari, Cagliari, Italy
- Unit of Clinical Psychiatry, University Hospital Agency of Cagliari, Cagliari, Italy
| | - Alberto Bocchetta
- Unit of Clinical Pharmacology, University Hospital Agency of Cagliari, Cagliari, Italy
- Department of Biomedical Sciences, Section of Neuroscience and Clinical Pharmacology, University of Cagliari, Cagliari, Italy
| | - Paola Caria
- Unit of Biology and Genetics, Department of Biomedical Sciences, University of Cagliari, Cagliari, Italy
| | - Cristina Cocco
- Department of Biomedical Sciences, NEF Laboratory, University of Cagliari, Cagliari, Italy
| | - Donatella Congiu
- Department of Biomedical Sciences, Section of Neuroscience and Clinical Pharmacology, University of Cagliari, Cagliari, Italy
| | - Eleonora Cossu
- Unit of Psychiatry, Department of Public Health, Clinical and Molecular Medicine, University of Cagliari, Cagliari, Italy
- Unit of Clinical Psychiatry, University Hospital Agency of Cagliari, Cagliari, Italy
| | - Tinuccia Dettori
- Unit of Biology and Genetics, Department of Biomedical Sciences, University of Cagliari, Cagliari, Italy
| | - Daniela V Frau
- Unit of Biology and Genetics, Department of Biomedical Sciences, University of Cagliari, Cagliari, Italy
| | - Mario Garzilli
- Unit of Psychiatry, Department of Public Health, Clinical and Molecular Medicine, University of Cagliari, Cagliari, Italy
- Unit of Clinical Psychiatry, University Hospital Agency of Cagliari, Cagliari, Italy
| | - Elias Manca
- Department of Biomedical Sciences, NEF Laboratory, University of Cagliari, Cagliari, Italy
| | - Anna Meloni
- Department of Biomedical Sciences, Section of Neuroscience and Clinical Pharmacology, University of Cagliari, Cagliari, Italy
| | - Maria A Montis
- Unit of Psychiatry, Department of Public Health, Clinical and Molecular Medicine, University of Cagliari, Cagliari, Italy
- Unit of Clinical Psychiatry, University Hospital Agency of Cagliari, Cagliari, Italy
| | - Andrea Mura
- Unit of Psychiatry, Department of Public Health, Clinical and Molecular Medicine, University of Cagliari, Cagliari, Italy
- Unit of Clinical Psychiatry, University Hospital Agency of Cagliari, Cagliari, Italy
| | - Mariella Nieddu
- Unit of Biology and Genetics, Department of Biomedical Sciences, University of Cagliari, Cagliari, Italy
| | - Barbara Noli
- Department of Biomedical Sciences, NEF Laboratory, University of Cagliari, Cagliari, Italy
| | - Federica Pinna
- Unit of Psychiatry, Department of Public Health, Clinical and Molecular Medicine, University of Cagliari, Cagliari, Italy
- Unit of Clinical Psychiatry, University Hospital Agency of Cagliari, Cagliari, Italy
| | - Claudia Pisanu
- Department of Biomedical Sciences, Section of Neuroscience and Clinical Pharmacology, University of Cagliari, Cagliari, Italy
| | - Renato Robledo
- Unit of Biology and Genetics, Department of Biomedical Sciences, University of Cagliari, Cagliari, Italy
| | - Giovanni Severino
- Department of Biomedical Sciences, Section of Neuroscience and Clinical Pharmacology, University of Cagliari, Cagliari, Italy
| | - Valeria Sogos
- Department of Biomedical Sciences, Section of Cytomorphology, University of Cagliari, Cagliari, Italy
| | - Caterina Chillotti
- Unit of Clinical Pharmacology, University Hospital Agency of Cagliari, Cagliari, Italy
| | - Bernardo Carpiniello
- Unit of Psychiatry, Department of Public Health, Clinical and Molecular Medicine, University of Cagliari, Cagliari, Italy
- Unit of Clinical Psychiatry, University Hospital Agency of Cagliari, Cagliari, Italy
| | - Maria Del Zompo
- Unit of Clinical Pharmacology, University Hospital Agency of Cagliari, Cagliari, Italy
- Department of Biomedical Sciences, Section of Neuroscience and Clinical Pharmacology, University of Cagliari, Cagliari, Italy
| | - Gian Luca Ferri
- Department of Biomedical Sciences, NEF Laboratory, University of Cagliari, Cagliari, Italy
| | - Roberta Vanni
- Unit of Biology and Genetics, Department of Biomedical Sciences, University of Cagliari, Cagliari, Italy
| | - Alessio Squassina
- Department of Biomedical Sciences, Section of Neuroscience and Clinical Pharmacology, University of Cagliari, Cagliari, Italy
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Peng W, Huang J, Yang J, Zhang Z, Yu R, Fayyaz S, Zhang S, Qin YH. Integrated 16S rRNA Sequencing, Metagenomics, and Metabolomics to Characterize Gut Microbial Composition, Function, and Fecal Metabolic Phenotype in Non-obese Type 2 Diabetic Goto-Kakizaki Rats. Front Microbiol 2020; 10:3141. [PMID: 32038574 PMCID: PMC6984327 DOI: 10.3389/fmicb.2019.03141] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2019] [Accepted: 12/27/2019] [Indexed: 12/22/2022] Open
Abstract
Type 2 diabetes mellitus (T2DM) is one of the most prevalent endocrine diseases in the world. Recent studies have shown that dysbiosis of the gut microbiota may be an important contributor to T2DM pathogenesis. However, the mechanisms underlying the roles of the gut microbiome and fecal metabolome in T2DM have not been characterized. Recently, the Goto-Kakizaki (GK) rat model of T2DM was developed to study the clinical symptoms and characteristics of human T2DM. To further characterize T2DM pathogenesis, we combined multi-omics techniques, including 16S rRNA gene sequencing, metagenomic sequencing, and metabolomics, to analyze gut microbial compositions and functions, and further characterize fecal metabolomic profiles in GK rats. Our results showed that gut microbial compositions were significantly altered in GK rats, as evidenced by reduced microbial diversity, altered microbial taxa distribution, and alterations in the interaction network of the gut microbiome. Functional analysis based on the cluster of orthologous groups (COG) and Kyoto Encyclopedia of Genes and Genomes (KEGG) annotations suggested that 5 functional COG categories belonged to the metabolism cluster and 33 KEGG pathways related to metabolic pathways were significantly enriched in GK rats. Metabolomics profiling identified 53 significantly differentially abundant metabolites in GK rats, including lipids and lipid-like molecules. These lipids were enriched in the glycerophospholipid metabolic pathway. Moreover, functional correlation analysis showed that some altered gut microbiota families, such as Verrucomicrobiaceae and Bacteroidaceae, significantly correlated with alterations in fecal metabolites. Collectively, the results suggested that an altered gut microbiota is associated with T2DM pathogenesis.
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Affiliation(s)
- Weijun Peng
- Department of Integrated Traditional Chinese and Western Medicine, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Jianhua Huang
- Hunan Academy of Chinese Medicine, Hunan University of Chinese Medicine, Changsha, China.,Hunan Key Laboratory of TCM Prescription and Syndromes Translational Medicine Hunan, Changsha, China
| | - Jingjing Yang
- Department of Integrated Traditional Chinese and Western Medicine, Xiangya Hospital, Central South University, Changsha, China
| | - Zheyu Zhang
- Department of Integrated Traditional Chinese and Western Medicine, The Second Xiangya Hospital, Central South University, Changsha, China.,Department of Gastroenterology, Xiangya Hospital, Central South University, Changsha, China
| | - Rong Yu
- Hunan Key Laboratory of TCM Prescription and Syndromes Translational Medicine Hunan, Changsha, China
| | - Sharmeen Fayyaz
- H.E.J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi, Pakistan
| | - Shuihan Zhang
- Hunan Academy of Chinese Medicine, Hunan University of Chinese Medicine, Changsha, China
| | - Yu-Hui Qin
- Hunan Academy of Chinese Medicine, Hunan University of Chinese Medicine, Changsha, China
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Zhao X, Zhang Y, Guo R, Yu W, Zhang F, Wu F, Shang J. The Alteration in Composition and Function of Gut Microbiome in Patients with Type 2 Diabetes. J Diabetes Res 2020; 2020:8842651. [PMID: 33224990 PMCID: PMC7673948 DOI: 10.1155/2020/8842651] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/29/2020] [Accepted: 10/21/2020] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND Diabetes mellitus (DM) has become one of the most common chronic metabolic diseases worldwide. Due to the increasing prevalence and various complications, diabetes brings about a huge financial burden to DM patients. Nowadays, more and more studies reveal the relationship between diseases and gut microbial community. We aimed to explore the alteration in composition and function of the gut microbiome in T2DM patients. METHODS A total of 137 patients with diabetes and 179 age- and gender-matched healthy controls selected from the healthy people sample center in the First Affiliated Hospital of Zhengzhou University were divided into the DM group and the Con group, respectively. We collected their venous blood for laboratory tests and stool samples for 16S rRNA sequencing. The comparison between the two groups including both composition and function of the gut microbiome is presented. RESULTS We found that the α-diversity of bacterial taxa in the DM group had an evident decrease compared to that in the Con group. At the phylum level, the DM group had an obvious decrease of Bacteroidetes and a marked increase of Proteobacteria, Actinobacteria, and Verrucomicrobia. At the genus level, Bacteroides and Prevotella decreased the most while Escherichia-Shigella, Lachnospiraceae_incertae_sedis, Subdoligranulum, Enterococcus, and Klebsiella had different degrees of expansion in the DM group. The ROC based on 246 optimum OTUs had very high test efficiency with an AUC of 92.25% in the training set and 90.48% in the test set. As for prediction of metabolic function, the gut microbiome of DM patients was predicted to be more active in environmental information processing and human diseases but less in metabolism. CONCLUSION We observed alteration of composition and function of the gut microbiome in the DM group. These changes may provide a new treatment strategy for DM patients and new research targets.
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Affiliation(s)
- Xue Zhao
- Department of Nephrology, The First Affiliated Hospital of Zhengzhou University, No. 1 of East Jianshe Road, Zhengzhou, Henan, China 450052
- Department of Nephrology, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jingwuweiqi 324, Huaiyin District, Jinan, Shandong, China
| | - Yiding Zhang
- Department of Nephrology, The First Affiliated Hospital of Zhengzhou University, No. 1 of East Jianshe Road, Zhengzhou, Henan, China 450052
| | - Ruixue Guo
- Department of Nephrology, The First Affiliated Hospital of Zhengzhou University, No. 1 of East Jianshe Road, Zhengzhou, Henan, China 450052
| | - Wei Yu
- Department of Nephrology, The First Affiliated Hospital of Zhengzhou University, No. 1 of East Jianshe Road, Zhengzhou, Henan, China 450052
| | - Fanliang Zhang
- Department of Nephrology, The First Affiliated Hospital of Zhengzhou University, No. 1 of East Jianshe Road, Zhengzhou, Henan, China 450052
| | - Feng Wu
- Department of Nephrology, The First Affiliated Hospital of Zhengzhou University, No. 1 of East Jianshe Road, Zhengzhou, Henan, China 450052
| | - Jin Shang
- Department of Nephrology, The First Affiliated Hospital of Zhengzhou University, No. 1 of East Jianshe Road, Zhengzhou, Henan, China 450052
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48
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Chaiwiang N, Poyomtip T. Microbial dysbiosis and microbiota-gut-retina axis: The lesson from brain neurodegenerative diseases to primary open-angle glaucoma pathogenesis of autoimmunity. Acta Microbiol Immunol Hung 2019; 66:541-558. [PMID: 31786943 DOI: 10.1556/030.66.2019.038] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
In recent years, microbiota-associated neurodegenerative diseases have been exploited and provided new insight into disease pathogenesis. However, primary open-angle glaucoma (POAG), known as a complex neurodegenerative disease resulting from retinal ganglion cell death and optic nerve damage, can cause irreversible blindness and visual field loss. POAG, which shares several similarities with Parkinson's disease (PD) and Alzheimer's disease (AD), has limited studies and slow progression in the understanding of pathogenesis when compared to PD and AD. In this review, we summarized the current knowledge of POAG and commensal microbiota, combined with several lines of evidence in PD and AD to propose a possible hypothesis for POAG pathogenesis: microorganisms cause glaucoma via gut-retina axis, resulting in autoantibodies and autoreactive T cells that lead to autoimmunity. Furthermore, dual-hit hypothesis, an example of a commensal pathogen that causes PD, was partially exported in POAG. Finally, future perspectives are suggested to expand understanding of POAG.
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Affiliation(s)
| | - Teera Poyomtip
- 1 Faculty of Optometry, Ramkhamhaeng University, Bangkok, Thailand
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Zhang Z, Tang H, Chen P, Xie H, Tao Y. Demystifying the manipulation of host immunity, metabolism, and extraintestinal tumors by the gut microbiome. Signal Transduct Target Ther 2019; 4:41. [PMID: 31637019 PMCID: PMC6799818 DOI: 10.1038/s41392-019-0074-5] [Citation(s) in RCA: 137] [Impact Index Per Article: 27.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2019] [Revised: 08/27/2019] [Accepted: 08/27/2019] [Indexed: 02/06/2023] Open
Abstract
The trillions of microorganisms in the gut microbiome have attracted much attention recently owing to their sophisticated and widespread impacts on numerous aspects of host pathophysiology. Remarkable progress in large-scale sequencing and mass spectrometry has increased our understanding of the influence of the microbiome and/or its metabolites on the onset and progression of extraintestinal cancers and the efficacy of cancer immunotherapy. Given the plasticity in microbial composition and function, microbial-based therapeutic interventions, including dietary modulation, prebiotics, and probiotics, as well as fecal microbial transplantation, potentially permit the development of novel strategies for cancer therapy to improve clinical outcomes. Herein, we summarize the latest evidence on the involvement of the gut microbiome in host immunity and metabolism, the effects of the microbiome on extraintestinal cancers and the immune response, and strategies to modulate the gut microbiome, and we discuss ongoing studies and future areas of research that deserve focused research efforts.
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Affiliation(s)
- Ziying Zhang
- Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Department of Pathology, Xiangya Hospital, Central South University, 410078 Hunan, China
- NHC Key Laboratory of Carcinogenesis (Central South University), Cancer Research Institute and School of Basic Medicine, Central South University, 410078 Changsha, Hunan China
- Hunan Key Laboratory of Tumor Models and Individualized Medicine, Department of Thoracic Surgery, Second Xiangya Hospital, Central South University, 410011 Changsha, China
- Department of Oncology, Third Xiangya Hospital, Central South University, 410013 Changsha, China
| | - Haosheng Tang
- Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Department of Pathology, Xiangya Hospital, Central South University, 410078 Hunan, China
- NHC Key Laboratory of Carcinogenesis (Central South University), Cancer Research Institute and School of Basic Medicine, Central South University, 410078 Changsha, Hunan China
- Hunan Key Laboratory of Tumor Models and Individualized Medicine, Department of Thoracic Surgery, Second Xiangya Hospital, Central South University, 410011 Changsha, China
| | - Peng Chen
- Department of Urology, Xiangya Hospital, Central South University, 410008 Changsha, China
| | - Hui Xie
- Department of Thoracic and Cardiovascular Surgery, Second Xiangya Hospital of Central South University, 410011 Changsha, China
| | - Yongguang Tao
- Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Department of Pathology, Xiangya Hospital, Central South University, 410078 Hunan, China
- NHC Key Laboratory of Carcinogenesis (Central South University), Cancer Research Institute and School of Basic Medicine, Central South University, 410078 Changsha, Hunan China
- Hunan Key Laboratory of Tumor Models and Individualized Medicine, Department of Thoracic Surgery, Second Xiangya Hospital, Central South University, 410011 Changsha, China
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50
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Viltard M, Durand S, Pérez-Lanzón M, Aprahamian F, Lefevre D, Leroy C, Madeo F, Kroemer G, Friedlander G. The metabolomic signature of extreme longevity: naked mole rats versus mice. Aging (Albany NY) 2019; 11:4783-4800. [PMID: 31346149 PMCID: PMC6682510 DOI: 10.18632/aging.102116] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2019] [Accepted: 07/16/2019] [Indexed: 04/11/2023]
Abstract
The naked mole-rat (Heterocephalus glaber) is characterized by a more than tenfold higher life expectancy compared to another rodent species of the same size, namely, the laboratory mouse (Mus musculus). We used mass spectrometric metabolomics to analyze circulating plasma metabolites in both species at different ages. Interspecies differences were much more pronounced than age-associated alterations in the metabolome. Such interspecies divergences affected multiple metabolic pathways involving amino, bile and fatty acids as well as monosaccharides and nucleotides. The most intriguing metabolites were those that had previously been linked to pro-health and antiaging effects in mice and that were significantly increased in the long-lived rodent compared to its short-lived counterpart. This pattern applies to α-tocopherol (also known as vitamin E) and polyamines (in particular cadaverine, N8-acetylspermidine and N1,N8-diacetylspermidine), all of which were more abundant in naked mole-rats than in mice. Moreover, the age-associated decline in spermidine and N1-acetylspermidine levels observed in mice did not occur, or is even reversed (in the case of N1-acetylspermidine) in naked mole-rats. In short, the present metabolomics analysis provides a series of testable hypotheses to explain the exceptional longevity of naked mole-rats.
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Affiliation(s)
- Mélanie Viltard
- Fondation pour la Recherche en Physiologie, Brussels, Belgium
| | - Sylvère Durand
- Metabolomics and Cell Biology Platforms, Institut Gustave Roussy, Villejuif, France
- Equipe Labellisée par la Ligue contre le Cancer, Université de Paris, Sorbonne Université, INSERM U1138, Centre de Recherche des Cordeliers, Paris, France
| | - Maria Pérez-Lanzón
- Metabolomics and Cell Biology Platforms, Institut Gustave Roussy, Villejuif, France
- Equipe Labellisée par la Ligue contre le Cancer, Université de Paris, Sorbonne Université, INSERM U1138, Centre de Recherche des Cordeliers, Paris, France
- Faculté de Médecine, Université de Paris Saclay, Kremlin Bicêtre, France
| | - Fanny Aprahamian
- Metabolomics and Cell Biology Platforms, Institut Gustave Roussy, Villejuif, France
- Equipe Labellisée par la Ligue contre le Cancer, Université de Paris, Sorbonne Université, INSERM U1138, Centre de Recherche des Cordeliers, Paris, France
| | - Deborah Lefevre
- Metabolomics and Cell Biology Platforms, Institut Gustave Roussy, Villejuif, France
- Equipe Labellisée par la Ligue contre le Cancer, Université de Paris, Sorbonne Université, INSERM U1138, Centre de Recherche des Cordeliers, Paris, France
| | - Christine Leroy
- INSERM UMR_S1151 CNRS UMR8253 Institut Necker-Enfants Malades (INEM), Paris, France
| | - Frank Madeo
- Institute of Molecular Biosciences, University of Graz, NAWI Graz, Graz, Austria
- BioTechMed Graz, Graz, Austria
| | - Guido Kroemer
- Metabolomics and Cell Biology Platforms, Institut Gustave Roussy, Villejuif, France
- Equipe Labellisée par la Ligue contre le Cancer, Université de Paris, Sorbonne Université, INSERM U1138, Centre de Recherche des Cordeliers, Paris, France
- Pôle de Biologie, Hôpital Européen Georges Pompidou, AP-HP, Paris, France
- Suzhou Institute for Systems Medicine, Chinese Academy of Sciences, Suzhou, China
- Karolinska Institute, Department of Women's and Children's Health, Karolinska University Hospital, Stockholm, Sweden
| | - Gérard Friedlander
- INSERM UMR_S1151 CNRS UMR8253 Institut Necker-Enfants Malades (INEM), Paris, France
- Service de Physiologie et Explorations Fonctionnelles, Hôpital Européen Georges Pompidou, Assistance Publique-Hôpitaux de Paris, Paris, France
- Université de Paris - Paris Descartes, Faculté de Médecine, Paris, France
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