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Li Y, Wang Y, Zhang T. Fecal Microbiota Transplantation in Autism Spectrum Disorder. Neuropsychiatr Dis Treat 2022; 18:2905-2915. [PMID: 36544550 PMCID: PMC9762410 DOI: 10.2147/ndt.s382571] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/15/2022] [Accepted: 12/06/2022] [Indexed: 12/23/2022] Open
Abstract
Autism spectrum disorder (ASD) is a group of neurodevelopmental disorders that begin in infancy. In recent years, the incidence of ASD in the world is increasing year by year. At present, the etiology and pathogenesis of ASD are not clear, and effective treatments are still lacking. In addition to neurobehavioral symptoms, children with ASD often have obvious gastrointestinal symptoms. Gut microbiota is a large microbial community in the human gut, which is closely related to the nervous system and can affect brain development and behavior through the neuroendocrine, neuroimmune and autonomic nervous systems, forming a microbiota-gut-brain axis connection. Recent studies have shown that children with ASD have significant gut microbiota and metabolic disorders, and fecal microbiota transplantation (FMT) is expected to improve ASD-related symptoms by regulating gut microbiota and metabolism. This review paper will therefore focus on FMT in the treatment of ASD, and FMT is effective in improving gastrointestinal and neurobehavioral symptoms in children with ASD.
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Affiliation(s)
- Youran Li
- Department of Gastroenterology, Hepatology and Nutrition, Shanghai Children's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, People's Republic of China
| | - Yizhong Wang
- Department of Gastroenterology, Hepatology and Nutrition, Shanghai Children's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, People's Republic of China.,Institute of Pediatric Infection, Immunity and Critical Care Medicine, School of Medicine, Shanghai Jiao Tong University, Shanghai, People's Republic of China
| | - Ting Zhang
- Department of Gastroenterology, Hepatology and Nutrition, Shanghai Children's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, People's Republic of China.,Institute of Pediatric Infection, Immunity and Critical Care Medicine, School of Medicine, Shanghai Jiao Tong University, Shanghai, People's Republic of China
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Tataru C, Martin A, Dunlap K, Peras M, Chrisman BS, Rutherford E, Deitzler GE, Phillips A, Yin X, Sabino K, Hannibal RL, Hartono W, Lin M, Raack E, Wu Y, DeSantis TZ, Iwai S, Wall DP, David MM. Longitudinal study of stool-associated microbial taxa in sibling pairs with and without autism spectrum disorder. ISME COMMUNICATIONS 2021; 1:80. [PMID: 37938270 PMCID: PMC9723651 DOI: 10.1038/s43705-021-00080-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/12/2021] [Revised: 09/24/2021] [Accepted: 11/18/2021] [Indexed: 05/01/2023]
Abstract
Autism Spectrum Disorder (ASD) is a complex neurodevelopmental disorder influenced by both genetic and environmental factors. Recently, gut dysbiosis has emerged as a powerful contributor to ASD symptoms. In this study, we recruited over 100 age-matched sibling pairs (between 2 and 8 years old) where one had an Autism ASD diagnosis and the other was developing typically (TD) (432 samples total). We collected stool samples over four weeks, tracked over 100 lifestyle and dietary variables, and surveyed behavior measures related to ASD symptoms. We identified 117 amplicon sequencing variants (ASVs) that were significantly different in abundance between sibling pairs across all three timepoints, 11 of which were supported by at least two contrast methods. We additionally identified dietary and lifestyle variables that differ significantly between cohorts, and further linked those variables to the ASVs they statistically relate to. Overall, dietary and lifestyle features were explanatory of ASD phenotype using logistic regression, however, global compositional microbiome features were not. Leveraging our longitudinal behavior questionnaires, we additionally identified 11 ASVs associated with changes in reported anxiety over time within and across all individuals. Lastly, we find that overall microbiome composition (beta-diversity) is associated with specific ASD-related behavioral characteristics.
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Affiliation(s)
- Christine Tataru
- Department of Microbiology, Oregon State University, Corvallis, OR, USA.
| | - Austin Martin
- Department of Microbiology, Oregon State University, Corvallis, OR, USA
| | - Kaitlyn Dunlap
- Departments of Pediatrics (Systems Medicine), Biomedical Data Science, and Psychiatry and Behavioral Sciences, Stanford University, Stanford, CA, USA
| | | | - Brianna S Chrisman
- Departments of Pediatrics (Systems Medicine), Biomedical Data Science, and Psychiatry and Behavioral Sciences, Stanford University, Stanford, CA, USA
- Department of Bioengineering, Stanford University, Stanford, CA, USA
| | | | - Grace E Deitzler
- Department of Microbiology, Oregon State University, Corvallis, OR, USA
| | | | | | | | | | | | | | | | | | | | | | - Dennis P Wall
- Departments of Pediatrics (Systems Medicine), Biomedical Data Science, and Psychiatry and Behavioral Sciences, Stanford University, Stanford, CA, USA
- Department of Biomedical Data Science, Stanford University, Stanford, CA, USA
- Department of Psychiatry and Behavioral Sciences, Stanford University, Stanford, CA, USA
| | - Maude M David
- Department of Microbiology, Oregon State University, Corvallis, OR, USA.
- Department of Pharmaceutical Sciences, Oregon State University, Corvallis, OR, USA.
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53
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He T, Cheng X, Xing C. The gut microbial diversity of colon cancer patients and the clinical significance. Bioengineered 2021; 12:7046-7060. [PMID: 34551683 PMCID: PMC8806656 DOI: 10.1080/21655979.2021.1972077] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2021] [Revised: 08/17/2021] [Accepted: 08/20/2021] [Indexed: 12/31/2022] Open
Abstract
The microbial diversity and communities in the excrement of healthy and patients suffered from cancer were identified by 16SrDNA sequencing performed on the Illumina Hi Seq sequencing platform. The microbial difference was also analyzed. The sequencing results showed high quality of the data, and the microbial communities were more various in the excrement of cancer patients. And the abundance of Firmicutes phylum was significantly reduced in cancer group. The phylum of Fermicutes, Bacteroidetes in cancer group are significantly down-regulated and up-regulated compared with normal group. The species of Faecalibacterium prausnitzii, Bateroides vulgatus and Fusicatenibacter saccharivorans are significantly lower in cancer group than that in normal group (P< 0.05). The species of Prevetella copri, M. uniformis, and Escherichia coli are significantly higher in the cancer group than that in normal group. The comparative results indicated that beneficial bacterium significantly decreased in colorectal cancer (CRC) group, and harmful bacterium significantly increased in the colon cancer group, meanwhile the acidity, sugar increased whereas the oxygen content decreased to facilitate the growth of harmful bacterium. The results would provide microbial approaches for the treatment of colon cancer by the intake of beneficial microbial communities.
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Affiliation(s)
- Tengfei He
- Department of Genenal Surgery, The Second Affiliated Hospital of Soochow University, Suzhou, China
| | - Xiaohui Cheng
- Department of Genenal Surgery, The Second Affiliated Hospital of Soochow University, Suzhou, China
| | - Chungen Xing
- Department of Genenal Surgery, The Second Affiliated Hospital of Soochow University, Suzhou, China
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54
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Ding H, Yi X, Zhang X, Wang H, Liu H, Mou WW. Imbalance in the Gut Microbiota of Children With Autism Spectrum Disorders. Front Cell Infect Microbiol 2021; 11:572752. [PMID: 34790583 PMCID: PMC8591234 DOI: 10.3389/fcimb.2021.572752] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Accepted: 05/18/2021] [Indexed: 01/02/2023] Open
Abstract
Background Autism spectrum disorder (ASD) are complex behavioral changes manifesting early in childhood, which impacts how an individual perceives and socializes with others. The study aims to assess the disparities in gut microbiota (GM) amongst healthy controls and children with ASD. Methods The study was performed on 25 children with ASD and 20 healthy children. Autistic symptoms were diagnosed and assessed with the Diagnostic and Statistical Manual for Mental Disorders and the Autism Treatment Evaluation Checklist (ATEC). Gastrointestinal (GI) symptoms were assessed with a GI Severity Index (GSI) questionnaire. The fecal bacteria composition was investigated by the high−throughput sequencing of the V3–V4 region of the 16S rRNA gene. The alpha diversity was estimated using the Shannon, Chao, and ACE indexes. The unweighted UniFrac analysis and the PCA plots were used to represent the beta diversity. LDA and LEfSe were used to assess the effect sizes of each abundant differential taxon. Results Children with high GSI scores had much higher ATEC Total scores than those with lower GSI-scores. GI symptoms were strongly associated with symptoms of ASD. There was no difference in Chao, ACE, and Shannon indexes between ASD patients and healthy controls. Both groups showed a significant microbiota structure clustering in the plotted PCAs and significant differences in its composition at the family, order, genus, and phyla levels. There were also noteworthy overall relative differences in Actinobacteria and Firmicutes between both groups. Conclusions This study shows the relationship between the clinical manifestations of Autistic symptoms and GI symptoms. ASD patients have dysbiosis of gut microbiota, which may be related to the onset of ASD. These findings may be beneficial for developing ASD symptoms by changing gut microbiota.
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Affiliation(s)
- Hongfang Ding
- Department of Pediatrics, Shengli Oil Field Central Hospital, Dongying, China
| | - Xinhao Yi
- Department of Central Laboratory, Shengli Oil Field Central Hospital, Dongying, China
| | - Xiaohua Zhang
- Department of Pediatrics, Shengli Oil Field Central Hospital, Dongying, China
| | - Hui Wang
- Department of Pediatrics, Shengli Oil Field Central Hospital, Dongying, China
| | - Hui Liu
- Department of Pediatrics, Shengli Oil Field Central Hospital, Dongying, China
| | - Wei-Wei Mou
- Department of Pediatrics, Shengli Oil Field Central Hospital, Dongying, China
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Kittana M, Ahmadani A, Al Marzooq F, Attlee A. Dietary Fat Effect on the Gut Microbiome, and Its Role in the Modulation of Gastrointestinal Disorders in Children with Autism Spectrum Disorder. Nutrients 2021; 13:3818. [PMID: 34836074 PMCID: PMC8618510 DOI: 10.3390/nu13113818] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Revised: 10/23/2021] [Accepted: 10/24/2021] [Indexed: 12/19/2022] Open
Abstract
Children with autism spectrum disorder (ASD) report a higher frequency and severity of gastrointestinal disorders (GID) than typically developing (TD) children. GID-associated discomfort increases feelings of anxiety and frustration, contributing to the severity of ASD. Emerging evidence supports the biological intersection of neurodevelopment and microbiome, indicating the integral contribution of GM in the development and function of the nervous system, and mental health, and disease balance. Dysbiotic GM could be a contributing factor in the pathogenesis of GID in children with ASD. High-fat diets may modulate GM through accelerated growth of bile-tolerant bacteria, altered bacterial ratios, and reduced bacterial diversity, which may increase the risk of GID. Notably, saturated fatty acids are considered to have a pronounced effect on the increase of bile-tolerant bacteria and reduction in microbial diversity. Additionally, omega-3 exerts a favorable impact on GM and gut health due to its anti-inflammatory properties. Despite inconsistencies in the data elaborated in the review, the dietary fat composition, as part of an overall dietary intervention, plays a role in modulating GID, specifically in ASD, due to the altered microbiome profile. This review emphasizes the need to conduct future experimental studies investigating the effect of diets with varying fatty acid compositions on GID-specific microbiome profiles in children with ASD.
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Affiliation(s)
- Monia Kittana
- Department of Nutrition and Health, College of Medicine and Health Sciences, United Arab Emirates University, Al Ain P.O. Box 15551, United Arab Emirates; (M.K.); (A.A.)
| | - Asma Ahmadani
- Department of Nutrition and Health, College of Medicine and Health Sciences, United Arab Emirates University, Al Ain P.O. Box 15551, United Arab Emirates; (M.K.); (A.A.)
| | - Farah Al Marzooq
- Department of Medical Microbiology and Immunology, College of Medicine and Health Sciences, United Arab Emirates University, Al Ain P.O. Box 15551, United Arab Emirates;
| | - Amita Attlee
- Department of Nutrition and Health, College of Medicine and Health Sciences, United Arab Emirates University, Al Ain P.O. Box 15551, United Arab Emirates; (M.K.); (A.A.)
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Lombardi M, Troisi J. Gut Reactions: How Far Are We from Understanding and Manipulating the Microbiota Complexity and the Interaction with Its Host? Lessons from Autism Spectrum Disorder Studies. Nutrients 2021; 13:3492. [PMID: 34684493 PMCID: PMC8538077 DOI: 10.3390/nu13103492] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2021] [Revised: 09/27/2021] [Accepted: 09/29/2021] [Indexed: 12/11/2022] Open
Abstract
Autism is a group of neurodevelopmental disorders, characterized by early onset difficulties in social communication and restricted, repetitive behaviors and interests. It is characterized by familial aggregation, suggesting that genetic factors play a role in disease development, in addition to developmentally early environmental factors. Here, we review the role of the gut microbiome in autism, as it has been characterized in case-control studies. We discuss how methodological differences may have led to inconclusive or contradictory results, even though a disproportion between harmful and beneficial bacteria is generally described in autism. Furthermore, we review the studies concerning the effects of gut microbial-based and dietary interventions on autism symptoms. Also, in this case, the results are not comparable due to the lack of standardized methods. Therefore, autism-specific microbiome signatures and, consequently, possible microbiome-oriented interventions are far from being recognized. We argue that a multi-omic longitudinal implementation may be useful to study metabolic changes connected to microbiome changes.
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Affiliation(s)
- Martina Lombardi
- Department of Chemistry and Biology “A. Zambelli”, University of Salerno, Via Giovanni Paolo II, 132-84084 Fisciano, SA, Italy; or
- Theoreo Srl Spin Off Company, University of Salerno, Via Giovanni Paolo II, 132-84084 Fisciano, SA, Italy
| | - Jacopo Troisi
- Department of Chemistry and Biology “A. Zambelli”, University of Salerno, Via Giovanni Paolo II, 132-84084 Fisciano, SA, Italy; or
- Theoreo Srl Spin Off Company, University of Salerno, Via Giovanni Paolo II, 132-84084 Fisciano, SA, Italy
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57
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Impact of Zinc Oxide Nanoparticles on the Composition of Gut Microbiota in Healthy and Autism Spectrum Disorder Children. MATERIALS 2021; 14:ma14195488. [PMID: 34639886 PMCID: PMC8509275 DOI: 10.3390/ma14195488] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Revised: 09/09/2021] [Accepted: 09/14/2021] [Indexed: 01/25/2023]
Abstract
Autism spectrum disorder (ASD) seriously affects children’s health, while the gut microbiome has been widely hypothesized to be involved in the regulation of ASD behavior. This study investigated and compared the number, diversity, and population structure of gut microbiota between healthy and ASD children and their susceptibility to zinc oxide nanoparticles (ZnONPs) based on the measurement of live cell number, living/dead bacterial staining test, flow cytometry observation and bacterial community analysis using 16S rRNA gene amplicon sequencing. The result of this present study revealed that ASD children not only significantly reduced the live cell number and the community diversity of gut bacteria, but also changed the gut bacterial community composition compared to the healthy children. In addition, this result revealed that ZnONPs significantly reduced the number of live bacterial cells in the gut of healthy children, but not in that of ASD children. In contrast, ZnONPs generally increased the gut bacterial community diversity in both ASD and healthy children, while a greater increase was found in ASD children than that of healthy children. Furthermore, this study successfully isolated and identified some representative nanoparticle-resistant bacteria based on the color, shape, and edge of colony as well as the 16S rDNA sequence analysis. The community of nanoparticle-resistant bacteria differed in between healthy and ASD children. Indeed, the representative strains 6-1, 6-2, 6-3 and 6-4 from healthy children were identified as Bacillus anthracis, Escherichia coli, Bacillus cereus and Escherichia coli with sequence similarity of 97.86%, 99.86%, 99.03% and 99.65%, respectively, while the representative strains 8-1, 8-2 and 8-3 from ASD children were identified as Bacillus cereus, with sequence similarities of 99.58%, 99.72% and 99.72%, respectively. Overall, this study demonstrated that ZnONPs caused a change in number, diversity, and species composition of gut bacteria, but differed in healthy and ASD children.
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58
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Ge T, Yao X, Zhao H, Yang W, Zou X, Peng F, Li B, Cui R. Gut microbiota and neuropsychiatric disorders: Implications for neuroendocrine-immune regulation. Pharmacol Res 2021; 173:105909. [PMID: 34543739 DOI: 10.1016/j.phrs.2021.105909] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Revised: 09/08/2021] [Accepted: 09/15/2021] [Indexed: 12/17/2022]
Abstract
Recently, increasing evidence has shown gut microbiota dysbiosis might be implicated in the physiological mechanisms of neuropsychiatric disorders. Altered microbial community composition, diversity and distribution traits have been reported in neuropsychiatric disorders. However, the exact pathways by which the intestinal microbiota contribute to neuropsychiatric disorders remain largely unknown. Given that the onset and progression of neuropsychiatric disorders are characterized with complicated alterations of neuroendocrine and immunology, both of which can be continually affected by gut microbiota via "microbiome-gut-brain axis". Thus, we assess the complicated crosstalk between neuroendocrine and immunological regulation might underlie the mechanisms of gut microbiota associated with neuropsychiatric disorders. In this review, we summarized clinical and preclinical evidence on the role of the gut microbiota in neuropsychiatry disorders, especially in mood disorders and neurodevelopmental disorders. This review may elaborate the potential mechanisms of gut microbiota implicating in neuroendocrine-immune regulation and provide a comprehensive understanding of physiological mechanisms for neuropsychiatric disorders.
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Affiliation(s)
- Tongtong Ge
- Jilin Provincial Key Laboratory on Molecular and Che mical Genetic, Second Hospital of Jilin University, Changchun, China
| | - Xiaoxiao Yao
- Department of Hepatopancreatobiliary Surgery, The Second Hospital of Jilin University, Changchun, China
| | - Haisheng Zhao
- Jilin Provincial Key Laboratory on Molecular and Che mical Genetic, Second Hospital of Jilin University, Changchun, China
| | - Wei Yang
- Jilin Provincial Key Laboratory on Molecular and Che mical Genetic, Second Hospital of Jilin University, Changchun, China
| | - Xiaohan Zou
- Jilin Provincial Key Laboratory on Molecular and Che mical Genetic, Second Hospital of Jilin University, Changchun, China
| | - Fanzhen Peng
- Jilin Provincial Key Laboratory on Molecular and Che mical Genetic, Second Hospital of Jilin University, Changchun, China
| | - Bingjin Li
- Jilin Provincial Key Laboratory on Molecular and Che mical Genetic, Second Hospital of Jilin University, Changchun, China
| | - Ranji Cui
- Jilin Provincial Key Laboratory on Molecular and Che mical Genetic, Second Hospital of Jilin University, Changchun, China.
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Peralta-Marzal LN, Prince N, Bajic D, Roussin L, Naudon L, Rabot S, Garssen J, Kraneveld AD, Perez-Pardo P. The Impact of Gut Microbiota-Derived Metabolites in Autism Spectrum Disorders. Int J Mol Sci 2021; 22:10052. [PMID: 34576216 PMCID: PMC8470471 DOI: 10.3390/ijms221810052] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2021] [Revised: 09/13/2021] [Accepted: 09/14/2021] [Indexed: 12/12/2022] Open
Abstract
Autism Spectrum Disorder (ASD) is a set of neurodevelopmental disorders characterised by behavioural impairment and deficiencies in social interaction and communication. A recent study estimated that 1 in 89 children have developed some form of ASD in European countries. Moreover, there is no specific treatment and since ASD is not a single clinical entity, the identification of molecular biomarkers for diagnosis remains challenging. Besides behavioural deficiencies, individuals with ASD often develop comorbid medical conditions including intestinal problems, which may reflect aberrations in the bidirectional communication between the brain and the gut. The impact of faecal microbial composition in brain development and behavioural functions has been repeatedly linked to ASD, as well as changes in the metabolic profile of individuals affected by ASD. Since metabolism is one of the major drivers of microbiome-host interactions, this review aims to report emerging literature showing shifts in gut microbiota metabolic function in ASD. Additionally, we discuss how these changes may be involved in and/or perpetuate ASD pathology. These valuable insights can help us to better comprehend ASD pathogenesis and may provide relevant biomarkers for improving diagnosis and identifying new therapeutic targets.
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Affiliation(s)
- Lucía N. Peralta-Marzal
- Division of Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Faculty of Science, Utrecht University, 3584 CG Utrecht, The Netherlands; (N.P.); (J.G.); (A.D.K.)
| | - Naika Prince
- Division of Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Faculty of Science, Utrecht University, 3584 CG Utrecht, The Netherlands; (N.P.); (J.G.); (A.D.K.)
| | - Djordje Bajic
- Department of Ecology and Evolutionary Biology, Yale University, New Haven, CT 06511, USA;
- Microbial Sciences Institute, Yale University, West Haven, CT 06516, USA
| | - Léa Roussin
- Micalis Institute, INRAE, AgroParisTech, Université Paris-Saclay, 78350 Jouy-en-Josas, France; (L.R.); (S.R.)
| | - Laurent Naudon
- CNRS, Micalis Institute, INRAE, AgroParisTech, Université Paris-Saclay, 78350 Jouy-en-Josas, France;
| | - Sylvie Rabot
- Micalis Institute, INRAE, AgroParisTech, Université Paris-Saclay, 78350 Jouy-en-Josas, France; (L.R.); (S.R.)
| | - Johan Garssen
- Division of Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Faculty of Science, Utrecht University, 3584 CG Utrecht, The Netherlands; (N.P.); (J.G.); (A.D.K.)
- Danone Nutricia Research, 3584 CT Utrecht, The Netherlands
| | - Aletta D. Kraneveld
- Division of Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Faculty of Science, Utrecht University, 3584 CG Utrecht, The Netherlands; (N.P.); (J.G.); (A.D.K.)
| | - Paula Perez-Pardo
- Division of Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Faculty of Science, Utrecht University, 3584 CG Utrecht, The Netherlands; (N.P.); (J.G.); (A.D.K.)
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Chen LL, Abbaspour A, Mkoma GF, Bulik CM, Rück C, Djurfeldt D. Gut Microbiota in Psychiatric Disorders: A Systematic Review. Psychosom Med 2021; 83:679-692. [PMID: 34117156 PMCID: PMC8428865 DOI: 10.1097/psy.0000000000000959] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/25/2020] [Revised: 02/04/2021] [Indexed: 12/24/2022]
Abstract
OBJECTIVE This systematic review sought to comprehensively summarize gut microbiota research in psychiatric disorders following PRISMA guidelines. METHODS Literature searches were performed on databases using keywords involving gut microbiota and psychiatric disorders. Articles in English with human participants up until February 13, 2020, were reviewed. Risk of bias was assessed using a modified Newcastle-Ottawa Scale for microbiota studies. RESULTS Sixty-nine of 4231 identified studies met the inclusion criteria for extraction. In most studies, gut microbiota composition differed between individuals with psychiatric disorders and healthy controls; however, limited consistency was observed in the taxonomic profiles. At the genus level, the most replicated findings were higher abundance of Bifidobacterium and lower abundance of Roseburia and Faecalibacterium among patients with psychiatric disorders. CONCLUSIONS Gut bacteria that produce short-chain fatty acids, such as Roseburia and Faecalibacterium, could be less abundant in patients with psychiatric disorders, whereas commensal genera, for example, Bifidobacterium, might be more abundant compared with healthy controls. However, most included studies were hampered by methodological shortcomings including small sample size, unclear diagnostics, failure to address confounding factors, and inadequate bioinformatic processing, which might contribute to inconsistent results. Based on our findings, we provide recommendations to improve quality and comparability of future microbiota studies in psychiatry.
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61
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The role of microbiota-gut-brain axis in neuropsychiatric and neurological disorders. Pharmacol Res 2021; 172:105840. [PMID: 34450312 DOI: 10.1016/j.phrs.2021.105840] [Citation(s) in RCA: 233] [Impact Index Per Article: 77.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/15/2021] [Revised: 08/14/2021] [Accepted: 08/17/2021] [Indexed: 12/12/2022]
Abstract
Emerging evidence indicates that the gut microbiota play a crucial role in the bidirectional communication between the gut and the brain suggesting that the gut microbes may shape neural development, modulate neurotransmission and affect behavior, and thereby contribute to the pathogenesis and/or progression of many neurodevelopmental, neuropsychiatric, and neurological conditions. This review summarizes recent data on the role of microbiota-gut-brain axis in the pathophysiology of neuropsychiatric and neurological disorders including depression, anxiety, schizophrenia, autism spectrum disorders, Parkinson's disease, migraine, and epilepsy. Also, the involvement of microbiota in gut disorders co-existing with neuropsychiatric conditions is highlighted. We discuss data from both in vivo preclinical experiments and clinical reports including: (1) studies in germ-free animals, (2) studies exploring the gut microbiota composition in animal models of diseases or in humans, (3) studies evaluating the effects of probiotic, prebiotic or antibiotic treatment as well as (4) the effects of fecal microbiota transplantation.
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62
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Goswami A, Wendt FR, Pathak GA, Tylee DS, De Angelis F, De Lillo A, Polimanti R. Role of microbes in the pathogenesis of neuropsychiatric disorders. Front Neuroendocrinol 2021; 62:100917. [PMID: 33957173 PMCID: PMC8364482 DOI: 10.1016/j.yfrne.2021.100917] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/10/2021] [Revised: 03/25/2021] [Accepted: 04/29/2021] [Indexed: 02/08/2023]
Abstract
Microbes inhabit different anatomical sites of the human body including oral cavity, gut, and skin. A growing literature highlights how microbiome variation is associated with human health and disease. There is strong evidence of bidirectional communication between gut and brain mediated by neurotransmitters and microbial metabolites. Here, we review the potential involvement of microbes residing in the gut and in other body sites in the pathogenesis of eight neuropsychiatric disorders, discussing findings from animal and human studies. The data reported provide a comprehensive overview of the current state of the microbiome research in neuropsychiatry, including hypotheses about the mechanisms underlying the associations reported and the translational potential of probiotics and prebiotics.
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Affiliation(s)
- Aranyak Goswami
- Department of Psychiatry, Yale School of Medicine and VA CT Healthcare Center, West Haven, CT 06516, USA
| | - Frank R Wendt
- Department of Psychiatry, Yale School of Medicine and VA CT Healthcare Center, West Haven, CT 06516, USA
| | - Gita A Pathak
- Department of Psychiatry, Yale School of Medicine and VA CT Healthcare Center, West Haven, CT 06516, USA
| | - Daniel S Tylee
- Department of Psychiatry, Yale School of Medicine and VA CT Healthcare Center, West Haven, CT 06516, USA
| | - Flavio De Angelis
- Department of Psychiatry, Yale School of Medicine and VA CT Healthcare Center, West Haven, CT 06516, USA
| | - Antonella De Lillo
- Department of Psychiatry, Yale School of Medicine and VA CT Healthcare Center, West Haven, CT 06516, USA
| | - Renato Polimanti
- Department of Psychiatry, Yale School of Medicine and VA CT Healthcare Center, West Haven, CT 06516, USA.
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Chen Z, Zhijie C, Yuting Z, Chan L, Shilin X, Qichun Z, Jinying O, Jing L, Chaohua L, Zhixian M. The Ameliorative Effects of Isorhynchophylline on Morphine Dependence Are Mediated Through the Microbiota-Gut-Brain Axis. Front Pharmacol 2021; 12:526923. [PMID: 34168553 PMCID: PMC8218633 DOI: 10.3389/fphar.2021.526923] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Accepted: 02/17/2021] [Indexed: 01/04/2023] Open
Abstract
Morphine abuse is a global public health problem. Increasing evidence has shown that gut microbiota dysbiosis plays an important role in several central nervous system diseases. However, whether there is an association between gut microbiota and morphine dependence remains unclear. In this study, the effects of isorhynchophylline on morphine dependence were evaluated based on the microbiota-gut-brain axis (MGBA). The results showed that isorhynchophylline could reverse the changes in alpha and beta diversity, composition, and richness of the intestinal flora occurring in morphine-dependent zebrafish, as well as the morphine-induced changes in the expression of MGBA-related genes in BV2 cells and the brain and intestine of zebrafish. Based on the results, we then used antibiotics to evaluate whether disrupting the gut microbiota would affect morphine addiction in zebrafish. The results showed that the antibiotic-induced intestinal floral imbalance changed the behavior of morphine-dependent zebrafish, the characteristics of the zebrafish intestinal flora, and the expression of MGBA-related genes in the zebrafish brain and intestine. Importantly, we also show that, following antibiotic administration, the ameliorative effects of isorhynchophylline on morphine addiction were lost. Together, our results indicate that the gut microbiota interacts with the brain, and dysbiosis of the intestinal flora may affect the efficacy of isorhynchophylline in the body. Our findings provide a novel framework for understanding the mechanisms of morphine addiction through the MGBA and may provide new therapeutic strategies for the use of Chinese medicines in the prevention of drug addiction.
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Affiliation(s)
- Zhu Chen
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China.,The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Chen Zhijie
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China
| | - Zhou Yuting
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China
| | - Li Chan
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China
| | - Xiao Shilin
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China
| | - Zhou Qichun
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China
| | - Ou Jinying
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China
| | - Li Jing
- Central Laboratory, Southern Medical University, Guangzhou, China
| | - Luo Chaohua
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China
| | - Mo Zhixian
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China
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Altimiras F, Garcia JA, Palacios-García I, Hurley MJ, Deacon R, González B, Cogram P. Altered Gut Microbiota in a Fragile X Syndrome Mouse Model. Front Neurosci 2021; 15:653120. [PMID: 34121987 PMCID: PMC8190892 DOI: 10.3389/fnins.2021.653120] [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: 01/13/2021] [Accepted: 04/06/2021] [Indexed: 01/09/2023] Open
Abstract
The human gut microbiome is the ecosystem of microorganisms that live in the human digestive system. Several studies have related gut microbiome variants to metabolic, immune and nervous system disorders. Fragile X syndrome (FXS) is a neurodevelopmental disorder considered the most common cause of inherited intellectual disability and the leading monogenetic cause of autism. The role of the gut microbiome in FXS remains largely unexplored. Here, we report the results of a gut microbiome analysis using a FXS mouse model and 16S ribosomal RNA gene sequencing. We identified alterations in the fmr1 KO2 gut microbiome associated with different bacterial species, including those in the genera Akkermansia, Sutterella, Allobaculum, Bifidobacterium, Odoribacter, Turicibacter, Flexispira, Bacteroides, and Oscillospira. Several gut bacterial metabolic pathways were significantly altered in fmr1 KO2 mice, including menaquinone degradation, catechol degradation, vitamin B6 biosynthesis, fatty acid biosynthesis, and nucleotide metabolism. Several of these metabolic pathways, including catechol degradation, nucleotide metabolism and fatty acid biosynthesis, were previously reported to be altered in children and adults with autism. The present study reports a potential association of the gut microbiome with FXS, thereby opening new possibilities for exploring reliable treatments and non-invasive biomarkers.
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Affiliation(s)
- Francisco Altimiras
- Faculty of Engineering, Pontificia Universidad Católica de Valparaíso, Valparaíso, Chile.,Faculty of Engineering and Business, Universidad de las Américas, Santiago, Chile
| | - José Antonio Garcia
- Faculty of Engineering, Pontificia Universidad Católica de Valparaíso, Valparaíso, Chile
| | - Ismael Palacios-García
- School of Psychology, Pontificia Universidad Católica de Chile, Santiago, Chile.,Centro de Estudios en Neurociencia Humana y Neuropsicología, Facultad de Psicología, Universidad Diego Portales, Santiago, Chile
| | - Michael J Hurley
- Biological Sciences, Faculty of Environmental and Life Sciences, University of Southampton, Southampton, United Kingdom
| | - Robert Deacon
- Department of Genetics, Institute of Ecology and Biodiversity (IEB), Faculty of Sciences, Universidad de Chile, Santiago, Chile.,FRAXA-DVI, FRAXA Research Foundation, Santiago, Chile
| | - Bernardo González
- Faculty of Engineering and Sciences, Universidad Adolfo Ibáñez, Santiago, Chile.,Center of Applied Ecology and Sustainability (CAPES), Santiago, Chile
| | - Patricia Cogram
- Department of Genetics, Institute of Ecology and Biodiversity (IEB), Faculty of Sciences, Universidad de Chile, Santiago, Chile.,FRAXA-DVI, FRAXA Research Foundation, Santiago, Chile
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65
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Kong XJ, Liu J, Liu K, Koh M, Sherman H, Liu S, Tian R, Sukijthamapan P, Wang J, Fong M, Xu L, Clairmont C, Jeong MS, Li A, Lopes M, Hagan V, Dutton T, Chan ST(P, Lee H, Kendall A, Kwong K, Song Y. Probiotic and Oxytocin Combination Therapy in Patients with Autism Spectrum Disorder: A Randomized, Double-Blinded, Placebo-Controlled Pilot Trial. Nutrients 2021; 13:1552. [PMID: 34062986 PMCID: PMC8147925 DOI: 10.3390/nu13051552] [Citation(s) in RCA: 39] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2021] [Revised: 05/01/2021] [Accepted: 05/02/2021] [Indexed: 12/14/2022] Open
Abstract
Autism spectrum disorder (ASD) is a rapidly growing neurodevelopmental disorder. Both probiotics and oxytocin were reported to have therapeutic potential; however, the combination therapy has not yet been studied. We conducted a randomized, double-blinded, placebo-controlled, 2-stage pilot trial in 35 individuals with ASD aged 3-20 years (median = 10.30 years). Subjects were randomly assigned to receive daily Lactobacillus plantarum PS128 probiotic (6 × 1010 CFUs) or a placebo for 28 weeks; starting on week 16, both groups received oxytocin. The primary outcomes measure socio-behavioral severity using the Social Responsiveness Scale (SRS) and Aberrant Behavior Checklist (ABC). The secondary outcomes include measures of the Clinical Global Impression (CGI) scale, fecal microbiome, blood serum inflammatory markers, and oxytocin. All outcomes were compared between the two groups at baseline, 16 weeks, and 28 weeks into treatment. We observed improvements in ABC and SRS scores and significant improvements in CGI-improvement between those receiving probiotics and oxytocin combination therapy compared to those receiving placebo (p < 0.05). A significant number of favorable gut microbiome network hubs were also identified after combination therapy (p < 0.05). The favorable social cognition response of the combination regimen is highly correlated with the abundance of the Eubacterium hallii group. Our findings suggest synergic effects between probiotics PS128 and oxytocin in ASD patients, although further investigation is warranted.
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Affiliation(s)
- Xue-Jun Kong
- Athinoula A. Martinos Center, Massachusetts General Hospital, Charlestown, MA 02129, USA; (J.L.); (K.L.); (M.K.); (H.S.); (S.L.); (R.T.); (J.W.); (M.F.); (C.C.); (M.-S.J.); (A.L.); (M.L.); (V.H.); (T.D.); (S.-T.C.); (A.K.); (K.K.)
- Department of Psychiatry, Beth Israel Deaconess Medical Center, Boston, MA 02215, USA
| | - Jun Liu
- Athinoula A. Martinos Center, Massachusetts General Hospital, Charlestown, MA 02129, USA; (J.L.); (K.L.); (M.K.); (H.S.); (S.L.); (R.T.); (J.W.); (M.F.); (C.C.); (M.-S.J.); (A.L.); (M.L.); (V.H.); (T.D.); (S.-T.C.); (A.K.); (K.K.)
- Harvard Medical School, Boston, MA 02115, USA; (P.S.); (L.X.); (H.L.)
| | - Kevin Liu
- Athinoula A. Martinos Center, Massachusetts General Hospital, Charlestown, MA 02129, USA; (J.L.); (K.L.); (M.K.); (H.S.); (S.L.); (R.T.); (J.W.); (M.F.); (C.C.); (M.-S.J.); (A.L.); (M.L.); (V.H.); (T.D.); (S.-T.C.); (A.K.); (K.K.)
| | - Madelyn Koh
- Athinoula A. Martinos Center, Massachusetts General Hospital, Charlestown, MA 02129, USA; (J.L.); (K.L.); (M.K.); (H.S.); (S.L.); (R.T.); (J.W.); (M.F.); (C.C.); (M.-S.J.); (A.L.); (M.L.); (V.H.); (T.D.); (S.-T.C.); (A.K.); (K.K.)
| | - Hannah Sherman
- Athinoula A. Martinos Center, Massachusetts General Hospital, Charlestown, MA 02129, USA; (J.L.); (K.L.); (M.K.); (H.S.); (S.L.); (R.T.); (J.W.); (M.F.); (C.C.); (M.-S.J.); (A.L.); (M.L.); (V.H.); (T.D.); (S.-T.C.); (A.K.); (K.K.)
| | - Siyu Liu
- Athinoula A. Martinos Center, Massachusetts General Hospital, Charlestown, MA 02129, USA; (J.L.); (K.L.); (M.K.); (H.S.); (S.L.); (R.T.); (J.W.); (M.F.); (C.C.); (M.-S.J.); (A.L.); (M.L.); (V.H.); (T.D.); (S.-T.C.); (A.K.); (K.K.)
| | - Ruiyi Tian
- Athinoula A. Martinos Center, Massachusetts General Hospital, Charlestown, MA 02129, USA; (J.L.); (K.L.); (M.K.); (H.S.); (S.L.); (R.T.); (J.W.); (M.F.); (C.C.); (M.-S.J.); (A.L.); (M.L.); (V.H.); (T.D.); (S.-T.C.); (A.K.); (K.K.)
| | | | - Jiuju Wang
- Athinoula A. Martinos Center, Massachusetts General Hospital, Charlestown, MA 02129, USA; (J.L.); (K.L.); (M.K.); (H.S.); (S.L.); (R.T.); (J.W.); (M.F.); (C.C.); (M.-S.J.); (A.L.); (M.L.); (V.H.); (T.D.); (S.-T.C.); (A.K.); (K.K.)
| | - Michelle Fong
- Athinoula A. Martinos Center, Massachusetts General Hospital, Charlestown, MA 02129, USA; (J.L.); (K.L.); (M.K.); (H.S.); (S.L.); (R.T.); (J.W.); (M.F.); (C.C.); (M.-S.J.); (A.L.); (M.L.); (V.H.); (T.D.); (S.-T.C.); (A.K.); (K.K.)
| | - Lei Xu
- Harvard Medical School, Boston, MA 02115, USA; (P.S.); (L.X.); (H.L.)
- Department of Radiation Oncology, Massachusetts General Hospital, Boston, MA 02114, USA
| | - Cullen Clairmont
- Athinoula A. Martinos Center, Massachusetts General Hospital, Charlestown, MA 02129, USA; (J.L.); (K.L.); (M.K.); (H.S.); (S.L.); (R.T.); (J.W.); (M.F.); (C.C.); (M.-S.J.); (A.L.); (M.L.); (V.H.); (T.D.); (S.-T.C.); (A.K.); (K.K.)
| | - Min-Seo Jeong
- Athinoula A. Martinos Center, Massachusetts General Hospital, Charlestown, MA 02129, USA; (J.L.); (K.L.); (M.K.); (H.S.); (S.L.); (R.T.); (J.W.); (M.F.); (C.C.); (M.-S.J.); (A.L.); (M.L.); (V.H.); (T.D.); (S.-T.C.); (A.K.); (K.K.)
| | - Alice Li
- Athinoula A. Martinos Center, Massachusetts General Hospital, Charlestown, MA 02129, USA; (J.L.); (K.L.); (M.K.); (H.S.); (S.L.); (R.T.); (J.W.); (M.F.); (C.C.); (M.-S.J.); (A.L.); (M.L.); (V.H.); (T.D.); (S.-T.C.); (A.K.); (K.K.)
| | - Maria Lopes
- Athinoula A. Martinos Center, Massachusetts General Hospital, Charlestown, MA 02129, USA; (J.L.); (K.L.); (M.K.); (H.S.); (S.L.); (R.T.); (J.W.); (M.F.); (C.C.); (M.-S.J.); (A.L.); (M.L.); (V.H.); (T.D.); (S.-T.C.); (A.K.); (K.K.)
| | - Veronica Hagan
- Athinoula A. Martinos Center, Massachusetts General Hospital, Charlestown, MA 02129, USA; (J.L.); (K.L.); (M.K.); (H.S.); (S.L.); (R.T.); (J.W.); (M.F.); (C.C.); (M.-S.J.); (A.L.); (M.L.); (V.H.); (T.D.); (S.-T.C.); (A.K.); (K.K.)
| | - Tess Dutton
- Athinoula A. Martinos Center, Massachusetts General Hospital, Charlestown, MA 02129, USA; (J.L.); (K.L.); (M.K.); (H.S.); (S.L.); (R.T.); (J.W.); (M.F.); (C.C.); (M.-S.J.); (A.L.); (M.L.); (V.H.); (T.D.); (S.-T.C.); (A.K.); (K.K.)
| | - Suk-Tak (Phoebe) Chan
- Athinoula A. Martinos Center, Massachusetts General Hospital, Charlestown, MA 02129, USA; (J.L.); (K.L.); (M.K.); (H.S.); (S.L.); (R.T.); (J.W.); (M.F.); (C.C.); (M.-S.J.); (A.L.); (M.L.); (V.H.); (T.D.); (S.-T.C.); (A.K.); (K.K.)
| | - Hang Lee
- Harvard Medical School, Boston, MA 02115, USA; (P.S.); (L.X.); (H.L.)
- MGH Biostatistics Center, Massachusetts General Hospital, Boston, MA 02114, USA
| | - Amy Kendall
- Athinoula A. Martinos Center, Massachusetts General Hospital, Charlestown, MA 02129, USA; (J.L.); (K.L.); (M.K.); (H.S.); (S.L.); (R.T.); (J.W.); (M.F.); (C.C.); (M.-S.J.); (A.L.); (M.L.); (V.H.); (T.D.); (S.-T.C.); (A.K.); (K.K.)
| | - Kenneth Kwong
- Athinoula A. Martinos Center, Massachusetts General Hospital, Charlestown, MA 02129, USA; (J.L.); (K.L.); (M.K.); (H.S.); (S.L.); (R.T.); (J.W.); (M.F.); (C.C.); (M.-S.J.); (A.L.); (M.L.); (V.H.); (T.D.); (S.-T.C.); (A.K.); (K.K.)
| | - Yiqing Song
- Department of Epidemiology, Indiana University, Richard M. Fairbanks School of Public Health, Indianapolis, IN 46202, USA;
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Andreo-Martínez P, Rubio-Aparicio M, Sánchez-Meca J, Veas A, Martínez-González AE. A Meta-analysis of Gut Microbiota in Children with Autism. J Autism Dev Disord 2021; 52:1374-1387. [PMID: 33948825 DOI: 10.1007/s10803-021-05002-y] [Citation(s) in RCA: 41] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/01/2021] [Indexed: 02/06/2023]
Abstract
Previous studies have reported dysbiosis in the gut microbiota (GM) of children with autism spectrum disorders (ASD), which may be a determining factor on child development through the microbiota-gut-brain axis. However, it is not clear if there is a specific group of dysbiotic bacteria in ASD. The aim of this study was to carry out a meta-analysis on the studies that analyze GM in children with ASD. 18 studies fulfilled our selection criteria. Our results showed a lower relative abundance of Streptococcus (SMD+ = - 0.999; 95% CI - 1.549, - 0.449) and Bifidobacterium genera (SMD+ = - 0.513; 95% CI - 0.953, - 0.073) in children with ASD. Overall, the Bifidobacterium genera is involved. However, differences found between studies are attributed to factors such as reporting bias.
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Affiliation(s)
- Pedro Andreo-Martínez
- Department of Agricultural Chemistry, Faculty of Chemistry, University of Murcia, Campus of Espinardo, Murcia, Spain.,Department of Chemical Engineering, Faculty of Chemistry, University of Murcia, Campus of Espinardo, Murcia, Spain
| | - María Rubio-Aparicio
- Department of Health Psychology, Faculty of Health Sciences, University of Alicante, Alicante, Spain
| | - Julio Sánchez-Meca
- Department Basic Psychology and Methodology, Faculty of Psychology, University of Murcia, Murcia, Spain
| | - Alejandro Veas
- Department of Developmental Psychology and Didactics, Faculty of Education, University of Alicante, Alicante, Spain
| | - Agustín Ernesto Martínez-González
- Department of Developmental Psychology and Didactics, Faculty of Education, University of Alicante, Alicante, Spain. .,Department of Developmental Psychology and Didactics, University of Alicante (Spain), Carretera San Vicente del Raspeig s/n. Edificio Facultad de Educación, Apdo, Correos, 99, 03080, Alicante, Spain.
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Kong Q, Tian P, Zhao J, Zhang H, Wang G, Chen W. The autistic-like behaviors development during weaning and sexual maturation in VPA-induced autistic-like rats is accompanied by gut microbiota dysbiosis. PeerJ 2021; 9:e11103. [PMID: 33986978 PMCID: PMC8101471 DOI: 10.7717/peerj.11103] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2020] [Accepted: 02/22/2021] [Indexed: 01/15/2023] Open
Abstract
Researches on gut microbiota in autism have mostly focused on children, but the dynamic changes of gut microbiota from weaning to adulthood were still not clear because of the difficulty of diagnosing autism. In this study, autistic-like rats indued by valproate (VPA) were tracked from weaning (end of breastfeeding; four weeks old) to sexual maturation (food; eight weeks old). Autistic-like rats were found to show obvious developmental disorders. During weaning, autistic-like rats only exhibited obvious repetitive stereotyped behaviors, but the autistic-like behaviors were fully apparent upon sexual maturation. Significant differences were observed between the gut microbiota of autistic-like and healthy rats across both age groups. The correlation analysis results revealed that the correlation between behaviors and some microbiota, especially Helicobacter, did not vary with age or diet. The total amount of short-chain fatty acids (SCFAs) decreased, butyric acid metabolism decreased, and propionic acid metabolism increased in the feces of autistic-like rats. The correlation between autistic-like behaviors and the butyric acid and propionic acid levels did not vary with diet or age. Inositol phosphate metabolism, amino acid metabolism, and lipopolysaccharide biosynthesis were significantly associated with autistic-like behaviors. Our results showed that although the microbiota and SCFAs related to autism were affected by age and diet, some remained consistent irrespective of age and diet, and they could be considered two of the factors related to autistic-like behaviors development.
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Affiliation(s)
- Qingmin Kong
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, P. R. China
- School of Food Science and Technology, Jiangnan University, Wuxi, China
| | - Peijun Tian
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, P. R. China
- School of Food Science and Technology, Jiangnan University, Wuxi, China
| | - Jianxin Zhao
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, P. R. China
- School of Food Science and Technology, Jiangnan University, Wuxi, China
- International Joint Research Laboratory for Probiotics & Gut Health, Jiangnan University, Wuxi, P. R. China
- (Yangzhou) Institute of Food Biotechnology, Jiangnan University, Wuxi, P. R. China
| | - Hao Zhang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, P. R. China
- School of Food Science and Technology, Jiangnan University, Wuxi, China
- (Yangzhou) Institute of Food Biotechnology, Jiangnan University, Wuxi, P. R. China
- National Engineering Center of Functional Food, Jiangnan university, Wuxi, China
- Wuxi Translational Medicine Research Center and Jiangsu Translational Medicine Research Institute Wuxi Branch, Wuxi, China
| | - Gang Wang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, P. R. China
- School of Food Science and Technology, Jiangnan University, Wuxi, China
- International Joint Research Laboratory for Probiotics & Gut Health, Jiangnan University, Wuxi, P. R. China
- (Yangzhou) Institute of Food Biotechnology, Jiangnan University, Wuxi, P. R. China
| | - Wei Chen
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, P. R. China
- School of Food Science and Technology, Jiangnan University, Wuxi, China
- National Engineering Center of Functional Food, Jiangnan university, Wuxi, China
- Beijing Innovation Centre of Food Nutrition and Human Health, Beijing Technology and Business University, Beijing, China
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Fecal Microbiome Transplantation from Children with Autism Spectrum Disorder Modulates Tryptophan and Serotonergic Synapse Metabolism and Induces Altered Behaviors in Germ-Free Mice. mSystems 2021; 6:6/2/e01343-20. [PMID: 33824200 PMCID: PMC8547010 DOI: 10.1128/msystems.01343-20] [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] [Indexed: 02/08/2023] Open
Abstract
To determine the relationship of the gut microbiota and its metabolites with autism spectrum disorder (ASD)-like behaviors and preliminarily explore the potential molecular mechanisms, the fecal microbiota from donors with ASD and typically developing (TD) donors were transferred into germ-free (GF) mice to obtain ASD-FMT mice and TD-FMT mice, respectively. Behavioral tests were conducted on these mice after 3 weeks. 16S rRNA gene sequencing of the cecal contents and untargeted metabolomic analysis of the cecum, serum, and prefrontal cortex were performed. Untargeted metabolomics was also used to analyze fecal samples of TD and ASD children. Western blotting detected the protein expression levels of tryptophan hydroxylase 1 (TPH1), serotonin transporter (SERT), and serotonin 1A receptor (5-HT1AR) in the colon and TPH2, SERT, and 5-HT1AR in the prefrontal cortex of mice. ASD-FMT mice showed ASD-like behavior and a microbial community structure different from that of TD-FMT mice. Tryptophan and serotonin metabolisms were altered in both ASD and TD children and ASD-FMT and TD-FMT mice. Some microbiota may be related to tryptophan and serotonin metabolism. Compared with TD-FMT mice, ASD-FMT mice showed low SERT and 5-HT1AR and high TPH1 expression levels in the colon. In the prefrontal cortex, the expression levels of TPH2 and SERT were increased in the ASD-FMT group relative to the TD-FMT group. Therefore, the fecal microbiome of ASD children can lead to ASD-like behaviors, different microbial community structures, and altered tryptophan and serotonin metabolism in GF mice. These changes may be related to changes in some key proteins involved in the synthesis and transport of serotonin. IMPORTANCE The relationship between the gut microbiota and ASD is not yet fully understood. Numerous studies have focused on the differences in intestinal microbial and metabolism profiles between TD and ASD children. However, it is still not clear if these microbes and metabolites cause the development of ASD symptoms. Here, we collected fecal samples from TD and ASD children, transplanted them into GF mice, and found that the fecal microbiome of ASD children can lead to ASD-like behaviors, different microbial community structures, and altered tryptophan and serotonin metabolism in GF mice. We also demonstrated that tryptophan and serotonin metabolism was also altered in ASD and TD children. Together, these findings confirm that the microbiome from children with ASD may lead to ASD-like behavior of GF mice through metabolites, especially tryptophan and serotonin metabolism.
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Xiao S, Zhang G, Jiang C, Liu X, Wang X, Li Y, Cheng M, Lv H, Xian F, Guo X, Tan Y. Deciphering Gut Microbiota Dysbiosis and Corresponding Genetic and Metabolic Dysregulation in Psoriasis Patients Using Metagenomics Sequencing. Front Cell Infect Microbiol 2021; 11:605825. [PMID: 33869074 PMCID: PMC8047475 DOI: 10.3389/fcimb.2021.605825] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2020] [Accepted: 03/09/2021] [Indexed: 12/21/2022] Open
Abstract
Background Increasing evidence has shown that alterations in the intestinal microbiota play an important role in the pathogenesis of psoriasis. The existing relevant studies focus on 16S rRNA gene sequencing, but in-depth research on gene functions and comprehensive identification of microbiota is lacking. Objectives To comprehensively identify characteristic gut microbial compositions, genetic functions and relative metabolites of patients with psoriasis and to reveal the potential pathogenesis of psoriasis. Methods DNA was extracted from the faecal microbiota of 30 psoriatic patients and 15 healthy subjects, and metagenomics sequencing and bioinformatic analyses were performed. The Kyoto Encyclopedia of Genes and Genomes (KEGG) database, cluster of orthologous groups (COG) annotations, and metabolic analyses were used to indicate relative target genes and pathways to reveal the pathogenesis of psoriasis. Results Compared with healthy individuals, the gut microbiota of psoriasis patients displayed an alteration in microbial taxa distribution, but no significant difference in microbial diversity. A distinct gut microbial composition in patients with psoriasis was observed, with an increased abundance of the phyla Firmicutes, Actinobacteria and Verrucomicrobia and genera Faecalibacterium, Bacteroides, Bifidobacterium, Megamonas and Roseburia and a decreased abundance of the phyla Bacteroidetes, Euryarchaeota and Proteobacteria and genera Prevotella, Alistipes, and Eubacterium. A total of 134 COGs were predicted with functional analysis, and 15 KEGG pathways, including lipopolysaccharide (LPS) biosynthesis, WNT signaling, apoptosis, bacterial secretion system, and phosphotransferase system, were significantly enriched in psoriasis patients. Five metabolites, hydrogen sulfide (H2S), isovalerate, isobutyrate, hyaluronan and hemicellulose, were significantly dysregulated in the psoriatic cohort. The dysbiosis of gut microbiota, enriched pathways and dysregulated metabolites are relevant to immune and inflammatory response, apoptosis, the vascular endothelial growth factor (VEGF) signaling pathway, gut-brain axis and brain-skin axis that play important roles in the pathogenesis of psoriasis. Conclusions A clear dysbiosis was displayed in the gut microbiota profile, genetic functions and relative metabolites of psoriasis patients. This study is beneficial for further understanding the inflammatory pathogenesis of psoriasis and could be used to develop microbiome-based predictions and therapeutic approaches.
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Affiliation(s)
- Shiju Xiao
- Beijing Hospital of Traditional Chinese Medicine, Capital Medical University, Beijing, China.,Graduate School, Capital Medical University, Beijing, China
| | - Guangzhong Zhang
- Beijing Hospital of Traditional Chinese Medicine, Capital Medical University, Beijing, China
| | - Chunyan Jiang
- Beijing Hospital of Traditional Chinese Medicine, Capital Medical University, Beijing, China
| | - Xin Liu
- Puyang Hospital of Traditional Chinese Medicine, Puyang, China
| | - Xiaoxu Wang
- Beijing Hospital of Traditional Chinese Medicine, Capital Medical University, Beijing, China.,Graduate School, Capital Medical University, Beijing, China
| | - Yafan Li
- Beijing University of Chinese Medicine, Beijing, China
| | - Meijiao Cheng
- Beijing QuantiHealth Technology Co., Ltd, Beijing, China
| | - Hongpeng Lv
- Beijing University of Chinese Medicine, Beijing, China
| | - Fuyang Xian
- Beijing University of Chinese Medicine, Beijing, China
| | - Xinwei Guo
- Beijing Hospital of Traditional Chinese Medicine, Capital Medical University, Beijing, China.,Graduate School, Capital Medical University, Beijing, China.,Beijing Institute of Traditional Chinese Medicine, Beijing, China
| | - Yong Tan
- Institute of Basic Research in Clinical Medicine, China Academy of Chinese Medical Sciences, Beijing, China
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70
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CODY enables quantitatively spatiotemporal predictions on in vivo gut microbial variability induced by diet intervention. Proc Natl Acad Sci U S A 2021; 118:2019336118. [PMID: 33753486 PMCID: PMC8020746 DOI: 10.1073/pnas.2019336118] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Quantitatively understanding and predicting spatiotemporal dynamics of microbiota is imperative for development of tailored microbiome-directed therapeutics treatments. However, the complexity of microbial variations, due to interactions with the host, other microbes, and environmental factors, makes it challenging to identify how microbiota colonize in the human gut. Here, we describe a novel multiscale framework for COmputing the DYnamics of the gut microbiota (CODY), which enables the quantification of spatiotemporal-specific variations of gut microbiome abundance profiles, without a prior knowledge of microbiome interactions. Importantly, the predictive power of CODY is demonstrated using cross-sectional data from two longitudinal metagenomics studies—the microbiota development during early infancy and during short-term diet intervention of obese adults. Microbial variations in the human gut are harbored in temporal and spatial heterogeneity, and quantitative prediction of spatiotemporal dynamic changes in the gut microbiota is imperative for development of tailored microbiome-directed therapeutics treatments, e.g. precision nutrition. Given the high-degree complexity of microbial variations, subject to the dynamic interactions among host, microbial, and environmental factors, identifying how microbiota colonize in the gut represents an important challenge. Here we present COmputing the DYnamics of microbiota (CODY), a multiscale framework that integrates species-level modeling of microbial dynamics and ecosystem-level interactions into a mathematical model that characterizes spatial-specific in vivo microbial residence in the colon as impacted by host physiology. The framework quantifies spatiotemporal resolution of microbial variations on species-level abundance profiles across site-specific colon regions and in feces, independent of a priori knowledge. We demonstrated the effectiveness of CODY using cross-sectional data from two longitudinal metagenomics studies—the microbiota development during early infancy and during short-term diet intervention of obese adults. For each cohort, CODY correctly predicts the microbial variations in response to diet intervention, as validated by available metagenomics and metabolomics data. Model simulations provide insight into the biogeographical heterogeneity among lumen, mucus, and feces, which provides insight into how host physical forces and spatial structure are shaping microbial structure and functionality.
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71
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Spichak S, Bastiaanssen TFS, Berding K, Vlckova K, Clarke G, Dinan TG, Cryan JF. Mining microbes for mental health: Determining the role of microbial metabolic pathways in human brain health and disease. Neurosci Biobehav Rev 2021; 125:698-761. [PMID: 33675857 DOI: 10.1016/j.neubiorev.2021.02.044] [Citation(s) in RCA: 59] [Impact Index Per Article: 19.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2020] [Revised: 02/22/2021] [Accepted: 02/25/2021] [Indexed: 12/12/2022]
Abstract
There is increasing knowledge regarding the role of the microbiome in modulating the brain and behaviour. Indeed, the actions of microbial metabolites are key for appropriate gut-brain communication in humans. Among these metabolites, short-chain fatty acids, tryptophan, and bile acid metabolites/pathways show strong preclinical evidence for involvement in various aspects of brain function and behaviour. With the identification of neuroactive gut-brain modules, new predictive tools can be applied to existing datasets. We identified 278 studies relating to the human microbiota-gut-brain axis which included sequencing data. This spanned across psychiatric and neurological disorders with a small number also focused on normal behavioural development. With a consistent bioinformatics pipeline, thirty-five of these datasets were reanalysed from publicly available raw sequencing files and the remainder summarised and collated. Among the reanalysed studies, we uncovered evidence of disease-related alterations in microbial metabolic pathways in Alzheimer's Disease, schizophrenia, anxiety and depression. Amongst studies that could not be reanalysed, many sequencing and technical limitations hindered the discovery of specific biomarkers of microbes or metabolites conserved across studies. Future studies are warranted to confirm our findings. We also propose guidelines for future human microbiome analysis to increase reproducibility and consistency within the field.
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Affiliation(s)
- Simon Spichak
- Department of Anatomy and Neuroscience, University College Cork, Cork, Ireland; APC Microbiome Institute, University College Cork, Cork, Ireland
| | - Thomaz F S Bastiaanssen
- Department of Anatomy and Neuroscience, University College Cork, Cork, Ireland; APC Microbiome Institute, University College Cork, Cork, Ireland
| | - Kirsten Berding
- Department of Anatomy and Neuroscience, University College Cork, Cork, Ireland; APC Microbiome Institute, University College Cork, Cork, Ireland
| | - Klara Vlckova
- Department of Anatomy and Neuroscience, University College Cork, Cork, Ireland; APC Microbiome Institute, University College Cork, Cork, Ireland
| | - Gerard Clarke
- APC Microbiome Institute, University College Cork, Cork, Ireland; Department of Psychiatry and Neurobehavioural Science, University College Cork, Cork, Ireland
| | - Timothy G Dinan
- APC Microbiome Institute, University College Cork, Cork, Ireland; Department of Psychiatry and Neurobehavioural Science, University College Cork, Cork, Ireland
| | - John F Cryan
- Department of Anatomy and Neuroscience, University College Cork, Cork, Ireland; APC Microbiome Institute, University College Cork, Cork, Ireland.
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72
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Zhang Q, Zou R, Guo M, Duan M, Li Q, Zheng H. Comparison of gut microbiota between adults with autism spectrum disorder and obese adults. PeerJ 2021; 9:e10946. [PMID: 33717692 PMCID: PMC7931713 DOI: 10.7717/peerj.10946] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Accepted: 01/25/2021] [Indexed: 02/02/2023] Open
Abstract
Background Autism spectrum disorder (ASD) and obesity are serious global public health problems. Studies have shown that ASD children are at a higher risk of obesity than the general population. To investigate the gut microbe characteristics of adults ASD and obese adults, we compared the gut microbiota of adults with ASD to obese adults. Methods The fecal samples were collected from 21 adult patients with ASD and 21 obese adults, and V3–V4 regions of 16S rRNA genes were sequenced by high-throughput DNA sequencing. The gut microbiota of adults with ASD and obese adults was compared. Results We observed the proportion of Firmicutes/Bacteroidetes in ASD was significantly increased, with families Lachnospiraceae and Ruminococcaceae significantly enriched in adult ASD. Eighteen genera, including Lachnospiracea incertae sedis, Ruminococcus, Blautia, and Holdemanella were significantly increased in adult ASD, whereas Megamonas and Fusobacterium were significantly increased in obesity. At the species level, we found six species enriched in ASD and three species enriched in obesity, including Phascolarctobacterium succinatuten producing propionate. Dialister succinatiphilus may be as a biomarker for predicting obesity, as well as Prevotella copri may be a common-owned pathogens of ASD and obesity. Conclusions Some conflicting results have been reported in microbiota studies of ASD, which may be related to age and obesity. Thus, the body mass index should be evaluated before analyzing the gut microbiota of patients with ASD, as obesity is prevalent in these individuals and gut microbiota is severally affected by obesity.
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Affiliation(s)
- Qiang Zhang
- Department of Obstetrics and Gynecology, Affiliated Hospital of Zunyi Medical University, Zunyi, China.,NHC Key Lab. of Reproduction Regulation (Shanghai Institute of Planned Parenthood Research), Fudan University, Shanghai, China
| | - Rong Zou
- NHC Key Lab. of Reproduction Regulation (Shanghai Institute of Planned Parenthood Research), Fudan University, Shanghai, China
| | - Min Guo
- NHC Key Lab. of Reproduction Regulation (Shanghai Institute of Planned Parenthood Research), Fudan University, Shanghai, China
| | - Mengmeng Duan
- NHC Key Lab. of Reproduction Regulation (Shanghai Institute of Planned Parenthood Research), Fudan University, Shanghai, China
| | - Quan Li
- Department of Obstetrics and Gynecology, Affiliated Hospital of Zunyi Medical University, Zunyi, China
| | - Huajun Zheng
- NHC Key Lab. of Reproduction Regulation (Shanghai Institute of Planned Parenthood Research), Fudan University, Shanghai, China
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73
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Sabit H, Tombuloglu H, Rehman S, Almandil NB, Cevik E, Abdel-Ghany S, Rashwan S, Abasiyanik MF, Yee Waye MM. Gut microbiota metabolites in autistic children: An epigenetic perspective. Heliyon 2021; 7:e06105. [PMID: 33553761 PMCID: PMC7848646 DOI: 10.1016/j.heliyon.2021.e06105] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2020] [Revised: 01/18/2021] [Accepted: 01/22/2021] [Indexed: 12/18/2022] Open
Abstract
Gut microbiota has become an issue of great importance recently due to its major role in autism spectrum disorder (ASD). Over the past three decades, there has been a sustained research activity focused to explain the actual mechanism by which gut microbiota triggers/develops autism. Several genetic and epigenetic factors are involved in this disorder, with epigenetics being the most active area of research. Although the constant investigation and advancements, epigenetic implications in ASD still need a deeper functional/causal analysis. In this review, we describe the major gut microbiota metabolites and how they induce epigenetic changes in ASD along with interactions through the gut-brain axis.
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Affiliation(s)
- Hussein Sabit
- Department of Genetics, Institute for Research and Medical Consultations (IRMC), Imam Abdulrahman Bin Faisal University, P. O. Box 1982, Dammam, 31441 Saudi Arabia
| | - Huseyin Tombuloglu
- Department of Genetics, Institute for Research and Medical Consultations (IRMC), Imam Abdulrahman Bin Faisal University, P. O. Box 1982, Dammam, 31441 Saudi Arabia
| | - Suriya Rehman
- Department of Epidemic Diseases, Institute for Research and Medical Consultations (IRMC), Imam Abdulrahman Bin Faisal University, P. O. Box 1982, Dammam, 31441 Saudi Arabia
| | - Noor B Almandil
- Department of Clinical Pharmacy Research, Institute for Research and Medical Consultation (IRMC), Imam Abdulrahman Bin Faisal University, P. O. Box 1982, Dammam, 31441 Saudi Arabia
| | - Emre Cevik
- Department of Genetics, Institute for Research and Medical Consultations (IRMC), Imam Abdulrahman Bin Faisal University, P. O. Box 1982, Dammam, 31441 Saudi Arabia
| | - Shaimaa Abdel-Ghany
- Department of Environmental Biotechnology, College of Biotechnology, Misr University for Science and Technology, P. O. Box 77, Giza, Egypt
| | - Sanaa Rashwan
- Pediatrics Department, Madinat Zayed Hospital, SEHA, Abu Dhabi, United Arab Emirates
| | - Mustafa Fatih Abasiyanik
- Pritzker School of Molecular Engineering, University of Chicago, Chicago, IL, 60637, USA.,Institute for Genomics and Systems Biology, University of Chicago, Chicago, IL, 60637, USA
| | - Mary Miu Yee Waye
- The Nethersole School of Nursing, The Croucher Laboratory for Human Genomics, The Chinese University of Hong Kong, Shatin, N.T. Hong Kong
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74
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Chen Z, Shi K, Liu X, Dai Y, Liu Y, Zhang L, Du X, Zhu T, Yu J, Fang S, Li F. Gut Microbial Profile Is Associated With the Severity of Social Impairment and IQ Performance in Children With Autism Spectrum Disorder. Front Psychiatry 2021; 12:789864. [PMID: 34975585 PMCID: PMC8718873 DOI: 10.3389/fpsyt.2021.789864] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/15/2021] [Accepted: 11/16/2021] [Indexed: 12/22/2022] Open
Abstract
Background and Objective: Autism spectrum disorder (ASD) refers to a heterogeneous set of neurodevelopmental disorders with diverse symptom severity and comorbidities. Although alterations in gut microbiota have been reported in individuals with ASD, it remains unclear whether certain microbial pattern is linked to specific symptom or comorbidity in ASD. We aimed to investigate the associations between gut microbiota and the severity of social impairment and cognitive functioning in children with ASD. Methods: A total of 261 age-matched children, including 138 children diagnosed with ASD, 63 with developmental delay or intellectual disability (DD/ID), and 60 typically developing (TD) children, were enrolled from the Shanghai Xinhua Registry. The children with ASD were further classified into two subgroups: 76 children diagnosed with ASD and developmental disorder (ASD+DD) and 62 with ASD only (ASD-only). The gut microbiome of all children was profiled and evaluated by 16S ribosomal RNA sequencing. Results: The gut microbial analyses demonstrated an altered microbial community structure in children with ASD. The alpha diversity indices of the ASD+DD and ASD-only subgroups were significantly lower than the DD/ID or TD groups. At the genus level, we observed a decrease in the relative abundance of Prevotella. Simultaneously, Bacteroides and Faecalibacterium were significantly increased in ASD compared with DD/ID and TD participants. There was a clear correlation between alpha diversity and the Childhood Autism Rating Scale (CARS) total score for all participants, and this correlation was independent of IQ performance. Similar correlations with the CARS total score were observed for genera Bacteroides, Faecalibacterium, and Oscillospira. However, there was no single genus significantly associated with IQ in all participants. Conclusions: Specific alterations in bacterial taxonomic composition and associations with the severity of social impairment and IQ performance were observed in children with ASD or ASD subgroups, when compared with DD/ID or TD groups. These results illustrate that gut microbiota may serve as a promising biomarker for ASD symptoms. Nevertheless, further investigations are warranted.
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Affiliation(s)
- Zilin Chen
- Department of Developmental and Behavioral Pediatric & Child Primary Care, Brain and Behavioral Research Unit of Shanghai Institute for Pediatric Research and MOE-Shanghai Key Laboratory for Children's Environmental Health, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Kai Shi
- Institute of Science and Technology for Brain-Inspired Intelligence, Fudan University, Shanghai, China
| | - Xin Liu
- Department of Developmental and Behavioral Pediatric & Child Primary Care, Brain and Behavioral Research Unit of Shanghai Institute for Pediatric Research and MOE-Shanghai Key Laboratory for Children's Environmental Health, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yuan Dai
- Department of Developmental and Behavioral Pediatric & Child Primary Care, Brain and Behavioral Research Unit of Shanghai Institute for Pediatric Research and MOE-Shanghai Key Laboratory for Children's Environmental Health, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yuqi Liu
- Department of Developmental and Behavioral Pediatric & Child Primary Care, Brain and Behavioral Research Unit of Shanghai Institute for Pediatric Research and MOE-Shanghai Key Laboratory for Children's Environmental Health, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Lingli Zhang
- Department of Developmental and Behavioral Pediatric & Child Primary Care, Brain and Behavioral Research Unit of Shanghai Institute for Pediatric Research and MOE-Shanghai Key Laboratory for Children's Environmental Health, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xiujuan Du
- Department of Developmental and Behavioral Pediatric & Child Primary Care, Brain and Behavioral Research Unit of Shanghai Institute for Pediatric Research and MOE-Shanghai Key Laboratory for Children's Environmental Health, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Tailin Zhu
- Department of Developmental and Behavioral Pediatric & Child Primary Care, Brain and Behavioral Research Unit of Shanghai Institute for Pediatric Research and MOE-Shanghai Key Laboratory for Children's Environmental Health, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Juehua Yu
- Centre for Experimental Studies and Research, First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Shuanfeng Fang
- Department of Child Health Care, Children's Hospital Affiliated to Zhengzhou University, Zhengzhou, China
| | - Fei Li
- Department of Developmental and Behavioral Pediatric & Child Primary Care, Brain and Behavioral Research Unit of Shanghai Institute for Pediatric Research and MOE-Shanghai Key Laboratory for Children's Environmental Health, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
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Choi TY, Choi YP, Koo JW. Mental Disorders Linked to Crosstalk between The Gut Microbiome and The Brain. Exp Neurobiol 2020; 29:403-416. [PMID: 33139585 PMCID: PMC7788310 DOI: 10.5607/en20047] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2020] [Revised: 10/21/2020] [Accepted: 10/22/2020] [Indexed: 12/11/2022] Open
Abstract
Often called the second brain, the gut communicates extensively with the brain and vice versa. The conversation between these two organs affects a variety of physiological mechanisms that are associated with our mental health. Over the past decade, a growing body of evidence has suggested that the gut microbiome builds a unique ecosystem inside the gastrointestinal tract to maintain the homeostasis and that compositional changes in the gut microbiome are highly correlated with several mental disorders. There are ongoing efforts to treat or prevent mental disorders by regulating the gut microbiome using probiotics. These attempts are based on the seminal findings that probiotics can control the gut microbiome and affect mental conditions. However, some issues have yet to be conclusively addressed, especially the causality between the gut microbiome and mental disorders. In this review, we focus on the mechanisms by which the gut microbiome affects mental health and diseases. Furthermore, we discuss the potential use of probiotics as therapeutic agents for psychiatric disorders.
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Affiliation(s)
- Tae-Yong Choi
- Emotion, Cognition and Behavior Research Group, Korea Brain Research Institute (KBRI), Daegu 41062, Korea
| | - Young Pyo Choi
- Laboratory Animal Center, Korea Brain Research Institute (KBRI), Daegu 41062, Korea
| | - Ja Wook Koo
- Emotion, Cognition and Behavior Research Group, Korea Brain Research Institute (KBRI), Daegu 41062, Korea
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76
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Kang GU, Jung DR, Lee YH, Jeon SY, Han HS, Chong GO, Shin JH. Dynamics of Fecal Microbiota with and without Invasive Cervical Cancer and Its Application in Early Diagnosis. Cancers (Basel) 2020; 12:cancers12123800. [PMID: 33339445 PMCID: PMC7766064 DOI: 10.3390/cancers12123800] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Revised: 12/10/2020] [Accepted: 12/10/2020] [Indexed: 02/06/2023] Open
Abstract
Simple Summary The fecal microbiome has been suggested to be linked to invasive cervical cancer (ICC). Considering that ICC is common in women, it is important to identify bacterial signatures from fecal microbiota that contribute in classifying cervical cancer. Although previous studies have suggested possible biomarkers based on fecal microbiota, limited information exists in terms of the diagnostic ability using gut microbiota-derived signatures for detecting early ICC. The purpose of this study was to investigate the potential association between early ICC and fecal microbiota and to examine whether fecal microbiota-derived markers can be utilized as a non-invasive tool to diagnose early ICC using machine learning (ML) techniques. Further studies to incorporate quantitative and qualitative characterization of identified individual bacterial genus and validate our model in larger cohorts are imperative in terms of causality for the association between cervical cancer and microbes. Abstract The fecal microbiota is being increasingly implicated in the diagnosis of various diseases. However, evidence on changes in the fecal microbiota in invasive cervical cancer (ICC) remains scarce. Here, we aimed to investigate the fecal microbiota of our cohorts, develop a diagnostic model for predicting early ICC, and identify potential fecal microbiota-derived biomarkers using amplicon sequencing data. We obtained fecal samples from 29 healthy women (HC) and 17 women with clinically confirmed early ICC (CAN). Although Shannon’s diversity index was not reached at statistical significance, the Chao1 and Observed operational taxonomic units (OTUs) in fecal microbiota was significantly different between CAN and HC group. Furthermore, there were significant differences in the taxonomic profiles between HC and CAN; Prevotella was significantly more abundant in the CAN group and Clostridium in the HC group. Linear discriminant analysis effect size (LEfSe) analysis was applied to validate the taxonomic differences at the genus level. Furthermore, we identified a set of seven bacterial genera that were used to construct a machine learning (ML)-based classifier model to distinguish CAN from patients with HC. The model had high diagnostic utility (area under the curve [AUC] = 0.913) for predicting early ICC. Our study provides an initial step toward exploring the fecal microbiota and helps clinicians diagnose.
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Affiliation(s)
- Gi-Ung Kang
- Department of Applied Biosciences, Kyungpook National University, Daegu 41566, Korea
| | - Da-Ryung Jung
- Department of Biomedical Convergence Science & Technology, Kyungpook National University, Daegu 41566, Korea
| | - Yoon Hee Lee
- Department of Obstetrics and Gynecology, School of Medicine, Kyungpook National University, Daegu 41404, Korea
- Department of Obstetrics and Gynecology, Kyungpook National University Chilgok Hospital, Daegu 41404, Korea
- Clinical Omics Research Center, School of Medicine, Kyungpook National University, Daegu 41940, Korea
| | - Se Young Jeon
- Department of Obstetrics and Gynecology, Kyungpook National University Chilgok Hospital, Daegu 41404, Korea
- Clinical Omics Research Center, School of Medicine, Kyungpook National University, Daegu 41940, Korea
| | - Hyung Soo Han
- Clinical Omics Research Center, School of Medicine, Kyungpook National University, Daegu 41940, Korea
- Department of Physiology, School of Medicine, Kyungpook National University, Daegu 41405, Korea
| | - Gun Oh Chong
- Department of Obstetrics and Gynecology, School of Medicine, Kyungpook National University, Daegu 41404, Korea
- Department of Obstetrics and Gynecology, Kyungpook National University Chilgok Hospital, Daegu 41404, Korea
- Clinical Omics Research Center, School of Medicine, Kyungpook National University, Daegu 41940, Korea
| | - Jae-Ho Shin
- Department of Applied Biosciences, Kyungpook National University, Daegu 41566, Korea
- Department of Biomedical Convergence Science & Technology, Kyungpook National University, Daegu 41566, Korea
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77
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Impact of outdoor nature-related activities on gut microbiota, fecal serotonin, and perceived stress in preschool children: the Play&Grow randomized controlled trial. Sci Rep 2020; 10:21993. [PMID: 33319792 PMCID: PMC7738543 DOI: 10.1038/s41598-020-78642-2] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Accepted: 11/26/2020] [Indexed: 12/16/2022] Open
Abstract
Due to rapid urbanization, children today have fewer opportunities to interact with nature and this may result in a greater risk for developing stress and depression. Outdoor nature-related activities can enhance general well-being. However, the underlying mechanisms are not fully delineated. Here we recruited 54 preschool children to participate in a 10-week structured nature-related “Play&Grow” program. Following the intervention, children were assessed for connectedness to nature and perceived stress levels using validated questionnaires. Moreover, fecal serotonin level and gut microbiota profiles were measured by ELISA and 16S rDNA amplicon sequencing, respectively. Children were significantly more connected to nature after the intervention. Their gut microbiota altered, especially by modulating the abundance of Roseburia and the fecal-serotonin level. Moreover, we also observed a reduction in the overall perceived stress, particularly in the frequency of anger among these children. This study is the first to demonstrate the impact of nature-related activities on gut microbiota, fecal serotonin and psychosocial behaviour of preschool children. However, further mechanistic studies are needed to confirm the functional role of gut microbiota in the association between connectedness to nature and improved psychosocial behavior.
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78
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The gut microbiota-brain axis in behaviour and brain disorders. Nat Rev Microbiol 2020; 19:241-255. [PMID: 33093662 DOI: 10.1038/s41579-020-00460-0] [Citation(s) in RCA: 825] [Impact Index Per Article: 206.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/17/2020] [Indexed: 02/06/2023]
Abstract
In a striking display of trans-kingdom symbiosis, gut bacteria cooperate with their animal hosts to regulate the development and function of the immune, metabolic and nervous systems through dynamic bidirectional communication along the 'gut-brain axis'. These processes may affect human health, as certain animal behaviours appear to correlate with the composition of gut bacteria, and disruptions in microbial communities have been implicated in several neurological disorders. Most insights about host-microbiota interactions come from animal models, which represent crucial tools for studying the various pathways linking the gut and the brain. However, there are complexities and manifest limitations inherent in translating complex human disease to reductionist animal models. In this Review, we discuss emerging and exciting evidence of intricate and crucial connections between the gut microbiota and the brain involving multiple biological systems, and possible contributions by the gut microbiota to neurological disorders. Continued advances from this frontier of biomedicine may lead to tangible impacts on human health.
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79
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Gut microbiota changes in patients with autism spectrum disorders. J Psychiatr Res 2020; 129:149-159. [PMID: 32912596 DOI: 10.1016/j.jpsychires.2020.06.032] [Citation(s) in RCA: 74] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/28/2020] [Revised: 06/26/2020] [Accepted: 06/30/2020] [Indexed: 12/26/2022]
Abstract
Autism spectrum disorder (ASD) has a high incidence of intestinal comorbidity, indicating a strong association with gut microbiota. The purpose of this study was to characterize gut microbiota profiles in children with ASD. Seventy-seven children with ASD [33 with mild ASD and 44 with severe ASD according to the Childhood Autism Rating Scale score] and 50 age-matched healthy children were enrolled. Compared with children in the healthy control (HC) group, those in the ASD group showed higher biomass, richness, and biodiversity of gut microbiota, and an altered microbial community structure. At the genus level, there was a significant increase in the relative abundance of unidentified Lachnospiraceae, Clostridiales, Erysipelotrichaceae, Dorea, Collinsella, and Lachnoclostridium, whereas Bacteroides, Faecalibacterium, Parasutterella, and Paraprevotella were significantly lower in the ASD group than in the control group. The presence of unidentified Erysipelotrichaceae, Faecalibacterium, and Lachnospiraceae was positively correlated with ASD severity. Notably, three microbial markers (Faecalitalea, Caproiciproducens and Collinsella) were identified in a random forest model with an area under the curve (AUC) of 0.94 for differentiation between HCs and ASD patients. Furthermore, the validation model was consistent with the discovery set (AUC = 0.98, 95% CI: 97.9%-100%). The training and testing sets were more effective when the number of bacteria was increased. In addition, the functional properties (such as galactose metabolism, glycosyltransferase activity, and glutathione metabolism) displayed significant differences between the ASD and HC groups. The current study provides evidence for the relationship between gut microbiota and ASD, with the findings suggesting that gut microbiota could contribute to symptomology. Thus, modulation of gut microbiota may be a new therapeutic strategy for ASD.
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80
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Zhang M, Chu Y, Meng Q, Ding R, Shi X, Wang Z, He Y, Zhang J, Liu J, Zhang J, Yu J, Kang Y, Wang J. A quasi-paired cohort strategy reveals the impaired detoxifying function of microbes in the gut of autistic children. SCIENCE ADVANCES 2020; 6:eaba3760. [PMID: 33087359 PMCID: PMC7577716 DOI: 10.1126/sciadv.aba3760] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/28/2019] [Accepted: 09/02/2020] [Indexed: 06/11/2023]
Abstract
Growing evidence suggests that autism spectrum disorder (ASD) is strongly associated with dysbiosis in the gut microbiome, with the exact mechanisms still unclear. We have proposed a novel analytic strategy-quasi-paired cohort-and applied it to a metagenomic study of the ASD microbiome. By comparing paired samples of ASD and neurotypical subjects, we have identified significant deficiencies in ASD children in detoxifying enzymes and pathways, which show a strong correlation with biomarkers of mitochondrial dysfunction. Diagnostic models based on these detoxifying enzymes accurately distinguished ASD individuals from controls, and the dysfunction score inferred from the model increased with the clinical rating scores of ASD. In summary, our results suggest a previously undiscovered potential role of impaired intestinal microbial detoxification in toxin accumulation and mitochondrial dysfunction, a core component of ASD pathogenesis. These findings pave the way for designing future therapeutic strategies to restore microbial detoxification capabilities for patients with ASD.
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Affiliation(s)
- Mengxiang Zhang
- Department of Biomedical Informatics, School of Basic Medical Sciences, Peking University, Beijing 100191, China
| | - Yanan Chu
- CAS Key Laboratory of Genome Sciences and Information, Beijing Institute of Genomics, Chinese Academy of Sciences, and China National Center for Bioinformation, Beijing 100101, China
| | - Qingren Meng
- School of Medicine, Southern University of Science and Technology, Shenzhen 518055, China
| | - Rui Ding
- Department of Biomedical Informatics, School of Basic Medical Sciences, Peking University, Beijing 100191, China
- Autism Research Center of Peking University Health Science Center, Beijing 100191, China
| | - Xing Shi
- Department of Respiratory and Critical Care Medicine, Peking University People's Hospital, Beijing 100044, China
| | - Zuqun Wang
- Department of Biomedical Informatics, School of Basic Medical Sciences, Peking University, Beijing 100191, China
- Autism Research Center of Peking University Health Science Center, Beijing 100191, China
| | - Yi He
- Department of Biomedical Informatics, School of Basic Medical Sciences, Peking University, Beijing 100191, China
- Autism Research Center of Peking University Health Science Center, Beijing 100191, China
| | - Juan Zhang
- Department of Pediatrics, Peking University Third Hospital, Beijing 100191, China
| | - Jing Liu
- Key Laboratory of Mental Health, Ministry of Health, Peking University Institute of Mental Health, Peking University Sixth Hospital, Beijing 100191, China
| | - Jie Zhang
- Children Health Care Center, Xi'an Children's Hospital, Xi'an 710003, China
| | - Jun Yu
- CAS Key Laboratory of Genome Sciences and Information, Beijing Institute of Genomics, Chinese Academy of Sciences, and China National Center for Bioinformation, Beijing 100101, China
| | - Yu Kang
- CAS Key Laboratory of Genome Sciences and Information, Beijing Institute of Genomics, Chinese Academy of Sciences, and China National Center for Bioinformation, Beijing 100101, China.
| | - Juan Wang
- Department of Biomedical Informatics, School of Basic Medical Sciences, Peking University, Beijing 100191, China.
- Autism Research Center of Peking University Health Science Center, Beijing 100191, China
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Bundgaard-Nielsen C, Knudsen J, Leutscher PDC, Lauritsen MB, Nyegaard M, Hagstrøm S, Sørensen S. Gut microbiota profiles of autism spectrum disorder and attention deficit/hyperactivity disorder: A systematic literature review. Gut Microbes 2020; 11:1172-1187. [PMID: 32329656 PMCID: PMC7524304 DOI: 10.1080/19490976.2020.1748258] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Abstract
Accumulating evidence has implicated an involvement of the gut-brain axis in autism spectrum disorder (ASD) and attention-deficit hyperactivity disorder (ADHD), however with highly diverse results. This systematic review aims to describe and evaluate studies investigating the gut microbiota composition in individuals with ASD or ADHD and to evaluate if variations in gut microbiota are associated with these disorders. Twenty-four articles were identified in a systematic literature search of PubMed and Embase up to July 22, 2019. They consisted of 20 studies investigating ASD and four studies investigating ADHD. For ASD, several studies agreed on an overall difference in β-diversity, although no consistent bacterial variation between all studies was reported. For ADHD, the results were more diverse, with no clear differences observed. Several common characteristics in gut microbiota function were identified for ASD compared to controls. In contrast, highly heterogeneous results were reported for ADHD, and thus the association between gut microbiota composition and ADHD remains unclear. For both disorders, methodological differences hampered the comparison of studies.
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Affiliation(s)
- Caspar Bundgaard-Nielsen
- Centre for Clinical Research, North Denmark Regional Hospital, Aalborg, Denmark,Department of Clinical Medicine, Aalborg University, Aalborg, Denmark,CONTACT Caspar Bundgaard-Nielsen Centre for Clinical Research North Denmark Regional Hospital and Department of Clinical Medicine, Aalborg University, Aalborg, Denmark Bispensgade 37, 9800 Hjoerring, Denmark
| | - Julie Knudsen
- Centre for Clinical Research, North Denmark Regional Hospital, Aalborg, Denmark,Department of Clinical Medicine, Aalborg University, Aalborg, Denmark
| | - Peter D. C. Leutscher
- Centre for Clinical Research, North Denmark Regional Hospital, Aalborg, Denmark,Department of Clinical Medicine, Aalborg University, Aalborg, Denmark
| | - Marlene B. Lauritsen
- Research Unit for Child and Adolescent Psychiatry, Aalborg University Hospital, Aalborg, Denmark
| | - Mette Nyegaard
- Department of Biomedicine, Aarhus University, Aarhus, Denmark
| | - Søren Hagstrøm
- Centre for Clinical Research, North Denmark Regional Hospital, Aalborg, Denmark,Department of Clinical Medicine, Aalborg University, Aalborg, Denmark,Department of Pediatrics, Aalborg University Hospital, Aalborg, Denmark
| | - Suzette Sørensen
- Centre for Clinical Research, North Denmark Regional Hospital, Aalborg, Denmark,Department of Clinical Medicine, Aalborg University, Aalborg, Denmark
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82
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Zou R, Xu F, Wang Y, Duan M, Guo M, Zhang Q, Zhao H, Zheng H. Changes in the Gut Microbiota of Children with Autism Spectrum Disorder. Autism Res 2020; 13:1614-1625. [PMID: 32830918 DOI: 10.1002/aur.2358] [Citation(s) in RCA: 85] [Impact Index Per Article: 21.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2019] [Revised: 05/28/2020] [Accepted: 05/28/2020] [Indexed: 12/13/2022]
Abstract
Alterations in the gut microbiota may influence gastrointestinal (GI) dysbiosis frequently reported in individuals with autism spectrum disorder (ASD). In this study, we sequenced the bacterial 16S rRNA gene to evaluate changes in fecal microbiota between 48 children with ASD and 48 healthy children in China. At the phylum level, the number of Firmicutes, Proteobacteria, and Verrucomicrobia decreased in children with ASD, while the Bacteroidetes/Firmicutes was significantly higher in autistic children due to enrichment of Bacteroidetes. At the genus level, the amount of Bacteroides, Prevotella, Lachnospiracea_incertae_sedis, and Megamonas increased, while Clostridium XlVa, Eisenbergiella, Clostridium IV, Flavonifractor, Escherichia/Shigella, Haemophilus, Akkermansia, and Dialister decreased in children with ASD relative to the controls. Significant increase was observed in the number of species synthesizing branched-chain amino acids (BCAAs), like Bacteroides vulgatus and Prevotella copri, while the numbers of Bacteroides fragilis and Akkermansia muciniphila decreased in children with ASD compared to the controls. Most importantly, the highest levels of pathogenic bacteria were different for each child with ASD in this cohort. We found that only one functional module, cellular antigens, was enriched in children with ASD, and other pathways like lysine degradation and tryptophan metabolism were significantly decreased in children with ASD. These findings provide further evidence of altered gut microbiota in Chinese ASD children and may contribute to the treatment of patients with ASD. LAY SUMMARY: This study characterized the gut bacteria composition of 48 children with ASD and 48 neurotypical children in China. The metabolic disruptions caused by altered gut microbiota may contribute significantly to the neurological pathophysiology of ASD, including significant increases in the number of species synthesizing BCAAs, and decreases in the number of probiotic species. These findings suggest that a gut microbiome-associated therapeutic intervention may provide a novel strategy for treating GI symptoms frequently seen in individuals with ASD. Autism Res 2020, 13: 1614-1625. © 2020 International Society for Autism Research, Wiley Periodicals, Inc.
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Affiliation(s)
- Rong Zou
- NHC Key Laboratory of Reproduction Regulation (Shanghai Institute of Planned Parenthood Research), School of Basic Medical Sciences, Fudan University, Shanghai, China
| | - Fenfen Xu
- Department of Pediatrics, Jinan Central Hospital Affiliated to Shandong University, Jinan, China
| | - Yuezhu Wang
- Shanghai-MOST Key Laboratory of Health and Disease Genomics, Chinese National Human Genome Center at Shanghai, Shanghai, China
| | - Mengmeng Duan
- NHC Key Laboratory of Reproduction Regulation (Shanghai Institute of Planned Parenthood Research), School of Basic Medical Sciences, Fudan University, Shanghai, China
| | - Min Guo
- NHC Key Laboratory of Reproduction Regulation (Shanghai Institute of Planned Parenthood Research), School of Basic Medical Sciences, Fudan University, Shanghai, China
| | - Qiang Zhang
- Department of Obstetrics and Gynecology, The Affiliated Hospital of Zunyi Medical University, Zunyi, China
| | - Hongyang Zhao
- Department of Pediatrics, Jinan Central Hospital Affiliated to Shandong University, Jinan, China
| | - Huajun Zheng
- NHC Key Laboratory of Reproduction Regulation (Shanghai Institute of Planned Parenthood Research), School of Basic Medical Sciences, Fudan University, Shanghai, China
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83
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Yu R, Wu Z, Wang S, Zhang M, Zhou G, Li B. Isolation, identification and characterization of propionic acid bacteria associated with autistic spectrum disorder. Microb Pathog 2020; 147:104371. [PMID: 32634613 DOI: 10.1016/j.micpath.2020.104371] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2020] [Revised: 06/28/2020] [Accepted: 06/29/2020] [Indexed: 01/25/2023]
Abstract
Autism spectrum disorder (ASD) seriously affects children's health. Recently, propionic acid (PA) has been reported to play a significant role in the formation of ASD. In this study, we investigated the community structure of PA-related bacteria in healthy and ASD children by isolation and culture, while a group of representative PA-related bacteria were identified and characterized based on colony morphological observation, physiological and biochemical tests, as well as living/dead cells staining analysis and 16S rRNA gene sequencing. The results showed that the number of PA-related bacteria in healthy children was >100-fold higher than that in ASD children, while compared to healthy children, greater diversity was found in PA-associated bacteria from ASD children. The sensitivity of the representative strains to PA was affected by bacterial species, PA concentration and incubation time. The decrease of pH value was found in PA-resistant Lactobacillus plantarum strain 6-1 but not in PA-sensitive Enterococcus lactis strain 4-1, while biofilm formation of both strains were unaffected by PA. Furthermore, PA inhibited the propagation of the two selected bacteria rather than killed them, while the greater inhibitory effect was observed on strain 4-1. Overall, the result is of great significance for revealing the role of PA-related bacteria in development of ASD.
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Affiliation(s)
- Rongrong Yu
- College of Education, Zhejiang University of Technology, Hangzhou, 310032, China.
| | - Zhifeng Wu
- Institute of Biotechnology, Zhejiang University, Hangzhou, 310058, China.
| | - Shuhui Wang
- College of Education, Zhejiang University of Technology, Hangzhou, 310032, China.
| | - Muchen Zhang
- Institute of Biotechnology, Zhejiang University, Hangzhou, 310058, China.
| | - Guoling Zhou
- Hangzhou Seventh People's Hospital (HSPH), Hangzhou, 310013, China.
| | - Bin Li
- Institute of Biotechnology, Zhejiang University, Hangzhou, 310058, China.
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84
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Johnson D, Letchumanan V, Thurairajasingam S, Lee LH. A Revolutionizing Approach to Autism Spectrum Disorder Using the Microbiome. Nutrients 2020; 12:E1983. [PMID: 32635373 PMCID: PMC7400420 DOI: 10.3390/nu12071983] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Revised: 06/30/2020] [Accepted: 06/30/2020] [Indexed: 02/07/2023] Open
Abstract
The study of human microbiota and health has emerged as one of the ubiquitous research pursuits in recent decades which certainly warrants the attention of both researchers and clinicians. Many health conditions have been linked to the gut microbiota which is the largest reservoir of microbes in the human body. Autism spectrum disorder (ASD) is one of the neurodevelopmental disorders which has been extensively explored in relation to gut microbiome. The utilization of microbial knowledge promises a more integrative perspective in understanding this disorder, albeit being an emerging field in research. More interestingly, oral and vaginal microbiomes, indicating possible maternal influence, have equally drawn the attention of researchers to study their potential roles in the etiopathology of ASD. Therefore, this review attempts to integrate the knowledge of microbiome and its significance in relation to ASD including the hypothetical aetiology of ASD and its commonly associated comorbidities. The microbiota-based interventions including diet, prebiotics, probiotics, antibiotics, and faecal microbial transplant (FMT) have also been explored in relation to ASD. Of these, diet and probiotics are seemingly promising breakthrough interventions in the context of ASD for lesser known side effects, feasibility and easier administration, although more studies are needed to ascertain the actual clinical efficacy of these interventions. The existing knowledge and research gaps call for a more expanded and resolute research efforts in establishing the relationship between autism and microbiomes.
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Affiliation(s)
- Dinyadarshini Johnson
- Novel Bacteria and Drug Discovery Research Group (NBDD), Microbiome and Bioresource Research Strength (MBRS), Jeffrey Cheah School of Medicine and Health Sciences, Monash University Malaysia, Bandar Sunway 47500, Malaysia; (D.J.); (V.L.)
| | - Vengadesh Letchumanan
- Novel Bacteria and Drug Discovery Research Group (NBDD), Microbiome and Bioresource Research Strength (MBRS), Jeffrey Cheah School of Medicine and Health Sciences, Monash University Malaysia, Bandar Sunway 47500, Malaysia; (D.J.); (V.L.)
| | - Sivakumar Thurairajasingam
- Clinical School Johor Bahru, Jeffrey Cheah School of Medicine and Health Sciences, Monash University Malaysia, Johor Bahru 80100, Malaysia;
| | - Learn-Han Lee
- Novel Bacteria and Drug Discovery Research Group (NBDD), Microbiome and Bioresource Research Strength (MBRS), Jeffrey Cheah School of Medicine and Health Sciences, Monash University Malaysia, Bandar Sunway 47500, Malaysia; (D.J.); (V.L.)
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85
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Abdellatif B, McVeigh C, Bendriss G, Chaari A. The Promising Role of Probiotics in Managing the Altered Gut in Autism Spectrum Disorders. Int J Mol Sci 2020; 21:E4159. [PMID: 32532137 PMCID: PMC7312735 DOI: 10.3390/ijms21114159] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2020] [Revised: 05/12/2020] [Accepted: 05/14/2020] [Indexed: 02/06/2023] Open
Abstract
Gastrointestinal symptoms (GIS) have been reported repeatedly in people with autism spectrum disorder (ASD) and studies have reported interesting correlations between severity of behavioral and gastrointestinal symptoms. Growing evidence indicates that the gut microbiota in ASD is altered with various shifts described at different taxonomic levels, pointing to the importance of considering the gut-brain axis in treatment of these disorders. Probiotics are live beneficial bacteria that are ingested as food or customized pills. These beneficial bacteria, when added in sufficient amounts, can correct the dysbiosis. Because probiotics have shown success in treating irritable bowel syndrome (IBS), it is plausible to investigate whether they can induce alleviation of behavioral symptoms as well. Probiotics show, in some clinical studies, their potential benefits (1) in improving gastrointestinal dysfunction, (2) in correcting dysbiosis, (3) in consequently reducing the severity of ASD symptoms. This review compiles data from selected studies that investigate these benefits and the mechanisms that mediate these effects, which include the production of metabolites, hormones, and neurotransmitters and the regulation of pro-inflammatory and regulatory cytokines. Future research based on more randomized, controlled studies with a larger population size and standardized use of strains, concentration of probiotics, duration of treatments, and methods of DNA extraction is still needed in this area, which may lead to more robust results.
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Affiliation(s)
| | | | | | - Ali Chaari
- Premedical Department, Weill Cornell Medicine, Qatar Foundation, Education City, Doha, P.O. Box 24144, Qatar; (B.A.); (C.M.); (G.B.)
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86
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Eltokhi A, Janmaat IE, Genedi M, Haarman BCM, Sommer IEC. Dysregulation of synaptic pruning as a possible link between intestinal microbiota dysbiosis and neuropsychiatric disorders. J Neurosci Res 2020; 98:1335-1369. [PMID: 32239720 DOI: 10.1002/jnr.24616] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2019] [Revised: 02/16/2020] [Accepted: 02/26/2020] [Indexed: 02/06/2023]
Abstract
The prenatal and early postnatal stages represent a critical time window for human brain development. Interestingly, this window partly overlaps with the maturation of the intestinal flora (microbiota) that play a critical role in the bidirectional communication between the central and the enteric nervous systems (microbiota-gut-brain axis). The microbial composition has important influences on general health and the development of several organ systems, such as the gastrointestinal tract, the immune system, and also the brain. Clinical studies have shown that microbiota alterations are associated with a wide range of neuropsychiatric disorders including autism spectrum disorder, attention deficit hyperactivity disorder, schizophrenia, and bipolar disorder. In this review, we dissect the link between these neuropsychiatric disorders and the intestinal microbiota by focusing on their effect on synaptic pruning, a vital process in the maturation and establishing efficient functioning of the brain. We discuss in detail how synaptic pruning is dysregulated differently in the aforementioned neuropsychiatric disorders and how it can be influenced by dysbiosis and/or changes in the intestinal microbiota composition. We also review that the improvement in the intestinal microbiota composition by a change in diet, probiotics, prebiotics, or fecal microbiota transplantation may play a role in improving neuropsychiatric functioning, which can be at least partly explained via the optimization of synaptic pruning and neuronal connections. Altogether, the demonstration of the microbiota's influence on brain function via microglial-induced synaptic pruning addresses the possibility that the manipulation of microbiota-immune crosstalk represents a promising strategy for treating neuropsychiatric disorders.
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Affiliation(s)
- Ahmed Eltokhi
- Department of Neurology and Epileptology, Hertie Institute for Clinical Brain Research, Eberhard Karls University Tubingen, Tubingen, Germany
| | - Isabel E Janmaat
- Department of Biomedical Sciences, Cells & Systems, University Medical Centre Groningen, University of Groningen, Groningen, the Netherlands
| | - Mohamed Genedi
- Department of Biomedical Sciences, Cells & Systems, University Medical Centre Groningen, University of Groningen, Groningen, the Netherlands
| | - Bartholomeus C M Haarman
- Department of Psychiatry, University Medical Centre Groningen, University of Groningen, Groningen, the Netherlands
| | - Iris E C Sommer
- Department of Biomedical Sciences, Cells & Systems, University Medical Centre Groningen, University of Groningen, Groningen, the Netherlands
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87
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Andreo-Martínez P, García-Martínez N, Sánchez-Samper EP, Martínez-González AE. An approach to gut microbiota profile in children with autism spectrum disorder. ENVIRONMENTAL MICROBIOLOGY REPORTS 2020; 12:115-135. [PMID: 31713352 DOI: 10.1111/1758-2229.12810] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/12/2019] [Revised: 11/04/2019] [Accepted: 11/08/2019] [Indexed: 06/10/2023]
Abstract
In recent years, there has been an increase in studies on the implications of gut microbiota (GM) on the behaviour of children with autism spectrum disorders (ASD) due to a dysbiosis in GM that can trigger onset, development or progression of ASD through the microbiota-gut-brain axis. The aim of this study is to carry out a systematic review of articles from the last 6 years that analyse GM in children with ASD compared to GM in control groups. Children with ASD showed a higher abundance of Roseburia and Candida genera, and lower abundance of Dialister, Bilophila, Veillonella, Streptococcus, Coprococcus and Prevotella genera. Those differences can be attributed to factors such as different nationalities, nature of control groups, place where the sample was taken, gastrointestinal (GI) problems or bacterial detection methods. It is still too early to define a specific GM profile of children with ASD, and future studies should focus on homogenizing the characteristics of samples and control groups. Furthermore, new multicentre studies should also focus on the impact of GM on GI physiology, neurophysiology and behaviour of children with ASD, and on performing psychometric analyses of the correlation between the severity of ASD behavioural symptoms and GM profiles.
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Affiliation(s)
- Pedro Andreo-Martínez
- Department of Agricultural Chemistry, Faculty of Chemistry, University of Murcia, Campus of Espinardo, Murcia, 30100, Spain
- Department of Chemical Engineering, Faculty of Chemistry, University of Murcia, Campus of Espinardo, Murcia, 30100, Spain
| | - Nuria García-Martínez
- Department of Agricultural Chemistry, Faculty of Chemistry, University of Murcia, Campus of Espinardo, Murcia, 30100, Spain
| | - Elvira Pilar Sánchez-Samper
- Research Group of Human Nutrition and Food Sciences (NUTBRO), Veterinary Faculty, Regional Campus of International Excellence "Campus Mare Nostrum", University of Murcia, Murcia, Spain
- Murcian Institute of Biosanitary Research Virgen de la Arrixaca (IMIB), AREA 3, Digestive and Endocrine-Metabolic Diseases, Nutrition Research Line, Murcia, Spain
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88
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Iglesias-Vázquez L, Van Ginkel Riba G, Arija V, Canals J. Composition of Gut Microbiota in Children with Autism Spectrum Disorder: A Systematic Review and Meta-Analysis. Nutrients 2020; 12:nu12030792. [PMID: 32192218 PMCID: PMC7146354 DOI: 10.3390/nu12030792] [Citation(s) in RCA: 155] [Impact Index Per Article: 38.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Revised: 03/15/2020] [Accepted: 03/16/2020] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Autism spectrum disorder (ASD) is a public health problem and has a prevalence of 0.6%-1.7% in children. As well as psychiatric symptoms, dysbiosis and gastrointestinal comorbidities are also frequently reported. The gut-brain microbiota axis suggests that there is a form of communication between microbiota and the brain underlying some neurological disabilities. The aim of this study is to describe and compare the composition of gut microbiota in children with and without ASD. METHODS Electronic databases were searched as far as February 2020. Meta-analyses were performed using RevMan5.3 to estimate the overall relative abundance of gut bacteria belonging to 8 phyla and 17 genera in children with ASD and controls. RESULTS We included 18 studies assessing a total of 493 ASD children and 404 controls. The microbiota was mainly composed of the phyla Bacteroidetes, Firmicutes, and Actinobacteria, all of which were more abundant in the ASD children than in the controls. Children with ASD showed a significantly higher abundance of the genera Bacteroides, Parabacteroides, Clostridium, Faecalibacterium, and Phascolarctobacterium and a lower percentage of Coprococcus and Bifidobacterium. DISCUSSION This meta-analysis suggests that there is a dysbiosis in ASD children which may influence the development and severity of ASD symptomatology. Further studies are required in order to obtain stronger evidence of the effectiveness of pre- or probiotics in reducing autistic behaviors.
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Affiliation(s)
- Lucía Iglesias-Vázquez
- Department of Preventive Medicine and Public Health, Faculty of Medicine and Health Science, Universitat Rovira i Virgili, 43201 Reus, Spain; (L.I.-V.); (V.A.)
| | - Georgette Van Ginkel Riba
- Department of Psychology, Faculty of Education Sciences and Psychology, Universitat Rovira i Virgili, 43007 Tarragona, Spain;
| | - Victoria Arija
- Department of Preventive Medicine and Public Health, Faculty of Medicine and Health Science, Universitat Rovira i Virgili, 43201 Reus, Spain; (L.I.-V.); (V.A.)
| | - Josefa Canals
- Department of Psychology, Faculty of Education Sciences and Psychology, Universitat Rovira i Virgili, 43007 Tarragona, Spain;
- Correspondence: ; Tel.: +34-977-55-80-74
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89
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Zhang Y, Hu N, Cai Q, Zhang F, Zou J, Liu Y, Wei D, Zhu Q, Chen K, Zeng L, Huang X. Treatment with the traditional Chinese medicine BuYang HuanWu Tang induces alterations that normalize the microbiome in ASD patients. BIOSCIENCE OF MICROBIOTA FOOD AND HEALTH 2020; 39:109-116. [PMID: 32775128 PMCID: PMC7392916 DOI: 10.12938/bmfh.2019-032] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/07/2019] [Accepted: 02/14/2020] [Indexed: 01/08/2023]
Abstract
Autism spectrum disorders (ASDs) are prevalent neurobiological conditions with complicated causes worldwide. Increasing researcher awareness of ASD and accumulated evidence
suggest that the development of ASD may be strongly linked to the dysbiosis of the gut microbiota. In addition, most of the current studies have compared autistic children and
neurotypical children or have compared ASD patients before and after antibiotic treatment. Treatment of autism with traditional Chinese medicine (TCM) has increasingly been
promoted, but the relationship between its efficacy and intestinal flora has rarely been reported. Under the premise that treatment with the TCM BuYang HuanWu Tang
is effective, we conducted a comparative bioinformatics analysis to identify the overall changes in gut microbiota in relation to ASD by comparing the intestinal flora before and
after treatment with TCM and contrasting the intestinal flora with that of healthy controls. At the phylum level, Proteobacteria showed a significant increase in children with ASD,
which may be a signature of dysbiosis in the gut microbiota. At the genus level, Blautia, Coprococcus 1, the Lachnospiraceae
family, and the Ruminococcaceae family were found at the lowest levels of relative abundance in children with ASD, whereas the abundances of
Escherichia-Shigella, Klebsiella, and Flavonifractor were significantly increased compared with those in the healthy control group. In sum, this
study characterized the alterations of the intestinal microbiome in children with ASD and its normalization after TCM treatment (TCMT), which may provide novel insights into the
diagnosis and therapy of ASD.
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Affiliation(s)
- Yuping Zhang
- Department of Clinical Laboratory, The First Affiliated Hospital of Nanchang University, Nanchang University, Nanchang, 330006, P. R. China.,School of Medicine, Nanchang University, Nanchang 330006, P. R. China.,Jiangxi Provincial Key Laboratory of Preventive Medicine, Nanchang University, Nanchang 330006, P. R. China
| | - Niya Hu
- Department of Clinical Laboratory, The First Affiliated Hospital of Nanchang University, Nanchang University, Nanchang, 330006, P. R. China
| | - Qinming Cai
- Department of Clinical Laboratory, The First Affiliated Hospital of Nanchang University, Nanchang University, Nanchang, 330006, P. R. China
| | - Feng Zhang
- Institute of Translational Medicine, Nanchang University, Nanchang, 330031, P. R. China
| | - Jun Zou
- Jiangxi Provincial Children's Hospital, Nanchang, 330006, P. R. China
| | - Yanling Liu
- Department of Clinical Laboratory, The First Affiliated Hospital of Nanchang University, Nanchang University, Nanchang, 330006, P. R. China
| | - Dandan Wei
- Department of Clinical Laboratory, The First Affiliated Hospital of Nanchang University, Nanchang University, Nanchang, 330006, P. R. China
| | - Qing Zhu
- Department of Clinical Laboratory, The First Affiliated Hospital of Nanchang University, Nanchang University, Nanchang, 330006, P. R. China
| | - Kaisen Chen
- Department of Clinical Laboratory, The First Affiliated Hospital of Nanchang University, Nanchang University, Nanchang, 330006, P. R. China
| | - Lingbing Zeng
- Department of Clinical Laboratory, The First Affiliated Hospital of Nanchang University, Nanchang University, Nanchang, 330006, P. R. China
| | - Xiaotian Huang
- Department of Clinical Laboratory, The First Affiliated Hospital of Nanchang University, Nanchang University, Nanchang, 330006, P. R. China.,School of Medicine, Nanchang University, Nanchang 330006, P. R. China
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90
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Illiano P, Brambilla R, Parolini C. The mutual interplay of gut microbiota, diet and human disease. FEBS J 2020; 287:833-855. [DOI: 10.1111/febs.15217] [Citation(s) in RCA: 99] [Impact Index Per Article: 24.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2019] [Revised: 12/21/2019] [Accepted: 01/16/2020] [Indexed: 12/16/2022]
Affiliation(s)
- Placido Illiano
- The Miami Project to Cure Paralysis Department of Neurological Surgery University of Miami Miller School of Medicine FL USA
| | - Roberta Brambilla
- The Miami Project to Cure Paralysis Department of Neurological Surgery University of Miami Miller School of Medicine FL USA
- Department of Neurobiology Research Institute of Molecular Medicine University of Southern Denmark Odense Denmark
- Department of Clinical Research BRIDGE‐Brain Research‐Inter‐Disciplinary Guided Excellence University of Southern Denmark Odense C Denmark
| | - Cinzia Parolini
- Department of Pharmacological and Biomolecular Sciences Università degli Studi di Milano Italy
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91
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Specificity of gut microbiota in children with autism spectrum disorder in Slovakia and its correlation with astrocytes activity marker and specific behavioural patterns. Physiol Behav 2020; 214:112745. [DOI: 10.1016/j.physbeh.2019.112745] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2019] [Revised: 11/04/2019] [Accepted: 11/21/2019] [Indexed: 02/06/2023]
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92
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Al-Dewik N, Al-Jurf R, Styles M, Tahtamouni S, Alsharshani D, Alsharshani M, Ahmad AI, Khattab A, Al Rifai H, Walid Qoronfleh M. Overview and Introduction to Autism Spectrum Disorder (ASD). ADVANCES IN NEUROBIOLOGY 2020; 24:3-42. [PMID: 32006355 DOI: 10.1007/978-3-030-30402-7_1] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Autism spectrum disorder (ASD) is a complex neurodevelopmental disorder generally manifesting in the first few years of life and tending to persist into adolescence and adulthood. It is characterized by deficits in communication and social interaction and restricted, repetitive patterns of behavior, interests, and activities. It is a disorder with multifactorial etiology. In this chapter, we will focus on the most important and common epidemiological studies, pathogenesis, screening, and diagnostic tools along with an explication of genetic testing in ASD.
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Affiliation(s)
- Nader Al-Dewik
- Clinical and Metabolic Genetics Section, Pediatrics Department, Hamad General Hospital (HGH), Women's Wellness and Research Center (WWRC) and Interim Translational Research Institute (iTRI), Hamad Medical Corporation (HMC), Doha, Qatar. .,College of Health and Life Sciences, Hamad Bin Khalifa University (HBKU), Doha, Qatar. .,Faculty of Health and Social Care Sciences, Kingston University, St. George's University of London, London, UK.
| | - Rana Al-Jurf
- Department of Biomedical Science, College of Health Science, Qatar University, Doha, Qatar
| | - Meghan Styles
- Health Profession Awareness Program, Health Facilities Development, Hamad Medical Corporation (HMC), Doha, Qatar
| | - Sona Tahtamouni
- Child Development Center, Hamad Medical Corporation, Doha, Qatar
| | - Dalal Alsharshani
- College of Health and Life Sciences, Hamad Bin Khalifa University (HBKU), Doha, Qatar
| | - Mohammed Alsharshani
- Diagnostic Genetics Division (DGD), Department of Laboratory Medicine and Pathology (DLMP), Hamad Medical Corporation (HMC), Doha, Qatar
| | - Amal I Ahmad
- Qatar Rehabilitation Institute (QRI), Hamad Medical Corporation (HMC), Doha, Qatar
| | - Azhar Khattab
- Qatar Rehabilitation Institute (QRI), Hamad Medical Corporation (HMC), Doha, Qatar
| | - Hilal Al Rifai
- Department of Pediatrics and Neonatology, Newborn Screening Unit, Hamad Medical Corporation, Doha, Qatar
| | - M Walid Qoronfleh
- Research and Policy Department, World Innovation Summit for Health (WISH), Qatar Foundation, Doha, Qatar
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93
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Sun H, You Z, Jia L, Wang F. Autism spectrum disorder is associated with gut microbiota disorder in children. BMC Pediatr 2019; 19:516. [PMID: 31881951 PMCID: PMC6933684 DOI: 10.1186/s12887-019-1896-6] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/29/2019] [Accepted: 12/19/2019] [Indexed: 12/17/2022] Open
Abstract
Background The aim of this study was to evaluate the occurrence and clinical characteristics of autism spectrum disorder (ASD) associated to the stable state of the gut microbiota. Methods A total of 9 children with ASD and 6 healthy children used as control were selected and feces samples were collected from all of them. The 16S gene ribosomal RNA sequencing was used to analyze the difference in gut microbiota between healthy control children and ASD patients. Results The results of 16S sequencing based on operational taxonomic units (OTUs) analysis showed that the ASD group and the healthy control (HC) group had a large difference in the abundance of microbiota at the level of family, genus and species. The abundance of Bacteroidales and Selenomonadales was significantly lower in the ASD group than in the HC group (p = 0.0110 and p = 0.0076, respectively). The abundance of Ruminococcaceae in the ASD group was higher than that in the HC group (p = 0.0285), while the amount of Prevotellaceae was significantly lower in the ASD group than in the HC group (p = 0.0111). The Tax4Fun analysis based on Kyoto Encyclopaedia of Genes and Genomes (KEGG) data indicated differentially expressed functional pathway between the ASD group and healthy control group associated to the nervous system, environmental information processing and cellular processing. Conclusions The abundance of gut microbiota in the ASD group is different from that in the healthy control children. These differences affect the biological function of the host. These results suggest that a disorder in the gut microbiota may be associated, at least in part, with ASD in children.
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Affiliation(s)
- Hairong Sun
- Departemnt of Pediatrics, the Fifth People's Hospital of Wuxi, 1215 Guangrui Road, Wuxi, 214145, Jiangsu Province, China. .,Departemnt of Pediatrics, the Fifth Affiliated Hospital of Jiangnan University, Wuxi, Jiangsu Province, China.
| | - Zhong You
- Departemnt of Pediatrics, the Fifth People's Hospital of Wuxi, 1215 Guangrui Road, Wuxi, 214145, Jiangsu Province, China
| | - Libo Jia
- Departemnt of Pediatrics, Huishan District Rehabilitation Hospital, Wuxi City, Jiangsu Province, China
| | - Fang Wang
- School of Medicine, Jiangnan University, 1800 Lihu Avenue, Wuxi, Jiangsu Province, 214122, China.
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94
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Wang T, Zhang T, Sun L, Li W, Zhang C, Yu L, Guan Y. Gestational B-vitamin supplementation alleviates PM 2.5-induced autism-like behavior and hippocampal neurodevelopmental impairment in mice offspring. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2019; 185:109686. [PMID: 31546205 DOI: 10.1016/j.ecoenv.2019.109686] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2019] [Revised: 09/02/2019] [Accepted: 09/15/2019] [Indexed: 06/10/2023]
Abstract
Gestational exposure to PM2.5 is a worldwide environmental issue associated with long-lasting behavior abnormalities and neurodevelopmental impairments in the hippocampus of offspring. PM2.5 may induce hippocampus injury and lead to autism-like behavior such as social communication deficits and stereotyped repetitive behavior in children through neuroinflammation and neurodegeneration. Here, we investigated the preventive effect of B-vitamin on PM2.5-induced deleterious effects by focusing on anti-inflammation, antioxidant, synaptic remodeling and neurodevelopment. Pregnant mice were randomly divided into three groups including control group (mice subject to PBS only), model group (mice subject to both 30 μL PM2.5 of 3.456 μg/μL and 10 mL/(kg·d) PBS), and intervention group (mice subject to both 30 μL PM2.5 of 3.456 μg/μL and 10 mL/(kg·d) B-vitamin supplementation (folic acid, vitamin B6 and vitamin B12 with concentrations at 0.06, 1.14 and 0.02 mg/mL, respectively)). In the current study B-vitamin significantly alleviated neurobehavioral impairment reflected in reduced social communication disorders, stereotyped repetitive behavior, along with learning and spatial memory impairment in PM2.5-stimulated mice offspring. Next, B-vitamin corrected synaptic loss and reduced mitochondrial damage in hippocampus of mice offspring, demonstrated by normalized synapse quantity, synaptic cleft, postsynaptic density (PSD) thickness and length of synaptic active area. Furthermore, significantly down-regulated expression of pro-inflammatory cytokines including NF-κB, TNF-α and IL-1β, and lipid peroxidation were found. We observed elevated levels of oxidant-related genes (SOD, GSH and GSH-Px). Moreover, decreased cleaved caspase-3 and TUNEL-positive cells suggested inhibited PM2.5-induced apoptosis by B-vitamin. Furthermore, B-vitamin increased neurogenesis by increasing EdU-positive cells in the subgranular zone (SGZ) of offspring. Collectively, our results suggest that B-vitamin supplementation exerts preventive effect on autism-like behavior and neurodevelopmental impairment in hippocampus of mice offspring gestationally exposed to PM2.5, to which alleviated mitochondrial damage, increased anti-inflammatory and antioxidant capacity and synaptic efficiency, reduced neuronal apoptosis and improved hippocampal neurogenesis may contribute.
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Affiliation(s)
- Tingting Wang
- Department of Histology and Embryology, Neurologic Disorders and Regeneration Repair Lab of Shandong Higher Education, Weifang Medical University, Weifang, China
| | - Tianliang Zhang
- Experimental Center for Medical Research, Weifang Medical University, Weifang, China
| | - Lijuan Sun
- Department of Histology and Embryology, Neurologic Disorders and Regeneration Repair Lab of Shandong Higher Education, Weifang Medical University, Weifang, China
| | - Wanwei Li
- School of Public Health and Management, Weifang Medical University, Weifang, China
| | - Can Zhang
- Genetics and Aging Research Unit, McCance Center for Brain Health, MassGeneral Institute for Neurodegenerative Disease, Department of Neurology, Massachusetts General Hospital and Harvard Medical School, Charlestown, MA, USA
| | - Li Yu
- Department of Histology and Embryology, Neurologic Disorders and Regeneration Repair Lab of Shandong Higher Education, Weifang Medical University, Weifang, China.
| | - Yingjun Guan
- Department of Histology and Embryology, Neurologic Disorders and Regeneration Repair Lab of Shandong Higher Education, Weifang Medical University, Weifang, China.
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95
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Martínez Leo EE, Segura Campos MR. Effect of ultra-processed diet on gut microbiota and thus its role in neurodegenerative diseases. Nutrition 2019; 71:110609. [PMID: 31837645 DOI: 10.1016/j.nut.2019.110609] [Citation(s) in RCA: 72] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2019] [Revised: 08/06/2019] [Accepted: 09/23/2019] [Indexed: 02/06/2023]
Abstract
The current dietary pattern is characterized by high consumption of ultra-processed foods and lower consumption of fiber and vegetables, environmental factors that are associated directly with the current incidence of chronic metabolic diseases. Diet is an environmental factor that influences the diversity and functionality of the gut microbiota, where dietary changes have a direct action on their homeostasis. The environment created in the gut by ultra-processed foods, a hallmark of the Western diet that are recognized as trigger factors for low-grade systemic inflammatory and oxidative changes, favor the development of neurodegenerative diseases (NDs). From a systematic search, the present review analyzes the relationship and effect of the current feeding pattern, with the dysregulation of the microbiota and its influence on the development of cognitive decline. Because diagnosis of NDs is usually at late stages, this review highlights the importance of a search for stricter public health strategies regarding access to and development of ultra-processed foods.
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Affiliation(s)
- Edwin E Martínez Leo
- Facultad de Ingeniería Química, Universidad Autónoma de Yucatán, Periférico Norte Yucatán, México
| | - Maira R Segura Campos
- Facultad de Ingeniería Química, Universidad Autónoma de Yucatán, Periférico Norte Yucatán, México.
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96
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Lacorte E, Gervasi G, Bacigalupo I, Vanacore N, Raucci U, Parisi P. A Systematic Review of the Microbiome in Children With Neurodevelopmental Disorders. Front Neurol 2019; 10:727. [PMID: 31417479 PMCID: PMC6682593 DOI: 10.3389/fneur.2019.00727] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2019] [Accepted: 06/19/2019] [Indexed: 12/26/2022] Open
Abstract
Background and Purpose: A relationship between gut microbiome and central nervous system (CNS), have been suggested. The human microbiome may have an influence on brain's development, thus implying that dysbiosis may contribute in the etiology and progression of some neurological/neuropsychiatric disorders. The objective of this systematic review was to identify evidence on the characterization and potential distinctive traits of the microbiome of children with neurodevelopmental disorders, as compared to healthy children. Methods: The review was performed following the methodology described in the Cochrane handbook for systematic reviews, and was reported based on the PRISMA statement for reporting systematic reviews and meta-analyses. All literature published up to April 2019 was retrieved searching the databases PubMed, ISI Web of Science and the Cochrane Database of Systematic Reviews. Only observational studies, published in English and reporting data on the characterization of the microbiome in humans aged 0-18 years with a neurodevelopmental disorder were included. Neurodevelopmental disorders were categorized according to the definition included in the Diagnostic and Statistical Manual of Mental Disorders, version 5 (DSM-5). Results: Bibliographic searches yielded 9,237 records. One study was identified through other data sources. A total of 16 studies were selected based on their relevance and pertinence to the topic of the review, and were then applied the predefined inclusion and exclusion criteria. A total of 10 case-control studies met the inclusion criteria, and were thus included in the qualitative analysis and applied the NOS score. Two studies reported data on the gut microbiome of children with ADHD, while 8 reported data on either the gut (n = 6) or the oral microbiome (n = 2) of children with ASD. Conclusions: All the 10 studies included in this review showed a high heterogeneity in terms of sample size, gender, clinical issues, and type of controls. This high heterogeneity, along with the small sample size of the included studies, strongly limited the external validity of results. The quality assessment performed using the NOS score showed an overall low to moderate methodological quality of the included studies. To better clarify the potential role of microbiome in patients with neurodevelopmental disorders, further high-quality observational (specifically cohort) studies are needed.
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Affiliation(s)
- Eleonora Lacorte
- National Centre for Disease Prevention and Health Promotion, National Institute of Health, Rome, Italy
| | - Giuseppe Gervasi
- National Centre for Disease Prevention and Health Promotion, National Institute of Health, Rome, Italy.,Department of Biomedicine and Prevention, Hygiene and Preventive Medicine School, University of Rome Tor Vergata, Rome, Italy
| | - Ilaria Bacigalupo
- National Centre for Disease Prevention and Health Promotion, National Institute of Health, Rome, Italy
| | - Nicola Vanacore
- National Centre for Disease Prevention and Health Promotion, National Institute of Health, Rome, Italy
| | - Umberto Raucci
- Pediatric Emergency Department, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy
| | - Pasquale Parisi
- Department of Neurosciences, Mental Health, and Sensory Organs (NESMOS), Faculty of Medicine and Psychology, Sant'Andrea Hospital, Sapienza University, Rome, Italy
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97
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Martínez-González AE, Andreo-Martínez P. The Role of Gut Microbiota in Gastrointestinal Symptoms of Children with ASD. MEDICINA (KAUNAS, LITHUANIA) 2019; 55:E408. [PMID: 31357482 PMCID: PMC6722942 DOI: 10.3390/medicina55080408] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/27/2019] [Revised: 07/23/2019] [Accepted: 07/24/2019] [Indexed: 12/27/2022]
Abstract
Background and objectives: Autism spectrum disorder (ASD) is a neurodevelopmental disorder characterized by impaired communication, social interaction disorder, and repetitive behavior. Dysbiotic gut microbiota (GM) could be a contributing factor to the appearance of ASD, as gastrointestinal (GI) symptoms are comorbidities frequently reported in ASD. As there is a lack of reviews about the role played by GM in the GI symptoms of ASD, this work aimed to carry out a systematic review of current studies comparing the GM of children with ASD and GI symptoms with those of healthy controls in the last six years. Materials and Methods: The systematic review was performed following the PRISMA guidelines. The databases chosen were Web of Science, Scopus, PubMed, and PsycINFO, and the keywords were (gut* OR intestine* OR bowel* OR gastrointestinal*) AND (microbiota* OR microflora* OR bacteria* OR microbiome* OR flora* OR bacterial* OR bacteria* OR microorganism* OR feces* OR stool*) AND (autistic* OR autism* OR ASD*). Results: A total of 16 articles were included. Ten articles performed correlations analysis between GI symptoms and ASD. Among those 10 articles, 7 found differences between the GI symptoms present in children with ASD and healthy controls. The most common GI symptom was constipation. Among the seven articles that found differences, three performed correlations analysis between GI symptoms and gut microbe abundance. Candida, Prevotella, Streptococcus, and Veillonella showed higher and lower abundance, respectively, in children with ASD and GI symptoms in more than one article. Bacteroidetes, Firmicutes, Actinomyces, Dorea, Lactobacillus, Faecalibacterium prausnitzii, and Bacteroidetes/Firmicutes ratios showed abundance discrepancies. Conclusions: It is still too early to draw a conclusion about the gut microbes involved in GI symptoms of ASD. Future research should consider the relationship between ASD behavior, GM, and GI symptoms in a multidisciplinary way and homogenize sample characteristics.
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Affiliation(s)
| | - Pedro Andreo-Martínez
- Department of Agricultural Chemistry, Faculty of Chemistry, University of Murcia, Campus of Espinardo, 30100 Murcia, Spain.
- Department of Chemical Engineering, Faculty of Chemistry, University of Murcia, Campus of Espinardo, 30100 Murcia, Spain.
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98
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Hidalgo-Cantabrana C, Gómez J, Delgado S, Requena-López S, Queiro-Silva R, Margolles A, Coto E, Sánchez B, Coto-Segura P. Gut microbiota dysbiosis in a cohort of patients with psoriasis. Br J Dermatol 2019; 181:1287-1295. [PMID: 30920647 DOI: 10.1111/bjd.17931] [Citation(s) in RCA: 107] [Impact Index Per Article: 21.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/18/2019] [Indexed: 12/20/2022]
Abstract
BACKGROUND There is increasing evidence of the key role that the gut microbiota plays in inflammatory diseases. OBJECTIVES To identify differences in the faecal microbial composition of patients with psoriasis compared with healthy individuals in order to unravel the microbiota profiling in this autoimmune disease. METHODS 16S rRNA gene sequencing and bioinformatic analyses were performed with the total DNA extracted from the faecal microbiota of 19 patients with psoriasis and 20 healthy individuals from the same geographic location. RESULTS Gut microbiota composition of patients with psoriasis displayed a lower diversity and different relative abundance of certain bacterial taxa compared with healthy individuals. CONCLUSIONS The gut microbiota profile of patients with psoriasis displayed a clear dysbiosis that can be targeted for microbiome-based therapeutic approaches. What's already known about this topic? Psoriasis is a chronic inflammatory immune-mediated skin disease, the aetiology of which remains unclear. The human microbiota is a complex microbial community that inhabits our body and has been related with the maintenance of a healthy status. Several studies have focused on the skin microbiome and its connection with psoriasis although less attention has been focused on the potential role of the gut microbiota in psoriatic disease. What does this study add? This study unravels the gut microbiome dysbiosis present in a cohort of patients with psoriasis, compared with a healthy control group from the same geographical location. This study shows a lower bacterial diversity and different relative abundance of certain bacterial taxa in patients with psoriasis. We gain knowledge and insight into the microbiome alterations in psoriatic disease, opening new avenues for therapeutic approaches to reshape the human microbiome towards a healthy status.
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Affiliation(s)
- C Hidalgo-Cantabrana
- Department of Microbiology and Biochemistry of Dairy Products, Instituto de Productos Lácteos de Asturias-Consejo Superior de Investigaciones Científicas (IPLA-CSIC), Paseo Río Linares s/n 33300 Villaviciosa, Asturias, Spain
| | - J Gómez
- Molecular Genetics Laboratory, Hospital Universitario Central de Asturias, Oviedo, Spain
| | - S Delgado
- Department of Microbiology and Biochemistry of Dairy Products, Instituto de Productos Lácteos de Asturias-Consejo Superior de Investigaciones Científicas (IPLA-CSIC), Paseo Río Linares s/n 33300 Villaviciosa, Asturias, Spain
| | - S Requena-López
- Dermatology and, Hospital Universitario Central de Asturias, Oviedo, Spain
| | - R Queiro-Silva
- Department of Rheumatology, Hospital Universitario Central de Asturias, Oviedo, Spain
| | - A Margolles
- Department of Microbiology and Biochemistry of Dairy Products, Instituto de Productos Lácteos de Asturias-Consejo Superior de Investigaciones Científicas (IPLA-CSIC), Paseo Río Linares s/n 33300 Villaviciosa, Asturias, Spain
| | - E Coto
- Molecular Genetics Laboratory, Hospital Universitario Central de Asturias, Oviedo, Spain
| | - B Sánchez
- Department of Microbiology and Biochemistry of Dairy Products, Instituto de Productos Lácteos de Asturias-Consejo Superior de Investigaciones Científicas (IPLA-CSIC), Paseo Río Linares s/n 33300 Villaviciosa, Asturias, Spain
| | - P Coto-Segura
- Department of Dermatology, Hospital Vital Álvarez-Buylla, Mieres, Spain
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Risk Factors for Unhealthy Weight Gain and Obesity among Children with Autism Spectrum Disorder. Int J Mol Sci 2019; 20:ijms20133285. [PMID: 31277383 PMCID: PMC6650879 DOI: 10.3390/ijms20133285] [Citation(s) in RCA: 55] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2019] [Revised: 07/01/2019] [Accepted: 07/03/2019] [Indexed: 02/06/2023] Open
Abstract
Autism Spectrum Disorder (ASD) is a developmental disorder characterized by social and communication deficits and repetitive behaviors. Children with ASD are also at a higher risk for developing overweight or obesity than children with typical development (TD). Childhood obesity has been associated with adverse health outcomes, including insulin resistance, diabetes, heart disease, and certain cancers. Importantly some key factors that play a mediating role in these higher rates of obesity include lifestyle factors and biological influences, as well as secondary comorbidities and medications. This review summarizes current knowledge about behavioral and lifestyle factors that could contribute to unhealthy weight gain in children with ASD, as well as the current state of knowledge of emerging risk factors such as the possible influence of sleep problems, the gut microbiome, endocrine influences and maternal metabolic disorders. We also discuss some of the clinical implications of these risk factors and areas for future research.
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100
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Luoto S, Krams I, Rantala MJ. Response to Commentaries: Life History Evolution, Causal Mechanisms, and Female Sexual Orientation. ARCHIVES OF SEXUAL BEHAVIOR 2019; 48:1335-1347. [PMID: 31119422 DOI: 10.1007/s10508-019-1439-0] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2019] [Accepted: 03/16/2019] [Indexed: 06/09/2023]
Affiliation(s)
- Severi Luoto
- English, Drama and Writing Studies, University of Auckland, Arts 1, Bldg. 206, Room 616, 14A Symonds St., Auckland, 1010, New Zealand.
- School of Psychology, University of Auckland, Auckland, New Zealand.
| | - Indrikis Krams
- Department of Zoology and Animal Ecology, University of Latvia, Rīga, Latvia
- Institute of Ecology and Earth Sciences, University of Tartu, Tartu, Estonia
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