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Hung LY, Margolis KG. Autism spectrum disorders and the gastrointestinal tract: insights into mechanisms and clinical relevance. Nat Rev Gastroenterol Hepatol 2024; 21:142-163. [PMID: 38114585 DOI: 10.1038/s41575-023-00857-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 10/11/2023] [Indexed: 12/21/2023]
Abstract
Autism spectrum disorders (ASDs) are recognized as central neurodevelopmental disorders diagnosed by impairments in social interactions, communication and repetitive behaviours. The recognition of ASD as a central nervous system (CNS)-mediated neurobehavioural disorder has led most of the research in ASD to be focused on the CNS. However, gastrointestinal function is also likely to be affected owing to the neural mechanistic nature of ASD and the nervous system in the gastrointestinal tract (enteric nervous system). Thus, it is unsurprising that gastrointestinal disorders, particularly constipation, diarrhoea and abdominal pain, are highly comorbid in individuals with ASD. Gastrointestinal problems have also been repeatedly associated with increased severity of the core symptoms diagnostic of ASD and other centrally mediated comorbid conditions, including psychiatric issues, irritability, rigid-compulsive behaviours and aggression. Despite the high prevalence of gastrointestinal dysfunction in ASD and its associated behavioural comorbidities, the specific links between these two conditions have not been clearly delineated, and current data linking ASD to gastrointestinal dysfunction have not been extensively reviewed. This Review outlines the established and emerging clinical and preclinical evidence that emphasizes the gut as a novel mechanistic and potential therapeutic target for individuals with ASD.
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Affiliation(s)
- Lin Y Hung
- Department of Molecular Pathobiology, College of Dentistry, New York University, New York, NY, USA
| | - Kara Gross Margolis
- Department of Molecular Pathobiology, College of Dentistry, New York University, New York, NY, USA.
- Department of Cell Biology, NYU Grossman School of Medicine and Langone Medical Center, New York, NY, USA.
- Department of Pediatrics, NYU Grossman School of Medicine and Langone Medical Center, New York, NY, USA.
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Ma L, Wang D. Sex differences in the susceptibility to valproic acid-associated liver injury in epileptic patients. Clin Toxicol (Phila) 2024; 62:101-106. [PMID: 38512019 DOI: 10.1080/15563650.2024.2316144] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2023] [Accepted: 02/03/2024] [Indexed: 03/22/2024]
Abstract
BACKGROUND Valproic acid has been widely used as an antiepileptic drug for several decades. Long-term valproic acid treatment is usually accompanied by liver injury. Although both men and women are susceptible to valproic acid-associated liver injury, hepatotoxicity differs between the sexes. However, the mechanisms underlying sex differences in valproic acid-associated liver injury remain unclear. METHODS To explore potential risk factors for the susceptibility to valproic acid-associated liver injury, 231 pediatric patients with epilepsy (119 males, 112 females) were enrolled for laboratory and genetic analysis. RESULTS Heterozygous genotype of catalase C-262T (P = 0.045) and the concentrations of glutathione (P = 0.002) and thiobarbituric acid-reactive substances (P = 0.011) were associated with the sex-specific susceptibility to valproic acid-associated liver injury. Meanwhile, logistic regression analysis revealed that carriers of heterozygous genotype of catalase C-262T (P = 0.010, odds ratio: 4.163; 95 percent confidence interval 1.400 - 7.378), glutathione concentration (P = 0.001, odds ratio: 2.421; 95 percent confidence interval 2.262 - 2.591) and male patients (P = 0.005, odds ratio: 1.344; 95% confidence interval 0.782 - 2.309) had a higher risk for valproic acid-associated liver injury. DISCUSSION The mechanism underlying valproic acid-induced hepatotoxicity remains unclear. Additionally, factors that may contribute to the observed differences in the incidence of hepatotoxicity between males and females have yet to be defined. This study identifies several genetic factors that may predispose patients to valproic acid-associated hepatotoxicity. LIMITATIONS This relatively small sample size of children with one ethnicity some of whom were taking other antiepileptics that are potentially hepatotoxic. CONCLUSION Catalase C-262T genotype, glutathione concentration and gender (male) are potential risk factors for the susceptibility to valproic acid-associated liver injury.
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Affiliation(s)
- Linfeng Ma
- Department of Clinical Laboratory, Yantai Yuhuangding Hospital, Yantai, Shandong, China
| | - Dan Wang
- School of life science, Jilin University, Changchun, Jilin, China
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Siddi C, Cosentino S, Tamburini E, Concas L, Pisano MB, Ardu R, Deplano M, Follesa P, Maciocco E, Porcu P, Serra M, Pisu MG. Parental Social Isolation during Adolescence Alters Gut Microbiome in Rat Male Offspring. Biomolecules 2024; 14:172. [PMID: 38397408 PMCID: PMC10886888 DOI: 10.3390/biom14020172] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Revised: 01/23/2024] [Accepted: 01/29/2024] [Indexed: 02/25/2024] Open
Abstract
Previous work from our laboratory demonstrated that parental stress, induced by social isolation starting at puberty, leads to behavioral, endocrine, and biochemical changes in the male, but not female, offspring (ISO-O) of Sprague-Dawley rats. Here, we report alterations in the gut microbiota composition of ISO-O vs. grouped-housed offspring (GH-O), although all animals received the same diet and were housed in the same conditions. Analysis of bacterial communities by next-generation sequencing (NGS) of 16S rRNA gene revealed alterations at family and order levels within the main phyla of Bacteroides, Proteobacteria, and Firmicutes, including an almost total deficit in Limosilactobacillus reuteri (formerly Lactobacillus reuteri) and a significant increase in Ligilactobacillus murinus (formerly Lactobacillus murinus). In addition, we found an increase in the relative abundance of Rhodospirillales and Clostridiales in the families of Lachnospiraceae and Ruminococcaceae, and Bacteroidales in the family of Prevotellaceae. Furthermore, we examined plasma levels of the proinflammatory cytokines interleukin-1-beta and tumor necrosis factor-alpha, which did not differ between the two groups, while corticosterone concentrations were significantly increased in ISO-O rats. Our findings suggest that adverse environmental conditions experienced by parents may have an impact on the likelihood of disease development in the subsequent generations.
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Affiliation(s)
- Carlotta Siddi
- Department of Life and Environmental Sciences, Section of Neuroscience and Anthropology, University of Cagliari, Monserrato, 09042 Cagliari, Italy; (C.S.); (L.C.); (P.F.)
| | - Sofia Cosentino
- Department of Medical Sciences and Public Health, University of Cagliari, Monserrato, 09042 Cagliari, Italy; (S.C.); (M.B.P.); (M.D.)
| | - Elena Tamburini
- Department of Biomedical Sciences, University of Cagliari, Monserrato, 09042 Cagliari, Italy; (E.T.); (R.A.)
| | - Luca Concas
- Department of Life and Environmental Sciences, Section of Neuroscience and Anthropology, University of Cagliari, Monserrato, 09042 Cagliari, Italy; (C.S.); (L.C.); (P.F.)
| | - Maria Barbara Pisano
- Department of Medical Sciences and Public Health, University of Cagliari, Monserrato, 09042 Cagliari, Italy; (S.C.); (M.B.P.); (M.D.)
| | - Riccardo Ardu
- Department of Biomedical Sciences, University of Cagliari, Monserrato, 09042 Cagliari, Italy; (E.T.); (R.A.)
| | - Maura Deplano
- Department of Medical Sciences and Public Health, University of Cagliari, Monserrato, 09042 Cagliari, Italy; (S.C.); (M.B.P.); (M.D.)
| | - Paolo Follesa
- Department of Life and Environmental Sciences, Section of Neuroscience and Anthropology, University of Cagliari, Monserrato, 09042 Cagliari, Italy; (C.S.); (L.C.); (P.F.)
| | - Elisabetta Maciocco
- Neuroscience Institute, National Research Council of Italy (CNR), Monserrato, 09042 Cagliari, Italy; (E.M.); (P.P.); (M.G.P.)
| | - Patrizia Porcu
- Neuroscience Institute, National Research Council of Italy (CNR), Monserrato, 09042 Cagliari, Italy; (E.M.); (P.P.); (M.G.P.)
| | - Mariangela Serra
- Department of Life and Environmental Sciences, Section of Neuroscience and Anthropology, University of Cagliari, Monserrato, 09042 Cagliari, Italy; (C.S.); (L.C.); (P.F.)
| | - Maria Giuseppina Pisu
- Neuroscience Institute, National Research Council of Italy (CNR), Monserrato, 09042 Cagliari, Italy; (E.M.); (P.P.); (M.G.P.)
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Yang J, He L, Dai S, Zheng H, Cui X, Ou J, Zhang X. Therapeutic efficacy of sulforaphane in autism spectrum disorders and its association with gut microbiota: animal model and human longitudinal studies. Front Nutr 2024; 10:1294057. [PMID: 38260076 PMCID: PMC10800504 DOI: 10.3389/fnut.2023.1294057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2023] [Accepted: 12/11/2023] [Indexed: 01/24/2024] Open
Abstract
Introduction Sulforaphane (SFN) has been found to alleviate complications linked with several diseases by regulating gut microbiota (GM), while the effect of GM on SFN for autism spectrum disorders (ASD) has not been studied. Therefore, this study aimed to investigate the relationship between the effects of SFN on childhood ASD and GM through animal model and human studies. Methods We evaluated the therapeutic effects of SFN on maternal immune activation (MIA) induced ASD-like rat model and pediatric autism patients using three-chamber social test and OSU Autism Rating Scale-DSM-IV (OARS-4), respectively, with parallel GM analysis using 16SrRNA sequencing. Results SFN significantly improved the sniffing times of ASD-like rats in the three-chamber test. For human participants, the average verbal or non-verbal communication (OSU-CO) scores of SFN group had changed significantly at the 12-wk endpoint. SFN was safe and no serious side effects after taking. GM changes were similar for both ASD-like rats and ASD patients, such as consistent changes in order Bacillales, family Staphylococcaceae and genus Staphylococcus. Although the gut microbiota composition was significantly altered in SFN-treated ASD-like rats, the alteration of GM was not evident in ASD patients after 12 weeks of SFN treatment. However, in the network analysis, we found 25 taxa correlated with rats' social behavior, 8 of which were associated with SFN treatment in ASD-like rats, For ASD patients, we found 35 GM abundance alterations correlated with improvements in ASD symptoms after SFN treatment. Moreover, family Pasteurellaceae and genus Haemophilus were found to be associated with SFN administration in the network analyses in both ASD-like rats and ASD patients. Discussion These findings suggest that SFN could provide a novel avenue for preventing and treating ASD, and its therapeutic effects might be related to gut microbiota.
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Affiliation(s)
| | | | | | | | | | - Jianjun Ou
- Department of Psychiatry, National Clinical Research Center for Mental Disorders, and National Center for Mental Disorders, The Second Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Xiaojie Zhang
- Department of Psychiatry, National Clinical Research Center for Mental Disorders, and National Center for Mental Disorders, The Second Xiangya Hospital of Central South University, Changsha, Hunan, China
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Aljarboa AS, Alhusaini AM, Sarawi WS, Mohammed R, Ali RA, Hasan IH. The implication of LPS/TLR4 and FXR receptors in hepatoprotective efficacy of indole-3-acetic acid and chenodeoxycholic acid. Life Sci 2023; 334:122182. [PMID: 37863258 DOI: 10.1016/j.lfs.2023.122182] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2023] [Revised: 10/05/2023] [Accepted: 10/14/2023] [Indexed: 10/22/2023]
Abstract
AIM Valproic acid (VPA) belongs to the first-generation antiepileptic drugs, yet its prolonged use can cause life-threatening liver damage. The importance of our study is to investigate the protective effect of indole-3-acetic acid (IAA), chenodeoxycholic acid (CDCA) and their combination on VPA-induced liver injury focusing on lipopolysaccharides (LPS)/toll-like receptor 4 (TLR4) pathway and farnesoid X receptor (FXR). METHODS Thirty rats were randomly assigned into five groups, normal control group, VPA group received 500 mg/kg of VPA intraperitoneally. The remaining groups were orally treated with either 40 mg/kg of IAA, 90 mg/kg of CDCA, or a combination of both, along with VPA. All treatments were administered one hour after the administration of VPA for three weeks. KEY FINDINGS VPA group showed significant elevations in the liver weight/body weight ratio, serum aminotransferases, triglyceride, and total cholesterol levels. Hepatic glutathione (GSH) level and superoxide dismutase (SOD) activity were significantly decreased, while malondialdehyde (MDA) level, tumor necrosis factor-α (TNF-α), interleukin-1beta (IL-1β), lipopolysaccharide (LPS) and caspase 3 were significantly increased. Likewise, immunohistochemical analysis revealed that TLR4 expression was elevated, whereas FXR expression was downregulated in hepatocytes. IAA substantially ameliorated all previously altered parameters, whereas CDCA treatment showed a partial improvement compared to IAA. Surprisingly, combination therapy of IAA with CDCA showed an additive effect only in the hepatic expression of TLR4 and FXR proteins. SIGNIFICANCE IAA could be a promising protective agent against VPA-induced liver injury.
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Affiliation(s)
- Amjad S Aljarboa
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, P.O. Box 22452, Riyadh 11495, Saudi Arabia.
| | - Ahlam M Alhusaini
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, P.O. Box 22452, Riyadh 11495, Saudi Arabia.
| | - Wedad S Sarawi
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, P.O. Box 22452, Riyadh 11495, Saudi Arabia.
| | - Raeesa Mohammed
- Department of Histology, College of Medicine, King Saud University, P.O. Box 2925, Riyadh 11461, Saudi Arabia.
| | - Rehab A Ali
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, P.O. Box 22452, Riyadh 11495, Saudi Arabia.
| | - Iman H Hasan
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, P.O. Box 22452, Riyadh 11495, Saudi Arabia.
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Ke S, Hartmann J, Ressler KJ, Liu YY, Koenen KC. The emerging role of the gut microbiome in posttraumatic stress disorder. Brain Behav Immun 2023; 114:360-370. [PMID: 37689277 PMCID: PMC10591863 DOI: 10.1016/j.bbi.2023.09.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/15/2023] [Revised: 08/28/2023] [Accepted: 09/06/2023] [Indexed: 09/11/2023] Open
Abstract
Posttraumatic stress disorder (PTSD) occurs in some people following exposure to a terrifying or catastrophic event involving actual/threatened death, serious injury, or sexual violence. PTSD is a common and debilitating mental disorder that imposes a significant burden on individuals, their families, health services, and society. Moreover, PTSD is a risk factor for chronic diseases such as coronary heart disease, stroke, diabetes, as well as premature mortality. Furthermore, PTSD is associated with dysregulated immune function. Despite the high prevalence of PTSD, the mechanisms underlying its etiology and manifestations remain poorly understood. Compelling evidence indicates that the human gut microbiome, a complex community of microorganisms living in the gastrointestinal tract, plays a crucial role in the development and function of the host nervous system, complex behaviors, and brain circuits. The gut microbiome may contribute to PTSD by influencing inflammation, stress responses, and neurotransmitter signaling, while bidirectional communication between the gut and brain involves mechanisms such as microbial metabolites, immune system activation, and the vagus nerve. In this literature review, we summarize recent findings on the role of the gut microbiome in PTSD in both human and animal studies. We discuss the methodological limitations of existing studies and suggest future research directions to further understand the role of the gut microbiome in PTSD.
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Affiliation(s)
- Shanlin Ke
- Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA 02115, USA
| | - Jakob Hartmann
- Department of Psychiatry, Harvard Medical School, McLean Hospital, Belmont, MA 02478, USA
| | - Kerry J Ressler
- Department of Psychiatry, Harvard Medical School, McLean Hospital, Belmont, MA 02478, USA
| | - Yang-Yu Liu
- Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA 02115, USA; Center for Artificial Intelligence and Modeling, The Carl R. WoeseInstitute for Genomic Biology, University of Illinois at Urbana-Champaign, Champaign, IL, USA.
| | - Karestan C Koenen
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA 02115, USA.
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Gevorgyan H, Abaghyan T, Mirumyan M, Yenkoyan K, Trchounian K. Propionic and valproic acids have an impact on bacteria viability, proton flux and ATPase activity. J Bioenerg Biomembr 2023; 55:397-408. [PMID: 37700074 DOI: 10.1007/s10863-023-09983-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2023] [Accepted: 08/29/2023] [Indexed: 09/14/2023]
Abstract
Short-chain fatty acids like propionic (PPA) and valproic acids (VP) can alter gut microbiota, which is suggested to play a role in development of autism spectrum disorders (ASD). In this study we investigated the role of various concentrations of PPA and VP in gut enteric gram-negative Escherichia coli K12 and gram-positive Enterococcus hirae ATCC 9790 bacteria growth properties, ATPase activity and proton flux. The specific growth rate (µ) was 0.24 h-1 and 0.82 h-1 in E. coli and E. hirae, respectively. Different concentrations of PPA reduced the value of µ similarly in both strains. PPA affects membrane permeability only in E. hirae. PPA decreased DCCD-sensitive ATPase activity in the presence of K+ ions by 20% in E. coli and 40% in E. hirae suggesting the importance of the FOF1-K+ transport system in the regulation of PPA-disrupted homeostasis. Moreover, the H+ flux during PPA consumption could be the protective mechanism for enteric bacteria. VP has a selective effect on the µ depending on bacteria. The overwhelming effect of VP was detected on the K+-promoted ATPase activity in E. hirae. Taken together it can be suggested that PPA and VP have a disruptive effect on E. coli and E. hirae growth, viability, bioenergetic and biochemical properties, which are connected with the alteration of FOF1-ATPase activity and H+ flux rate or direction.
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Affiliation(s)
- Heghine Gevorgyan
- Department of Biochemistry, Microbiology and Biotechnology, Faculty of Biology, Yerevan State University, 1 A. Manoogian Str, Yerevan, 0025, Armenia
- Scientific-Research Institute of Biology, Faculty of Biology, Yerevan State University, Yerevan, 0025, Armenia
- Microbial Biotechnologies and Biofuel Innovation Center, Yerevan State University, Yerevan, 0025, Armenia
| | - Tamara Abaghyan
- Department of Biochemistry, Microbiology and Biotechnology, Faculty of Biology, Yerevan State University, 1 A. Manoogian Str, Yerevan, 0025, Armenia
- Microbial Biotechnologies and Biofuel Innovation Center, Yerevan State University, Yerevan, 0025, Armenia
- Neuroscience Laboratory, Cobrain Center, Yerevan State Medical University named after M. Heratsi, Yerevan, 0025, Armenia
| | - Margarita Mirumyan
- Neuroscience Laboratory, Cobrain Center, Yerevan State Medical University named after M. Heratsi, Yerevan, 0025, Armenia
- Department of Biochemistry, Yerevan State Medical University named after M. Heratsi, Yerevan, 0025, Armenia
| | - Konstantin Yenkoyan
- Neuroscience Laboratory, Cobrain Center, Yerevan State Medical University named after M. Heratsi, Yerevan, 0025, Armenia.
- Department of Biochemistry, Yerevan State Medical University named after M. Heratsi, Yerevan, 0025, Armenia.
| | - Karen Trchounian
- Department of Biochemistry, Microbiology and Biotechnology, Faculty of Biology, Yerevan State University, 1 A. Manoogian Str, Yerevan, 0025, Armenia.
- Scientific-Research Institute of Biology, Faculty of Biology, Yerevan State University, Yerevan, 0025, Armenia.
- Microbial Biotechnologies and Biofuel Innovation Center, Yerevan State University, Yerevan, 0025, Armenia.
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Lei W, Cheng Y, Gao J, Liu X, Shao L, Kong Q, Zheng N, Ling Z, Hu W. Akkermansia muciniphila in neuropsychiatric disorders: friend or foe? Front Cell Infect Microbiol 2023; 13:1224155. [PMID: 37492530 PMCID: PMC10363720 DOI: 10.3389/fcimb.2023.1224155] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Accepted: 06/26/2023] [Indexed: 07/27/2023] Open
Abstract
An accumulating body of evidence suggests that the bacterium Akkermansia muciniphila exhibits positive systemic effects on host health, mainly by improving immunological and metabolic functions, and it is therefore regarded as a promising potential probiotic. Recent clinical and preclinical studies have shown that A. muciniphila plays a vital role in a variety of neuropsychiatric disorders by influencing the host brain through the microbiota-gut-brain axis (MGBA). Numerous studies observed that A. muciniphila and its metabolic substances can effectively improve the symptoms of neuropsychiatric disorders by restoring the gut microbiota, reestablishing the integrity of the gut mucosal barrier, regulating host immunity, and modulating gut and neuroinflammation. However, A. muciniphila was also reported to participate in the development of neuropsychiatric disorders by aggravating inflammation and influencing mucus production. Therefore, the exact mechanism of action of A. muciniphila remains much controversial. This review summarizes the proposed roles and mechanisms of A. muciniphila in various neurological and psychiatric disorders such as depression, anxiety, Parkinson's disease, Alzheimer's disease, multiple sclerosis, strokes, and autism spectrum disorders, and provides insights into the potential therapeutic application of A. muciniphila for the treatment of these conditions.
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Affiliation(s)
- Wenhui Lei
- Jinan Microecological Biomedicine Shandong Laboratory, Shandong First Medical University, Jinan, Shandong, China
| | - Yiwen Cheng
- Jinan Microecological Biomedicine Shandong Laboratory, Jinan, Shandong, China
- Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Jie Gao
- Jinan Microecological Biomedicine Shandong Laboratory, Jinan, Shandong, China
| | - Xia Liu
- Department of Intensive Care Unit, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Li Shao
- School of Clinical Medicine, Institute of Hepatology and Metabolic Diseases, The Affiliated Hospital of Hangzhou Normal University, Hangzhou Normal University, Hangzhou, Zhejiang, China
| | - Qingming Kong
- School of Biological Engineering, Hangzhou Medical College, Institute of Parasitic Diseases, Hangzhou, Zhejiang, China
| | - Nengneng Zheng
- Department of Obstetrics, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Zongxin Ling
- Jinan Microecological Biomedicine Shandong Laboratory, Jinan, Shandong, China
- Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Weiming Hu
- Department of Psychiatry, Quzhou Third Hospital, Quzhou, Zhejiang, China
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Ortega MA, Álvarez-Mon MA, García-Montero C, Fraile-Martínez Ó, Monserrat J, Martinez-Rozas L, Rodríguez-Jiménez R, Álvarez-Mon M, Lahera G. Microbiota-gut-brain axis mechanisms in the complex network of bipolar disorders: potential clinical implications and translational opportunities. Mol Psychiatry 2023; 28:2645-2673. [PMID: 36707651 PMCID: PMC10615769 DOI: 10.1038/s41380-023-01964-w] [Citation(s) in RCA: 16] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Revised: 01/02/2023] [Accepted: 01/13/2023] [Indexed: 01/28/2023]
Abstract
Bipolar disorders (BD) represent a severe leading disabling mental condition worldwide characterized by episodic and often progressive mood fluctuations with manic and depressive stages. The biological mechanisms underlying the pathophysiology of BD remain incompletely understood, but it seems that there is a complex picture of genetic and environmental factors implicated. Nowadays, gut microbiota is in the spotlight of new research related to this kind of psychiatric disorder, as it can be consistently related to several pathophysiological events observed in BD. In the context of the so-called microbiota-gut-brain (MGB) axis, it is shown to have a strong influence on host neuromodulation and endocrine functions (i.e., controlling the synthesis of neurotransmitters like serotonin or mediating the activation of the hypothalamic-pituitary-adrenal axis), as well as in modulation of host immune responses, critically regulating intestinal, systemic and brain inflammation (neuroinflammation). The present review aims to elucidate pathophysiological mechanisms derived from the MGB axis disruption and possible therapeutic approaches mainly focusing on gut microbiota in the complex network of BD. Understanding the mechanisms of gut microbiota and its bidirectional communication with the immune and other systems can shed light on the discovery of new therapies for improving the clinical management of these patients. Besides, the effect of psychiatric drugs on gut microbiota currently used in BD patients, together with new therapeutical approaches targeting this ecosystem (dietary patterns, probiotics, prebiotics, and other novelties) will also be contemplated.
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Affiliation(s)
- Miguel A Ortega
- Department of Medicine and Medical Specialities, University of Alcala, Alcalá de Henares, Spain.
- Ramón y Cajal Institute of Sanitary Research (IRYCIS), Madrid, Spain.
| | - Miguel Angel Álvarez-Mon
- Department of Medicine and Medical Specialities, University of Alcala, Alcalá de Henares, Spain
- Ramón y Cajal Institute of Sanitary Research (IRYCIS), Madrid, Spain
- Department of Psychiatry and Mental Health, Hospital Universitario Infanta Leonor, Madrid, Spain
| | - Cielo García-Montero
- Department of Medicine and Medical Specialities, University of Alcala, Alcalá de Henares, Spain
- Ramón y Cajal Institute of Sanitary Research (IRYCIS), Madrid, Spain
| | - Óscar Fraile-Martínez
- Department of Medicine and Medical Specialities, University of Alcala, Alcalá de Henares, Spain
- Ramón y Cajal Institute of Sanitary Research (IRYCIS), Madrid, Spain
| | - Jorge Monserrat
- Department of Medicine and Medical Specialities, University of Alcala, Alcalá de Henares, Spain
- Ramón y Cajal Institute of Sanitary Research (IRYCIS), Madrid, Spain
| | - Lucia Martinez-Rozas
- Department of Medicine and Medical Specialities, University of Alcala, Alcalá de Henares, Spain
- Ramón y Cajal Institute of Sanitary Research (IRYCIS), Madrid, Spain
| | - Roberto Rodríguez-Jiménez
- Department of Legal Medicine and Psychiatry, Complutense University, Madrid, Spain
- Institute for Health Research 12 de Octubre Hospital, (Imas 12)/CIBERSAM (Biomedical Research Networking Centre in Mental Health), Madrid, Spain
| | - Melchor Álvarez-Mon
- Department of Medicine and Medical Specialities, University of Alcala, Alcalá de Henares, Spain
- Ramón y Cajal Institute of Sanitary Research (IRYCIS), Madrid, Spain
- Immune System Diseases-Rheumatology, Oncology Service an Internal Medicine, University Hospital Príncipe de Asturias (CIBEREHD), Alcalá de Henares, Spain
- Psychiatry Service, Center for Biomedical Research in the Mental Health Network, University Hospital Príncipe de Asturias, Alcalá de Henares, Spain
| | - Guillermo Lahera
- Department of Medicine and Medical Specialities, University of Alcala, Alcalá de Henares, Spain
- Ramón y Cajal Institute of Sanitary Research (IRYCIS), Madrid, Spain
- Psychiatry Service, Center for Biomedical Research in the Mental Health Network, University Hospital Príncipe de Asturias, Alcalá de Henares, Spain
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Tamang MK, Ali A, Pertile RN, Cui X, Alexander S, Nitert MD, Palmieri C, Eyles D. Developmental vitamin D-deficiency produces autism-relevant behaviours and gut-health associated alterations in a rat model. Transl Psychiatry 2023; 13:204. [PMID: 37316481 PMCID: PMC10267107 DOI: 10.1038/s41398-023-02513-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Revised: 05/21/2023] [Accepted: 06/05/2023] [Indexed: 06/16/2023] Open
Abstract
Developmental vitamin D (DVD)-deficiency is an epidemiologically established risk factor for autism. Emerging studies also highlight the involvement of gut microbiome/gut physiology in autism. The current study aims to examine the effect of DVD-deficiency on a broad range of autism-relevant behavioural phenotypes and gut health. Vitamin D deficient rat dams exhibited altered maternal care, DVD-deficient pups showed increased ultrasonic vocalizations and as adolescents, social behaviour impairments and increased repetitive self-grooming behaviour. There were significant impacts of DVD-deficiency on gut health demonstrated by alterations to the microbiome, decreased villi length and increased ileal propionate levels. Overall, our animal model of this epidemiologically validated risk exposure for autism shows an expanded range of autism-related behavioural phenotypes and now alterations in gut microbiome that correlate with social behavioural deficits raising the possibility that DVD-deficiency induced ASD-like behaviours are due to alterations in gut health.
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Affiliation(s)
- Man Kumar Tamang
- Queensland Brain Institute, The University of Queensland, Brisbane, Australia
| | - Asad Ali
- Queensland Brain Institute, The University of Queensland, Brisbane, Australia
| | | | - Xiaoying Cui
- Queensland Brain Institute, The University of Queensland, Brisbane, Australia
- Queensland Centre for Mental Health Research, Wacol, Australia
| | - Suzy Alexander
- Queensland Brain Institute, The University of Queensland, Brisbane, Australia
- Queensland Centre for Mental Health Research, Wacol, Australia
| | - Marloes Dekker Nitert
- School of Chemistry and Molecular Bioscience, The University of Queensland, Brisbane, Australia
| | - Chiara Palmieri
- School of Veterinary Science, The University of Queensland, Gatton, Australia
| | - Darryl Eyles
- Queensland Brain Institute, The University of Queensland, Brisbane, Australia.
- Queensland Centre for Mental Health Research, Wacol, Australia.
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11
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Zahedi E, Sadr SS, Sanaeierad A, Roghani M. Chronic acetyl-L-carnitine treatment alleviates behavioral deficits and neuroinflammation through enhancing microbiota derived-SCFA in valproate model of autism. Biomed Pharmacother 2023; 163:114848. [PMID: 37163781 DOI: 10.1016/j.biopha.2023.114848] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2023] [Revised: 04/19/2023] [Accepted: 05/04/2023] [Indexed: 05/12/2023] Open
Abstract
Autism spectrum disorder is characterized by a variety of cellular and molecular abnormalities which leads to autism-associated behaviors. Besides behavioral defects, these individuals also suffer from various associated disorders such as gastrointestinal deficit, altered gut microbiota composition and their metabolite. This study examined the effect of ALC on microbiota SCFA production and its effects on brain inflammation in VPA autism model. After prenatal exposure to valproate (600 mg/kg, i.p.) on embryonic day 12.5, followed by ALC treatment (100 mg/kg during postnatal days 23-51, p.o.), ASD-like behaviors, SCFAs amount in feces, intestine integrity (Occludin and ZO-1 tight junction proteins), systemic and brain inflammation (TNF-α and IL-1β) were assessed. Then, Golgi-Cox staining and Western blot for Iba1 protein were utilized to identify the changes in microglia profile in cerebral cortex. In the VPA model, we found that induction of autism was associated with demoted levels of SCFAs in feces and disintegration of intestine tissue which led to elevated level of TNF-α in the plasma. Further, we characterized an increased number of microglia in our histology evaluation and Iba1 protein in cerebral cortex. We also observed elevated level of TNF-α and IL-1β in the cerebral cortex of VPA rat. All these abnormalities were significantly alleviated by ALC treatment. Overall, our findings suggest that alleviation of behavioral abnormalities by ALC therapy in the VPA model of autism is associated with an improvement in the gut microbiota SCFAs, intestinal barrier and recovery of microglia and inflammation in the brain.
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Affiliation(s)
- Elham Zahedi
- Department of Physiology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Seyed-Shahabeddin Sadr
- Department of Physiology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran; Electrophysiology Research Center, Neuroscience Institute, Tehran University of Medical Sciences, Tehran, Iran.
| | - Ashkan Sanaeierad
- Department of Physiology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Mehrdad Roghani
- Neurophysiology Research Center, Shahed University, Tehran, Iran.
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12
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A snapshot of gut microbiota data from murine models of Autism Spectrum Disorder: Still a blurred picture. Neurosci Biobehav Rev 2023; 147:105105. [PMID: 36804416 DOI: 10.1016/j.neubiorev.2023.105105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2022] [Revised: 01/31/2023] [Accepted: 02/16/2023] [Indexed: 02/20/2023]
Abstract
Autism Spectrum Disorder (ASD) is a heterogeneous neurodevelopmental disorder characterized by deficits in social communication and interaction and repetitive/stereotyped behaviors. In recent years, the role of microbiota-gut-brain axis in ASD pathogenesis received growing attention, appearing as an attractive therapeutic target. We provide a comprehensive overview of changes in microbiota composition in ASD murine models so far identified, and summarize the therapeutic approaches targeting the microbiota on ASD-like neurobehavioral profile. Although alterations in microbiota composition have been observed in both genetic and environmental murine models of ASD, a clear microbiota profile shared by different ASD murine models has not been identified. We documented substantial discrepancies among studies (often within the same model), likely due to several confounding factors (from sex and age of animals to housing conditions). Despite these limitations, ASD animal models (under standardized conditions) remain a useful tool to evaluate (i) the beneficial effects of manipulations of gut microbiota on behavioral abnormalities; (ii) underlying neurobiological mechanisms related to gut-brain axis; and (iii) to identify optimal time windows for therapeutic interventions.
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Wang L, Wang B, Wu C, Wang J, Sun M. Autism Spectrum Disorder: Neurodevelopmental Risk Factors, Biological Mechanism, and Precision Therapy. Int J Mol Sci 2023; 24:ijms24031819. [PMID: 36768153 PMCID: PMC9915249 DOI: 10.3390/ijms24031819] [Citation(s) in RCA: 17] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Revised: 01/12/2023] [Accepted: 01/13/2023] [Indexed: 01/19/2023] Open
Abstract
Autism spectrum disorder (ASD) is a heterogeneous, behaviorally defined neurodevelopmental disorder. Over the past two decades, the prevalence of autism spectrum disorders has progressively increased, however, no clear diagnostic markers and specifically targeted medications for autism have emerged. As a result, neurobehavioral abnormalities, neurobiological alterations in ASD, and the development of novel ASD pharmacological therapy necessitate multidisciplinary collaboration. In this review, we discuss the development of multiple animal models of ASD to contribute to the disease mechanisms of ASD, as well as new studies from multiple disciplines to assess the behavioral pathology of ASD. In addition, we summarize and highlight the mechanistic advances regarding gene transcription, RNA and non-coding RNA translation, abnormal synaptic signaling pathways, epigenetic post-translational modifications, brain-gut axis, immune inflammation and neural loop abnormalities in autism to provide a theoretical basis for the next step of precision therapy. Furthermore, we review existing autism therapy tactics and limits and present challenges and opportunities for translating multidisciplinary knowledge of ASD into clinical practice.
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Viana CE, Bortolotto VC, Araujo SM, Dahleh MMM, Machado FR, de Souza Pereira A, Moreira de Oliveira BP, Leimann FV, Gonçalves OH, Prigol M, Guerra GP. Lutein-loaded nanoparticles reverse oxidative stress, apoptosis, and autism spectrum disorder-like behaviors induced by prenatal valproic acid exposure in female rats. Neurotoxicology 2023; 94:223-234. [PMID: 36528186 DOI: 10.1016/j.neuro.2022.12.006] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Revised: 12/10/2022] [Accepted: 12/10/2022] [Indexed: 12/15/2022]
Abstract
Autism spectrum disorder (ASD) is a neurodevelopmental disorder characterized by deficits in social interaction and repetitive behaviors. In this study, we assessed the effect of lutein-loaded nanoparticles on ASD-like behaviors induced by prenatal valproic acid (VPA) exposure in female offspring rats and the possible involvement of oxidative stress and apoptosis. Pregnant female Wistar rats received a single intraperitoneal injection of VPA (600 mg/kg), on the gestational day 12.5. The VPA-exposed female offspring rats were divided into two subgroups and received either lutein-loaded nanoparticles (5 mg/kg) or saline by oral gavage, for 14 days. The animals were submitted to the three-chamber test and open field to evaluate ASD-like behaviors. The hippocampus was removed for the determination of oxidative stress indicators (ROS; TBARS; SOD and Nrf2) and apoptosis biomarkers (Hsp-70; p38-MAPK; Bax and Bcl-2). The exposure to lutein-loaded nanoparticles reversed sociability deficit, social memory deficit, and anxiety-like and repetitive behaviors induced by VPA, and restored the oxidative stress indicators and apoptosis biomarkers in the hippocampus. This neurochemical effect must be associated with the reversal of ASD-like behaviors. These results provide evidence that lutein-loaded nanoparticles are an alternative treatment for VPA-induced behavioral damage in female rats and suggest the involvement of oxidative stress.
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Affiliation(s)
- Cristini Escobar Viana
- Laboratório de Avaliações Farmacológicas e Toxicológicas Aplicadas às Moléculas Bioativas - LaftamBio, Universidade Federal do Pampa, Campus Itaqui, 97650-000 Itaqui, RS, Brazil; Programa de Pós-Graduação em Bioquímica, Universidade Federal do Pampa, Campus Uruguaiana, 97508-000 Uruguaiana, RS, Brazil
| | - Vandreza Cardoso Bortolotto
- Laboratório de Avaliações Farmacológicas e Toxicológicas Aplicadas às Moléculas Bioativas - LaftamBio, Universidade Federal do Pampa, Campus Itaqui, 97650-000 Itaqui, RS, Brazil; Programa de Pós-Graduação em Bioquímica, Universidade Federal do Pampa, Campus Uruguaiana, 97508-000 Uruguaiana, RS, Brazil
| | - Stífani Machado Araujo
- Laboratório de Avaliações Farmacológicas e Toxicológicas Aplicadas às Moléculas Bioativas - LaftamBio, Universidade Federal do Pampa, Campus Itaqui, 97650-000 Itaqui, RS, Brazil; Programa de Pós-Graduação em Bioquímica, Universidade Federal do Pampa, Campus Uruguaiana, 97508-000 Uruguaiana, RS, Brazil
| | - Mustafa Munir Mustafa Dahleh
- Laboratório de Avaliações Farmacológicas e Toxicológicas Aplicadas às Moléculas Bioativas - LaftamBio, Universidade Federal do Pampa, Campus Itaqui, 97650-000 Itaqui, RS, Brazil
| | - Franciéle Romero Machado
- Laboratório de Avaliações Farmacológicas e Toxicológicas Aplicadas às Moléculas Bioativas - LaftamBio, Universidade Federal do Pampa, Campus Itaqui, 97650-000 Itaqui, RS, Brazil; Programa de Pós-Graduação em Bioquímica, Universidade Federal do Pampa, Campus Uruguaiana, 97508-000 Uruguaiana, RS, Brazil
| | - Adson de Souza Pereira
- Programa de Pós-Graduação em Bioquímica, Universidade Federal do Pampa, Campus Uruguaiana, 97508-000 Uruguaiana, RS, Brazil
| | - Byanca Pereira Moreira de Oliveira
- Programa de Pós-Graduação em Tecnologia de Alimentos, Universidade Tecnológica Federal do Paraná, Campus Campo Mourão, 87301-006 Campo Mourão, PR, Brazil
| | - Fernanda Vitória Leimann
- Programa de Pós-Graduação em Tecnologia de Alimentos, Universidade Tecnológica Federal do Paraná, Campus Campo Mourão, 87301-006 Campo Mourão, PR, Brazil; Centro de Investigação de Montanha (CIMO), ESA, Instituto Politécnico de Bragança, Campus Santa Apolónia, 5300-253 Bragança, Portugal
| | - Odinei Hess Gonçalves
- Programa de Pós-Graduação em Tecnologia de Alimentos, Universidade Tecnológica Federal do Paraná, Campus Campo Mourão, 87301-006 Campo Mourão, PR, Brazil; Centro de Investigação de Montanha (CIMO), ESA, Instituto Politécnico de Bragança, Campus Santa Apolónia, 5300-253 Bragança, Portugal
| | - Marina Prigol
- Laboratório de Avaliações Farmacológicas e Toxicológicas Aplicadas às Moléculas Bioativas - LaftamBio, Universidade Federal do Pampa, Campus Itaqui, 97650-000 Itaqui, RS, Brazil; Programa de Pós-Graduação em Bioquímica, Universidade Federal do Pampa, Campus Uruguaiana, 97508-000 Uruguaiana, RS, Brazil
| | - Gustavo Petri Guerra
- Laboratório de Avaliações Farmacológicas e Toxicológicas Aplicadas às Moléculas Bioativas - LaftamBio, Universidade Federal do Pampa, Campus Itaqui, 97650-000 Itaqui, RS, Brazil; Programa de Pós-Graduação em Bioquímica, Universidade Federal do Pampa, Campus Uruguaiana, 97508-000 Uruguaiana, RS, Brazil.
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15
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Zhong JG, Lan WT, Feng YQ, Li YH, Shen YY, Gong JH, Zou Z, Hou X. Associations between dysbiosis gut microbiota and changes of neurotransmitters and short-chain fatty acids in valproic acid model rats. Front Physiol 2023; 14:1077821. [PMID: 37035670 PMCID: PMC10073564 DOI: 10.3389/fphys.2023.1077821] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2022] [Accepted: 03/03/2023] [Indexed: 04/11/2023] Open
Abstract
Introduction: The microbiota-gut-brain axis plays an important role in the pathophysiology of autism spectrum disorder, but its specific mechanisms remain unclear. This study aimed to explore the associations of changes in neurotransmitters and short-chain fatty acids with alterations in gut microbiota in valproic acid model rats. Methods: The autism model rats were established by prenatal exposure to valproic acid (VPA). The Morris water maze test, open field test, and three-chamber test were conducted to assess the behaviors of rats. 16S rRNA gene sequences extracted from fecal samples were used to assess the gut microbial composition. Gas and liquid chromatography-mass spectroscopy was used to identify short-chain fatty acids in fecal samples and neurotransmitters in the prefrontal cortex (PFC). Results: The results showed that 28 bacterial taxa between valproic acid model rats and control rats were identified, and the most differential bacterial taxa in valproic acid model rats and control rats belonged to metagenomic species and Lactobacillus intestinalis. Acetic acid, butyric acid, valeric acid, isobutyric acid, and isovaleric acid were significantly decreased in the valproic acid model rats compared to those in control rats. Five neurotransmitters (threonine, kynurenine, tryptophan, 5-hydroxyindoleacetic acid, denoted as 5-HIAA, and betaine aldehyde chloride, denoted as BAC) were significantly decreased, whereas betaine was increased in the prefrontal cortex of valproic acid model rats compared to control rats. A variety of neurotransmitters (≥4) were correlated with Pseudomonas, Collisella, and Streptococcus at the genus level, and they were also related to the decrease of short-chain fatty acids. Discussion: According to this study, we can preliminarily infer that gut microbiota or their metabolic productions (such as SCFAs) may influence central neurotransmitter metabolism through related pathways of the gut-brain axis. These results provide microbial and short-chain fatty acid (SCFA) frameworks for understanding the role of the microbiota-gut-brain axis in autism spectrum disorder and shed new light on autism spectrum disorder treatment.
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Affiliation(s)
- Jiu-Gen Zhong
- School of Sport and Health, Guangzhou Sport University, Guangzhou, Guangdong, China
- School of Kinesiology, Shanghai University of Sport, Shanghai, China
| | - Wan-Ting Lan
- School of Sport and Health, Guangzhou Sport University, Guangzhou, Guangdong, China
| | - Yan-Qing Feng
- School of Sport and Health, Guangzhou Sport University, Guangzhou, Guangdong, China
| | - Yin-Hua Li
- School of Sport and Health, Guangzhou Sport University, Guangzhou, Guangdong, China
- School of Kinesiology, Shanghai University of Sport, Shanghai, China
| | - Ying-Ying Shen
- School of Sport and Health, Guangzhou Sport University, Guangzhou, Guangdong, China
| | - Jia-Heng Gong
- School of Sport and Health, Guangzhou Sport University, Guangzhou, Guangdong, China
| | - Zhi Zou
- School of Sport and Health, Guangzhou Sport University, Guangzhou, Guangdong, China
- *Correspondence: Zhi Zou, ; Xiaohui Hou,
| | - Xiaohui Hou
- School of Sport and Health, Guangzhou Sport University, Guangzhou, Guangdong, China
- School of Kinesiology, Shanghai University of Sport, Shanghai, China
- *Correspondence: Zhi Zou, ; Xiaohui Hou,
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16
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Boktor JC, Adame MD, Rose DR, Schumann CM, Murray KD, Bauman MD, Careaga M, Mazmanian SK, Ashwood P, Needham BD. Global metabolic profiles in a non-human primate model of maternal immune activation: implications for neurodevelopmental disorders. Mol Psychiatry 2022; 27:4959-4973. [PMID: 36028571 PMCID: PMC9772216 DOI: 10.1038/s41380-022-01752-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Revised: 08/02/2022] [Accepted: 08/12/2022] [Indexed: 01/14/2023]
Abstract
Epidemiological evidence implicates severe maternal infections as risk factors for neurodevelopmental disorders, such as ASD and schizophrenia. Accordingly, animal models mimicking infection during pregnancy, including the maternal immune activation (MIA) model, result in offspring with neurobiological, behavioral, and metabolic phenotypes relevant to human neurodevelopmental disorders. Most of these studies have been performed in rodents. We sought to better understand the molecular signatures characterizing the MIA model in an organism more closely related to humans, rhesus monkeys (Macaca mulatta), by evaluating changes in global metabolic profiles in MIA-exposed offspring. Herein, we present the global metabolome in six peripheral tissues (plasma, cerebrospinal fluid, three regions of intestinal mucosa scrapings, and feces) from 13 MIA and 10 control offspring that were confirmed to display atypical neurodevelopment, elevated immune profiles, and neuropathology. Differences in lipid, amino acid, and nucleotide metabolism discriminated these MIA and control samples, with correlations of specific metabolites to behavior scores as well as to cytokine levels in plasma, intestinal, and brain tissues. We also observed modest changes in fecal and intestinal microbial profiles, and identify differential metabolomic profiles within males and females. These findings support a connection between maternal immune activation and the metabolism, microbiota, and behavioral traits of offspring, and may further the translational applications of the MIA model and the advancement of biomarkers for neurodevelopmental disorders such as ASD or schizophrenia.
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Affiliation(s)
- Joseph C Boktor
- Biology and Biological Engineering, California Institute of Technology, Pasadena, CA, 91125, USA
| | - Mark D Adame
- Biology and Biological Engineering, California Institute of Technology, Pasadena, CA, 91125, USA
| | - Destanie R Rose
- Department of Medical Microbiology and Immunology, University of California Davis, Davis, CA, 95616, USA
- The M.I.N.D. Institute, University of California, Davis, Sacramento, CA, 95817, USA
| | - Cynthia M Schumann
- The M.I.N.D. Institute, University of California, Davis, Sacramento, CA, 95817, USA
| | - Karl D Murray
- The M.I.N.D. Institute, University of California, Davis, Sacramento, CA, 95817, USA
| | - Melissa D Bauman
- The M.I.N.D. Institute, University of California, Davis, Sacramento, CA, 95817, USA
| | - Milo Careaga
- Department of Medical Microbiology and Immunology, University of California Davis, Davis, CA, 95616, USA
- The M.I.N.D. Institute, University of California, Davis, Sacramento, CA, 95817, USA
| | - Sarkis K Mazmanian
- Biology and Biological Engineering, California Institute of Technology, Pasadena, CA, 91125, USA
| | - Paul Ashwood
- Department of Medical Microbiology and Immunology, University of California Davis, Davis, CA, 95616, USA.
- The M.I.N.D. Institute, University of California, Davis, Sacramento, CA, 95817, USA.
| | - Brittany D Needham
- Department of Anatomy, Cell Biology & Physiology, Stark Neurosciences Research Institute, Indiana University School of Medicine, Indianapolis, IN, 46202, USA.
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17
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Zhang Y, Guo M, Zhang H, Wang Y, Li R, Liu Z, Zheng H, You C. Lactiplantibacillus plantarum ST-III-fermented milk improves autistic-like behaviors in valproic acid-induced autism spectrum disorder mice by altering gut microbiota. Front Nutr 2022; 9:1005308. [PMID: 36505260 PMCID: PMC9729765 DOI: 10.3389/fnut.2022.1005308] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Accepted: 11/03/2022] [Indexed: 11/25/2022] Open
Abstract
Introduction Autism spectrum disorder (ASD) is a serious neurodevelopmental disorder with a rising incidence. More and more studies have shown that abnormal microbiota composition may aggravate the behavioral symptoms and biological signs of ASD, and interventions of probiotics and diet have emerged as a potential improvement measure. Methods Lactiplantibacillus plantarum ST-III-fermented milk was applied as an oral intervention in a valproic acid (VPA)-induced ASD mice model, and the effect of probiotic intake on autistic-related behaviors and gut microbiota composition was evaluated by behavioral tests and 16S rRNA gene sequencing. Results Gender specificity was shown in VPA-induced behavioral abnormalities in a mouse model, and L. plantarum ST-III-fermented milk was effective in ameliorating the impaired social interaction in male ASD mouse models, but not for the anxiety behavior exhibited by female ASD mouse models. Meanwhile, dietary changes were found to be the main cause of the altered gut microbiota in mice, and additional intake of L. plantarum ST-III-fermented milk seemed to improve autistic-like behaviors in male ASD mouse models by modulating specific gut microbes. Discussion These findings suggest that L. plantarum ST-III-fermented milk may play a beneficial role in improving the behavioral symptoms of ASD and is expected to be one of the candidate functional foods for ASD.
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Affiliation(s)
- Yilin Zhang
- State Key Laboratory of Dairy Biotechnology, Shanghai Engineering Research Center of Dairy Biotechnology, Dairy Research Institute, Bright Dairy & Food Co., Ltd., Shanghai, China
| | - Min Guo
- NHC Key Lab of Reproduction Regulation (Shanghai Institute for Biomedical and Pharmaceutical Technologies), Fudan University, Shanghai, China
| | - Hongfa Zhang
- State Key Laboratory of Dairy Biotechnology, Shanghai Engineering Research Center of Dairy Biotechnology, Dairy Research Institute, Bright Dairy & Food Co., Ltd., Shanghai, China
| | - Yuezhu Wang
- NHC Key Lab of Reproduction Regulation (Shanghai Institute for Biomedical and Pharmaceutical Technologies), Fudan University, Shanghai, China,Shanghai-MOST Key Laboratory of Health and Disease Genomics, Chinese National Human Genome Center at Shanghai and Shanghai Institute for Biomedical and Pharmaceutical Technologies, Shanghai, China
| | - Ruiying Li
- State Key Laboratory of Dairy Biotechnology, Shanghai Engineering Research Center of Dairy Biotechnology, Dairy Research Institute, Bright Dairy & Food Co., Ltd., Shanghai, China
| | - Zhenmin Liu
- State Key Laboratory of Dairy Biotechnology, Shanghai Engineering Research Center of Dairy Biotechnology, Dairy Research Institute, Bright Dairy & Food Co., Ltd., Shanghai, China,*Correspondence: Zhenmin Liu,
| | - Huajun Zheng
- NHC Key Lab of Reproduction Regulation (Shanghai Institute for Biomedical and Pharmaceutical Technologies), Fudan University, Shanghai, China,Huajun Zheng,
| | - Chunping You
- State Key Laboratory of Dairy Biotechnology, Shanghai Engineering Research Center of Dairy Biotechnology, Dairy Research Institute, Bright Dairy & Food Co., Ltd., Shanghai, China,Chunping You,
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18
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Zhou C, Gong S, Xiang S, Liang L, Hu X, Huang R, Liao Z, Ma Y, Xiao Z, Qiu J. Changes and significance of gut microbiota in children with focal epilepsy before and after treatment. Front Cell Infect Microbiol 2022; 12:965471. [PMID: 36405958 PMCID: PMC9671114 DOI: 10.3389/fcimb.2022.965471] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2022] [Accepted: 10/13/2022] [Indexed: 11/06/2022] Open
Abstract
Objective To better understand the alterations in gut microbiota and metabolic pathways in children with focal epilepsy, and to further investigate the changes in the related gut microbiota and metabolic pathways in these children before and after treatment. Methods Ten patients with newly diagnosed focal epilepsy in Hunan Children’s Hospital from April, 2020 to October, 2020 were recruited into the case group. The case group was further divided into a pre-treatment subgroup and a post-treatment subgroup. Additionally, 14 healthy children of the same age were recruited into a control group. The microbial communities were analyzed using 16s rDNA sequencing data. Metastas and LEfSe were used to identify different bacteria between and within groups. The Kyoto Encyclopedia of Genes and Genomes database was used to KEGG enrichment analysis. Results There were significant differences in α diversity among the pre-treatment, post-treatment, and control groups. Besides, the differences in gut microbiota composition in 3 groups were identified by principal co-ordinates analysis (PCoA), which showed a similar composition of the pre-treatment and post-treatment subgroups. At the phyla level, the relative abundance of Actinobacteria in the pre-treatment subgroup was significantly higher than that in the control group, which decreased significantly after 3 months of treatment and showed no significant difference between the control group. In terms of the genus level, Escherichia/Shigella, Streptococcus, Collinsella, and Megamonas were enriched in the pre-treatment subgroup, while Faecalibacterium and Anaerostipes were enriched in the control group. The relative abundance of Escherichia/Shigella, Streptococcus, Collinsella, and Megamonas was reduced significantly after a three-month treatment. Despite some genera remaining significantly different between the post-treatment subgroup and control group, the number of significantly different genera decreased from 9 to 4 through treatment. Notably, we found that the carbohydrate metabolism, especially succinate, was related to focal epilepsy. Conclusion Children with focal epilepsy compared with healthy controls were associated with the statistically significant differences in the gut microbiota and carbohydrate metabolism. The differences were reduced and the carbohydrate metabolism improved after effective treatment. Our research may provide new directions for understanding the role of gut microbiota in the pathogenesis of focal epilepsy and better alternative treatments.
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Affiliation(s)
- Changci Zhou
- Academy of Pediatrics, Hengyang Medical School, University of South China, Hengyang, China
| | - Shuaizheng Gong
- Department of Hematology and Oncology, Hunan Children’s Hospital, Changsha, China
| | - Shiting Xiang
- Pediatrics Research Institute of Hunan Province, Hunan Children’s Hospital, Changsha, China
| | - Lijuan Liang
- Department of Emergency Center, Hunan Children’s Hospital, Changsha, China
| | - Xia Hu
- Department of Emergency Center, Hunan Children’s Hospital, Changsha, China
| | - Ruiwen Huang
- Department of Neonatology, Hunan Children’s Hospital, Changsha, China
| | - Zhenyu Liao
- Department of Neonatology, Hunan Children’s Hospital, Changsha, China
| | - Ye Ma
- Department of Neonatology, Hunan Children’s Hospital, Changsha, China
| | - Zhenghui Xiao
- Department of Emergency Center, Hunan Children’s Hospital, Changsha, China
- *Correspondence: Zhenghui Xiao, ; Jun Qiu,
| | - Jun Qiu
- Pediatrics Research Institute of Hunan Province, Hunan Children’s Hospital, Changsha, China
- *Correspondence: Zhenghui Xiao, ; Jun Qiu,
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19
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Jiang CC, Lin LS, Long S, Ke XY, Fukunaga K, Lu YM, Han F. Signalling pathways in autism spectrum disorder: mechanisms and therapeutic implications. Signal Transduct Target Ther 2022; 7:229. [PMID: 35817793 PMCID: PMC9273593 DOI: 10.1038/s41392-022-01081-0] [Citation(s) in RCA: 36] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2022] [Revised: 06/19/2022] [Accepted: 06/23/2022] [Indexed: 02/06/2023] Open
Abstract
Autism spectrum disorder (ASD) is a prevalent and complex neurodevelopmental disorder which has strong genetic basis. Despite the rapidly rising incidence of autism, little is known about its aetiology, risk factors, and disease progression. There are currently neither validated biomarkers for diagnostic screening nor specific medication for autism. Over the last two decades, there have been remarkable advances in genetics, with hundreds of genes identified and validated as being associated with a high risk for autism. The convergence of neuroscience methods is becoming more widely recognized for its significance in elucidating the pathological mechanisms of autism. Efforts have been devoted to exploring the behavioural functions, key pathological mechanisms and potential treatments of autism. Here, as we highlight in this review, emerging evidence shows that signal transduction molecular events are involved in pathological processes such as transcription, translation, synaptic transmission, epigenetics and immunoinflammatory responses. This involvement has important implications for the discovery of precise molecular targets for autism. Moreover, we review recent insights into the mechanisms and clinical implications of signal transduction in autism from molecular, cellular, neural circuit, and neurobehavioural aspects. Finally, the challenges and future perspectives are discussed with regard to novel strategies predicated on the biological features of autism.
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Affiliation(s)
- Chen-Chen Jiang
- International Joint Laboratory for Drug Target of Critical Illnesses; Key Laboratory of Cardiovascular & Cerebrovascular Medicine, School of Pharmacy, Nanjing Medical University, Nanjing, 211166, China
| | - Li-Shan Lin
- Department of Physiology, School of Basic Medical Sciences, Nanjing Medical University, Nanjing, 211166, China
| | - Sen Long
- Department of Pharmacy, Hangzhou Seventh People's Hospital, Mental Health Center Zhejiang University School of Medicine, Hangzhou, 310013, China
| | - Xiao-Yan Ke
- Child Mental Health Research Center, Nanjing Brain Hospital, Nanjing Medical University, Nanjing, 210029, China
| | - Kohji Fukunaga
- Department of CNS Drug Innovation, Graduate School of Pharmaceutical Sciences, Tohoku University, Sendai, 980-8578, Japan
| | - Ying-Mei Lu
- Department of Physiology, School of Basic Medical Sciences, Nanjing Medical University, Nanjing, 211166, China.
| | - Feng Han
- International Joint Laboratory for Drug Target of Critical Illnesses; Key Laboratory of Cardiovascular & Cerebrovascular Medicine, School of Pharmacy, Nanjing Medical University, Nanjing, 211166, China. .,Institute of Brain Science, The Affiliated Brain Hospital of Nanjing Medical University, Nanjing, 210029, China. .,Gusu School, Nanjing Medical University, Suzhou Municipal Hospital, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou, 215002, China.
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20
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Zhou L, Zeng X, Liao J, Chen L, Ouyang D. Gut Microbiota Modulates the Protective Role of Ginsenoside Compound K Against Sodium Valproate-Induced Hepatotoxicity in Rat. Front Microbiol 2022; 13:936585. [PMID: 35875589 PMCID: PMC9302921 DOI: 10.3389/fmicb.2022.936585] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Accepted: 06/13/2022] [Indexed: 11/20/2022] Open
Abstract
This study aimed to investigate the potential role of gut microbiota in the hepatotoxicity of sodium valproate (SVP) and the protective effect of ginsenoside compound K (G-CK) administration against SVP-induced hepatotoxicity in rats. Measurements of 16S rRNA showed that SVP supplementation led to a 140.749- and 248.900-fold increase in the relative abundance of Akkermansia muciniphila (A. muciniphila) and Bifidobacterium pseudolongum (B. pseudolongum), respectively (p < 0.05). The increase in A. muciniphila was almost completely reversed by G-CK treatment. The relative abundance of A. muciniphila was strongly positively correlated with aspartate transaminase (AST) and alanine aminotransferase (ALT) levels (r > 0.78, p < 0.05). The PICRUSt analysis showed that G-CK could inhibit the changes of seven pathways caused by SVP, of which four pathways, including the fatty acid biosynthesis, lipid biosynthesis, glycolysis/gluconeogenesis, and pyruvate metabolism, were found to be negatively correlated with AST and ALT levels (r ≥ 0.70, p < 0.01 or < 0.05). In addition, the glycolysis/gluconeogenesis and pyruvate metabolism were negatively correlated with the relative abundance of A. muciniphila (r > 0.65, p < 0.01 or < 0.05). This alteration of the gut microbiota composition that resulted in observed changes to the glycolysis/gluconeogenesis and pyruvate metabolism may be involved in both the hepatotoxicity of SVP and the protective effect of G-CK administration against SVP-induced hepatotoxicity. Our study provides new evidence linking the gut microbiota with SVP-induced hepatotoxicity.
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Affiliation(s)
- Luping Zhou
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha, China
- Hunan Key Laboratory of Pharmacogenetics, Institute of Clinical Pharmacology, Central South University, Changsha, China
- Engineering Research Center of Applied Technology of Pharmacogenomics, Ministry of Education, Changsha, China
- National Clinical Research Center for Geriatric Disorders, Changsha, China
- The Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), Institute of Basic Medicine and Cancer (IBMC), Chinese Academy of Sciences, Hangzhou, China
| | - Xiangchang Zeng
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha, China
- Hunan Key Laboratory of Pharmacogenetics, Institute of Clinical Pharmacology, Central South University, Changsha, China
- Engineering Research Center of Applied Technology of Pharmacogenomics, Ministry of Education, Changsha, China
- National Clinical Research Center for Geriatric Disorders, Changsha, China
| | - Jianwei Liao
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha, China
- Hunan Key Laboratory of Pharmacogenetics, Institute of Clinical Pharmacology, Central South University, Changsha, China
- Engineering Research Center of Applied Technology of Pharmacogenomics, Ministry of Education, Changsha, China
- National Clinical Research Center for Geriatric Disorders, Changsha, China
| | - Lulu Chen
- Hunan Key Laboratory for Bioanalysis of Complex Matrix Samples, Changsha, China
- *Correspondence: Lulu Chen
| | - Dongsheng Ouyang
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha, China
- Hunan Key Laboratory of Pharmacogenetics, Institute of Clinical Pharmacology, Central South University, Changsha, China
- Engineering Research Center of Applied Technology of Pharmacogenomics, Ministry of Education, Changsha, China
- National Clinical Research Center for Geriatric Disorders, Changsha, China
- Hunan Key Laboratory for Bioanalysis of Complex Matrix Samples, Changsha, China
- Dongsheng Ouyang
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21
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Dai W, Liu J, Qiu Y, Teng Z, Li S, Yuan H, Huang J, Xiang H, Tang H, Wang B, Chen J, Wu H. Gut Microbial Dysbiosis and Cognitive Impairment in Bipolar Disorder: Current Evidence. Front Pharmacol 2022; 13:893567. [PMID: 35677440 PMCID: PMC9168430 DOI: 10.3389/fphar.2022.893567] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Accepted: 04/20/2022] [Indexed: 12/11/2022] Open
Abstract
Recent studies have reported that the gut microbiota influences mood and cognitive function through the gut-brain axis, which is involved in the pathophysiology of neurocognitive and mental disorders, including Parkinson’s disease, Alzheimer’s disease, and schizophrenia. These disorders have similar pathophysiology to that of cognitive dysfunction in bipolar disorder (BD), including neuroinflammation and dysregulation of various neurotransmitters (i.e., serotonin and dopamine). There is also emerging evidence of alterations in the gut microbial composition of patients with BD, suggesting that gut microbial dysbiosis contributes to disease progression and cognitive impairment in BD. Therefore, microbiota-centered treatment might be an effective adjuvant therapy for BD-related cognitive impairment. Given that studies focusing on connections between the gut microbiota and BD-related cognitive impairment are lagging behind those on other neurocognitive disorders, this review sought to explore the potential mechanisms of how gut microbial dysbiosis affects cognitive function in BD and identify potential microbiota-centered treatment.
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Affiliation(s)
- Wenyu Dai
- National Clinical Research Center for Mental Disorders, Department of Psychiatry, China National Technology Institute on Mental Disorders, The Second Xiangya Hospital of Central South University, Changsha, China
| | - Jieyu Liu
- Department of Ultrasound Diagnostic, The Second Xiangya Hospital of Central South University, Changsha, China
| | - Yan Qiu
- National Clinical Research Center for Mental Disorders, Department of Psychiatry, China National Technology Institute on Mental Disorders, The Second Xiangya Hospital of Central South University, Changsha, China
| | - Ziwei Teng
- National Clinical Research Center for Mental Disorders, Department of Psychiatry, China National Technology Institute on Mental Disorders, The Second Xiangya Hospital of Central South University, Changsha, China
| | - Sujuan Li
- National Clinical Research Center for Mental Disorders, Department of Psychiatry, China National Technology Institute on Mental Disorders, The Second Xiangya Hospital of Central South University, Changsha, China
| | - Hui Yuan
- Department of Ultrasound Diagnostic, The Second Xiangya Hospital of Central South University, Changsha, China
| | - Jing Huang
- National Clinical Research Center for Mental Disorders, Department of Psychiatry, China National Technology Institute on Mental Disorders, The Second Xiangya Hospital of Central South University, Changsha, China
| | - Hui Xiang
- National Clinical Research Center for Mental Disorders, Department of Psychiatry, China National Technology Institute on Mental Disorders, The Second Xiangya Hospital of Central South University, Changsha, China
| | - Hui Tang
- National Clinical Research Center for Mental Disorders, Department of Psychiatry, China National Technology Institute on Mental Disorders, The Second Xiangya Hospital of Central South University, Changsha, China
| | - Bolun Wang
- Department of Radiology, The Second Xiangya Hospital of Central South University, Changsha, China
| | - Jindong Chen
- National Clinical Research Center for Mental Disorders, Department of Psychiatry, China National Technology Institute on Mental Disorders, The Second Xiangya Hospital of Central South University, Changsha, China
| | - Haishan Wu
- National Clinical Research Center for Mental Disorders, Department of Psychiatry, China National Technology Institute on Mental Disorders, The Second Xiangya Hospital of Central South University, Changsha, China
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22
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Sauer AK, Hagmeyer S, Grabrucker AM. Prenatal Zinc Deficient Mice as a Model for Autism Spectrum Disorders. Int J Mol Sci 2022; 23:ijms23116082. [PMID: 35682762 PMCID: PMC9181257 DOI: 10.3390/ijms23116082] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Revised: 05/18/2022] [Accepted: 05/19/2022] [Indexed: 02/06/2023] Open
Abstract
Epidemiological studies have shown a clear association between early life zinc deficiency and Autism Spectrum Disorders (ASD). In line with this, mouse models have revealed prenatal zinc deficiency as a profound risk factor for neurobiological and behavioral abnormalities in the offspring reminiscent of ASD behavior. From these studies, a complex pathology emerges, with alterations in the gastrointestinal and immune system and synaptic signaling in the brain, as a major consequence of prenatal zinc deficiency. The features represent a critical link in a causal chain that leads to various neuronal dysfunctions and behavioral phenotypes observed in prenatal zinc deficient (PZD) mice and probably other mouse models for ASD. Given that the complete phenotype of PZD mice may be key to understanding how non-genetic factors can modify the clinical features and severity of autistic patients and explain the observed heterogeneity, here, we summarize published data on PZD mice. We critically review the emerging evidence that prenatal zinc deficiency is at the core of several environmental risk factors associated with ASD, being mechanistically linked to ASD-associated genetic factors. In addition, we highlight future directions and outstanding questions, including potential symptomatic, disease-modifying, and preventive treatment strategies.
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Affiliation(s)
- Ann Katrin Sauer
- Department of Biological Sciences, University of Limerick, V94 T9PX Limerick, Ireland; (A.K.S.); (S.H.)
- Bernal Institute, University of Limerick, V94 T9PX Limerick, Ireland
- Health Research Institute (HRI), University of Limerick, V94 T9PX Limerick, Ireland
| | - Simone Hagmeyer
- Department of Biological Sciences, University of Limerick, V94 T9PX Limerick, Ireland; (A.K.S.); (S.H.)
| | - Andreas M. Grabrucker
- Department of Biological Sciences, University of Limerick, V94 T9PX Limerick, Ireland; (A.K.S.); (S.H.)
- Bernal Institute, University of Limerick, V94 T9PX Limerick, Ireland
- Health Research Institute (HRI), University of Limerick, V94 T9PX Limerick, Ireland
- Correspondence: ; Tel.: +353-61-237756
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23
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Vellingiri B, Aishwarya SY, Benita Jancy S, Sriram Abhishek G, Winster Suresh Babu H, Vijayakumar P, Narayanasamy A, Mariappan S, Sangeetha R, Valsala Gopalakrishnan A, Parthasarathi R, Iyer M. An anxious relationship between Autism Spectrum Disorder and Gut Microbiota: A tangled chemistry? J Clin Neurosci 2022; 99:169-189. [PMID: 35286970 DOI: 10.1016/j.jocn.2022.03.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2021] [Revised: 03/01/2022] [Accepted: 03/02/2022] [Indexed: 12/27/2022]
Abstract
Autism spectrum disorder (ASD) is a serious multifactorial neurodevelopmental disorder often accompanied by strained social communication, repetitive behaviour, immune dysregulation, and gastrointestinal (GI) issues. Recent studies have recorded a link between dysbiosis in the gut microbiota (gm) and the primary stages of ASD. A bidirectional connection (also called microbiota-gut-brain-axis) exchanges information between the gut bacteria and central nervous system. When the homeostasis of the microenvironment of the gut is dysregulated, it causes oxidative stress, affecting neuronal cells and neurotransmitters, thereby causing neurodevelopmental disorders. Studies have confirmed a difference in the constitution of gut bacteria among ASD cases and their controls. Numerous studies on animal models of ASD have shown altered gm and its association with abnormal metabolite profile and altered behaviour phenotype. This process happens due to an abnormal metabolite production in gm, leading to changes in the immune system, especially in ASD. Hence, this review aims to question the current knowledge on gm dysbiosis and its related GI discomforts and ASD behavioural symptoms and shed light on the possible therapeutic approaches available to deal with this situation. Thereby, though it is understood that more research might be needed to prove an association or causal relationship between gm and ASD, therapy with the microbiome may also be considered as an effective strategy to combat this issue.
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Affiliation(s)
- Balachandar Vellingiri
- Human Molecular Cytogenetics and Stem Cell Laboratory, Department of Human Genetics and Molecular Biology, Bharathiar University, Coimbatore 641 046, Tamil Nadu, India.
| | - S Y Aishwarya
- Department of Biotechnology, Sri Shakthi Institute of Engineering and Technology, Coimbatore 641062, Tamil Nadu, India
| | - S Benita Jancy
- Department of Biotechnology, Sri Shakthi Institute of Engineering and Technology, Coimbatore 641062, Tamil Nadu, India
| | - G Sriram Abhishek
- Department of Biotechnology, Sri Shakthi Institute of Engineering and Technology, Coimbatore 641062, Tamil Nadu, India
| | - Harysh Winster Suresh Babu
- Human Molecular Cytogenetics and Stem Cell Laboratory, Department of Human Genetics and Molecular Biology, Bharathiar University, Coimbatore 641 046, Tamil Nadu, India; Disease Proteomics Laboratory, Department of Zoology, Bharathiar University, Coimbatore 641046, Tamil Nadu, India
| | - Padmavathi Vijayakumar
- Human Molecular Cytogenetics and Stem Cell Laboratory, Department of Human Genetics and Molecular Biology, Bharathiar University, Coimbatore 641 046, Tamil Nadu, India
| | - Arul Narayanasamy
- Disease Proteomics Laboratory, Department of Zoology, Bharathiar University, Coimbatore 641046, Tamil Nadu, India
| | - Sujitha Mariappan
- Department of Biotechnology, Sri Shakthi Institute of Engineering and Technology, Coimbatore 641062, Tamil Nadu, India
| | - R Sangeetha
- Department of Zoology and Wild Life Biology, Government Arts College, Udhagamandalam 643002, India
| | - Abilash Valsala Gopalakrishnan
- Department of Biomedical Sciences, School of Biosciences and Technology, Vellore Institute of Technology, Vellore 632014 Tamil Nadu, India
| | - Ramakrishnan Parthasarathi
- Computational Toxicology Facility, Centre for Innovation and Translational Research, Environmental Monitoring and Intervention Hub (DSIR-CRTDH), CSIR-Indian Institute of Toxicology Research, Lucknow 226001 Uttar Pradesh, India
| | - Mahalaxmi Iyer
- Livestock Farming and Bioresource Technology, Tamil Nadu, India.
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24
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Liu J, Gao Z, Liu C, Liu T, Gao J, Cai Y, Fan X. Alteration of Gut Microbiota: New Strategy for Treating Autism Spectrum Disorder. Front Cell Dev Biol 2022; 10:792490. [PMID: 35309933 PMCID: PMC8929512 DOI: 10.3389/fcell.2022.792490] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2021] [Accepted: 01/20/2022] [Indexed: 12/12/2022] Open
Abstract
Autism spectrum disorder (ASD) is defined as a complex heterogeneous disorder and characterized by stereotyped behavior and deficits in communication and social interactions. The emerging microbial knowledge has pointed to a potential link between gut microbiota dysbiosis and ASD. Evidence from animal and human studies showed that shifts in composition and activity of the gut microbiota may causally contribute to the etiopathogenesis of core symptoms in the ASD individuals with gastrointestinal tract disturbances and act on microbiota-gut-brain. In this review, we summarized the characterized gut bacterial composition of ASD and the involvement of gut microbiota and their metabolites in the onset and progression of ASD; the possible underlying mechanisms are also highlighted. Given this correlation, we also provide an overview of the microbial-based therapeutic interventions such as probiotics, antibiotics, fecal microbiota transplantation therapy, and dietary interventions and address their potential benefits on behavioral symptoms of ASD. The precise contribution of altering gut microbiome to treating core symptoms in the ASD needs to be further clarified. It seemed to open up promising avenues to develop microbial-based therapies in ASD.
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Affiliation(s)
- Jiayin Liu
- Department of Military Cognitive Psychology, School of Psychology, Third Military Medical University (Army Medical University), Chongqing, China
- Battalion 5th of Cadet Brigade, Third Military Medical University (Army Medical University), Army Medical University, Chongqing, China
| | - Zhanyuan Gao
- Department of Military Cognitive Psychology, School of Psychology, Third Military Medical University (Army Medical University), Chongqing, China
- Battalion 5th of Cadet Brigade, Third Military Medical University (Army Medical University), Army Medical University, Chongqing, China
| | - Chuanqi Liu
- Department of Military Cognitive Psychology, School of Psychology, Third Military Medical University (Army Medical University), Chongqing, China
- Battalion 5th of Cadet Brigade, Third Military Medical University (Army Medical University), Army Medical University, Chongqing, China
| | - Tianyao Liu
- Department of Military Cognitive Psychology, School of Psychology, Third Military Medical University (Army Medical University), Chongqing, China
| | - Junwei Gao
- Department of Military Cognitive Psychology, School of Psychology, Third Military Medical University (Army Medical University), Chongqing, China
| | - Yun Cai
- Department of Military Cognitive Psychology, School of Psychology, Third Military Medical University (Army Medical University), Chongqing, China
- *Correspondence: Yun Cai, ; Xiaotang Fan,
| | - Xiaotang Fan
- Department of Military Cognitive Psychology, School of Psychology, Third Military Medical University (Army Medical University), Chongqing, China
- *Correspondence: Yun Cai, ; Xiaotang Fan,
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25
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Deng W, Li F, Ke H, Wang S, Li Z, Lv P, Chen Y. Effect of Metformin in Autistic BTBR T+Itpr3tf/J Mice Administered a High-Fat Diet. Brain Res Bull 2022; 183:172-183. [PMID: 35240246 DOI: 10.1016/j.brainresbull.2022.02.021] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2021] [Revised: 02/25/2022] [Accepted: 02/27/2022] [Indexed: 02/06/2023]
Abstract
The biological mechanisms linking diet-related obesity and autism-related behaviors remain unclear. We aimed to characterize these interactions, focusing on gut microbiota, 5-hydroxytryptamine (5-HT) levels, and autistic behaviors in an animal model for autism; a high-fat diet (HFD) BTBR T+Itpr3tf/J (BTBR) mouse. In this model, we also examined the medication effects of metformin (Met) which is known to ameliorate several symptoms of autism spectrum disorder (ASD).Therefore, we hypothesized that HFD exacerbates BTBR autistic symptoms, which can be alleviated by Met, and the effects are associated with serotonin and the microbiota. As expected, compared with mice fed a normal diet, ten-week HFD-fed mice showed increased body weight, adiposity, and glucose levels. HFD consumption markedly aggravated repetitive behaviors in the self-grooming test. Met reduced HFD-induced hyperactivity. Notably, HFD intervention rescued sociability in the three-chamber sociability test. Furthermore, HFD stimulated tryptophan production, which was inhibited by Met. In contrast, 5-HT levels were lower in the gut and higher in the cortex in the HFD group. Moreover, Met suppressed inflammation in the hippocampus of HFD-fed mice by significantly downregulating the expression of pro-inflammatory cytokines (NF-κB, IL-17A, and IL-6). HFD increased the Firmicutes/Bacteroidetes ratio, and Met supplementation decreased richness while increasing bacterial diversity. We found that the abundance of gut microbiota (Lachnoclostridium, Anaerotruncus, Mucispirillum, and Lactococcus) was correlated with behavior scores and 5-HT levels. Overall, HFD consumption improved sociality in BTBR mice, which was related to the modulation of 5-HT levels and the composition of the microbiota. Met did not show any significant positive effects on the autism phenotype associated with HFD.
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Affiliation(s)
- Wenlin Deng
- Department of Gastroenterology, State Key Laboratory of Organ Failure Research, Nanfang Hospital, Southern Medical University, 510515, Guangzhou, Guangdong, China; Department of Pediatrics, The Sixth Affiliated Hospital of Sun Yat-sen University, 510655, Guangzhou, China; Wenlin Deng, Fang Li, Haoran Ke and Siqi Wang are co-first authors
| | - Fang Li
- Department of Gastroenterology, Gastroenterology Endoscopy center, Hainan General Hospital, Hainan Affiliated Hospital of Hainan Medical University, Haikou, 570311, China; Wenlin Deng, Fang Li, Haoran Ke and Siqi Wang are co-first authors
| | - Haoran Ke
- Department of Gastroenterology, State Key Laboratory of Organ Failure Research, Nanfang Hospital, Southern Medical University, 510515, Guangzhou, Guangdong, China; Wenlin Deng, Fang Li, Haoran Ke and Siqi Wang are co-first authors
| | - Siqi Wang
- Department of Gastroenterology, State Key Laboratory of Organ Failure Research, Nanfang Hospital, Southern Medical University, 510515, Guangzhou, Guangdong, China
| | - Zitong Li
- Department of Gastroenterology, State Key Laboratory of Organ Failure Research, Nanfang Hospital, Southern Medical University, 510515, Guangzhou, Guangdong, China
| | - Pinjing Lv
- Department of Gastroenterology, State Key Laboratory of Organ Failure Research, Nanfang Hospital, Southern Medical University, 510515, Guangzhou, Guangdong, China
| | - Ye Chen
- Department of Gastroenterology, State Key Laboratory of Organ Failure Research, Nanfang Hospital, Southern Medical University, 510515, Guangzhou, Guangdong, China.
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MEJÍA-GRANADOS DM, VILLASANA-SALAZAR B, COAN AC, RIZZI L, BALTHAZAR MLF, GODOI ABD, CANTO AMD, ROSA DCD, SILVA LS, TACLA RDR, DAMASCENO A, DONATTI A, AVELAR WM, SOUSA A, LOPES-CENDES I. Gut microbiome in neuropsychiatric disorders. ARQUIVOS DE NEURO-PSIQUIATRIA 2022; 80:192-207. [DOI: 10.1590/0004-282x-anp-2021-0052] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/12/2021] [Accepted: 05/10/2021] [Indexed: 12/20/2022]
Abstract
ABSTRACT Background: Neuropsychiatric disorders are a significant cause of death and disability worldwide. The mechanisms underlying these disorders include a constellation of structural, infectious, immunological, metabolic, and genetic etiologies. Advances in next-generation sequencing techniques have demonstrated that the composition of the enteric microbiome is dynamic and plays a pivotal role in host homeostasis and several diseases. The enteric microbiome acts as a key mediator in neuronal signaling via metabolic, neuroimmune, and neuroendocrine pathways. Objective: In this review, we aim to present and discuss the most current knowledge regarding the putative influence of the gut microbiome in neuropsychiatric disorders. Methods: We examined some of the preclinical and clinical evidence and therapeutic strategies associated with the manipulation of the gut microbiome. Results: targeted taxa were described and grouped from major studies to each disease. Conclusions: Understanding the complexity of these ecological interactions and their association with susceptibility and progression of acute and chronic disorders could lead to novel diagnostic biomarkers based on molecular targets. Moreover, research on the microbiome can also improve some emerging treatment choices, such as fecal transplantation, personalized probiotics, and dietary interventions, which could be used to reduce the impact of specific neuropsychiatric disorders. We expect that this knowledge will help physicians caring for patients with neuropsychiatric disorders.
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Affiliation(s)
| | | | - Ana Carolina COAN
- Instituto Brasileiro de Neurociências e Neurotecnologia, Brazil; Universidade de Campinas, Brazil
| | - Liara RIZZI
- Instituto Brasileiro de Neurociências e Neurotecnologia, Brazil; Universidade de Campinas, Brazil
| | | | | | - Amanda Morato do CANTO
- Universidade de Campinas, Brazil; Instituto Brasileiro de Neurociências e Neurotecnologia, Brazil
| | - Douglas Cescon da ROSA
- Universidade de Campinas, Brazil; Instituto Brasileiro de Neurociências e Neurotecnologia, Brazil
| | - Lucas Scárdua SILVA
- Instituto Brasileiro de Neurociências e Neurotecnologia, Brazil; Universidade de Campinas, Brazil
| | | | - Alfredo DAMASCENO
- Instituto Brasileiro de Neurociências e Neurotecnologia, Brazil; Universidade de Campinas, Brazil
| | - Amanda DONATTI
- Universidade de Campinas, Brazil; Instituto Brasileiro de Neurociências e Neurotecnologia, Brazil
| | - Wagner Mauad AVELAR
- Instituto Brasileiro de Neurociências e Neurotecnologia, Brazil; Universidade de Campinas, Brazil
| | - Alessandro SOUSA
- Instituto Brasileiro de Neurociências e Neurotecnologia, Brazil; Universidade de Campinas, Brazil
| | - Iscia LOPES-CENDES
- Universidade de Campinas, Brazil; Instituto Brasileiro de Neurociências e Neurotecnologia, Brazil
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27
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Abujamel TS, Al-Otaibi NM, Abuaish S, AlHarbi RH, Assas MB, Alzahrani SA, Alotaibi SM, El-Ansary A, Aabed K. Different Alterations in Gut Microbiota between Bifidobacterium longum and Fecal Microbiota Transplantation Treatments in Propionic Acid Rat Model of Autism. Nutrients 2022; 14:nu14030608. [PMID: 35276971 PMCID: PMC8838423 DOI: 10.3390/nu14030608] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Revised: 01/26/2022] [Accepted: 01/27/2022] [Indexed: 12/18/2022] Open
Abstract
Autism spectrum disorders (ASD) consist of a range of neurodevelopmental conditions accompanied by dysbiosis of gut microbiota. Therefore, a number of microbiota manipulation strategies were developed to restore their balance. However, a comprehensive comparison of the various methods on gut microbiota is still lacking. Here, we evaluated the effect of Bifidobacterium (BF) treatment and fecal microbiota transplantation (FT) on gut microbiota in a propionic acid (PPA) rat model of autism using 16S rRNA sequencing. Following PPA treatment, gut microbiota showed depletion of Bacteroidia and Akkermansia accompanied by a concomitant increase of Streptococcus, Lachnospiraceae, and Paraeggerthella. The dysbiosis was predicted to cause increased levels of porphyrin metabolism and impairments of acyl-CoA thioesterase and ubiquinone biosynthesis. On the contrary, BF and FT treatments resulted in a distinct increase of Clostridium, Bifidobacterium, Marvinbryantia, Butyricicoccus, and Dorea. The taxa in BF group positively correlated with vitamin B12 and flagella biosynthesis, while FT mainly enriched flagella biosynthesis. In contrast, BF and FT treatments negatively correlated with succinate biosynthesis, pyruvate metabolism, nitrogen metabolism, beta-Lactam resistance, and peptidoglycan biosynthesis. Therefore, the present study demonstrated that BF and FT treatments restored the PPA-induced dysbiosis in a treatment-specific manner.
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Affiliation(s)
- Turki S. Abujamel
- Vaccines and Immunotherapy Unit, King Fahd Medical Research Center, King Abdulaziz University, Jeddah 21589, Saudi Arabia;
- Department of Medical Laboratory Sciences, Faculty of Applied Medical Sciences, King Abdulaziz University, Jeddah 21589, Saudi Arabia;
- Correspondence: ; Tel.: +966-504-545-472
| | - Norah M. Al-Otaibi
- Department of Biology, College of Science, Princess Nourah Bint Abdulrahman University, P.O. Box 84428, Riyadh 11671, Saudi Arabia; (N.M.A.-O.); (S.A.A.); (S.M.A.); (K.A.)
| | - Sameera Abuaish
- Department of Basic Sciences, College of Medicine, Princess Nourah Bint Abdulrahman University, P.O. Box 84428, Riyadh 11671, Saudi Arabia;
| | - Rahaf H. AlHarbi
- Vaccines and Immunotherapy Unit, King Fahd Medical Research Center, King Abdulaziz University, Jeddah 21589, Saudi Arabia;
| | - Mushref B. Assas
- Department of Medical Laboratory Sciences, Faculty of Applied Medical Sciences, King Abdulaziz University, Jeddah 21589, Saudi Arabia;
| | - Saleha Ahmad Alzahrani
- Department of Biology, College of Science, Princess Nourah Bint Abdulrahman University, P.O. Box 84428, Riyadh 11671, Saudi Arabia; (N.M.A.-O.); (S.A.A.); (S.M.A.); (K.A.)
| | - Sohailah Masoud Alotaibi
- Department of Biology, College of Science, Princess Nourah Bint Abdulrahman University, P.O. Box 84428, Riyadh 11671, Saudi Arabia; (N.M.A.-O.); (S.A.A.); (S.M.A.); (K.A.)
| | - Afaf El-Ansary
- Central Laboratory, Female Center for Medical Studies and Scientific Section, King Saud University, P.O. Box 22452, Riyadh 11472, Saudi Arabia;
| | - Kawther Aabed
- Department of Biology, College of Science, Princess Nourah Bint Abdulrahman University, P.O. Box 84428, Riyadh 11671, Saudi Arabia; (N.M.A.-O.); (S.A.A.); (S.M.A.); (K.A.)
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28
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Gu Y, Han Y, Ren S, Zhang B, Zhao Y, Wang X, Zhang S, Qin J. Correlation among gut microbiota, fecal metabolites and autism-like behavior in an adolescent valproic acid-induced rat autism model. Behav Brain Res 2022; 417:113580. [PMID: 34555431 DOI: 10.1016/j.bbr.2021.113580] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Revised: 08/18/2021] [Accepted: 09/08/2021] [Indexed: 12/26/2022]
Abstract
This study aims to understand the relationship between fecal metabolites and gut microbiota in an adolescent valproic acid-induced rat autism model (VPA-exposed offspring). We analyzed the fecal samples of VPA-exposed offspring using 16S rRNA gene sequencing and untargeted metabolomics. Autism-like behavior was evaluated by a three-chamber sociability test and a self-grooming test. Based on these data, we analyzed the association among fecal metabolites, gut microbiota and autism-like behavior. Behavioral tests showed that VPA-exposed offspring displayed typical autism-like behavior. Forty-nine named differential fecal metabolites and 14 enriched KEGG pathways were identified between the VPA and control groups. Five fecal metabolites may be used as characteristic metabolites. The richness and diversity of gut microbiota did not differ between the two groups, while the overall composition of gut microbiota was significantly different. Candidatus_Saccharimonas, Desulfovibrio, [Eubacterium]_xylanophilum_group and Ruminococcus_2 were the characteristic genera of VPA-exposed offspring. Correlation analysis revealed a tight relationship among gut microbiota, fecal metabolites and autistic behavior in VPA-exposed offspring. This study illustrates that specific alterations in gut microbiota and fecal metabolites may be regarded as characteristics of VPA-exposed offspring. The characteristic gut microbiota and fecal metabolites as well as their relationship may play a crucial role in autism-like behavior caused by prenatal exposure to VPA.
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Affiliation(s)
- Youyu Gu
- Department of Pediatrics, Peking University People's Hospital, Beijing 100044, China
| | - Ying Han
- Department of Pediatrics, Peking University First Hospital, Beijing 100034, China.
| | - Shimeng Ren
- Department of Pediatrics, Peking University People's Hospital, Beijing 100044, China
| | - Bi Zhang
- Department of Pediatrics, Peking University People's Hospital, Beijing 100044, China
| | - Yihan Zhao
- Department of Pediatrics, Peking University First Hospital, Beijing 100034, China
| | - Xiaoxi Wang
- Neuroscience Research Institute, Peking University, Beijing 100191, China
| | - Shaobin Zhang
- Beijing Gutgene Technology Co. Ltd, Beijing 100085, China
| | - Jiong Qin
- Department of Pediatrics, Peking University People's Hospital, Beijing 100044, China.
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29
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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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30
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Zheng Y, Bek MK, Prince NZ, Peralta Marzal LN, Garssen J, Perez Pardo P, Kraneveld AD. The Role of Bacterial-Derived Aromatic Amino Acids Metabolites Relevant in Autism Spectrum Disorders: A Comprehensive Review. Front Neurosci 2021; 15:738220. [PMID: 34744609 PMCID: PMC8568365 DOI: 10.3389/fnins.2021.738220] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2021] [Accepted: 09/30/2021] [Indexed: 12/27/2022] Open
Abstract
In recent years, the idea of the gut microbiota being involved in the pathogenesis of autism spectrum disorders (ASD) has attracted attention through numerous studies. Many of these studies report microbial dysregulation in the gut and feces of autistic patients and in ASD animal models. The host microbiota plays a large role in metabolism of ingested foods, and through the production of a range of metabolites it may be involved in neurodevelopmental disorders such as ASD. Two specific microbiota-derived host metabolites, p-cresol sulfate and 4-ethylphenyl sulfate, have been associated with ASD in both patients and animal models. These metabolites originate from bacterially produced p-cresol and 4-ethylphenol, respectively. p-Cresol and 4-ethylphenol are produced through aromatic amino acid fermentation by a range of commensal bacteria, most notably bacteria from the Clostridioides genus, which are among the dysregulated bacteria frequently detected in ASD patients. Once produced, these metabolites are suggested to enter the bloodstream, pass the blood–brain-barrier and affect microglial cells in the central nervous system, possibly affecting processes like neuroinflammation and microglial phagocytosis. This review describes the current knowledge of microbial dysbiosis in ASD and elaborates on the relevance and synthesis pathways of two specific ASD-associated metabolites that may form a link between the microbiota and the brain in autism. While the two discussed metabolites are promising candidates for biomarkers and (nutritional) intervention targets, more research into the role of these metabolites in ASD is required to causally connect these metabolites to ASD pathophysiology.
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Affiliation(s)
- Yuanpeng Zheng
- Division of Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Faculty of Science, Utrecht University, Utrecht, Netherlands
| | - Marie K Bek
- Division of Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Faculty of Science, Utrecht University, Utrecht, Netherlands
| | - Naika Z Prince
- Division of Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Faculty of Science, Utrecht University, Utrecht, Netherlands
| | - Lucia N Peralta Marzal
- Division of Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Faculty of Science, Utrecht University, Utrecht, Netherlands
| | - Johan Garssen
- Division of Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Faculty of Science, Utrecht University, Utrecht, Netherlands.,Global Centre of Excellence Immunology, Danone Nutricia Research, Utrecht, Netherlands
| | - Paula Perez Pardo
- Division of Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Faculty of Science, Utrecht University, Utrecht, Netherlands
| | - Aletta D Kraneveld
- Division of Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Faculty of Science, Utrecht University, Utrecht, Netherlands
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31
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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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32
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The Role of Gut Microbiota and Gut-Brain Interplay in Selected Diseases of the Central Nervous System. Int J Mol Sci 2021; 22:ijms221810028. [PMID: 34576191 PMCID: PMC8471822 DOI: 10.3390/ijms221810028] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2021] [Revised: 09/14/2021] [Accepted: 09/15/2021] [Indexed: 02/06/2023] Open
Abstract
The gut microbiome has attracted increasing attention from researchers in recent years. The microbiota can have a specific and complex cross-talk with the host, particularly with the central nervous system (CNS), creating the so-called “gut–brain axis”. Communication between the gut, intestinal microbiota, and the brain involves the secretion of various metabolites such as short-chain fatty acids (SCFAs), structural components of bacteria, and signaling molecules. Moreover, an imbalance in the gut microbiota composition modulates the immune system and function of tissue barriers such as the blood–brain barrier (BBB). Therefore, the aim of this literature review is to describe how the gut–brain interplay may contribute to the development of various neurological disorders, combining the fields of gastroenterology and neuroscience. We present recent findings concerning the effect of the altered microbiota on neurodegeneration and neuroinflammation, including Alzheimer’s and Parkinson’s diseases, as well as multiple sclerosis. Moreover, the impact of the pathological shift in the microbiome on selected neuropsychological disorders, i.e., major depressive disorders (MDD) and autism spectrum disorder (ASD), is also discussed. Future research on the effect of balanced gut microbiota composition on the gut–brain axis would help to identify new potential opportunities for therapeutic interventions in the presented diseases.
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33
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Kaźmierczak-Siedlecka K, Skonieczna-Żydecka K, Biliński J, Roviello G, Iannone LF, Atzeni A, Sobocki BK, Połom K. Gut Microbiome Modulation and Faecal Microbiota Transplantation Following Allogenic Hematopoietic Stem Cell Transplantation. Cancers (Basel) 2021; 13:cancers13184665. [PMID: 34572894 PMCID: PMC8464896 DOI: 10.3390/cancers13184665] [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: 07/31/2021] [Revised: 09/07/2021] [Accepted: 09/15/2021] [Indexed: 12/12/2022] Open
Abstract
Nowadays, allogenic hematopoietic stem cell transplantation (allo-HSCT) is a curative therapy that is mainly recommended for hematologic malignancies. However, complications (such as graft-versus-host disease, mucositis, disease relapse, and infections) associated with the HSCT procedure contribute to the development of gut microbiota imbalance, gut-barrier disruption, and increased intestinal permeability. In the present narrative review, the crosstalk between gut microbiota products and intestinal homeostasis is discussed. Notably, gut-microbiota-related aspects have an impact on patients' clinical outcomes and overall survival. In accordance with the most recent published data, gut microbiota is crucial for the treatment effectiveness of many diseases, not only gastrointestinal cancers but also hematologic malignancies. Therefore, it is necessary to indicate a therapeutic method allowing to modulate gut microbiota in HSCT recipients. Currently, fecal microbiota transplantation (FMT) is the most innovative method used to alter/restore gut microbiota composition, as well as modulate its activity. Despite the fact that some previous data have shown promising results, the knowledge regarding FMT in HSCT is still strongly limited, except for the treatment of Clostridium difficile infection. Additionally, administration of prebiotics, probiotics, synbiotics, and postbiotics can also modify gut microbiota; however, this strategy should be considered carefully due to the high risk of fungemia/septicemia (especially in case of fungal probiotics).
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Affiliation(s)
| | - Karolina Skonieczna-Żydecka
- Department of Biochemical Sciences, Pomeranian Medical University in Szczecin, Broniewskiego 24, 71-460 Szczecin, Poland;
| | - Jarosław Biliński
- Department of Hematology, Transplantology and Internal Medicine, Medical University of Warsaw, 02-097 Warszawa, Poland;
| | - Giandomenico Roviello
- Department of Health Sciences, Section of Clinical Pharmacology and Oncology, University of Florence, 50139 Florence, Italy;
| | - Luigi Francesco Iannone
- Department of Health Science, University “Magna Graecia” of Catanzaro, 88100 Catanzaro, Italy;
| | - Alessandro Atzeni
- Human Nutrition Unit, Department of Biochemistry and Biotechnology, Rovira i Virgili University, Faculty of Medicine and Health Sciences, Campus Vapor Vell, 43210 Reus, Spain;
| | - Bartosz Kamil Sobocki
- International Research Agenda 3P—Medicine Laboratory, Medical University of Gdansk, 80-214 Gdańsk, Poland;
| | - Karol Połom
- Department of Surgical Oncology, Medical University of Gdansk, 80-214 Gdańsk, Poland;
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34
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Influence of the Aryl Hydrocarbon Receptor Activating Environmental Pollutants on Autism Spectrum Disorder. Int J Mol Sci 2021; 22:ijms22179258. [PMID: 34502168 PMCID: PMC8431328 DOI: 10.3390/ijms22179258] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Revised: 06/22/2021] [Accepted: 06/28/2021] [Indexed: 02/07/2023] Open
Abstract
Autism spectrum disorder (ASD) is an umbrella term that includes many different disorders that affect the development, communication, and behavior of an individual. Prevalence of ASD has risen exponentially in the past couple of decades. ASD has a complex etiology and traditionally recognized risk factors only account for a small percentage of incidence of the disorder. Recent studies have examined factors beyond the conventional risk factors (e.g., environmental pollution). There has been an increase in air pollution since the beginning of industrialization. Most environmental pollutants cause toxicities through activation of several cellular receptors, such as the aryl hydrocarbon receptor (AhR)/cytochrome P450 (CYPs) pathway. There is little research on the involvement of AhR in contributing to ASD. Although a few reviews have discussed and addressed the link between increased prevalence of ASD and exposure to environmental pollutants, the mechanism governing this effect, specifically the role of AhR in ASD development and the molecular mechanisms involved, have not been discussed or reviewed before. This article reviews the state of knowledge regarding the impact of the AhR/CYP pathway modulation upon exposure to environmental pollutants on ASD risk, incidence, and development. It also explores the molecular mechanisms involved, such as epigenesis and polymorphism. In addition, the review explores possible new AhR-mediated mechanisms of several drugs used for treatment of ASD, such as sulforaphane, resveratrol, haloperidol, and metformin.
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35
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Frye RE, Cakir J, Rose S, Palmer RF, Austin C, Curtin P. Physiological mediators of prenatal environmental influences in autism spectrum disorder. Bioessays 2021; 43:e2000307. [PMID: 34260745 DOI: 10.1002/bies.202000307] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2020] [Revised: 06/24/2021] [Accepted: 06/28/2021] [Indexed: 12/27/2022]
Abstract
Recent research has pointed to the importance of the prenatal environment in the etiology of autism spectrum disorder (ASD) but the biological mechanisms which mitigate these environmental factors are not clear. Mitochondrial metabolism abnormalities, inflammation and oxidative stress as common physiological disturbances associated with ASD. Network analysis of the scientific literature identified several leading prenatal environmental factors associated with ASD, particularly air pollution, pesticides, the microbiome and epigenetics. These leading prenatal environmental factors were found to be most associated with inflammation, followed by oxidative stress and mitochondrial dysfunction. Other prenatal factors associated with ASD not identified by the network analysis were also found to be significantly associated with these common physiological disturbances. A better understanding of the biological mechanism which mediate the effect of prenatal environmental factors can lead to insights of how ASD develops and the development of targeted therapeutics to prevent ASD from occuring.
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Affiliation(s)
- Richard E Frye
- Section on Neurodevelopmental Disorders, Division of Neurology, Barrow Neurological Institute at Phoenix Children's Hospital, 1919 E Thomas Rd, Phoenix, Arizona, 85016, USA.,Department of Child Health, University of Arizona College of Medicine - Phoenix, Phoenix, AZ, 85004, USA
| | - Janet Cakir
- Department of Applied Ecology, North Carolina State University, Raleigh, North Carolina, 27695, USA
| | - Shannon Rose
- Arkansas Children's Research Institute, Little Rock, Arkansas, 72202, USA.,Department of Pediatrics, University of Arkansas for Medical Sciences, Little Rock, Arkansas, 72205, USA
| | - Raymond F Palmer
- Department of Family and Community Medicine, University of Texas Health Science Center, San Antonio, Texas, 78229, USA
| | - Christine Austin
- Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, New York, New York, 10029, USA
| | - Paul Curtin
- Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, New York, New York, 10029, USA
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36
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Evidences for a Role of Gut Microbiota in Pathogenesis and Management of Epilepsy. Int J Mol Sci 2021; 22:ijms22115576. [PMID: 34070389 PMCID: PMC8197531 DOI: 10.3390/ijms22115576] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Revised: 05/19/2021] [Accepted: 05/20/2021] [Indexed: 02/06/2023] Open
Abstract
Epilepsy as a chronic neurological disorder is characterized by recurrent, unprovoked epileptic seizures. In about half of the people who suffer from epilepsy, the root cause of the disorder is unknown. In the other cases, different factors can cause the onset of epilepsy. In recent years, the role of gut microbiota has been recognized in many neurological disorders, including epilepsy. These data are based on studies of the gut microbiota–brain axis, a relationship starting by a dysbiosis followed by an alteration of brain functions. Interestingly, epileptic patients may show signs of dysbiosis, therefore the normalization of the gut microbiota may lead to improvement of epilepsy and to greater efficacy of anticonvulsant drugs. In this descriptive review, we analyze the evidences for the role of gut microbiota in epilepsy and hypothesize a mechanism of action of these microorganisms in the pathogenesis and treatment of the disease. Human studies revealed an increased prevalence of Firmicutes in patients with refractory epilepsy. Exposure to various compounds can change microbiota composition, decreasing or exacerbating epileptic seizures. These include antibiotics, epileptic drugs, probiotics and ketogenic diet. Finally, we hypothesize that physical activity may play a role in epilepsy through the modulation of the gut microbiota.
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37
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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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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: 6] [Impact Index Per Article: 2.0] [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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Gut Microbiota and Bipolar Disorder: An Overview on a Novel Biomarker for Diagnosis and Treatment. Int J Mol Sci 2021; 22:ijms22073723. [PMID: 33918462 PMCID: PMC8038247 DOI: 10.3390/ijms22073723] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2021] [Revised: 03/30/2021] [Accepted: 03/31/2021] [Indexed: 02/07/2023] Open
Abstract
The gut microbiota is the set of microorganisms that colonize the gastrointestinal tract of living creatures, establishing a bidirectional symbiotic relationship that is essential for maintaining homeostasis, for their growth and digestive processes. Growing evidence supports its involvement in the intercommunication system between the gut and the brain, so that it is called the gut-brain-microbiota axis. It is involved in the regulation of the functions of the Central Nervous System (CNS), behavior, mood and anxiety and, therefore, its implication in the pathogenesis of neuropsychiatric disorders. In this paper, we focused on the possible correlations between the gut microbiota and Bipolar Disorder (BD), in order to determine its role in the pathogenesis and in the clinical management of BD. Current literature supports a possible relationship between the compositional alterations of the intestinal microbiota and BD. Moreover, due to its impact on psychopharmacological treatment absorption, by acting on the composition of the microbiota beneficial effects can be obtained on BD symptoms. Finally, we discussed the potential of correcting gut microbiota alteration as a novel augmentation strategy in BD. Future studies are necessary to better clarify the relevance of gut microbiota alterations as state and disease biomarkers of BD.
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Frye RE, Cakir J, Rose S, Palmer RF, Austin C, Curtin P, Arora M. Mitochondria May Mediate Prenatal Environmental Influences in Autism Spectrum Disorder. J Pers Med 2021; 11:218. [PMID: 33803789 PMCID: PMC8003154 DOI: 10.3390/jpm11030218] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2021] [Revised: 03/17/2021] [Accepted: 03/17/2021] [Indexed: 12/13/2022] Open
Abstract
We propose that the mitochondrion, an essential cellular organelle, mediates the long-term prenatal environmental effects of disease in autism spectrum disorder (ASD). Many prenatal environmental factors which increase the risk of developing ASD influence mitochondria physiology, including toxicant exposures, immune activation, and nutritional factors. Unique types of mitochondrial dysfunction have been associated with ASD and recent studies have linked prenatal environmental exposures to long-term changes in mitochondrial physiology in children with ASD. A better understanding of the role of the mitochondria in the etiology of ASD can lead to targeted therapeutics and strategies to potentially prevent the development of ASD.
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Affiliation(s)
- Richard E. Frye
- Barrow Neurological Institute at Phoenix Children’s Hospital, Phoenix, AZ 85016, USA
| | - Janet Cakir
- Department of Applied Ecology, North Carolina State University, Raleigh, NC 27695, USA;
| | - Shannon Rose
- Department of Pediatrics, Arkansas Children’s Research Institute, University of Arkansas for Medical Sciences, Little Rock, AR 72202, USA;
| | - Raymond F. Palmer
- Department of Family and Community Medicine, University of Texas Health Science Center, San Antonio, TX 78229, USA;
| | - Christine Austin
- Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA; (C.A.); (P.C.); (M.A.)
| | - Paul Curtin
- Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA; (C.A.); (P.C.); (M.A.)
| | - Manish Arora
- Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA; (C.A.); (P.C.); (M.A.)
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The Role of Gut Bacterial Metabolites in Brain Development, Aging and Disease. Nutrients 2021; 13:nu13030732. [PMID: 33669008 PMCID: PMC7996516 DOI: 10.3390/nu13030732] [Citation(s) in RCA: 78] [Impact Index Per Article: 26.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Revised: 02/15/2021] [Accepted: 02/22/2021] [Indexed: 02/07/2023] Open
Abstract
In the last decade, emerging evidence has reported correlations between the gut microbiome and human health and disease, including those affecting the brain. We performed a systematic assessment of the available literature focusing on gut bacterial metabolites and their associations with diseases of the central nervous system (CNS). The bacterial metabolites short-chain fatty acids (SCFAs) as well as non-SCFAs like amino acid metabolites (AAMs) and bacterial amyloids are described in particular. We found significantly altered SCFA levels in patients with autism spectrum disorder (ASD), affective disorders, multiple sclerosis (MS) and Parkinson’s disease (PD). Non-SCFAs yielded less significantly distinct changes in faecal levels of patients and healthy controls, with the majority of findings were derived from urinary and blood samples. Preclinical studies have implicated different bacterial metabolites with potentially beneficial as well as detrimental mechanisms in brain diseases. Examples include immunomodulation and changes in catecholamine production by histone deacetylase inhibition, anti-inflammatory effects through activity on the aryl hydrocarbon receptor and involvement in protein misfolding. Overall, our findings highlight the existence of altered bacterial metabolites in patients across various brain diseases, as well as potential neuroactive effects by which gut-derived SCFAs, p-cresol, indole derivatives and bacterial amyloids could impact disease development and progression. The findings summarized in this review could lead to further insights into the gut–brain–axis and thus into potential diagnostic, therapeutic or preventive strategies in brain diseases.
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Emerging mechanisms of valproic acid-induced neurotoxic events in autism and its implications for pharmacological treatment. Biomed Pharmacother 2021; 137:111322. [PMID: 33761592 DOI: 10.1016/j.biopha.2021.111322] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Revised: 01/15/2021] [Accepted: 01/18/2021] [Indexed: 12/16/2022] Open
Abstract
Autism spectrum disorder (ASD) is a sort of mental disorder marked by deficits in cognitive and communication abilities. To date no effective cure for this pernicious disease has been available. Valproic acid (VPA) is a broad-spectrum, antiepileptic drug, and it is also a potent teratogen. Epidemiological studies have shown that children exposed to VPA are at higher risk for ASD during the first trimester of their gestational development. Several animal and human studies have demonstrated important behavioral impairments and morphological changes in the brain following VPA treatment. However, the mechanism of VPA exposure-induced ASD remains unclear. Several factors are involved in the pathological phase of ASD, including aberrant excitation/inhibition of synaptic transmission, neuroinflammation, diminished neurogenesis, oxidative stress, etc. In this review, we aim to outline the current knowledge of the critical pathophysiological mechanisms underlying VPA exposure-induced ASD. This review will give insight toward understanding the complex nature of VPA-induced neuronal toxicity and exploring a new path toward the development of novel pharmacological treatment against ASD.
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Andrade FDO, Liu F, Zhang X, Rosim MP, Dani C, Cruz I, Wang TTY, Helferich W, Li RW, Hilakivi-Clarke L. Genistein Reduces the Risk of Local Mammary Cancer Recurrence and Ameliorates Alterations in the Gut Microbiota in the Offspring of Obese Dams. Nutrients 2021; 13:nu13010201. [PMID: 33440675 PMCID: PMC7827465 DOI: 10.3390/nu13010201] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2020] [Revised: 12/29/2020] [Accepted: 01/05/2021] [Indexed: 02/06/2023] Open
Abstract
The risk of recurrence of estrogen receptor-positive breast cancer remains constant, even 20 years after diagnosis. Recurrence may be more likely in patients pre-programmed for it already in the womb, such as in the daughters born to obese mothers. Maternal obesity persistently alters offspring’s gut microbiota and impairs tumor immune responses. To investigate if the gut dysbiosis is linked to increased risk of mammary cancer recurrence in the offspring of obese rat dams, we fed adult offspring genistein which is known to have beneficial effects on the gut bacteria. However, the effects of genistein on breast cancer remain controversial. We found that genistein intake after tamoxifen response prevented the increased risk of local recurrence in the offspring of obese dams but had no effect on the control offspring. A significant increase in the abundance of inflammatory Prevotellaceae and Enterobacteriaceae, and a reduction in short-chain fatty acid producing Clostridiaceae was observed in the offspring of obese dams. Genistein supplementation reversed these changes as well as reversed increased gut metabolite N-acetylvaline levels which are linked to increased all-cause mortality. Genistein supplementation also reduced genotoxic tyramine levels, increased metabolites improving pro-resolving phase of inflammation, and reversed the elevated tumor mRNA expression of multiple immunosuppressive genes in the offspring of obese dams. If translatable to breast cancer patients, attempts to prevent breast cancer recurrences might need to focus on dietary modifications which beneficially modify the gut microbiota.
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Affiliation(s)
- Fabia de Oliveira Andrade
- Department of Oncology, Georgetown University, Washington, DC 20057, USA; (F.d.O.A.); (X.Z.); (M.P.R.); (C.D.); (I.C.)
| | - Fang Liu
- College of Food Science and Engineering, Ocean University of China, Qingdao 266555, China;
| | - Xiyuan Zhang
- Department of Oncology, Georgetown University, Washington, DC 20057, USA; (F.d.O.A.); (X.Z.); (M.P.R.); (C.D.); (I.C.)
| | - Mariana Papaleo Rosim
- Department of Oncology, Georgetown University, Washington, DC 20057, USA; (F.d.O.A.); (X.Z.); (M.P.R.); (C.D.); (I.C.)
| | - Caroline Dani
- Department of Oncology, Georgetown University, Washington, DC 20057, USA; (F.d.O.A.); (X.Z.); (M.P.R.); (C.D.); (I.C.)
| | - Idalia Cruz
- Department of Oncology, Georgetown University, Washington, DC 20057, USA; (F.d.O.A.); (X.Z.); (M.P.R.); (C.D.); (I.C.)
| | - Thomas T. Y. Wang
- United States Department of Agriculture, Beltsville Human Nutrition Center, Diet, Genomics and Immunology Laboratory, Beltsville, MD 20705, USA;
| | - William Helferich
- Department of Food Science and Human Nutrition, University of Illinois Urbana-Champaign, Urbana, IL 1801, USA;
| | - Robert W. Li
- United States Department of Agriculture, Agricultural Research Service, Animal Genomics and Improvement Laboratory, Beltsville, MD 20705, USA;
| | - Leena Hilakivi-Clarke
- Department of Oncology, Georgetown University, Washington, DC 20057, USA; (F.d.O.A.); (X.Z.); (M.P.R.); (C.D.); (I.C.)
- Correspondence:
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Gong W, Qiao Y, Li B, Zheng X, Xu R, Wang M, Mi X, Li Y. The Alteration of Salivary Immunoglobulin A in Autism Spectrum Disorders. Front Psychiatry 2021; 12:669193. [PMID: 34093280 PMCID: PMC8175640 DOI: 10.3389/fpsyt.2021.669193] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/18/2021] [Accepted: 04/26/2021] [Indexed: 12/15/2022] Open
Abstract
Objectives: Autism spectrum disorders (ASD) are neurodevelopmental disorders with changes in the gut and oral microbiota. Based on the intimate relationship between the oral microbiota and oral mucosal immunity, this study aimed to investigate changes in salivary immunoglobulin A (IgA) level in ASD and the underlying mechanism for any such changes. Methods: We recruited 36 children diagnosed with ASD and 35 normally developing children and measured their salivary IgA content using enzyme-linked immunosorbent assay (ELISA). The valproate (VPA) -treated ASD mouse model was established by prenatal exposure to valproate and mouse salivary IgA content was also quantified by ELISA. The submandibular glands of VPA and control mice were isolated and analyzed using qRT-PCR, immunofluorescence staining, and flow cytometry. ASD-related Streptococci were co-incubated with the human salivary gland (HSG) cell line, and western blotting was used to detect the levels of relevant proteins. Results: We found that salivary IgA content was significantly decreased in patients with ASD and had a significant ASD diagnostic value. The salivary IgA content also decreased in VPA mice and was significantly correlated with autistic-like behaviors among them. The mRNA and protein levels of the polymeric immunoglobulin receptor (Pigr) were downregulated in the submandibular glands of VPA mice and the Pigr mRNA level was positively correlated with mouse salivary IgA content. HSG cells treated with ASD-related Streptococci had reduced PIGR protein level. Conclusion: Therefore, protective IgA levels were reduced in the saliva of individuals with ASD, which correlated with the bacteria-induced downregulation of Pigr in salivary glands. This study suggests a new direction for ASD diagnosis and prevention of oral diseases in ASD cohorts and provides evidence for the ASD mucosal immunophenotype in the oral cavity.
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Affiliation(s)
- Wuyi Gong
- Department of Orthodontics, Shanghai Engineering Research Center of Tooth Restoration and Regeneration, School and Hospital of Stomatology, Tongji University, Shanghai, China
| | - Yanan Qiao
- Department of Orthodontics, Shanghai Engineering Research Center of Tooth Restoration and Regeneration, School and Hospital of Stomatology, Tongji University, Shanghai, China
| | - Bosheng Li
- Department of Orthodontics, Shanghai Engineering Research Center of Tooth Restoration and Regeneration, School and Hospital of Stomatology, Tongji University, Shanghai, China
| | - Xiaoguo Zheng
- Shanghai Key Laboratory of Embryo Original Disease, School of Medicine, International Peace Maternity and Child Health Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Ruihuan Xu
- Clinic Lab, Longgang District People's Hospital of Shenzhen, Shenzhen, China
| | - Mingbang Wang
- Shanghai Key Laboratory of Birth Defects, Division of Neonatology, National Center for Children's Health, Xiamen Branch of Children's Hospital of Fudan University (Xiamen Children's Hospital), Children's Hospital of Fudan University, Shanghai, China
| | - Xiaohui Mi
- Department of Orthodontics, Shanghai Engineering Research Center of Tooth Restoration and Regeneration, School and Hospital of Stomatology, Tongji University, Shanghai, China
| | - Yongming Li
- Department of Orthodontics, Shanghai Engineering Research Center of Tooth Restoration and Regeneration, School and Hospital of Stomatology, Tongji University, Shanghai, China
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Flowers SA, Ward KM, Clark CT. The Gut Microbiome in Bipolar Disorder and Pharmacotherapy Management. Neuropsychobiology 2020; 79:43-49. [PMID: 31722343 DOI: 10.1159/000504496] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/12/2018] [Accepted: 10/31/2019] [Indexed: 11/19/2022]
Abstract
The gut microbiome is a complex and dynamic community of commensal, symbiotic, and pathogenic microorganisms that exist in a bidirectional relationship with the host. Bacterial functions in the gut play a critical role in healthy host functioning, and its disruption can contribute to many medical conditions. The relationship between gut microbiota and the brain has gained attention in mental health due to the mounting evidence supporting the association of gut bacteria with mood and behavior. Patients with bipolar disorder exhibit an increased frequency of gastrointestinal illnesses such as inflammatory bowel disease, which mechanistically has been linked to microbial community function. While the heterogeneity in microbial communities between individuals might be associated with disease risk, it may also moderate the efficacy or adverse effects associated with the use of medication. The following review highlights published evidence linking the function of gut microbiota both to bipolar disorder risk and to the effect of medications that influence microbiota, inflammation, and mood symptoms.
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Affiliation(s)
- Stephanie A Flowers
- Department of Pharmacy Practice, University of Illinois at Chicago, Chicago, Illinois, USA,
| | - Kristen M Ward
- Department of Clinical Pharmacy, University of Michigan, Ann Arbor, Michigan, USA
| | - Crystal T Clark
- Department of Psychiatry, Northwestern University, Asher Center for the Study and Treatment of Depressive Disorders, Chicago, Illinois, USA
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Rea V, Van Raay TJ. Using Zebrafish to Model Autism Spectrum Disorder: A Comparison of ASD Risk Genes Between Zebrafish and Their Mammalian Counterparts. Front Mol Neurosci 2020; 13:575575. [PMID: 33262688 PMCID: PMC7686559 DOI: 10.3389/fnmol.2020.575575] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2020] [Accepted: 10/08/2020] [Indexed: 12/23/2022] Open
Abstract
Autism spectrum disorders (ASDs) are a highly variable and complex set of neurological disorders that alter neurodevelopment and cognitive function, which usually presents with social and learning impairments accompanied with other comorbid symptoms like hypersensitivity or hyposensitivity, or repetitive behaviors. Autism can be caused by genetic and/or environmental factors and unraveling the etiology of ASD has proven challenging, especially given that different genetic mutations can cause both similar and different phenotypes that all fall within the autism spectrum. Furthermore, the list of ASD risk genes is ever increasing making it difficult to synthesize a common theme. The use of rodent models to enhance ASD research is invaluable and is beginning to unravel the underlying molecular mechanisms of this disease. Recently, zebrafish have been recognized as a useful model of neurodevelopmental disorders with regards to genetics, pharmacology and behavior and one of the main foundations supporting autism research (SFARI) recently identified 12 ASD risk genes with validated zebrafish mutant models. Here, we describe what is known about those 12 ASD risk genes in human, mice and zebrafish to better facilitate this research. We also describe several non-genetic models including pharmacological and gnotobiotic models that are used in zebrafish to study ASD.
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Affiliation(s)
| | - Terence J. Van Raay
- Dept of Molecular and Cellular Biology, University of Guelph, Guelph, ON, Canada
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Čoklo M, Maslov DR, Kraljević Pavelić S. Modulation of gut microbiota in healthy rats after exposure to nutritional supplements. Gut Microbes 2020; 12:1-28. [PMID: 32845788 PMCID: PMC7524141 DOI: 10.1080/19490976.2020.1779002] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [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
INTRODUCTION Rats are experimental animals, frequently used as model organisms in the biomedical studies, and increasingly used to study the gut microbiota. Specifically, the aim of latter studies is either the elucidation of relationship between intestinal dysbiosis and diseases or the determination of nutrients or pharmaceutical agents which can cause the modulation in the presence or abundance of gut microbiota. AIM Herein, the research studies conducted on the gut microbiota of healthy rats are presented in a summarized and concise overview. The focus is on studies aimed to reveal the shifts in microbial composition and functional changes after exposure to various types of nutritional supplements. METHODS We performed the search of PubMed database using the term "rat gut microbiome microbiota" and examined studies aimed to assess the composition of gut microbiota in physiological homeostasis as well as the effect of various nutritional supplements on the gut microbiota of healthy rats.
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Affiliation(s)
- Mirna Čoklo
- Department of Biotechnology, Centre for High-throughput Technologies, University of Rijeka, Rijeka, Croatia
| | - Dina Rešetar Maslov
- Department of Biotechnology, Centre for High-throughput Technologies, University of Rijeka, Rijeka, Croatia
| | - Sandra Kraljević Pavelić
- Department of Biotechnology, Centre for High-throughput Technologies, University of Rijeka, Rijeka, Croatia,CONTACT Sandra Kraljević Pavelić University of Rijeka, trg braće Mažuranića 10, Rijeka 51000 and University of Rijeka Faculty of Health Studies, Viktora Cara Emina 5, 51000Rijeka, Croatia
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48
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Garcia-Gutierrez E, Narbad A, Rodríguez JM. Autism Spectrum Disorder Associated With Gut Microbiota at Immune, Metabolomic, and Neuroactive Level. Front Neurosci 2020; 14:578666. [PMID: 33117122 PMCID: PMC7578228 DOI: 10.3389/fnins.2020.578666] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Accepted: 09/16/2020] [Indexed: 12/21/2022] Open
Abstract
There is increasing evidence suggesting a link between the autism spectrum disorder (ASD) and the gastrointestinal (GI) microbiome. Experimental and clinical studies have shown that patients diagnosed with ASD display alterations of the gut microbiota. These alterations do not only extend to the gut microbiota composition but also to the metabolites they produce, as a result of its connections with diet and the bidirectional interaction with the host. Thus, production of metabolites and neurotransmitters stimulate the immune system and influence the central nervous system (CNS) by stimulation of the vagal nerve, as an example of the gut-brain axis pathway. In this review we compose an overview of the interconnectivity of the different GI-related elements that have been associated with the development and severity of the ASD in patients and animal models. We review potential biomarkers to be used in future studies to unlock further connections and interventions in the treatment of ASD.
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Affiliation(s)
- Enriqueta Garcia-Gutierrez
- Gut Microbes and Health Institute Strategic Program, Quadram Institute Bioscience, Norwich, United Kingdom
| | - Arjan Narbad
- Gut Microbes and Health Institute Strategic Program, Quadram Institute Bioscience, Norwich, United Kingdom
| | - Juan Miguel Rodríguez
- Department of Nutrition and Food Science, Complutense University of Madrid, Madrid, Spain
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49
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Kaur H, Singh Y, Singh S, Singh RB. Gut microbiome-mediated epigenetic regulation of brain disorder and application of machine learning for multi-omics data analysis. Genome 2020; 64:355-371. [PMID: 33031715 DOI: 10.1139/gen-2020-0136] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
The gut-brain axis (GBA) is a biochemical link that connects the central nervous system (CNS) and enteric nervous system (ENS). Clinical and experimental evidence suggests gut microbiota as a key regulator of the GBA. Microbes living in the gut not only interact locally with intestinal cells and the ENS but have also been found to modulate the CNS through neuroendocrine and metabolic pathways. Studies have also explored the involvement of gut microbiota dysbiosis in depression, anxiety, autism, stroke, and pathophysiology of other neurodegenerative diseases. Recent reports suggest that microbe-derived metabolites can influence host metabolism by acting as epigenetic regulators. Butyrate, an intestinal bacterial metabolite, is a known histone deacetylase inhibitor that has shown to improve learning and memory in animal models. Due to high disease variability amongst the population, a multi-omics approach that utilizes artificial intelligence and machine learning to analyze and integrate omics data is necessary to better understand the role of the GBA in pathogenesis of neurological disorders, to generate predictive models, and to develop precise and personalized therapeutics. This review examines our current understanding of epigenetic regulation of the GBA and proposes a framework to integrate multi-omics data for prediction, prevention, and development of precision health approaches to treat brain disorders.
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Affiliation(s)
- Harpreet Kaur
- Department of Biomedical Sciences, School of Medicine and Health Sciences, University of North Dakota, Grand Forks, ND, USA
| | - Yuvraj Singh
- Department of Biological Sciences, Faculty of Science, University of Calgary, Calgary, AB, Canada
| | - Surjeet Singh
- Department of Neuroscience, Canadian Centre for Behavioural Neuroscience, University of Lethbridge, Lethbridge, AB, Canada
| | - Raja B Singh
- Faculty of Medicine & Dentistry, University of Alberta, Edmonton, AB, Canada.,Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
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50
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Roussin L, Prince N, Perez-Pardo P, Kraneveld AD, Rabot S, Naudon L. Role of the Gut Microbiota in the Pathophysiology of Autism Spectrum Disorder: Clinical and Preclinical Evidence. Microorganisms 2020; 8:microorganisms8091369. [PMID: 32906656 PMCID: PMC7563175 DOI: 10.3390/microorganisms8091369] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2020] [Revised: 08/31/2020] [Accepted: 09/03/2020] [Indexed: 02/06/2023] Open
Abstract
Autism spectrum disorder (ASD) is a neurodevelopmental disorder affecting 1 in 160 people in the world. Although there is a strong genetic heritability to ASD, it is now accepted that environmental factors can play a role in its onset. As the prevalence of gastrointestinal (GI) symptoms is four-times higher in ASD patients, the potential implication of the gut microbiota in this disorder is being increasingly studied. A disturbed microbiota composition has been demonstrated in ASD patients, accompanied by altered production of bacterial metabolites. Clinical studies as well as preclinical studies conducted in rodents have started to investigate the physiological functions that gut microbiota might disturb and thus underlie the pathophysiology of ASD. The first data support an involvement of the immune system and tryptophan metabolism, both in the gut and central nervous system. In addition, a few clinical studies and a larger number of preclinical studies found that modulation of the microbiota through antibiotic and probiotic treatments, or fecal microbiota transplantation, could improve behavior. Although the understanding of the role of the gut microbiota in the physiopathology of ASD is only in its early stages, the data gathered in this review highlight that this role should be taken in consideration.
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Affiliation(s)
- Léa Roussin
- Université Paris-Saclay, INRAE, AgroParisTech, Micalis Institute, 78350 Jouy-en-Josas, France;
- Correspondence:
| | - Naika Prince
- Division of Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Faculty of Science, Utrecht University, Universiteitsweg 99, 3584 CG Utrecht, The Netherlands; (N.P.); (P.P.-P.); (A.D.K.)
| | - Paula Perez-Pardo
- Division of Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Faculty of Science, Utrecht University, Universiteitsweg 99, 3584 CG Utrecht, The Netherlands; (N.P.); (P.P.-P.); (A.D.K.)
| | - Aletta D. Kraneveld
- Division of Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Faculty of Science, Utrecht University, Universiteitsweg 99, 3584 CG Utrecht, The Netherlands; (N.P.); (P.P.-P.); (A.D.K.)
| | - Sylvie Rabot
- Université Paris-Saclay, INRAE, AgroParisTech, Micalis Institute, 78350 Jouy-en-Josas, France;
| | - Laurent Naudon
- Université Paris-Saclay, INRAE, AgroParisTech, CNRS, Micalis Institute, 78350 Jouy-en-Josas, France;
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