301
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Winter G, Hart RA, Charlesworth RP, Sharpley CF. Gut microbiome and depression: what we know and what we need to know. Rev Neurosci 2018; 29:629-643. [DOI: 10.1515/revneuro-2017-0072] [Citation(s) in RCA: 148] [Impact Index Per Article: 24.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2017] [Accepted: 12/08/2017] [Indexed: 02/07/2023]
Abstract
Abstract
Gut microbiome diversity has been strongly associated with mood-relating behaviours, including major depressive disorder (MDD). This association stems from the recently characterised bi-directional communication system between the gut and the brain, mediated by neuroimmune, neuroendocrine and sensory neural pathways. While the link between gut microbiome and depression is well supported by research, a major question needing to be addressed is the causality in the connection between the two, which will support the understanding of the role that the gut microbiota play in depression. In this article, we address this question by examining a theoretical ‘chronology’, reviewing the evidence supporting two possible sequences of events. First, we discuss that alterations in the gut microbiota populations of specific species might contribute to depression, and secondly, that depressive states might induce modification of specific gut microbiota species and eventually contribute to more severe depression. The feasibility of both sequences is supported by pre-clinical trials. For instance, research in rodents has shown an onset of depressive behaviour following faecal transplantations from patients with MDD. On the other hand, mental induction of stress and depressive behaviour in rodents resulted in reduced gut microbiota richness and diversity. Synthesis of these chronology dynamics raises important research directions to further understand the role that gut microbiota play in mood-relating behaviours, which holds substantial potential clinical outcomes for persons who experience MDD or related depressive disorders.
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302
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Eshraghi RS, Deth RC, Mittal R, Aranke M, Kay SIS, Moshiree B, Eshraghi AA. Early Disruption of the Microbiome Leading to Decreased Antioxidant Capacity and Epigenetic Changes: Implications for the Rise in Autism. Front Cell Neurosci 2018; 12:256. [PMID: 30158857 PMCID: PMC6104136 DOI: 10.3389/fncel.2018.00256] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2018] [Accepted: 07/27/2018] [Indexed: 12/20/2022] Open
Abstract
Currently, 1 out of every 59 children in the United States is diagnosed with autism. While initial research to find the possible causes for autism were mostly focused on the genome, more recent studies indicate a significant role for epigenetic regulation of gene expression and the microbiome. In this review article, we examine the connections between early disruption of the developing microbiome and gastrointestinal tract function, with particular regard to susceptibility to autism. The biological mechanisms that accompany individuals with autism are reviewed in this manuscript including immune system dysregulation, inflammation, oxidative stress, metabolic and methylation abnormalities as well as gastrointestinal distress. We propose that these autism-associated biological mechanisms may be caused and/or sustained by dysbiosis, an alteration to the composition of resident commensal communities relative to the community found in healthy individuals and its redox and epigenetic consequences, changes that in part can be due to early use and over-use of antibiotics across generations. Further studies are warranted to clarify the contribution of oxidative stress and gut microbiome in the pathophysiology of autism. A better understanding of the microbiome and gastrointestinal tract in relation to autism will provide promising new opportunities to develop novel treatment modalities.
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Affiliation(s)
- Rebecca S. Eshraghi
- Division of Gastroenterology, Department of Medicine, Miller School of Medicine, University of Miami, Miami, FL, United States
| | - Richard C. Deth
- Department of Pharmaceutical Sciences, College of Pharmacy, Nova Southeastern University, Fort Lauderdale, FL, United States
| | - Rahul Mittal
- Department of Otolaryngology, Miller School of Medicine, University of Miami, Miami, FL, United States
| | - Mayank Aranke
- Department of Otolaryngology, Miller School of Medicine, University of Miami, Miami, FL, United States
| | - Sae-In S. Kay
- Dr. Kiran C. Patel College of Osteopathic Medicine, Nova Southeastern University, Fort Lauderdale, FL, United States
| | - Baharak Moshiree
- Division of Gastroenterology, Department of Medicine, Miller School of Medicine, University of Miami, Miami, FL, United States
| | - Adrien A. Eshraghi
- Department of Otolaryngology, Miller School of Medicine, University of Miami, Miami, FL, United States
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303
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A Fluorescent Biosensors for Detection Vital Body Fluids' Agents. SENSORS 2018; 18:s18082357. [PMID: 30042294 PMCID: PMC6111579 DOI: 10.3390/s18082357] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/08/2018] [Revised: 07/13/2018] [Accepted: 07/20/2018] [Indexed: 12/18/2022]
Abstract
The clinical applications of sensing tools (i.e., biosensors) for the monitoring of physiologically important analytes are very common. Nowadays, the biosensors are being increasingly used to detect physiologically important analytes in real biological samples (i.e., blood, plasma, urine, and saliva). This review focuses on biosensors that can be applied to continuous, time-resolved measurements with fluorescence. The material presents the fluorescent biosensors for the detection of neurotransmitters, hormones, and other human metabolites as glucose, lactate or uric acid. The construction of microfluidic devices based on fluorescence uses a variety of materials, fluorescent dyes, types of detectors, excitation sources, optical filters, and geometrical systems. Due to their small size, these devices can perform a full analysis. Microfluidics-based technologies have shown promising applications in several of the main laboratory techniques, including blood chemistries, immunoassays, nucleic-acid amplification tests. Of the all technologies that are used to manufacture microfluidic systems, the LTCC technique seems to be an interesting alternative. It allows easy integration of electronic and microfluidic components on a single ceramic substrate. Moreover, the LTCC material is biologically and chemically inert, and is resistant to high temperature and pressure. The combination of all these features makes the LTCC technology particularly useful for implementation of fluorescence-based detection in the ceramic microfluidic systems.
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304
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Murphy JR, Paul S, Dunlop AL, Corwin EJ. Maternal peripartum antibiotic exposure and the risk of postpartum depression. Res Nurs Health 2018; 41:369-377. [PMID: 30024041 DOI: 10.1002/nur.21881] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2017] [Accepted: 04/27/2018] [Indexed: 12/12/2022]
Abstract
Postpartum depression is a relatively common occurrence that may carry lifelong consequences. Also common is the exposure of pregnant and postpartum women in the United States to antibiotics, especially during the peripartum period. Antibiotic exposure is known to alter gut microbial composition and structure, contributing to a dysbiotic, or imbalanced gut microbiome, and is a mechanism suggested for the increased risk of depressive symptoms following antibiotic exposure in non-pregnant, non-postpartum populations. We sought to determine the relationship between antibiotic exposure intrapartum through the first 14 days postpartum and depressive symptoms within the first 6-months postpartum. In this secondary data analysis, 124 pregnant women from a prospective cohort were enrolled into the study and provided demographic characteristics and health history. Participants completed questionnaires including the Edinburgh Postnatal Depression Scale between 32-36 weeks, and 1- and 2-weeks and 1-, 2-, 3-, and 6-months postpartum. Clinical measures including hours in labor, perineal injury, and mode of giving birth were ascertained by medical record abstraction. Antibiotic exposure was identified by self-report at 1- and 2-weeks postpartum. Antibiotic exposure was found to be independently predictive of postpartum depressive symptoms at 1-month (Beta = 0.43; CI [0.01, 0.86]) and 2-months (Beta = 0.51; CI [0.08, 0.94]) postpartum after controlling for baseline predictors. The relationship between antibiotic exposure and postpartum depressive symptoms did not maintain significance at 3- or 6-months postpartum. Additional studies are needed to further investigate the relationship between onset and duration of antibiotic exposure, the peripartum gut microbiome, and the risk for postpartum depressive symptoms.
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Affiliation(s)
- Jordan R Murphy
- Nell Hodgson Woodruff School of Nursing, Emory University, Atlanta, Georgia
| | - Sudeshna Paul
- Nell Hodgson Woodruff School of Nursing, Emory University, Atlanta, Georgia
| | - Anne L Dunlop
- Nell Hodgson Woodruff School of Nursing, Emory University, Atlanta, Georgia
| | - Elizabeth J Corwin
- Nell Hodgson Woodruff School of Nursing, Emory University, Atlanta, Georgia
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305
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Hillemacher T, Bachmann O, Kahl KG, Frieling H. Alcohol, microbiome, and their effect on psychiatric disorders. Prog Neuropsychopharmacol Biol Psychiatry 2018; 85:105-115. [PMID: 29705711 DOI: 10.1016/j.pnpbp.2018.04.015] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/12/2017] [Revised: 04/05/2018] [Accepted: 04/25/2018] [Indexed: 12/12/2022]
Abstract
There is accumulating evidence that alcohol consumption and especially alcohol withdrawal increase brain levels of known innate immune signaling molecules and cause neuroinflammation. It has been shown that microbiota play a pivotal role in this process and affect central neurochemistry and behavior. Disruption of or alterations in the intimate cross-talk between microbiome and brain may be a significant factor in many psychiatric disorders. Alterations in the composition of the microbiome, so called dysbiosis, may result in detrimental distortion of microbe-host homeostasis modulating the hypothalamic-pituitary-adrenal axis. A variety of pathologies are associated with changes in the community structure and function of the gut microbiota, suggesting a link between dysbiosis and disease etiology, including irritable bowel syndrome depression, anxiety disorders, schizophrenia, and alcoholism. Despite a paucity of clinical studies in alcohol-dependent humans, emerging data suggests that alcohol induced alterations of the microbiome may explain reward-seeking behaviors as well as anxiety, depression, and craving in withdrawal and increase the risk of developing psychiatric disorders.
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Affiliation(s)
- Thomas Hillemacher
- Department of Psychiatry and Psychotherapy, Paracelsus Medical University Nuremberg, Germany; Department of Psychiatry, Social Psychiatry, and Psychotherapy, Hannover Medical School (MHH), Germany
| | - Oliver Bachmann
- Department of Gastroenterology, Hepatology, and Endocrinology, Hannover Medical School (MHH), Germany; German Center for Infection Research (DZIF), partner site Hannover-Braunschweig, Germany
| | - Kai G Kahl
- Department of Psychiatry, Social Psychiatry, and Psychotherapy, Hannover Medical School (MHH), Germany
| | - Helge Frieling
- Department of Psychiatry, Social Psychiatry, and Psychotherapy, Hannover Medical School (MHH), Germany.
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306
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Chemotaxis of Escherichia coli to major hormones and polyamines present in human gut. ISME JOURNAL 2018; 12:2736-2747. [PMID: 29995838 PMCID: PMC6194112 DOI: 10.1038/s41396-018-0227-5] [Citation(s) in RCA: 60] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/09/2018] [Revised: 05/21/2018] [Accepted: 06/15/2018] [Indexed: 12/11/2022]
Abstract
The microorganisms in the gastrointestinal (GI) tract can influence the metabolism, immunity, and behavior of animal hosts. Increasing evidence suggests that communication between the host and the microbiome also occurs in the opposite direction, with hormones and other host-secreted compounds being sensed by microorganisms. Here, we addressed one key aspect of the host–microbe communication by studying chemotaxis of a model commensal bacterium, Escherichia coli, to several compounds present abundantly in the GI tract, namely catecholamines, thyroid hormones, and polyamines. Our results show that E. coli reacts to five out of ten analyzed chemicals, sensing melatonin, and spermidine as chemorepellents and showing mixed responses to dopamine, norepinephrine and 3,4-dihydroxymandelic acid. The strongest repellent response was observed for the polyamine spermidine, and we demonstrate that this response involves the low-abundance chemoreceptor Trg and the periplasmic binding protein PotD of the spermidine uptake system. The chemotactic effects of the tested compounds apparently correlate with their influence on growth and their stability in the GI tract, pointing to the specificity of the observed behavior. We hypothesize that the repellent responses observed at high concentrations of chemoeffective compounds might enable bacteria to avoid harmful levels of hormones and polyamines in the gut and, more generally, antimicrobial activities of the mucous layer.
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307
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Vogel KR, Ainslie GR, Walters DC, McConnell A, Dhamne SC, Rotenberg A, Roullet JB, Gibson KM. Succinic semialdehyde dehydrogenase deficiency, a disorder of GABA metabolism: an update on pharmacological and enzyme-replacement therapeutic strategies. J Inherit Metab Dis 2018; 41:699-708. [PMID: 29460030 PMCID: PMC6041169 DOI: 10.1007/s10545-018-0153-8] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/29/2017] [Revised: 01/29/2018] [Accepted: 01/31/2018] [Indexed: 12/16/2022]
Abstract
We present an update to the status of research on succinic semialdehyde dehydrogenase (SSADH) deficiency (SSADHD), a rare disorder of GABA metabolism. This is an unusual disorder featuring the accumulation of both GABA and its neuromodulatory analog, gamma-hydroxybutyric acid (GHB), and recent studies have advanced the potential clinical application of NCS-382, a putative GHB receptor antagonist. Animal studies have provided proof-of-concept that enzyme replacement therapy could represent a long-term therapeutic option. The characterization of neuronal stem cells (NSCs) derived from aldehyde dehydrogenase 5a1-/- (aldh5a1-/-) mice, the murine model of SSADHD, has highlighted NSC utility as an in vitro system in which to study therapeutics and associated toxicological properties. Gene expression analyses have revealed that transcripts encoding GABAA receptors are down-regulated and may remain largely immature in aldh5a1-/- brain, characterized by excitatory as opposed to inhibitory outputs, the latter being the expected action in the mature central nervous system. This indicates that agents altering chloride channel activity may be therapeutically relevant in SSADHD. The most recent therapeutic prospects include mTOR (mechanistic target of rapamycin) inhibitors, drugs that have received attention with the elucidation of the effects of elevated GABA on autophagy. The outlook for novel therapeutic trials in SSADHD continues to improve.
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Affiliation(s)
- Kara R Vogel
- Department of Neuroscience, University of Wisconsin, Madison, WI, USA
| | | | - Dana C Walters
- Department of Pharmacotherapy, College of Pharmacy, Washington State University, 412 E. Spokane Falls Blvd, Health Sciences Building Room 210, Spokane, WA, 99204, USA
| | | | - Sameer C Dhamne
- Department of Neurology, Boston Children's Hospital and Harvard Medical School, Boston, MA, USA
| | - Alexander Rotenberg
- Department of Neurology, Boston Children's Hospital and Harvard Medical School, Boston, MA, USA
| | - Jean-Baptiste Roullet
- Department of Pharmacotherapy, College of Pharmacy, Washington State University, 412 E. Spokane Falls Blvd, Health Sciences Building Room 210, Spokane, WA, 99204, USA
| | - K Michael Gibson
- Department of Pharmacotherapy, College of Pharmacy, Washington State University, 412 E. Spokane Falls Blvd, Health Sciences Building Room 210, Spokane, WA, 99204, USA.
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308
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Chen Y, Shao Q, Yuan YH, Chen NH. Prion-like propagation of α-synuclein in the gut-brain axis. Brain Res Bull 2018; 140:341-346. [PMID: 29894766 DOI: 10.1016/j.brainresbull.2018.06.002] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2018] [Revised: 06/04/2018] [Accepted: 06/05/2018] [Indexed: 01/29/2023]
Abstract
Parkinson's disease (PD) is a progressive degenerative disease of the nervous system, which is characterized by movement disorders, such as static tremor, rigidity, and bradykinesia in advanced patients. Gastrointestinal (GI) dysfunction, such as gastric dysmotility, constipation, and anorectic dysfunction, is common non-motor symptom in the early stage of PD. The progression of PD includes the degenerative loss of dopaminergic (DA) neurons and aggregation of α-synuclein in the substantia nigra (SN). Interestingly, both of them are also present in the enteric nervous system (ENS) of PD patients. In this review, we describe the relationship between non-motor symptoms particularly GI dysfunction and the pathogenesis of PD, aiming to show the powerful evidences about the prion-like propagation of α-synuclein and support the hypothesis of gut-brain axis in PD. We then summarize the mechanism of the gut-brain axis and confirm α-synuclein as a potential target for drug design or new clinical treatment.
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Affiliation(s)
- Ying Chen
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica& Neuroscience Center, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
| | - Qianhang Shao
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica& Neuroscience Center, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
| | - Yu-He Yuan
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica& Neuroscience Center, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China.
| | - Nai-Hong Chen
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica& Neuroscience Center, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China; College of Pharmacy, Hunan University of Chinese Medicine, Changsha, Hunan, 410208, China.
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309
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Stefano GB, Pilonis N, Ptacek R, Raboch J, Vnukova M, Kream RM. Gut, Microbiome, and Brain Regulatory Axis: Relevance to Neurodegenerative and Psychiatric Disorders. Cell Mol Neurobiol 2018; 38:1197-1206. [PMID: 29802603 PMCID: PMC6061125 DOI: 10.1007/s10571-018-0589-2] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2018] [Accepted: 05/07/2018] [Indexed: 12/23/2022]
Abstract
It has become apparent that the molecular and biochemical integrity of interactive families, genera, and species of human gut microflora is critically linked to maintaining complex metabolic and behavioral processes mediated by peripheral organ systems and central nervous system neuronal groupings. Relatively recent studies have established intrinsic ratios of enterotypes contained within the human microbiome across demographic subpopulations and have empirically linked significant alterations in the expression of bacterial enterotypes with the initiation and persistence of several major metabolic and psychiatric disorders. Accordingly, the goal of our review is to highlight potential thematic/functional linkages of pathophysiological alterations in gut microbiota and bidirectional gut-brain signaling pathways with special emphasis on the potential roles of gut dysbiosis on the pathophysiology of psychiatric illnesses. We provide critical discussion of putative thematic linkages of Parkinson's disease (PD) data sets to similar pathophysiological events as potential causative factors in the development and persistence of diverse psychiatric illnesses. Finally, we include a concise review of preclinical paradigms that involve immunologically-induced GI deficits and dysbiosis of maternal microflora that are functionally linked to impaired neurodevelopmental processes leading to affective behavioral syndromes in the offspring.
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Affiliation(s)
- G B Stefano
- Department of Psychiatry, First Faculty of Medicine Charles University in Prague and General University Hospital in Prague, Center for Cognitive and Molecular Neuroscience, Ke Karlovu 11, 120 00, Prague 2, Czech Republic.
| | - N Pilonis
- Warsaw Medical University, Public Central Teaching Hospital, Warsaw, Poland
| | - R Ptacek
- Department of Psychiatry, First Faculty of Medicine Charles University in Prague and General University Hospital in Prague, Center for Cognitive and Molecular Neuroscience, Ke Karlovu 11, 120 00, Prague 2, Czech Republic
| | - J Raboch
- Department of Psychiatry, First Faculty of Medicine Charles University in Prague and General University Hospital in Prague, Center for Cognitive and Molecular Neuroscience, Ke Karlovu 11, 120 00, Prague 2, Czech Republic
| | - M Vnukova
- Department of Psychiatry, First Faculty of Medicine Charles University in Prague and General University Hospital in Prague, Center for Cognitive and Molecular Neuroscience, Ke Karlovu 11, 120 00, Prague 2, Czech Republic
| | - R M Kream
- Department of Psychiatry, First Faculty of Medicine Charles University in Prague and General University Hospital in Prague, Center for Cognitive and Molecular Neuroscience, Ke Karlovu 11, 120 00, Prague 2, Czech Republic
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310
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Vožeh F. Immunity - a significant pathogenic factor as well as an integral part of the psychoneuroendocrine-immune regulations. Physiol Res 2018; 67:165-173. [PMID: 29303607 DOI: 10.33549/physiolres.933656] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
Immunity plays an important role in the reactivity of the organism and, in this context, is an essential factor in the pathogenesis of many diseases. Basically, there is no system or organ in the body, whose dysfunction is not related to immunity consequences. In addition, there are also multisystem diseases simultaneously involving multiple body systems. They are not always caused by weak immunity, but also often by modified immune reactions known as overshooting. The essence of all these diseases is a change in the reactivity of the organism where immunity plays an important role. The immunity as such is then part of the systems of neuroendocrine-immune regulation, which have common mediators and receptors. The establishment of psychoneuroimmunology, a relatively new discipline in neuroscience, contributed to a detailed understanding of these mechanisms between central and peripheral nervous system, the endocrine system and the immune system. This research enabled the uncovering of the nature of stress-diseases and impact of other regulatory disturbances on the function of various body organs and systems of the organism as a whole. The aim of this short review is to show complex interconnections of these relationships to better understand the human health and disease.
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Affiliation(s)
- F Vožeh
- Department of Pathophysiology, Faculty of Medicine in Pilsen, Charles University, Pilsen, Czech Republic.
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311
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Rastelli M, Knauf C, Cani PD. Gut Microbes and Health: A Focus on the Mechanisms Linking Microbes, Obesity, and Related Disorders. Obesity (Silver Spring) 2018; 26:792-800. [PMID: 29687645 PMCID: PMC5947576 DOI: 10.1002/oby.22175] [Citation(s) in RCA: 113] [Impact Index Per Article: 18.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/19/2017] [Revised: 01/26/2018] [Accepted: 01/30/2018] [Indexed: 12/12/2022]
Abstract
The past decade has been characterized by tremendous progress in the field of the gut microbiota and its impact on host metabolism. Although numerous studies show a strong relationship between the composition of gut microbiota and specific metabolic disorders associated with obesity, the key mechanisms are still being studied. The present review focuses on specific complex pathways as well as key interactions. For instance, the nervous routes are explored by examining the enteric nervous system, the vagus nerve, and the brain, as well as the endocrine routes (i.e., glucagon-like peptide-1, peptide YY, endocannabinoids) by which gut microbes communicate with the host. Moreover, the key metabolites involved in such specific interactions (e.g., short chain fatty acids, bile acids, neurotransmitters) as well as their targets (i.e., receptors, cell types, and organs) are briefly discussed. Finally, the review highlights the role of metabolic endotoxemia in the onset of metabolic disorders and the implications for alterations in gut microbiota-host interactions and ultimately the onset of diseases.
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Affiliation(s)
- Marialetizia Rastelli
- Metabolism and Nutrition Research Group, Walloon Excellence in Life Sciences and Biotechnology Institute and Louvain Drug Research InstituteUniversité catholique de LouvainBrusselsBelgium
- European Associated Laboratory NeuroMicrobiotaInstitut National de la Santé et de la Recherche MédicaleToulouseFrance
- European Associated Laboratory NeuroMicrobiotaUniversité catholique de LouvainBrusselsBelgium
| | - Claude Knauf
- European Associated Laboratory NeuroMicrobiotaInstitut National de la Santé et de la Recherche MédicaleToulouseFrance
- European Associated Laboratory NeuroMicrobiotaUniversité catholique de LouvainBrusselsBelgium
- Paul Sabatier UniversityToulouseFrance
- Institut de Recherche en Santé Digestive, Institut National de la Santé et de la Recherche Médicale U1220, Institut national de la recherche agronomique, École nationale vétérinaire de ToulouseToulouseFrance
| | - Patrice D. Cani
- Metabolism and Nutrition Research Group, Walloon Excellence in Life Sciences and Biotechnology Institute and Louvain Drug Research InstituteUniversité catholique de LouvainBrusselsBelgium
- European Associated Laboratory NeuroMicrobiotaInstitut National de la Santé et de la Recherche MédicaleToulouseFrance
- European Associated Laboratory NeuroMicrobiotaUniversité catholique de LouvainBrusselsBelgium
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312
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Chittim CL, Irwin SM, Balskus EP. Deciphering Human Gut Microbiota-Nutrient Interactions: A Role for Biochemistry. Biochemistry 2018; 57:2567-2577. [PMID: 29669199 DOI: 10.1021/acs.biochem.7b01277] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The human gut contains trillions of microorganisms that play a central role in many aspects of host biology, including the provision of key nutrients from the diet. However, our appreciation of how gut microbes and their extensive metabolic capabilities affect the nutritional status of the human host is in its infancy. In this Perspective, we highlight how recent efforts to elucidate the biochemical basis for gut microbial metabolism of dietary components are reshaping our view of these organisms' roles in host nutrition. Gaining a molecular understanding of gut microbe-nutrient interactions will enhance our knowledge of how diet affects host health and disease, ultimately enabling personalized nutrition and therapeutics.
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Affiliation(s)
- Carina L Chittim
- Department of Chemistry and Chemical Biology , Harvard University , 12 Oxford Street , Cambridge , Massachusetts 02138 , United States
| | - Stephania M Irwin
- Department of Chemistry and Chemical Biology , Harvard University , 12 Oxford Street , Cambridge , Massachusetts 02138 , United States
| | - Emily P Balskus
- Department of Chemistry and Chemical Biology , Harvard University , 12 Oxford Street , Cambridge , Massachusetts 02138 , United States
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313
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Stefano GB, Fine R, Kream RM. Microbiome and Health: Ramifications of Intelligent Deception. Med Sci Monit 2018; 24:2060-2062. [PMID: 29626394 PMCID: PMC5905352 DOI: 10.12659/msm.910248] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022] Open
Abstract
Ten thousand years ago, the foundation for agricultural development and animal domestication was laid. Neolithic founder crops were carbohydrate-laden cereal grasses that facilitated transformation of hunter-gather societies into ancient civilizations with realistic capabilities for population expansion. In the last 3–4 decades, however, debilitating medical consequences of a progressively narrowed high caloric diet incorporating processed carbohydrates, animal protein, saturated fat and cholesterol, are translated into a global epidemic of obesity linked to metabolic and endocrine disorders, which, in part, emerged from the enhancement of our longevity. The initiation and progression of pathophysiological processes associated with this restrictive diet may well reside in the gastrointestinal tract. The critical role of human gut microbiome in facilitating normal gut physiology and linkages to other physiological systems points to its significance in comorbid pathologies when its diversity is compromised. Cortical desensitization to the potentially damaging effects of intentionally restricted high carbohydrate diets is progressively enhanced by compromised metabolic activities and widespread pro-inflammatory processes within all organ systems. Our cognitive ability must overcome the desire for comfort foods. The solution is simple: minimize “processed” foods and those of similar commercial origin in our diet, restoring a more diverse gut microbiome. Initially the solution may be costly, however, within the scope of sustained healthy longevity it will “payoff”.
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Affiliation(s)
- George B Stefano
- Department of Psychiatry, First Faculty of Medicine, Charles University, Prague, Czech Republic.,Center for Cognitive and Molecular Neuroscience, General University Hospital in Prague, Prague, Czech Republic
| | - Rachel Fine
- St. Anthony's High School, Melville, NY, USA
| | - Richard M Kream
- Senior Advisor, International Scientific Information, Inc., Melville, NY, USA
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314
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Josypčuk O, Barek J, Josypčuk B. Amperometric Determination of Catecholamines by Enzymatic Biosensors in Flow Systems. ELECTROANAL 2018. [DOI: 10.1002/elan.201800078] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Oksana Josypčuk
- J. Heyrovsky Institute of Physical Chemistry of the CAS; v.v.i. Dolejskova 3 182 23 Prague 8 Czech Republic
| | - Jiří Barek
- Charles University; Faculty of Science, Department of Analytical Chemistry, UNESCO Laboratory of Environmental Electrochemistry; Hlavova 2030/8 128 43 Prague 2 Czech Republic
| | - Bohdan Josypčuk
- J. Heyrovsky Institute of Physical Chemistry of the CAS; v.v.i. Dolejskova 3 182 23 Prague 8 Czech Republic
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315
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Abstract
PURPOSE OF REVIEW Obstructive sleep apnea (OSA) is a significant risk factor for systemic hypertension and other cardiovascular diseases. While this relationship has been firmly established, a detailed understanding of how OSA leads to hypertension is lacking. This review will examine the emerging idea that the gut microbiota plays a role in the development of hypertension, including that associated with OSA. RECENT FINDINGS Disruption of the normal composition of the gut microbiota, termed dysbiosis, has been identified in a number of metabolic and cardiovascular diseases, including diabetes, obesity, and atherosclerosis. Recently, a number of studies have demonstrated gut dysbiosis in various animal models of hypertension as well as in hypertensive patients. Evidence is now emerging that gut dysbiosis plays a causal role in the development of OSA-induced hypertension. In this review, we will examine the evidence that gut dysbiosis plays a role in OSA-induced hypertension. We will discuss potential mechanisms linking OSA to gut dysbiosis, examine how gut dysbiosis may be linked to hypertension, and highlight how this understanding may be utilized for the development of future therapeutics.
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Affiliation(s)
- David J Durgan
- Department of Anesthesiology, Baylor College of Medicine, One Baylor Plaza, Room 434D, Houston, TX, 77030, USA.
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316
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Antza C, Stabouli S, Kotsis V. Gut microbiota in kidney disease and hypertension. Pharmacol Res 2018; 130:198-203. [PMID: 29496593 DOI: 10.1016/j.phrs.2018.02.028] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/15/2017] [Revised: 02/20/2018] [Accepted: 02/21/2018] [Indexed: 02/08/2023]
Abstract
The human gut microbiota is being composed of more than one hundred trillion microbial cells, including aerobic and anaerobic species as well as gram-positive and negative species. Animal based evidence suggests that the change of normal gut microbiota is responsible for several clinical implications including blood pressure increase and kidney function reduction. Trimethylamine-N-Oxide, short-chain fatty acids and inflammatory factors are originated from the gut microbes and may induce changes in arteries, kidneys and blood pressure. Prebiotics and probiotics change the gut microbiota and may reduce high blood pressure and ameliorate chronic kidney disease suggesting a new treatment target in patients for the initial stages of hypertension concomitant with other life style changes such as increased physical exercise and weight reduction to reduce cardiovascular disease complications.
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Affiliation(s)
- C Antza
- Hypertension Center, 3rd Department of Internal Medicine, Papageorgiou Hospital, Aristotle University, Thessaloniki, Greece
| | - S Stabouli
- 1st Department of Pediatrics, Aristotle University, Thessaloniki, Greece
| | - V Kotsis
- Hypertension Center, 3rd Department of Internal Medicine, Papageorgiou Hospital, Aristotle University, Thessaloniki, Greece.
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317
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Cacabelos R, Lombardi V, Fernández-Novoa L, Carrera I, Cacabelos P, Corzo L, Carril JC, Teijido O. Basic and Clinical Studies With Marine LipoFishins and Vegetal Favalins in Neurodegeneration and Age-Related Disorders. STUDIES IN NATURAL PRODUCTS CHEMISTRY 2018. [DOI: 10.1016/b978-0-444-64179-3.00006-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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318
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Kodukula K, Faller DV, Harpp DN, Kanara I, Pernokas J, Pernokas M, Powers WR, Soukos NS, Steliou K, Moos WH. Gut Microbiota and Salivary Diagnostics: The Mouth Is Salivating to Tell Us Something. Biores Open Access 2017; 6:123-132. [PMID: 29098118 PMCID: PMC5665491 DOI: 10.1089/biores.2017.0020] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
The microbiome of the human body represents a symbiosis of microbial networks spanning multiple organ systems. Bacteria predominantly represent the diversity of human microbiota, but not to be forgotten are fungi, viruses, and protists. Mounting evidence points to the fact that the "microbial signature" is host-specific and relatively stable over time. As our understanding of the human microbiome and its relationship to the health of the host increases, it is becoming clear that many and perhaps most chronic conditions have a microbial involvement. The oral and gastrointestinal tract microbiome constitutes the bulk of the overall human microbial load, and thus presents unique opportunities for advancing human health prognosis, diagnosis, and therapy development. This review is an attempt to catalog a broad diversity of recent evidence and focus it toward opportunities for prevention and treatment of debilitating illnesses.
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Affiliation(s)
- Krishna Kodukula
- Bridgewater College, Bridgewater, Virginia
- ShangPharma Innovation, Inc., South San Francisco, California
- PhenoMatriX, Inc., Natick, Massachusetts
| | - Douglas V. Faller
- Department of Medicine, Boston University School of Medicine, Boston, Massachusetts
- Cancer Research Center, Boston University School of Medicine, Boston, Massachusetts
| | - David N. Harpp
- Department of Chemistry, McGill University, Montreal, Canada
| | | | - Julie Pernokas
- Advanced Dental Associates of New England, Woburn, Massachusetts
| | - Mark Pernokas
- Advanced Dental Associates of New England, Woburn, Massachusetts
| | - Whitney R. Powers
- Department of Health Sciences, Boston University, Boston, Massachusetts
- Department of Anatomy, Boston University School of Medicine, Boston, Massachusetts
| | - Nikolaos S. Soukos
- Dana Research Center, Department of Physics, Northeastern University, Boston, Massachusetts
| | - Kosta Steliou
- PhenoMatriX, Inc., Natick, Massachusetts
- Cancer Research Center, Boston University School of Medicine, Boston, Massachusetts
| | - Walter H. Moos
- ShangPharma Innovation, Inc., South San Francisco, California
- Department of Pharmaceutical Chemistry, School of Pharmacy, University of California San Francisco, San Francisco, California
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319
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Gu C, Zhou W, Wang W, Xiang H, Xu H, Liang L, Sui H, Zhan L, Lu X. ZiBuPiYin recipe improves cognitive decline by regulating gut microbiota in Zucker diabetic fatty rats. Oncotarget 2017; 8:27693-27703. [PMID: 28099913 PMCID: PMC5438601 DOI: 10.18632/oncotarget.14611] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2016] [Accepted: 01/04/2017] [Indexed: 12/14/2022] Open
Abstract
Numerous researches supported that microbiota can influence behavior and modulate cognitive function through "microbiota-gut-brain" axis. Our previous study has demonstrated that ZiBuPiYin recipe (ZBPYR) possesses excellent pharmacological effects against diabetes-associated cognitive decline. To elucidate the role of ZBPYR in regulating the balance of gut microbiota to improve psychological-stress-induced diabetes-associated cognitive decline (PSDACD), we compared blood glucose, behavioral and cognitive functions and diversity of the bacterial community among experimental groups. The Zucker diabetic fatty (ZDF) rats with PSDACD exhibited behavioral and cognitive anomalies showing as increased anxiety- and depression-like behaviors and decreased learning and memory abilities. High-throughput sequencing of the bacterial 16S rRNA gene revealed that Roseburia and Coprococcus were decreased in ZDF rats with PSDACD compared with control group. Notably, these changes were reversed by ZBPYR treatment. Our findings indicate that ZBPYR might prevent PSDACD by maintaining the compositions of gut microbiota, which could be developed as a new therapy for T2D with PSDACD.
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MESH Headings
- Animals
- Bacteria/drug effects
- Bacteria/genetics
- Bacteria/isolation & purification
- Blood Glucose/analysis
- Cognition/drug effects
- Cognitive Dysfunction/blood
- Cognitive Dysfunction/drug therapy
- Cognitive Dysfunction/etiology
- Diabetes Mellitus, Type 2/blood
- Diabetes Mellitus, Type 2/complications
- Diabetes Mellitus, Type 2/drug therapy
- Diabetes Mellitus, Type 2/genetics
- Disease Models, Animal
- Drugs, Chinese Herbal/pharmacology
- Drugs, Chinese Herbal/therapeutic use
- Gastrointestinal Microbiome/drug effects
- High-Throughput Nucleotide Sequencing
- Humans
- Intestinal Mucosa/microbiology
- Male
- Maze Learning/drug effects
- Medicine, Chinese Traditional
- Mutation
- RNA, Ribosomal, 16S/isolation & purification
- Rats
- Rats, Zucker
- Receptors, Leptin/genetics
- Sequence Analysis, RNA
- Spatial Memory/drug effects
- Stress, Psychological/complications
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Affiliation(s)
- Chunyan Gu
- School of Medicine and Life Science, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
| | - Wen Zhou
- Basic Medical College, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
| | - Wang Wang
- School of Medicine and Life Science, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
| | - Hong Xiang
- The Second Affiliated Hospital of Dalian Medical University, Dalian, Liaoning, China
| | - Huiying Xu
- Basic Medical College, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
| | - Lina Liang
- Institute of Integrative Medicine, Dalian Medical University, Dalian, Liaoning, China
| | - Hua Sui
- Institute of Integrative Medicine, Dalian Medical University, Dalian, Liaoning, China
| | - Libin Zhan
- Basic Medical College, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
- The Second Affiliated Hospital of Dalian Medical University, Dalian, Liaoning, China
| | - Xiaoguang Lu
- Department of Emergency Medicine, Zhongshan Hospital, Dalian University, Dalian, Liaoning, China
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320
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Abstract
PURPOSE OF REVIEW Obstructive sleep apnea (OSA) is a significant risk factor for systemic hypertension and other cardiovascular diseases. While this relationship has been firmly established, a detailed understanding of how OSA leads to hypertension is lacking. This review will examine the emerging idea that the gut microbiota plays a role in the development of hypertension, including that associated with OSA. RECENT FINDINGS Disruption of the normal composition of the gut microbiota, termed dysbiosis, has been identified in a number of metabolic and cardiovascular diseases, including diabetes, obesity, and atherosclerosis. Recently, a number of studies have demonstrated gut dysbiosis in various animal models of hypertension as well as in hypertensive patients. Evidence is now emerging that gut dysbiosis plays a causal role in the development of OSA-induced hypertension. In this review, we will examine the evidence that gut dysbiosis plays a role in OSA-induced hypertension. We will discuss potential mechanisms linking OSA to gut dysbiosis, examine how gut dysbiosis may be linked to hypertension, and highlight how this understanding may be utilized for the development of future therapeutics.
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Affiliation(s)
- David J Durgan
- Department of Anesthesiology, Baylor College of Medicine, One Baylor Plaza, Room 434D, Houston, TX, 77030, USA.
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321
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Huang Z, Thiebaud N, Fadool DA. Differential serotonergic modulation across the main and accessory olfactory bulbs. J Physiol 2017; 595:3515-3533. [PMID: 28229459 DOI: 10.1113/jp273945] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2016] [Accepted: 02/12/2017] [Indexed: 11/08/2022] Open
Abstract
KEY POINTS There are serotonergic projections to both the main (MOB) and the accessory olfactory bulb (AOB). Current-clamp experiments demonstrate that serotonergic afferents are largely excitatory for mitral cells (MCs) in the MOB where 5-HT2A receptors mediate a direct excitatory action. Serotonergic afferents are predominately inhibitory for MCs in the AOB. There are two types of inhibition: indirect inhibition mediated through the 5-HT2 receptors on GABAergic interneurons and direct inhibition via the 5-HT1 receptors on MCs. Differential 5-HT neuromodulation of MCs across the MOB and AOB could contribute to select behaviours such as olfactory learning or aggression. ABSTRACT Mitral cells (MCs) contained in the main (MOB) and accessory (AOB) olfactory bulb have distinct intrinsic membrane properties but the extent of neuromodulation across the two systems has not been widely explored. Herein, we investigated a widely distributed CNS modulator, serotonin (5-HT), for its ability to modulate the biophysical properties of MCs across the MOB and AOB, using an in vitro, brain slice approach in postnatal 15-30 day mice. In the MOB, 5-HT elicited three types of responses in 93% of 180 cells tested. Cells were either directly excited (70%), inhibited (10%) or showed a mixed response (13%)- first inhibition followed by excitation. In the AOB, 82% of 148 cells were inhibited with 18% of cells showing no response. Albeit located in parallel partitions of the olfactory system, 5-HT largely elicited MC excitation in the MOB while it evoked two different kinetic rates of MC inhibition in the AOB. Using a combination of pharmacological agents, we found that the MC excitatory responses in the MOB were mediated by 5-HT2A receptors through a direct activation. In comparison, 5-HT-evoked inhibitory responses in the AOB arose due to a polysynaptic, slow-onset inhibition attributed to 5-HT2 receptor activation exciting GABAergic interneurons. The second type of inhibition had a rapid onset as a result of direct inhibition mediated by the 5-HT1 class of receptors. The distinct serotonergic modulation of MCs between the MOB and AOB could provide a molecular basis for differential chemosensory behaviours driven by the brainstem raphe nuclei into these parallel systems.
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Affiliation(s)
- Zhenbo Huang
- Program in Neuroscience, The Florida State University, Tallahassee, FL, USA.,Department of Biological Science, The Florida State University, Tallahassee, FL, USA
| | - Nicolas Thiebaud
- Program in Neuroscience, The Florida State University, Tallahassee, FL, USA.,Department of Biological Science, The Florida State University, Tallahassee, FL, USA
| | - Debra Ann Fadool
- Program in Neuroscience, The Florida State University, Tallahassee, FL, USA.,Institute of Molecular Biophysics, The Florida State University, Tallahassee, FL, USA.,Department of Biological Science, The Florida State University, Tallahassee, FL, USA
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322
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Cacabelos R. Parkinson's Disease: From Pathogenesis to Pharmacogenomics. Int J Mol Sci 2017; 18:E551. [PMID: 28273839 PMCID: PMC5372567 DOI: 10.3390/ijms18030551] [Citation(s) in RCA: 317] [Impact Index Per Article: 45.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2017] [Revised: 02/06/2017] [Accepted: 02/20/2017] [Indexed: 12/12/2022] Open
Abstract
Parkinson's disease (PD) is the second most important age-related neurodegenerative disorder in developed societies, after Alzheimer's disease, with a prevalence ranging from 41 per 100,000 in the fourth decade of life to over 1900 per 100,000 in people over 80 years of age. As a movement disorder, the PD phenotype is characterized by rigidity, resting tremor, and bradykinesia. Parkinson's disease -related neurodegeneration is likely to occur several decades before the onset of the motor symptoms. Potential risk factors include environmental toxins, drugs, pesticides, brain microtrauma, focal cerebrovascular damage, and genomic defects. Parkinson's disease neuropathology is characterized by a selective loss of dopaminergic neurons in the substantia nigra pars compacta, with widespread involvement of other central nervous system (CNS) structures and peripheral tissues. Pathogenic mechanisms associated with genomic, epigenetic and environmental factors lead to conformational changes and deposits of key proteins due to abnormalities in the ubiquitin-proteasome system together with dysregulation of mitochondrial function and oxidative stress. Conventional pharmacological treatments for PD are dopamine precursors (levodopa, l-DOPA, l-3,4 dihidroxifenilalanina), and other symptomatic treatments including dopamine agonists (amantadine, apomorphine, bromocriptine, cabergoline, lisuride, pergolide, pramipexole, ropinirole, rotigotine), monoamine oxidase (MAO) inhibitors (selegiline, rasagiline), and catechol-O-methyltransferase (COMT) inhibitors (entacapone, tolcapone). The chronic administration of antiparkinsonian drugs currently induces the "wearing-off phenomenon", with additional psychomotor and autonomic complications. In order to minimize these clinical complications, novel compounds have been developed. Novel drugs and bioproducts for the treatment of PD should address dopaminergic neuroprotection to reduce premature neurodegeneration in addition to enhancing dopaminergic neurotransmission. Since biochemical changes and therapeutic outcomes are highly dependent upon the genomic profiles of PD patients, personalized treatments should rely on pharmacogenetic procedures to optimize therapeutics.
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Affiliation(s)
- Ramón Cacabelos
- EuroEspes Biomedical Research Center, Institute of Medical Science and Genomic Medicine, 15165-Bergondo, Corunna, Spain.
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323
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Simultaneous extraction and determination of monoamine neurotransmitters in human urine for clinical routine testing based on a dual functional solid phase extraction assisted by phenylboronic acid coupled with liquid chromatography-tandem mass spectrometry. Anal Bioanal Chem 2017; 409:2859-2871. [DOI: 10.1007/s00216-017-0231-z] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2016] [Revised: 01/19/2017] [Accepted: 01/26/2017] [Indexed: 01/06/2023]
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