1
|
Mafra D, Ribeiro M, Fonseca L, Regis B, Cardozo LFMF, Fragoso Dos Santos H, Emiliano de Jesus H, Schultz J, Shiels PG, Stenvinkel P, Rosado A. Archaea from the gut microbiota of humans: Could be linked to chronic diseases? Anaerobe 2022; 77:102629. [PMID: 35985606 DOI: 10.1016/j.anaerobe.2022.102629] [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: 03/03/2022] [Revised: 07/31/2022] [Accepted: 08/11/2022] [Indexed: 11/01/2022]
Abstract
Archaea comprise a unique domain of organisms with distinct biochemical and genetic differences from bacteria. Methane-forming archaea, methanogens, constitute the predominant group of archaea in the human gut microbiota, with Methanobrevibacter smithii being the most prevalent. However, the effect of methanogenic archaea and their methane production on chronic disease remains controversial. As perturbation of the microbiota is a feature of chronic conditions, such as cardiovascular disease, neurodegenerative diseases and chronic kidney disease, assessing the influence of archaea could provide a new clue to mitigating adverse effects associated with dysbiosis. In this review, we will discuss the putative role of archaea in the gut microbiota in humans and the possible link to chronic diseases.
Collapse
Affiliation(s)
- Denise Mafra
- Graduate Program in Biological Sciences - Physiology, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, (RJ), Brazil; Graduate Program in Nutrition Sciences, Fluminense Federal University (UFF), Niterói, Brazil; Graduate Program in Medical Sciences, Fluminense Federal University (UFF), Niterói, Brazil.
| | - Marcia Ribeiro
- Graduate Program in Nutrition Sciences, Fluminense Federal University (UFF), Niterói, Brazil
| | - Larissa Fonseca
- Graduate Program in Medical Sciences, Fluminense Federal University (UFF), Niterói, Brazil
| | - Bruna Regis
- Graduate Program in Cardiovascular Sciences, Fluminense Federal University (UFF), Niterói, Brazil
| | - Ludmila F M F Cardozo
- Graduate Program in Cardiovascular Sciences, Fluminense Federal University (UFF), Niterói, Brazil
| | | | | | - Junia Schultz
- Microbial Ecogenomics and Biotechnology Laboratory, Biological and Environmental Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, Makkah, 23955, Saudi Arabia
| | - Paul G Shiels
- Wolfson Wohl Translational Research Centre, University of Glasgow, Garscube Estate, Switchback Road, Bearsden, Glasgow, G61 1QH, UK
| | - Peter Stenvinkel
- Division of Renal Medicine and Baxter Novum, Department of Clinical Science, Technology and Intervention, Karolinska Institutet, Stockholm, Sweden
| | - Alexandre Rosado
- Microbial Ecogenomics and Biotechnology Laboratory, Biological and Environmental Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, Makkah, 23955, Saudi Arabia
| |
Collapse
|
2
|
Catlett JL, Carr S, Cashman M, Smith MD, Walter M, Sakkaff Z, Kelley C, Pierobon M, Cohen MB, Buan NR. Metabolic Synergy between Human Symbionts Bacteroides and Methanobrevibacter. Microbiol Spectr 2022; 10:e0106722. [PMID: 35536023 PMCID: PMC9241691 DOI: 10.1128/spectrum.01067-22] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2022] [Accepted: 04/11/2022] [Indexed: 12/12/2022] Open
Abstract
Trophic interactions between microbes are postulated to determine whether a host microbiome is healthy or causes predisposition to disease. Two abundant taxa, the Gram-negative heterotrophic bacterium Bacteroides thetaiotaomicron and the methanogenic archaeon Methanobrevibacter smithii, are proposed to have a synergistic metabolic relationship. Both organisms play vital roles in human gut health; B. thetaiotaomicron assists the host by fermenting dietary polysaccharides, whereas M. smithii consumes end-stage fermentation products and is hypothesized to relieve feedback inhibition of upstream microbes such as B. thetaiotaomicron. To study their metabolic interactions, we defined and optimized a coculture system and used software testing techniques to analyze growth under a range of conditions representing the nutrient environment of the host. We verify that B. thetaiotaomicron fermentation products are sufficient for M. smithii growth and that accumulation of fermentation products alters secretion of metabolites by B. thetaiotaomicron to benefit M. smithii. Studies suggest that B. thetaiotaomicron metabolic efficiency is greater in the absence of fermentation products or in the presence of M. smithii. Under certain conditions, B. thetaiotaomicron and M. smithii form interspecies granules consistent with behavior observed for syntrophic partnerships between microbes in soil or sediment enrichments and anaerobic digesters. Furthermore, when vitamin B12, hematin, and hydrogen gas are abundant, coculture growth is greater than the sum of growth observed for monocultures, suggesting that both organisms benefit from a synergistic mutual metabolic relationship. IMPORTANCE The human gut functions through a complex system of interactions between the host human tissue and the microbes which inhabit it. These diverse interactions are difficult to model or examine under controlled laboratory conditions. We studied the interactions between two dominant human gut microbes, B. thetaiotaomicron and M. smithii, using a seven-component culturing approach that allows the systematic examination of the metabolic complexity of this binary microbial system. By combining high-throughput methods with machine learning techniques, we were able to investigate the interactions between two dominant genera of the gut microbiome in a wide variety of environmental conditions. Our approach can be broadly applied to studying microbial interactions and may be extended to evaluate and curate computational metabolic models. The software tools developed for this study are available as user-friendly tutorials in the Department of Energy KBase.
Collapse
Affiliation(s)
- Jennie L. Catlett
- Department of Biochemistry, University of Nebraska-Lincoln, Lincoln, Nebraska, USA
| | - Sean Carr
- Department of Biochemistry, University of Nebraska-Lincoln, Lincoln, Nebraska, USA
| | - Mikaela Cashman
- Biosciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee, USA
| | - Megan D. Smith
- Department of Biochemistry, University of Nebraska-Lincoln, Lincoln, Nebraska, USA
| | - Mary Walter
- Department of Biochemistry, University of Nebraska-Lincoln, Lincoln, Nebraska, USA
| | - Zahmeeth Sakkaff
- Department of Computer Science & Engineering, University of Nebraska-Lincoln, Lincoln, Nebraska, USA
| | - Christine Kelley
- Department of Mathematics, University of Nebraska-Lincoln, Lincoln, Nebraska, USA
| | - Massimiliano Pierobon
- Department of Computer Science & Engineering, University of Nebraska-Lincoln, Lincoln, Nebraska, USA
| | - Myra B. Cohen
- Department of Computer Science & Engineering, University of Nebraska-Lincoln, Lincoln, Nebraska, USA
- Department of Computer Science, Iowa State University, Ames, Iowa, USA
| | - Nicole R. Buan
- Department of Biochemistry, University of Nebraska-Lincoln, Lincoln, Nebraska, USA
| |
Collapse
|
3
|
Djemai K, Drancourt M, Tidjani Alou M. Bacteria and Methanogens in the Human Microbiome: a Review of Syntrophic Interactions. MICROBIAL ECOLOGY 2022; 83:536-554. [PMID: 34169332 DOI: 10.1007/s00248-021-01796-7] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/02/2021] [Accepted: 06/14/2021] [Indexed: 06/13/2023]
Abstract
Methanogens are microorganisms belonging to the Archaea domain and represent the primary source of biotic methane. Methanogens encode a series of enzymes which can convert secondary substrates into methane following three major methanogenesis pathways. Initially recognized as environmental microorganisms, methanogens have more recently been acknowledged as host-associated microorganisms after their detection and initial isolation in ruminants in the 1950s. Methanogens have also been co-detected with bacteria in various pathological situations, bringing their role as pathogens into question. Here, we review reported associations between methanogens and bacteria in physiological and pathological situations in order to understand the metabolic interactions explaining these associations. To do so, we describe the origin of the metabolites used for methanogenesis and highlight the central role of methanogens in the syntrophic process during carbon cycling. We then focus on the metabolic abilities of co-detected bacterial species described in the literature and infer from their genomes the probable mechanisms of their association with methanogens. The syntrophic interactions between bacteria and methanogens are paramount to gut homeostasis. Therefore, any dysbiosis affecting methanogens might impact human health. Thus, the monitoring of methanogens may be used as a bio-indicator of dysbiosis. Moreover, new therapeutic approaches can be developed based on their administration as probiotics. We thus insist on the importance of investigating methanogens in clinical microbiology.
Collapse
Affiliation(s)
- Kenza Djemai
- IRD, MEPHI, IHU Méditerranée Infection, Aix-Marseille-University, 19-12 Bd Jean Moulin, 13005, Marseille, France
- IHU Méditerranée Infection, Marseille, France
| | - Michel Drancourt
- IRD, MEPHI, IHU Méditerranée Infection, Aix-Marseille-University, 19-12 Bd Jean Moulin, 13005, Marseille, France
| | - Maryam Tidjani Alou
- IRD, MEPHI, IHU Méditerranée Infection, Aix-Marseille-University, 19-12 Bd Jean Moulin, 13005, Marseille, France.
| |
Collapse
|
4
|
Djemai K, Gouriet F, Sielezneff I, Mege D, Drancourt M, Grine G. Detection of methanogens in peri-appendicular abscesses: Report of four cases. Anaerobe 2021; 72:102470. [PMID: 34743984 DOI: 10.1016/j.anaerobe.2021.102470] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2021] [Revised: 10/20/2021] [Accepted: 10/21/2021] [Indexed: 12/29/2022]
Abstract
The aetiology of appendicular abscess is predominantly microbial with aerobic and anaerobic bacteria from gut flora. In this study, by using specific laboratory tools, we co-detected Methanobrevibacter oralis and Methanobrevibacter smithii among a mixture of enterobacteria including Escherichia coli, Enterococcus faecium and Enterococcus avium in four unrelated cases of postoperative appendiceal abscesses. These unprecedented observations raise a question on the role of methanogens in peri-appendicular abscesses, supporting antibiotics as an alternative therapeutic option for appendicitis, including antibiotics active against methanogens such as metronidazole or fusidic acid.
Collapse
Affiliation(s)
- K Djemai
- Aix-Marseille Univ, IRD, MEPHI, Marseille, France; IHU Méditerranée Infection, Marseille, France
| | - F Gouriet
- Aix-Marseille Univ, IRD, MEPHI, Marseille, France; IHU Méditerranée Infection, Marseille, France
| | - I Sielezneff
- Department of Digestive Surgery, Aix Marseille Univ, APHM, Timone University Hospital, Marseille, France
| | - D Mege
- Department of Digestive Surgery, Aix Marseille Univ, APHM, Timone University Hospital, Marseille, France
| | - M Drancourt
- Aix-Marseille Univ, IRD, MEPHI, Marseille, France; IHU Méditerranée Infection, Marseille, France
| | - G Grine
- IHU Méditerranée Infection, Marseille, France; Aix-Marseille Université, UFR Odontologie, Marseille, France.
| |
Collapse
|
5
|
Guo Y, Zhu X, Zeng M, Qi L, Tang X, Wang D, Zhang M, Xie Y, Li H, Yang X, Chen D. A diet high in sugar and fat influences neurotransmitter metabolism and then affects brain function by altering the gut microbiota. Transl Psychiatry 2021; 11:328. [PMID: 34045460 PMCID: PMC8160265 DOI: 10.1038/s41398-021-01443-2] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/01/2020] [Revised: 05/05/2021] [Accepted: 05/12/2021] [Indexed: 12/12/2022] Open
Abstract
Gut microbiota (GM) metabolites can modulate the physiology of the host brain through the gut-brain axis. We wished to discover connections between the GM, neurotransmitters, and brain function using direct and indirect methods. A diet with increased amounts of sugar and fat (high-sugar and high-fat (HSHF) diet) was employed to disturb the host GM. Then, we monitored the effect on pathology, neurotransmitter metabolism, transcription, and brain circularRNAs (circRNAs) profiles in mice. Administration of a HSHF diet-induced dysbacteriosis, damaged the intestinal tract, changed the neurotransmitter metabolism in the intestine and brain, and then caused changes in brain function and circRNA profiles. The GM byproduct trimethylamine-n-oxide could degrade some circRNAs. The basal level of the GM decided the conversion rate of choline to trimethylamine-n-oxide. A change in the abundance of a single bacterial strain could influence neurotransmitter secretion. These findings suggest that a new link between metabolism, brain circRNAs, and GM. Our data could enlarge the "microbiome-transcriptome" linkage library and provide more information on the gut-brain axis. Hence, our findings could provide more information on the interplay between the gut and brain to aid the identification of potential therapeutic markers and mechanistic solutions to complex problems encountered in studies of pathology, toxicology, diet, and nutrition development.
Collapse
Affiliation(s)
- Yinrui Guo
- grid.411866.c0000 0000 8848 7685School of Basic Medical Science, Guangzhou University of Chinese Medicine, Guangdong, Guangzhou 510120 China
| | - Xiangxiang Zhu
- grid.464309.c0000 0004 6431 5677State Key Laboratory of Applied Microbiology Southern China; Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application; Guangdong Open Laboratory of Applied Microbiology; Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, 510070 China ,grid.258164.c0000 0004 1790 3548Academy of Life Sciences, Jinan University, Guangdong Province, Guangzhou, 510000 China
| | - Miao Zeng
- grid.464309.c0000 0004 6431 5677State Key Laboratory of Applied Microbiology Southern China; Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application; Guangdong Open Laboratory of Applied Microbiology; Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, 510070 China ,grid.411304.30000 0001 0376 205XChengdu University of Traditional Chinese Medicine, Chengdu, 610075 China
| | - Longkai Qi
- grid.464309.c0000 0004 6431 5677State Key Laboratory of Applied Microbiology Southern China; Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application; Guangdong Open Laboratory of Applied Microbiology; Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, 510070 China
| | - Xiaocui Tang
- grid.464309.c0000 0004 6431 5677State Key Laboratory of Applied Microbiology Southern China; Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application; Guangdong Open Laboratory of Applied Microbiology; Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, 510070 China
| | - Dongdong Wang
- grid.464309.c0000 0004 6431 5677State Key Laboratory of Applied Microbiology Southern China; Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application; Guangdong Open Laboratory of Applied Microbiology; Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, 510070 China
| | - Mei Zhang
- grid.411304.30000 0001 0376 205XChengdu University of Traditional Chinese Medicine, Chengdu, 610075 China
| | - Yizhen Xie
- grid.464309.c0000 0004 6431 5677State Key Laboratory of Applied Microbiology Southern China; Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application; Guangdong Open Laboratory of Applied Microbiology; Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, 510070 China
| | - Hongye Li
- grid.258164.c0000 0004 1790 3548Academy of Life Sciences, Jinan University, Guangdong Province, Guangzhou, 510000 China
| | - Xin Yang
- The Fifth Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510700, China.
| | - Diling Chen
- State Key Laboratory of Applied Microbiology Southern China; Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application; Guangdong Open Laboratory of Applied Microbiology; Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, 510070, China.
| |
Collapse
|
6
|
Abstract
Volatolomics allows us to elucidate cell metabolic processes in real time. In particular, a volatile organic compound (VOC) excreted from our bodies may be specific for a certain disease, such that measuring this VOC may afford a simple, fast, accessible and safe diagnostic approach. Yet, finding the optimal endogenous volatile marker specific to a pathology is non-trivial because of interlaboratory disparities in sample preparation and analysis, as well as high interindividual variability. These limit the sensitivity and specificity of volatolomics and its applications in biological and clinical fields but have motivated the development of induced volatolomics. This approach aims to overcome issues by measuring VOCs that result not from an endogenous metabolite but, rather, from the pathogen-specific or metabolic-specific enzymatic metabolism of an exogenous biological or chemical probe. In this Review, we introduce volatile-compound-based probes and discuss how they can be exploited to detect and discriminate pathogenic infections, to assess organ function and to diagnose and monitor cancers in real time. We focus on cases in which labelled probes have informed us about metabolic processes and consider the potential and drawbacks of the probes for clinical trials. Beyond diagnostics, VOC-based probes may also be effective tools to explore biological processes more generally.
Collapse
|
7
|
Wang B, Xu Y, Hou X, Li J, Cai Y, Hao Y, Ouyang Q, Wu B, Sun Z, Zhang M, Ban Y. Small Intestinal Bacterial Overgrowth in Subclinical Hypothyroidism of Pregnant Women. Front Endocrinol (Lausanne) 2021; 12:604070. [PMID: 34108932 PMCID: PMC8181748 DOI: 10.3389/fendo.2021.604070] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Accepted: 05/03/2021] [Indexed: 02/02/2023] Open
Abstract
OBJECTIVE To evaluate the small intestinal bacterial overgrowth (SIBO) of subclinical hypothyroidism of pregnant women, and explore their possible relevance. METHODS In total, 224 pregnant women with subclinical hypothyroidism during pregnancy (study group) and 196 pregnant women whose thyroid function was normal (control group) were enrolled in this study. Lactulose-based hydrogen and methane breath test was performed to evaluate the growth of intestinal bacteria. The serum-free thyroid hormone (FT4), thyroid-stimulating hormone (TSH), thyroid peroxidase antibody (TPOAb), body mass index (BMI) and gastrointestinal symptoms were detected and recorded. RESULTS The positive rates of SIBO were 56.7% and 31.6% in study group and control group, respectively. The levels of C response protein (CRP), abdominal distension and constipation in study group were higher than those in the control group. The risk of abdominal distension and constipation in SIBO-positive pregnant women were higher than that in SIBO-negative pregnant women, and the BMI of SIBO-positive patients in the two groups was lower than that of SIBO-negative patients in each group. In addition, the TPOAb-positive rate and TSH levels were higher but the FT4 level was lower in SIBO-positive patients compared to SIBO-negative patients in study group. CONCLUSION The occurrence of subclinical hypothyroidism is related to SIBO, and the excessive growth of small intestinal bacteria may affect gastrointestinal symptoms. CLINICAL TRIAL http://www.chictr.org.cn/index.aspx, identifier ChiCTR1900026326.
Collapse
|
8
|
Ozato N, Saito S, Yamaguchi T, Katashima M, Tokuda I, Sawada K, Katsuragi Y, Kakuta M, Imoto S, Ihara K, Nakaji S. Association between breath methane concentration and visceral fat area: a population-based cross-sectional study. J Breath Res 2020; 14:026008. [PMID: 31835267 DOI: 10.1088/1752-7163/ab61c6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
High visceral fat area (VFA) is a stronger predictor of cardiovascular disease and overall mortality, compared with body mass index (BMI) and waist circumference (WC). Recent reports demonstrate that obesity is related to breath gas, which is produced by the intestinal microflora. However, these studies define obesity using BMI, not VFA. In this population-based cross-sectional study, we investigated the relationship between breath gases (methane and hydrogen) and both VFA and BMI. A total of 1033 participants (62% women; age [mean ± standard deviation] 54.4 ± 14.9 years) in the 2015 Iwaki Health Promotion Project in Japan were enrolled in the study. Breath samples were collected using a breath bag and analyzed by gas chromatography. VFA was measured using a visceral fat meter. The proportion of methanogenic bacteria to total intestinal microbiota was measured by polymerase chain reaction and 16S rRNA gene sequencing analysis. Our analysis revealed a significant association between high VFA and low breath methane, even after adjusting for confounding factors (B = -0.024 and P = 0.004). To identify the association between breath methane and VFA in participants with methane-producing bacteria in their intestinal microflora, participants were divided into two groups based on the presence or absence of methanogenic bacteria in their stool. The Methanogen + group was further divided into two subgroups with breath methane higher (Methane-UP) or lower (Methane-LO) than the median breath methane concentration. VFA was significantly lower in the Methane-UP group than in the Methane-LO group. In participants with methanogenic bacteria, breath methane concentration might be an independent biomarker of visceral fat accumulation.
Collapse
Affiliation(s)
- Naoki Ozato
- Department of Active Life Promotion Sciences, Graduate School of Medicine, Hirosaki University, Japan. Health Care Food Research Laboratories, Kao Corporation, Japan
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
9
|
Nogacka AM, Salazar N, Arboleya S, Ruas-Madiedo P, Mancabelli L, Suarez A, Martinez-Faedo C, Ventura M, Tochio T, Hirano K, Endo A, G. de los Reyes-Gavilán C, Gueimonde M. In Vitro Evaluation of Different Prebiotics on the Modulation of Gut Microbiota Composition and Function in Morbid Obese and Normal-Weight Subjects. Int J Mol Sci 2020; 21:E906. [PMID: 32019174 PMCID: PMC7038051 DOI: 10.3390/ijms21030906] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Revised: 01/13/2020] [Accepted: 01/28/2020] [Indexed: 02/07/2023] Open
Abstract
The gut microbiota remains relatively stable during adulthood; however, certain intrinsic and environmental factors can lead to microbiota dysbiosis. Its restoration towards a healthy condition using best-suited prebiotics requires previous development of in vitro models for evaluating their functionality. Herein, we carried out fecal cultures with microbiota from healthy normal-weight and morbid obese adults. Cultures were supplemented with different inulin-type fructans (1-kestose, Actilight, P95, Synergy1 and Inulin) and a galactooligosaccharide. Their impact on the gut microbiota was assessed by monitoring gas production and evaluating changes in the microbiota composition (qPCR and 16S rRNA gene profiling) and metabolic activity (gas chromatography). Additionally, the effect on the bifidobacterial species was assessed (ITS-sequencing). Moreover, the functionality of the microbiota before and after prebiotic-modulation was determined in an in vitro model of interaction with an intestinal cell line. In general, 1-kestose was the compound showing the largest effects. The modulation with prebiotics led to significant increases in the Bacteroides group and Faecalibacterium in obese subjects, whereas in normal-weight individuals, substantial rises in Bifidobacterium and Faecalibacterium were appreciated. Notably, the results obtained showed differences in the responses among the tested compounds but also among the studied human populations, indicating the need for developing population-specific products.
Collapse
Affiliation(s)
- Alicja M. Nogacka
- Department of Microbiology and Biochemistry of Dairy Products, Instituto de Productos Lácteos de Asturias (IPLA-CSIC), 33300 Villaviciosa, Asturias, Spain; (N.S.); (S.A.); (P.R.-M.); (C.G.d.l.R.-G.); (M.G.)
- Diet, Human Microbiota and Health Group, Institute of Health Research of the Principality of Asturias (ISPA), 33011 Oviedo, Spain;
| | - Nuria Salazar
- Department of Microbiology and Biochemistry of Dairy Products, Instituto de Productos Lácteos de Asturias (IPLA-CSIC), 33300 Villaviciosa, Asturias, Spain; (N.S.); (S.A.); (P.R.-M.); (C.G.d.l.R.-G.); (M.G.)
- Diet, Human Microbiota and Health Group, Institute of Health Research of the Principality of Asturias (ISPA), 33011 Oviedo, Spain;
| | - Silvia Arboleya
- Department of Microbiology and Biochemistry of Dairy Products, Instituto de Productos Lácteos de Asturias (IPLA-CSIC), 33300 Villaviciosa, Asturias, Spain; (N.S.); (S.A.); (P.R.-M.); (C.G.d.l.R.-G.); (M.G.)
- Diet, Human Microbiota and Health Group, Institute of Health Research of the Principality of Asturias (ISPA), 33011 Oviedo, Spain;
| | - Patricia Ruas-Madiedo
- Department of Microbiology and Biochemistry of Dairy Products, Instituto de Productos Lácteos de Asturias (IPLA-CSIC), 33300 Villaviciosa, Asturias, Spain; (N.S.); (S.A.); (P.R.-M.); (C.G.d.l.R.-G.); (M.G.)
- Functionality and Ecology of Beneficial Microorganisms, Institute of Health Research of the Principality of Asturias (ISPA), 33011 Oviedo, Spain
| | - Leonardo Mancabelli
- Laboratory of Probiogenomics, Department of Life Sciences, University of Parma, 43121 Parma, Italy; (L.M.); (M.V.)
| | - Adolfo Suarez
- Diet, Human Microbiota and Health Group, Institute of Health Research of the Principality of Asturias (ISPA), 33011 Oviedo, Spain;
- Digestive Service, Central University Hospital of Asturias (HUCA), 33011 Oviedo, Asturias, Spain
| | - Ceferino Martinez-Faedo
- Endocrinology and Nutrition Service, Central University Hospital of Asturias (HUCA), 33011 Oviedo, Asturias, Spain;
- Endocrinology, Nutrition, Diabetes and Obesity Group, Institute of Health Research of the Principality of Asturias (ISPA), 33011 Oviedo, Spain
| | - Marco Ventura
- Laboratory of Probiogenomics, Department of Life Sciences, University of Parma, 43121 Parma, Italy; (L.M.); (M.V.)
| | - Takumi Tochio
- β-Food Sciences Co., Chita 478-0046, Japan; (T.T.); (K.H.)
| | | | - Akihito Endo
- Department of Food and Cosmetic Science, Tokyo University of Agriculture, Abashiri 099-2493, Japan;
| | - Clara G. de los Reyes-Gavilán
- Department of Microbiology and Biochemistry of Dairy Products, Instituto de Productos Lácteos de Asturias (IPLA-CSIC), 33300 Villaviciosa, Asturias, Spain; (N.S.); (S.A.); (P.R.-M.); (C.G.d.l.R.-G.); (M.G.)
- Diet, Human Microbiota and Health Group, Institute of Health Research of the Principality of Asturias (ISPA), 33011 Oviedo, Spain;
| | - Miguel Gueimonde
- Department of Microbiology and Biochemistry of Dairy Products, Instituto de Productos Lácteos de Asturias (IPLA-CSIC), 33300 Villaviciosa, Asturias, Spain; (N.S.); (S.A.); (P.R.-M.); (C.G.d.l.R.-G.); (M.G.)
- Diet, Human Microbiota and Health Group, Institute of Health Research of the Principality of Asturias (ISPA), 33011 Oviedo, Spain;
| |
Collapse
|
10
|
Chen Y, Wu G, Zhao Y. Gut Microbiota and Alimentary Tract Injury. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2020; 1238:11-22. [PMID: 32323177 DOI: 10.1007/978-981-15-2385-4_2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The gastrointestinal (GI) tract is inhabited by a diverse array of microbes, which play crucial roles in health and disease. Dysbiosis of microbiota has been tightly linked to gastrointestinal inflammatory and malignant diseases. Here we highlight the role of Helicobacter pylori alongside gastric microbiota associated with gastric inflammation and cancer. We summarize the taxonomic and functional aspects of intestinal microbiota linked to inflammatory bowel diseases (IBD), irritable bowel syndrome (IBS), and colorectal cancer in clinical investigations. We also discuss microbiome-related animal models. Nevertheless, there are tremendous opportunities to reveal the causality of microbiota in health and disease and detailed microbe-host interaction mechanisms by which how dysbiosis is causally linked to inflammatory disease and cancer, in turn, potentializing clinical interventions with a personalized high efficacy.
Collapse
Affiliation(s)
- Ye Chen
- Department of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Guangyan Wu
- Department of Pathophysiology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China
| | - Yongzhong Zhao
- Department of Cellular and Molecular Medicine, Lerner Research Institute, Cleveland Clinic, Cleveland, OH, USA.
| |
Collapse
|
11
|
The human archaeome: methodological pitfalls and knowledge gaps. Emerg Top Life Sci 2018; 2:469-482. [PMID: 33525835 DOI: 10.1042/etls20180037] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2018] [Revised: 09/20/2018] [Accepted: 10/01/2018] [Indexed: 02/07/2023]
Abstract
Forty years ago, archaea were described as a separate domain of life, distinct from bacteria and eukarya. Although it is known for quite a long time that methanogenic archaea are substantial components of the human gastrointestinal tract (GIT) and the oral cavity, the knowledge on the human archaeome is very limited. Various methodological problems contribute to the invisibility of the human archaeome, resulting in severe knowledge gaps and contradictory information. Similar to the bacteriome, the archaeal biogeography was found to be site-specific, forming (i) the thaumarchaeal skin landscape, (ii) the (methano)euryarchaeal GIT landscape, (iii) a mixed skin/GIT landscape in nose, and (iv) a woesearchaeal lung landscape, including numerous unknown archaeal clades. Compared with so-called universal microbiome approaches, archaea-specific protocols reveal a wide diversity and high quantity of archaeal signatures in various human tissues, with up to 1 : 1 ratios of bacteria and archaea in appendix and nose samples. The archaeome interacts closely with the bacteriome and the human body cells, whereas the roles of the human-associated archaea with respect to human health are only sparsely described. Methanogenic archaea and methane production were correlated with many health issues, including constipation, periodontitis and multiple sclerosis. However, one of the most burning questions - do archaeal pathogens exist? - still remains obscure to date.
Collapse
|