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de Souza Furtado J, de Almeida Brasiel PG, Luquetti SCPD. Profile of the intestinal microbiota of patients with cystic fibrosis: A systematic review. Clin Nutr ESPEN 2023; 55:400-406. [PMID: 37202074 DOI: 10.1016/j.clnesp.2023.04.008] [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: 01/28/2023] [Revised: 02/28/2023] [Accepted: 04/11/2023] [Indexed: 05/20/2023]
Abstract
BACKGROUND & AIMS Cystic fibrosis (CF) is a multisystem disease that can compromise several human body organs. The autosomal recessive genetic disorder is caused by different mutations in the cystic fibrosis transmembrane conductance regulator (CFTR) gene, responsible for chloride ion transport across apical membranes of epithelial cells in tissues and bicarbonate secretion. In this study, we provide a systematic review of the profile of the intestinal microbiota of cystic fibrosis individuals. METHODS The review was conducted according to Preferred Items of Reports for Systematic Reviews and Meta-Analysis (PRISMA) guidelines. PubMed/MEDLINE and Scopus databases were searched for relevant articles until Jully 2022. RESULTS Eighteen studies (1304 participants) met the inclusion criteria. The quality and bias was assessed using the Methodological index for non-randomized studies (MINORS) tool, with the majority of the studies indicating medium to high quality. Results showed significant changes in the composition of the intestinal microbiota of the individuals with CF compared with healthy controls, with increased of Enterococcus, Veillonella, and Streptococcus, and decreased of Bifidobacterium, Roseburia, and Alistipes genus. The intestinal bacterial community of CF patients was marked by a reduction in its richness and diversity. CONCLUSION The systematic review suggests a change in the intestinal microbiota of CF individuals, characterized by a reduction in microbial diversity and abundance of some bacterial markers.
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Caley LR, White H, de Goffau MC, Floto RA, Parkhill J, Marsland B, Peckham DG. Cystic Fibrosis-Related Gut Dysbiosis: A Systematic Review. Dig Dis Sci 2023; 68:1797-1814. [PMID: 36600119 DOI: 10.1007/s10620-022-07812-1] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Accepted: 12/23/2022] [Indexed: 01/06/2023]
Abstract
BACKGROUND AND AIMS Cystic Fibrosis (CF) is associated with gut dysbiosis, local and systemic inflammation, and impaired immune function. Gut microbiota dysbiosis results from changes in the complex gut milieu in response to CF transmembrane conductance regulator (CFTR) dysfunction, pancreatic malabsorption, diet, medications, and environmental influences. In several diseases, alteration of the gut microbiota influences local and systemic inflammation and disease outcomes. We conducted a systematic review of the gut microbiota in CF and explored factors influencing dysbiosis. METHODS An electronic search of three databases was conducted in January 2019, and re-run in June 2021. Human, animal, and in vitro studies were included. The primary outcome was differences in the gut microbiota between people with CF (pwCF) and healthy controls. Secondary outcomes included the relationship between the gut microbiota and other factors, including diet, medication, inflammation, and pulmonary function in pwCF. RESULTS Thirty-eight studies were identified. The literature confirmed the presence of CF-related gut dysbiosis, characterized by reduced diversity and several taxonomic changes. There was a relative increase of bacteria associated with a pro-inflammatory response coupled with a reduction of those considered anti-inflammatory. However, studies linking gut dysbiosis to systemic and lung inflammation were limited. Causes of gut dysbiosis were multifactorial, and findings were variable. Data on the impact of CFTR modulators on the gut microbiota were limited. CONCLUSIONS CF-related gut dysbiosis is evident in pwCF. Whether this influences local and systemic disease and is amenable to interventions with diet and drugs, such as CFTR modulators, requires further investigation.
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Affiliation(s)
- L R Caley
- Leeds Institute of Medical Research, St James's University Hospital, Clinical Sciences Building, Leeds, LS9 7TF, UK
| | - H White
- Nutrition, Health & Environment, Leeds Beckett University, Leeds, UK
| | - M C de Goffau
- Wellcome Sanger Institute, Cambridge, UK.,Tytgat Institute for Liver and Intestinal Research, Amsterdam University Medical Centers, Amsterdam, The Netherlands
| | - R A Floto
- Molecular Immunity Unit, Department of Medicine, University of Cambridge, Cambridge, UK.,Cambridge Centre for Lung Infection, Royal Papworth Hospital, Cambridge, UK
| | - J Parkhill
- Department of Veterinary Medicine, University of Cambridge, Cambridge, UK
| | - B Marsland
- Department of Immunology and Pathology, Central Clinical School, Monash University, Melbourne, Australia
| | - D G Peckham
- Leeds Institute of Medical Research, St James's University Hospital, Clinical Sciences Building, Leeds, LS9 7TF, UK. .,Department of Respiratory Medicine, Leeds Teaching Hospitals NHS Trust, Leeds, UK.
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3
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Piazzesi A, Putignani L. Extremely small and incredibly close: Gut microbes as modulators of inflammation and targets for therapeutic intervention. Front Microbiol 2022; 13:958346. [PMID: 36071979 PMCID: PMC9441770 DOI: 10.3389/fmicb.2022.958346] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Accepted: 07/25/2022] [Indexed: 11/15/2022] Open
Abstract
Chronic inflammation is a hallmark for a variety of disorders and is at least partially responsible for disease progression and poor patient health. In recent years, the microbiota inhabiting the human gut has been associated with not only intestinal inflammatory diseases but also those that affect the brain, liver, lungs, and joints. Despite a strong correlation between specific microbial signatures and inflammation, whether or not these microbes are disease markers or disease drivers is still a matter of debate. In this review, we discuss what is known about the molecular mechanisms by which the gut microbiota can modulate inflammation, both in the intestine and beyond. We identify the current gaps in our knowledge of biological mechanisms, discuss how these gaps have likely contributed to the uncertain outcome of fecal microbiota transplantation and probiotic clinical trials, and suggest how both mechanistic insight and -omics-based approaches can better inform study design and therapeutic intervention.
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Affiliation(s)
- Antonia Piazzesi
- Multimodal Laboratory Medicine Research Area, Unit of Human Microbiome, Bambino Gesù Children’s Hospital, IRCCS, Rome, Italy
| | - Lorenza Putignani
- Department of Diagnostic and Laboratory Medicine, Unit of Microbiology and Diagnostic Immunology, Unit of Microbiomics and Multimodal Laboratory Medicine Research Area, Unit of Human Microbiome, Bambino Gesù Children’s Hospital, IRCCS, Rome, Italy
- *Correspondence: Lorenza Putignani,
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Changing paradigms in the treatment of gastrointestinal complications of cystic fibrosis in the era of cystic fibrosis transmembrane conductance regulator modulators. Paediatr Respir Rev 2022; 42:9-16. [PMID: 33485777 DOI: 10.1016/j.prrv.2020.12.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Accepted: 12/17/2020] [Indexed: 12/17/2022]
Abstract
Cystic fibrosis (CF) - although primarily a lung disease - also causes a variety of gastrointestinal manifestations which are important for diagnosis, prognosis and quality of life. All parts of the gastrointestinal tract can be affected by CF. Besides the well-known pancreatic insufficiency, gastroesophageal reflux disease, liver disease and diseases of the large intestine are important pathologies that impact on prognosis and also impair quality of life. Diagnosis and management of gastrointestinal manifestations will be discussed in this review. Since optimisation of CF therapy is associated with a significantly longer life-span of CF patients nowadays, also gastrointestinal malignancies, which are more common in CF than in the non-CF population need to be considered. Furthermore, novel evidence on the role of the gut microbiome in CF is emerging. The introduction of cystic fibrosis transmembrane conductance regulator (CFTR) protein modulators gives hope for symptom alleviation and even cure of gastrointestinal manifestations of CF.
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5
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Zhang ZX, Xiang H, Sun GG, Yang YH, Chen C, Li T. Effect of dietary selenium intake on gut microbiota in older population in Enshi region. Genes Environ 2021; 43:56. [PMID: 34903302 PMCID: PMC8667455 DOI: 10.1186/s41021-021-00220-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2021] [Accepted: 08/12/2021] [Indexed: 12/31/2022] Open
Abstract
Background The microbial ecosystem in the human gut varies between individuals with differences in diet. Selenium is one of most common trace elements in everyday diet, and selenium intake affects the human gut microbiota. We studied the effect of selenium intake on the gut microbiota in regions of Enshi with different distributions of selenium. Methods One hundred elderly subjects (>65 years) were recruited from high-selenium and low-selenium areas in Enshi and blood, nail, and fecal specimens were obtained. The selenium contents in these samples were determined in triplicate by hydride generation atomic fluorescence spectrometry. DNA was extracted from fecal specimens and the microbial diversity was analyzed by 16 S RNA. Results The selenium contents in the blood and nails were significantly different between the high- and low-selenium areas, and the composition of the intestinal microbiota, including abundance and extent of intestinal flora, was altered. The function and metabolic pathways of the gut microbiota showed clear differences. Conclusions As a trace element in human diet, selenium intake is an important factor that affects the intestinal microbiota and is likely involved in many human diseases. This study provides new clues and ideas for studying the correlation between selenium and human health.
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Affiliation(s)
- Zi-Xiong Zhang
- Institute of Selenium and Human Health of Hubei, Hubei Province, Enshi City, China.,Central Hospital of Enshi Autonomous Prefecture, Enshi Autonomous Prefecture, Hubei Province, Enshi City, China
| | - Hua Xiang
- Central Hospital of Enshi Autonomous Prefecture, Enshi Autonomous Prefecture, Hubei Province, Enshi City, China
| | - Guo-Gen Sun
- Institute of Selenium and Human Health of Hubei, Hubei Province, Enshi City, China.,Central Hospital of Enshi Autonomous Prefecture, Enshi Autonomous Prefecture, Hubei Province, Enshi City, China
| | - Yan-Hua Yang
- Institute of Selenium and Human Health of Hubei, Hubei Province, Enshi City, China.,Central Hospital of Enshi Autonomous Prefecture, Enshi Autonomous Prefecture, Hubei Province, Enshi City, China
| | - Chen Chen
- Research Institute of Otolaryngology Head and Neck Surgery, Renmin Hospital of Wuhan University, Wuhan, China
| | - Tuo Li
- Institute of Selenium and Human Health of Hubei, Hubei Province, Enshi City, China. .,Central Hospital of Enshi Autonomous Prefecture, Enshi Autonomous Prefecture, Hubei Province, Enshi City, China.
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High-Fructose Diet Alters Intestinal Microbial Profile and Correlates with Early Tumorigenesis in a Mouse Model of Barrett’s Esophagus. Microorganisms 2021; 9:microorganisms9122432. [PMID: 34946037 PMCID: PMC8708753 DOI: 10.3390/microorganisms9122432] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2021] [Revised: 11/16/2021] [Accepted: 11/18/2021] [Indexed: 12/12/2022] Open
Abstract
Esophageal adenocarcinoma (EAC) is mostly prevalent in industrialized countries and has been associated with obesity, commonly linked with a diet rich in fat and refined sugars containing high fructose concentrations. In meta-organisms, dietary components are digested and metabolized by the host and its gut microbiota. Fructose has been shown to induce proliferation and cell growth in pancreas and colon cancer cell lines and also alter the gut microbiota. In a previous study with the L2-IL-1B mouse model, we showed that a high-fat diet (HFD) accelerated EAC progression from its precursor lesion Barrett’s esophagus (BE) through changes in the gut microbiota. Aiming to investigate whether a high-fructose diet (HFrD) also alters the gut microbiota and favors EAC carcinogenesis, we assessed the effects of HFrD on the phenotype and intestinal microbial communities of L2-IL1B mice. Results showed a moderate acceleration in histologic disease progression, a mild effect on the systemic inflammatory response, metabolic changes in the host, and a shift in the composition, metabolism, and functionality of intestinal microbial communities. We conclude that HFrD alters the overall balance of the gut microbiota and induces an acceleration in EAC progression in a less pronounced manner than HFD.
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Abstract
Cystic fibrosis (CF) is a heritable, multiorgan disease that impacts all tissues that normally express cystic fibrosis transmembrane conductance regulator (CFTR) protein. While the importance of the airway microbiota has long been recognized, the intestinal microbiota has only recently been recognized as an important player in both intestinal and lung health outcomes for persons with CF (pwCF). Here, we summarize current literature related to the gut-lung axis in CF, with a particular focus on three key ideas: (i) mechanisms through which microbes influence the gut-lung axis, (ii) drivers of microbiota alterations, and (iii) the potential for intestinal microbiota remediation.
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Affiliation(s)
- Courtney E. Price
- Department of Microbiology and Immunology, Geisel School of Medicine at Dartmouth, Hanover New Hampshire, USA
| | - George A. O’Toole
- Department of Microbiology and Immunology, Geisel School of Medicine at Dartmouth, Hanover New Hampshire, USA
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8
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Yang C, Peng C, Jin H, You L, Wang J, Xu H, Sun Z. Comparison of the composition and function of the gut microbiome in herdsmen from two pasture regions, Hongyuan and Xilingol. Food Sci Nutr 2021; 9:3258-3268. [PMID: 34136190 PMCID: PMC8194741 DOI: 10.1002/fsn3.2290] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2020] [Revised: 03/24/2021] [Accepted: 03/29/2021] [Indexed: 12/19/2022] Open
Abstract
There is a close relationship between the gut microbiome and health in humans including regulation of immunity and energy metabolism. This study investigated differences in the gut microbiome of herdsmen from two regions: Hongyuan pasture in Sichuan and Xilingol pasture in Inner Mongolia. We found significant differences in the gut microbiome between the two groups. The main discriminatory species between the two groups were Bifidobacterium longum, Bifidobacterium breve, Phascolarctobacterium succinatutens, Prevotella stercorea, Prevotella copri, Eubacterium biforme, and Fusobacterium prausnitzii. The abundances of Bifidobacterium longum and Bifidobacterium breve were significantly lower in the gut microbiomes of Hongyuan herdsmen than in the gut microbiomes of Xilingol herdsmen. Functional metagenomic analysis showed that more genes were enriched in glycoside hydrolase and transposase in the gut microbiome of Hongyuan herdsmen compared with Xilingol herdsmen, suggesting a higher energy demand in the gut microbiome of Hongyuan herdsmen. Significantly more genes associated with glycolysis, starch degradation, and sucrose degradation were also found in the gut microbiome of Hong yuan herdsmen compared with Xilingol herdsmen. These results indicate that herdsmen from different pastoral regions had distinct gut microbiome composition and functions.
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Affiliation(s)
- Chengcong Yang
- Key Laboratory of Dairy Biotechnology and EngineeringKey Laboratory of Dairy Products ProcessingInner Mongolia Agricultural UniversityHohhotChina
- Key Laboratory of Dairy Products ProcessingMinistry of Agriculture and Rural AffairsInner Mongolia Agricultural UniversityInner MongoliaChina
| | - Chuantao Peng
- Key Laboratory of Dairy Biotechnology and EngineeringKey Laboratory of Dairy Products ProcessingInner Mongolia Agricultural UniversityHohhotChina
- Key Laboratory of Dairy Products ProcessingMinistry of Agriculture and Rural AffairsInner Mongolia Agricultural UniversityInner MongoliaChina
- Qingdao Special Food Research InstituteQingdao Agricultural UniversityQingdaoChina
| | - Hao Jin
- Key Laboratory of Dairy Biotechnology and EngineeringKey Laboratory of Dairy Products ProcessingInner Mongolia Agricultural UniversityHohhotChina
- Key Laboratory of Dairy Products ProcessingMinistry of Agriculture and Rural AffairsInner Mongolia Agricultural UniversityInner MongoliaChina
| | - Lijun You
- Key Laboratory of Dairy Biotechnology and EngineeringKey Laboratory of Dairy Products ProcessingInner Mongolia Agricultural UniversityHohhotChina
- Key Laboratory of Dairy Products ProcessingMinistry of Agriculture and Rural AffairsInner Mongolia Agricultural UniversityInner MongoliaChina
| | - Jiao Wang
- Key Laboratory of Dairy Biotechnology and EngineeringKey Laboratory of Dairy Products ProcessingInner Mongolia Agricultural UniversityHohhotChina
- Key Laboratory of Dairy Products ProcessingMinistry of Agriculture and Rural AffairsInner Mongolia Agricultural UniversityInner MongoliaChina
| | - Haiyan Xu
- Key Laboratory of Dairy Biotechnology and EngineeringKey Laboratory of Dairy Products ProcessingInner Mongolia Agricultural UniversityHohhotChina
- Key Laboratory of Dairy Products ProcessingMinistry of Agriculture and Rural AffairsInner Mongolia Agricultural UniversityInner MongoliaChina
| | - Zhihong Sun
- Key Laboratory of Dairy Biotechnology and EngineeringKey Laboratory of Dairy Products ProcessingInner Mongolia Agricultural UniversityHohhotChina
- Key Laboratory of Dairy Products ProcessingMinistry of Agriculture and Rural AffairsInner Mongolia Agricultural UniversityInner MongoliaChina
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9
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Françoise A, Héry-Arnaud G. The Microbiome in Cystic Fibrosis Pulmonary Disease. Genes (Basel) 2020; 11:E536. [PMID: 32403302 PMCID: PMC7288443 DOI: 10.3390/genes11050536] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2020] [Revised: 04/20/2020] [Accepted: 05/08/2020] [Indexed: 12/19/2022] Open
Abstract
Cystic fibrosis (CF) is a genetic disease with mutational changes leading to profound dysbiosis, both pulmonary and intestinal, from a very young age. This dysbiosis plays an important role in clinical manifestations, particularly in the lungs, affected by chronic infection. The range of microbiological tools has recently been enriched by metagenomics based on next-generation sequencing (NGS). Currently applied essentially in a gene-targeted manner, metagenomics has enabled very exhaustive description of bacterial communities in the CF lung niche and, to a lesser extent, the fungi. Aided by progress in bioinformatics, this now makes it possible to envisage shotgun sequencing and opens the door to other areas of the microbial world, the virome, and the archaeome, for which almost everything remains to be described in cystic fibrosis. Paradoxically, applying NGS in microbiology has seen a rebirth of bacterial culture, but in an extended manner (culturomics), which has proved to be a perfectly complementary approach to NGS. Animal models have also proved indispensable for validating microbiome pathophysiological hypotheses. Description of pathological microbiomes and correlation with clinical status and therapeutics (antibiotic therapy, cystic fibrosis transmembrane conductance regulator (CFTR) modulators) revealed the richness of microbiome data, enabling description of predictive and follow-up biomarkers. Although monogenic, CF is a multifactorial disease, and both genotype and microbiome profiles are crucial interconnected factors in disease progression. Microbiome-genome interactions are thus important to decipher.
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Affiliation(s)
- Alice Françoise
- UMR 1078 GGB, University of Brest, Inserm, EFS, F-29200 Brest, France;
| | - Geneviève Héry-Arnaud
- UMR 1078 GGB, University of Brest, Inserm, EFS, F-29200 Brest, France;
- Unité de Bactériologie, Pôle de Biologie-Pathologie, Centre Hospitalier Régional et Universitaire de Brest, Hôpital de la Cavale Blanche, Boulevard Tanguy Prigent, 29200 Brest, France
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10
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Zhang D, Li S, Wang N, Tan HY, Zhang Z, Feng Y. The Cross-Talk Between Gut Microbiota and Lungs in Common Lung Diseases. Front Microbiol 2020; 11:301. [PMID: 32158441 PMCID: PMC7052046 DOI: 10.3389/fmicb.2020.00301] [Citation(s) in RCA: 212] [Impact Index Per Article: 53.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2019] [Accepted: 02/10/2020] [Indexed: 12/12/2022] Open
Abstract
Emerging findings indicate there is a vital cross-talk between gut microbiota and the lungs, which is known as gut-lung axis. The gut disturbances in lung diseases including allergy, asthma, chronic obstructive pulmonary disease, cystic fibrosis and lung cancer were observed by extensive studies. Investigating how gut microbiota impact other distant organs is of great interest in recent years. Although it has not been fully understood whether the disturbance is the cause or effect of lung diseases, alterations in the gut microbial species and metabolites have been linked to changes in immune responses and inflammation as well as the disease development in the lungs. In this article, we systemically review the role and mechanisms underlying the changes in the constituent of gut microbiota and metabolites in lung diseases. In particular, the roles of gut-lung axis in mediating immune responses and reshaping inflammation are highlighted. Furthermore, we discuss the potential of strategies to manipulate the gut microbiota and metabolites as the therapeutic approach for lung diseases.
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Affiliation(s)
- Dapeng Zhang
- First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Sha Li
- School of Chinese Medicine, LKS Faculty of Medicine, The University of Hong Kong, Hong Kong, China
| | - Ning Wang
- School of Chinese Medicine, LKS Faculty of Medicine, The University of Hong Kong, Hong Kong, China
| | - Hor-Yue Tan
- School of Chinese Medicine, LKS Faculty of Medicine, The University of Hong Kong, Hong Kong, China
| | - Zhimin Zhang
- First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Yibin Feng
- School of Chinese Medicine, LKS Faculty of Medicine, The University of Hong Kong, Hong Kong, China
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11
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Vemuri R, Gundamaraju R, Shinde T, Perera AP, Basheer W, Southam B, Gondalia SV, Karpe AV, Beale DJ, Tristram S, Ahuja KDK, Ball M, Martoni CJ, Eri R. Lactobacillus acidophilus DDS-1 Modulates Intestinal-Specific Microbiota, Short-Chain Fatty Acid and Immunological Profiles in Aging Mice. Nutrients 2019; 11:E1297. [PMID: 31181695 PMCID: PMC6627711 DOI: 10.3390/nu11061297] [Citation(s) in RCA: 49] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2019] [Revised: 06/04/2019] [Accepted: 06/05/2019] [Indexed: 02/07/2023] Open
Abstract
Distribution of the microbiota varies according to the location in the gastrointestinal (GI) tract. Thus, dysbiosis during aging may not be limited to faecal microbiota and extend to the other parts of the GI tract, especially the cecum and colon. Lactobacillus acidophilus DDS-1, a probiotic strain, has been shown to modulate faecal microbiota and its associated metabolic phenotype in aging mice. In the present study, we investigated the effect of L. acidophilus DDS-1 supplementation on caecal- and mucosal-associated microbiota, short-chain fatty acids (SCFAs) and immunological profiles in young and aging C57BL/6J mice. Besides differences in the young and aging control groups, we observed microbial shifts in caecal and mucosal samples, leading to an alteration in SCFA levels and immune response. DDS-1 treatment increased the abundances of beneficial bacteria such as Akkermansia spp. and Lactobacillus spp. more effectively in caecal samples than in mucosal samples. DDS-1 also enhanced the levels of butyrate, while downregulating the production of inflammatory cytokines (IL-6, IL-1β, IL-1α, MCP-1, MIP-1α, MIP-1β, IL-12 and IFN-γ) in serum and colonic explants. Our findings suggest distinct patterns of intestinal microbiota, improvements in SCFA and immunological profiles with DDS-1 supplementation in aging mice.
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Affiliation(s)
- Ravichandra Vemuri
- School of Health Sciences, College of Health and Medicine, University of Tasmania, Launceston, Tasmania, 7250 Australia.
| | - Rohit Gundamaraju
- School of Health Sciences, College of Health and Medicine, University of Tasmania, Launceston, Tasmania, 7250 Australia.
| | - Tanvi Shinde
- School of Health Sciences, College of Health and Medicine, University of Tasmania, Launceston, Tasmania, 7250 Australia.
- Centre for Food Safety and Innovation, Tasmanian Institute of Agriculture, University of Tasmania, Launceston, Tasmania, 7250 Australia.
| | - Agampodi Promoda Perera
- School of Health Sciences, College of Health and Medicine, University of Tasmania, Launceston, Tasmania, 7250 Australia.
| | - Waheedha Basheer
- School of Health Sciences, College of Health and Medicine, University of Tasmania, Launceston, Tasmania, 7250 Australia.
| | - Benjamin Southam
- School of Health Sciences, College of Health and Medicine, University of Tasmania, Launceston, Tasmania, 7250 Australia.
| | - Shakuntla V Gondalia
- Centre for Human Psychopharmacology, Swinburne University of Technology, Hawthorn, Victoria, 3122, Australia.
| | - Avinash V Karpe
- Land and Water, Commonwealth Scientific and Industrial Research Organization (CSIRO), Ecosciences Precinct, Dutton Park, Queensland, 4102, Australia.
| | - David J Beale
- Land and Water, Commonwealth Scientific and Industrial Research Organization (CSIRO), Ecosciences Precinct, Dutton Park, Queensland, 4102, Australia.
| | - Stephen Tristram
- School of Health Sciences, College of Health and Medicine, University of Tasmania, Launceston, Tasmania, 7250 Australia.
| | - Kiran D K Ahuja
- School of Health Sciences, College of Health and Medicine, University of Tasmania, Launceston, Tasmania, 7250 Australia.
| | - Madeleine Ball
- School of Health and Biomedical Sciences, RMIT University, Bundoora, Victoria, 3082 Australia.
| | | | - Rajaraman Eri
- School of Health Sciences, College of Health and Medicine, University of Tasmania, Launceston, Tasmania, 7250 Australia.
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12
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Jayasudha R, Chakravarthy SK, Prashanthi GS, Sharma S, Garg P, Murthy SI, Shivaji S. Alterations in gut bacterial and fungal microbiomes are associated with bacterial Keratitis, an inflammatory disease of the human eye. J Biosci 2018; 43:835-856. [PMID: 30541945] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Dysbiosis, or imbalance in the gut microbiome, has been implicated in auto-immune, inflammatory, neurological diseases as well as in cancers. More recently it has also been shown to be associated with ocular diseases. In the present study, the association of gut microbiome dysbiosis with bacterial Keratitis, an inflammatory eye disease which significantly contributes to corneal blindness, was investigated. Bacterial and fungal gut microbiomes were analysed using fecal samples of healthy controls (HC, n = 21) and bacterial Keratitis patients (BK, n = 19). An increase in abundance of several antiinflammatory organisms including Dialister, Megasphaera, Faecalibacterium, Lachnospira, Ruminococcus and Mitsuokella and members of Firmicutes, Veillonellaceae, Ruminococcaceae and Lachnospiraceae was observed in HC compared to BK patients in the bacterial microbiome. In the fungal microbiome, a decrease in the abundance of Mortierella, Rhizopus, Kluyveromyces, Embellisia and Haematonectria and an increase in the abundance of pathogenic fungi Aspergillus and Malassezia were observed in BK patients compared to HC. In addition, heatmaps, PCoA plots and inferred functional profiles also indicated significant variations between the HC and BK microbiomes, which strongly suggest dysbiosis in the gut microbiome of BK patients. This is the first study demonstrating the association of gut microbiome with the pathophysiology of BK and thus supports the gut-eye axis hypothesis. Considering that Keratitis affects about 1 million people annually across the globe, the data could be the basis for developing alternate strategies for treatment like use of probiotics or fecal transplantation to restore the healthy microbiome as a treatment protocol for Keratitis.
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Affiliation(s)
- Rajagopalaboopathi Jayasudha
- Jhaveri Microbiology Centre, Prof. Brien Holden Eye Research Centre, L. V. Prasad Eye Institute, Kallam Anji Reddy campus, Hyderabad 500 034, India
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13
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Alterations in gut bacterial and fungal microbiomes are associated with bacterial Keratitis, an inflammatory disease of the human eye. J Biosci 2018. [DOI: 10.1007/s12038-018-9798-6] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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14
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Liu F, Lv L, Jiang H, Yan R, Dong S, Chen L, Wang W, Chen YQ. Alterations in the Urinary Microbiota Are Associated With Cesarean Delivery. Front Microbiol 2018; 9:2193. [PMID: 30258432 PMCID: PMC6143726 DOI: 10.3389/fmicb.2018.02193] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2018] [Accepted: 08/27/2018] [Indexed: 12/20/2022] Open
Abstract
Similar to the gut, the bladder contains urinary microbiota, and its bacterial composition and structure are determined by the individual’s health status. Cesarean section is a traumatic event for women and it is correlated with postpartum complications. To better understand the urinary microbiota alterations caused by cesarean section, 16S rDNA sequencing was used to assess urine specimens collected by transurethral catheterization from 30 healthy women undergoing cesarean section pre-delivery (PreD) and post-delivery (PostD). A significant increase in bacterial diversity and more detectable bacteria at the phylum, family, and genus levels was observed in the PostD group compared to the PreD group, indicating that cesarean delivery (a process that includes surgery and delivery) altered the bacterial community. Specifically, the phylum Firmicutes and its affiliated family Lactobacillaceae and genus Lactobacillus dramatically decreased in the PostD group, suggesting that beneficial bacteria decreased after cesarean section, and clinicians should be aware that this might increase the risk of complications. Concurrently, the phylum Proteobacteria and its affiliated bacteria Pseudomonadaceae and Pseudomonas increased in the PostD group compared to the PreD group. This indicates that pathogen growth increases after cesarean section, making it important for clinicians to combat these changes to protect women from infectious diseases. Interestingly, several metabolic pathways, such as metabolism of energy, cofactors and vitamins were strengthened in the PostD group, whereas membrane transport was lessened in this group. This suggests that women’s metabolic disorders might be cured by balancing urinary microbiota. In conclusion, the altered urinary microbiota between the PreD and PostD periods appears to provide insight into how to prevent postpartum metabolic disorders.
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Affiliation(s)
- Fengping Liu
- Wuxi School of Medicine, Jiangnan University, Wuxi, China
| | - Longxian Lv
- Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Huiyong Jiang
- Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Ren Yan
- Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Shurong Dong
- Key Laboratory of Advanced Micro/Nano Electronic Devices and Smart Systems of Zhejiang, College of Information Science and Electronic Engineering, Zhejiang University, Hangzhou, China
| | - Liping Chen
- Intensive Unit, Affiliated Yancheng Hospital, School of Medicine, Southeast University, Nanjing, China
| | - Wei Wang
- Department of Urology, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Yong Q Chen
- Wuxi School of Medicine, Jiangnan University, Wuxi, China
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15
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Vemuri R, Shinde T, Gundamaraju R, Gondalia SV, Karpe AV, Beale DJ, Martoni CJ, Eri R. Lactobacillus acidophilus DDS-1 Modulates the Gut Microbiota and Improves Metabolic Profiles in Aging Mice. Nutrients 2018; 10:E1255. [PMID: 30200669 PMCID: PMC6165029 DOI: 10.3390/nu10091255] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2018] [Revised: 09/03/2018] [Accepted: 09/05/2018] [Indexed: 12/13/2022] Open
Abstract
Recent evidence suggests that gut microbiota shifts can alter host metabolism even during healthy aging. Lactobacillus acidophilus DDS-1, a probiotic strain, has shown promising probiotic character in vitro, as well as in clinical studies. The present study was carried out to investigate whether DDS-1 can modulate the host metabolic phenotype under the condition of age-affected gut microbial shifts in young and aging C57BL/6J mice. Collected fecal samples were analyzed using 16S rRNA gene sequencing for identifying gut microbiota and untargeted gas chromatography-mass spectrometry (GC-MS) metabolomics analysis. Gut microbial shifts were observed in the control groups (young and aging), leading to an alteration in metabolism. Principal coordinate analysis (PCoA) of microbiota indicated distinct separation in both the DDS-1-treated groups. L. acidophilus DDS-1 increased the relative abundances of beneficial bacteria, such as Akkermansia muciniphila and Lactobacillus spp., and reduced the relative levels of opportunistic bacteria such as Proteobacteria spp. Metabolic pathway analysis identified 10 key pathways involving amino acid metabolism, protein synthesis and metabolism, carbohydrate metabolism, and butanoate metabolism. These findings suggest that modulation of gut microbiota by DDS-1 results in improvement of metabolic phenotype in the aging mice.
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Affiliation(s)
- Ravichandra Vemuri
- School of Health Sciences, College of Health and Medicine, University of Tasmania, Launceston, Tasmania 7250, Australia.
| | - Tanvi Shinde
- School of Health Sciences, College of Health and Medicine, University of Tasmania, Launceston, Tasmania 7250, Australia.
- Centre for Food Safety and Innovation, Tasmanian Institute of Agriculture, University of Tasmania, Launceston, Tasmania 7250, Australia.
| | - Rohit Gundamaraju
- School of Health Sciences, College of Health and Medicine, University of Tasmania, Launceston, Tasmania 7250, Australia.
| | - Shakuntla V Gondalia
- Centre for Human Psychopharmacology, Swinburne University of Technology, Hawthorn, Victoria 3122, Australia.
| | - Avinash V Karpe
- CSIRO Land and Water, Ecosciences Precinct, Dutton Park 4102, Queensland 2601, Australia.
| | - David J Beale
- CSIRO Land and Water, Ecosciences Precinct, Dutton Park 4102, Queensland 2601, Australia.
| | | | - Rajaraman Eri
- School of Health Sciences, College of Health and Medicine, University of Tasmania, Launceston, Tasmania 7250, Australia.
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16
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Kim JA, Kim SH, Kim IS, Yu DY, Kim SC, Lee SH, Lee SS, Yun CH, Choi IS, Cho KK. Anti-Inflammatory Effects of a Mixture of Lactic Acid Bacteria and Sodium Butyrate in Atopic Dermatitis Murine Model. J Med Food 2018; 21:716-725. [PMID: 29648971 DOI: 10.1089/jmf.2017.4116] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Atopic dermatitis is a chronic and recurrent inflammatory skin disease. Recently, probiotics have been shown to suppress allergic symptoms through immunomodulatory responses. In the present study, combinatorial effects on allergic symptoms were identified in BALB/c mice fed with a mixture of four species of probiotics, Bifidobacterium lactis, Lactobacillus casei, Lactobacillus rhamnosus, and Lactobacillus plantarum, and sodium butyrate. Following sensitization with whey protein, the mice were challenged and divided into two groups: (1) mice administered with phosphate-buffered saline as a control and (2) mice administered with the probiotic mixture and sodium butyrate. Allergic symptoms were assessed by measuring ear thicknesses, serum histamine and IL-10 concentrations, and the quantities of leaked Evans blue. T cell differentiation was determined by analyzing the T cells groups in the mesenteric lymph nodes (MLNs) and spleen. To examine changes in the total gut microbiota, total fecal microflora was isolated, species identification was performed by DNA sequencing using Illumina MiSeq, and changes in intestinal beneficial bacteria were analyzed using quantitative polymerase chain reaction. Treatment with the probiotic mixture and sodium butyrate reduced ear thicknesses, the quantity of leaked Evans blue, and serum histamine values, while increasing serum IL-10 values. In the mouse model, the probiotic mixture and sodium butyrate increased Th1 and Treg cell differentiation in MLN and spleen tissues; the ratio of Firmicutes/Bacteroidetes, which is associated with reduction in allergic reactions; and microorganisms that lead to cell differentiation into Treg. These results suggest that the probiotic mixture and sodium butyrate can prevent and alleviate allergic symptoms.
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Affiliation(s)
- Jeong A Kim
- 1 Department of Animal Resources Technology, Gyeongnam National University of Science and Technology , Jinju, Korea
| | - Sung-Hak Kim
- 2 Department of Animal Science, Chonnam National University , Gwangju, Korea
| | - In Sung Kim
- 1 Department of Animal Resources Technology, Gyeongnam National University of Science and Technology , Jinju, Korea
| | - Da Yoon Yu
- 1 Department of Animal Resources Technology, Gyeongnam National University of Science and Technology , Jinju, Korea
| | - Sung Chan Kim
- 3 Department of Biochemistry, Institute of Cell Differentiation and Aging, College of Medicine, Hallym University , Chuncheon, Korea
| | - Seung Ho Lee
- 4 Department of Nano-Bioengineering, Incheon National University , Incheon, Korea
| | - Sang Suk Lee
- 5 Department of Animal Science and Technology, Sunchon National University , Sunchon, Korea
| | - Cheol-Heui Yun
- 6 Department of Agricultural Biotechnology, Seoul National University , Seoul, Korea
| | - In Soon Choi
- 7 Department of Life Science, Silla University , Busan, Korea
| | - Kwang Keun Cho
- 1 Department of Animal Resources Technology, Gyeongnam National University of Science and Technology , Jinju, Korea
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