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Wang P, Wang S, Zhu C, Sun Y, Yan Q, Yi G. Monascus purpureus M-32 fermented soybean meal improves the growth, immunity parameters, intestinal morphology, disease resistance, intestinal microbiota and metabolome in Pacific white shrimp ( Litopenaeus vannamei). ANIMAL NUTRITION (ZHONGGUO XU MU SHOU YI XUE HUI) 2024; 17:283-296. [PMID: 38800738 PMCID: PMC11127234 DOI: 10.1016/j.aninu.2024.03.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Revised: 02/03/2024] [Accepted: 03/28/2024] [Indexed: 05/29/2024]
Abstract
This study was conducted to evaluate the effects of Monascus purpureus M-32 fermented soybean meal (MFSM) on growth, immunity, intestinal morphology, intestinal microbiota, and intestinal metabolome of Pacific white shrimp (Litopenaeus vannamei). Four groups of diets were formulated, including control group (30% fish meal and 30% soybean meal [SBM] included in the basal diet) and three experimental groups which MFSM replaced 20% (MFSM20), 40% (MFSM40), and 60% (MFSM60) of SBM in control group, respectively. Results showed that the soluble proteins larger than 49 kDa in MFSM were almost completely degraded. Meanwhile, the crude protein, acid-soluble protein, and amino acid in MFSM were increased. The results of shrimp culture experiment showed that the replacement of SBM with MFSM decreased FCR (P < 0.001) and content of malondialdehyde (P = 0.007) in the experimental groups, and increased weight gain rate (P = 0.006), specific growth rate (P = 0.002), survival rate (P = 0.005), intestinal villus height (P < 0.001), myenteric thickness (P = 0.002), the activities of superoxide dismutase (P = 0.002), and lysozyme (P = 0.006) in experimental groups, as well as increased content of calcium (Ca2+) and phosphorus (PO 4 3 - ) in blood and muscle, and enhanced resistance to Vibrio parahaemolyticus infection. The gut microbiota of MFSM groups was significantly different from that of the control group, and the abundance of Actinobacteria and Verrucomicrobia increased significantly in the MFSM60 group, whereas Proteobacteria and Firmicutes decreased. Compared with the control group, there were significant changes in the levels of several intestinal metabolites in the MFSM60 group, including leukotriene C5, prostaglandin A1, taurochenodeoxycholic acid, carnosine, and itaconic acid. The fermentation of SBM by the strain M. purpureus M-32 has the potential to enhance the nutritional quality of SBM, promote the growth of L. vannamei, boost immune response, improve intestinal morphology and microbiota composition, as well as influence intestinal metabolites.
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Affiliation(s)
- Pan Wang
- Fisheries College, Jimei University, Xiamen, Fujian 361021, China
- Key Laboratory of Aquatic Functional Feed and Environmental Regulation of Fujian Province, Fujian DBN Aquatic Sci. & Tech. Co., Ltd., Zhangzou, Fujian 363500, China
| | - Shanshan Wang
- Key Laboratory of Aquatic Functional Feed and Environmental Regulation of Fujian Province, Fujian DBN Aquatic Sci. & Tech. Co., Ltd., Zhangzou, Fujian 363500, China
| | - Chuanzhong Zhu
- Key Laboratory of Aquatic Functional Feed and Environmental Regulation of Fujian Province, Fujian DBN Aquatic Sci. & Tech. Co., Ltd., Zhangzou, Fujian 363500, China
| | - Yunzhang Sun
- Fisheries College, Jimei University, Xiamen, Fujian 361021, China
| | - Qingpi Yan
- Fisheries College, Jimei University, Xiamen, Fujian 361021, China
| | - Ganfeng Yi
- Key Laboratory of Aquatic Functional Feed and Environmental Regulation of Fujian Province, Fujian DBN Aquatic Sci. & Tech. Co., Ltd., Zhangzou, Fujian 363500, China
- Fantastic Victory (Shenzhen) Technological Innovation Group Co., Ltd., Shenzhen, Guangdong 518054, China
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Breyer GM, De Carli S, Muterle Varela AP, Mann MB, Frazzon J, Quoos Mayer F, Siqueira FM. Carrier state of enterotoxigenic Escherichia coli virulence markers in pigs: Effects on gut microbiota modulation and immune markers transcription. Microb Pathog 2024; 191:106662. [PMID: 38663640 DOI: 10.1016/j.micpath.2024.106662] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2023] [Revised: 04/01/2024] [Accepted: 04/20/2024] [Indexed: 05/24/2024]
Abstract
Enterotoxigenic Escherichia coli (ETEC) causes diarrhea in pigs at early age, leading to high mortality rates and significant economic losses in the swine industry. ETEC effect on gut microbiota and immune system is mostly studied in diarrheic model under controlled laboratory conditions, however its impact on asymptomatic carriers remains unknown. Thus, we investigated whether ETEC can modulate gut microbiota or regulate the transcription of immune markers in asymptomatic pigs in farm environment. Stool samples from newborn piglets, nursery and growing pigs, and sows were screened for ETEC markers, then submitted to 16S-rDNA sequencing to explore gut microbiota composition in carriers (ETEC+) and non-carriers (ETEC-) animals. We observed a reduced α-diversity in ETEC+ animals (p < 0.05), while bacterial compositions were mostly driven by ageing (p > 0.05). Prevotella marked ETEC-carrier group, while Rikenellaceae RC9 gut group was a marker for a healthy gut microbiota, suggesting that they might be biomarker candidates for surveillance and supplementation purposes. Furthermore, we observed transcription regulation of il6 and tff2 genes in ETEC+ in newborn and nursery stages, respectively. Our findings indicate that ETEC presence modulate gut microbiota and the immune response in asymptomatic pigs; nevertheless, further studies using a probabilistic design must be performed to assess the effect of ETEC presence on gut imbalance in pigs despite the age bias.
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Affiliation(s)
- Gabriela Merker Breyer
- Laboratório de Bacteriologia Veterinária (LaBacVet), Universidade Federal Do Rio Grande Do Sul, Departamento de Patologia Veterinária, Porto Alegre, Brazil; Programa de Pós-Graduação Em Ciências Veterinárias, Universidade Federal Do Rio Grande Do Sul, Porto Alegre, Brazil
| | - Silvia De Carli
- Laboratório de Bacteriologia Veterinária (LaBacVet), Universidade Federal Do Rio Grande Do Sul, Departamento de Patologia Veterinária, Porto Alegre, Brazil; Programa de Pós-Graduação Em Ciências Veterinárias, Universidade Federal Do Rio Grande Do Sul, Porto Alegre, Brazil
| | - Ana Paula Muterle Varela
- Programa de Pós-Graduação Em Biociências, Universidade Federal de Ciências da Saúde de Porto Alegre, Porto Alegre, Brazil
| | - Michele Bertoni Mann
- Programa de Pós-Graduação Em Microbiologia Agrícola e Do Ambiente, Universidade Federal Do Rio Grande Do Sul, Porto Alegre, Brazil
| | - Jeverson Frazzon
- Programa de Pós-Graduação Em Microbiologia Agrícola e Do Ambiente, Universidade Federal Do Rio Grande Do Sul, Porto Alegre, Brazil; Laboratório de Bioquímica e Biologia Molecular de Microrganismos, Departamento de Ciência de Alimentos, Universidade Federal Do Rio Grande Do Sul, Porto Alegre, Brazil
| | - Fabiana Quoos Mayer
- Centro de Pesquisa Em Saúde Animal, Instituto de Pesquisas Veterinárias Desidério Finamor, Departamento de Diagnóstico e Pesquisa Agropecuária, Secretaria da Agricultura, Pecuária e Desenvolvimento Rural, Eldorado Do Sul, Brazil; Departamento de Biologia Molecular e Biotecnologia, Instituto de Biociências, Universidade Federal Do Rio Grande Do Sul, Porto Alegre, Brazil
| | - Franciele Maboni Siqueira
- Laboratório de Bacteriologia Veterinária (LaBacVet), Universidade Federal Do Rio Grande Do Sul, Departamento de Patologia Veterinária, Porto Alegre, Brazil; Programa de Pós-Graduação Em Ciências Veterinárias, Universidade Federal Do Rio Grande Do Sul, Porto Alegre, Brazil.
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Ahmad T, Erum Ishaq S, Liang L, Hou J, Xie R, Dong Y, Yu T, Wang F. Description of the first cultured representative of "Candidatus Synoicihabitans" genus, isolated from deep-sea sediment of South China Sea. Syst Appl Microbiol 2024; 47:126490. [PMID: 38330528 DOI: 10.1016/j.syapm.2024.126490] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2023] [Revised: 01/28/2024] [Accepted: 01/31/2024] [Indexed: 02/10/2024]
Abstract
In this study we describe the first cultured representative of Candidatus Synoicihabitans genus, a novel strain designated as LMO-M01T, isolated from deep-sea sediment of South China Sea. This bacterium is a facultative aerobe, Gram-negative, non-motile, and has a globular-shaped morphology, with light greenish, small, and circular colonies. Analysis of the 16S rRNA gene sequences of strain LMO-M01T showed less than 93% similarity to its closest cultured members. Furthermore, employing advanced phylogenomic methods such as comparative genome analysis, average nucleotide identity (ANI), average amino acids identity (AAI), and digital DNA-DNA hybridization (dDDH), placed this novel species within the candidatus genus Synoicihabitans of the family Opitutaceae, Phylum Verrucomicrobiota. The genomic analysis of strain LMO-M01T revealed 175 genes, encoding putative carbohydrate-active enzymes. This suggests its metabolic potential to degrade and utilize complex polysaccharides, indicating a significant role in carbon cycling and nutrient turnover in deep-sea sediment. In addition, the strain's physiological capacity to utilize diverse biopolymers such as lignin, xylan, starch, and agar as sole carbon source opens up possibilities for sustainable energy production and environmental remediation. Moreover, the genome sequence of this newly isolated strain has been identified across diverse ecosystems, including marine sediment, fresh water, coral, soil, plants, and activated sludge highlighting its ecological significance and adaptability to various environments. The recovery of strain LMO-M01T holds promise for taxonomical, ecological and biotechnological applications. Based on the polyphasic data, we propose that this ecologically important strain LMO-M01T represents a novel genus (previously Candidatus) within the family Opitutaceae of phylum Verrucomicrobiota, for which the name Synoicihabitans lomoniglobus gen. nov., sp. nov. was proposed. The type of strain is LMO-M01T (= CGMCC 1.61593T = KCTC 92913T).
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Affiliation(s)
- Tariq Ahmad
- State Key Laboratory of Microbial Metabolism, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai 200240, PR China
| | - Sidra Erum Ishaq
- State Key Laboratory of Microbial Metabolism, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai 200240, PR China
| | - Lewen Liang
- Key Laboratory of Polar Ecosystem and Climate Change, Ministry of Education, School of Oceanography, Shanghai Jiao Tong University, Shanghai 200240, PR China
| | - Jialin Hou
- Key Laboratory of Polar Ecosystem and Climate Change, Ministry of Education, School of Oceanography, Shanghai Jiao Tong University, Shanghai 200240, PR China
| | - Ruize Xie
- Key Laboratory of Polar Ecosystem and Climate Change, Ministry of Education, School of Oceanography, Shanghai Jiao Tong University, Shanghai 200240, PR China
| | - Yijing Dong
- School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240, PR China
| | - Tiantian Yu
- Key Laboratory of Polar Ecosystem and Climate Change, Ministry of Education, School of Oceanography, Shanghai Jiao Tong University, Shanghai 200240, PR China
| | - Fengping Wang
- State Key Laboratory of Microbial Metabolism, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai 200240, PR China; Key Laboratory of Polar Ecosystem and Climate Change, Ministry of Education, School of Oceanography, Shanghai Jiao Tong University, Shanghai 200240, PR China.
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Meng X, Xv C, Lv J, Zhang S, Ma C, Pang X. Optimizing Akkermansia muciniphila Isolation and Cultivation: Insights into Gut Microbiota Composition and Potential Growth Promoters in a Chinese Cohort. Microorganisms 2024; 12:881. [PMID: 38792711 PMCID: PMC11124125 DOI: 10.3390/microorganisms12050881] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2024] [Revised: 04/24/2024] [Accepted: 04/25/2024] [Indexed: 05/26/2024] Open
Abstract
The study aims to analyze the composition of the gut microbiota in Chinese individuals using metagenomic sequencing technology, with a particular focus on the abundance of Akkermansia muciniphila (Akk). To improve the efficiency of Akk isolation and identification accuracy, modifications were made to the enrichment culture medium and 16S rRNA universal primers. Additionally, potential growth-promoting factors that stimulate Akk growth were explored through in vitro screening. The research results revealed that the abundance of Akk in Chinese fecal samples ranged from 0.004% to 0.4%. During optimization, a type of animal protein peptide significantly enhanced the enrichment efficiency of Akk, resulting in the isolation of three Akk strains from 14 fecal samples. Furthermore, 17 different growth-promoting factors were compared, and four factors, including galactose, sialic acid, lactose, and chitosan, were identified as significantly promoting Akk growth. Through orthogonal experiments, the optimal ratio of these four growth-promoting factors was determined to be 1:1:2:1. After adding 1.25% of this growth-promoting factor combination to the standard culture medium, Akk was cultivated at 37° for 36 h, achieving an OD600nm value of 1.169, thus realizing efficient proliferation and optimized cultivation of Akk. This study provides important clues for a deeper understanding of the gut microbiota composition in Chinese individuals, while also offering effective methods for the isolation and cultivation of Akk, laying the groundwork for its functional and application research in the human body.
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Affiliation(s)
- Xiangyu Meng
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Beijing 100193, China; (X.M.); (C.X.); (J.L.); (S.Z.); (C.M.)
| | - Chen Xv
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Beijing 100193, China; (X.M.); (C.X.); (J.L.); (S.Z.); (C.M.)
- College of Agronomy and Biotechnology, Southwest University, Chongqing 400715, China
| | - Jiaping Lv
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Beijing 100193, China; (X.M.); (C.X.); (J.L.); (S.Z.); (C.M.)
| | - Shuwen Zhang
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Beijing 100193, China; (X.M.); (C.X.); (J.L.); (S.Z.); (C.M.)
| | - Changlu Ma
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Beijing 100193, China; (X.M.); (C.X.); (J.L.); (S.Z.); (C.M.)
| | - Xiaoyang Pang
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Beijing 100193, China; (X.M.); (C.X.); (J.L.); (S.Z.); (C.M.)
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Hong A, Umar A, Chen H, Yu Z, Huang J. Advances in the study of the interaction between schistosome infections and the host's intestinal microorganisms. Parasit Vectors 2024; 17:185. [PMID: 38600604 PMCID: PMC11007984 DOI: 10.1186/s13071-024-06245-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2024] [Accepted: 03/12/2024] [Indexed: 04/12/2024] Open
Abstract
Schistosomiasis, also called bilharziasis, is a neglected tropical disease induced by schistosomes that infects hundreds of millions of people worldwide. In the life cycle of schistosomiasis, eggs are regarded as the main pathogenic factor, causing granuloma formation in the tissues and organs of hosts, which can cause severe gastrointestinal and liver granulomatous immune responses and irreversible fibrosis. Increasing evidence suggests that the gut microbiome influences the progression of schistosomiasis and plays a central role in liver disease via the gut-liver axis. When used as pharmaceutical supplements or adjunctive therapy, probiotics have shown promising results in preventing, mitigating, and even treating schistosomiasis. This review elucidates the potential mechanisms of this three-way parasite-host-microbiome interaction by summarizing schistosome-mediated intestinal flora disorders, local immune changes, and host metabolic changes, and elaborates the important role of the gut microbiome in liver disease after schistosome infection through the gut-liver axis. Understanding the mechanisms behind this interaction may aid in the discovery of probiotics as novel therapeutic targets and sustainable control strategies for schistosomiasis.
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Affiliation(s)
- Ao Hong
- Department of Parasitology, School of Basic Medical Science, Central South University, Changsha, China
- Human Microbiome and Health Group, Department of Microbiology, School of Basic Medical Science, Central South University, Changsha, Hunan, China
| | - Abdulrahim Umar
- Human Microbiome and Health Group, Department of Microbiology, School of Basic Medical Science, Central South University, Changsha, Hunan, China
| | - Hao Chen
- Department of Parasitology, School of Basic Medical Science, Central South University, Changsha, China
- Human Microbiome and Health Group, Department of Microbiology, School of Basic Medical Science, Central South University, Changsha, Hunan, China
| | - Zheng Yu
- Human Microbiome and Health Group, Department of Microbiology, School of Basic Medical Science, Central South University, Changsha, Hunan, China
- China-Africa Research Center of Infectious Diseases, Central South University, Changsha, Hunan, China
| | - Jing Huang
- Department of Parasitology, School of Basic Medical Science, Central South University, Changsha, China.
- Human Microbiome and Health Group, Department of Microbiology, School of Basic Medical Science, Central South University, Changsha, Hunan, China.
- China-Africa Research Center of Infectious Diseases, Central South University, Changsha, Hunan, China.
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Luo J, Li J, Wang C, Li M, Hu S, Lu K, Wang G. Rubellicoccus peritrichatus gen. nov., sp. nov., isolated from crustose coralline algae in a coral aquarium. Int J Syst Evol Microbiol 2024; 74. [PMID: 38568201 DOI: 10.1099/ijsem.0.006325] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/05/2024] Open
Abstract
A Gram-stain-negative, motile, aerobic, non-spore-forming coccus, designated strain CR14T, was isolated from crustose coralline algae. Cells grew at 20-30 °C (optimum, 25 °C), at pH 6-9 (optimum, pH 7.6) and with NaCl concentrations of 0.5-9 % (w/v; optimum, 2-4 %). Global alignment based on 16S rRNA gene sequences indicated strain CR14T is closest to Ruficoccus amylovorans JCM 31066T with an identity of 92 %. The average nucleotide identity and average amino acid identity values between CR14T and R. amylovorans JCM 31066T were 68.4 and 59.9 %, respectively. Phylogenetic analysis based on 16S rRNA gene sequences indicated that strain CR14T forms an independent branch within the family Cerasicoccaeae, which was consistent with the phylogenomic results. The sole isoprenoid quinone was MK-7. The major fatty acids were C14 : 0, C18 : 1 ω9c, C19 : 0 cyc 9,10 DMA, C16 : 0, and C18 : 2 ω6c. The major cellular polar lipids were phosphatidylethanolamine, phosphatidylglycerol, diphosphatidylglycerol, and two unidentified lipids. The genome DNA G+C content was 48.7 mol%. Based on morphological, physiological and chemotaxonomic characteristics, strain CR14T is suggested to represent a novel species in a new genus, for which the name Rubellicoccus peritrichatus gen. nov., sp. nov. is proposed. The type strain is CR14T (=MCCC 1K03845T=KCTC 72139T).
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Affiliation(s)
- Jixin Luo
- Guangxi Key Laboratory on the Study of Coral Reefs in the South China Sea, Nanning 530004, PR China
- School of Marine Sciences, Guangxi University, Nanning 530004, PR China
| | - Jin Li
- Guangxi Key Laboratory on the Study of Coral Reefs in the South China Sea, Nanning 530004, PR China
- School of Marine Sciences, Guangxi University, Nanning 530004, PR China
| | - Chenyan Wang
- Guangxi Key Laboratory on the Study of Coral Reefs in the South China Sea, Nanning 530004, PR China
- School of Marine Sciences, Guangxi University, Nanning 530004, PR China
| | - Mi Li
- Guangxi Key Laboratory on the Study of Coral Reefs in the South China Sea, Nanning 530004, PR China
- School of Marine Sciences, Guangxi University, Nanning 530004, PR China
| | - Siyu Hu
- Guangxi Key Laboratory on the Study of Coral Reefs in the South China Sea, Nanning 530004, PR China
- School of Marine Sciences, Guangxi University, Nanning 530004, PR China
| | - Kun Lu
- Guangxi Key Laboratory on the Study of Coral Reefs in the South China Sea, Nanning 530004, PR China
- School of Marine Sciences, Guangxi University, Nanning 530004, PR China
| | - Guanghua Wang
- Guangxi Key Laboratory on the Study of Coral Reefs in the South China Sea, Nanning 530004, PR China
- School of Marine Sciences, Guangxi University, Nanning 530004, PR China
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Niu H, Zhou M, Zogona D, Xing Z, Wu T, Chen R, Cui D, Liang F, Xu X. Akkermansia muciniphila: a potential candidate for ameliorating metabolic diseases. Front Immunol 2024; 15:1370658. [PMID: 38571945 PMCID: PMC10987721 DOI: 10.3389/fimmu.2024.1370658] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2024] [Accepted: 03/11/2024] [Indexed: 04/05/2024] Open
Abstract
Metabolic diseases are comprehensive disease based on obesity. Numerous cumulative studies have shown a certain correlation between the fluctuating abundance of Akkermansia muciniphila and the occurrence of metabolic diseases. A. muciniphila, a potential probiotic candidate colonized in the human intestinal mucus layer, and its derivatives have various physiological functions, including treating metabolic disorders and maintaining human health. This review systematically explicates the abundance change rules of A. muciniphila in metabolic diseases. It also details the high efficacy and specific molecules mechanism of A. muciniphila and its derivatives in treating obesity, type 2 diabetes mellitus, cardiovascular disease, and non-alcoholic fatty liver disease.
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Affiliation(s)
- Huifang Niu
- Key Laboratory of Environment Correlative Dietology (Ministry of Education), Hubei Key Laboratory of Fruit Vegetable Processing Quality Control (Huazhong Agricultural University), School of Food Science and Technology, Huazhong Agricultural University, Wuhan, Hubei, China
| | - Minfeng Zhou
- Union Hospital Affiliated to Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Daniel Zogona
- Key Laboratory of Environment Correlative Dietology (Ministry of Education), Hubei Key Laboratory of Fruit Vegetable Processing Quality Control (Huazhong Agricultural University), School of Food Science and Technology, Huazhong Agricultural University, Wuhan, Hubei, China
| | - Zheng Xing
- Key Laboratory of Environment Correlative Dietology (Ministry of Education), Hubei Key Laboratory of Fruit Vegetable Processing Quality Control (Huazhong Agricultural University), School of Food Science and Technology, Huazhong Agricultural University, Wuhan, Hubei, China
| | - Ting Wu
- Key Laboratory of Environment Correlative Dietology (Ministry of Education), Hubei Key Laboratory of Fruit Vegetable Processing Quality Control (Huazhong Agricultural University), School of Food Science and Technology, Huazhong Agricultural University, Wuhan, Hubei, China
| | - Rui Chen
- Union Hospital Affiliated to Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Dandan Cui
- Union Hospital Affiliated to Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Fengxia Liang
- School of Acupuncture and Bone Injury, Hubei University of Chinese Medicine, Wuhan, China
| | - Xiaoyun Xu
- Key Laboratory of Environment Correlative Dietology (Ministry of Education), Hubei Key Laboratory of Fruit Vegetable Processing Quality Control (Huazhong Agricultural University), School of Food Science and Technology, Huazhong Agricultural University, Wuhan, Hubei, China
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Li L, Li M, Chen Y, Yu Z, Cheng P, Yu Z, Cheng W, Zhang W, Wang Z, Gao X, Sun H, Wang X. Function and therapeutic prospects of next-generation probiotic Akkermansia muciniphila in infectious diseases. Front Microbiol 2024; 15:1354447. [PMID: 38384263 PMCID: PMC10880487 DOI: 10.3389/fmicb.2024.1354447] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Accepted: 01/22/2024] [Indexed: 02/23/2024] Open
Abstract
Akkermansia muciniphila is a gram-negative bacterium that colonizes the human gut, making up 3-5% of the human microbiome. A. muciniphila is a promising next-generation probiotic with clinical application prospects. Emerging studies have reported various beneficial effects of A. muciniphila including anti-cancer, delaying aging, reducing inflammation, improving immune function, regulating nervous system function, whereas knowledge on its roles and mechanism in infectious disease is currently unclear. In this review, we summarized the basic characteristics, genome and phenotype diversity, the influence of A. muciniphila and its derived components on infectious diseases, such as sepsis, virus infection, enteric infection, periodontitis and foodborne pathogen induced infections. We also provided updates on mechanisms how A. muciniphila protects intestinal barrier integrity and modulate host immune response. In summary, we believe that A. muciniphila is a promising therapeutic probiotic that may be applied for the treatment of a variety of infectious diseases.
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Affiliation(s)
- Lifeng Li
- Henan International Joint Laboratory of Children’s Infectious Diseases, Department of Neonatology, Children’s Hospital Affiliated to Zhengzhou University, Henan Children’s Hospital, Zhengzhou Children’s Hospital, Zhengzhou, China
| | - Mingchao Li
- Henan International Joint Laboratory of Children’s Infectious Diseases, Department of Neonatology, Children’s Hospital Affiliated to Zhengzhou University, Henan Children’s Hospital, Zhengzhou Children’s Hospital, Zhengzhou, China
| | - Yihua Chen
- Electrical Biology Room, Children’s Hospital Affiliated to Zhengzhou University, Henan Children’s Hospital, Zhengzhou Children’s Hospital, Zhengzhou, China
| | - Zengyuan Yu
- Henan International Joint Laboratory of Children’s Infectious Diseases, Department of Neonatology, Children’s Hospital Affiliated to Zhengzhou University, Henan Children’s Hospital, Zhengzhou Children’s Hospital, Zhengzhou, China
| | - Ping Cheng
- Henan International Joint Laboratory of Children’s Infectious Diseases, Department of Neonatology, Children’s Hospital Affiliated to Zhengzhou University, Henan Children’s Hospital, Zhengzhou Children’s Hospital, Zhengzhou, China
| | - Zhidan Yu
- Henan International Joint Laboratory of Children’s Infectious Diseases, Department of Neonatology, Children’s Hospital Affiliated to Zhengzhou University, Henan Children’s Hospital, Zhengzhou Children’s Hospital, Zhengzhou, China
| | - Weyland Cheng
- Henan International Joint Laboratory of Children’s Infectious Diseases, Department of Neonatology, Children’s Hospital Affiliated to Zhengzhou University, Henan Children’s Hospital, Zhengzhou Children’s Hospital, Zhengzhou, China
| | - Wancun Zhang
- Henan International Joint Laboratory of Children’s Infectious Diseases, Department of Neonatology, Children’s Hospital Affiliated to Zhengzhou University, Henan Children’s Hospital, Zhengzhou Children’s Hospital, Zhengzhou, China
| | - Zhaobao Wang
- Energy-rich Compounds Production by Photosynthetic Carbon Fixation Research Center, Shandong Key Lab of Applied Mycology, College of Life Sciences, Qingdao Agricultural University, Qingdao, China
| | - Xueyan Gao
- Medical Science and Technology Innovation Center, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, China
| | - Huiqing Sun
- Henan International Joint Laboratory of Children’s Infectious Diseases, Department of Neonatology, Children’s Hospital Affiliated to Zhengzhou University, Henan Children’s Hospital, Zhengzhou Children’s Hospital, Zhengzhou, China
| | - Xiaolei Wang
- State Key Laboratory Cultivation Base, Shandong Provincial Key Laboratory of Ophthalmology, Eye Institute of Shandong First Medical University, Qingdao, China
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Zeng SY, Liu YF, Liu JH, Zeng ZL, Xie H, Liu JH. Potential Effects of Akkermansia Muciniphila in Aging and Aging-Related Diseases: Current Evidence and Perspectives. Aging Dis 2023; 14:2015-2027. [PMID: 37199577 PMCID: PMC10676789 DOI: 10.14336/ad.2023.0325] [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: 02/10/2023] [Accepted: 03/25/2023] [Indexed: 05/19/2023] Open
Abstract
Akkermansia muciniphila (A. muciniphila) is an anaerobic bacterium that widely colonizes the mucus layer of the human and animal gut. The role of this symbiotic bacterium in host metabolism, inflammation, and cancer immunotherapy has been extensively investigated over the past 20 years. Recently, a growing number of studies have revealed a link between A. muciniphila, and aging and aging-related diseases (ARDs). Research in this area is gradually shifting from correlation analysis to exploration of causal relationships. Here, we systematically reviewed the association of A. muciniphila with aging and ARDs (including vascular degeneration, neurodegenerative diseases, osteoporosis, chronic kidney disease, and type 2 diabetes). Furthermore, we summarize the potential mechanisms of action of A. muciniphila and offer perspectives for future studies.
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Affiliation(s)
- Shi-Yu Zeng
- Department of Metabolism and Endocrinology, The First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang 421001, Hunan, China.
| | - Yi-Fu Liu
- Department of Urology, The First Affiliated Hospital of Nanchang University, Nanchang 330006, Jiangxi, China.
| | - Jiang-Hua Liu
- Department of Orthopedics, The First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang 421001, Hunan, China.
| | - Zhao-Lin Zeng
- Department of Metabolism and Endocrinology, The First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang 421001, Hunan, China.
| | - Hui Xie
- Department of Orthopedics, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China.
- Movement System Injury and Repair Research Center, Xiangya Hospital, Central South University, Changsha 410008, Hunan, China.
| | - Jiang-Hua Liu
- Department of Metabolism and Endocrinology, The First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang 421001, Hunan, China.
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Lai C, Chen L, Zhong X, Tang Z, Zhang B, Luo Y, Li C, Jin M, Chen X, Li J, Shi Y, Sun Y, Guo L. Long-term effects on liver metabolism induced by ceftriaxone sodium pretreatment. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 335:122238. [PMID: 37506808 DOI: 10.1016/j.envpol.2023.122238] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Revised: 07/16/2023] [Accepted: 07/20/2023] [Indexed: 07/30/2023]
Abstract
Ceftriaxone is an emerging contaminant due to its potential harm, while its effects on liver are still need to be clarified. In this study, we first pretreated the 8-week-old C57BL/6J mice with high dose ceftriaxone sodium (Cef, 400 mg/mL, 0.2 mL per dose) for 8 days to prepare a gut dysbiosis model, then treated with normal feed for a two-month recovery period, and applied non-targeted metabolomics (including lipidomics) to investigate the variations of fecal and liver metabolome, and coupled with targeted determination of fecal short-chain fatty acids (SCFAs) and bile acids (BAs). Lastly, the correlations and mediation analysis between the liver metabolism and gut metabolism/microbes were carried, and the potential mechanisms of the mal-effects on gut-liver axis induced by Cef pretreatment were accordingly discussed. Compared to the control group, Cef pretreatment reduced the rate of weight gain and hepatosomatic index, induced bile duct epithelial cells proliferated around the central vein and appearance of binucleated hepatocytes, decreased the ratio of total branching chains amino acids (BCAAs) to total aromatic amino acids (AAAs) in liver metabolome. In fecal metabolome, the total fecal SCFAs and BAs did not change significantly while butyric acid decreased and the primary BAs increased after Cef pretreatment. Correlation and mediation analysis revealed one potential mechanism that Cef may first change the intestinal microbiota (such as destroying its normal structure, reducing its abundance and the stability of the microbial network or certain microbe abundance like Alistipes), and then change the intestinal metabolism (such as acetate, caproate, propionate), leading to liver metabolic disorder (such as spermidine, inosine, cinnamaldehyde). This study proved the possibility of Cef-induced liver damage, displayed the overall metabolic profile of the liver following Cef pretreatment and provided a theoretical framework for further research into the mechanism of Cef-induced liver damage.
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Affiliation(s)
- Chengze Lai
- The First Dongguan Affiliated Hospital, Guangdong Medical University, Dongguan, China; Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, China
| | - Linkang Chen
- Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, China
| | - Xiaoting Zhong
- Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, China
| | - Zeli Tang
- Department of Pathology, School of Basic Medical Sciences, Guangdong Medical University, Dongguan, China
| | - Bin Zhang
- Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, China
| | - Yu Luo
- Guangzhou Liwan District Center for Disease Control and Prevention, Guangzhou, Guangdong, China
| | - Chengji Li
- Yunfu Disease Control and Prevention Center, Guang Dong Province, China
| | - Mengcheng Jin
- Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, China
| | - Xu Chen
- Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, China
| | - Jinglin Li
- Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, China
| | - Yinying Shi
- Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, China
| | - Yanqin Sun
- Department of Pathology, School of Basic Medical Sciences, Guangdong Medical University, Dongguan, China
| | - Lianxian Guo
- The First Dongguan Affiliated Hospital, Guangdong Medical University, Dongguan, China; Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, China.
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Abbasi A, Bazzaz S, Da Cruz AG, Khorshidian N, Saadat YR, Sabahi S, Ozma MA, Lahouty M, Aslani R, Mortazavian AM. A Critical Review on Akkermansia muciniphila: Functional Mechanisms, Technological Challenges, and Safety Issues. Probiotics Antimicrob Proteins 2023:10.1007/s12602-023-10118-x. [PMID: 37432597 DOI: 10.1007/s12602-023-10118-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/28/2023] [Indexed: 07/12/2023]
Abstract
Due to its physiological benefits from in vitro and in vivo points of view, Akkermansia muciniphila, a common colonizer in the human gut mucous layer, has consistently been identified as an option for the next-generation probiotic. A. muciniphila is a significant bacterium that promotes host physiology. However, it also has a great deal of potential to become a probiotic due to its physiological advantages in a variety of therapeutic circumstances. Therefore, it can be established that the abundance of A. muciniphila in the gut environment, which is controlled by many genetic and dietary variables, is related to the biological behaviors of the intestinal microbiota and gut dysbiosis/eubiosis circumstances. Before A. muciniphila is widely utilized as a next-generation probiotic, regulatory obstacles, the necessity for significant clinical trials, and the sustainability of manufacturing must be eliminated. In this review, the outcomes of recent experimental and clinical reports are comprehensively reviewed, and common colonization patterns, main factors involved in the colonization of A. muciniphila in the gut milieu, their functional mechanisms in establishing homeostasis in the metabolic and energy pathways, the promising delivery role of microencapsulation, potential genetic engineering strategies, and eventually safety issues of A. muciniphila have been discussed.
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Affiliation(s)
- Amin Abbasi
- Student Research Committee, Department of Food Science and Technology, National Nutrition and Food Technology Research Institute, Faculty of Nutrition Science and Food Technology, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Sara Bazzaz
- Department of Food Science and Technology, National Nutrition and Food Technology Research Institute, Faculty of Nutrition Science and Food Technology, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Adriano G Da Cruz
- Department of Food Processing, Federal Institute of Science and Technology Education of Rio de Janeiro (IFRJ) - Campus Maracanã, Rio de Janeiro, Rio de Janeiro, Brazil
| | - Nasim Khorshidian
- Department of Food Science and Technology, National Nutrition and Food Technology Research Institute, Faculty of Nutrition Science and Food Technology, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | | | - Sahar Sabahi
- Department of Nutrition, School of Allied Medical Sciences, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Mahdi Asghari Ozma
- Department of Medical Bacteriology and Virology, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Masoud Lahouty
- Department of Microbiology, Faculty of Medicine, Urmia University of Medical Sciences, Urmia, Iran
| | - Ramin Aslani
- Food Safety and Hygiene Division, Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Amir M Mortazavian
- Department of Food Science and Technology, National Nutrition and Food Technology Research Institute, Faculty of Nutrition Science and Food Technology, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
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Shahin M, Ji B, Dixit PD. EMBED: Essential MicroBiomE Dynamics, a dimensionality reduction approach for longitudinal microbiome studies. NPJ Syst Biol Appl 2023; 9:26. [PMID: 37339950 DOI: 10.1038/s41540-023-00285-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Accepted: 05/23/2023] [Indexed: 06/22/2023] Open
Abstract
Dimensionality reduction offers unique insights into high-dimensional microbiome dynamics by leveraging collective abundance fluctuations of multiple bacteria driven by similar ecological perturbations. However, methods providing lower-dimensional representations of microbiome dynamics both at the community and individual taxa levels are not currently available. To that end, we present EMBED: Essential MicroBiomE Dynamics, a probabilistic nonlinear tensor factorization approach. Like normal mode analysis in structural biophysics, EMBED infers ecological normal modes (ECNs), which represent the unique orthogonal modes capturing the collective behavior of microbial communities. Using multiple real and synthetic datasets, we show that a very small number of ECNs can accurately approximate microbiome dynamics. Inferred ECNs reflect specific ecological behaviors, providing natural templates along which the dynamics of individual bacteria may be partitioned. Moreover, the multi-subject treatment in EMBED systematically identifies subject-specific and universal abundance dynamics that are not detected by traditional approaches. Collectively, these results highlight the utility of EMBED as a versatile dimensionality reduction tool for studies of microbiome dynamics.
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Affiliation(s)
- Mayar Shahin
- Department of Physics, University of Florida, Gainesville, FL, 32611, USA.
| | - Brian Ji
- Physician-Scientist Training Pathway, Department of Medicine, UCSD, San Diego, CA, 92103, USA
| | - Purushottam D Dixit
- Department of Physics, University of Florida, Gainesville, FL, 32611, USA.
- Genetics Institute, University of Florida, Gainesville, FL, 32611, USA.
- Department of Chemical Engineering, University of Florida, Gainesville, FL, 32611, USA.
- Department of Biomedical Engineering, Yale University, New Haven, CT, 06511, USA.
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Lu F, MacPherson CW, Tremblay J, Iskandar MM, Kubow S. Anthocyanin-rich blue potato meals protect against polychlorinated biphenyl-mediated disruption of short-chain fatty acid production and gut microbiota profiles in a simulated human digestion model. Front Nutr 2023; 10:1130841. [PMID: 37324735 PMCID: PMC10266533 DOI: 10.3389/fnut.2023.1130841] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2022] [Accepted: 05/09/2023] [Indexed: 06/17/2023] Open
Abstract
Background Polychlorinated biphenyls (PCBs) are ubiquitous environmental pollutants associated with a wide variety of adverse human health outcomes. PCB 126 and PCB 153 are among the most prevalent congeners associated with human exposure. Emerging studies have suggested that PCB exposure leads to lower gut microbial diversity although their effects on microbial production of health promoting short-chain fatty acids (SCFAs) has been scarcely studied. Blue potatoes are rich in anthocyanins (ACNs), which is a class of polyphenols that promote the growth of beneficial intestinal bacteria such as Bifidobacterium and Lactobacillus and increase the generation of SCFAs. A batch-culture, pH-controlled, stirred system containing human fecal microbial communities was utilized to assess whether human gut microbiota composition and SCFA production are affected by: (a) PCB 126 and PCB 153 exposure; and (b) ACN-rich digests in the presence and absence of the PCB congeners. Methods Anthocyanin-rich blue potato meals (11.03 g) were digested over 12 h with and without PCB 126 (0.5 mM) and PCB 153 (0.5 mM) using an in vitro simulated gut digestion model involving upper gastrointestinal digestion followed by metabolism by human fecal microbiota. Fecal digests were collected for analysis of gut microbial and SCFA profiles. Results Polychlorinated biphenyl-exposed fecal samples showed a significant (p < 0.05) decrease in species richness and a significantly (p < 0.05) different microbial community structure. PCB treatment was associated with an increased (p < 0.05) relative abundance of Akkermansia, Eggerthella, and Bifidobacterium and a decreased (p < 0.05) relative abundance of Veillonella, Streptococcus, and Holdemanella. ACN digests counteracted the altered abundances of Akkermansia and Bifidobacterium seen with the PCB treatment. PCB exposure was associated with a significant (p < 0.05) decrease in total SCFA and acetate concentrations. ACN digests were associated with significantly (p < 0.05) higher SCFA and acetate concentrations in the presence and absence of PCBs. Conclusion Human fecal matter exposed to PCB 126 and PCB 153 led to decreased abundance and altered gut microbiota profiles as well as lowered SCFA and acetate levels. Importantly, this study showed that prebiotic ACN-rich potatoes counteract PCB-mediated disruptions in human gut microbiota profiles and SCFA production.
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Affiliation(s)
- Fang Lu
- School of Human Nutrition, McGill University, Sainte-Anne-de-Bellevue, QC, Canada
| | | | - Julien Tremblay
- Energy, Mining and Environment, National Research Council Canada, Montreal, QC, Canada
| | - Michèle M. Iskandar
- School of Human Nutrition, McGill University, Sainte-Anne-de-Bellevue, QC, Canada
| | - Stan Kubow
- School of Human Nutrition, McGill University, Sainte-Anne-de-Bellevue, QC, Canada
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14
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Qian W, Li M, Yu L, Tian F, Zhao J, Zhai Q. Effects of Taurine on Gut Microbiota Homeostasis: An Evaluation Based on Two Models of Gut Dysbiosis. Biomedicines 2023; 11:biomedicines11041048. [PMID: 37189666 DOI: 10.3390/biomedicines11041048] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2023] [Revised: 03/16/2023] [Accepted: 03/27/2023] [Indexed: 03/31/2023] Open
Abstract
Taurine, an abundant free amino acid, plays multiple roles in the body, including bile acid conjugation, osmoregulation, oxidative stress, and inflammation prevention. Although the relationship between taurine and the gut has been briefly described, the effects of taurine on the reconstitution of intestinal flora homeostasis under conditions of gut dysbiosis and underlying mechanisms remain unclear. This study examined the effects of taurine on the intestinal flora and homeostasis of healthy mice and mice with dysbiosis caused by antibiotic treatment and pathogenic bacterial infections. The results showed that taurine supplementation could significantly regulate intestinal microflora, alter fecal bile acid composition, reverse the decrease in Lactobacillus abundance, boost intestinal immunity in response to antibiotic exposure, resist colonization by Citrobacter rodentium, and enhance the diversity of flora during infection. Our results indicate that taurine has the potential to shape the gut microbiota of mice and positively affect the restoration of intestinal homeostasis. Thus, taurine can be utilized as a targeted regulator to re-establish a normal microenvironment and to treat or prevent gut dysbiosis.
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15
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Jin J, Zhang C, Ren X, Tai B, Xing F. Metagenome Analysis Identifies Microbial Shifts upon Deoxynivalenol Exposure and Post-Exposure Recovery in the Mouse Gut. Toxins (Basel) 2023; 15:243. [PMID: 37104181 PMCID: PMC10142982 DOI: 10.3390/toxins15040243] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2023] [Revised: 03/22/2023] [Accepted: 03/23/2023] [Indexed: 03/29/2023] Open
Abstract
Deoxynivalenol (DON) is one of the most prevalent food-associated mycotoxins, and is known to cause a variety of adverse health effects on human and animals. Upon oral exposure, the intestine is the main target organ of DON. The current study unraveled that DON exposure (2 mg/kg bw/day or 5 mg/kg bw/day) can significantly reshape the gut microbiota in a mouse model. The study characterized the specific gut microbial strains and genes changed after DON exposure and also investigated the recovery of the microbiota upon either 2 weeks daily prebiotic inulin administration or 2 weeks recovery without intervention after termination of DON exposure (spontaneous recovery). The results obtained reveal that DON exposure causes a shift in gut microorganisms, increasing the relative abundance of Akkermansia muciniphila, Bacteroides vulgatus, Hungatella hathewayi, and Lachnospiraceae bacterium 28-4, while the relative abundance of Mucispirillum schaedleri, Pseudoflavonifractor sp. An85, Faecalibacterium prausnitzii, Firmicutes bacterium ASF500, Flavonifractor plautii, Oscillibacter sp. 1-3, and uncultured Flavonifractor sp. decreased. Notably, DON exposure enhanced the prevalence of A. muciniphila, a species considered as a potential prebiotic in previous studies. Most of the gut microbiome altered by DON in the low- and high-dose exposure groups recovered after 2 weeks of spontaneous recovery. Inulin administration appeared to promote the recovery of the gut microbiome and functional genes after low-dose DON exposure, but not after high-dose exposure, at which changes were exacerbated by inulin-supplemented recovery. The results obtained help to better understand the effect of DON on the gut microbiome, and the gut microbiota's recovery upon termination of DON exposure.
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Affiliation(s)
- Jing Jin
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences/Key Laboratory of Agro-Products Quality and Safety Control in Storage and Transport Process, Ministry of Agriculture and Rural Affairs of China, 2 Yuanmingyuan West Road, Haidian District, Beijing 100193, China
- Division of Toxicology, Wageningen University and Research, Stippeneng 4, 6708 WE Wageningen, The Netherlands
| | - Chen Zhang
- Laboratory of Microbiology, Wageningen University and Research, Stippeneng 4, 6708 WE Wageningen, The Netherlands
| | - Xiaoxu Ren
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences/Key Laboratory of Agro-Products Quality and Safety Control in Storage and Transport Process, Ministry of Agriculture and Rural Affairs of China, 2 Yuanmingyuan West Road, Haidian District, Beijing 100193, China
| | - Bowen Tai
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences/Key Laboratory of Agro-Products Quality and Safety Control in Storage and Transport Process, Ministry of Agriculture and Rural Affairs of China, 2 Yuanmingyuan West Road, Haidian District, Beijing 100193, China
| | - Fuguo Xing
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences/Key Laboratory of Agro-Products Quality and Safety Control in Storage and Transport Process, Ministry of Agriculture and Rural Affairs of China, 2 Yuanmingyuan West Road, Haidian District, Beijing 100193, China
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Rymer TL, Pillay N. The effects of antibiotics and illness on gut microbial composition in the fawn-footed mosaic-tailed rat (Melomys cervinipes). PLoS One 2023; 18:e0281533. [PMID: 36827295 PMCID: PMC9956021 DOI: 10.1371/journal.pone.0281533] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2022] [Accepted: 01/25/2023] [Indexed: 02/25/2023] Open
Abstract
The gut microbiota are critical for maintaining the health and physiological function of individuals. However, illness and treatment with antibiotics can disrupt bacterial community composition, the consequences of which are largely unknown in wild animals. In this study, we described and quantified the changes in bacterial community composition in response to illness and treatment with antibiotics in a native Australian rodent, the fawn-footed mosaic-tailed rat (Melomys cervinipes). We collected faecal samples during an undiagnosed illness outbreak in a captive colony of animals, and again at least one year later, and quantified the microbiome at each time point using 16s ribosomal rRNA gene sequencing. Gut bacterial composition was quantified at different taxonomic levels, up to family. Gut bacterial composition changed between time periods, indicating that illness, treatment with antibiotics, or a combination affects bacterial communities. While some bacterial groups increased in abundance, others decreased, suggesting differential effects and possible co-adapted and synergistic interactions. Our findings provide a greater understanding of the dynamic nature of the gut microbiome of a native Australian rodent species and provides insights into the management and ethical well-being of animals kept under captive conditions.
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Affiliation(s)
- Tasmin L. Rymer
- College of Science and Engineering, James Cook University, Cairns, Queensland, Australia
- Centre for Tropical Environmental and Sustainability Sciences, James Cook University, Queensland, Australia
- School of Animal, Plant and Environmental Sciences, University of the Witwatersrand, Johannesburg, South Africa
- * E-mail:
| | - Neville Pillay
- School of Animal, Plant and Environmental Sciences, University of the Witwatersrand, Johannesburg, South Africa
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Hou F, Tang J, Liu Y, Tan Y, Wang Y, Zheng L, Liang D, Lin Y, Wang L, Pan Z, Yang R, Bi Y, Zhi F. Safety Evaluation and Probiotic Potency Screening of Akkermansia muciniphila Strains Isolated from Human Feces and Breast Milk. Microbiol Spectr 2023; 11:e0336122. [PMID: 36786638 PMCID: PMC10103750 DOI: 10.1128/spectrum.03361-22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Accepted: 01/18/2023] [Indexed: 02/15/2023] Open
Abstract
Akkermansia muciniphila is considered a next-generation probiotic because of its immense potential to regulate disorders. We isolated 31 strains of A. muciniphila from feces or breast milk of healthy people. After genome sequencing, assembly, and analysis, we selected six strains (AM01 to AM06) for further exploration. We first analyzed their general characteristics, including morphological description, growth characteristics, and physiological and biochemical characteristics, and then confirmed their genetic characteristics, including GC content, putative virulence factors, and antibiotic resistance genes. We next investigated the tolerance of these strains to artificial gastric and intestinal fluids and bile salts to evaluate their survival potential in the digestive tract. Drug sensitivity tests were also conducted based on the analysis of the antibiotic resistance genes of these strains. Furthermore, we examined the genetic stability and acute toxicity of two strains (AM02 and AM06) in mice. Finally, the safety of AM06 was evaluated in normal mice and nude mice. AM06 exhibited adaptability to pH changes. Since AM02 and AM03 showed more resistance to antibiotics than AM01 and AM04 to AM06, their potential clinical application may be limited. Both AM02 and AM06 were genetically and phenotypically stable and safe in normal mice, and AM06 was safe in nude mice. Considering all this together, AM06 is a safe A. muciniphila strain and exhibits a great potential for use as a probiotic strain among the isolated strains. IMPORTANCE In this study, we isolated 30 strains of Akkermansia muciniphila from different samples of human feces, and for the first time we isolated an A. muciniphila strain from human breast milk. This isolation verified the existence of microbes in human breast milk, which suggests that A. muciniphila can be vertically propagated from mother to infant and participates in the formation of the early gut microbiome. We then systematically evaluated the potential for use as a probiotic of this A. muciniphila strains according to the FAO/WHO recommendation. We confirmed that the AM06 strain isolated from breast milk has no virulence factors and is genetically stable and nonpathogenic for both normal mice and nude mice. Moreover, its tolerance to pH changes and bile salts indicates its desirable probiotic properties. Thus, we propose that the AM06 strain of A. muciniphila is safe for use as a probiotic candidate.
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Affiliation(s)
- Fengyi Hou
- Guangdong Provincial Key Laboratory of Gastroenterology, Department of Gastroenterology, Institute of Gastroenterology of Guangdong Province, Nanfang Hospital, Southern Medical University, Guangzhou, China
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, China
| | - Jingyi Tang
- Guangdong Provincial Key Laboratory of Gastroenterology, Department of Gastroenterology, Institute of Gastroenterology of Guangdong Province, Nanfang Hospital, Southern Medical University, Guangzhou, China
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, China
| | - Yangyang Liu
- Guangzhou ZhiYi Biotechnology Co., Ltd., Guangzhou, China
| | - Yafang Tan
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, China
| | - Ye Wang
- Guangzhou ZhiYi Biotechnology Co., Ltd., Guangzhou, China
| | - Lijun Zheng
- Guangzhou ZhiYi Biotechnology Co., Ltd., Guangzhou, China
| | - Debao Liang
- Guangzhou ZhiYi Biotechnology Co., Ltd., Guangzhou, China
| | - Yuqing Lin
- Guangzhou ZhiYi Biotechnology Co., Ltd., Guangzhou, China
| | - Likun Wang
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, China
| | - Zhiyuan Pan
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, China
| | - Ruifu Yang
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, China
| | - Yujing Bi
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, China
| | - Fachao Zhi
- Guangdong Provincial Key Laboratory of Gastroenterology, Department of Gastroenterology, Institute of Gastroenterology of Guangdong Province, Nanfang Hospital, Southern Medical University, Guangzhou, China
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Zheng M, Han R, Yuan Y, Xing Y, Zhang W, Sun Z, Liu Y, Li J, Mao T. The role of Akkermansia muciniphila in inflammatory bowel disease: Current knowledge and perspectives. Front Immunol 2023; 13:1089600. [PMID: 36685588 PMCID: PMC9853388 DOI: 10.3389/fimmu.2022.1089600] [Citation(s) in RCA: 16] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2022] [Accepted: 12/20/2022] [Indexed: 01/08/2023] Open
Abstract
Inflammatory bowel diseases, including Crohn's disease and ulcerative colitis, is a chronic relapsing gastrointestinal inflammatory disease mediated by dysregulated immune responses to resident intestinal microbiota. Current conventional approaches including aminosalicylates, corticosteroids, immunosuppressive agents, and biological therapies are focused on reducing intestinal inflammation besides inducing and maintaining disease remission, and managing complications. However, these therapies are not curative and are associated with various limitations, such as drug resistance, low responsiveness and adverse events. Recent accumulated evidence has revealed the involvement of mucin-degrading bacterium Akkermansia muciniphila (A. muciniphila) in the regulation of host barrier function and immune response, and how reduced intestinal colonisation of probiotic A. muciniphila can contribute to the process and development of inflammatory bowel diseases, suggesting that it may be a potential target and promising strategy for the therapy of inflammatory bowel disease. In this review, we summarise the current knowledge of the role of A. muciniphila in IBD, especially focusing on the related mechanisms, as well as the strategies based on supplementation with A. muciniphila, probiotics and prebiotics, natural diets, drugs, and herbs to promote its colonisation in the gut, and holds promise for A. muciniphila-targeted and -based therapies in the treatment of inflammatory bowel disease.
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Affiliation(s)
| | - Ran Han
- Dongfang Hospital, Beijing University of Chinese Medicine, Beijing, China
| | - Yali Yuan
- Dongfang Hospital, Beijing University of Chinese Medicine, Beijing, China
| | - Yunqi Xing
- Dongfang Hospital, Beijing University of Chinese Medicine, Beijing, China
| | - Wenji Zhang
- Dongfang Hospital, Beijing University of Chinese Medicine, Beijing, China
| | | | - Yuyue Liu
- Dongfang Hospital, Beijing University of Chinese Medicine, Beijing, China
| | - Junxiang Li
- Dongfang Hospital, Beijing University of Chinese Medicine, Beijing, China,*Correspondence: Junxiang Li, ; Tangyou Mao,
| | - Tangyou Mao
- Dongfang Hospital, Beijing University of Chinese Medicine, Beijing, China,*Correspondence: Junxiang Li, ; Tangyou Mao,
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Ghotaslou R, Nabizadeh E, Memar MY, Law WMH, Ozma MA, Abdi M, Yekani M, Kadkhoda H, hosseinpour R, Bafadam S, Ghotaslou A, Leylabadlo HE, Nezhadi J. The metabolic, protective, and immune functions of Akkermansia muciniphila. Microbiol Res 2023; 266:127245. [DOI: 10.1016/j.micres.2022.127245] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Revised: 10/25/2022] [Accepted: 10/25/2022] [Indexed: 11/07/2022]
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20
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Mezhibovsky E, Wu Y, Bawagan FG, Tveter KM, Szeto S, Roopchand D. Impact of grape polyphenols on Akkermansia muciniphila and the gut barrier. AIMS Microbiol 2022; 8:544-565. [PMID: 36694591 PMCID: PMC9834079 DOI: 10.3934/microbiol.2022035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2022] [Revised: 12/16/2022] [Accepted: 12/17/2022] [Indexed: 12/29/2022] Open
Abstract
A healthy gastrointestinal tract functions as a highly selective barrier, allowing the absorption of nutrients and metabolites while preventing gut bacteria and other xenobiotic compounds from entering host circulation and tissues. The intestinal epithelium and intestinal mucus provide a physical first line of defense against resident microbes, pathogens and xenotoxic compounds. Prior studies have indicated that the gut microbe Akkermansia muciniphila, a mucin-metabolizer, can stimulate intestinal mucin thickness to improve gut barrier integrity. Grape polyphenol (GP) extracts rich in B-type proanthocyanidin (PAC) compounds have been found to increase the relative abundance of A. muciniphila, suggesting that PACs alter the gut microbiota to support a healthy gut barrier. To further investigate the effect of GPs on the gut barrier and A. muciniphila, male C57BL/6 mice were fed a high-fat diet (HFD) or low-fat diet (LFD) with or without 1% GPs (HFD-GP, LFD-GP) for 12 weeks. Compared to the mice fed unsupplemented diets, GP-supplemented mice showed increased relative abundance of fecal and cecal A. muciniphila, a reduction in total bacteria, a diminished colon mucus layer and increased fecal mucus content. GP supplementation also reduced the presence of goblet cells regardless of dietary fat. Compared to the HFD group, ileal gene expression of lipopolysaccharide (LPS)-binding protein (Lbp), an acute-phase protein that promotes pro-inflammatory cytokine expression, was reduced in the HFD-GP group, suggesting reduced LPS in circulation. Despite depletion of the colonic mucus layer, markers of inflammation (Ifng, Il1b, Tnfa, and Nos2) were similar among the four groups, with the exception that ileal Il6 mRNA levels were lower in the LFD-GP group compared to the LFD group. Our findings suggest that the GP-induced increase in A. muciniphila promotes redistribution of the intestinal mucus layer to the intestinal lumen, and that the GP-induced decrease in total bacteria results in a less inflammatory intestinal milieu.
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Affiliation(s)
- Esther Mezhibovsky
- Rutgers, The State University of New Jersey, Department of Food Science, Institute for Food Nutrition and Health [Center for Microbiome, Nutrition and Health & Rutgers Center for Lipid Research], 61 Dudley Road, New Brunswick, NJ 08901, USA
- Rutgers, The State University of New Jersey, Department of Nutritional Sciences Graduate Program, New Brunswick, NJ 08901, USA
| | - Yue Wu
- Rutgers, The State University of New Jersey, Department of Food Science, Institute for Food Nutrition and Health [Center for Microbiome, Nutrition and Health & Rutgers Center for Lipid Research], 61 Dudley Road, New Brunswick, NJ 08901, USA
| | - Fiona G. Bawagan
- Rutgers, The State University of New Jersey, Department of Food Science, Institute for Food Nutrition and Health [Center for Microbiome, Nutrition and Health & Rutgers Center for Lipid Research], 61 Dudley Road, New Brunswick, NJ 08901, USA
| | - Kevin M. Tveter
- Rutgers, The State University of New Jersey, Department of Food Science, Institute for Food Nutrition and Health [Center for Microbiome, Nutrition and Health & Rutgers Center for Lipid Research], 61 Dudley Road, New Brunswick, NJ 08901, USA
| | - Samantha Szeto
- Rutgers, The State University of New Jersey, Department of Food Science, Institute for Food Nutrition and Health [Center for Microbiome, Nutrition and Health & Rutgers Center for Lipid Research], 61 Dudley Road, New Brunswick, NJ 08901, USA
| | - Diana Roopchand
- Rutgers, The State University of New Jersey, Department of Food Science, Institute for Food Nutrition and Health [Center for Microbiome, Nutrition and Health & Rutgers Center for Lipid Research], 61 Dudley Road, New Brunswick, NJ 08901, USA
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21
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Polyphenols as Drivers of a Homeostatic Gut Microecology and Immuno-Metabolic Traits of Akkermansia muciniphila: From Mouse to Man. Int J Mol Sci 2022; 24:ijms24010045. [PMID: 36613488 PMCID: PMC9820369 DOI: 10.3390/ijms24010045] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Revised: 12/12/2022] [Accepted: 12/14/2022] [Indexed: 12/24/2022] Open
Abstract
Akkermansia muciniphila is a mucosal symbiont considered a gut microbial marker in healthy individuals, as its relative abundance is significantly reduced in subjects with gut inflammation and metabolic disturbances. Dietary polyphenols can distinctly stimulate the relative abundance of A. muciniphila, contributing to the attenuation of several diseases, including obesity, type 2 diabetes, inflammatory bowel diseases, and liver damage. However, mechanistic insight into how polyphenols stimulate A. muciniphila or its activity is limited. This review focuses on dietary interventions in rodents and humans and in vitro studies using different phenolic classes. We provide critical insights with respect to potential mechanisms explaining the effects of polyphenols affecting A. muciniphila. Anthocyanins, flavan-3-ols, flavonols, flavanones, stilbenes, and phenolic acids are shown to increase relative A. muciniphila levels in vivo, whereas lignans exert the opposite effect. Clinical trials show consistent findings, and high intervariability relying on the gut microbiota composition at the baseline and the presence of multiple polyphenol degraders appear to be cardinal determinants in inducing A. muciniphila and associated benefits by polyphenol intake. Polyphenols signal to the AhR receptor and impact the relative abundance of A. muciniphila in a direct and indirect fashion, resulting in the restoration of intestinal epithelial integrity and homeostatic crosstalk with the gut microbiota by affecting IL-22 production. Moreover, recent evidence suggests that A. muciniphila participates in the initial hydrolysis of some polyphenols but does not participate in their complete metabolism. In conclusion, the consumption of polyphenol-rich foods targeting A. muciniphila as a pivotal intermediary represents a promising precision nutritional therapy to prevent and attenuate metabolic and inflammatory diseases.
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22
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Filardi R, Gargari G, Mora D, Arioli S. Characterization of antibiotic-resistance traits in Akkermansia muciniphila strains of human origin. Sci Rep 2022; 12:19426. [PMID: 36371559 PMCID: PMC9653403 DOI: 10.1038/s41598-022-23980-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2022] [Accepted: 11/08/2022] [Indexed: 11/13/2022] Open
Abstract
Akkermansia muciniphila, a commensal bacterium commonly found in healthy gut microbiota, is widely considered a next-generation beneficial bacterium candidate to improve metabolic and inflammatory disorders. Recently the EFSA's Panel on Nutrition, Novel food, and Food Allergens has declared that pasteurized A. muciniphila DSM 22959T (also MucT, ATCC BAA-835) can be considered safe as a novel food, opening the door to its commercialization as a food supplement. Despite its recognized health benefits, there is still little information regarding the antimicrobial susceptibility of this species and reference cut-off values to distinguish strains with intrinsic or acquired resistance from susceptible strains. In this study, we combined a genomic approach with the evaluation of the antibiotic susceptibility in five human A. muciniphila isolates. Genomic mining for antimicrobial resistance genes and MICs determinations revealed that only one strain harboring tetW gene showed resistance to tetracycline, whereas all A. muciniphila strains showed low sensitivity to ciprofloxacin and aminoglycosides with no genotypic correlation. Although all strains harbor the gene adeF, encoding for a subunit of the resistance-nodulation-cell division efflux pump system, potentially involved in ciprofloxacin resistance, the susceptibility towards ciprofloxacin determined in presence of efflux pump inhibitors was not affected. Overall, our outcomes revealed the importance to extend the antibiotic susceptibility test to a larger number of new isolates of A. muciniphila to better assess the safety aspects of this species.
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Affiliation(s)
- Rossella Filardi
- grid.4708.b0000 0004 1757 2822Department of Food Environmental and Nutritional Sciences (DeFENS), University of Milan, Via Celoria 2, 20133 Milan, Italy
| | - Giorgio Gargari
- grid.4708.b0000 0004 1757 2822Department of Food Environmental and Nutritional Sciences (DeFENS), University of Milan, Via Celoria 2, 20133 Milan, Italy
| | - Diego Mora
- grid.4708.b0000 0004 1757 2822Department of Food Environmental and Nutritional Sciences (DeFENS), University of Milan, Via Celoria 2, 20133 Milan, Italy
| | - Stefania Arioli
- grid.4708.b0000 0004 1757 2822Department of Food Environmental and Nutritional Sciences (DeFENS), University of Milan, Via Celoria 2, 20133 Milan, Italy
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23
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Rational consideration of Akkermansia muciniphila targeting intestinal health: advantages and challenges. NPJ Biofilms Microbiomes 2022; 8:81. [PMID: 36253412 PMCID: PMC9576740 DOI: 10.1038/s41522-022-00338-4] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2022] [Accepted: 09/20/2022] [Indexed: 11/09/2022] Open
Abstract
As one of the promising next-generation probiotics (NGPs), Akkermansia muciniphila, a well-known mucin-degrading bacterium, has been proven to be closely related to the metabolic diseases of its human host. However, the role of A. muciniphila in the host’s intestinal health remains ambiguous. Here, we comprehensively summarize and discuss the characteristics, the distribution, and the colonization of A. muciniphila in the human gastrointestinal tract (GIT). We propose that the application of A. muciniphila as a biomarker for longevity, for diagnostics and prognostics of intestinal diseases, or for intestinal health should be cautiously considered. Precise dietary regulation can mediate the treatment of intestinal diseases by altering the abundance of A. muciniphila. Although the beneficial role of A. muciniphila and its component in intestinal inflammation has been discovered, in gnotobiotic mice with specific gut microbiota, certain genotype, and colorectal cancer, or in animal models infected with a specific pathogen, A. muciniphila may be related to the occurrence and development of intestinal diseases. Genomic analysis, emphasizing the strain-level phylogenetic differences of A. muciniphila, indicates that a clear description and discussion of each strain is critical before its practical application. Our review provides much needed insight for the precise application of A. muciniphila.
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24
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Gut Microbiota, the Potential Biological Medicine for Prevention, Intervention and Drug Sensitization to Fight Diseases. Nutrients 2022; 14:nu14204220. [PMID: 36296908 PMCID: PMC9610464 DOI: 10.3390/nu14204220] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2022] [Revised: 10/04/2022] [Accepted: 10/05/2022] [Indexed: 11/17/2022] Open
Abstract
As the largest “immune organ” of human beings, the gut microbiota is symbiotic and mutually beneficial with the human host, playing multiple physiological functions. Studies have long shown that dysbiosis of gut microbiota is associated with almost all human diseases, mainly including type II diabetes, cancers, neurodegenerative diseases, autism spectrum disorder, and kidney diseases. As a novel and potential biological medicine for disease prevention, intervention and drug sensitization, the gut microbiota has attracted more and more attention recently. Although the gut microbiota is a comprehensive microbial community, several star bacteria have emerged as possible tools to fight against various diseases. This review aims to elucidate the relevance of gut microbiota dysbiosis with disease occurrence and progression, and mainly summarizes four well-known genera with therapeutic and sensitizing potential, Akkermansia, Bifidobacterium, Lactobacillus and Parabacteroides, thoroughly elucidate their potential value as biological drugs to treat diverse disease.
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25
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Periplanetaamericana Extract Pretreatment Alleviates Oxidative Stress and Inflammation and Increases the Abundance of Gut Akkermansia muciniphila in Diquat-Induced Mice. Antioxidants (Basel) 2022; 11:antiox11091806. [PMID: 36139880 PMCID: PMC9495987 DOI: 10.3390/antiox11091806] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2022] [Revised: 09/08/2022] [Accepted: 09/09/2022] [Indexed: 11/17/2022] Open
Abstract
Studies have shown that Periplaneta americana extract (PAE) has good therapeutic effects in inflammatory disorders such as ulcerative colitis, alcoholic hepatitis, and gastric ulcers. However, whether or not PAE has good pre-protective effects has not been widely and deeply studied. In this study, we investigated the effects of PAE pretreatment for 7 days on oxidative stress and inflammation triggered by oxidative stress by using diquat-induced C57BL/6 mice as an oxidative stress model. The results showed that PAE pretreatment could significantly reduce oxidative stress in the intestine and liver by reducing the production of MDA, and improved antioxidant systems (SOD, CAT, GSH, and T-AOC). By primarily activating the anti-inflammatory cytokine (IL-10) mediated JAK1/STAT3 signaling pathway, PAE also effectively reduced oxidative stress-induced liver inflammation while also reducing liver damage, as evidenced by the reductions in serum AST and ALT. PAE pretreatment also had a significant effect on maintaining the intestinal barrier function, which was manifested by inhibiting a decrease in the expression of tight junction proteins (ZO-1 and occludin), and reducing the increased intestinal permeability (serum DAO and D-Lac) caused by diquat. The 16S rRNA sequencing analysis revealed that diquat decreased the gut microbiota diversity index and increased the abundance of pathogenic bacteria (e.g., Allobaculum, Providencia and Escherichia-Shigella), while PAE pretreatment responded to diquat-induced damage by greatly increasing the abundance of Akkermansia muciniphila. These findings elucidate potential pre-protective mechanisms of PAE in alleviating oxidative stress and inflammation, while providing a direction for the treatment of metabolic diseases by utilizing PAE to enhance the abundance of gut A. muciniphila.
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26
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Systematic evaluation of antimicrobial food preservatives on glucose metabolism and gut microbiota in healthy mice. NPJ Sci Food 2022; 6:42. [PMID: 36100593 PMCID: PMC9470552 DOI: 10.1038/s41538-022-00158-y] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Accepted: 08/31/2022] [Indexed: 11/25/2022] Open
Abstract
Certain antimicrobial preservatives (APs) have been shown to perturb gut microbiota. So far, it is not yet fully known that whether similar effects are observable for a more diverse set of APs. It also remains elusive if biogenic APs are superior to synthetic APs in terms of safety. To help fill these knowledge gaps, the effects of eleven commonly used synthetic and biogenic APs on the gut microbiota and glucose metabolism were evaluated in the wild-type healthy mice. Here, we found that APs induced glucose intolerance and perturbed gut microbiota, irrespective of their origin. In addition, biogenic APs are not always safer than synthetic ones. The biogenic AP nisin unexpectedly induced the most significant effects, which might be partially mediated by glucagon-like peptide 1 related glucoregulatory hormones secretion perturbation.
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27
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Antioxidant and Antibacterial Effects of Potential Probiotics Isolated from Korean Fermented Foods. Int J Mol Sci 2022; 23:ijms231710062. [PMID: 36077456 PMCID: PMC9455991 DOI: 10.3390/ijms231710062] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Revised: 08/26/2022] [Accepted: 08/30/2022] [Indexed: 11/25/2022] Open
Abstract
A total of sixteen bacterial strains were isolated and identified from the fourteen types of Korean fermented foods that were evaluated for their in vitro probiotic potentials. The results showed the highest survivability for Bacillus sp. compared to Lactobacillus sp. in simulated gastric pH, and it was found to be maximum for B. inaquosorum KNUAS016 (8.25 ± 0.08 log10 CFU/mL) and minimum for L. sakei KNUAS019 (0.8 ± 0.02 log10 CFU/mL) at 3 h of incubation. Furthermore, B. inaquosorum KNUAS016 and L. brevis KNUAS017 also had the highest survival rates of 6.86 ± 0.02 and 5.37 ± 0.01 log10 CFU/mL, respectively, in a simulated intestinal fluid condition at 4 h of incubation. The percentage of autoaggregation at 6 h for L. sakei KNUAS019 (66.55 ± 0.33%), B. tequilensis KNUAS015 (64.56 ± 0.14%), and B. inaquosorum KNUAS016 (61.63 ± 0.19%) was >60%, whereas it was lower for L. brevis KNUAS017 (29.98 ± 0.09%). Additionally, B. subtilis KNUAS003 showed higher coaggregation at 63.84 ± 0.19% while B. proteolyticus KNUAS001 found at 30.02 ± 0.33%. Among them, Lactobacillus sp. showed the best non-hemolytic activity. The highest DPPH and ABTS radical scavenging activity was observed in L. sakei KNUAS019 (58.25% and 71.88%). The cell-free supernatant of Lactobacillus sp. considerably inhibited pathogenic growth, while the cell-free supernatant of Bacillus sp. was moderately inhibited when incubated for 24 h. However, the overall results found that B. subtilis KNUAS003, B. proteolyticus KNUAS012, L. brevis KNUAS017, L. graminis KNUAS018, and L. sakei KNUAS019 were recognized as potential probiotics through different functional and toxicity assessments.
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28
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Noureldein M, Nawfal R, Bitar S, Maxwell SS, Khurana I, Kassouf HK, Khuri FR, El-Osta A, Eid AA. Intestinal microbiota regulates diabetes and cancer progression by IL-1β and NOX4 dependent signaling cascades. Cell Mol Life Sci 2022; 79:502. [PMID: 36040503 DOI: 10.1007/s00018-022-04485-x] [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: 02/19/2022] [Revised: 06/21/2022] [Accepted: 07/12/2022] [Indexed: 11/03/2022]
Abstract
Diabetes changes the host microbiota, a condition known as dysbiosis. Dysbiosis is an important factor for the pathogenesis of diabetes and colorectal cancer (CRC). We aimed at identifying the microbial signature associated with diabetes and CRC; and identifying the signaling mechanism altered by dysbiosis and leading to CRC progression in diabetes. MKR mice that can spontaneously develop type 2 diabetes were used. For CRC induction, another subset of mice was treated with azoxymethane and dextran sulfate sodium. To identify the role of microbiota, microbiota-depleted mice were inoculated with fecal microbial transplant from diabetic and CRC mice. Further, a mouse group was treated with probiotics. At the end of the treatment, 16S rRNA sequencing was performed to identify microbiota in the fecal samples. Blood was collected, and colons were harvested for molecular, anatomical, and histological analysis. Our results show that diabetes is associated with a microbial signature characterized by reduction of butyrate-forming bacteria. This dysbiosis is associated with gastrointestinal complications reflected by a reduction in colon lengths. These changes are reversed upon treatment with probiotics, which rectified the observed dysbiosis. Inoculation of control mice with diabetic or cancer microbiota resulted in the development of increased number of polyps. Our data also show that inflammatory cytokines (mainly interleukin (IL)-1β) and NADPH oxidase (NOX)4 are over-expressed in the colon tissues of diabetic mice. Collectively our data suggest that diabetes is associated with dysbiosis characterized by lower abundance of butyrate-forming bacteria leading to over-expression of IL-1β and NOX4 leading to gastrointestinal complications and CRC.
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Affiliation(s)
- Mohamed Noureldein
- Department of Anatomy, Cell Biology and Physiological Sciences, Faculty of Medicine and Medical Center, American University of Beirut, Bliss Street, 11-0236, Riad El-Solh, Beirut, 1107-2020, Lebanon.,AUB Diabetes, Faculty of Medicine and Medical Center, American University of Beirut, Beirut, Lebanon
| | - Rashad Nawfal
- Department of Anatomy, Cell Biology and Physiological Sciences, Faculty of Medicine and Medical Center, American University of Beirut, Bliss Street, 11-0236, Riad El-Solh, Beirut, 1107-2020, Lebanon.,AUB Diabetes, Faculty of Medicine and Medical Center, American University of Beirut, Beirut, Lebanon
| | - Sara Bitar
- Department of Anatomy, Cell Biology and Physiological Sciences, Faculty of Medicine and Medical Center, American University of Beirut, Bliss Street, 11-0236, Riad El-Solh, Beirut, 1107-2020, Lebanon.,AUB Diabetes, Faculty of Medicine and Medical Center, American University of Beirut, Beirut, Lebanon
| | - Scott S Maxwell
- Epigenetics in Human Health and Disease, Department of Diabetes, Central Clinical School, Monash University, Melbourne, VIC, 3004, Australia
| | - Ishant Khurana
- Epigenetics in Human Health and Disease, Department of Diabetes, Central Clinical School, Monash University, Melbourne, VIC, 3004, Australia
| | - Hala Kfoury Kassouf
- Department of Pathology, Faculty of Medicine and Medical Center, American University of Beirut, Beirut, Lebanon
| | - Fadlo R Khuri
- Department of Internal Medicine, Faculty of Medicine and Medical Center, American University of Beirut, Beirut, Lebanon
| | - Assam El-Osta
- Epigenetics in Human Health and Disease, Department of Diabetes, Central Clinical School, Monash University, Melbourne, VIC, 3004, Australia.,Hong Kong Institute of Diabetes and Obesity, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong, China
| | - Assaad A Eid
- Department of Anatomy, Cell Biology and Physiological Sciences, Faculty of Medicine and Medical Center, American University of Beirut, Bliss Street, 11-0236, Riad El-Solh, Beirut, 1107-2020, Lebanon. .,AUB Diabetes, Faculty of Medicine and Medical Center, American University of Beirut, Beirut, Lebanon.
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29
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Recent findings in Akkermansia muciniphila-regulated metabolism and its role in intestinal diseases. Clin Nutr 2022; 41:2333-2344. [DOI: 10.1016/j.clnu.2022.08.029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Revised: 07/22/2022] [Accepted: 08/27/2022] [Indexed: 11/22/2022]
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30
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Medina-Larqué AS, Rodríguez-Daza MC, Roquim M, Dudonné S, Pilon G, Levy É, Marette A, Roy D, Jacques H, Desjardins Y. Cranberry polyphenols and agave agavins impact gut immune response and microbiota composition while improving gut barrier function, inflammation, and glucose metabolism in mice fed an obesogenic diet. Front Immunol 2022; 13:871080. [PMID: 36052065 PMCID: PMC9424773 DOI: 10.3389/fimmu.2022.871080] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Accepted: 07/20/2022] [Indexed: 11/29/2022] Open
Abstract
The consumption of plant-based bioactive compounds modulates the gut microbiota and interacts with the innate and adaptive immune responses associated with metabolic disorders. The present study aimed to evaluate the effect of cranberry polyphenols (CP), rich in flavonoids, and agavins (AG), a highly branched agave-derived neo-fructans, on cardiometabolic response, gut microbiota composition, metabolic endotoxemia, and mucosal immunomodulation of C57BL6 male mice fed an obesogenic high-fat and high-sucrose (HFHS) diet for 9 weeks. Interestingly, CP+AG-fed mice had improved glucose homeostasis. Oral supplementation with CP selectively and robustly (five-fold) increases the relative abundance of Akkermansia muciniphila, a beneficial bacteria associated with metabolic health. AG, either alone or combined with CP (CP+AG), mainly stimulated the glycan-degrading bacteria Muribaculum intestinale, Faecalibaculum rodentium, Bacteroides uniformis, and Bacteroides acidifaciens. This increase of glycan-degrading bacteria was consistent with a significantly increased level of butyrate in obese mice receiving AG, as compared to untreated counterparts. CP+AG-supplemented HFHS-fed mice had significantly lower levels of plasma LBP than HFHS-fed controls, suggesting blunted metabolic endotoxemia and improved intestinal barrier function. Gut microbiota and derived metabolites interact with the immunological factors to improve intestinal epithelium barrier function. Oral administration of CP and AG to obese mice contributed to dampen the pro-inflammatory immune response through different signaling pathways. CP and AG, alone or combined, increased toll-like receptor (TLR)-2 (Tlr2) expression, while decreasing the expression of interleukin 1ß (ILß1) in obese mice. Moreover, AG selectively promoted the anti-inflammatory marker Foxp3, while CP increased the expression of NOD-like receptor family pyrin domain containing 6 (Nlrp6) inflammasome. The intestinal immune system was also shaped by dietary factor recognition. Indeed, the combination of CP+AG significantly increased the expression of aryl hydrocarbon receptors (Ahr). Altogether, both CP and AG can shape gut microbiota composition and regulate key mucosal markers involved in the repair of epithelial barrier integrity, thereby attenuating obesity-associated gut dysbiosis and metabolic inflammation and improving glucose homeostasis.
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Affiliation(s)
- Ana-Sofía Medina-Larqué
- Institute of Nutrition and Functional Foods (INAF), Laval University, Québec, QC, Canada
- School of Nutrition, Faculty of Agriculture and Food Sciences, Laval University, Québec, QC, Canada
| | - María-Carolina Rodríguez-Daza
- Institute of Nutrition and Functional Foods (INAF), Laval University, Québec, QC, Canada
- Department of Food Science, Faculté des sciences de l’agriculture et de l’alimentation (FSAA), Laval University, Québec, QC, Canada
- Laboratory of Microbiology, Wageningen University & Research, Wageningen, Netherlands
| | - Marcela Roquim
- Institute of Nutrition and Functional Foods (INAF), Laval University, Québec, QC, Canada
| | - Stéphanie Dudonné
- Institute of Nutrition and Functional Foods (INAF), Laval University, Québec, QC, Canada
- Department of Plant Science, FSAA, Laval University, Québec, QC, Canada
| | - Geneviève Pilon
- Institute of Nutrition and Functional Foods (INAF), Laval University, Québec, QC, Canada
- Department of Medicine, Faculty of Medicine, Cardiology Axis of Quebec Heart and Lung Institute, Laval University, Québec, QC, Canada
| | - Émile Levy
- Institute of Nutrition and Functional Foods (INAF), Laval University, Québec, QC, Canada
- Research Centre, Sainte- Justine Hospital, Montreal, QC, Canada
| | - André Marette
- Institute of Nutrition and Functional Foods (INAF), Laval University, Québec, QC, Canada
- Department of Medicine, Faculty of Medicine, Cardiology Axis of Quebec Heart and Lung Institute, Laval University, Québec, QC, Canada
| | - Denis Roy
- Institute of Nutrition and Functional Foods (INAF), Laval University, Québec, QC, Canada
- Department of Food Science, Faculté des sciences de l’agriculture et de l’alimentation (FSAA), Laval University, Québec, QC, Canada
| | - Hélène Jacques
- Institute of Nutrition and Functional Foods (INAF), Laval University, Québec, QC, Canada
- School of Nutrition, Faculty of Agriculture and Food Sciences, Laval University, Québec, QC, Canada
| | - Yves Desjardins
- Institute of Nutrition and Functional Foods (INAF), Laval University, Québec, QC, Canada
- Department of Plant Science, FSAA, Laval University, Québec, QC, Canada
- *Correspondence: Yves Desjardins,
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31
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Zhang Q, Li J, Wang G, Wang L, Zhang Z, Fang Z, Lin Y, Xu S, Feng B, Zhuo Y, Hua L, Jiang X, Zhao X, Wu D, Che L. The replacement of bacitracin methylene disalicylate with Bacillus subtilis PB6 in the diet of male Cherry Valley Ducks reduces the feed conversion ratio by improving intestinal health and modulating gut microbiota. Poult Sci 2022; 101:102155. [PMID: 36155883 PMCID: PMC9519614 DOI: 10.1016/j.psj.2022.102155] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2022] [Revised: 07/31/2022] [Accepted: 08/21/2022] [Indexed: 12/05/2022] Open
Abstract
In this study, we compared the impacts of Bacillus subtilis PB6 (BS) and bacitracin methylene disalicylate (BMD) on the growth performance, intestinal morphology, expression of tight connection protein, and cecal microbiota community of male ducks through a 42-d trial. Three-hundred and sixty male Cherry Valley meat-type ducklings (1-day-old) were distributed into 3 groups of 6 replicates: CON group (control, basal diet), BMD group (basal diet + 45 mg/kg BMD, active ingredient dose in the feed), and BS group (basal diet + 2 × 107 CFU/kg BS in the feed). Results showed that supplementing the diet with BS reduced the average daily feed intake (ADFI) during d 15 to 42 and d 1 to 42 compared with the CON group (P = 0.032). It also reduced feed conversion ratio (FCR) during d 15 to 42 and d 1 to 42 (P < 0.05) relative to the other groups. The ileal villus height (VH) and villus height /crypt depth ratio (V/C) were increased (P < 0.05) in both the BS and BMD groups, and the jejunal VH and V/C ratio were increased in the BS group (P < 0.05). Relative to the CON, BS supplementation was associated with numerical augmentation of goblet cells in the jejunal mucosa and upregulation of jejunal zonula occludens (ZO-1) and ileal mucin2 (P < 0.05) mRNA levels. Analysis showed a negative correlation between FCR (d 0–42) and VH, V/C, and the number of goblet cells in the jejunum (P < 0.05). Additionally, BMD or BS supplementation altered the alpha diversity of colonic microbiota (P < 0.05). Correlation analysis revealed that Butyricimonas, Enterobacteriaceae, Clostridiaceae, and Tannerellaceae were positively associated with the acetic acid and butyrate concentrations (P < 0.05). Taken together, the supplementation of BS in the diet of male ducks was conducive to reducing FCR by meliorating intestinal morphology, upregulating ZO-1 and mucin2 mRNA levels, regulating the abundance of microbiota, and metabolites, and having a greater effect than BMD supplementation.
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Affiliation(s)
- Qianqian Zhang
- Key Laboratory of Animal Disease-Resistant Nutrition of Sichuan Province, Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu 611130, China
| | - Jian Li
- Key Laboratory of Animal Disease-Resistant Nutrition of Sichuan Province, Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu 611130, China.
| | - Guixiang Wang
- Key Laboratory of Animal Disease-Resistant Nutrition of Sichuan Province, Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu 611130, China
| | - Lizhi Wang
- Kemin (China) Technologies Co., Ltd., Zhuhai, China
| | | | - Zhengfeng Fang
- Key Laboratory of Animal Disease-Resistant Nutrition of Sichuan Province, Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu 611130, China
| | - Yan Lin
- Key Laboratory of Animal Disease-Resistant Nutrition of Sichuan Province, Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu 611130, China
| | - Shengyu Xu
- Key Laboratory of Animal Disease-Resistant Nutrition of Sichuan Province, Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu 611130, China
| | - Bin Feng
- Key Laboratory of Animal Disease-Resistant Nutrition of Sichuan Province, Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu 611130, China
| | - Yong Zhuo
- Key Laboratory of Animal Disease-Resistant Nutrition of Sichuan Province, Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu 611130, China
| | - Lun Hua
- Key Laboratory of Animal Disease-Resistant Nutrition of Sichuan Province, Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu 611130, China
| | - Xuemei Jiang
- Key Laboratory of Animal Disease-Resistant Nutrition of Sichuan Province, Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu 611130, China
| | - Xilun Zhao
- Key Laboratory of Animal Disease-Resistant Nutrition of Sichuan Province, Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu 611130, China
| | - De Wu
- Key Laboratory of Animal Disease-Resistant Nutrition of Sichuan Province, Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu 611130, China
| | - Lianqiang Che
- Key Laboratory of Animal Disease-Resistant Nutrition of Sichuan Province, Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu 611130, China
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Machado D, Barbosa JC, Almeida D, Andrade JC, Freitas AC, Gomes AM. Insights into the Antimicrobial Resistance Profile of a Next Generation Probiotic Akkermansia muciniphila DSM 22959. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:ijerph19159152. [PMID: 35954507 PMCID: PMC9367757 DOI: 10.3390/ijerph19159152] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Revised: 07/20/2022] [Accepted: 07/25/2022] [Indexed: 02/05/2023]
Abstract
Akkermansia muciniphila is a Gram-negative intestinal anaerobic bacterium recently proposed as a novel probiotic candidate to be incorporated in food and pharmaceutical forms. Despite its multiple health benefits, the data addressing its antimicrobial susceptibility profile remain scarce. However, the absence of acquired resistance in probiotic strains is a compulsory criterion for its approval in the qualified presumption of safety list. This study aimed at characterizing the A. muciniphila DSM 22959 strain’s antimicrobial susceptibility profile using phenotypic and in silico approaches. To establish the phenotypic antimicrobial susceptibility profile of this strain, minimum inhibitory concentrations of eight antimicrobials were determined using broth microdilution and E-test methods. Additionally, the A. muciniphila DSM 22959 genome was screened using available databases and bioinformatics tools to identify putative antimicrobial resistance genes (ARG), virulence factors (VF), genomic islands (GI), and mobile genetic elements (MGE). The same categorization was obtained for both phenotypic methods. Resistance phenotype was observed for gentamicin, kanamycin, streptomycin, and ciprofloxacin, which was supported by the genomic context. No evidence was found of horizontal acquisition or potential transferability of the identified ARG and VF. Thus, this study provides new insights regarding the phenotypic and genotypic antimicrobial susceptibility profiles of the probiotic candidate A. muciniphila DSM 22959.
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Affiliation(s)
- Daniela Machado
- CBQF—Centro de Biotecnologia e Química Fina, Laboratório Associado, Escola Superior de Biotecnologia, Universidade Católica Portuguesa, Rua Diogo Botelho 1327, 4169-005 Porto, Portugal; (D.M.); (J.C.B.); (D.A.); (A.C.F.); (A.M.G.)
| | - Joana Cristina Barbosa
- CBQF—Centro de Biotecnologia e Química Fina, Laboratório Associado, Escola Superior de Biotecnologia, Universidade Católica Portuguesa, Rua Diogo Botelho 1327, 4169-005 Porto, Portugal; (D.M.); (J.C.B.); (D.A.); (A.C.F.); (A.M.G.)
| | - Diana Almeida
- CBQF—Centro de Biotecnologia e Química Fina, Laboratório Associado, Escola Superior de Biotecnologia, Universidade Católica Portuguesa, Rua Diogo Botelho 1327, 4169-005 Porto, Portugal; (D.M.); (J.C.B.); (D.A.); (A.C.F.); (A.M.G.)
| | - José Carlos Andrade
- TOXRUN—Toxicology Research Unit, University Institute of Health Sciences, CESPU, CRL, 4585-116 Gandra, Portugal
- Correspondence:
| | - Ana Cristina Freitas
- CBQF—Centro de Biotecnologia e Química Fina, Laboratório Associado, Escola Superior de Biotecnologia, Universidade Católica Portuguesa, Rua Diogo Botelho 1327, 4169-005 Porto, Portugal; (D.M.); (J.C.B.); (D.A.); (A.C.F.); (A.M.G.)
| | - Ana Maria Gomes
- CBQF—Centro de Biotecnologia e Química Fina, Laboratório Associado, Escola Superior de Biotecnologia, Universidade Católica Portuguesa, Rua Diogo Botelho 1327, 4169-005 Porto, Portugal; (D.M.); (J.C.B.); (D.A.); (A.C.F.); (A.M.G.)
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Hamilton AM, Sampson TR. Traumatic spinal cord injury and the contributions of the post-injury microbiome. INTERNATIONAL REVIEW OF NEUROBIOLOGY 2022; 167:251-290. [PMID: 36427958 DOI: 10.1016/bs.irn.2022.06.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Spinal cord injuries are an enormous burden on injured individuals and their caregivers. The pathophysiological effects of injury are not limited to the spine and limb function, but affect numerous body systems. Growing observations in human studies and experimental models suggest that the gut microbiome is altered following spinal cord injury. Given the importance of signals derived from the gut microbiome for host physiology, it is possible that injury-triggered dysbiosis subsequently affects aspects of recovery. Here, we review emerging literature on the role of the microbiome following spinal cord injury. Specifically, we highlight findings from both human and experimental studies that correlate taxonomic changes to aspects of injury recovery. Examination of both observational and emerging interventional studies supports the notion that future therapeutic avenues for spinal cord injury pathologies may lie at the interface of the host and indigenous microbes.
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Affiliation(s)
- Adam M Hamilton
- Department of Cell Biology, Emory University School of Medicine, Atlanta, GA, United States
| | - Timothy R Sampson
- Department of Cell Biology, Emory University School of Medicine, Atlanta, GA, United States.
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Grenda A, Iwan E, Chmielewska I, Krawczyk P, Giza A, Bomba A, Frąk M, Rolska A, Szczyrek M, Kieszko R, Kucharczyk T, Jarosz B, Wasyl D, Milanowski J. Presence of Akkermansiaceae in gut microbiome and immunotherapy effectiveness in patients with advanced non-small cell lung cancer. AMB Express 2022; 12:86. [PMID: 35792976 PMCID: PMC9259768 DOI: 10.1186/s13568-022-01428-4] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Accepted: 06/26/2022] [Indexed: 02/06/2023] Open
Abstract
The significance of Akkermansia bacteria presence in gut micobiome, mainly Akkermansia mucinifila, is currently being investigated in the context of supporting therapy and marker for response to immunotherapy in cancer patients. It is indicated that patients with non-small cell lung cancer (NSCLC) treated with immune checkpoint inhibitors (ICIs) respond better to treatment if this bacterium is present in the intestine. We performed next-generation sequencing of the gut microbiome from patients treated in the first or second line therapy with anti-PD-1 (anti-programmed death 1) or anti-PD-L1 (anti-programmed death ligand 1) monoclonal antibodies. In our study group of 47 NSCLC patients, the percentage of Akkermansiaceae was higher in patients with disease stabilization and with partial response to immunotherapy compared to patients with disease progression. Moreover, we found that a higher percentage of Akkermansiaceae was present in patients with squamous cell carcinoma compared to adenocarcinoma. Our study showed that Akkermansiaceae could be supporting marker for response to immunotherapies in NSCLC patients, nonetheless further in-depth studies should be conducted in the role of Akkermansiaceae in cancer immunotherapy. Composition of the microbiome can influence patients response to immunotherapy Response to immunotherapy of NSCLC patients is associated with the presence of Akkermansiaceae in the gut Akkermansia could be used as a predictor for patient treated with immunological checkpoint inhibitors
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35
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Local Delivery of Streptomycin in Microcontainers Facilitates Colonization of Streptomycin-Resistant Escherichia coli in the Rat Colon. Appl Environ Microbiol 2022; 88:e0073422. [PMID: 35758759 PMCID: PMC9317935 DOI: 10.1128/aem.00734-22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
Abstract
Oral antibiotic treatment is often applied in animal studies in order to allow establishment of an introduced antibiotic-resistant bacterium in the gut. Here, we compared the application of streptomycin dosed orally in microcontainers to dosage through drinking water. The selective effect on a resistant bacterial strain, as well as the effects on fecal, luminal, and mucosal microbiota composition, were investigated. Three groups of rats (n = 10 per group) were orally dosed with microcontainers daily for 3 days. One of these groups (STR-M) received streptomycin-loaded microcontainers designed for release in the distal ileum, while the other two groups (controls [CTR] and STR-W) received empty microcontainers. The STR-W group was additionally dosed with streptomycin through the drinking water. A streptomycin-resistant Escherichia coli strain was orally inoculated into all animals. Three days after inoculation, the resistant E. coli was found only in the cecum and colon of animals receiving streptomycin in microcontainers but in all intestinal compartments of animals receiving streptomycin in the drinking water. 16S rRNA amplicon sequencing revealed significant changes in the fecal microbiota of both groups of streptomycin-treated animals. Investigation of the inner colonic mucus layer by confocal laser scanning microscopy and laser capture microdissection revealed no significant effect of streptomycin treatment on the mucus-inhabiting microbiota or on E. coli encroachment into the inner mucus. Streptomycin-loaded microcontainers thus enhanced proliferation of an introduced streptomycin-resistant E. coli in the cecum and colon without affecting the small intestine environment. While improvements of the drug delivery system are needed to facilitate optimal local concentration and release of streptomycin, the application of microcontainers provides new prospects for antibiotic treatment. IMPORTANCE Delivery of antibiotics in microcontainer devices designed for release at specific sites of the gut represents a novel approach which might reduce the amount of antibiotic needed to obtain a local selective effect. We propose that the application of microcontainers may have the potential to open novel opportunities for antibiotic treatment of humans and animals with fewer side effects on nontarget bacterial populations. In the current study, we therefore elucidated the effects of streptomycin, delivered in microcontainers coated with pH-sensitive lids, on the selective effect on a resistant bacterium, as well as on the surrounding intestinal microbiota in rats.
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36
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Yue C, Chu C, Zhao J, Zhang H, Chen W, Zhai Q. Dietary strategies to promote the abundance of intestinal Akkermansia muciniphila, a focus on the effect of plant extracts. J Funct Foods 2022. [DOI: 10.1016/j.jff.2022.105093] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
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37
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Borbet TC, Pawline MB, Zhang X, Wipperman MF, Reuter S, Maher T, Li J, Iizumi T, Gao Z, Daniele M, Taube C, Koralov SB, Müller A, Blaser MJ. Influence of the early-life gut microbiota on the immune responses to an inhaled allergen. Mucosal Immunol 2022; 15:1000-1011. [PMID: 35842561 PMCID: PMC9835105 DOI: 10.1038/s41385-022-00544-5] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2021] [Revised: 06/04/2022] [Accepted: 06/15/2022] [Indexed: 02/04/2023]
Abstract
Antibiotics, among the most used medications in children, affect gut microbiome communities and metabolic functions. These changes in microbiota structure can impact host immunity. We hypothesized that early-life microbiome alterations would lead to increased susceptibility to allergy and asthma. To test this, mouse pups between postnatal days 5-9 were orally exposed to water (control) or to therapeutic doses of azithromycin or amoxicillin. Later in life, these mice were sensitized and challenged with a model allergen, house dust mite (HDM), or saline. Mice with early-life azithromycin exposure that were challenged with HDM had increased IgE and IL-13 production by CD4+ T cells compared to unexposed mice; early-life amoxicillin exposure led to fewer abnormalities. To test that the microbiota contained the immunological cues to alter IgE and cytokine production after HDM challenge, germ-free mice were gavaged with fecal samples of the antibiotic-perturbed microbiota. Gavage of adult germ-free mice did not result in altered HDM responses, however, their offspring, which acquired the antibiotic-perturbed microbiota at birth showed elevated IgE levels and CD4+ cytokines in response to HDM, and altered airway reactivity. These studies indicate that early-life microbiota composition can heighten allergen-driven Th2/Th17 immune pathways and airway responses in an age-dependent manner.
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Affiliation(s)
- Timothy C. Borbet
- Department of Pathology, New York University School of Medicine, New York, NY USA
| | - Miranda B. Pawline
- Department of Pathology, New York University School of Medicine, New York, NY USA
| | - Xiaozhou Zhang
- Institute of Molecular Cancer Research, University of Zurich, Zurich, Switzerland
| | - Matthew F. Wipperman
- Immunology Program, Sloan Kettering Institute, New York, USA,Clinical and Translational Science Center, Weill Cornell Medicine, New York, New York, USA
| | - Sebastian Reuter
- Department of Pulmonary Medicine, University Hospital Essen – Ruhrlandklinik, Essen, Germany
| | - Timothy Maher
- Department of Pathology, New York University School of Medicine, New York, NY USA
| | - Jackie Li
- Department of Pathology, New York University School of Medicine, New York, NY USA
| | - Tadasu Iizumi
- Department of Pathology, New York University School of Medicine, New York, NY USA,Center for Advanced Biotechnology and Medicine, Rutgers University, New Brunswick, NJ, USA
| | - Zhan Gao
- Center for Advanced Biotechnology and Medicine, Rutgers University, New Brunswick, NJ, USA
| | - Megan Daniele
- Department of Pathology, New York University School of Medicine, New York, NY USA,Department of Pediatrics, New York Presbyterian/Morgan Stanley Children’s Hospital and Columbia University Irving Medical Center, New York, NY USA
| | - Christian Taube
- Immunology Program, Sloan Kettering Institute, New York, USA
| | - Sergei B. Koralov
- Department of Pathology, New York University School of Medicine, New York, NY USA
| | - Anne Müller
- Institute of Molecular Cancer Research, University of Zurich, Zurich, Switzerland,Corresponding Authors: Martin J. Blaser, , Center for Advanced Biotechnology and Medicine, Rutgers University, 679 Hoes Lane West, Room 106A, Piscataway, NJ 08854, Tel: 848-445-9834, Fax: 732-235-5318, Anne Müller, , Universität Zürich, Institut für Molekulare Krebsforschung, Winterthurerstrasse 190, CH 8057 Zürich, Tel: +41 44 635 34 74, Fax: +41 44 635 3484
| | - Martin J. Blaser
- Center for Advanced Biotechnology and Medicine, Rutgers University, New Brunswick, NJ, USA,Corresponding Authors: Martin J. Blaser, , Center for Advanced Biotechnology and Medicine, Rutgers University, 679 Hoes Lane West, Room 106A, Piscataway, NJ 08854, Tel: 848-445-9834, Fax: 732-235-5318, Anne Müller, , Universität Zürich, Institut für Molekulare Krebsforschung, Winterthurerstrasse 190, CH 8057 Zürich, Tel: +41 44 635 34 74, Fax: +41 44 635 3484
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38
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Niu H, Feng XZ, Shi CW, Zhang D, Chen HL, Huang HB, Jiang YL, Wang JZ, Cao X, Wang N, Zeng Y, Yang GL, Yang WT, Wang CF. Gut Bacterial Composition and Functional Potential of Tibetan Pigs Under Semi-Grazing. Front Microbiol 2022; 13:850687. [PMID: 35464912 PMCID: PMC9023118 DOI: 10.3389/fmicb.2022.850687] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2022] [Accepted: 02/10/2022] [Indexed: 12/28/2022] Open
Abstract
Gut bacterial community plays a key role in maintaining host health. The Tibetan pig (Sus scrofa), an ancient breed in China, has been known for its high adaptability to harsh environments and for its meat quality. To understand the underlying mechanisms facilitating to shape these unique features, in this study, 16S rRNA sequencing using pigs feces and subsequent bacterial functional prediction were performed. Also, the gut bacteria of two other breeds of pigs, Barkshire and Landrace, were examined for comparison. It was revealed that the structure of bacterial community in Tibetan pigs appeared to be more complex; the relative abundances of dominant bacterial families varied inversely with those of the other pigs, and the proportion of Firmicutes in Tibetan pigs was lower, but Bacteroides, Fibrobacterota, Lachnospiraceae, Oscillospiraceae, and Ruminococcaceae were higher. Bacterial functional prediction revealed that the dominant flora in the Tibetan pigs was more correlated with functions regulating the hosts’ immune and inflammatory responses, such as NOD-like_receptor_signaling_pathway and vitamin metabolism. In addition, in Tibetan pigs, the taxonomic relationships in the gut bacteria on day 350 were closer than those on earlier stages. Furthermore, gender played a role in the composition and function of bacterial inhabitants in the gut; for boars, they were more correlated to drug resistance and xenobiotics metabolism of the host compared to the sows. In sum, our preliminary study on the gut bacterial composition of the Tibetan pigs provided an insight into the underlying host–microorganism interactions, emphasizing the role of intestinal bacteria in the context of modulating the host’s immune system and host development.
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Li P, Li M, Song Y, Huang X, Wu T, Xu ZZ, Lu H. Green Banana Flour Contributes to Gut Microbiota Recovery and Improves Colonic Barrier Integrity in Mice Following Antibiotic Perturbation. Front Nutr 2022; 9:832848. [PMID: 35369097 PMCID: PMC8964434 DOI: 10.3389/fnut.2022.832848] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Accepted: 02/07/2022] [Indexed: 12/12/2022] Open
Abstract
Green banana flour (GBF) is rich in resistant starch that has been used as a prebiotic to exert beneficial effects on gut microbiota. In this study, GBF was evaluated for its capacity to restore gut microbiota and intestinal barrier integrity from antibiotics (Abx) perturbation by comparing it to natural recovery (NR) treatment. C57B/L 6 J mice were exposed to 3 mg ciprofloxacin and 3.5 mg metronidazole once a day for 2 weeks to induce gut microbiota dysbiosis model. Then, GBF intervention at the dose of 400 mg/kg body weight was conducted for 2 weeks. The results showed that mice treated with Abx displayed increased gut permeability and intestinal barrier disruption, which were restored more quickly with GBF than NR treatment by increasing the secretion of mucin. Moreover, GBF treatment enriched beneficial Bacteroidales S24-7, Lachnospiraceae, Bacteroidaceae, and Porphyromonadaceae that accelerated the imbalanced gut microbiota restoration to its original state. This study puts forward novel insights into the application of GBF as a functional food ingredient to repair gut microbiota from Abx perturbation.
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Affiliation(s)
- Ping Li
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, China
| | - Ming Li
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, China
| | - Ying Song
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, China
| | - Xiaochang Huang
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, China
| | - Tao Wu
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, China
| | - Zhenjiang Zech Xu
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, China
| | - Hui Lu
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, China
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40
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Wang L, Yao H, Tong T, Lau K, Leung SY, Ho JWK, Leung WK. Dynamic changes in antibiotic resistance genes and gut microbiota after Helicobacter pylori eradication therapies. Helicobacter 2022; 27:e12871. [PMID: 34969161 DOI: 10.1111/hel.12871] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/11/2021] [Revised: 12/08/2021] [Accepted: 12/14/2021] [Indexed: 12/19/2022]
Abstract
BACKGROUND Short-term antibiotics exposure is associated with alterations in microbiota and antibiotic resistance genes (ARGs) in the human gut. While antibiotics are critical in the successful eradication of Helicobacter pylori, the short-term and long-term impacts on the composition and quantity of antibiotics resistance genes after H. pylori eradication are unclear. This study used whole-genome shotgun metagenomic of stool samples to characterize the gut microbiota and ARGs, before and after H. pylori eradication therapy. RESULTS Forty-four H. pylori-infected patients were recruited, including 21 treatment naïve patients who received clarithromycin-based triple therapy (CLA group) and 23 patients who failed previous therapies, in which 10 received levofloxacin-based quadruple therapy (LEVO group) and 13 received other combinations (OTHER group). Stool samples were collected at baseline (before current treatment), 6 week and 6 month after eradication therapy. At baseline, there was only a slight difference among the three groups on ARGs and gut microbiota. After eradication therapy, there was a transient but significant increase in gut ARGs 6 week post-therapy, among which the LEVO group had the most significant ARGs alteration compared to other two groups. For treatment naïve patients, those with higher ErmF abundance were prone to fail CLA eradication and gain more ARGs after treatment. For gut microbiota, the bacteria richness decreased at 6 week and there was a significant difference in microbiota community among the three groups at 6 week. CONCLUSIONS Our findings demonstrated the dynamic alterations in gut microbiota and ARGs induced by different eradication therapies, which could influence the choices of antibiotics in eradication therapy.
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Affiliation(s)
- Lingling Wang
- Department of Medicine, The University of Hong Kong, Hong Kong, China
| | - Haobin Yao
- School of Biomedical Science, The University of Hong Kong, Hong Kong, China.,Laboratory of Data Discovery for Health, Hong Kong Science Park, Hong Kong, China
| | - Teresa Tong
- Department of Medicine, The University of Hong Kong, Hong Kong, China
| | - KamShing Lau
- Department of Medicine, The University of Hong Kong, Hong Kong, China
| | - Suet Yi Leung
- Centre for PanorOmic Sciences (CPOS), The University of Hong Kong, Hong Kong, China.,Department of Pathology, Queen Mary Hospital, The University of Hong Kong, Hong Kong, China.,The Jockey Club Centre for Clinical Innovation and Discovery, LKS Faculty of Medicine, The University of Hong Kong, Hong Kong, China
| | - Joshua W K Ho
- School of Biomedical Science, The University of Hong Kong, Hong Kong, China.,Laboratory of Data Discovery for Health, Hong Kong Science Park, Hong Kong, China.,Centre for PanorOmic Sciences (CPOS), The University of Hong Kong, Hong Kong, China
| | - Wai K Leung
- Department of Medicine, The University of Hong Kong, Hong Kong, China
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41
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Ghaffari S, Abbasi A, Somi MH, Moaddab SY, Nikniaz L, Kafil HS, Ebrahimzadeh Leylabadlo H. Akkermansia muciniphila: from its critical role in human health to strategies for promoting its abundance in human gut microbiome. Crit Rev Food Sci Nutr 2022; 63:7357-7377. [PMID: 35238258 DOI: 10.1080/10408398.2022.2045894] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Akkermansia muciniphila, a frequent colonizer in the gut mucous layer of individuals, has constantly been recognized as a promising candidate for the next generation of probiotics due to its biological advantages from in vitro and in vivo investigations. This manuscript comprehensively reviewed the features of A. muciniphila in terms of its function in host physiology and frequently utilized nutrition using the published peer-reviewed articles, which should present valuable and critical information to scientists, engineers, and even the general population. A. muciniphila is an important bacterium that shows host physiology. However, its physiological advantages in several clinical settings also have excellent potential to become a probiotic. Consequently, it can be stated that there is a coherent and direct relation between the biological activities of the gut microbiota, intestinal dysbiosis/eubiosis, and the population of A. muciniphila in the gut milieu, which is influenced by various genetical and nutritional factors. Current regulatory barriers, the need for large-scale clinical trials, and the feasibility of production must be removed before A muciniphila can be extensively used as a next-generation probiotic.
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Affiliation(s)
- Sima Ghaffari
- Liver and Gastrointestinal Diseases Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Amin Abbasi
- Student Research Committee, Department of Food Science and Technology, National Nutrition and Food Technology Research Institute, Faculty of Nutrition Science and Food Technology, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mohammad Hossein Somi
- Liver and Gastrointestinal Diseases Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Seyed Yaghoub Moaddab
- Liver and Gastrointestinal Diseases Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Leila Nikniaz
- Tabriz Health Services Management Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Hossein Samadi Kafil
- Drug Applied Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
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Ty M, Taha-Abdelaziz K, Demey V, Castex M, Sharif S, Parkinson J. Performance of distinct microbial based solutions in a Campylobacter infection challenge model in poultry. Anim Microbiome 2022; 4:2. [PMID: 34980288 PMCID: PMC8722297 DOI: 10.1186/s42523-021-00157-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2021] [Accepted: 12/15/2021] [Indexed: 01/04/2023] Open
Abstract
BACKGROUND Antibiotic growth promoters (AGPs) are commonly used within poultry production to improve feed conversion, bird growth, and reduce morbidity and mortality from clinical and subclinical diseases. Due to the association between AGP usage and rising antimicrobial resistance, the industry has explored new strategies including the use of probiotics and other microbial-based interventions to promote the development of a healthy microbiome in birds and mitigate against infections associated with food safety and food security. While previous studies have largely focused on the ability of probiotics to protect against Clostridium perfringens and Salmonella enterica, much less is known concerning their impact on Campylobacter jejuni, a near commensal of the chicken gut microbiome that nevertheless is a major cause of food poisoning in humans. RESULTS Here we compare the efficacy of four microbial interventions (two single strain probiotics, the bacterium-Pediococcus acidilactici, and the yeast-Saccharomyces cerevisiae boulardii; and two complex, competitive exclusion, consortia-Aviguard and CEL) to bacitracin, a commonly used AGP, to modulate chicken gut microbiota and subsequently impact C. jejuni infection in poultry. Cecal samples were harvested at 30- and 39-days post hatch to assess Campylobacter burden and examine their impact on the gut microbiota. While the different treatments did not significantly decrease C. jejuni burden relative to the untreated controls, both complex consortia resulted in significant decreases relative to treatment with bacitracin. Analysis of 16S rDNA profiles revealed a distinct microbial signature associated with each microbial intervention. For example, treatment with Aviguard and CEL increased the relative abundance of Bacteroidaceae and Rikenellaceae respectively. Furthermore, Aviguard promoted a less complex microbial community compared to other treatments. CONCLUSIONS Depending upon the individual needs of the producer, our results illustrate the potential of each microbial interventions to serve flock-specific requirements.
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Affiliation(s)
- Maxine Ty
- Department of Biochemistry, University of Toronto, Toronto, ON, Canada.,Program in Molecular Medicine, Hospital for Sick Children, Peter Gilgan Center for Research and Learning, 686 Bay Street, Toronto, ON, M5G 0A4, Canada
| | - Khaled Taha-Abdelaziz
- Animal and Veterinary Sciences Department, Clemson University, Clemson, SC, 29634, USA
| | | | | | - Shayan Sharif
- Department of Pathobiology, Ontario Veterinary College, University of Guelph, Guelph, ON, N1G 2W, Canada
| | - John Parkinson
- Department of Biochemistry, University of Toronto, Toronto, ON, Canada. .,Program in Molecular Medicine, Hospital for Sick Children, Peter Gilgan Center for Research and Learning, 686 Bay Street, Toronto, ON, M5G 0A4, Canada. .,Department of Molecular Genetics, University of Toronto, Toronto, ON, Canada.
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43
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Acharya KD, Friedline RH, Ward DV, Graham ME, Tauer L, Zheng D, Hu X, de Vos WM, McCormick BA, Kim JK, Tetel MJ. Differential effects of Akkermansia-enriched fecal microbiota transplant on energy balance in female mice on high-fat diet. Front Endocrinol (Lausanne) 2022; 13:1010806. [PMID: 36387852 PMCID: PMC9647077 DOI: 10.3389/fendo.2022.1010806] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/03/2022] [Accepted: 10/12/2022] [Indexed: 11/13/2022] Open
Abstract
Estrogens protect against weight gain and metabolic disruption in women and female rodents. Aberrations in the gut microbiota composition are linked to obesity and metabolic disorders. Furthermore, estrogen-mediated protection against diet-induced metabolic disruption is associated with modifications in gut microbiota. In this study, we tested if estradiol (E2)-mediated protection against obesity and metabolic disorders in female mice is dependent on gut microbiota. Specifically, we tested if fecal microbiota transplantation (FMT) from E2-treated lean female mice, supplemented with or without Akkermansia muciniphila, prevented high fat diet (HFD)-induced body weight gain, fat mass gain, and hyperglycemia in female recipients. FMT from, and cohousing with, E2-treated lean donors was not sufficient to transfer the metabolic benefits to the E2-deficient female recipients. Moreover, FMT from lean donors supplemented with A. muciniphila exacerbated HFD-induced hyperglycemia in E2-deficient recipients, suggesting its detrimental effect on the metabolic health of E2-deficient female rodents fed a HFD. Given that A. muciniphila attenuates HFD-induced metabolic insults in males, the present findings suggest a sex difference in the impact of this microbe on metabolic health.
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Affiliation(s)
- Kalpana D. Acharya
- Neuroscience Department, Wellesley College, Wellesley, MA, United States
| | | | - Doyle V. Ward
- Center for Microbiome Research, Department of Microbiology and Physiological Systems, University of Massachusetts Chan Medical School, Worcester, MA, United States
- University of Massachusetts Chan Medical School, Worcester, MA, United States
| | - Madeline E. Graham
- Neuroscience Department, Wellesley College, Wellesley, MA, United States
| | - Lauren Tauer
- University of Massachusetts Chan Medical School, Worcester, MA, United States
| | - Doris Zheng
- University of Massachusetts Chan Medical School, Worcester, MA, United States
| | - Xiaodi Hu
- University of Massachusetts Chan Medical School, Worcester, MA, United States
| | - Willem M. de Vos
- Laboratory of Microbiology, Wageningen University, Wageningen, Netherlands
- University of Helsinki, Helsinki, Finland
| | - Beth A. McCormick
- Center for Microbiome Research, Department of Microbiology and Physiological Systems, University of Massachusetts Chan Medical School, Worcester, MA, United States
- University of Massachusetts Chan Medical School, Worcester, MA, United States
| | - Jason K. Kim
- University of Massachusetts Chan Medical School, Worcester, MA, United States
- Division of Endocrinology, Metabolism, and Diabetes, Department of Medicine, University of Massachusetts Chan Medical School, Worcester, MA, United States
| | - Marc J. Tetel
- Neuroscience Department, Wellesley College, Wellesley, MA, United States
- *Correspondence: Marc J. Tetel,
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Metronidazole and ciprofloxacin differentially affect chronic unpredictable mild stress-induced changes in the colon, cecum and ileum microbiota. Appl Microbiol Biotechnol 2021; 106:369-381. [PMID: 34882253 DOI: 10.1007/s00253-021-11685-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Revised: 11/03/2021] [Accepted: 11/04/2021] [Indexed: 01/01/2023]
Abstract
Antibiotics have been shown to have a major impact on the composition and metabolism of gut microbiota, while unpredictable stress has been shown to have major influences on gut microbiota homeostasis. However, the impact of combination antibiotics (e.g. metronidazole and ciprofloxacin) on gut microbiota dysbiosis that is induced by stress remains unclear. Here, chronic unpredictable mild stress (CUMS) was used to simulate unpredictable stress, and Sprague-Dawley rats received antibiotics (metronidazole and ciprofloxacin) after CUMS. The weights and coefficients of the thymus, liver and spleen were analysed. 16S rRNA gene sequencing was performed to determine the gut microbiota in the colon, cecum and ileum. We found that antibiotics decreased the CUMS-induced increases in spleen coefficients. Short-term antibiotic exposure significantly increased the cecum and ileum microbiota richness and significantly increased the ileum microbiota diversity after CUMS. Long-term antibiotic exposure significantly decreased the colon microbiota diversity and significantly increased the ileum microbiota richness after CUMS. The impacts of antibiotic exposure on the microbiota compositions at the phylum and genus levels in different gut segments were different after CUMS. However, it is worth noting that the most differentially abundant bacteria in the colon, cecum and ileum were all Verrucomicrobia under long-term antibiotic exposure. Antibiotic exposure significantly increased the relative abundance of Lactobacillus in the colon and ileum and significantly increased the relative abundance of Akkermansia in the colon and cecum after CUMS. In conclusion, this study showed that metronidazole and ciprofloxacin differentially affected the CUMS-induced changes in the microbiota of the colon, cecum and ileum.Key points• The impacts of antibiotic exposure on the changes in microbiota that were induced by chronic unpredictable mild stress were analysed.• We collected rat gut microorganisms from the colon, cecum and ileum.• The diversities, compositions, functions and network structures were analysed.
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Karamzin AM, Ropot AV, Sergeyev OV, Khalturina EO. Akkermansia muciniphila and host interaction within the intestinal tract. Anaerobe 2021; 72:102472. [PMID: 34743983 DOI: 10.1016/j.anaerobe.2021.102472] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Revised: 10/26/2021] [Accepted: 10/27/2021] [Indexed: 02/07/2023]
Abstract
In the modern world, metabolic syndrome is one of the major health problems. Heredity, overeating, and a sedentary lifestyle are believed to be the main predisposing factors for its development. However, recent data indicate that gut microbiota plays a significant role in metabolic profile formation. In 2004, Derrien et al. isolated and characterized the bacterium Akkermansia muciniphila, which lives mainly in the human intestine and has the ability to utilize intestinal mucin. It proved to be a good candidate for the role of a new-generation probiotic due to its ability to improve the laboratory and physical indicators associated with metabolic syndrome and type 2 diabetes in mice and humans. In this review, we describe the basic microbiological characteristics of this bacterium, its main habitats, clinical effects after oral administration, and different ways of influencing the digestive tract. All these data allow us to understand the mechanism of its beneficial effects, which is important for its future introduction into the treatment of the metabolic syndrome.
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Affiliation(s)
- Andrei M Karamzin
- Sechenov First Moscow State Medical University (Sechenov University), Trubetskaya Street, 8, Moscow, Russian Federation.
| | - Anastasiia V Ropot
- Sechenov First Moscow State Medical University (Sechenov University), Trubetskaya Street, 8, Moscow, Russian Federation.
| | - Oleg V Sergeyev
- Sechenov First Moscow State Medical University (Sechenov University), Trubetskaya Street, 8, Moscow, Russian Federation.
| | - Evgenia O Khalturina
- Sechenov First Moscow State Medical University (Sechenov University), Trubetskaya Street, 8, Moscow, Russian Federation.
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46
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Cuisiniere T, Calvé A, Fragoso G, Oliero M, Hajjar R, Gonzalez E, Santos MM. Oral iron supplementation after antibiotic exposure induces a deleterious recovery of the gut microbiota. BMC Microbiol 2021; 21:259. [PMID: 34583649 PMCID: PMC8480066 DOI: 10.1186/s12866-021-02320-0] [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: 04/22/2021] [Accepted: 09/16/2021] [Indexed: 02/08/2023] Open
Abstract
Background Oral iron supplementation is commonly prescribed for anemia and may play an important role in the gut microbiota recovery of anemic individuals who received antibiotic treatment. This study aims to investigate the effects of iron supplementation on gut microbiota recovery after antibiotics exposure. Results Mice were subjected to oral antibiotic treatment with neomycin and metronidazole and were fed diets with different concentrations of iron. The composition of the gut microbiota was followed throughout treatment by 16S rRNA sequencing of DNA extracted from fecal samples. Gut microbiota functions were inferred using PICRUSt2, and short-chain fatty acid concentration in fecal samples was assessed by liquid-chromatography mass spectrometry. Iron supplementation after antibiotic exposure shifted the gut microbiota composition towards a Bacteroidetes phylum-dominant composition. At the genus level, the iron-supplemented diet induced an increase in the abundance of Parasutterella and Bacteroides, and a decrease of Bilophila and Akkermansia. Parasutterella excrementihominis, Bacteroides vulgatus, and Alistipes finegoldii, were more abundant with the iron excess diet. Iron-induced shifts in microbiota composition were accompanied by functional modifications, including an enhancement of the biosynthesis of primary bile acids, nitrogen metabolism, cyanoamino acid metabolism and pentose phosphate pathways. Recovery after antibiotic treatment increased propionate levels independent of luminal iron levels, whereas butyrate levels were diminished by excess iron. Conclusions Oral iron supplementation after antibiotic therapy in mice may lead to deleterious changes in the recovery of the gut microbiota. Our results have implications on the use of oral iron supplementation after antibiotic exposure and justify further studies on alternative treatments for anemia in these settings. Supplementary Information The online version contains supplementary material available at 10.1186/s12866-021-02320-0.
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Affiliation(s)
- Thibault Cuisiniere
- Nutrition and Microbiome Laboratory, Institut du cancer de Montréal, Centre de recherche du Centre hospitalier de l'Université de Montréal (CRCHUM), CRCHUM - R10.426, 900 rue Saint-Denis, Montréal, Québec, H2X 0A9, Canada
| | - Annie Calvé
- Nutrition and Microbiome Laboratory, Institut du cancer de Montréal, Centre de recherche du Centre hospitalier de l'Université de Montréal (CRCHUM), CRCHUM - R10.426, 900 rue Saint-Denis, Montréal, Québec, H2X 0A9, Canada
| | - Gabriela Fragoso
- Nutrition and Microbiome Laboratory, Institut du cancer de Montréal, Centre de recherche du Centre hospitalier de l'Université de Montréal (CRCHUM), CRCHUM - R10.426, 900 rue Saint-Denis, Montréal, Québec, H2X 0A9, Canada
| | - Manon Oliero
- Nutrition and Microbiome Laboratory, Institut du cancer de Montréal, Centre de recherche du Centre hospitalier de l'Université de Montréal (CRCHUM), CRCHUM - R10.426, 900 rue Saint-Denis, Montréal, Québec, H2X 0A9, Canada
| | - Roy Hajjar
- Nutrition and Microbiome Laboratory, Institut du cancer de Montréal, Centre de recherche du Centre hospitalier de l'Université de Montréal (CRCHUM), CRCHUM - R10.426, 900 rue Saint-Denis, Montréal, Québec, H2X 0A9, Canada.,Digestive Surgery Service, Centre hospitalier de l'Université de Montréal, Montréal, Canada
| | - Emmanuel Gonzalez
- Canadian Centre for Computational Genomics, Department of Human Genetics; and Microbiome Platform Research, McGill Interdisciplinary Initiative in Infection and Immunity, McGill University, Montréal, Canada
| | - Manuela M Santos
- Nutrition and Microbiome Laboratory, Institut du cancer de Montréal, Centre de recherche du Centre hospitalier de l'Université de Montréal (CRCHUM), CRCHUM - R10.426, 900 rue Saint-Denis, Montréal, Québec, H2X 0A9, Canada. .,Department of Medicine, Faculty of Medicine, Université de Montréal, Montréal, Canada.
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47
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Turck D, Bohn T, Castenmiller J, De Henauw S, Hirsch‐Ernst KI, Maciuk A, Mangelsdorf I, McArdle HJ, Naska A, Pelaez C, Pentieva K, Siani A, Thies F, Tsabouri S, Vinceti M, Cubadda F, Frenzel T, Heinonen M, Marchelli R, Neuhäuser‐Berthold M, Poulsen M, Prieto Maradona M, Schlatter JR, van Loveren H, Ackerl R, Knutsen HK. Safety of pasteurised Akkermansia muciniphila as a novel food pursuant to Regulation (EU) 2015/2283. EFSA J 2021; 19:e06780. [PMID: 34484452 PMCID: PMC8409316 DOI: 10.2903/j.efsa.2021.6780] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Following a request from the European Commission, the EFSA Panel on Nutrition, Novel Foods and Food Allergens (NDA) was asked to deliver an opinion on pasteurised Akkermansia muciniphila as a novel food (NF) pursuant to Regulation (EU) 2015/2283. A. muciniphila is a well-characterised non-toxin producing, avirulent microorganism that has been reported as part of normal gut microbiota. The NF, pasteurised A. muciniphila, is proposed by the applicant to be used as a food supplement at max. 5 × 1010 cells/day by adults excluding pregnant and lactating women, and in foods for special medical purposes. The Panel considers that the production process of the NF is sufficiently described and that the information provided on the composition of the NF is sufficient for its characterisation. Taking into account the composition of the NF and the proposed conditions of use, the consumption of the NF is not nutritionally disadvantageous. Based on literature data, and by applying an uncertainty factor of 200 to the no observed adverse effect level (NOAEL) of a 90-day repeated dose oral toxicity study in rats, the Panel concludes that the consumption of 3.4 × 1010 cells/day is safe for the target population under the provision that the number of viable cells in the NF is < 10 colony forming units (CFU)/g (i.e. limit of detection).
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48
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Huck O, Mulhall H, Rubin G, Kizelnik Z, Iyer R, Perpich JD, Haque N, Cani PD, de Vos WM, Amar S. Authors' Response: "Akkermansia muciniphila reduces Porphyromonas gingivalis induced inflammation and periodontal bone destruction". J Clin Periodontol 2021; 48:1493-1494. [PMID: 34409655 DOI: 10.1111/jcpe.13539] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Revised: 06/02/2021] [Accepted: 06/05/2021] [Indexed: 01/11/2023]
Affiliation(s)
- Olivier Huck
- UMR 1260, Fédération de Médecine Translationnelle de Strasbourg (FMTS), INSERM (French National Institute of Health and Medical Research), Regenerative Nanomedicine, Strasbourg, France.,Faculté de Chirurgie-Dentaire, Université de Strasbourg, Strasbourg, France
| | - Hannah Mulhall
- Department of Pharmacology, New York Medical College, Valhalla, New York, USA.,Department of Microbiology and Immunology, New York Medical College, Valhalla, New York, USA
| | - George Rubin
- Touro College of Dental Medicine, Valhalla, New York, USA
| | - Zev Kizelnik
- Touro College of Dental Medicine, Valhalla, New York, USA
| | - Radha Iyer
- Department of Pharmacology, New York Medical College, Valhalla, New York, USA.,Department of Microbiology and Immunology, New York Medical College, Valhalla, New York, USA
| | - John D Perpich
- Department of Oral Immunology and Infectious Diseases, University of Louisville School of Dentistry, Louisville, Kentucky, USA
| | - Nasreen Haque
- Department of Pathology, New York Medical College, Valhalla, New York, USA
| | - Patrice D Cani
- WELBIO (Walloon Excellence in Life sciences and BIOtechnology), Metabolism and Nutrition research group, UCLouvain, Université Catholique de Louvain, Louvain Drug Research Institute, Brussels, Belgium
| | - Willem M de Vos
- Department of Bacteriology and Immunology, RPU Human Microbiome, University of Helsinki, Helsinki, Finland.,Laboratory of Microbiology, Wageningen University, Wageningen, The Netherlands
| | - Salomon Amar
- Department of Pharmacology, New York Medical College, Valhalla, New York, USA.,Department of Microbiology and Immunology, New York Medical College, Valhalla, New York, USA.,Touro College of Dental Medicine, Valhalla, New York, USA
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49
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Arslanova A, Tarasova A, Alexandrova A, Novoselova V, Shaidullov I, Khusnutdinova D, Grigoryeva T, Yarullina D, Yakovleva O, Sitdikova G. Protective Effects of Probiotics on Cognitive and Motor Functions, Anxiety Level, Visceral Sensitivity, Oxidative Stress and Microbiota in Mice with Antibiotic-Induced Dysbiosis. Life (Basel) 2021; 11:764. [PMID: 34440509 PMCID: PMC8398215 DOI: 10.3390/life11080764] [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: 06/30/2021] [Revised: 07/23/2021] [Accepted: 07/27/2021] [Indexed: 12/23/2022] Open
Abstract
Accumulating clinical and preclinical data indicate a prominent role of gut microbiota in regulation of physiological functions. The gut-brain axis imbalance due to gut dysbiosis is associated with a range of neurodegenerative diseases. Probiotics were suggested not only to restore intestinal dysbiosis but also modulate stress response and improve mood and anxiety symptoms. In this study, we assessed the effects of probiotic lactobacilli on behavioral reactions, the level of oxidative stress and microbiota content in mice administered to broad-spectrum antibiotics. Our study demonstrates that antibiotic treatment of adolescent mice for two weeks resulted in higher mortality and lower weight gain and induced significant changes in behavior including lower locomotor and exploratory activity, reduced muscle strength, visceral hypersensitivity, higher level of anxiety and impaired cognitive functions compared to the control group. These changes were accompanied by decreased diversity and total amount of bacteria, abundance of Proteobacteria and Verrucomicrobia phyla, and reduced Firmicutes/Bacteroides ratio in the gut microbiota. Moreover, a higher level of oxidative stress was found in brain and skeletal muscle tissues of mice treated with antibiotics. Oral administration of two Lactobacillus strains prevented the observed changes and improved not only microbiota content but also the behavioral alterations, suggesting a neuroprotective and antioxidant role of probiotics.
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Affiliation(s)
- Alisa Arslanova
- Department of Human and Animal Physiology, Institute of Fundamental Medicine and Biology, Kazan Federal University, 420008 Kazan, Republic of Tatarstan, Russia; (A.A.); (A.T.); (I.S.); (O.Y.)
| | - Aksiniya Tarasova
- Department of Human and Animal Physiology, Institute of Fundamental Medicine and Biology, Kazan Federal University, 420008 Kazan, Republic of Tatarstan, Russia; (A.A.); (A.T.); (I.S.); (O.Y.)
| | - Anastasia Alexandrova
- Department of Microbiology, Institute of Fundamental Medicine and Biology, Kazan Federal University, 420008 Kazan, Republic of Tatarstan, Russia; (A.A.); (V.N.); (D.Y.)
| | - Vera Novoselova
- Department of Microbiology, Institute of Fundamental Medicine and Biology, Kazan Federal University, 420008 Kazan, Republic of Tatarstan, Russia; (A.A.); (V.N.); (D.Y.)
| | - Ilnar Shaidullov
- Department of Human and Animal Physiology, Institute of Fundamental Medicine and Biology, Kazan Federal University, 420008 Kazan, Republic of Tatarstan, Russia; (A.A.); (A.T.); (I.S.); (O.Y.)
| | - Dilyara Khusnutdinova
- “Omics Technologies” Laboratory, Institute of Fundamental Medicine and Biology, Kazan Federal University, 420008 Kazan, Republic of Tatarstan, Russia; (D.K.); (T.G.)
| | - Tatiana Grigoryeva
- “Omics Technologies” Laboratory, Institute of Fundamental Medicine and Biology, Kazan Federal University, 420008 Kazan, Republic of Tatarstan, Russia; (D.K.); (T.G.)
| | - Dina Yarullina
- Department of Microbiology, Institute of Fundamental Medicine and Biology, Kazan Federal University, 420008 Kazan, Republic of Tatarstan, Russia; (A.A.); (V.N.); (D.Y.)
| | - Olga Yakovleva
- Department of Human and Animal Physiology, Institute of Fundamental Medicine and Biology, Kazan Federal University, 420008 Kazan, Republic of Tatarstan, Russia; (A.A.); (A.T.); (I.S.); (O.Y.)
| | - Guzel Sitdikova
- Department of Human and Animal Physiology, Institute of Fundamental Medicine and Biology, Kazan Federal University, 420008 Kazan, Republic of Tatarstan, Russia; (A.A.); (A.T.); (I.S.); (O.Y.)
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50
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Aricha H, Simujide H, Wang C, Zhang J, Lv W, Jimisi X, Liu B, Chen H, Zhang C, He L, Cui Y, Gao R, Aorigele C. Comparative Analysis of Fecal Microbiota of Grazing Mongolian Cattle from Different Regions in Inner Mongolia, China. Animals (Basel) 2021; 11:ani11071938. [PMID: 34209653 PMCID: PMC8300212 DOI: 10.3390/ani11071938] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Revised: 06/25/2021] [Accepted: 06/25/2021] [Indexed: 11/16/2022] Open
Abstract
Simple Summary Recently, there has been increasing attention focused on the intestinal microflorae of animals due to their critical role in maintaining health and preventing disease. With the improvement of the Chinese national economy and the people’s material standard of living, the beef cattle industry is growing rapidly to meet the growing market demand for beef. Mongolian cattle is a precious genetic resource in China and an excellent cattle breed in Inner Mongolia. However, updated research on topics concerning the gut microbiota of Mongolian cattle are absent. Therefore, this study focused on the differences in the gut microbiota composition of Mongolian cattle in different geographical environments. The gut microbiota composition of the Mongolian cattle from the grasslands was relatively similar, while that from the desert areas was different. The results of this study contribute to our understanding of the influence of geographical factors on the composition of gut microbiota in Mongolian cattle. Abstract Mongolian cattle from China have strong adaptability and disease resistance. We aimed to compare the gut microbiota community structure and diversity in grazing Mongolian cattle from different regions in Inner Mongolia and to elucidate the influence of geographical factors on the intestinal microbial community structure. We used high throughput 16S rRNA sequencing to analyze the fecal microbial community and diversity in samples from 60 grazing Mongolian cattle from Hulunbuir Grassland, Xilingol Grassland, and Alxa Desert. A total of 2,720,545 high-quality reads and sequences that were 1,117,505,301 bp long were obtained. Alpha diversity among the three groups showed that the gut microbial diversity in Mongolian cattle in the grasslands was significantly higher than that in the desert. The dominant phyla were Firmicutes and Bacteroidetes, whereas Verrucomicrobia presented the highest abundance in the gut of cattle in the Alxa Desert. The gut bacterial communities in cattle from the grasslands versus the Alxa Desert were distinctive, and those from the grasslands were closely clustered. Community composition analysis revealed significant differences in species diversity and richness. Overall, the composition of the gut microbiota in Mongolian cattle is affected by geographical factors. Gut microbiota may play important roles in the geographical adaptations of Mongolian cattle.
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Affiliation(s)
- Han Aricha
- College of Animal Science, Inner Mongolia Agricultural University, Hohhot 010018, China; (H.A.); (H.S.); (J.Z.); (X.J.); (B.L.); (H.C.); (C.Z.); (L.H.); (Y.C.)
| | - Huasai Simujide
- College of Animal Science, Inner Mongolia Agricultural University, Hohhot 010018, China; (H.A.); (H.S.); (J.Z.); (X.J.); (B.L.); (H.C.); (C.Z.); (L.H.); (Y.C.)
| | - Chunjie Wang
- College of Veterinary Medicine, Inner Mongolia Agricultural University, Hohhot 010018, China; (C.W.); (W.L.); (R.G.)
| | - Jian Zhang
- College of Animal Science, Inner Mongolia Agricultural University, Hohhot 010018, China; (H.A.); (H.S.); (J.Z.); (X.J.); (B.L.); (H.C.); (C.Z.); (L.H.); (Y.C.)
| | - Wenting Lv
- College of Veterinary Medicine, Inner Mongolia Agricultural University, Hohhot 010018, China; (C.W.); (W.L.); (R.G.)
| | - Xirnud Jimisi
- College of Animal Science, Inner Mongolia Agricultural University, Hohhot 010018, China; (H.A.); (H.S.); (J.Z.); (X.J.); (B.L.); (H.C.); (C.Z.); (L.H.); (Y.C.)
| | - Bo Liu
- College of Animal Science, Inner Mongolia Agricultural University, Hohhot 010018, China; (H.A.); (H.S.); (J.Z.); (X.J.); (B.L.); (H.C.); (C.Z.); (L.H.); (Y.C.)
| | - Hao Chen
- College of Animal Science, Inner Mongolia Agricultural University, Hohhot 010018, China; (H.A.); (H.S.); (J.Z.); (X.J.); (B.L.); (H.C.); (C.Z.); (L.H.); (Y.C.)
| | - Chen Zhang
- College of Animal Science, Inner Mongolia Agricultural University, Hohhot 010018, China; (H.A.); (H.S.); (J.Z.); (X.J.); (B.L.); (H.C.); (C.Z.); (L.H.); (Y.C.)
| | - Lina He
- College of Animal Science, Inner Mongolia Agricultural University, Hohhot 010018, China; (H.A.); (H.S.); (J.Z.); (X.J.); (B.L.); (H.C.); (C.Z.); (L.H.); (Y.C.)
| | - Yinxue Cui
- College of Animal Science, Inner Mongolia Agricultural University, Hohhot 010018, China; (H.A.); (H.S.); (J.Z.); (X.J.); (B.L.); (H.C.); (C.Z.); (L.H.); (Y.C.)
| | - Ruijuan Gao
- College of Veterinary Medicine, Inner Mongolia Agricultural University, Hohhot 010018, China; (C.W.); (W.L.); (R.G.)
| | - Chen Aorigele
- College of Animal Science, Inner Mongolia Agricultural University, Hohhot 010018, China; (H.A.); (H.S.); (J.Z.); (X.J.); (B.L.); (H.C.); (C.Z.); (L.H.); (Y.C.)
- Correspondence:
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