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Okada G, Mabuchi R, Kambara C, Tanimoto S, Fujii T. Association of eating habits and Firmicutes/Bacteroidetes ratio among Japanese female university students: A cross-sectional study. Nutr Health 2024; 30:555-563. [PMID: 36177526 DOI: 10.1177/02601060221129771] [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: 11/16/2022]
Abstract
Background & Aims: University students are prone to changes in their health status and lifestyle due to changes in their living environment and associated stress and anxiety. These changes may affect them in later life. This study utilized a cross-sectional study among Japanese female university students to examine dietary factors affecting their fecal microbiota. Methods: Sixty-eight healthy female university students were evaluated using an eating behavior assessment and diet history questionnaire. The 12-component Japanese diet index (JDI-12) was then calculated. A quantitative real-time PCR method was used to analyze the predominant bacterial species in the gut, and the Firmicutes/Bacteroidetes ratio (F/B ratio) at the phylum level was calculated. The partial correlation between the fecal microbiota and eating behavior abnormality score was assessed, and dietary habits associated with the F/B ratio were analyzed. Results: A significant correlation was identified between F/B ratios and the eating behavior abnormality score (r = 0.26, FDR = 0.064). Additionally, multiple regression analysis identified a negative correlation trend between the F/B ratio and JDI-12 score (β = -0.22; p = 0.091), and exploratory analysis found a negative association between the F/B ratio and consumption of beef and pork, one of the less beneficial JDI-12 components (β = -0.33, FDR = 0.120). Conclusion: In healthy female university students, there was a positive correlation between eating behavior abnormality and the F/B ratio, indicating that adherence to the Japanese diet pattern may be associated with a lower F/B ratio.
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Affiliation(s)
- Genya Okada
- Department of Health Sciences, Prefectural University of Hiroshima, Hiroshima, Japan
| | - Ryota Mabuchi
- Department of Local Resources, Faculty of Bioresource Science, Prefectural University of Hiroshima, Hiroshima, Japan
| | - Chisako Kambara
- Department of Health Sciences, Prefectural University of Hiroshima, Hiroshima, Japan
| | - Shota Tanimoto
- Department of Health Sciences, Prefectural University of Hiroshima, Hiroshima, Japan
| | - Tamotsu Fujii
- Department of Health Sciences, Prefectural University of Hiroshima, Hiroshima, Japan
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Cookson AL, Devane M, Marshall JC, Moinet M, Gardner A, Collis RM, Rogers L, Biggs PJ, Pita AB, Cornelius AJ, Haysom I, Hayman DTS, Gilpin BJ, Leonard M. Population structure and pathogen interaction of Escherichia coli in freshwater: Implications of land-use for water quality and public health in Aotearoa New Zealand. ENVIRONMENTAL MICROBIOLOGY REPORTS 2024; 16:e13319. [PMID: 39096033 PMCID: PMC11297283 DOI: 10.1111/1758-2229.13319] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/22/2024] [Accepted: 07/13/2024] [Indexed: 08/04/2024]
Abstract
Freshwater samples (n = 199) were obtained from 41 sites with contrasting land-uses (avian, low impact, dairy, urban, sheep and beef, and mixed sheep, beef and dairy) and the E. coli phylotype of 3980 isolates (20 per water sample enrichment) was determined. Eight phylotypes were identified with B1 (48.04%), B2 (14.87%) and A (14.79%) the most abundant. Escherichia marmotae (n = 22), and Escherichia ruysiae (n = 1), were rare (0.68%) suggesting that these environmental strains are unlikely to confound water quality assessments. Phylotypes A and B1 were overrepresented in dairy and urban sites (p < 0.0001), whilst B2 were overrepresented in low impact sites (p < 0.0001). Pathogens ((Salmonella, Campylobacter, Cryptosporidium or Giardia) and the presence of diarrhoeagenic E. coli-associated genes (stx and eae) were detected in 89.9% (179/199) samples, including 80.5% (33/41) of samples with putative non-recent faecal inputs. Quantitative PCR to detect microbial source tracking targets from human, ruminant and avian contamination were concordant with land-use type and E. coli phylotype abundance. This study demonstrated that a potential recreational health risk remains where pathogens occurred in water samples with low E. coli concentration, potential non-recent faecal sources, low impact sites and where human, ruminant and avian faecal sources were absent.
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Affiliation(s)
- Adrian L. Cookson
- AgResearch LimitedHopkirk Research InstitutePalmerston NorthNew Zealand
- mEpiLab, School of Veterinary SciencesMassey UniversityPalmerston NorthNew Zealand
- Institute of Environmental Science and ResearchKenepuru Science CentrePoriruaNew Zealand
| | - Meg Devane
- Institute of Environmental Science and ResearchChristchurchNew Zealand
| | - Jonathan C. Marshall
- School of Mathematical and Computational SciencesMassey UniversityPalmerston NorthNew Zealand
| | - Marie Moinet
- AgResearch LimitedHopkirk Research InstitutePalmerston NorthNew Zealand
- Institute of Environmental Science and ResearchChristchurchNew Zealand
| | - Amanda Gardner
- AgResearch LimitedHopkirk Research InstitutePalmerston NorthNew Zealand
| | - Rose M. Collis
- AgResearch LimitedHopkirk Research InstitutePalmerston NorthNew Zealand
| | - Lynn Rogers
- AgResearch LimitedHopkirk Research InstitutePalmerston NorthNew Zealand
| | - Patrick J. Biggs
- mEpiLab, School of Veterinary SciencesMassey UniversityPalmerston NorthNew Zealand
- School of Natural SciencesMassey UniversityPalmerston NorthNew Zealand
| | - Anthony B. Pita
- mEpiLab, School of Veterinary SciencesMassey UniversityPalmerston NorthNew Zealand
| | | | - Iain Haysom
- Institute of Environmental Science and ResearchChristchurchNew Zealand
| | - David T. S. Hayman
- mEpiLab, School of Veterinary SciencesMassey UniversityPalmerston NorthNew Zealand
| | - Brent J. Gilpin
- Institute of Environmental Science and ResearchChristchurchNew Zealand
| | - Margaret Leonard
- Institute of Environmental Science and ResearchChristchurchNew Zealand
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Raval SD, Archana G. Evaluation of synbiotic combinations of commercial probiotic strains with different prebiotics in in vitro and ex vivo human gut microcosm model. Arch Microbiol 2024; 206:315. [PMID: 38904672 DOI: 10.1007/s00203-024-04030-3] [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: 05/01/2024] [Revised: 05/25/2024] [Accepted: 06/04/2024] [Indexed: 06/22/2024]
Abstract
Exploring probiotics for their crosstalk with the host microbiome through the fermentation of non-digestible dietary fibers (prebiotics) for their potential metabolic end-products, particularly short-chain fatty acids (SCFAs), is important for understanding the endogenous host-gut microbe interaction. This study was aimed at a systematic comparison of commercially available probiotics to understand their synergistic role with specific prebiotics in SCFAs production both in vitro and in the ex vivo gut microcosm model. Probiotic strains isolated from pharmacy products including Lactobacillus sporogenes (strain not labeled), Lactobacillus rhamnosus GG (ATCC53103), Streptococcus faecalis (T-110 JPC), Bacillus mesentericus (TO-AJPC), Bacillus clausii (SIN) and Saccharomyces boulardii (CNCM I-745) were assessed for their probiotic traits including survival, antibiotic susceptibility, and antibacterial activity against pathogenic strains. Our results showed that the microorganisms under study had strain-specific abilities to persist in human gastrointestinal conditions and varied anti-infective efficacy and antibiotic susceptibility. The probiotic strains displayed variation in the utilization of six different prebiotic substrates for their growth under aerobic and anaerobic conditions. Their prebiotic scores (PS) revealed which were the most suitable prebiotic carbohydrates for the growth of each strain and suggested xylooligosaccharide (XOS) was the poorest utilized among all. HPLC analysis revealed a versatile pattern of SCFAs produced as end-products of prebiotic fermentation by the strains which was influenced by growth conditions. Selected synbiotic (prebiotic and probiotic) combinations showing high PS and high total SCFAs production were tested in an ex vivo human gut microcosm model. Interestingly, significantly higher butyrate and propionate production was found only when synbiotics were applied as against when individual probiotic or prebiotics were applied alone. qRT-PCR analysis with specific primers showed that there was a significant increase in the abundance of lactobacilli and bifidobacteria with synbiotic blends compared to pre-, or probiotics alone. In conclusion, this work presents findings to suggest prebiotic combinations with different well-established probiotic strains that may be useful for developing effective synbiotic blends.
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Affiliation(s)
- Shivani D Raval
- Department of Microbiology and Biotechnology Center, Faculty of Science, The Maharaja Sayajirao University of Baroda, Vadodara, Gujarat, 390 002, India
| | - G Archana
- Department of Microbiology and Biotechnology Center, Faculty of Science, The Maharaja Sayajirao University of Baroda, Vadodara, Gujarat, 390 002, India.
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Liu S, Ma J, He F. A New SPQC Biosensor for the Detection of a New Target of Escherichia/Shigella Genera Based on a Novel Method of Synthesizing Long-Range DNA. Anal Chem 2024; 96:9826-9833. [PMID: 38829542 DOI: 10.1021/acs.analchem.4c00071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/05/2024]
Abstract
The rapid and sensitive detection of Escherichia/Shigella genera is crucial for human disease and health. This study introduces a novel series of piezoelectric quartz crystal (SPQC) sensors for detecting Escherichia/Shigella genera. In this innovative biosensor, we propose a new target and novel method for synthesizing long-range DNA. The method relies on the amplification of two DNA probes, referred to as H and P amplification (HPA), resulting in the products of long-range DNA named Sn. The new target was screened from the 16S rRNA gene and utilized as a biomarker. The SPQC sensor operates as follows: the Capture probe is modified on the electrodes. In the presence of a Displace probe and target, the Capture can form a complex with the Displace probe. The resulting complex hybridizes with Sn, bridging the gap between the electrodes. Finally, silver wires are deposited between the electrodes using Sn as a template. This process results in a sensitive response from the SPQC. The detection limit of the SPQC sensor is 1 CFU/mL, and the detection time is within 2 h. This sensor would be of great benefit for food safety monitoring and clinical diagnosis.
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Affiliation(s)
- Shuyi Liu
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, P.R. China
| | - Jinxia Ma
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, P.R. China
| | - Fengjiao He
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, P.R. China
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Hermes GDA, Rasmussen C, Wellejus A. Variation in the Conservation of Species-Specific Gene Sets for HMO Degradation and Its Effects on HMO Utilization in Bifidobacteria. Nutrients 2024; 16:1893. [PMID: 38931248 PMCID: PMC11206791 DOI: 10.3390/nu16121893] [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: 05/13/2024] [Revised: 06/06/2024] [Accepted: 06/11/2024] [Indexed: 06/28/2024] Open
Abstract
Human milk provides essential nutrients for infants but also consists of human milk oligosaccharides (HMOs), which are resistant to digestion by the infant. Bifidobacteria are among the first colonizers, providing various health benefits for the host. This is largely facilitated by their ability to efficiently metabolize HMOs in a species-specific way. Nevertheless, these abilities can vary significantly by strain, and our understanding of the mechanisms applied by different strains from the same species remains incomplete. Therefore, we assessed the effects of strain-level genomic variation in HMO utilization genes on growth on HMOs in 130 strains from 10 species of human associated bifidobacteria. Our findings highlight the extent of genetic diversity between strains of the same species and demonstrate the effects on species-specific HMO utilization, which in most species is largely retained through the conservation of a core set of genes or the presence of redundant pathways. These data will help to refine our understanding of the genetic factors that contribute to the persistence of individual strains and will provide a better mechanistic rationale for the development and optimization of new early-life microbiota-modulating products to improve infant health.
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Affiliation(s)
- Gerben D. A. Hermes
- Human Health Research, Human Health Biosolutions, Novonesis, Kogle Alle 6, 2970 Hoersholm, Denmark (A.W.)
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Li J, Li Y, Zhao J, Li L, Wang Y, Chen F, Li Y, Cheng R, He F, Ze X, Shen X. Effects of Bifidobacterium breve 207-1 on regulating lifestyle behaviors and mental wellness in healthy adults based on the microbiome-gut-brain axis: a randomized, double-blind, placebo-controlled trial. Eur J Nutr 2024:10.1007/s00394-024-03447-2. [PMID: 38869657 DOI: 10.1007/s00394-024-03447-2] [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: 09/12/2023] [Accepted: 05/23/2024] [Indexed: 06/14/2024]
Abstract
PURPOSE Our study aimed to explore the efficacy of Bifidobacterium breve 207-1 on specific neurotransmitters and hormones and the ability to regulate lifestyle behaviors in healthy adults. METHODS In total, 120 healthy adults with high mental stress, overweight, insomnia, and constipation were randomly assigned to receive low-dose B. breve 207-1 (LD, n = 40), high-dose B. breve 207-1 (HD, n = 40), or placebo (n = 40) for 28 days. Fecal and blood samples were collected and questionnaires were answered before and after the trial. Neurotransmitters and serum hormones were detected using enzyme-linked immunosorbent assay. The gut microbiota composition was assessed using 16 S rRNA sequencing. Short-chain fatty acids (SCFAs) concentrations were determined via gas chromatography-mass spectrometry (GC-MS). RESULTS The primary outcome of our study was changes in mental wellness, including neurotransmitters, the hypothalamic-pituitary-adrena (HPA) axis hormones, and the psychological scales. The results showed that γ-aminobutyric acid (GABA) increased significantly and the HPA axis hormones were suppressed overall in the probiotic groups while 5-hydroxytryptamine (5-HT) did not change significantly. However, there was no significant change in mood scale scores. The secondary outcome focused on the ability of 207-1 to regulate the body and lifestyle of healthy adults (e.g., sleep, diet, exercise, etc.). The PSQI scores in the probiotics groups significantly decreased, indicating improved sleep quality. Meanwhile, the probiotic groups had a slight increase in exercise consumption while dietary intake stabilized. By physical examination, the participants showed weight loss although no statistically significant difference was observed between the groups. Then, validated by gut microbiota, changes in the gut microbiota were observed under the effective intervention of 207-1 while short-chain fatty acids (SCFAs) increased in the LD group, particularly acetic and propionic acids. There was a slight decrease in alpha-diversity in the HD group. CONCLUSION Bifidobacterium breve 207-1 entered the organism and affected neurotransmitter and the HPA axis hormone levels via the microbiome-gut-brain axis. Meanwhile, 207-1 supplementation improved daily lifestyle behaviors in healthy adults, which may in turn lead to changes in their bodies (e.g. weight and lipid metabolism). However, this study did not find significant mood-modulating efficacy. The mechanism of the overall study is unclear, but we hypothesize that SCFAs may be the key pathway, and more experiments are needed for validation in the future. TRIAL REGISTRATION This trial was retrospectively registered in the Chinese Clinical Trial Registry under the accession number ChiCTR2300069453 on March 16, 2023.
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Affiliation(s)
- Jinxing Li
- Department of Nutrition and Food Hygiene, West China School of Public Health and West China Fourth Hospital, Sichuan University, No. 16, 3rd Section, South Renmin Road, Wuhou District, Chengdu, 610041, Sichuan, China
| | - Yapeng Li
- Department of Nutrition and Food Hygiene, West China School of Public Health and West China Fourth Hospital, Sichuan University, No. 16, 3rd Section, South Renmin Road, Wuhou District, Chengdu, 610041, Sichuan, China
| | - Jincheng Zhao
- Department of Nutrition and Food Hygiene, West China School of Public Health and West China Fourth Hospital, Sichuan University, No. 16, 3rd Section, South Renmin Road, Wuhou District, Chengdu, 610041, Sichuan, China
| | - Liang Li
- BYHEALTH Institute of Nutrition & Health, No. 3 Kehui 3rd Street, No. 99 Kexue Avenue Central, Science City, Huangpu District, Guangzhou, 510663, China
| | - Yunyi Wang
- Department of Nutrition and Food Hygiene, West China School of Public Health and West China Fourth Hospital, Sichuan University, No. 16, 3rd Section, South Renmin Road, Wuhou District, Chengdu, 610041, Sichuan, China
| | - Fei Chen
- Department of Nutrition and Food Hygiene, West China School of Public Health and West China Fourth Hospital, Sichuan University, No. 16, 3rd Section, South Renmin Road, Wuhou District, Chengdu, 610041, Sichuan, China
| | - Yuchen Li
- Mental Health Center, West China Hospital, Sichuan University, Chengdu, 610044, Sichuan, China
| | - Ruyue Cheng
- Department of Nutrition and Food Hygiene, West China School of Public Health and West China Fourth Hospital, Sichuan University, No. 16, 3rd Section, South Renmin Road, Wuhou District, Chengdu, 610041, Sichuan, China
| | - Fang He
- Department of Nutrition and Food Hygiene, West China School of Public Health and West China Fourth Hospital, Sichuan University, No. 16, 3rd Section, South Renmin Road, Wuhou District, Chengdu, 610041, Sichuan, China
| | - Xiaolei Ze
- BYHEALTH Institute of Nutrition & Health, No. 3 Kehui 3rd Street, No. 99 Kexue Avenue Central, Science City, Huangpu District, Guangzhou, 510663, China.
| | - Xi Shen
- Department of Nutrition and Food Hygiene, West China School of Public Health and West China Fourth Hospital, Sichuan University, No. 16, 3rd Section, South Renmin Road, Wuhou District, Chengdu, 610041, Sichuan, China.
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Zhuang L, Gong J, Zhao Y, Yang J, Liu G, Zhao B, Song C, Zhang Y, Shen Q. Progress in methods for the detection of viable Escherichia coli. Analyst 2024; 149:1022-1049. [PMID: 38273740 DOI: 10.1039/d3an01750h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2024]
Abstract
Escherichia coli (E. coli) is a prevalent enteric bacterium and a necessary organism to monitor for food safety and environmental purposes. Developing efficient and specific methods is critical for detecting and monitoring viable E. coli due to its high prevalence. Conventional culture methods are often laborious and time-consuming, and they offer limited capability in detecting potentially harmful viable but non-culturable E. coli in the tested sample, which highlights the need for improved approaches. Hence, there is a growing demand for accurate and sensitive methods to determine the presence of viable E. coli. This paper scrutinizes various methods for detecting viable E. coli, including culture-based methods, molecular methods that target DNAs and RNAs, bacteriophage-based methods, biosensors, and other emerging technologies. The review serves as a guide for researchers seeking additional methodological options and aiding in the development of rapid and precise assays. Moving forward, it is anticipated that methods for detecting E. coli will become more stable and robust, ultimately contributing significantly to the improvement of food safety and public health.
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Affiliation(s)
- Linlin Zhuang
- School of Animal Husbandry and Veterinary Medicine, Jiangsu Vocational College of Agriculture and Forestry, Jurong 212400, P. R. China.
- State Key Laboratory of Digital Medical Engineering, Jiangsu Key Laboratory for Biomaterials and Devices, School of Biological Science and Medical Engineering & Basic Medicine Research and Innovation Center of Ministry of Education, Zhongda Hospital, Southeast University, Nanjing 211102, P. R. China.
| | - Jiansen Gong
- Poultry Institute, Chinese Academy of Agricultural Sciences, Yangzhou 225125, P. R. China
| | - Ying Zhao
- State Key Laboratory of Digital Medical Engineering, Jiangsu Key Laboratory for Biomaterials and Devices, School of Biological Science and Medical Engineering & Basic Medicine Research and Innovation Center of Ministry of Education, Zhongda Hospital, Southeast University, Nanjing 211102, P. R. China.
| | - Jianbo Yang
- School of Animal Husbandry and Veterinary Medicine, Jiangsu Vocational College of Agriculture and Forestry, Jurong 212400, P. R. China.
| | - Guofang Liu
- School of Animal Husbandry and Veterinary Medicine, Jiangsu Vocational College of Agriculture and Forestry, Jurong 212400, P. R. China.
| | - Bin Zhao
- School of Animal Husbandry and Veterinary Medicine, Jiangsu Vocational College of Agriculture and Forestry, Jurong 212400, P. R. China.
| | - Chunlei Song
- School of Animal Husbandry and Veterinary Medicine, Jiangsu Vocational College of Agriculture and Forestry, Jurong 212400, P. R. China.
| | - Yu Zhang
- State Key Laboratory of Digital Medical Engineering, Jiangsu Key Laboratory for Biomaterials and Devices, School of Biological Science and Medical Engineering & Basic Medicine Research and Innovation Center of Ministry of Education, Zhongda Hospital, Southeast University, Nanjing 211102, P. R. China.
| | - Qiuping Shen
- School of Animal Husbandry and Veterinary Medicine, Jiangsu Vocational College of Agriculture and Forestry, Jurong 212400, P. R. China.
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Lyu Q, Chen RA, Chuang HL, Zou HB, Liu L, Sung LK, Liu PY, Wu HY, Chang HY, Cheng WJ, Wu WK, Wu MS, Hsu CC. Bifidobacterium alleviate metabolic disorders via converting methionine to 5'-methylthioadenosine. Gut Microbes 2024; 16:2300847. [PMID: 38439565 PMCID: PMC10936671 DOI: 10.1080/19490976.2023.2300847] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Accepted: 12/27/2023] [Indexed: 03/06/2024] Open
Abstract
Dietary patterns and corresponding gut microbiota profiles are associated with various health conditions. A diet rich in polyphenols, primarily plant-based, has been shown to promote the growth of probiotic bacteria in the gastrointestinal tract, subsequently reducing the risk of metabolic disorders in the host. The beneficial effects of these bacteria are largely due to the specific metabolites they produce, such as short-chain fatty acids and membrane proteins. In this study, we employed a metabolomics-guided bioactive metabolite identification platform that included bioactivity testing using in vitro and in vivo assays to discover a bioactive metabolite produced from probiotic bacteria. Through this approach, we identified 5'-methylthioadenosine (MTA) as a probiotic bacterial-derived metabolite with anti-obesity properties. Furthermore, our findings indicate that MTA administration has several regulatory impacts on liver functions, including modulating fatty acid synthesis and glucose metabolism. The present study elucidates the intricate interplay between dietary habits, gut microbiota, and their resultant metabolites.
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Affiliation(s)
- Qiang Lyu
- Department of Chemistry, National Taiwan University, Taipei, Taiwan
| | - Rou-An Chen
- Department of Chemistry, National Taiwan University, Taipei, Taiwan
- Leeuwenhoek Laboratories Co. Ltd, Taipei, Taiwan
| | - Hsiao-Li Chuang
- National Laboratory Animal Center, National Applied Research Laboratories Research Institute, Taipei, Taiwan
| | - Hsin-Bai Zou
- Department of Chemistry, National Taiwan University, Taipei, Taiwan
- Leeuwenhoek Laboratories Co. Ltd, Taipei, Taiwan
| | - Lihong Liu
- Institute of Molecular Biology, Academia Sinica, Taipei, Taiwan
| | - Li-Kang Sung
- Department of Chemistry, National Taiwan University, Taipei, Taiwan
| | - Po-Yu Liu
- Department of Internal Medicine, College of Medicine, National Taiwan University, Taipei, Taiwan
| | - Hsin-Yi Wu
- Department of Chemistry, National Taiwan University, Taipei, Taiwan
| | - Hsin-Yuan Chang
- Department of Chemistry, National Taiwan University, Taipei, Taiwan
| | - Wan-Ju Cheng
- Department of Chemistry, National Taiwan University, Taipei, Taiwan
| | - Wei-Kai Wu
- Department of Internal Medicine, College of Medicine, National Taiwan University, Taipei, Taiwan
- Department of Medical Research, National Taiwan University Hospital, Taipei, Taiwan
| | - Ming-Shiang Wu
- Department of Internal Medicine, College of Medicine, National Taiwan University, Taipei, Taiwan
- Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan
| | - Cheng-Chih Hsu
- Department of Chemistry, National Taiwan University, Taipei, Taiwan
- Leeuwenhoek Laboratories Co. Ltd, Taipei, Taiwan
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9
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Walsh C, Owens RA, Bottacini F, Lane JA, van Sinderen D, Hickey RM. HMO-primed bifidobacteria exhibit enhanced ability to adhere to intestinal epithelial cells. Front Microbiol 2023; 14:1232173. [PMID: 38163079 PMCID: PMC10757668 DOI: 10.3389/fmicb.2023.1232173] [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: 05/31/2023] [Accepted: 11/06/2023] [Indexed: 01/03/2024] Open
Abstract
The ability of gut commensals to adhere to the intestinal epithelium can play a key role in influencing the composition of the gut microbiota. Bifidobacteria are associated with a multitude of health benefits and are one of the most widely used probiotics for humans. Enhanced bifidobacterial adhesion may increase host-microbe, microbe-nutrient, and/or microbe-microbe interactions, thereby enabling consolidated health benefits to the host. The objective of this study was to determine the ability of human milk oligosaccharides (HMOs) to enhance bifidobacterial intestinal adhesion in vitro. This study assessed the colonisation-promoting effects of HMOs on four commercial infant-associated Bifidobacterium strains (two B. longum subsp. infantis strains, B. breve and B. bifidum). HT29-MTX cells were used as an in vitro intestinal model for bacterial adhesion. Short-term exposure of four commercial infant-associated Bifidobacterium strains to HMOs derived from breastmilk substantially increased the adherence (up to 47%) of these probiotic strains. Interestingly, when strains were incubated with HMOs as a four-strain combination, the number of viable bacteria adhering to intestinal cells increased by >90%. Proteomic analysis of this multi-strain bifidobacterial mixture revealed that the increased adherence resulting from exposure to HMOs was associated with notable increases in the abundance of sortase-dependent pili and glycosyl hydrolases matched to Bifidobacterium bifidum. This study suggests that HMOs may prime infant gut-associated Bifidobacterium for colonisation to intestinal epithelial cells by influencing the expression of various colonization factors.
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Affiliation(s)
- Clodagh Walsh
- Teagasc Food Research Centre, Moorepark, Cork, Ireland
- Health and Happiness Group, H&H Research, Cork, Ireland
- APC Microbiome Ireland and School of Microbiology, University College Cork, Cork, Ireland
| | | | - Francesca Bottacini
- APC Microbiome Ireland and School of Microbiology, University College Cork, Cork, Ireland
- Biological Sciences and ADAPT Research Centre, Munster Technological University, Cork, Ireland
| | | | - Douwe van Sinderen
- APC Microbiome Ireland and School of Microbiology, University College Cork, Cork, Ireland
| | - Rita M. Hickey
- Teagasc Food Research Centre, Moorepark, Cork, Ireland
- APC Microbiome Ireland and School of Microbiology, University College Cork, Cork, Ireland
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SHIMADA M, KAWASE Y, SONOYAMA K, OGURA Y, HAYASHI T, YOKOTA A, FUKIYA S. Development of an improved colonization system for human-derived Bifidobacterium longum subsp. longum in conventional mice through the feeding of raffinose or 1-kestose. BIOSCIENCE OF MICROBIOTA, FOOD AND HEALTH 2023; 43:110-119. [PMID: 38562544 PMCID: PMC10981944 DOI: 10.12938/bmfh.2023-055] [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: 07/06/2023] [Accepted: 11/05/2023] [Indexed: 04/04/2024]
Abstract
How bifidobacteria colonize and survive in the intestine is not fully understood. The administration of bifidobacteria to conventional mice can be used to evaluate their ability to colonize the intestine in the presence of endogenous gut microbiota. However, human-derived bifidobacteria do not readily colonize the intestines of conventional mice, and although colonization by Bifidobacterium breve UCC2003 has been achieved, the viability of such populations requires improvement. Therefore, we aimed to establish a colonization system with human-derived bifidobacteria of high viability in conventional mice using Bifidobacterium longum subsp. longum 105-A. Lactose, raffinose, and 1-kestose were identified as the preferred carbohydrate sources for the growth of this strain in culture. The administration of B. longum 105-A to conventional BALB/c mice fed these carbohydrates showed that diets containing 6% (w/w) raffinose or 1-kestose facilitated colonization with >108 colony-forming units/g feces for 2 weeks. The population of this strain was more stable in the raffinose-fed group than in the 1-kestose-fed group. The ingestion of these prebiotics had a greater impact on the composition of the microbiota than the administration of B. longum 105-A. The ingestion of these prebiotics also increased the fecal concentrations of organic acids, which was indicative of greater intestinal fermentation. Collectively, we established a colonization system for B. longum 105-A with high viability in conventional mice by feeding the mice raffinose or 1-kestose. This system should be useful for elucidation of the mechanisms of colonization and survival of bifidobacteria in the intestines in the presence of the endogenous gut microbiota.
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Affiliation(s)
- Mina SHIMADA
- Laboratory of Microbial Physiology, Research Faculty of
Agriculture, Hokkaido University, Kita 9, Nishi 9, Kita-ku, Sapporo, Hokkaido 060-8589,
Japan
| | - Youhei KAWASE
- Laboratory of Microbial Physiology, Research Faculty of
Agriculture, Hokkaido University, Kita 9, Nishi 9, Kita-ku, Sapporo, Hokkaido 060-8589,
Japan
| | - Kei SONOYAMA
- Laboratory of Food Biochemistry, Research Faculty of
Agriculture, Hokkaido University, Kita 9, Nishi 9, Kita-ku, Sapporo, Hokkaido 060-8589,
Japan
| | - Yoshitoshi OGURA
- Department of Bacteriology, Faculty of Medical Sciences,
Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka-shi, Fukuoka 812-8582, Japan
- Department of Infectious Medicine, Kurume University School
of Medicine, 67 Asahi-machi, Kurume-shi, Fukuoka 830-0011, Japan
| | - Tetsuya HAYASHI
- Department of Bacteriology, Faculty of Medical Sciences,
Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka-shi, Fukuoka 812-8582, Japan
| | - Atsushi YOKOTA
- Laboratory of Microbial Physiology, Research Faculty of
Agriculture, Hokkaido University, Kita 9, Nishi 9, Kita-ku, Sapporo, Hokkaido 060-8589,
Japan
| | - Satoru FUKIYA
- Laboratory of Microbial Physiology, Research Faculty of
Agriculture, Hokkaido University, Kita 9, Nishi 9, Kita-ku, Sapporo, Hokkaido 060-8589,
Japan
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11
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Scaglia E, Reggi S, Canala B, Frazzini S, Dell’Anno M, Hejna M, Rossi L. The Effects of Milk Replacer Supplemented with Ascophyllum nodosum as a Novel Ingredient to Prevent Neonatal Diarrhea in Dairy Calves and Improve Their Health Status. Vet Sci 2023; 10:618. [PMID: 37888570 PMCID: PMC10610816 DOI: 10.3390/vetsci10100618] [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: 07/26/2023] [Revised: 10/04/2023] [Accepted: 10/10/2023] [Indexed: 10/28/2023] Open
Abstract
Nutrition and health during pre-weaning affect the calves' future fertility, calving age, production, and carrier length. Calves are highly susceptible to neonatal calf diarrhea (NCD), which can be fatal. NCD is due to hypovolemia and acidosis, which may involve anorexia and ataxia. The One Health principle calls for a drastic reduction in antimicrobial use. One approach is to improve animal health and reduce the use of antibiotics and functional ingredients that have beneficial effects due to bioactive compounds. Several functional ingredients and additives can be considered, and, in particular for this study, Ascophyllum nodosum was considered. The present study aimed to evaluate the role of A. nodosum as a functional ingredient implemented into the milk replacer in neonatal calves. Twelve pre-weaned Holstein Frisian calves, housed in twelve individual pens in the same environmental conditions, were divided into two groups of six animals: a control group (CTRL, n = 6) fed with a milk replacer, and a treatment group receiving milk enriched with 10 g of A. nodosum in their diet (TRT, n = 6) for 42 days. The fecal score was evaluated daily (3-0 scale) to monitor the incidence of diarrhea in the two groups. The body weight was evaluated weekly, and every two weeks feces were collected for microbiological evaluation using a selective medium for plate counting of total, lactic acid, and coliform bacteria. To verify the presence of Lactobacillus, Bifidobacterium, and Escherichia coli, real-time qPCR was used. At the beginning and at the end of the trial, blood samples were obtained for serum metabolite analysis. The growth performance did not differ in either of the two groups, but significant differences were observed in the incidence of moderate diarrhea (p-value < 0.0113), where the TRT group showed a lower incidence of cases during the 42-day period. Serum analysis highlighted higher contents of albumin, calcium, phosphorus, and total cholesterol in the TRT group compared to CTRL (p-value < 0.05). In conclusion, implementation of A. nodosum in the diet of calves can lead to better animal welfare and may reduce the use of antibiotics.
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Affiliation(s)
- Elena Scaglia
- Department Civil, Environmental, Architectural Engineering and Mathematics—DICATAM, University of Brescia, 25123 Brescia, Italy;
| | - Serena Reggi
- Department of Veterinary Medicine and Animal Sciences—DIVAS, University of Milan, 26900 Lodi, Italy; (S.R.); (B.C.); (S.F.); (M.D.)
| | - Benedetta Canala
- Department of Veterinary Medicine and Animal Sciences—DIVAS, University of Milan, 26900 Lodi, Italy; (S.R.); (B.C.); (S.F.); (M.D.)
| | - Sara Frazzini
- Department of Veterinary Medicine and Animal Sciences—DIVAS, University of Milan, 26900 Lodi, Italy; (S.R.); (B.C.); (S.F.); (M.D.)
| | - Matteo Dell’Anno
- Department of Veterinary Medicine and Animal Sciences—DIVAS, University of Milan, 26900 Lodi, Italy; (S.R.); (B.C.); (S.F.); (M.D.)
| | - Monika Hejna
- Department of Biotechnology and Nutrigenomics, Institute of Genetics and Animal Biotechnology of the Polish Academy of Sciences, Jastrzębiec, 05-552 Magdalenka, Poland;
| | - Luciana Rossi
- Department of Veterinary Medicine and Animal Sciences—DIVAS, University of Milan, 26900 Lodi, Italy; (S.R.); (B.C.); (S.F.); (M.D.)
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12
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ISHIGURO N, HAYASHI T, OKAYAMA M, YAMAGUCHI T, KOHNO M, KAWAKAMI H, MITSUNAGA T, NAKAMURA K, INAGAKI M. Effects of blackcurrant extract on indole and ammonia productions in an in vitro human fecal culture model. BIOSCIENCE OF MICROBIOTA, FOOD AND HEALTH 2023; 43:23-28. [PMID: 38188663 PMCID: PMC10767324 DOI: 10.12938/bmfh.2022-094] [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: 02/16/2023] [Accepted: 08/13/2023] [Indexed: 01/09/2024]
Abstract
Blackcurrant is available as a traditional medicine in Europe. However, the detailed effects of blackcurrant on the human gut microbiota remain unknown. In this study, we investigated the prebiotic effects of a blackcurrant extract using a human fecal culture model in six healthy subjects. Feces were individually inoculated into a medium with or without the blackcurrant extract and then fermented for 48 hr under anaerobic conditions. The results obtained from analysis of samples from the fermented medium demonstrated that after 48 hr of fermentation, the pH of the medium with the blackcurrant extract was significantly decreased (control, 6.62 ± 0.20; blackcurrant extract, 6.41 ± 0.33; p=0.0312). A 16S rRNA gene sequencing analysis of the microbiota of the fermented medium showed a significant increase in the relative abundance of Bifidobacteriaceae. In measuring the concentrations of putrefactive components in the fermented medium, we found that the blackcurrant extract significantly reduced ammonia levels and displayed a tendency toward reduced indole levels. Our results suggest that blackcurrant extract could be a potential ingredient for relief of putrefactive components in the gut.
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Affiliation(s)
- Nanami ISHIGURO
- Faculty of Applied Biological Sciences, Gifu University, 1-1
Yanagido, Gifu, Gifu 501-1193, Japan
| | - Takayuki HAYASHI
- Faculty of Applied Biological Sciences, Gifu University, 1-1
Yanagido, Gifu, Gifu 501-1193, Japan
| | - Miho OKAYAMA
- Faculty of Applied Biological Sciences, Gifu University, 1-1
Yanagido, Gifu, Gifu 501-1193, Japan
| | - Taiki YAMAGUCHI
- Morishita Jintan Co., Ltd., 2-40, Tamatsukuri 1-Chome,
Chuo-Ku, Osaka 540-8566, Japan
| | - Mamiko KOHNO
- Morishita Jintan Co., Ltd., 2-40, Tamatsukuri 1-Chome,
Chuo-Ku, Osaka 540-8566, Japan
| | - Hirosato KAWAKAMI
- Morishita Jintan Co., Ltd., 2-40, Tamatsukuri 1-Chome,
Chuo-Ku, Osaka 540-8566, Japan
| | - Tohru MITSUNAGA
- Faculty of Applied Biological Sciences, Gifu University, 1-1
Yanagido, Gifu, Gifu 501-1193, Japan
| | - Kohei NAKAMURA
- Faculty of Applied Biological Sciences, Gifu University, 1-1
Yanagido, Gifu, Gifu 501-1193, Japan
| | - Mizuho INAGAKI
- Faculty of Applied Biological Sciences, Gifu University, 1-1
Yanagido, Gifu, Gifu 501-1193, Japan
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13
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Kubota S, Sugiura S, Takahashi M, Kadota Y, Takasato Y, Matsui T, Kitamura K, Tochio T, Ito K. Kestose Increases the Relative Abundance of Faecalibacterium spp. and Nominally Increases Cow Milk Tolerant Dose in Children with Cow's Milk Allergy - Preliminary Results. Pol J Microbiol 2023; 72:299-306. [PMID: 37725897 PMCID: PMC10508972 DOI: 10.33073/pjm-2023-030] [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: 03/24/2023] [Accepted: 06/30/2023] [Indexed: 09/21/2023] Open
Abstract
A single-arm study was conducted with 10 children aged 2-12 years with severe cow's milk allergy (CMA) requiring complete allergen elimination. Subjects were administered kestose, a prebiotic, at 1 or 2 g/day for 12 weeks. Results of a subsequent oral food challenge (OFC) showed a statistically significant increase in the total dose of cow's milk ingestion (1.6 ml vs. 2.7 ml, p = 0.041). However, the overall evaluation of the OFC results, TS/Pro (total score of Anaphylaxis Scoring Aichi (ASCA)/cumulative dose of protein), showed no statistically significant improvement, although the values were nominally improved in seven out of 10 subjects. The 16S rDNA analysis of fecal samples collected from the subjects revealed a statistically significant increase in the proportion of Faecalibacterium spp. (3.8 % vs. 6.8%, p = 0.013), a type of intestinal bacterium that has been reported to be associated with food allergy. However, no statistically significant correlation was found between Faecalibacterium spp. abundance and the results of the OFC.
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Affiliation(s)
- Shohei Kubota
- Aichi Children's Health and Medical Center, Obu-shi, Japan
- Saiseikai Yokohamashi Tobu Hospital, Yokohama-shi, Japan
| | - Shiro Sugiura
- Aichi Children's Health and Medical Center, Obu-shi, Japan
| | | | | | | | - Teruaki Matsui
- Aichi Children's Health and Medical Center, Obu-shi, Japan
| | | | - Takumi Tochio
- B Food Science Co., Ltd., Chita-shi, Japan
- Fujita Health University, Toyoake-shi, Japan
| | - Komei Ito
- Aichi Children's Health and Medical Center, Obu-shi, Japan
- Nagoya University Graduate School of Medicine, Nagoya-shi, Japan
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14
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Inokuma K, Sasaki D, Kurata K, Ichikawa M, Otsuka Y, Kondo A. Sulfated and non-sulfated chondroitin affect the composition and metabolism of human colonic microbiota simulated in an in vitro fermentation system. Sci Rep 2023; 13:12313. [PMID: 37516730 PMCID: PMC10387111 DOI: 10.1038/s41598-023-38849-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Accepted: 07/16/2023] [Indexed: 07/31/2023] Open
Abstract
Chondroitin sulfate (CS) is a family of glycosaminoglycans and have a wide range of applications in dietary supplements and pharmaceutical drugs. In this study, we evaluated the effects of several types of CS, differing in their sulfated positions, on the human colonic microbiota and their metabolites. CS (CSA, CSC, and CSE) and non-sulfated chondroitin (CH) were added into an in vitro human colonic microbiota model with fecal samples from 10 healthy individuals. CS addition showed a tendency to increase the relative abundance of Bacteroides, Eubacterium, and Faecalibacterium, and CSC and CSE addition significantly increased the total number of eubacteria in the culture of the Kobe University Human Intestinal Microbiota Model. CSE addition also resulted in a significant increase in short-chain fatty acid (SCFA) levels. Furthermore, addition with CSC and CSE increased the levels of a wide range of metabolites including lysine, ornithine, and Ile-Pro-Pro, which could have beneficial effects on the host. However, significant increases in the total number of eubacteria, relative abundance of Bacteroides, and SCFA levels were also observed after addition with CH, and the trends in the effects of CH addition on metabolite concentrations were identical to those of CSC and CSE addition. These results provide novel insight into the contribution of the colonic microbiota to the beneficial effects of dietary CS.
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Affiliation(s)
- Kentaro Inokuma
- Graduate School of Science, Technology and Innovation, Kobe University, 1-1 Rokkodai-cho, Nada-ku, Kobe, 657-8501, Japan
| | - Daisuke Sasaki
- Graduate School of Science, Technology and Innovation, Kobe University, 1-1 Rokkodai-cho, Nada-ku, Kobe, 657-8501, Japan
| | - Kaoru Kurata
- Glycoscience, Central Research Laboratory, Seikagaku Corporation, 3-1253, Tateno, Higashiyamato, Tokyo, 207-0021, Japan
| | - Megumi Ichikawa
- Glycoscience, Central Research Laboratory, Seikagaku Corporation, 3-1253, Tateno, Higashiyamato, Tokyo, 207-0021, Japan
| | - Yuya Otsuka
- Glycoscience, Central Research Laboratory, Seikagaku Corporation, 3-1253, Tateno, Higashiyamato, Tokyo, 207-0021, Japan
| | - Akihiko Kondo
- Graduate School of Science, Technology and Innovation, Kobe University, 1-1 Rokkodai-cho, Nada-ku, Kobe, 657-8501, Japan.
- Biomass Engineering Program, RIKEN, 1-7-22 Suehiro-Cho, Tsurumi-ku, Yokohama, Kanagawa, 230-0045, Japan.
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15
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Sugimoto T, Atobe S, Kado Y, Takahashi A, Motoori M, Sugimura K, Miyata H, Yano M, Tanaka K, Doki Y, Shiraishi O, Yasuda T, Asahara T. Gut microbiota associated with the mitigation effect of synbiotics on adverse events of neoadjuvant chemotherapy in patients with esophageal cancer: A retrospective exploratory study. J Med Microbiol 2023; 72. [PMID: 37367942 DOI: 10.1099/jmm.0.001723] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/28/2023] Open
Abstract
Introduction. Our synbiotics (Lacticaseibacillus paracasei strain Shirota, Bifidobacterium breve strain Yakult, and galacto-oligosaccharides: LBG) helps mitigate serious adverse events such as febrile neutropenia (FN) and diarrhoea in oesophageal cancer patients receiving neoadjuvant chemotherapy (NAC). Unfortunately, LBG therapy does not benefit all patients.Hypothesis/Gap Statement. Identification of the gut microbiota species involved in adverse events during chemotherapy could help predict the onset of adverse events. Identification of the gut microbiota that influence the efficacy of LBG could also help establish a diagnostic method to identify patients who will respond to LBG before the initiation of therapy.Aim. To identify the gut microbiota involved in adverse events during NAC and that affect the efficacy of LBG therapy.Methodology. This study was ancillary to a parent randomized controlled trial in which 81 oesophageal cancer patients were recruited and administered either prophylactic antibiotics or LBG combined with enteral nutrition (LBG+EN). The study included 73 of 81 patients from whom faecal samples were collected both before and after NAC. The gut microbiota was analysed using 16S rRNA gene amplicon sequencing and compared based on the degree of NAC-associated adverse events. Furthermore, the association between the counts of identified bacteria and adverse events and the mitigation effect of LBG+EN was also analysed.Results. The abundance of Anaerostipes hadrus and Bifidobacterium pseudocatenulatum in patients with no FN or only mild diarrhoea was significantly higher (P<0.05) compared to those with FN or severe diarrhoea. Moreover, subgroup analyses of patients receiving LBG+EN showed that the faecal A. hadrus count before NAC was significantly associated with a risk of developing FN (OR, 0.11; 95 % CI, 0.01-0.60, P=0.019). The faecal A. hadrus count after NAC was positively correlated with intestinal concentrations of acetic acid (P=0.0007) and butyric acid (P=0.00005).Conclusion. Anaerostipes hadrus and B. pseudocatenulatum may be involved in the ameliorating adverse events and can thus be used to identify beforehand patients that would benefit from LBG+EN during NAC. These results also suggest that LBG+EN would be useful in the development of measures to prevent adverse events during NAC.
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Affiliation(s)
- Takuya Sugimoto
- Yakult Central Institute, Yakult Honsha Co., Ltd., Tokyo, Japan
| | - Satomi Atobe
- Yakult Central Institute, Yakult Honsha Co., Ltd., Tokyo, Japan
| | - Yukiko Kado
- Yakult Central Institute, Yakult Honsha Co., Ltd., Tokyo, Japan
| | - Akira Takahashi
- Yakult Central Institute, Yakult Honsha Co., Ltd., Tokyo, Japan
| | - Masaaki Motoori
- Department of Gastroenterological Surgery, Osaka General Medical Center, Osaka, Japan
| | - Keijiro Sugimura
- Department of Gastroenterological Surgery, Osaka International Cancer Institute, Osaka, Japan
| | - Hiroshi Miyata
- Department of Gastroenterological Surgery, Osaka International Cancer Institute, Osaka, Japan
| | - Masahiko Yano
- Department of Gastroenterological Surgery, Osaka International Cancer Institute, Osaka, Japan
| | - Koji Tanaka
- Department of Gastroenterological Surgery, Graduate School of Medicine, Osaka University, Osaka, Japan
| | - Yuichiro Doki
- Department of Gastroenterological Surgery, Graduate School of Medicine, Osaka University, Osaka, Japan
| | - Osamu Shiraishi
- Department of Surgery, Faculty of Medicine, Kindai University, Osaka, Japan
| | - Takushi Yasuda
- Department of Surgery, Faculty of Medicine, Kindai University, Osaka, Japan
| | - Takashi Asahara
- Yakult Central Institute, Yakult Honsha Co., Ltd., Tokyo, Japan
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16
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Qian X, Tian P, Lin G, Xu X, Wang G, Zhang H, Chen W. Detection of colonization capacity of probiotic Bifidobacterium breve CCFM1025 in the human gut. Future Microbiol 2023; 18:595-606. [PMID: 37314317 DOI: 10.2217/fmb-2022-0131] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/15/2023] Open
Abstract
Aim: To detect the gut colonization capacity of Bifidobacterium breve CCFM1025 with clinical antidepressant-like effects. Materials & methods: A unique gene sequence of B. breve CCFM1025 was discovered based on the genome analysis of 104 B. breve strains and a strain-specific primer (1025T5) was designed. In vitro and in vivo samples were used to validate the specificity and quantitative capability of this primer in the PCR system. Results: Quantitative PCR using strain-specific primers enabled absolute quantification of CCFM1025 in fecal samples within 104-1010 cells/g (R2 >0.99). CCFM1025 remained highly detectable in volunteer feces 14 days after cessation of administration, demonstrating its favorable colonization characteristics. Conclusion: CCFM1025 can colonize the healthy human gut.
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Affiliation(s)
- Xin Qian
- State Key Laboratory of Food Science & Resources, 1800 Lihu Avenue, Wuxi, Jiangsu, 214122, China
- School of Food Science & Technology, Jiangnan University, Wuxi, Jiangsu, 214122, China
| | - Peijun Tian
- State Key Laboratory of Food Science & Resources, 1800 Lihu Avenue, Wuxi, Jiangsu, 214122, China
- School of Food Science & Technology, Jiangnan University, Wuxi, Jiangsu, 214122, China
| | - Guopeng Lin
- State Key Laboratory of Food Science & Resources, 1800 Lihu Avenue, Wuxi, Jiangsu, 214122, China
- School of Food Science & Technology, Jiangnan University, Wuxi, Jiangsu, 214122, China
| | - Xinglong Xu
- Jingjiang Chinese Medicine Hospital, Taizhou, Jiangsu, 214500, China
| | - Gang Wang
- State Key Laboratory of Food Science & Resources, 1800 Lihu Avenue, Wuxi, Jiangsu, 214122, China
- School of Food Science & Technology, Jiangnan University, Wuxi, Jiangsu, 214122, China
- National Engineering Research Center for Functional Food, Jiangnan University, Wuxi, Jiangsu, 214122, China
- (Yangzhou) Institute of Food Biotechnology, Jiangnan University, Yangzhou, 225004, China
| | - Hao Zhang
- State Key Laboratory of Food Science & Resources, 1800 Lihu Avenue, Wuxi, Jiangsu, 214122, China
- School of Food Science & Technology, Jiangnan University, Wuxi, Jiangsu, 214122, China
- National Engineering Research Center for Functional Food, Jiangnan University, Wuxi, Jiangsu, 214122, China
- (Yangzhou) Institute of Food Biotechnology, Jiangnan University, Yangzhou, 225004, China
| | - Wei Chen
- State Key Laboratory of Food Science & Resources, 1800 Lihu Avenue, Wuxi, Jiangsu, 214122, China
- School of Food Science & Technology, Jiangnan University, Wuxi, Jiangsu, 214122, China
- National Engineering Research Center for Functional Food, Jiangnan University, Wuxi, Jiangsu, 214122, China
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17
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Sasaki D, Sasaki K, Abe A, Ozeki M, Kondo A. Effects of partially hydrolyzed guar gums of different molecular weights on a human intestinal in vitro fermentation model. J Biosci Bioeng 2023:S1389-1723(23)00113-5. [PMID: 37105857 DOI: 10.1016/j.jbiosc.2023.04.002] [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: 12/15/2022] [Revised: 03/03/2023] [Accepted: 04/03/2023] [Indexed: 04/29/2023]
Abstract
Partially hydrolyzed guar gums (PHGGs) are prebiotic soluble dietary fibers. High molecular-weight PHGGs have rapid fermentation and high short-chain fatty acid (SCFA) productivity rates, compared to low molecular-weight PHGGs. Therefore, low molecular-weight PHGGs may have less pronounced prebiotic effects than high molecular-weight PHGGs. However, the effects of PHGGs of different molecular weights on the human intestinal microbiota, as well as their fermentation ability and prebiotic effects, have not been investigated. The aim of this study was to evaluate the effects of two PHGGs of different molecular weights, Sunfiber-R (SF-R; 20 kDa) and Sunfiber-V (SF-V; 5 kDa), on human colonic microbiota and SCFA production. A human intestinal in vitro fermentation model was operated by fecal samples with and without the PHGGs. The addition of 0.2% SF-R or SF-V increased the relative abundance of Bacteroides spp., especially that of Bacteroides uniformis. This increase corresponded to a significant (p = 0.030) and non-significant (p = 0.073) increase in propionate production in response to SF-R and SF-V addition, respectively. Both fibers increased the relative abundance of Faecalibacterium and stimulated an increase in the abundance of unclassified Lachnospiraceae and Bifidobacterium. In conclusion, the low molecular-weight PHGG exerted prebiotic effects on human colonic microbiota to increase SCFA production and bacteria that are beneficial to human health in a manner similar to that of the high molecular-weight forms of PHGG.
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Affiliation(s)
- Daisuke Sasaki
- Graduate School of Science, Technology and Innovation, Kobe University, 1-1 Rokkodai-cho, Nada-ku, Kobe, Hyogo 657-8501, Japan
| | - Kengo Sasaki
- Graduate School of Science, Technology and Innovation, Kobe University, 1-1 Rokkodai-cho, Nada-ku, Kobe, Hyogo 657-8501, Japan
| | - Aya Abe
- Nutrition Division, Taiyo Kagaku Co., Ltd., 1-3 Takaramachi, Yokkaichi, Mie 510-0844, Japan
| | - Makoto Ozeki
- Nutrition Division, Taiyo Kagaku Co., Ltd., 1-3 Takaramachi, Yokkaichi, Mie 510-0844, Japan
| | - Akihiko Kondo
- Graduate School of Science, Technology and Innovation, Kobe University, 1-1 Rokkodai-cho, Nada-ku, Kobe, Hyogo 657-8501, Japan; RIKEN Center for Sustainable Resource Science, 1-7-22 Suehiro-cho, Tsurumi-ku, Yokohama, Kanagawa 230-0045, Japan.
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18
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Morozumi M, Wada Y, Tsuda M, Tabata F, Ehara T, Nakamura H, Miyaji K. Cross-feeding among bifidobacteria on glycomacropeptide. J Funct Foods 2023. [DOI: 10.1016/j.jff.2023.105463] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/11/2023] Open
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19
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Nomura S, Sukowati EW, Shigeno Y, Takahashi M, Kato A, Benno Y, Yamashita F, Mukai H. Blautia coccoides JCM1395 T Achieved Intratumoral Growth with Minimal Inflammation: Evidence for Live Bacterial Therapeutic Potential by an Optimized Sample Preparation and Colony PCR Method. Pharmaceutics 2023; 15:pharmaceutics15030989. [PMID: 36986850 PMCID: PMC10058202 DOI: 10.3390/pharmaceutics15030989] [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: 01/24/2023] [Revised: 03/04/2023] [Accepted: 03/17/2023] [Indexed: 03/30/2023] Open
Abstract
We demonstrate that Blautia coccoides JCM1395T has the potential to be used for tumor-targeted live bacterial therapeutics. Prior to studying its in vivo biodistribution, a sample preparation method for reliable quantitative analysis of bacteria in biological tissues was required. Gram-positive bacteria have a thick outer layer of peptidoglycans, which hindered the extraction of 16S rRNA genes for colony PCR. We developed the following method to solve the issue; the method we developed is as follows. The homogenates of the isolated tissue were seeded on agar medium, and bacteria were isolated as colonies. Each colony was heat-treated, crushed with glass beads, and further treated with restriction enzymes to cleave DNAs for colony PCR. With this method, Blautia coccoides JCM1395T and Bacteroides vulgatus JCM5826T were individually detected from tumors in mice intravenously receiving their mixture. Since this method is very simple and reproducible, and does not involve any genetic modification, it can be applied to exploring a wide range of bacterial species. We especially demonstrate that Blautia coccoides JCM1395T efficiently proliferate in tumors when intravenously injected into tumor-bearing mice. Furthermore, these bacteria showed minimal innate immunological responses, i.e., elevated serum tumor necrosis factor α and interleukin-6, similar to Bifidobacterium sp., which was previously studied as a therapeutic agent with a small immunostimulating effect.
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Affiliation(s)
- Shoko Nomura
- Laboratory for Molecular Delivery and Imaging Technology, RIKEN Center for Biosystems Dynamics Research, Chuo-ku, Kobe 650-0047, Japan
- Department of Drug Delivery Research, Graduate School of Pharmaceutical Sciences, Kyoto University, Sakyo-ku, Kyoto 606-8501, Japan
| | - Erike W Sukowati
- Laboratory for Molecular Delivery and Imaging Technology, RIKEN Center for Biosystems Dynamics Research, Chuo-ku, Kobe 650-0047, Japan
| | - Yuko Shigeno
- Benno Laboratory, RIKEN Baton Zone Program, RIKEN Cluster for Science Technology and Innovation Hab, Wako 351-0198, Japan
| | - Maiko Takahashi
- Laboratory for Molecular Delivery and Imaging Technology, RIKEN Center for Biosystems Dynamics Research, Chuo-ku, Kobe 650-0047, Japan
| | - Akari Kato
- Laboratory for Molecular Delivery and Imaging Technology, RIKEN Center for Biosystems Dynamics Research, Chuo-ku, Kobe 650-0047, Japan
| | - Yoshimi Benno
- Benno Laboratory, RIKEN Baton Zone Program, RIKEN Cluster for Science Technology and Innovation Hab, Wako 351-0198, Japan
| | - Fumiyoshi Yamashita
- Department of Drug Delivery Research, Graduate School of Pharmaceutical Sciences, Kyoto University, Sakyo-ku, Kyoto 606-8501, Japan
| | - Hidefumi Mukai
- Laboratory for Molecular Delivery and Imaging Technology, RIKEN Center for Biosystems Dynamics Research, Chuo-ku, Kobe 650-0047, Japan
- Department of Pharmaceutical Informatics, Graduate School of Biomedical Science, Nagasaki University, Nagasaki 852-8588, Japan
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Tomita T, Fukui H, Morishita D, Maeda A, Makizaki Y, Tanaka Y, Ohno H, Oshima T, Miwa H. Diarrhea-predominant Irritable Bowel Syndrome-like Symptoms in Patients With Quiescent Crohn's Disease: Comprehensive Analysis of Clinical Features and Intestinal Environment Including the Gut Microbiome, Organic Acids, and Intestinal Permeability. J Neurogastroenterol Motil 2023; 29:102-112. [PMID: 36606441 PMCID: PMC9837540 DOI: 10.5056/jnm22027] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/07/2022] [Revised: 07/06/2022] [Accepted: 08/06/2022] [Indexed: 01/07/2023] Open
Abstract
Background/Aims Diarrhea-predominant irritable bowel syndrome (IBS-D)-like symptoms frequently occur in patients with quiescent Crohn's disease (CD). To investigate the factors underlying IBS-D-like symptoms in patients with quiescent CD, we performed a comprehensive analysis of the clinical features and intestinal environment in those patients. Methods We performed a prospective observational study of 27 patients with quiescent CD (CD activity index [CDAI] ≤ 150; C-reactive protein ≤ 0.3 mg/dL). The presence and severity of IBS-D-like symptoms, health-related quality of life, disease-specific quality of life, and status of depression and anxiety were evaluated. The level of intestinal permeability, fecal calprotectin and organic acids and the profiles of gut microbiome were analyzed. Results Twelve of the 27 patients with quiescent CD (44.4%) had IBS-like symptoms, and these patients showed a significantly higher CDAI, IBS severity index and anxiety score than those without. The inflammatory bowel disease questionnaire score was significantly lower in the patients with IBS-D-like symptoms. There were no significant differences in small intestinal/colonic permeability or the levels of organic acids between the patients with and without IBS-D-like symptoms. Fusicatenibacter was significantly less abundant in the patients with IBS-D-like symptoms whereas their fecal calprotectin level was significantly higher (384.8 ± 310.6 mg/kg) than in patients without (161.0 ± 251.0 mg/kg). The receiver operating characteristic curve constructed to predict IBS-D-like symptoms in patients with quiescent CD using the fecal calprotectin level (cutoff, 125 mg/kg) showed a sensitivity and specificity of 73.3% and 91.7%, respectively. Conclusion Minimal inflammation is closely associated with the development of IBS-D-like symptoms in patients with quiescent CD.
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Affiliation(s)
- Toshihiko Tomita
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Hyogo College of Medicine, Nishinomiya, Japan
| | - Hirokazu Fukui
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Hyogo College of Medicine, Nishinomiya, Japan,Correspondence: Hirokazu Fukui, MD, PhD, Division of Gastroenterology and Hepatology, Department of Internal Medicine, Hyogo College of Medicine, l-1, Mukogawa, Nishinomiya, 663-8501, Japan, Tel: +81-798-45-6662, Fax: +81-798-45-6661, E-mail:
| | - Daisuke Morishita
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Hyogo College of Medicine, Nishinomiya, Japan
| | - Ayako Maeda
- R&D Center, Biofermin Pharmaceutical Co, Ltd, Kobe, Japan
| | | | - Yoshiki Tanaka
- R&D Center, Biofermin Pharmaceutical Co, Ltd, Kobe, Japan
| | - Hiroshi Ohno
- R&D Center, Biofermin Pharmaceutical Co, Ltd, Kobe, Japan
| | - Tadayuki Oshima
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Hyogo College of Medicine, Nishinomiya, Japan
| | - Hiroto Miwa
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Hyogo College of Medicine, Nishinomiya, Japan
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Mills S, Yang B, Smith GJ, Stanton C, Ross RP. Efficacy of Bifidobacterium longum alone or in multi-strain probiotic formulations during early life and beyond. Gut Microbes 2023; 15:2186098. [PMID: 36896934 PMCID: PMC10012958 DOI: 10.1080/19490976.2023.2186098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/03/2022] [Accepted: 02/24/2023] [Indexed: 03/11/2023] Open
Abstract
The significance of Bifidobacterium to human health can be appreciated from its early colonization of the neonatal gut, where Bifidobacterium longum represents the most abundant species. While its relative abundance declines with age, it is further reduced in several diseases. Research into the beneficial properties of B. longum has unveiled a range of mechanisms, including the production of bioactive molecules, such as short-chain fatty acids, polysaccharides, and serine protease inhibitors. From its intestinal niche, B. longum can have far-reaching effects in the body influencing immune responses in the lungs and even skin, as well as influencing brain activity. In this review, we present the biological and clinical impacts of this species on a range of human conditions beginning in neonatal life and beyond. The available scientific evidence reveals a strong rationale for continued research and further clinical trials that investigate the ability of B. longum to treat or prevent a range of diseases across the human lifespan.
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Affiliation(s)
- Susan Mills
- APC Microbiome Ireland, University College Cork, Cork, Ireland
| | - Bo Yang
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, China
| | | | - Catherine Stanton
- APC Microbiome Ireland, University College Cork, Cork, Ireland
- Food Biosciences Department, Teagasc Food Research Centre, Co Cork, Ireland
| | - R. Paul Ross
- APC Microbiome Ireland, University College Cork, Cork, Ireland
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22
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Hashikura N, Murakami R, Sakurai T, Horigome A, Toda K, Xiao JZ, Odamaki T. Synbiotics of Bifidobacterium breve MCC1274 and lactulose enhances production of tryptophan metabolites in fermented human fecal communities. Food Res Int 2023; 163:112308. [PMID: 36596205 DOI: 10.1016/j.foodres.2022.112308] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2022] [Revised: 12/02/2022] [Accepted: 12/03/2022] [Indexed: 12/13/2022]
Abstract
Probiotics and prebiotics have beneficial effects on host physiology via metabolites from the gut microbiota in addition to their own. Here, we used a pH-controlled single-batch fermenter as a human gut microbiota model. We conducted fecal fermentation with Bifidobacterium breve MCC1274 (probiotic), lactulose (prebiotic), or a combination of both (synbiotic) to evaluate their influence on the gut environment. Fecal inoculum without the probiotic and prebiotic was used as the control. Principal coordinate analysis (PCoA), based on the composition of gut microbiota, showed a significant difference among the groups. The relative abundance of Bifidobacterium was significantly higher in the synbiotic group, compared to that in the other three treatment groups. The relative abundance of Blautia was the highest in the control group among the four groups. CE-TOFMS and LC-TOFMS showed that the number of metabolites detected in the synbiotic group was the highest (352 in total); 29 of the 310 hydrophilic metabolites and 17 of the 107 lipophilic metabolites were significantly different among the four groups in the Kruskal-Wallis test. A clustering based on 46 metabolites indicated that tryptophan-metabolites such as indole-3-lactic acid (ILA), indole-3-ethanol, and indole-3-carboxaldehyde, were included in a sub cluster composed of metabolites enriched in the synbiotic group. Spermidine, a major polyamine, was enriched in the two groups supplemented with the probiotic whereas spermine was enriched only in the synbiotic group. Not all metabolites enriched in the probiotic and/or synbiotic groups were found in the monocultures of the probiotic strain with or without the prebiotics. This implies that some of the metabolites were produced through the interaction of the fecal microbiota with the inoculated probiotic strain. Co-abundance networking analysis indicated the differences in the correlations between the relative abundance of the fecal microbiota genus and the tryptophan metabolites in each group. There was a strong correlation between ldh4 gene abundance and ILA concentration in the fecal fermentation. The copy number of ldh4 gene was significantly higher in the groups with the probiotic than that in the control group. In conclusion, synbiotics could enhance the production of signaling molecules in the gut environment. Our results provide an insight into more effective administration of probiotics at the molecular level.
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Affiliation(s)
- Nanami Hashikura
- Next Generation Science Institute, R&D Division, Morinaga Milk Industry Co., Ltd., 5-1-83 Higashihara, Zama, Kanagawa 252-8583, Japan
| | - Ryuta Murakami
- Next Generation Science Institute, R&D Division, Morinaga Milk Industry Co., Ltd., 5-1-83 Higashihara, Zama, Kanagawa 252-8583, Japan
| | - Takuma Sakurai
- Next Generation Science Institute, R&D Division, Morinaga Milk Industry Co., Ltd., 5-1-83 Higashihara, Zama, Kanagawa 252-8583, Japan
| | - Ayako Horigome
- Next Generation Science Institute, R&D Division, Morinaga Milk Industry Co., Ltd., 5-1-83 Higashihara, Zama, Kanagawa 252-8583, Japan
| | - Kazuya Toda
- Next Generation Science Institute, R&D Division, Morinaga Milk Industry Co., Ltd., 5-1-83 Higashihara, Zama, Kanagawa 252-8583, Japan
| | - Jin-Zhong Xiao
- Next Generation Science Institute, R&D Division, Morinaga Milk Industry Co., Ltd., 5-1-83 Higashihara, Zama, Kanagawa 252-8583, Japan
| | - Toshitaka Odamaki
- Next Generation Science Institute, R&D Division, Morinaga Milk Industry Co., Ltd., 5-1-83 Higashihara, Zama, Kanagawa 252-8583, Japan.
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Probiotic Bifidobacteria Mitigate the Deleterious Effects of para-Cresol in a Drosophila melanogaster Toxicity Model. mSphere 2022; 7:e0044622. [PMID: 36321825 PMCID: PMC9769938 DOI: 10.1128/msphere.00446-22] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
Abstract
Renal impairment associated with chronic kidney disease (CKD) causes the buildup of uremic toxins that are deleterious to patient health. Current therapies that manage toxin accumulation in CKD offer an incomplete therapeutic effect against toxins such as para-cresol (p-cresol) and p-cresyl sulfate. Probiotic therapies can exploit the wealth of microbial diversity to reduce toxin accumulation. Using in vitro culture techniques, strains of lactobacilli and bifidobacteria from a 24-strain synbiotic were investigated for their ability to remove p-cresol. Four strains of bifidobacteria internalized p-cresol from the extracellular environment. The oral supplementation of these toxin-clearing probiotics was more protective than control strains in a Drosophila melanogaster toxicity model. Bifidobacterial supplementation was also associated with higher abundance of lactobacilli in the gut microbiota of p-cresol-exposed flies. The present findings suggest that these strains might reduce p-cresol in the gut in addition to increasing the prevalence of other beneficial bacteria, such as lactobacilli, and should be tested clinically to normalize the dysbiotic gut microbiota observed in CKD patients. IMPORTANCE Chronic kidney disease (CKD) affects approximately 10% of the global population and has limited treatment options. The accumulation of gut microbiota-derived uremic toxins, such as para-cresol (p-cresol) and p-cresyl sulfate, is associated with the onset of comorbidities (i.e., atherosclerosis and cognitive disorders) in CKD. Unfortunately, dialysis, the gold standard therapy is unable to remove these toxins from the bloodstream due to their highly protein-bound nature. Some strains of Bifidobacterium have metabolic properties that may be useful in managing uremic toxicity. Using a Drosophila model, the present work highlights why dosing with certain probiotic strains may be clinically useful in CKD management.
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24
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Traversi D, Scaioli G, Rabbone I, Carletto G, Ferro A, Franchitti E, Carrera D, Savastio S, Cadario F, Siliquini R, Cerutti F, Durazzo M. Gut microbiota, behavior, and nutrition after type 1 diabetes diagnosis: A longitudinal study for supporting data in the metabolic control. Front Nutr 2022; 9:968068. [PMID: 36562032 PMCID: PMC9763620 DOI: 10.3389/fnut.2022.968068] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2022] [Accepted: 11/15/2022] [Indexed: 12/12/2022] Open
Abstract
Introduction Type 1 diabetes (T1D) risk involves genetic susceptibility but also epigenetics, environment, and behaviors. Appropriate metabolic control, especially quickly after the diagnosis, is crucial for the patient quality of life. Methods This study aimed to produce a quantitative comparison of the behavior, nutrition habits, and gut microbiota composition between the onset and the 1-year follow-up in 35 children with T1D. Results and discussion At follow-up, with the metabolic control, many parameters improved significantly, with respect to the onset, such as glycated hemoglobin (-19%), body mass index (BMI), and also nutritional behaviors, such as normal calorie intake (+6%), carbohydrate intake (-12%), extra portion request (-4%), and meals distribution during the day. Moreover, glycated hemoglobin decrement correlated with both total and rapid absorption carbohydrate intake (Spearman's rho = 0.288, 95% CI 0.066-0.510, p = 0.013), showing as the nutritional behavior supported the insulin therapy efficiency. The next-generation sequencing (NGS) analysis of microbiota revealed abundance differences for Ruminococcus bromii and Prevotella copri (higher at onset, p < 0.001) and the genera Succinivibrio and Faecalibacterium (lower at onset, p < 0.001), as a consequence of nutritional behavior, but it was not the only changing driver. The qRT-PCR analysis showed significant variations, in particular for Bacteroidetes and Bifidobacterium spp. (+1.56 log gene copies/g stool at follow-up, p < 0.001). During the year, in 11% of the patients, severe clinical episodes occurred (hypoglycemic or ketoacidosis). The likelihood of a severe hypoglycemic episode was modulated when the Methanobrevibacter smithii amount increased (odds ratio 3.7, 95% CI 1.2-11.4, p = 0.026). Integrated evaluation, including nutritional behavior and microbiota composition, could be considered predictive of the metabolic control management for children cohort with a recent diagnosis of T1D.
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Affiliation(s)
- Deborah Traversi
- Department of Public Health and Pediatrics, University of Turin, Torino, Italy,*Correspondence: Deborah Traversi
| | - Giacomo Scaioli
- Department of Public Health and Pediatrics, University of Turin, Torino, Italy
| | - Ivana Rabbone
- S.S.V.D. Endocrinology and Diabetology, O.I.R.M., Azienda Ospedaliera Città della Salute e della Scienza, Turin, Italy,Department of Health Science, Azienda Ospedaliero Universitaria Maggiore della Carità, University of Eastern Piedmont Amadeo Avogadro, Novara, Italy
| | - Giulia Carletto
- Department of Public Health and Pediatrics, University of Turin, Torino, Italy
| | - Arianna Ferro
- S.C.U. Medicina Interna 3, Azienda Ospedaliera Città della Salute e della Scienza di Torino, Turin, Italy
| | - Elena Franchitti
- Department of Public Health and Pediatrics, University of Turin, Torino, Italy
| | - Deborah Carrera
- Paediatric Endocrinology, Azienda Ospedaliero Universitaria Maggiore della Carità, Novara, Italy
| | - Silvia Savastio
- Paediatric Endocrinology, Azienda Ospedaliero Universitaria Maggiore della Carità, Novara, Italy
| | - Francesco Cadario
- Paediatric Endocrinology, Azienda Ospedaliero Universitaria Maggiore della Carità, Novara, Italy
| | - Roberta Siliquini
- Department of Public Health and Pediatrics, University of Turin, Torino, Italy
| | - Franco Cerutti
- Department of Public Health and Pediatrics, University of Turin, Torino, Italy,S.S.V.D. Endocrinology and Diabetology, O.I.R.M., Azienda Ospedaliera Città della Salute e della Scienza, Turin, Italy
| | - Marilena Durazzo
- S.C.U. Medicina Interna 3, Azienda Ospedaliera Città della Salute e della Scienza di Torino, Turin, Italy
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25
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Chen H, Chen H, Nan S, Liu H, Chen L, Yu L. Investigation of Microplastics in Digestion System: Effect on Surface Microstructures and Probiotics. BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2022; 109:882-892. [PMID: 35920852 DOI: 10.1007/s00128-022-03571-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2022] [Accepted: 06/23/2022] [Indexed: 06/15/2023]
Abstract
There are increasingly attentions on the pollution from microplastics, especially the impact on human health. This work focuses on one hand the effect of digestion system on the surface microstructures of microplastics from the most popular sources such as polypropylene, polyethylene, polyethylene terephthalate, polystyrene and polyvinyl chloride. On the other hand, how these microplastic affect probiotics in digestion system was also investigated to evaluate their toxicity on health. All the samples were treated by in vitro simulating digestion consisting of three phases: oral, gastric and intestinal. There were no physical differences observed by both Scanning Electronic Microscopy and Atomic Force Microscopy, and no significant chemical changes detected by both Fourier transform infrared spectroscopy and X-ray photoelectron spectroscopy after digestion treatment. The effect of these microplastics on tested strains were investigated by in vitro culture method and results showed that polystyrene microplastics could inhibit the growth of the Lactobacillus significantly. The results indicated that the digestion system could not decompose microplastics, even on the surfaces, since plastics are inert due to their low chemical reactivity, but the microplastics might lead to imbalance of intestinal microbiota.
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Affiliation(s)
- Hui Chen
- Centre for Polymers From Renewable Resources, School of Food Science and Engineering, SCUT, Guangzhou, 510640, China
| | - Hongmei Chen
- Centre for Polymers From Renewable Resources, School of Food Science and Engineering, SCUT, Guangzhou, 510640, China
| | - Shugang Nan
- Centre for Polymers From Renewable Resources, School of Food Science and Engineering, SCUT, Guangzhou, 510640, China
| | - Hongsheng Liu
- Centre for Polymers From Renewable Resources, School of Food Science and Engineering, SCUT, Guangzhou, 510640, China
- Overseas Expertise Introduction Center for Discipline Innovation of Food Nutrition and Human Health, Guangzhou, China
| | - Ling Chen
- Centre for Polymers From Renewable Resources, School of Food Science and Engineering, SCUT, Guangzhou, 510640, China
| | - Long Yu
- Centre for Polymers From Renewable Resources, School of Food Science and Engineering, SCUT, Guangzhou, 510640, China.
- Overseas Expertise Introduction Center for Discipline Innovation of Food Nutrition and Human Health, Guangzhou, China.
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26
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Combined IgE neutralization and Bifidobacterium longum supplementation reduces the allergic response in models of food allergy. Nat Commun 2022; 13:5669. [PMID: 36167830 PMCID: PMC9515155 DOI: 10.1038/s41467-022-33176-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2020] [Accepted: 09/06/2022] [Indexed: 11/09/2022] Open
Abstract
IgE is central to the development of allergic diseases, and its neutralization alleviates allergic symptoms. However, most of these antibodies are based on IgG1, which is associated with an increased risk of fragment crystallizable-mediated side effects. Moreover, omalizumab, an anti-IgE antibody approved for therapeutic use, has limited benefits for patients with high IgE levels. Here, we assess a fusion protein with extracellular domain of high affinity IgE receptor, FcεRIα, linked to a IgD/IgG4 hybrid Fc domain we term IgETRAP, to reduce the risk of IgG1 Fc-mediated side effects. IgETRAP shows enhanced IgE binding affinity compared to omalizumab. We also see an enhanced therapeutic effect of IgETRAP in food allergy models when combined with Bifidobacterium longum, which results in mast cell number and free IgE levels. The combination of IgETRAP and B. longum may therefore represent a potent treatment for allergic patients with high IgE levels. IgE is a critical component of the allergic response and therapeutic targeting can alleviate symptomology. Here the authors propose the combined use of Bifidobacterium longum and a FcεRIα extracellular domain linked to a IgD/IgG4 hybrid Fc domain fusion protein called IgETRAP and show reduction of mast cell and IgE levels in models of food allergy.
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27
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Ricci L, Mackie J, Donachie GE, Chapuis A, Mezerová K, Lenardon MD, Brown AJP, Duncan SH, Walker AW. Human gut bifidobacteria inhibit the growth of the opportunistic fungal pathogen Candida albicans. FEMS Microbiol Ecol 2022; 98:fiac095. [PMID: 36007932 PMCID: PMC9486989 DOI: 10.1093/femsec/fiac095] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Revised: 07/29/2022] [Accepted: 08/23/2022] [Indexed: 11/19/2022] Open
Abstract
The human gut microbiota protects the host from invading pathogens and the overgrowth of indigenous opportunistic species via a process called colonization resistance. Here, we investigated the antagonistic activity of human gut bacteria towards Candida albicans, an opportunistic fungal pathogen that can cause severe infections in susceptible individuals. Coculture batch incubations of C. albicans in the presence of faecal microbiota from six healthy individuals revealed varying levels of inhibitory activity against C. albicans. 16S rRNA gene amplicon profiling of these faecal coculture bacterial communities showed that the Bifidobacteriaceae family, and Bifidobacterium adolescentis in particular, were most correlated with antagonistic activity against C. albicans. Follow-up mechanistic studies performed under anaerobic conditions confirmed that culture supernatants of Bifidobacterium species, particularly B. adolescentis, inhibited C. albicans in vitro. Fermentation acids (FA), including acetate and lactate, present in the bifidobacterial supernatants were important contributors to inhibitory activity. However, increasing the pH of both bacterial supernatants and mixtures of FA reduced their anti-Candida effects, indicating a combinatorial effect of prevailing pH and FA. This work, therefore, demonstrates potential mechanisms underpinning gut microbiome-mediated colonization resistance against C. albicans, and identifies particularly inhibitory components such as bifidobacteria and FA as targets for further study.
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Affiliation(s)
- Liviana Ricci
- Rowett Institute, University of Aberdeen, Aberdeen, AB25 2ZD, United Kingdom
- CIBIO - Department of Cellular, Computational and Integrative Biology, University of Trento, Trento, 38123, Italy
| | - Joanna Mackie
- Aberdeen Fungal Group, Institute of Medical Sciences, University of Aberdeen, Aberdeen, AB25 2ZD, United Kingdom
| | - Gillian E Donachie
- Rowett Institute, University of Aberdeen, Aberdeen, AB25 2ZD, United Kingdom
| | - Ambre Chapuis
- Aberdeen Fungal Group, Institute of Medical Sciences, University of Aberdeen, Aberdeen, AB25 2ZD, United Kingdom
| | - Kristýna Mezerová
- Department of Microbiology, Faculty of Medicine and Dentistry, Palacký University Olomouc, Olomouc, 77515, Czech Republic
| | - Megan D Lenardon
- Aberdeen Fungal Group, Institute of Medical Sciences, University of Aberdeen, Aberdeen, AB25 2ZD, United Kingdom
- School of Biotechnology and Biomolecular Sciences, University of New South Wales, Sydney, NSW 2052, Australia
| | - Alistair J P Brown
- Aberdeen Fungal Group, Institute of Medical Sciences, University of Aberdeen, Aberdeen, AB25 2ZD, United Kingdom
- MRC Centre for Medical Mycology, University of Exeter, Exeter, EX4 4QD, United Kingdom
| | - Sylvia H Duncan
- Rowett Institute, University of Aberdeen, Aberdeen, AB25 2ZD, United Kingdom
| | - Alan W Walker
- Rowett Institute, University of Aberdeen, Aberdeen, AB25 2ZD, United Kingdom
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28
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Sakai Y, Ochi H, Tanaka M. Lactulose Ingestion Induces a Rapid Increase in Genus Bifidobacterium in Healthy Japanese: A Randomised, Double-Blind, Placebo-Controlled Crossover Trial. Microorganisms 2022; 10:1719. [PMID: 36144321 PMCID: PMC9506086 DOI: 10.3390/microorganisms10091719] [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] [Received: 07/06/2022] [Revised: 08/22/2022] [Accepted: 08/23/2022] [Indexed: 12/02/2022] Open
Abstract
Oral administration of a low dose of lactulose increases the abundance of genus Bifidobacterium in the large intestine; however, the details of the daily variation in Bifidobacterium have not been researched. To observe how the intestinal microbiota, including Bifidobacterium, change, especially immediately after the initiation of ingestion, we conducted a randomised, placebo-controlled, double-blind crossover study of ingestion of 4 g lactulose/day for 2 weeks in 36 healthy Japanese (including males and females). The primary outcome was the percentage of Bifidobacterium in the faecal bacteria. In the lactulose-treatment group, the percentage of Bifidobacterium was already significantly higher 2 days after starting lactulose ingestion than in the placebo group (20.5 ± 1.2% vs. 17.1 ± 1.2%, p = 0.021). Significant differences were maintained, gradually widening, until the end of the 2-week intervention period. There were significant increases in the percentage and the number of Bifidobacterium with ingestion of 4 g lactulose/day for 2 weeks, but no significant changes in the beta diversity of the intestinal microbiota between lactulose and placebo ingestion. The percentage of Bifidobacterium in the faecal bacteria returned to its original level within a week of the end of intervention with lactulose.
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Affiliation(s)
- Yohei Sakai
- Food Ingredients & Technology Institute, R&D Division, Morinaga Milk Industry Co., Ltd., 5-1-83 Higashihara, Zama, Kanagawa 252-8583, Japan
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29
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Seki N, Kimizuka T, Gondo M, Yamaguchi G, Sugiura Y, Akiyama M, Yakabe K, Uchiyama J, Higashi S, Haneda T, Suematsu M, Hase K, Kim YG. D-tryptophan suppresses enteric pathogens and pathobionts and prevents colitis by modulating microbial tryptophan metabolism. iScience 2022; 25:104838. [PMID: 35996581 PMCID: PMC9391578 DOI: 10.1016/j.isci.2022.104838] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Revised: 05/17/2022] [Accepted: 07/21/2022] [Indexed: 11/17/2022] Open
Abstract
D-Amino acids (D-AAs) have various functions in mammals and microbes. D-AAs are produced by gut microbiota and can act as potent bactericidal molecules. Thus, D-AAs regulate the ecological niche of the intestine; however, the actual impacts of D-AAs in the gut remain unknown. In this study, we show that D-Tryptophan (D-Trp) inhibits the growth of enteric pathogen and colitogenic pathobionts. The growth of Citrobacter rodentium in vitro is strongly inhibited by D-Trp treatment. Moreover, D-Trp protects mice from lethal C. rodentium infection via reduction of the pathogen. Additionally, D-Trp prevents the development of experimental colitis by the depletion of specific microbes in the intestine. D-Trp increases the intracellular level of indole acrylic acid (IA), a key molecule that determines the susceptibility of enteric microbes to D-Trp. Treatment with IA improves the survival of mice infected with C. rodentium. Hence, D-Trp could act as a gut environmental modulator that regulates intestinal homeostasis. D-Trp inhibits the growth of Citrobacter rodentium in vitro and in vivo D-Trp suppresses experimental colitis by the depletion of specific gut microbes IA is the metabolite that determines the susceptibility of enteric microbes to D-Trp
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Affiliation(s)
- Natsumi Seki
- Research Center for Drug Discovery, Faculty of Pharmacy and Graduate School of Pharmaceutical Sciences, Keio University, Tokyo 105-8512, Japan
- Department of Biochemistry, Faculty of Pharmacy and Graduate School of Pharmaceutical Sciences, Keio University, Tokyo 105-8512, Japan
| | - Tatsuki Kimizuka
- Research Center for Drug Discovery, Faculty of Pharmacy and Graduate School of Pharmaceutical Sciences, Keio University, Tokyo 105-8512, Japan
- Department of Biochemistry, Faculty of Pharmacy and Graduate School of Pharmaceutical Sciences, Keio University, Tokyo 105-8512, Japan
| | - Monica Gondo
- Research Center for Drug Discovery, Faculty of Pharmacy and Graduate School of Pharmaceutical Sciences, Keio University, Tokyo 105-8512, Japan
- Department of Biochemistry, Faculty of Pharmacy and Graduate School of Pharmaceutical Sciences, Keio University, Tokyo 105-8512, Japan
| | - Genki Yamaguchi
- Research Center for Drug Discovery, Faculty of Pharmacy and Graduate School of Pharmaceutical Sciences, Keio University, Tokyo 105-8512, Japan
- Department of Biochemistry, Faculty of Pharmacy and Graduate School of Pharmaceutical Sciences, Keio University, Tokyo 105-8512, Japan
| | - Yuki Sugiura
- Department of Biochemistry, Keio University School of Medicine, Tokyo 160-8582, Japan
| | - Masahiro Akiyama
- Research Center for Drug Discovery, Faculty of Pharmacy and Graduate School of Pharmaceutical Sciences, Keio University, Tokyo 105-8512, Japan
| | - Kyosuke Yakabe
- Research Center for Drug Discovery, Faculty of Pharmacy and Graduate School of Pharmaceutical Sciences, Keio University, Tokyo 105-8512, Japan
- Department of Biochemistry, Faculty of Pharmacy and Graduate School of Pharmaceutical Sciences, Keio University, Tokyo 105-8512, Japan
| | - Jun Uchiyama
- Research Center for Drug Discovery, Faculty of Pharmacy and Graduate School of Pharmaceutical Sciences, Keio University, Tokyo 105-8512, Japan
- Department of Biochemistry, Faculty of Pharmacy and Graduate School of Pharmaceutical Sciences, Keio University, Tokyo 105-8512, Japan
| | - Seiichiro Higashi
- Co-Creation Center, Meiji Holdings Co., Ltd., 1-29-1 Nanakuni, Hachiouji, Tokyo 192-0919, Japan
| | - Takeshi Haneda
- Laboratory of Microbiology, School of Pharmacy, Kitasato University, Tokyo 108-8641, Japan
| | - Makoto Suematsu
- Department of Biochemistry, Keio University School of Medicine, Tokyo 160-8582, Japan
| | - Koji Hase
- Department of Biochemistry, Faculty of Pharmacy and Graduate School of Pharmaceutical Sciences, Keio University, Tokyo 105-8512, Japan
| | - Yun-Gi Kim
- Research Center for Drug Discovery, Faculty of Pharmacy and Graduate School of Pharmaceutical Sciences, Keio University, Tokyo 105-8512, Japan
- Corresponding author
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Kato S, Nagasawa T, Uehara O, Shimizu S, Sugiyama N, Hasegawa-Nakamura K, Noguchi K, Hatae M, Kakinoki H, Furuichi Y. Increase in Bifidobacterium is a characteristic of the difference in the salivary microbiota of pregnant and non-pregnant women. BMC Oral Health 2022; 22:260. [PMID: 35764953 PMCID: PMC9238123 DOI: 10.1186/s12903-022-02293-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Accepted: 06/21/2022] [Indexed: 12/30/2022] Open
Abstract
Background The establishment of symbiotic microbiota in pregnant women is important for both the mother and her offspring. Little is known about the salivary symbiotic bacteria in pregnancy, and analysis of composition of microbiome (ANCOM) is useful to detect small differences in the number of bacteria. The aim of this study was to investigate the differences in the salivary bacteria between healthy pregnant and non-pregnant women using ANCOM. Methods Unstimulated saliva samples were collected from 35 healthy pregnant women at 35 weeks gestation and 30 healthy non-pregnant women during menstruation. All participants underwent a periodontal examination. Estradiol and progesterone levels were examined by enzyme-linked immunosorbent assay. DNA extracted from the saliva was assessed by 16S ribosomal RNA amplicon sequencing and real-time PCR. Results Salivary estradiol and progesterone levels were significantly increased in pregnant women. The alpha and beta diversities were higher in pregnant women than in non-pregnant women. The largest effect size difference noted when the microbiota of the pregnant and non-pregnant women were analyzed was that for Bifidobacteriales. Levels of Bifidobacterium dentium, but not of Bifidobacterium adolescentis, were significantly increased in pregnant women, and the levels were significantly correlated with progesterone concentration. Conclusion The results suggest that Bifidobacterium and progesterone levels are elevated in the saliva of healthy pregnant women compared with non-pregnant women.
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Akritidou T, Smet C, Akkermans S, Tonti M, Williams J, Van de Wiele T, Van Impe JFM. A protocol for the cultivation and monitoring of ileal gut microbiota surrogates. J Appl Microbiol 2022; 133:1919-1939. [PMID: 35751580 DOI: 10.1111/jam.15684] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Revised: 06/10/2022] [Accepted: 06/21/2022] [Indexed: 11/28/2022]
Abstract
AIMS This research aimed to develop and validate a cultivation and monitoring protocol that is suitable for a surrogate microbial community that accounts for the gut microbiota of the ileum of the small intestine. METHODS AND RESULTS Five bacterial species have been selected as representatives of the ileal gut microbiota and a general anaerobic medium (MS-BHI, as minimally supplemented BHI) has been constructed and validated against BCCM/LGM recommended and commercial media. Moreover, appropriate selective/differential media have been investigated for monitoring each ileal gut microbiota surrogate. Results showed that MS-BHI was highly efficient in displaying individual and collective behavior of the ileal gut microbiota species, when compared with other types of media. Likewise, the selective/differential media managed to identify and describe the behavior of their targeted species. CONCLUSIONS MS-BHI renders a highly efficient, inexpensive and easy-to-prepare cultivation and enumeration alternative for the surrogate ileal microbiota species. Additionally, the selective/differential media can identify and quantify the bacteria of the surrogate ileal microbial community. SIGNIFICANCE AND IMPACT OF STUDY The selected gut microbiota species can represent an in vitro ileal community, forming the basis for future studies on small intestinal microbiota. MS-BHI and the proposed monitoring protocol can be used as a standard for gut microbiota studies that utilize conventional microbiological techniques.
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Affiliation(s)
- Theodora Akritidou
- BioTeC+, Chemical and Biochemical Process Technology and Control, Department of Chemical Engineering, KU Leuven, Ghent, Belgium
| | - Cindy Smet
- BioTeC+, Chemical and Biochemical Process Technology and Control, Department of Chemical Engineering, KU Leuven, Ghent, Belgium
| | - Simen Akkermans
- BioTeC+, Chemical and Biochemical Process Technology and Control, Department of Chemical Engineering, KU Leuven, Ghent, Belgium
| | - Maria Tonti
- BioTeC+, Chemical and Biochemical Process Technology and Control, Department of Chemical Engineering, KU Leuven, Ghent, Belgium
| | - Jennifer Williams
- School of Biological Sciences, Faculty of Science, Dublin Institute of Technology, Dublin, Ireland
| | - Tom Van de Wiele
- Laboratory of Microbial Ecology and Technology, Faculty of Bioscience Engineering, Ghent University, Gent, Belgium
| | - Jan F M Van Impe
- BioTeC+, Chemical and Biochemical Process Technology and Control, Department of Chemical Engineering, KU Leuven, Ghent, Belgium
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Longitudinal alterations of the gut mycobiota and microbiota on COVID-19 severity. BMC Infect Dis 2022; 22:572. [PMID: 35751044 PMCID: PMC9233337 DOI: 10.1186/s12879-022-07358-7] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2021] [Accepted: 04/01/2022] [Indexed: 12/15/2022] Open
Abstract
Background The impact of SARS-CoV-2 infection on the gut fungal (mycobiota) and bacterial (microbiota) communities has been elucidated individually. This study analyzed both gut mycobiota and microbiota and their correlation in the COVID-19 patients with severe and mild conditions and follow-up to monitor their alterations after recovery. Methods We analyzed the gut mycobiota and microbiota by bacterial 16S and fungal ITS1 metagenomic sequencing of 40 severe patients, 38 mild patients, and 30 healthy individuals and reanalyzed those of 10 patients with severe COVID-19 approximately 6 months after discharge. Results The mycobiota of the severe and mild groups showed lower diversity than the healthy group, and in some, characteristic patterns dominated by a single fungal species, Candida albicans, were detected. Lower microbial diversity in the severe group was observed, but no differences in its diversity or community structure were detected between the mild and healthy groups. The microbiota of the severe group was characterized by an increase in Enterococcus and Lactobacillus, and a decrease in Faecalibacterium and Bacteroides. The abundance of Candida was positively correlated with that of Enterococcus in patients with COVID-19. After the recovery of severe patients, alteration of the microbiota remained, but the mycobiota recovered its diversity comparable to that of mild and healthy groups. Conclusion In mild cases, the microbiota is stable during SARS-CoV-2 infection, but in severe cases, alterations persist for 6 months after recovery. Supplementary Information The online version contains supplementary material available at 10.1186/s12879-022-07358-7.
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Liu J, Li W, Yao C, Yu J, Zhang H. Comparative genomic analysis revealed genetic divergence between Bifidobacterium catenulatum subspecies present in infant versus adult guts. BMC Microbiol 2022; 22:158. [PMID: 35710325 PMCID: PMC9202165 DOI: 10.1186/s12866-022-02573-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2022] [Accepted: 06/06/2022] [Indexed: 12/08/2022] Open
Abstract
BACKGROUND The two subspecies of Bifidobacterium catenulatum, B. catenulatum subsp. kashiwanohense and B. catenulatum subsp. catenulatum, are usually from the infant and adult gut, respectively. However, the genomic analysis of their functional difference and genetic divergence has been rare. Here, 16 B. catenulatum strains, including 2 newly sequenced strains, were analysed through comparative genomics. RESULTS A phylogenetic tree based on 785 core genes indicated that the two subspecies of B. catenulatum were significantly separated. The comparison of genomic characteristics revealed that the two subspecies had significantly different genomic sizes (p < 0.05) but similar GC contents. The functional comparison revealed the most significant difference in genes of carbohydrate utilisation. Carbohydrate-active enzymes (CAZyme) present two clustering patterns in B. catenulatum. The B. catenulatum subsp. kashiwanohense specially including the glycoside hydrolases 95 (GH95) and carbohydrate-binding modules 51 (CBM51) families involved in the metabolism of human milk oligosaccharides (HMO) common in infants, also, the corresponding fucosylated HMO gene clusters were detected. Meanwhile, B. catenulatum subsp. catenulatum rich in GH3 may metabolise more plant-derived glycan in the adult intestine. CONCLUSIONS These findings provide genomic evidence of carbohydrate utilisation bias, which may be a key cause of the genetic divergence of two B. catenulatum subspecies.
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Affiliation(s)
- Jiaqi Liu
- Key Laboratory of Dairy Biotechnology and Engineering (Inner Mongolia Agricultural University), Ministry of Education; Key Laboratory of Dairy Products Processing, Ministry of Agriculture and Rural Affairs; Inner Mongolia Key Laboratory of Dairy Biotechnology and Engineering, Inner Mongolia Agricultural University, Hohhot, China
| | - Weicheng Li
- Key Laboratory of Dairy Biotechnology and Engineering (Inner Mongolia Agricultural University), Ministry of Education; Key Laboratory of Dairy Products Processing, Ministry of Agriculture and Rural Affairs; Inner Mongolia Key Laboratory of Dairy Biotechnology and Engineering, Inner Mongolia Agricultural University, Hohhot, China
| | - Caiqing Yao
- Key Laboratory of Dairy Biotechnology and Engineering (Inner Mongolia Agricultural University), Ministry of Education; Key Laboratory of Dairy Products Processing, Ministry of Agriculture and Rural Affairs; Inner Mongolia Key Laboratory of Dairy Biotechnology and Engineering, Inner Mongolia Agricultural University, Hohhot, China
| | - Jie Yu
- Key Laboratory of Dairy Biotechnology and Engineering (Inner Mongolia Agricultural University), Ministry of Education; Key Laboratory of Dairy Products Processing, Ministry of Agriculture and Rural Affairs; Inner Mongolia Key Laboratory of Dairy Biotechnology and Engineering, Inner Mongolia Agricultural University, Hohhot, China
| | - Heping Zhang
- Key Laboratory of Dairy Biotechnology and Engineering (Inner Mongolia Agricultural University), Ministry of Education; Key Laboratory of Dairy Products Processing, Ministry of Agriculture and Rural Affairs; Inner Mongolia Key Laboratory of Dairy Biotechnology and Engineering, Inner Mongolia Agricultural University, Hohhot, China.
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Choi CH, Kim E, Yang SM, Kim DS, Suh SM, Lee GY, Kim HY. Comparison of Real-Time PCR and Droplet Digital PCR for the Quantitative Detection of Lactiplantibacillus plantarum subsp. plantarum. Foods 2022; 11:foods11091331. [PMID: 35564054 PMCID: PMC9105557 DOI: 10.3390/foods11091331] [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: 03/21/2022] [Revised: 04/26/2022] [Accepted: 04/30/2022] [Indexed: 12/04/2022] Open
Abstract
Droplet digital polymerase chain reaction (ddPCR) is one of the newest and most promising tools providing absolute quantification of target DNA molecules. Despite its emerging applications in microorganisms, few studies reported its use for detecting lactic acid bacteria. This study evaluated the applicability of a ddPCR assay targeting molecular genes obtained from in silico analysis for detecting Lactiplantibacillus plantarum subsp. plantarum, a bacterium mainly used as a starter or responsible for fermentation in food. The performance characteristics of a ddPCR were compared to those of a quantitative real-time PCR (qPCR). To compare the linearity and sensitivity of a qPCR and ddPCR, the calibration curve for a qPCR and the regression curve for a ddPCR were obtained using genomic DNA [102−108 colony-forming units (CFU)/mL] extracted from a pure culture and spiked food sample. Both the qPCR and ddPCR assays exhibited good linearity with a high coefficient of determination in the pure culture and spiked food sample (R2 ≥ 0.996). The ddPCR showed a 10-fold lower limit of detection, suggesting that a ddPCR is more sensitive than a qPCR. However, a ddPCR has limitations in the absolute quantitation of high bacterial concentrations (>106 CFU/mL). In conclusion, a ddPCR can be a reliable method for detecting and quantifying lactic acid bacteria in food.
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Affiliation(s)
| | | | | | | | | | | | - Hae-Yeong Kim
- Correspondence: ; Tel.: +82-31-201-2600; Fax: +82-31-204-8116
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Tantikalchan S, Mitrakul K. Association between Bifidobacterium and Scardovia Wiggsiae and caries-related factors in severe early childhood caries and caries-free Thai children: a quantitative real-time PCR analysis and a questionnaire cross-sectional study. Eur Arch Paediatr Dent 2022; 23:437-447. [PMID: 35389204 DOI: 10.1007/s40368-022-00702-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Accepted: 03/09/2022] [Indexed: 11/24/2022]
Abstract
AIMS To quantitatively identify Bifidobacterium, S. wiggsiae and S. mutans in plaque samples obtained from children with severe-ECC and caries-free groups and to analyze their association with caries-related factors retrieved from the questionnaire in each group. STUDY DESIGN To establish the 2 study groups, clinical examination in 122 Thai children, aged 2-5 years, recorded decayed, missing and filled teeth scores (dmft), in addition to plaque and gingival indices. Sixty one children in the caries-free group and 61 in the S-ECC group were identified. A questionnaire was used to assess the parent's attitudes and behavior regarding the child's oral hygiene care and diet. METHODS Pooled overnight supra gingival plaque was collected from each child using a sterile toothpick, released in 1 ml of TE buffer, transported on ice to the Laboratory and stored at - 20 °C. DNA was extracted from the plaque based on enzymatic lysis and quantitative real-time PCR using fluorescent dye (SYBR green) in addition to Agarose gel electrophoresis were performed. All laboratory and retrieved from the questionnaire data per child were recorded and statistically analysed. RESULTS S. wiggsiae (p < 0.005) and S. mutans (p < 0.001) were higher in the S-ECC group. Bifidobacterium, S. mutans, and S. wiggsiae were associated with the dmft score and gingival index (p < 0.001). The dmft scores of children who detected only S. mutans were significantly lower than the dmft scores of children who detected two bacteria; S. mutans + S. wiggsiae (p = 0.028), S. mutans + Bifidobacterium (p = 0.026), and three bacteria; S. mutans + Bifidobacterium + S. wiggsiae (p = 0.007). Children who found all three bacteria (Bi + Sm + Sw) had the highest dmft scores, followed by children who had two bacteria (Bi + Sw, or Bi + Sm, or Sw + Sm). The guardians' education levels, occupations, household income, prolonged bottle feeding, taking of water after bottle or breast feeding, eating sugar-coated crackers or bread with sweetened cream, and premature birth were the factors that related to S-ECC. CONCLUSION Levels of S. wiggsiae and S. mutans, guardian's education, family economics, prolonged bottle feeding, eating high sugar-containing snacks and premature birth were associated with S-ECC.
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Affiliation(s)
- S Tantikalchan
- Nakorn Pathom Hospital, Nakorn Pathom Province, Thailand
| | - K Mitrakul
- Department of Pediatric Dentistry, Faculty of Dentistry, Mahidol University, 6 Yothee street, Ratchathewi, 10400, Bangkok, Thailand.
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Gut Bifidobacterium responses to probiotic Lactobacillus casei Zhang administration vary between subjects from different geographic regions. Appl Microbiol Biotechnol 2022; 106:2665-2675. [PMID: 35318524 DOI: 10.1007/s00253-022-11868-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2021] [Revised: 03/03/2022] [Accepted: 03/05/2022] [Indexed: 01/26/2023]
Abstract
Bifidobacteria are health-promoting human gut inhabitants, but accurate species-level composition of the gut bifidobacteria and their responses to probiotic intervention have not been fully explored. This was a follow-up work of our previous study, in which 104 volunteers from six different Asiatic regions (Singapore, Indonesia, Xinjiang, Gansu, Inner Mongolia, Mongolia) were recruited. The gut microbiota and their responses towards Lactobacillus casei Zhang (LCZ) intervention were characterized (at days 0, 7, and 14; 14 days after stopping probiotic intake), and region-based differential responses were observed after LCZ intervention. This study further investigated changes in the species-level gut bifidobacteria by PacBio small-molecule real-time sequencing (SMRT) using bifidobacteria-specific primers. Firstly, this study found that Bifidobacterium adolescentis (42.58%) and Bifidobacterium breve (26.34%) were the core species across the six Asiatic regions. Secondly, principal coordinate analysis of probiotic-induced changes in the gut bifidobacterial microbiota (represented by weighted UniFrac distances) grouped the six regions into two clusters, namely northern (Xinjiang, Gansu, Inner Mongolia, and Mongolia) and southern (Singapore, Indonesia) regions. Thirdly, LCZ intervention induced region-based differential responses of gut bifidobacterial microbiota. The relative abundance of Bifidobacterium animalis in subjects from northern but not southern region substantially increased after LCZ intervention. Moreover, LCZ intervention significantly increased the weighted UniFrac distances in the southern but not northern subjects 7 days after LCZ intervention. The gut B. adolescentis correlated significantly and negatively with the weighted UniFrac distances of the baseline gut bifidobacterial microbiota in subjects of northern but not southern region, suggesting a possible homeostatic effect of LCZ on the gut bifidobacterial population of northern but not southern subjects. Collectively, our study found that probiotic-induced responses of the gut bifidobacterial microbiota varied with subjects' geographic origins, and B. adolescentis might play a role in maintaining the overall stability of the gut bifidobacterial population. KEY POINTS: • The core species in the six Asiatic regions are Bifidobacterium adolescentis and Bifidobacterium breve. • The gut bifidobacterial microbiota in people from various geographic origins showed different responses on probiotic administration.
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Isolation and Characterization of Commensal Bifidobacteria Strains in Gut Microbiota of Neonates Born Preterm: A Prospective Longitudinal Study. Microorganisms 2022; 10:microorganisms10030654. [PMID: 35336229 PMCID: PMC8951322 DOI: 10.3390/microorganisms10030654] [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: 01/10/2022] [Revised: 03/14/2022] [Accepted: 03/15/2022] [Indexed: 02/05/2023] Open
Abstract
Bifidobacterial population dynamics were investigated using a longitudinal analysis of dominant species isolated from feces of neonates born preterm (singletons (n = 10), pairs of twins (n = 11)) from birth up to 16 months of age. We performed quantification, isolation, and identification of the dominant bifidobacteria strains. The genetic relationship of the isolates was investigated via pulsed field gel electrophoresis (PFGE) genotyping, and PCR was used to screen the specific genetic marker tet genes. Additionally, all of the isolated strains were phenotypically characterized by their response to gastro-intestinal stresses and the MIC determination of tetracycline. In the same individual, our results showed a turnover of the bifidobacteria dominant population not only at species but also at strain levels. In addition, we found clonally related strains between twins. A minority of strains were tolerant to gastric (6%) and intestinal (16%) stresses. Thirteen percent of the strains were resistant to tetracycline. This work is original as it provides insights at the strain level of the early life in vivo dynamics of gut microbiota bifidobacteria in preterm neonates. It highlights the need to take into consideration the fluctuation of bifidobacteria populations that may occur for one individual.
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Human milk oligosaccharide-sharing by a consortium of infant derived Bifidobacterium species. Sci Rep 2022; 12:4143. [PMID: 35264656 PMCID: PMC8907170 DOI: 10.1038/s41598-022-07904-y] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2021] [Accepted: 02/24/2022] [Indexed: 11/08/2022] Open
Abstract
Bifidobacteria are associated with a host of health benefits and are typically dominant in the gut microbiota of healthy, breast-fed infants. A key adaptation, facilitating the establishment of these species, is their ability to consume particular sugars, known as human milk oligosaccharides (HMO), which are abundantly found in breastmilk. In the current study, we aimed to characterise the co-operative metabolism of four commercial infant-derived bifidobacteria (Bifidobacterium bifidum R0071, Bifidobacterium breve M-16V, Bifidobacterium infantis R0033, and Bifidobacterium infantis M-63) when grown on HMO. Three different HMO substrates (2'-fucosyllactose alone and oligosaccharides isolated from human milk representing non-secretor and secretor status) were employed. The four-strain combination resulted in increased bifidobacterial numbers (> 21%) in comparison to single strain cultivation. The relative abundance of B. breve increased by > 30% during co-cultivation with the other strains despite demonstrating limited ability to assimilate HMO in mono-culture. HPLC analysis revealed strain-level variations in HMO consumption. Metabolomics confirmed the production of formate, acetate, 1,2-propanediol, and lactate with an overall increase in such metabolites during co-cultivation. These results support the concept of positive co-operation between multiple bifidobacterial strains during HMO utilisation which may result in higher cell numbers and a potentially healthier balance of metabolites.
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王 柯, 崔 佳, 陆 秋, 陈 书, 彭 天, 李 鸣, 郭 云, 江 丽, 何 方, 于 晓, 吴 熙, 刘 晓. [Relationship between Blood Glucose and Lipid Levels and Intestinal Bifidobacteriumin Middle-Aged and Older Adults in Chengdu]. SICHUAN DA XUE XUE BAO. YI XUE BAN = JOURNAL OF SICHUAN UNIVERSITY. MEDICAL SCIENCE EDITION 2022; 53:297-302. [PMID: 35332733 PMCID: PMC10409356 DOI: 10.12182/20220360105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 03/24/2021] [Indexed: 06/14/2023]
Abstract
Objective To explore characteristics of the species structure of the genus Bifidobacterium at different levels of blood glucose and lipid in middle-aged and older adults in Chengdu so as to provide research basis for applying bifidobacteria in the prevention and treatment of hyperglycemia and dyslipidemia. Methods A total of 289 middle-aged and older adults of 45 and older were recruited in Chengdu between April and August 2018. They were divided into the healthy group, the dyslipidemia group, the hyperglycemia group, and the combination group (of subjects with both dyslipidemia and hyperglycemia). The levels of their fasting blood glucose (GLU), total cholesterol (TC), triglyceride (TG), high-density lipoprotein cholesterol (HDL-C), and low-density lipoprotein cholesterol (LDL-C) were examined. In addition, stool samples were collected and real-time fluorescence quantitative PCR was used for quantitative analysis of the genus Bifidobacteriumand the 8 bifidobacteria most commonly found in human intestines, the results of which were then examined to identify their correlation to blood glucose and lipid levels. Results A total of 289 samples were collected and findings of inter-group comparison of the species structure of Bifidobacterium were as follows: 1) findings regarding the Bifidobacterium species examined--there was no significant difference between groups in the detection rate and the number of species detected; the quantity of B. angulatum was significantly higher in the dyslipidemia group than that in the healthy group and that in the combination group, the quantify of B. catenulatum was significantly higher in the hyperglycemia group than that in the healthy group, and the quantity of B. dentium was significantly higher in the dyslipidemia group than that in the combination group. 2) Findings regarding the correlation between the quantity of bifidobacteria and blood glucose and lipid--at the genus level, only the dyslipidemia group showed negative correlation (r=-0.346) between Bifidobacterium and TC. At the species level, B. bifidum was negatively correlated with TG (r=-0.761), B. breve was negatively correlated with GLU, TC, and LDL-C (r=-0.256, r=-0.261, and r=-0.362), B.dentium was positively correlated with GLU (r=0.206), and B. infantis was negatively correlated with TC (r=-0.334) in the healthy group. In the hyperglycemia group, B. catenulatum and B. infantis were both positively correlated with HDL-C (r=0.307 and r=0.525). In the combination group, B. bifidum was negatively correlated with HDL-C (r=-0.828), while B. breve was positively correlated with TG and HDL-C (r=0.427 and r=0.375). Conclusion Middle-aged and older adults with dyslipidemia and/or hyperglycemia were significantly different from healthy subjects in their testing results for Bifidobacterium. Compared with the structure of Bifidobacterium species, the changes in the number of Bifidobacterium species detected were more closely correlated to the levels of blood glucose and blood lipid, showing unique characteristics in different situations, which may indicate potential application as indicators for glucose and lipid metabolism.
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Affiliation(s)
- 柯 王
- 四川大学华西第二医院 临床营养科 (成都 610041)Department of Clinical Nutrition, West China Second University Hospital, Sichuan University, Chengdu 610041, China
- 出生缺陷与相关妇儿疾病教育部重点实验室(四川大学) (成都 610041)Key Laboratory of Birth Defects and Related Diseases of Women and Children of the Ministry of Education, Sichuan University, Chengdu 610041, China
| | - 佳 崔
- 四川大学华西第二医院 临床营养科 (成都 610041)Department of Clinical Nutrition, West China Second University Hospital, Sichuan University, Chengdu 610041, China
| | - 秋娴 陆
- 四川大学华西第二医院 临床营养科 (成都 610041)Department of Clinical Nutrition, West China Second University Hospital, Sichuan University, Chengdu 610041, China
| | - 书巧 陈
- 四川大学华西第二医院 临床营养科 (成都 610041)Department of Clinical Nutrition, West China Second University Hospital, Sichuan University, Chengdu 610041, China
| | - 天宇 彭
- 四川大学华西第二医院 临床营养科 (成都 610041)Department of Clinical Nutrition, West China Second University Hospital, Sichuan University, Chengdu 610041, China
| | - 鸣 李
- 四川大学华西第二医院 临床营养科 (成都 610041)Department of Clinical Nutrition, West China Second University Hospital, Sichuan University, Chengdu 610041, China
| | - 云 郭
- 四川大学华西第二医院 临床营养科 (成都 610041)Department of Clinical Nutrition, West China Second University Hospital, Sichuan University, Chengdu 610041, China
| | - 丽 江
- 四川大学华西第二医院 临床营养科 (成都 610041)Department of Clinical Nutrition, West China Second University Hospital, Sichuan University, Chengdu 610041, China
| | - 方 何
- 四川大学华西第二医院 临床营养科 (成都 610041)Department of Clinical Nutrition, West China Second University Hospital, Sichuan University, Chengdu 610041, China
| | - 晓红 于
- 四川大学华西第二医院 临床营养科 (成都 610041)Department of Clinical Nutrition, West China Second University Hospital, Sichuan University, Chengdu 610041, China
| | - 熙 吴
- 四川大学华西第二医院 临床营养科 (成都 610041)Department of Clinical Nutrition, West China Second University Hospital, Sichuan University, Chengdu 610041, China
| | - 晓容 刘
- 四川大学华西第二医院 临床营养科 (成都 610041)Department of Clinical Nutrition, West China Second University Hospital, Sichuan University, Chengdu 610041, China
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Oral and Intestinal Bacterial Substances Associated with Disease Activities in Patients with Rheumatoid Arthritis: A Cross-Sectional Clinical Study. J Immunol Res 2022; 2022:6839356. [PMID: 35224112 PMCID: PMC8881124 DOI: 10.1155/2022/6839356] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2021] [Revised: 01/19/2022] [Accepted: 01/27/2022] [Indexed: 01/02/2023] Open
Abstract
Intestinal bacterial compositions of rheumatoid arthritis (RA) patients have been reported to be different from those of healthy people. Dysbiosis, imbalance of the microbiota, is widely known to cause gut barrier damage, resulting in an influx of bacteria and their substances into host bloodstreams in animal studies. However, few studies have investigated the effect of bacterial substances on the pathophysiology of RA. In this study, eighty-seven active RA patients who had inadequate responses to conventional synthetic disease-modifying antirheumatic drugs or severe comorbidities were analyzed for correlations between many factors such as disease activities, disease biomarkers, intestinal bacterial counts, fecal and serum lipopolysaccharide (LPS), LPS-binding protein (LBP), endotoxin neutralizing capacity (ENC), and serum antibacterial substance IgG and IgA antibody levels by multiple regression analysis with consideration for demographic factors such as age, sex, smoking, and methotrexate treatment. Serum LBP levels, fecal LPS levels, total bacteria counts, serum anti-LPS from Porphyromonas gingivalis (Pg-LPS) IgG antibody levels, and serum anti-Pg-LPS IgA antibody levels were selected for multiple regression analysis using Spearman’s correlation analysis. Serum LBP levels were correlated with disease biomarker levels, such as erythrocyte sedimentation rate (
), C-reactive protein (
), matrix metalloproteinase-3 (
), and IL-6 (
), and were inversely correlated with hemoglobin (
). Anti-Pg-LPS IgG antibody levels were inversely correlated with activity indices such as patient global assessments using visual analogue scale (VAS) (
) and painVAS (
). Total bacteria counts were correlated with ENC (
), and inversely correlated with serum LPS (
) and anti-Pg-LPS IgA antibody levels (
). These results suggest that substances from oral and gut microbiota may influence disease activity in RA patients.
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Shima T, Kaga C, Shimamoto K, Sugimoto T, Kado Y, Watanabe O, Suwa T, Amamoto R, Tsuji H, Matsumoto S. Characteristics of gut microbiome, organic acid profiles and viral antibody indexes of healthy Japanese with live Lacticaseibacillus detected in stool. Benef Microbes 2022; 13:33-46. [PMID: 35144523 DOI: 10.3920/bm2021.0101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
To estimate the health-promoting effects of Lacticaseibacillus paracasei (previously Lactobacillus casei) strain Shirota (LcS) that reached the lower gastrointestinal tract alive, we investigated the characteristics of gut microbiome, organic acid profiles, defecatory symptoms and serum viral antibody indexes of healthy Japanese adults between the group in whom live LcS was detected or not from stool. The β-diversity index of the gut microbiome constituted a significant difference between the live-LcS-detected-group (LLD) and the live-LcS-not-detected-group (LLnD). In the LLD, the Bifidobacteriaceae, Lactobacillaceae, and Coriobacteriaceae counts were significantly higher, and the succinate concentration was significantly lower than that in the LLnD. The serum herpes simplex virus (HSV) immunoglobulin (Ig)M antibody index in the LLD tended to be lower than that of the LLnD in HSV IgG-positive subjects. Of the LLD, those in the fermented milk products containing LcS (FML)-high-frequency-group (FML-HF) and those in the FML-low-frequency-group (FML-LF) had different gut microbiome and organic acid profiles. However, the pattern of differences between FML-HF and FML-LF was dissimilar those between LLD and LLnD. In contrast, among subjects with FML-LF, those in the group with LLD in stool (LF-LLD) and those in the LLnD in stool (LF-LLnD) showed a similar pattern of differences in their gut microbiome and organic acid profiles as those in the LLnD and LLD. The LLD and LF-LLD commonly had lower caloric and carbohydrate intakes from the diet than their respective control groups. In this study, we found that the presence of live LcS in stool is associated with a healthy gut environment and inhibition of the reactivation of latently infected viruses in the host. However, these health-promoting effects on the host were not related to the frequency of FML intake. Furthermore, dysbiosis of the gut microbiome and diet including caloric intake was related to the viability of ingested LcS in the gut.
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Affiliation(s)
- T Shima
- Yakult Central Institute, 5-11 Izumi, Kunitachi-shi, Tokyo 186-8650, Japan
| | - C Kaga
- Yakult Central Institute, 5-11 Izumi, Kunitachi-shi, Tokyo 186-8650, Japan
| | - K Shimamoto
- Yakult Central Institute, 5-11 Izumi, Kunitachi-shi, Tokyo 186-8650, Japan
| | - T Sugimoto
- Yakult Central Institute, 5-11 Izumi, Kunitachi-shi, Tokyo 186-8650, Japan
| | - Y Kado
- Yakult Central Institute, 5-11 Izumi, Kunitachi-shi, Tokyo 186-8650, Japan
| | - O Watanabe
- Yakult Honsha Co. Ltd., Development Department, 1-10-30 Kaigan, Minato-ku, Tokyo 105-8660, Japan
| | - T Suwa
- Yakult Central Institute, 5-11 Izumi, Kunitachi-shi, Tokyo 186-8650, Japan
| | - R Amamoto
- Yakult Central Institute, 5-11 Izumi, Kunitachi-shi, Tokyo 186-8650, Japan
| | - H Tsuji
- Yakult Central Institute, 5-11 Izumi, Kunitachi-shi, Tokyo 186-8650, Japan
| | - S Matsumoto
- Yakult Central Institute, 5-11 Izumi, Kunitachi-shi, Tokyo 186-8650, Japan
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Heiss BE, Ehrlich AM, Maldonado-Gomez MX, Taft DH, Larke JA, Goodson ML, Slupsky CM, Tancredi DJ, Raybould HE, Mills DA. Bifidobacterium catabolism of human milk oligosaccharides overrides endogenous competitive exclusion driving colonization and protection. Gut Microbes 2022; 13:1986666. [PMID: 34705611 PMCID: PMC8555557 DOI: 10.1080/19490976.2021.1986666] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Abstract
Understanding how exogenous microbes stably colonize the animal gut is essential to reveal mechanisms of action and tailor effective probiotic treatments. Bifidobacterium species are naturally enriched in the gastrointestinal tract of breast-fed infants. Human milk oligosaccharides (HMOs) are associated with this enrichment. However, direct mechanistic proof of the importance of HMOs in this colonization is lacking given milk contains additional factors that impact the gut microbiota. This study examined mice supplemented with the HMO 2'fucosyllactose (2'FL) together with a 2'FL-consuming strain, Bifidobacterium pseudocatenulatum MP80. 2'FL supplementation creates a niche for high levels of B.p. MP80 persistence, similar to Bifidobacterium levels seen in breast-fed infants. This synergism impacted gut microbiota composition, activated anti-inflammatory pathways and protected against chemically-induced colitis. These results demonstrate that bacterial-milk glycan interactions alone drive enrichment of beneficial Bifidobacterium and provide a model for tunable colonization thus facilitating insight into mechanisms of health promotion by bifidobacteriain neonates.
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Affiliation(s)
- Britta E. Heiss
- Department of Food Science and Technology, University of California-Davis, Davis, CA, USA,Foods for Health Institute, University of California-Davis, Davis, CA, USA
| | - Amy M. Ehrlich
- Department of Anatomy, Physiology, and Cell Biology, School of Veterinary Medicine, University of California-Davis, Davis, CA, USA
| | - Maria X. Maldonado-Gomez
- Department of Food Science and Technology, University of California-Davis, Davis, CA, USA,Foods for Health Institute, University of California-Davis, Davis, CA, USA
| | - Diana H. Taft
- Department of Food Science and Technology, University of California-Davis, Davis, CA, USA,Foods for Health Institute, University of California-Davis, Davis, CA, USA
| | - Jules A. Larke
- Department of Nutrition, University of California-Davis, Davis, CA, USA
| | - Michael L. Goodson
- Department of Anatomy, Physiology, and Cell Biology, School of Veterinary Medicine, University of California-Davis, Davis, CA, USA
| | - Carolyn M. Slupsky
- Department of Food Science and Technology, University of California-Davis, Davis, CA, USA,Foods for Health Institute, University of California-Davis, Davis, CA, USA,Department of Nutrition, University of California-Davis, Davis, CA, USA
| | - Daniel J. Tancredi
- Center for Healthcare Policy and Research, Department of Pediatrics, University of California-Davis, Sacramento, CA, USA
| | - Helen E. Raybould
- Foods for Health Institute, University of California-Davis, Davis, CA, USA,Department of Anatomy, Physiology, and Cell Biology, School of Veterinary Medicine, University of California-Davis, Davis, CA, USA,CONTACT Helen E. Raybould Department of Anatomy, Physiology, and Cell Biology, School of Veterinary Medicine, University of California-Davis, Davis, CA, USA
| | - David A. Mills
- Department of Food Science and Technology, University of California-Davis, Davis, CA, USA,Foods for Health Institute, University of California-Davis, Davis, CA, USA,David A. Mills Department of Food Science and Technology, University of California-Davis, Davis, CA, USA
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43
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Khuituan P, Huipao N, Jeanmard N, Thantongsakul S, Promjun W, Chuthong S, Tipbunjong C, Peerakietkhajorn S. Sargassum plagiophyllum Extract Enhances Colonic Functions and Modulates Gut Microbiota in Constipated Mice. Nutrients 2022; 14:496. [PMID: 35276855 PMCID: PMC8838385 DOI: 10.3390/nu14030496] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Revised: 01/19/2022] [Accepted: 01/21/2022] [Indexed: 12/11/2022] Open
Abstract
Constipation is a symptom that is widely found in the world’s population. Various dietary supplementations are used to relieve and prevent constipation. Seaweed is widely used for its health benefits. In this study, we aimed to investigate the effects of Sargassum plagiophyllum extract (SPE) on functions of the gastrointestinal tract and gut microbiota. The results show that SPE pretreatment increased the frequency of gut contraction, leading to reduce gut transit time. SPE pretreatment also significantly increased the secretion of Cl− and reduced Na+ absorption, increasing fecal water content in constipated mice (p < 0.05). In addition, the Bifidobacteria population in cecal contents was significantly higher in constipated mice pretreated with 500 mg/kg SPE for 14 days than in untreated constipated mice (p < 0.05). Our findings suggest that SPE can prevent constipation in loperamide-induced mice. This study may be useful for the development of human food supplements from S. plagiophyllum, which prevent constipation.
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Affiliation(s)
- Pissared Khuituan
- Division of Health and Applied Sciences, Faculty of Science, Prince of Songkla University, Songkhla 90110, Thailand; (P.K.); (N.H.); (C.T.)
- Gut Biology and Microbiota Research Unit, Prince of Songkla University, Songkhla 90110, Thailand; (N.J.); (S.T.); (W.P.); (S.C.)
| | - Nawiya Huipao
- Division of Health and Applied Sciences, Faculty of Science, Prince of Songkla University, Songkhla 90110, Thailand; (P.K.); (N.H.); (C.T.)
- Gut Biology and Microbiota Research Unit, Prince of Songkla University, Songkhla 90110, Thailand; (N.J.); (S.T.); (W.P.); (S.C.)
| | - Nilobon Jeanmard
- Gut Biology and Microbiota Research Unit, Prince of Songkla University, Songkhla 90110, Thailand; (N.J.); (S.T.); (W.P.); (S.C.)
- Division of Biological Science, Faculty of Science, Prince of Songkla University, Songkhla 90110, Thailand
| | - Sitthiwach Thantongsakul
- Gut Biology and Microbiota Research Unit, Prince of Songkla University, Songkhla 90110, Thailand; (N.J.); (S.T.); (W.P.); (S.C.)
- Division of Biological Science, Faculty of Science, Prince of Songkla University, Songkhla 90110, Thailand
| | - Warittha Promjun
- Gut Biology and Microbiota Research Unit, Prince of Songkla University, Songkhla 90110, Thailand; (N.J.); (S.T.); (W.P.); (S.C.)
- Division of Biological Science, Faculty of Science, Prince of Songkla University, Songkhla 90110, Thailand
| | - Suwarat Chuthong
- Gut Biology and Microbiota Research Unit, Prince of Songkla University, Songkhla 90110, Thailand; (N.J.); (S.T.); (W.P.); (S.C.)
- Division of Biological Science, Faculty of Science, Prince of Songkla University, Songkhla 90110, Thailand
| | - Chittipong Tipbunjong
- Division of Health and Applied Sciences, Faculty of Science, Prince of Songkla University, Songkhla 90110, Thailand; (P.K.); (N.H.); (C.T.)
- Gut Biology and Microbiota Research Unit, Prince of Songkla University, Songkhla 90110, Thailand; (N.J.); (S.T.); (W.P.); (S.C.)
| | - Saranya Peerakietkhajorn
- Gut Biology and Microbiota Research Unit, Prince of Songkla University, Songkhla 90110, Thailand; (N.J.); (S.T.); (W.P.); (S.C.)
- Division of Biological Science, Faculty of Science, Prince of Songkla University, Songkhla 90110, Thailand
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Azcarate-Peril MA, Roach J, Marsh A, Chey WD, Sandborn WJ, Ritter AJ, Savaiano DA, Klaenhammer TR. A double-blind, 377-subject randomized study identifies Ruminococcus, Coprococcus, Christensenella, and Collinsella as long-term potential key players in the modulation of the gut microbiome of lactose intolerant individuals by galacto-oligosaccharides. Gut Microbes 2022; 13:1957536. [PMID: 34365905 PMCID: PMC8354614 DOI: 10.1080/19490976.2021.1957536] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
Background. Our recent publication (Chey et al., Nutrients 2020) showed that a 30-day administration of pure galacto-oligosaccharides (GOS) significantly reduced symptoms and altered the fecal microbiome in patients with lactose intolerance (LI). Results. In this addendum, we performed an in-depth analysis of the fecal microbiome of the 377 LI patients randomized to one of two GOS doses (Low, 10-15 grams/day or High, 15-20 grams/day), or placebo in a multi-center, double-blinded, placebo-controlled trial. Sequencing of 16S rRNA amplicons was done on GOS or placebo groups at weeks zero (baseline), four (end of treatment), nine, 16 and 22. Taxa impacted by treatment and subsequent dairy consumption included lactose-fermenting species of Bifidobacterium, Lactobacillus, Lactococcus, and Streptococcus. Increased secondary fermentation microorganisms included Coprococcus and Ruminococcus species, Blautia producta, and Methanobrevibacterium. Finally, tertiary fermenters that use acetate to generate butyrate were also increased, including Faecalibacterium prausnitzii, Roseburia faecis, and C. eutactus. Conclusions. Results confirmed and expanded data on GOS microbiome modulation in LI individuals. Microbiome analysis at 16 and 22 weeks after treatment further suggested relatively long-term benefits when individuals continued consumption of dairy products.
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Affiliation(s)
- M. A. Azcarate-Peril
- Department of Medicine, Division of Gastroenterology and Hepatology, School of Medicine, University of North Carolina, Chapel Hill, NC, USA,UNC Microbiome Core, Center for Gastrointestinal Biology and Disease, School of Medicine, University of North Carolina, Chapel Hill, NC, USA,CONTACT M. A. Azcarate-Peril Department of Medicine, School of Medicine, University of North Carolina, 332 Isaac Taylor Hall, Chapel Hill, NC27599-7545
| | - J. Roach
- UNC Microbiome Core, Center for Gastrointestinal Biology and Disease, School of Medicine, University of North Carolina, Chapel Hill, NC, USA,UNC Information Technology Services and Research Computing, University of North Carolina, Chapel Hill, NC, USA
| | - A. Marsh
- Department of Medicine, Division of Gastroenterology and Hepatology, School of Medicine, University of North Carolina, Chapel Hill, NC, USA,UNC Microbiome Core, Center for Gastrointestinal Biology and Disease, School of Medicine, University of North Carolina, Chapel Hill, NC, USA
| | - William D. Chey
- Departments of Internal Medicine and Nutritional Sciences, University of Michigan Health System, Ann Arbor, MI, USA
| | - William J. Sandborn
- Division of Gastroenterology, University of California San Diego, La Jolla, CA, USA
| | | | - Dennis A. Savaiano
- Department of Nutrition Science, Purdue University, West Lafayette, IN, USA
| | - T. R. Klaenhammer
- Department of Food, Bioprocessing and Nutrition Sciences, North Carolina State University, Raleigh, NC, USA
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45
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Niikura M, Atobe S, Takahashi A, Kado Y, Sugimoto T, Tsuji H, Shimizu K, Ogura H, Asahara T. Development of a rapid and sensitive analytical system for Pseudomonas aeruginosa based on reverse transcription quantitative PCR targeting of rRNA molecules. Emerg Microbes Infect 2021; 10:677-686. [PMID: 33734032 PMCID: PMC8023615 DOI: 10.1080/22221751.2021.1906164] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Revised: 03/10/2021] [Accepted: 03/14/2021] [Indexed: 12/05/2022]
Abstract
For Pseudomonas aeruginosa (PA), infection control and appropriate antimicrobial treatment have become important issues. Diagnosis is critical in managing PA infection, but conventional methods are not highly accurate or rapid. We developed a new PA quantification system based on 23S rRNA-targeted reverse transcription quantitative PCR (RT-qPCR). We confirmed that RT-qPCR can quantify PA directly from clinical samples quickly (within 6 h) and with high sensitivity (blood, 1 cell/mL; stool, 100 cells/g) and without cross-reaction. Also, under antibiotic treatment, PA viable counts detected by this system correlated well with the inflammatory response of infected Caco-2 cells compared to other methods such as culturing and qPCR. Next, we utilized this system on fecal samples collected from 65 septic ICU patients and 44 healthy volunteers to identify ICU infection status. We confirmed that the PA detection ratio in ICU patients was significantly higher than that in healthy volunteers (49.2% vs. 13.6%, P < 0.05). Additionally, we monitored drug-resistant PA in 4 ICU patients by this system. The trends in PA counts accurately reflected various treatment backgrounds such as antibiotic use and mechanical ventilator use. Our results suggest that this RT-qPCR system is beneficial for the early diagnosis and evaluation of appropriate antibacterial treatment and may be a useful tool in combating PA infection.
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Affiliation(s)
- Mai Niikura
- Yakult Central Institute, Yakult Honsha Co., Ltd., Kunitachi, Tokyo, Japan
| | - Satomi Atobe
- Yakult Central Institute, Yakult Honsha Co., Ltd., Kunitachi, Tokyo, Japan
| | - Akira Takahashi
- Yakult Central Institute, Yakult Honsha Co., Ltd., Kunitachi, Tokyo, Japan
| | - Yukiko Kado
- Yakult Central Institute, Yakult Honsha Co., Ltd., Kunitachi, Tokyo, Japan
| | - Takuya Sugimoto
- Yakult Central Institute, Yakult Honsha Co., Ltd., Kunitachi, Tokyo, Japan
| | - Hirokazu Tsuji
- Yakult Central Institute, Yakult Honsha Co., Ltd., Kunitachi, Tokyo, Japan
| | - Kentaro Shimizu
- Department of Traumatology and Acute Critical Medicine, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Hiroshi Ogura
- Department of Traumatology and Acute Critical Medicine, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Takashi Asahara
- Yakult Central Institute, Yakult Honsha Co., Ltd., Kunitachi, Tokyo, Japan
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46
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Nakanishi T, Fukui H, Wang X, Nishiumi S, Yokota H, Makizaki Y, Tanaka Y, Ohno H, Tomita T, Oshima T, Miwa H. Effect of a High-Fat Diet on the Small-Intestinal Environment and Mucosal Integrity in the Gut-Liver Axis. Cells 2021; 10:3168. [PMID: 34831391 PMCID: PMC8622719 DOI: 10.3390/cells10113168] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2021] [Revised: 10/28/2021] [Accepted: 11/11/2021] [Indexed: 12/12/2022] Open
Abstract
Although high-fat diet (HFD)-related dysbiosis is involved in the development of steatohepatitis, its pathophysiology especially in the small intestine remains unclear. We comprehensively investigated not only the liver pathology but also the microbiome profile, mucosal integrity and luminal environment in the small intestine of mice with HFD-induced obesity. C57BL/6J mice were fed either a normal diet or an HFD, and their small-intestinal contents were subjected to microbial 16S rDNA analysis. Intestinal mucosal permeability was evaluated by FITC-dextran assay. The levels of bile acids in the small-intestinal contents were measured by liquid chromatography/mass spectrometry. The expression of tight junction molecules, antimicrobial peptides, lipopolysaccharide and macrophage marker F4/80 in the small intestine and/or liver was examined by real-time RT-PCR and immunohistochemistry. The abundance of Lactobacillus was markedly increased and that of Clostridium was drastically decreased in the small intestine of mice fed the HFD. The level of conjugated taurocholic acid was significantly increased and those of deconjugated cholic acid/secondary bile acids were conversely decreased in the small-intestinal contents. The expression of occludin, antimicrobial Reg IIIβ/γ and IL-22 was significantly decreased in the small intestine of HFD-fed mice, and the intestinal permeability was significantly accelerated. Infiltration of lipopolysaccharide was significantly increased in not only the small-intestinal mucosa but also the liver of HFD-fed mice, and fat drops were apparently accumulated in the liver. Pathophysiological alteration of the luminal environment in the small intestine resulting from a HFD is closely associated with minimal inflammation involving the gut-liver axis through disturbance of small-intestinal mucosal integrity.
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Affiliation(s)
- Takashi Nakanishi
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Hyogo College of Medicine, Nishinomiya 663-8501, Japan; (T.N.); (X.W.); (T.T.); (T.O.); (H.M.)
| | - Hirokazu Fukui
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Hyogo College of Medicine, Nishinomiya 663-8501, Japan; (T.N.); (X.W.); (T.T.); (T.O.); (H.M.)
| | - Xuan Wang
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Hyogo College of Medicine, Nishinomiya 663-8501, Japan; (T.N.); (X.W.); (T.T.); (T.O.); (H.M.)
| | - Shin Nishiumi
- Department of Omics Medicine, Hyogo College of Medicine, Nishinomiya 663-8501, Japan;
| | - Haruka Yokota
- R&D Center, Biofermin Pharmaceutical Co., Ltd., Kobe 651-2242, Japan; (H.Y.); (Y.M.); (Y.T.); (H.O.)
| | - Yutaka Makizaki
- R&D Center, Biofermin Pharmaceutical Co., Ltd., Kobe 651-2242, Japan; (H.Y.); (Y.M.); (Y.T.); (H.O.)
| | - Yoshiki Tanaka
- R&D Center, Biofermin Pharmaceutical Co., Ltd., Kobe 651-2242, Japan; (H.Y.); (Y.M.); (Y.T.); (H.O.)
| | - Hiroshi Ohno
- R&D Center, Biofermin Pharmaceutical Co., Ltd., Kobe 651-2242, Japan; (H.Y.); (Y.M.); (Y.T.); (H.O.)
| | - Toshihiko Tomita
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Hyogo College of Medicine, Nishinomiya 663-8501, Japan; (T.N.); (X.W.); (T.T.); (T.O.); (H.M.)
| | - Tadayuki Oshima
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Hyogo College of Medicine, Nishinomiya 663-8501, Japan; (T.N.); (X.W.); (T.T.); (T.O.); (H.M.)
| | - Hiroto Miwa
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Hyogo College of Medicine, Nishinomiya 663-8501, Japan; (T.N.); (X.W.); (T.T.); (T.O.); (H.M.)
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Watanabe Y, Saito Y, Hara T, Tsukuda N, Aiyama-Suzuki Y, Tanigawa-Yahagi K, Kurakawa T, Moriyama-Ohara K, Matsumoto S, Matsuki T. Xylan utilisation promotes adaptation of Bifidobacterium pseudocatenulatum to the human gastrointestinal tract. ISME COMMUNICATIONS 2021; 1:62. [PMID: 37938239 PMCID: PMC9723692 DOI: 10.1038/s43705-021-00066-4] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2021] [Revised: 10/10/2021] [Accepted: 10/12/2021] [Indexed: 05/27/2023]
Abstract
Dietary carbohydrates impact the composition of the human gut microbiota. However, the relationship between carbohydrate availability for individual bacteria and their growth in the intestinal environment remains unclear. Here, we show that the availability of long-chain xylans (LCX), one of the most abundant dietary fibres in the human diet, promotes the growth of Bifidobacterium pseudocatenulatum in the adult human gut. Genomic and phenotypic analyses revealed that the availability of LCX-derived oligosaccharides is a fundamental feature of B. pseudocatenulatum, and that some but not all strains possessing the endo-1,4-β-xylanase (BpXyn10A) gene grow on LCX by cleaving the xylose backbone. The BpXyn10A gene, likely acquired by horizontal transfer, was incorporated into the gene cluster for LCX-derived oligosaccharide utilisation. Co-culturing with xylanolytic Bacteroides spp. demonstrated that LCX-utilising strains are more competitive than LCX non-utilising strains even when LCX-derived oligosaccharides were supplied. In LCX-rich dietary interventions in adult humans, levels of endogenous B. pseudocatenulatum increased only when BpXyn10A was detected, indicating that LCX availability is a fitness determinant in the human gut. Our findings highlight the enhanced intestinal adaptability of bifidobacteria via polysaccharide utilisation, and provide a cornerstone for systematic manipulation of the intestinal microbiota through dietary intervention using key enzymes that degrade polysaccharide as biomarkers.
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Affiliation(s)
| | - Yuki Saito
- Yakult Central Institute, Kunitachi, Tokyo, Japan
| | - Taeko Hara
- Yakult Central Institute, Kunitachi, Tokyo, Japan
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Matsui H, Imai T, Kondo M, Ban-Tokuda T, Yamada Y. Effects of the supplementation of a calcium soap containing medium-chain fatty acids on the fecal microbiota of pigs, lactating cows, and calves. Anim Sci J 2021; 92:e13636. [PMID: 34608725 PMCID: PMC9286607 DOI: 10.1111/asj.13636] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2020] [Revised: 08/06/2021] [Accepted: 08/27/2021] [Indexed: 11/30/2022]
Abstract
Medium-chain fatty acids (MCFAs) have antialgal, antibacterial, antifungal, antiprotozoan, and antiviral activities. However, antibacterial activities of MCFAs in the hindgut of pigs and cattle are still unknown. We report the effects of the supplementation of MCFAs on fecal bacteria of pigs, lactating cows, and Japanese Black calves. Lactobacillus spp., Bifidobacterium spp., eaeA(+) Escherichia coli, Salmonella spp., Campylobacter jejuni, and Clostridium perfringens in the feces of animals were quantified by real-time PCR assay. There was no significant increase or decrease in Lactobacillus spp. and Bifidobacterium spp. in the three animals. In the pig feces, eaeA(+) E. coli was reduced to less than a third in the treatment group (P < 0.01). C. jejuni in the pig feces was also significantly less in the treatment group compared with the control (P < 0.01). In the lactating cow, eaeA(+) E. coli was reduced to one fifth of that in the control (P < 0.01). Salmonella spp. was halved in calf feces (P < 0.01). Thus, a reduction in Gram-negative pathogenic bacteria was observed. In conclusion, supplementation of a MCFA calcium soap in the diet would be beneficial to growing pigs, lactating cow, and calves by reducing pathogenic bacteria.
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Affiliation(s)
- Hiroki Matsui
- Graduate School of Bioresources, Mie University, Tsu, Japan
| | - Taichi Imai
- Graduate School of Bioresources, Mie University, Tsu, Japan
| | - Makoto Kondo
- Graduate School of Bioresources, Mie University, Tsu, Japan
| | | | - Yutaka Yamada
- Agromedic group, R&D Lab., Yuka Sangyo Co., Ltd, Amagasaki, Japan
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Xiao Y, Yang C, Yu L, Tian F, Wu Y, Zhao J, Zhang H, Yang R, Chen W, Hill C, Cui Y, Zhai Q. Human gut-derived B. longum subsp. longum strains protect against aging in a D-galactose-induced aging mouse model. MICROBIOME 2021; 9:180. [PMID: 34470652 PMCID: PMC8411540 DOI: 10.1186/s40168-021-01108-8] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2021] [Accepted: 06/02/2021] [Indexed: 05/02/2023]
Abstract
BACKGROUND Probiotics have been used to regulate the gut microbiota and physiology in various contexts, but their precise mechanisms of action remain unclear. RESULTS By population genomic analysis of 418 Bifidobacterium longum strains, including 143 newly sequenced in this study, three geographically distinct gene pools/populations, BLAsia1, BLAsia2, and BLothers, were identified. Genes involved in cell wall biosynthesis, particularly peptidoglycan biosynthesis, varied considerably among the core genomes of the different populations, but accessory genes that contributed to the carbohydrate metabolism were significantly distinct. Although active transmission was observed inter-host, inter-country, inter-city, intra-community, and intra-family, a single B. longum clone seemed to reside within each individual. A significant negative association was observed between host age and relative abundance of B. longum, while there was a strong positive association between host age and strain genotype [e.g., single nucleotide polymorphisms in the arginine biosynthesis pathway]. Further animal experiments performed with the B. longum isolates via using a D-galactose-induced aging mouse model supported these associations, in which B. longum strains with different genotypes in arginine biosynthesis pathway showed divergent abilities on protecting against host aging possibly via their different abilities to modify the metabolism of gut microbes. CONCLUSIONS This is the first known example of research on the evolutionary history and transmission of this probiotic species. Our results propose a new mechanistic insight for promoting host longevity via the informed use of specific probiotics or molecules. Video abstract.
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Affiliation(s)
- Yue Xiao
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122 People’s Republic of China
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, 100071 China
- School of Food Science and Technology, Jiangnan University, Wuxi, 214122 Jiangsu China
- International Joint Research Laboratory for Probiotics At Jiangnan University, Wuxi, 214122 Jiangsu China
| | - Chao Yang
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, 100071 China
| | - Leilei Yu
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122 People’s Republic of China
- School of Food Science and Technology, Jiangnan University, Wuxi, 214122 Jiangsu China
| | - Fengwei Tian
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122 People’s Republic of China
- School of Food Science and Technology, Jiangnan University, Wuxi, 214122 Jiangsu China
| | - Yarong Wu
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, 100071 China
| | - Jianxin Zhao
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122 People’s Republic of China
- School of Food Science and Technology, Jiangnan University, Wuxi, 214122 Jiangsu China
| | - Hao Zhang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122 People’s Republic of China
- School of Food Science and Technology, Jiangnan University, Wuxi, 214122 Jiangsu China
- National Engineering Research Center for Functional Food, Jiangnan University, Wuxi, 214122 Jiangsu China
- (Yangzhou) Institute of Food Biotechnology, Jiangnan University, Yangzhou, 225004 China
| | - Ruifu Yang
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, 100071 China
| | - Wei Chen
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122 People’s Republic of China
- School of Food Science and Technology, Jiangnan University, Wuxi, 214122 Jiangsu China
- National Engineering Research Center for Functional Food, Jiangnan University, Wuxi, 214122 Jiangsu China
- Beijing Innovation Centre of Food Nutrition and Human Health, Beijing Technology and Business University (BTBU), Beijing, 100048 People’s Republic of China
| | - Colin Hill
- School of Microbiology & APC Microbiome Institute, University College Cork, Cork, T12 YN60 Ireland
| | - Yujun Cui
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, 100071 China
| | - Qixiao Zhai
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122 People’s Republic of China
- School of Food Science and Technology, Jiangnan University, Wuxi, 214122 Jiangsu China
- International Joint Research Laboratory for Probiotics At Jiangnan University, Wuxi, 214122 Jiangsu China
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Targeted High-Resolution Taxonomic Identification of Bifidobacterium longum subsp. infantis Using Human Milk Oligosaccharide Metabolizing Genes. Nutrients 2021; 13:nu13082833. [PMID: 34444993 PMCID: PMC8401031 DOI: 10.3390/nu13082833] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Revised: 07/31/2021] [Accepted: 08/08/2021] [Indexed: 01/05/2023] Open
Abstract
Bifidobacterium longum subsp. infantis (B. infantis) is one of a few microorganisms capable of metabolizing human breast milk and is a pioneer colonizer in the guts of breastfed infants. One current challenge is differentiating B. infantis from its close relatives, B. longum and B. suis. All three organisms are classified in the same species group but only B. infantis can metabolize human milk oligosaccharides (HMOs). We compared HMO-metabolizing genes across different Bifidobacterium genomes and developed B. infantis-specific primers to determine if the genes alone or the primers can be used to quickly characterize B. infantis. We showed that B. infantis is uniquely identified by the presence of five HMO-metabolizing gene clusters, tested for its prevalence in infant gut metagenomes, and validated the results using the B. infantis-specific primers. We observed that only 15 of 203 (7.4%) children under 2 years old from a cohort of US children harbored B. infantis. These results highlight the importance of developing and improving approaches to identify B. infantis. A more accurate characterization may provide insights into regional differences of B. infantis prevalence in infant gut microbiota.
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