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Dong W, Peng Y, Xu W, Zhou W, Yan Y, Mi J, Lu L, Cao Y, Zeng X. In vivo absorption and excretion in rats and in vitro digestion and fermentation by the human intestinal microbiota of 2- O-β-D-glucopyranosyl-L-ascorbic acid from the fruits of Lycium barbarum L. Food Funct 2024; 15:8477-8487. [PMID: 39054889 DOI: 10.1039/d4fo01894j] [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: 07/27/2024]
Abstract
2-O-β-D-Glucopyranosyl-L-ascorbic acid (AA-2βG) from Lycium barbarum fruits has diverse bioactivities, yet its absorption and digestion are poorly understood. Therefore, the in vivo absorption of AA-2βG in rats was investigated in the present study. After oral administration to SD rats, AA-2βG was absorbed intact, reaching a peak plasma concentration of 472.32 ± 296.64 nM at 90 min, with fecal excretion peaking at 4-8 h and decreasing rapidly by 12-24 h, indicating a prolonged intestinal presence. Furthermore, the digestibility under simulated gastrointestinal conditions and the impact on the gut flora through in vitro fermentation of AA-2βG were investigated. The results reveal that AA-2βG resisted in in vitro simulated digestion, indicating potential interactions with the gut microbiota. The results of in vitro fermentation showed that AA-2βG regulated the composition of the gut microbiota by promoting Oscillospiraceae, Faecalibacterium, Limosilactobacillus, and Fusicatenibacter, while inhibiting Enterococcus, Phocaeicola, Bacteroides, and Streptococcus. Furthermore, at the species level, AA-2βG promoted the growth of Limosilactobacillus mucosae and Faecalibacterium prausnitzii, and inhibited the growth of Enterococcus. F. prausnitzii is a major producer of n-butyric acid, and the results of short-chain fatty acids also demonstrated a significant promotion of n-butyric acid. Therefore, the study on the absorption, excretion, and regulatory effects of AA-2βG on the gut microbiota supported its potential development as a functional food additive to enhance intestinal health and prevent diseases.
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Affiliation(s)
- Wei Dong
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, Jiangsu, China.
| | - Yujia Peng
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, Jiangsu, China.
| | - Weiqi Xu
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, Jiangsu, China.
| | - Wangting Zhou
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, Jiangsu, China.
| | - Yamei Yan
- Institute of Wolfberry Engineering Technology, Ningxia Academy of Agriculture and Forestry Sciences, Yinchuan, 750002, Ningxia, China
- National Wolfberry Engineering Research Center, Yinchuan 750002, Ningxia, China
| | - Jia Mi
- Institute of Wolfberry Engineering Technology, Ningxia Academy of Agriculture and Forestry Sciences, Yinchuan, 750002, Ningxia, China
- National Wolfberry Engineering Research Center, Yinchuan 750002, Ningxia, China
| | - Lu Lu
- Institute of Wolfberry Engineering Technology, Ningxia Academy of Agriculture and Forestry Sciences, Yinchuan, 750002, Ningxia, China
- National Wolfberry Engineering Research Center, Yinchuan 750002, Ningxia, China
| | - Youlong Cao
- Institute of Wolfberry Engineering Technology, Ningxia Academy of Agriculture and Forestry Sciences, Yinchuan, 750002, Ningxia, China
- National Wolfberry Engineering Research Center, Yinchuan 750002, Ningxia, China
| | - Xiaoxiong Zeng
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, Jiangsu, China.
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2
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He G, Long H, He J, Zhu C. The Immunomodulatory Effects and Applications of Probiotic Lactiplantibacillus plantarum in Vaccine Development. Probiotics Antimicrob Proteins 2024:10.1007/s12602-024-10338-9. [PMID: 39101975 DOI: 10.1007/s12602-024-10338-9] [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] [Accepted: 07/26/2024] [Indexed: 08/06/2024]
Abstract
Lactiplantibacillus plantarum (previously known as Lactobacillus plantarum) is a lactic acid bacterium that exists in various niches. L. plantarum is a food-grade microorganism that is commonly considered a safe and beneficial microorganism. It is widely used in food fermentation, agricultural enhancement, and environmental protection. L. plantarum is also part of the normal flora that can regulate the intestinal microflora and promote intestinal health. Some strains of L. plantarum are powerful probiotics that induce and modulate the innate and adaptive immune responses. Due to its outstanding immunoregulatory capacities, an increasing number of studies have examined the use of probiotic L. plantarum strains as natural immune adjuvants or alternative live vaccine carriers. The present review summarizes the main immunomodulatory characteristics of L. plantarum and discusses the preliminary immunological effects of L. plantarum as a vaccine adjuvant and delivery carrier. Different methods for improving the immune capacities of recombinant vector vaccines are also discussed.
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Affiliation(s)
- Guiting He
- Institute of Pathogenic Biology, Hengyang Medical College, University of South China, Hunan Provincial Key Laboratory for Special Pathogens Prevention and Control, Hengyang, 421001, Hunan, China
| | - Huanbing Long
- Institute of Pathogenic Biology, Hengyang Medical College, University of South China, Hunan Provincial Key Laboratory for Special Pathogens Prevention and Control, Hengyang, 421001, Hunan, China
| | - Jiarong He
- Institute of Pathogenic Biology, Hengyang Medical College, University of South China, Hunan Provincial Key Laboratory for Special Pathogens Prevention and Control, Hengyang, 421001, Hunan, China
| | - Cuiming Zhu
- Institute of Pathogenic Biology, Hengyang Medical College, University of South China, Hunan Provincial Key Laboratory for Special Pathogens Prevention and Control, Hengyang, 421001, Hunan, China.
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Öhnstedt E, Doñas C, Parv K, Pang Y, Lofton Tomenius H, Carrasco López M, Gannavarapu VR, Choi J, Ovezik M, Frank P, Jorvid M, Roos S, Vågesjö E, Phillipson M. Oral administration of CXCL12-expressing Limosilactobacillus reuteri improves colitis by local immunomodulatory actions in preclinical models. Am J Physiol Gastrointest Liver Physiol 2024; 327:G140-G153. [PMID: 38780469 DOI: 10.1152/ajpgi.00022.2024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/26/2024] [Revised: 04/26/2024] [Accepted: 05/02/2024] [Indexed: 05/25/2024]
Abstract
Treatments of colitis, inflammation of the intestine, rely on induction of immune suppression associated with systemic adverse events, including recurrent infections. This treatment strategy is specifically problematic in the increasing population of patients with cancer with immune checkpoint inhibitor (ICI)-induced colitis, as immune suppression also interferes with the ICI-treatment response. Thus, there is a need for local-acting treatments that reduce inflammation and enhance intestinal healing. Here, we investigated the effect and safety of bacterial delivery of short-lived immunomodulating chemokines to the inflamed intestine in mice with colitis. Colitis was induced by dextran sulfate sodium (DSS) alone or in combination with ICI (anti-PD1 and anti-CTLA-4), and Limosilactobacillus reuteri R2LC (L. reuteri R2LC) genetically modified to express the chemokine CXCL12-1α (R2LC_CXCL12, emilimogene sigulactibac) was given perorally. In addition, the pharmacology and safety of the formulated drug candidate, ILP100-Oral, were evaluated in rabbits. Peroral CXCL12-producing L. reuteri R2LC significantly improved colitis symptoms already after 2 days in mice with overt DSS and ICI-induced colitis, which in benchmarking experiments was demonstrated to be superior to treatments with anti-TNF-α, anti-α4β7, and corticosteroids. The mechanism of action involved chemokine delivery to Peyer's patches (PPs), confirmed by local CXCR4 signaling, and increased numbers of colonic, regulatory immune cells expressing IL-10 and TGF-β1. No systemic exposure or engraftment could be detected in mice, and product feasibility, pharmacology, and safety were confirmed in rabbits. In conclusion, peroral CXCL12-producing L. reuteri R2LC efficiently ameliorates colitis, enhances mucosal healing, and has a favorable safety profile.NEW & NOTEWORTHY Colitis symptoms are efficiently reduced by peroral administration of probiotic bacteria genetically modified to deliver CXCL12 locally to the inflamed intestine in several mouse models.
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Affiliation(s)
- Emelie Öhnstedt
- Ilya Pharma AB, Uppsala, Sweden
- Division of Integrative Physiology, Department of Medical Cell Biology, Uppsala University, Uppsala, Sweden
| | | | | | | | - Hava Lofton Tomenius
- Ilya Pharma AB, Uppsala, Sweden
- Division of Integrative Physiology, Department of Medical Cell Biology, Uppsala University, Uppsala, Sweden
| | | | - Venkata Ram Gannavarapu
- Division of Integrative Physiology, Department of Medical Cell Biology, Uppsala University, Uppsala, Sweden
| | - Jacueline Choi
- Division of Integrative Physiology, Department of Medical Cell Biology, Uppsala University, Uppsala, Sweden
| | - Maria Ovezik
- Division of Integrative Physiology, Department of Medical Cell Biology, Uppsala University, Uppsala, Sweden
| | | | | | - Stefan Roos
- Department of Molecular Sciences, Swedish University of Agriculture, Uppsala, Sweden
| | - Evelina Vågesjö
- Ilya Pharma AB, Uppsala, Sweden
- Division of Integrative Physiology, Department of Medical Cell Biology, Uppsala University, Uppsala, Sweden
| | - Mia Phillipson
- Division of Integrative Physiology, Department of Medical Cell Biology, Uppsala University, Uppsala, Sweden
- The Science for Life Laboratory, Uppsala University, Uppsala, Sweden
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4
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Jin Y, Lu Y, Jiang X, Wang M, Yuan Y, Zeng Y, Guo L, Li W. Accelerated infected wound healing by probiotic-based living microneedles with long-acting antibacterial effect. Bioact Mater 2024; 38:292-304. [PMID: 38745591 PMCID: PMC11091528 DOI: 10.1016/j.bioactmat.2024.05.008] [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: 01/29/2024] [Revised: 05/03/2024] [Accepted: 05/03/2024] [Indexed: 05/16/2024] Open
Abstract
Delays in infected wound healing are usually a result of bacterial infection and local inflammation, which imposes a significant and often underappreciated burden on patients and society. Current therapies for chronic wound infection generally suffer from limited drug permeability and frequent drug administration, owing to the existence of a wound biofilm that acts as a barrier restricting the entry of various antibacterial drugs. Here, we report the design of a biocompatible probiotic-based microneedle (MN) patch that can rapidly deliver beneficial bacteria to wound tissues with improved delivery efficiency. The probiotic is capable of continuously producing antimicrobial substances by metabolizing introduced glycerol, thereby facilitating infected wound healing through long-acting antibacterial and anti-inflammatory effects. Additionally, the beneficial bacteria can remain highly viable (>80 %) inside MNs for as long as 60 days at 4 °C. In a mouse model of Staphylococcus aureus-infected wounds, a single administration of the MN patch exhibited superior antimicrobial efficiency and wound healing performance in comparison with the control groups, indicating great potential for accelerating infected wound closure. Further development of live probiotic-based MN patches may enable patients to better manage chronically infected wounds.
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Affiliation(s)
- Yinli Jin
- Department of Thyroid and Breast Surgery, Zhongnan Hospital of Wuhan University, School of Pharmaceutical Sciences, Wuhan University, Wuhan, 430071, China
| | - Yun Lu
- Department of Pharmacy, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Xue Jiang
- Department of Thyroid and Breast Surgery, Zhongnan Hospital of Wuhan University, School of Pharmaceutical Sciences, Wuhan University, Wuhan, 430071, China
| | - Min Wang
- Department of Plastic Surgery, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Yaqi Yuan
- Department of Thyroid and Breast Surgery, Zhongnan Hospital of Wuhan University, School of Pharmaceutical Sciences, Wuhan University, Wuhan, 430071, China
| | - Yongnian Zeng
- Department of Thyroid and Breast Surgery, Zhongnan Hospital of Wuhan University, School of Pharmaceutical Sciences, Wuhan University, Wuhan, 430071, China
| | - Liang Guo
- Department of Plastic Surgery, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Wei Li
- Department of Thyroid and Breast Surgery, Zhongnan Hospital of Wuhan University, School of Pharmaceutical Sciences, Wuhan University, Wuhan, 430071, China
- TaiKang Center for Life and Medical Sciences, Wuhan University, Wuhan, China
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5
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Zhu Y, Tao X, Yan T, Cao S, Jiang P, Zhang Z, Li L, Wu Q. Lactobacillus murinus alleviated lung inflammation induced by PAHs in mice. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2024; 281:116662. [PMID: 38944008 DOI: 10.1016/j.ecoenv.2024.116662] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2024] [Revised: 06/16/2024] [Accepted: 06/26/2024] [Indexed: 07/01/2024]
Abstract
OBJECTIVE This study aimed to investigate the mechanism that Lactobacillus murinus (L. murinus) alleviated lung inflammation induced by polycyclic aromatic hydrocarbons (PAHs) exposure based on metabolomics. METHODS Female mice were administrated with PAHs mix, L. murinus and indoleacrylic acid (IA) or indolealdehyde (IAId). Microbial diversity in feces was detected by 16 S rRNA gene sequencing. Non-targeted metabolomics analysis in urine samples and targeted analysis of tryptophan metabolites in serum by UPLC-Orbitrap-MS and short-chain fatty acids (SCFA) in feces by GC-MS were performed, respectively. Flow cytometry was used to determine T helper immune cell differentiation in gut and lung tissues. The levels of IgE, IL-4 and IL-17A in the bronchoalveolar lavage fluid (BALF) or serum were detected by ELISA. The expressions of aryl hydrocarbon receptor (Ahr), cytochrome P450 1A1 (Cyp1a1) and forkheadbox protein 3 (Foxp3) genes and the histone deacetylation activity were detected by qPCR and by ELISA in lung tissues, respectively. RESULTS PAHs exposure induced lung inflammation and microbial composition shifts and tryptophan metabolism disturbance in mice. L. murinus alleviated PAHs-induced lung inflammation and inhibited T helper cell 17 (Th17) cell differentiation and promoted regulatory T cells (Treg) cell differentiation. L. murinus increased the levels of IA and IAId in the serum and regulated Th17/Treg imbalance by activating AhR. Additionally, L. murinus restored PAHs-induced decrease of butyric acid and valeric acid which can reduce the histone deacetylase (HDAC) level in the lung tissues, enhancing the expression of the Foxp3 gene and promoting Treg cell differentiation. CONCLUSION our study illustrated that L. murinus alleviated PAHs-induced lung inflammation and regulated Th17/Treg cell differentiation by regulating host tryptophan metabolism and SCFA levels. The study provided new insights into the reciprocal influence between gut microbiota, host metabolism and the immune system, suggesting that L. murinus might have the potential as a novel therapeutic strategy for lung diseases caused by environmental pollution in the future.
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Affiliation(s)
- Yuqi Zhu
- The Key Laboratory of Modern Toxicology of Ministry of Education and Department of Health Inspection and Quarantine, School of Public Health, Nanjing Medical University, Nanjing 211166, China
| | - Xuna Tao
- The Key Laboratory of Modern Toxicology of Ministry of Education and Department of Health Inspection and Quarantine, School of Public Health, Nanjing Medical University, Nanjing 211166, China
| | - Tongtong Yan
- The Key Laboratory of Modern Toxicology of Ministry of Education and Department of Health Inspection and Quarantine, School of Public Health, Nanjing Medical University, Nanjing 211166, China
| | - Shuyuan Cao
- The Key Laboratory of Modern Toxicology of Ministry of Education and Department of Health Inspection and Quarantine, School of Public Health, Nanjing Medical University, Nanjing 211166, China
| | - Ping Jiang
- The Key Laboratory of Modern Toxicology of Ministry of Education and Department of Health Inspection and Quarantine, School of Public Health, Nanjing Medical University, Nanjing 211166, China
| | - Zhan Zhang
- The Key Laboratory of Modern Toxicology of Ministry of Education and Department of Health Inspection and Quarantine, School of Public Health, Nanjing Medical University, Nanjing 211166, China
| | - Lei Li
- The Key Laboratory of Modern Toxicology of Ministry of Education and Department of Health Inspection and Quarantine, School of Public Health, Nanjing Medical University, Nanjing 211166, China
| | - Qian Wu
- The Key Laboratory of Modern Toxicology of Ministry of Education and Department of Health Inspection and Quarantine, School of Public Health, Nanjing Medical University, Nanjing 211166, China.
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Wang J, Li Y, Mu Y, Huang K, Li D, Lan C, Cui Y, Wang J. Missing microbes in infants and children in the COVID-19 pandemic: a study of 1,126 participants in Beijing, China. SCIENCE CHINA. LIFE SCIENCES 2024; 67:1739-1750. [PMID: 38748355 DOI: 10.1007/s11427-023-2488-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Accepted: 11/16/2023] [Indexed: 08/09/2024]
Abstract
The COVID-19 pandemic has caused many fatalities worldwide and continues to affect the health of the recovered patients in the form of long-COVID. In this study, we compared the gut microbiome of uninfected infants and children before the pandemic began (BEFORE cohort, n=906) to that of after the pandemic (AFTER cohort, n=220) to examine the potential impact of social distancing and life habit changes on infant/children gut microbiome. Based on 16S rRNA sequencing, we found a significant change in microbiome composition after the pandemic, with Bacteroides enterotype increasing to 35.45% from 30.46% before the pandemic. qPCR quantification indicated that the bacterial loads of seven keystone taxa decreased by 91.69%-19.58%. Quantitative microbiome profiling, used to enhance the resolution in detecting microbiome differences, revealed a greater explained variance of pandemic on microbiome compared to gender, as well as a significant decrease in bacterial loads in 15 of the 20 major genera. The random forest age-predictor indicated the gut microbiomes were less mature in the after-pandemic cohort than in the before-pandemic cohort in the children group (3-12 years old) and had features of a significantly younger age (average of 1.86 years). Lastly, body weight and height were significantly lower in the after-pandemic cohort than in the before-pandemic cohort in infants (<1 year of age), which was associated with a decrease in bacterial loads in the fecal microbiome.
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Affiliation(s)
- Jiejing Wang
- CAS Key Lab for Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Yuejuan Li
- CAS Key Lab for Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Yu Mu
- Beijing Dr. CUIYUTAO Clinic, Beijing, 100028, China
| | - Kefei Huang
- Beijing Dr. CUIYUTAO Clinic, Beijing, 100028, China
| | - Danyi Li
- R-Institute Co. Ltd., Beijing, 100011, China
| | - Canhui Lan
- R-Institute Co. Ltd., Beijing, 100011, China
| | - Yutao Cui
- Beijing Dr. CUIYUTAO Clinic, Beijing, 100028, China.
| | - Jun Wang
- CAS Key Lab for Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101, China.
- University of Chinese Academy of Sciences, Beijing, 100049, China.
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Kachi K, Sato T, Nagasawa M, Cann I, Atomi H. The Lreu_1276 protein from Limosilactobacillus reuteri represents a third family of dihydroneopterin triphosphate pyrophosphohydrolases in bacteria. Appl Environ Microbiol 2024; 90:e0081424. [PMID: 38888337 PMCID: PMC11267939 DOI: 10.1128/aem.00814-24] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2024] [Accepted: 05/14/2024] [Indexed: 06/20/2024] Open
Abstract
Tetrahydrofolate is a cofactor involved in C1 metabolism including biosynthesis pathways for adenine and serine. In the classical tetrahydrofolate biosynthesis pathway, the steps removing three phosphate groups from the precursor 7,8-dihydroneopterin triphosphate (DHNTP) remain unclear in many bacteria. DHNTP pyrophosphohydrolase hydrolyzes pyrophosphate from DHNTP and produces 7,8-dihydroneopterin monophosphate. Although two structurally distinct DHNTP pyrophosphohydrolases have been identified in the intestinal bacteria Lactococcus lactis and Escherichia coli, the distribution of their homologs is limited. Here, we aimed to identify a third DHNTP pyrophosphohydrolase gene in the intestinal lactic acid bacterium Limosilactobacillus reuteri. In a gene operon including genes involved in dihydrofolate biosynthesis, we focused on the lreu_1276 gene, annotated as Ham1 family protein or XTP/dITP diphosphohydrolase, as a candidate encoding DHNTP pyrophosphohydrolase. The Lreu_1276 recombinant protein was prepared using E. coli and purified. Biochemical analyses of the reaction product revealed that the Lreu_1276 protein displays significant pyrophosphohydrolase activity toward DHNTP. The optimal reaction temperature and pH were 35°C and around 7, respectively. Substrate specificity was relatively strict among 17 tested compounds. Although previously characterized DHNTP pyrophosphohydrolases prefer Mg2+, the Lreu_1276 protein exhibited maximum activity in the presence of Mn2+, with a specific activity of 28.2 ± 2.0 µmol min-1 mg-1 in the presence of 1 mM Mn2+. The three DHNTP pyrophosphohydrolases do not share structural similarity to one another, and the distribution of their homologs does not overlap, implying that the Lreu_1276 protein represents a third structurally novel DHNTP pyrophosphohydrolase in bacteria. IMPORTANCE The identification of a structurally novel DHNTP pyrophosphohydrolase in L. reuteri provides valuable information in understanding tetrahydrofolate biosynthesis in bacteria that possess lreu_1276 homologs. Interestingly, however, even with the identification of a third family of DHNTP pyrophosphohydrolases, there are still a number of bacteria that do not harbor homologs for any of the three genes while possessing other genes involved in the biosynthesis of the pterin ring structure. This suggests the presence of an unrecognized DHNTP pyrophosphohydrolase gene in bacteria. As humans do not harbor DHNTP pyrophosphohydrolase, the high structural diversity of enzymes responsible for a reaction in tetrahydrofolate biosynthesis may provide an advantage in designing inhibitors targeting a specific group of bacteria in the intestinal microbiota.
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Affiliation(s)
- Kaede Kachi
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Kyoto, Japan
| | - Takaaki Sato
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Kyoto, Japan
- Integrated Research Center for Carbon Negative Science, Kyoto University, Kyoto, Japan
| | - Maina Nagasawa
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Kyoto, Japan
| | - Isaac Cann
- Department of Animal Science, University of Illinois Urbana-Champaign, Urbana, Illinois, USA
- Department of Microbiology, University of Illinois Urbana-Champaign, Urbana, Illinois, USA
- Carl R. Woese Institute for Genomic Biology, University of Illinois Urbana-Champaign, Urbana, Illinois, USA
| | - Haruyuki Atomi
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Kyoto, Japan
- Integrated Research Center for Carbon Negative Science, Kyoto University, Kyoto, Japan
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Ermann Lundberg L, Pallabi Mishra P, Liu P, Forsberg MM, Sverremark-Ekström E, Grompone G, Håkansson S, Linninge C, Roos S. Bifidobacterium longum subsp. longum BG-L47 boosts growth and activity of Limosilactobacillus reuteri DSM 17938 and its extracellular membrane vesicles. Appl Environ Microbiol 2024; 90:e0024724. [PMID: 38888338 PMCID: PMC11267924 DOI: 10.1128/aem.00247-24] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2024] [Accepted: 05/14/2024] [Indexed: 06/20/2024] Open
Abstract
The aim of this study was to identify a Bifidobacterium strain that improves the performance of Limosilactobacillus reuteri DSM 17938. Initial tests showed that Bifidobacterium longum subsp. longum strains boosted the growth of DSM 17938 during in vivo-like conditions. Further characterization revealed that one of the strains, BG-L47, had better bile and acid tolerance compared to BG-L48, as well as mucus adhesion compared to both BG-L48 and the control strain BB536. BG-L47 also had the capacity to metabolize a broad range of carbohydrates and sugar alcohols. Mapping of glycoside hydrolase (GH) genes of BG-L47 and BB536 revealed many GHs associated with plant-fiber utilization. However, BG-L47 had a broader phenotypic fiber utilization capacity. In addition, B. longum subsp. longum cells boosted the bioactivity of extracellular membrane vesicles (MV) produced by L. reuteri DSM 17938 during co-cultivation. Secreted 5'-nucleotidase (5'NT), an enzyme that converts AMP into the signal molecule adenosine, was increased in MV boosted by BG-L47. The MV exerted an improved antagonistic effect on the pain receptor transient receptor potential vanilloid 1 (TRPV1) and increased the expression of the immune development markers IL-6 and IL-1ß in a peripheral blood mononuclear cell (PBMC) model. Finally, the safety of BG-L47 was evaluated both by genome safety assessment and in a human safety study. Microbiota analysis showed that the treatment did not induce significant changes in the composition. In conclusion, B. longum subsp. longum BG-L47 has favorable physiological properties, can boost the in vitro activity of L. reuteri DSM 17938, and is safe for consumption, making it a candidate for further evaluation in probiotic studies. IMPORTANCE By using probiotics that contain a combination of strains with synergistic properties, the likelihood of achieving beneficial interactions with the host can increase. In this study, we first performed a broad screening of Bifidobacterium longum subsp. longum strains in terms of synergistic potential and physiological properties. We identified a superior strain, BG-L47, with favorable characteristics and potential to boost the activity of the known probiotic strain Limosilactobacillus reuteri DSM 17938. Furthermore, we demonstrated that BG-L47 is safe for consumption in a human randomized clinical study and by performing a genome safety assessment. This work illustrates that bacteria-bacteria interactions differ at the strain level and further provides a strategy for finding and selecting companion strains of probiotics.
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Affiliation(s)
- Ludwig Ermann Lundberg
- Department of Molecular Sciences, Uppsala BioCenter, Swedish University of Agricultural Sciences, Uppsala, Sweden
- BioGaia, Stockholm, Sweden
| | - Punya Pallabi Mishra
- Department of Molecular Sciences, Uppsala BioCenter, Swedish University of Agricultural Sciences, Uppsala, Sweden
| | | | - Manuel Mata Forsberg
- The Department of Molecular Biosciences, The Wenner-Gren Institute, Stockholm University, Stockholm, Sweden
| | - Eva Sverremark-Ekström
- The Department of Molecular Biosciences, The Wenner-Gren Institute, Stockholm University, Stockholm, Sweden
| | | | - Sebastian Håkansson
- BioGaia, Stockholm, Sweden
- Division of Applied Microbiology, Department of Chemistry, Lund University, Lund, Sweden
| | - Caroline Linninge
- BioGaia, Stockholm, Sweden
- Department of Food Technology, Engineering and Nutrition, Lund University, Lund, Sweden
| | - Stefan Roos
- Department of Molecular Sciences, Uppsala BioCenter, Swedish University of Agricultural Sciences, Uppsala, Sweden
- BioGaia, Stockholm, Sweden
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9
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Xiong J, Ma YJ, Liao XS, Li LQ, Bao L. Gut microbiota in infants with food protein enterocolitis. Pediatr Res 2024:10.1038/s41390-024-03424-9. [PMID: 39033251 DOI: 10.1038/s41390-024-03424-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/02/2024] [Accepted: 07/07/2024] [Indexed: 07/23/2024]
Abstract
BACKGROUND We explored the effects of two formulas, extensively hydrolyzed formula (EHF) and amino acid-based formula (AAF), on the gut microbiota and short-chain fatty acids (SCFAs) in infants with food protein-induced enterocolitis syndrome (FPIES). METHODS Fecal samples of thirty infants with bloody diarrhea receiving EHF or AAF feeding were collected at enrollment, diagnosis of FPIES, and four weeks after diagnosis. The gut microbiota and SCFAs were analyzed using 16 S rRNA gene sequencing and gas chromatography-mass spectrometry, respectively. RESULTS Microbial diversity of FPIES infants was significantly different from that of the controls. FPIES infants had a significantly lower abundance of Bifidobacterium and a higher level of hexanoic acid compared with controls. In EHF-fed FPIES infants, microbial richness was significantly decreased over time; while the microbial diversity and richness in AAF-fed FPIES infants exhibited no differences at the three time points. By four weeks after diagnosis, EHF-fed FPIES infants contained a decreased abundance of Acinetobacter, whereas AAF-fed FPIES infants contained an increased abundance of Escherichia-Shigella. EHF-fed infants experienced significantly decreased levels of butyric acid and hexanoic acid at four weeks after diagnosis. CONCLUSIONS Infants with FPIES had intestinal dysbiosis and different formulas differentially affected gut microbiota and SCFAs in FPIES infants. IMPACT We firstly report the impacts of two different nutritional milk formulas on the gut microbial composition and SCFAs levels in infants with FPIES. We show that infants with FPIES have obvious intestinal dysbiosis and different formulas differentially affect gut microbiota and SCFAs in FPIES infants. Understanding the effects of different types of formulas on gut microbial colonization and composition, as well as the related metabolites in infants with FPIES could help provide valuable insights for making choices about feeding practices.
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Affiliation(s)
- Jing Xiong
- Department of Neonatology, Children's Hospital of Chongqing Medical University, Chongqing, China
- Ministry of Education Key Laboratory of Child Development and Disorders, Children's Hospital of Chongqing Medical University, Chongqing, China
- National Clinical Research Center for Child Health and Disorders, Children's Hospital of Chongqing Medical University, Chongqing, China
- China International Science and Technology Cooperation base of Child Development and Critical Disorders, Children's Hospital of Chongqing Medical University, Chongqing, China
- Chongqing Key Laboratory of Pediatric Metabolism and Inflammatory Diseases, Children's Hospital of Chongqing Medical University, Chongqing, China
| | - Yu-Jue Ma
- Department of Neonatology, Children's Hospital of Chongqing Medical University, Chongqing, China
- Ministry of Education Key Laboratory of Child Development and Disorders, Children's Hospital of Chongqing Medical University, Chongqing, China
- National Clinical Research Center for Child Health and Disorders, Children's Hospital of Chongqing Medical University, Chongqing, China
- China International Science and Technology Cooperation base of Child Development and Critical Disorders, Children's Hospital of Chongqing Medical University, Chongqing, China
- Chongqing Key Laboratory of Pediatric Metabolism and Inflammatory Diseases, Children's Hospital of Chongqing Medical University, Chongqing, China
| | - Xing-Sheng Liao
- Department of Neonatology, The first People's Hospital of Jiulongpo District, Chongqing, China
| | - Lu-Quan Li
- Department of Neonatology, Children's Hospital of Chongqing Medical University, Chongqing, China.
- Ministry of Education Key Laboratory of Child Development and Disorders, Children's Hospital of Chongqing Medical University, Chongqing, China.
- National Clinical Research Center for Child Health and Disorders, Children's Hospital of Chongqing Medical University, Chongqing, China.
- China International Science and Technology Cooperation base of Child Development and Critical Disorders, Children's Hospital of Chongqing Medical University, Chongqing, China.
- Chongqing Key Laboratory of Pediatric Metabolism and Inflammatory Diseases, Children's Hospital of Chongqing Medical University, Chongqing, China.
| | - Lei Bao
- Department of Neonatology, Children's Hospital of Chongqing Medical University, Chongqing, China.
- Ministry of Education Key Laboratory of Child Development and Disorders, Children's Hospital of Chongqing Medical University, Chongqing, China.
- National Clinical Research Center for Child Health and Disorders, Children's Hospital of Chongqing Medical University, Chongqing, China.
- China International Science and Technology Cooperation base of Child Development and Critical Disorders, Children's Hospital of Chongqing Medical University, Chongqing, China.
- Chongqing Key Laboratory of Pediatric Metabolism and Inflammatory Diseases, Children's Hospital of Chongqing Medical University, Chongqing, China.
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Tantibhadrasapa A, Li S, Buddhasiri S, Sukjoi C, Mongkolkarvin P, Boonpan P, Wongpalee SP, Paenkaew P, Sutheeworapong S, Nakphaichit M, Nitisinprasert S, Hsieh MH, Thiennimitr P. Probiotic Limosilactobacillus reuteri KUB-AC5 decreases urothelial cell invasion and enhances macrophage killing of uropathogenic Escherichia coli in vitro study. Front Cell Infect Microbiol 2024; 14:1401462. [PMID: 39091675 PMCID: PMC11291381 DOI: 10.3389/fcimb.2024.1401462] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2024] [Accepted: 07/01/2024] [Indexed: 08/04/2024] Open
Abstract
Introduction Bacterial urinary tract infections (UTI) are among the most common infectious diseases worldwide. The rise of multidrug-resistant (MDR) uropathogenic Escherichia coli (UPEC) UTI cases is a significant threat to healthcare systems. Several probiotic bacteria have been proposed as an alternative to combat MDR UTI. Lactic acid bacteria in the genus Limosilactobacillus are some of the most studied and used probiotics. However, strain-specific effects play a critical role in probiotic properties. L. reuteri KUB-AC5 (AC5), isolated from the chicken gut, confers antimicrobial and immunobiotic effects against some human pathogens. However, the antibacterial and immune modulatory effects of AC5 on UPEC have never been explored. Methods Here, we investigated both the direct and indirect effects of AC5 against UPEC isolates (UTI89, CFT073, and clinical MDR UPEC AT31) in vitro. Using a spot-on lawn, agar-well diffusion, and competitive growth assays, we found that viable AC5 cells and cell-free components of this probiotic significantly reduced the UPEC growth of all strains tested. The human bladder epithelial cell line UM-UC-3 was used to assess the adhesion and pathogen-attachment inhibition properties of AC5 on UPEC. Results and discussion Our data showed that AC5 can attach to UM-UC-3 and decrease UPEC attachment in a dose-dependent manner. Pretreatment of UPEC-infected murine macrophage RAW264.7 cells with viable AC5 (multiplicity of infection, MOI = 1) for 24 hours enhanced macrophage-killing activity and increased proinflammatory (Nos2, Il6, and Tnfa) and anti-inflammatory (Il10) gene expression. These findings indicate the gut-derived AC5 probiotic could be a potential urogenital probiotic against MDR UTI.
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Affiliation(s)
| | - Songbo Li
- Department of Microbiology, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
- Key Laboratory of Tumor Immunopathology, Youjiang Medical University for Nationalities, Baise, China
| | - Songphon Buddhasiri
- Research Center for Veterinary Biosciences and Veterinary Public Health, Chiang Mai University, Chiang Mai, Thailand
- Faculty of Veterinary Medicine, Chiang Mai University, Chiang Mai, Thailand
| | - Chutikarn Sukjoi
- Department of Microbiology, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
| | - Panupon Mongkolkarvin
- Department of Microbiology, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
| | - Pattarapon Boonpan
- Department of Microbiology, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
| | - Somsakul Pop Wongpalee
- Department of Microbiology, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
| | - Prasobsook Paenkaew
- Department of Microbiology, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
| | - Sawannee Sutheeworapong
- Pilot Plant Development and Training Institute (PDTI), King Mongkut’s University of Technology Thonburi (KMUTT), Bangkok, Thailand
| | - Massalin Nakphaichit
- Department of Biotechnology, Faculty of Agro-Industry, Kasetsart University, Bangkok, Thailand
- Specialized Research Unit: Probiotics and Prebiotics for Health, Faculty of Agro-Industry, Kasetsart University, Bangkok, Thailand
| | - Sunee Nitisinprasert
- Department of Biotechnology, Faculty of Agro-Industry, Kasetsart University, Bangkok, Thailand
- Specialized Research Unit: Probiotics and Prebiotics for Health, Faculty of Agro-Industry, Kasetsart University, Bangkok, Thailand
| | - Michael H. Hsieh
- Department of Urology, School of Medicine and Health Sciences, The George Washington University, Washington, DC, United States
- Department of Pediatrics, School of Medicine and Health Sciences, The George Washington University, Washington, DC, United States
- Department of Microbiology, Immunology, and Tropical Medicine, School of Medicine and Health Sciences, The George Washington University, Washington, DC, United States
| | - Parameth Thiennimitr
- Department of Microbiology, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
- Research Center of Microbial Diversity and Sustainable Utilization, Chiang Mai University, Chiang Mai, Thailand
- Center of Multidisciplinary Technology for Advanced Medicine, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
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11
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Bodnar TS, Ainsworth-Cruickshank G, Billy V, Wegener Parfrey L, Weinberg J, Raineki C. Alcohol consumption during pregnancy differentially affects the fecal microbiota of dams and offspring. Sci Rep 2024; 14:16121. [PMID: 38997303 PMCID: PMC11245617 DOI: 10.1038/s41598-024-64313-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2023] [Accepted: 06/07/2024] [Indexed: 07/14/2024] Open
Abstract
Microbiota imbalances are linked to inflammation and disease, as well as neurodevelopmental conditions where they may contribute to behavioral, physiological, and central nervous system dysfunction. By contrast, the role of the microbiota in Fetal Alcohol Spectrum Disorder (FASD), the group of neurodevelopmental conditions that can occur following prenatal alcohol exposure (PAE), has not received similar attention. Here we utilized a rodent model of alcohol consumption during pregnancy to characterize the impact of alcohol on the microbiota of dam-offspring dyads. Overall, bacterial diversity decreased in alcohol-consuming dams and community composition differed from that of controls in alcohol-consuming dams and their offspring. Bacterial taxa and predicted biochemical pathway composition were also altered with alcohol consumption/exposure; however, there was minimal overlap between the changes in dams and offspring. These findings illuminate the potential importance of the microbiota in the pathophysiology of FASD and support investigation into novel microbiota-based interventions.
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Affiliation(s)
- Tamara S Bodnar
- Department of Cellular and Physiological Sciences, University of British Columbia, Vancouver, BC, Canada.
- Department of Biological Sciences, University of Calgary, 2500 University Dr NW, Calgary, AB, T2N 1N4, Canada.
| | | | - Vincent Billy
- Department of Cellular and Physiological Sciences, University of British Columbia, Vancouver, BC, Canada
| | - Laura Wegener Parfrey
- Department of Zoology and Biodiversity Research Centre, University of British Columbia, Vancouver, BC, Canada
- Department of Botany, University of British Columbia, Vancouver, BC, Canada
| | - Joanne Weinberg
- Department of Cellular and Physiological Sciences, University of British Columbia, Vancouver, BC, Canada
| | - Charlis Raineki
- Department of Cellular and Physiological Sciences, University of British Columbia, Vancouver, BC, Canada
- Department of Psychology, Brock University, St. Catharines, ON, Canada
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12
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LiYa L, XinSheng Z, Xiang H, Zhao L, Lu L, XiuMing L, Ye L, Jing C, KeMing Z, HongChi W, Jing X, Yang C, Xiu C, HongBo L, ShuQin Y, Fang L, YingHua L. A cross-sectional survey study on the correlation analysis of nutritional status and intestinal flora in patients with esophageal cancer. Front Nutr 2024; 11:1424039. [PMID: 39070256 PMCID: PMC11275563 DOI: 10.3389/fnut.2024.1424039] [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: 04/27/2024] [Accepted: 06/25/2024] [Indexed: 07/30/2024] Open
Abstract
Objective This study aims to examine the nutritional status of individuals diagnosed with esophageal cancer and compare the nutritional indicators and intestinal flora between malnourished and non-malnourished patients. The findings aim to contribute to the early prevention of malnutrition and the development of interventions targeting the intestinal flora to treat esophageal cancer. Methods An 80-patient sample of hospitalized individuals with esophageal cancer was selected from the radiotherapy department of our hospital between July 2021 and July 2022 to evaluate NRS2002 scores and PG-SGA scores. This cross-sectional analysis aimed to examine the disparities in dietary nutrient intake, blood indicators, body composition, and fecal intestinal flora between malnourished and non-malnourished patients with esophageal cancer. Additionally, we randomly selected 40 cases to predict and analyze the relationship between intestinal flora and malnutrition. Results The incidence of nutritional risk and malnutrition in patients with esophageal cancer was 62.5% and 60%, respectively. The low intake of carbohydrates and dietary fiber in the malnutrition group was statistically significant compared to those in the non-malnutrition group (P < 0.05). The albumin (ALB) level was lower in the malnutrition group than in the non-malnutrition group, while the C-reactive protein (CRP) level was higher; these differences were also statistically significant (P < 0.05). The basal metabolic rate, phase angle, body cell mass, muscle mass, skeletal muscle index, and fat-free mass index in the malnutrition group all decreased compared to the non-malnutrition group. The extracellular water/total body water was higher than that in the non-malnutrition group, which was also statistically significant (P < 0.05). As shown by 16S rDNA sequencing of fecal intestinal flora, there was no significant difference in α and β diversity between the malnutrition and non-malnutrition groups; at the genus level, significant differences were observed for Selimonas, Clostridioides, Dielma, Lactobacillus, and [Eubacterium]_siraeum_group. However, Dielma, Sellimonas, and Clostridioides were significantly lower in the malnutrition group than in the non-malnutrition group, while Anaerococcus, Atopobium, Eubacterium_siraeum_group, and Lactobacillus were significantly higher in the malnutrition group. Correlation analysis between different genera and clinical indicators showed that Lactobacillus was positively correlated with ALB, dietary energy, intracellular water/total body water (ICW/TBW), phase angle (PA), muscle mass (MM), skeletal muscle mass (SMM), body cell mass (BCM), basal metabolic rate (BMR), appendicular skeletal muscle mass (ASMM), total body water (TBW), fat-free mass index (FFMI), skeletal muscle index (SMI), fat-free mass (FFM), Weight, body mass index (BMI) (r > 0, P < 0.05), but negatively correlated with PG-SGA score, NRS2002 score, and extracellular water/total body water (ECW/TBW) (r < 0, P < 0.05). Based on PG-SGA, there was only a low accuracy for identifying nutrient deficiency (most areas under curve (AUC) values fell within 0.5 to 0.7, or even lower), with Lachnoclostridium's AUC being 0.688 (CI = 0.518-0.858) and Lactobacillus_salivarius_g_Lactobacillus's AUC being 0.257 (CI = 0.098-0.416). A KEGG functional analysis based on 16S data indicated potential differences affecting glucose metabolism pathways and the synthesis or division of DNA, influencing the onset, development, and prognosis of esophageal cancer patients. Conclusion Esophageal cancer patients are more likely to be malnourished. The nutritional status of these patients is closely linked to the intake of carbohydrates and fiber, albumin levels, inflammation levels, and lean body mass. Furthermore, the patient's intestinal flora composition plays a significant role in their nutritional well-being. Consequently, modulating the intestinal flora holds promise as a potential therapeutic approach for addressing malnutrition in esophageal cancer patients. Clinical trial registration ChiCTR2100048141.
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Affiliation(s)
- Li LiYa
- Department of Nutrition, The First Medical Center, Chinese People's Liberation Army (PLA) General Hospital, Beijing, China
| | - Zhang XinSheng
- Department of Nutrition, The First Medical Center, Chinese People's Liberation Army (PLA) General Hospital, Beijing, China
| | - Huang Xiang
- Department of Radiation Oncology, Fifth Medical Center, Chinese People's Liberation Army (PLA) General Hospital, Beijing, China
| | - Liu Zhao
- Department of Nutrition, The First Medical Center, Chinese People's Liberation Army (PLA) General Hospital, Beijing, China
| | - Liu Lu
- Department of Nutrition, The First Medical Center, Chinese People's Liberation Army (PLA) General Hospital, Beijing, China
| | - Lv XiuMing
- Department of Clinical Nutrition, Hebei Yanda Hospital, Langfang, China
| | - Li Ye
- Department of Radiation Oncology, Fifth Medical Center, Chinese People's Liberation Army (PLA) General Hospital, Beijing, China
| | - Chen Jing
- Department of Radiation Oncology, Fifth Medical Center, Chinese People's Liberation Army (PLA) General Hospital, Beijing, China
| | - Zhang KeMing
- Department of Nutrition, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Wang HongChi
- Department of Radiation Oncology, Fifth Medical Center, Chinese People's Liberation Army (PLA) General Hospital, Beijing, China
| | - Xia Jing
- Department of Endocrinology, Jiangyin Hospital of Traditional Chinese Medicine, Wuxi, China
| | - Cong Yang
- Department of Radiation Oncology, Fifth Medical Center, Chinese People's Liberation Army (PLA) General Hospital, Beijing, China
| | - Cui Xiu
- Department of Nutrition, The Second Affiliated Hospital of Guilin Medical University, Guilin, China
| | - Long HongBo
- Department of Nutrition, Fangshan Hospital Beijing University of Chinese Medicine, Beijing, China
| | - You ShuQin
- Department of Endocrinology, Ili Kazakh Autonomous Prefecture, Huocheng County Hospital of Traditional Chinese Medicine, Yili, China
| | - Liu Fang
- Department of Radiation Oncology, Fifth Medical Center, Chinese People's Liberation Army (PLA) General Hospital, Beijing, China
| | - Liu YingHua
- Department of Nutrition, The First Medical Center, Chinese People's Liberation Army (PLA) General Hospital, Beijing, China
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Yang Y, Zhang Z, Wang Y, Rao J, Sun J, Wu Z, He J, Tan X, Liang L, Yu Q, Wu Z, Zou H, Zhang H, Dong M, Zheng J, Feng S, Cheng W, Wei H. Colonization of microbiota derived from Macaca fascicularis, Bama miniature pigs, beagle dogs, and C57BL/6J mice alleviates DSS-induced colitis in germ-free mice. Microbiol Spectr 2024; 12:e0038824. [PMID: 38990027 PMCID: PMC11302040 DOI: 10.1128/spectrum.00388-24] [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: 02/12/2024] [Accepted: 06/14/2024] [Indexed: 07/12/2024] Open
Abstract
Fecal microbiota transplantation (FMT) is an innovative and promising treatment for inflammatory bowel disease (IBD), which is related to the capability of FMT to supply functional microorganisms to improve recipient gut health. Numerous studies have highlighted considerable variability in the efficacy of FMT interventions for IBD. Several factors, including the composition of the donor microorganisms, significantly affect the efficacy of FMT in the treatment of IBD. Consequently, identifying the functional microorganisms in the donor is crucial for enhancing the efficacy of FMT. To explore potential common anti-inflammatory bacteria with therapeutic implications for IBD, germ-free (GF) BALB/c mice were pre-colonized with fecal microbiota obtained from diverse donors, including Macaca fascicularis (MCC_FMT), Bama miniature pigs (BP_FMT), beagle dogs (BD_FMT), and C57BL/6 J mice (Mice_FMT). Subsequently, mice were treated with dextran sodium sulfate (DSS). As expected, the symptoms of colitis were alleviated by MCC_FMT, BP_FMT, BD_FMT, and Mice_FMT, as demonstrated by the prevention of an elevated disease activity index in mice. Additionally, the utilization of distinct donors protected the intestinal barrier and contributed to the regulation of cytokine homeostasis. Metagenomic sequencing data showed that the microbial community structure and dominant species were significantly different among the four groups, which may be linked to variations in the anti-inflammatory efficacy observed in the respective groups. Notably, Lactobacillus reuteri and Flavonifractor plautii were consistently present in all four groups. L. reuteri exhibited a significant negative correlation with IL-1β, and animal studies further confirmed its efficacy in alleviating IBD, suggesting the presence of common functional bacteria across different donors that exert anti-inflammatory effects. This study provides essential foundational data for the potential clinical applications of FMT.IMPORTANCEDespite variations in efficacy observed among donors, numerous studies have underscored the potential of fecal microbiota transplantation (FMT) for managing inflammatory bowel disease (IBD), indicating the presence of shared anti-IBD bacterial species. In the present study, the collective anti-inflammatory efficacy observed across all four donor groups prompted the identification of two common bacterial species using metagenomics. A significant negative correlation between Lactobacillus reuteri and IL-1β was revealed. Furthermore, mice gavaged with L. reuteri successfully managed the colitis challenge induced by dextran sodium sulfate (DSS), suggesting that L. reuteri may act as an efficacious bacterium mediating shared anti-inflammatory effects among variable donors. This finding highlights the utilization of variable donors to screen FMT core bacteria, which may be a novel strategy for developing FMT applications.
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Affiliation(s)
- Yapeng Yang
- Central Laboratory, Clinical Medicine Scientific and Technical Innovation Park, Shanghai Tenth People’s Hospital, Tongji University, Shanghai, China
- State Key Laboratory of Agricultural Microbiology, College of Animal Sciences and Technology, Huazhong Agricultural University, Wuhan, Hubei Province, China
| | - Zeyue Zhang
- State Key Laboratory of Agricultural Microbiology, College of Animal Sciences and Technology, Huazhong Agricultural University, Wuhan, Hubei Province, China
| | - Yuqing Wang
- Central Laboratory, Clinical Medicine Scientific and Technical Innovation Park, Shanghai Tenth People’s Hospital, Tongji University, Shanghai, China
- State Key Laboratory of Agricultural Microbiology, College of Animal Sciences and Technology, Huazhong Agricultural University, Wuhan, Hubei Province, China
| | - Junhua Rao
- Guangdong Key Laboratory of Animal Conservation and Resource Utilization, Guangdong Public Laboratory of Wild Animal Conservation and Utilization, Institute of Zoology, Guangdong Academy of Sciences, Guangzhou, China
| | - Jing Sun
- Chongqing Academy of Animal Sciences, Chongqing, China
- Key Laboratory of Pig Industry Sciences, Ministry of Agriculture, Chongqing, China
| | - Zhimin Wu
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
- School of Life Sciences, Inner Mongolia University, Hohhot, China
| | - Jinhui He
- State Key Laboratory of Agricultural Microbiology, College of Animal Sciences and Technology, Huazhong Agricultural University, Wuhan, Hubei Province, China
| | - Xiang Tan
- State Key Laboratory of Agricultural Microbiology, College of Animal Sciences and Technology, Huazhong Agricultural University, Wuhan, Hubei Province, China
| | - Lifeng Liang
- Precision Medicine Institute, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Qian Yu
- Precision Medicine Institute, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Zhifeng Wu
- State Key Laboratory of Agricultural Microbiology, College of Animal Sciences and Technology, Huazhong Agricultural University, Wuhan, Hubei Province, China
| | - Huicong Zou
- State Key Laboratory of Agricultural Microbiology, College of Animal Sciences and Technology, Huazhong Agricultural University, Wuhan, Hubei Province, China
| | - Hang Zhang
- State Key Laboratory of Agricultural Microbiology, College of Animal Sciences and Technology, Huazhong Agricultural University, Wuhan, Hubei Province, China
| | - Miaomiao Dong
- State Key Laboratory of Agricultural Microbiology, College of Animal Sciences and Technology, Huazhong Agricultural University, Wuhan, Hubei Province, China
| | - Jixia Zheng
- State Key Laboratory of Agricultural Microbiology, College of Animal Sciences and Technology, Huazhong Agricultural University, Wuhan, Hubei Province, China
| | - Shuaifei Feng
- State Key Laboratory of Agricultural Microbiology, College of Animal Sciences and Technology, Huazhong Agricultural University, Wuhan, Hubei Province, China
| | - Wei Cheng
- State Key Laboratory of Agricultural Microbiology, College of Animal Sciences and Technology, Huazhong Agricultural University, Wuhan, Hubei Province, China
| | - Hong Wei
- Central Laboratory, Clinical Medicine Scientific and Technical Innovation Park, Shanghai Tenth People’s Hospital, Tongji University, Shanghai, China
- State Key Laboratory of Agricultural Microbiology, College of Animal Sciences and Technology, Huazhong Agricultural University, Wuhan, Hubei Province, China
- Yu‐Yue Pathology Scientific Research Center, Chongqing, China
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Tabatabaii SA, Khanbabaee G, Sadr S, Farahbakhsh N, Modarresi SZ, Pourghasem M, Hajipour M. The effect of Lactobacillus reuteri on pulmonary function test and growth of cystic fibrosis patients. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2024. [PMID: 38982876 DOI: 10.1002/jsfa.13732] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Revised: 06/10/2024] [Accepted: 06/17/2024] [Indexed: 07/11/2024]
Abstract
INTRODUCTION Cystic fibrosis (CF) patients frequently experience gut microbiota dysbiosis. Probiotic supplementation is a potential therapeutic approach to modify gut microbiota and improve CF management through the gut-lung axis. The aim of this study was to investigate the effect of Lactobacillus reuteri supplementation on pulmonary function test, respiratory symptoms and growth in CF patients. METHODS A randomized, placebo-controlled clinical trial was carried out on 40 children with CF aged from 6 to 20 years. Participants were designated to receive either L. reuteri or placebo daily for 4 months. Pulmonary function tests, weight, height and body mass index (BMI) z-scores were measured pre and post treatment. RESULTS The median baseline BMI of the patients was 16.28 kg m-2. A significant change in the probiotic group's BMI z-score after the study period was observed (P = 0.034) but not for weight and height z-scores (P > 0.05). After treatment, Pseudomonas aeruginosa grew in sputum cultures of seven in the placebo and one patient in the intervention group (P = 0.03) while at baseline it grew in the sputum of four patients in each group. There was no significant difference in forced expiratory volume in the first second, forced expiratory flow at 25-75% or forced vital capacity change between the two groups after the treatment period (P > 0.05). Additionally, no significant differences were found in pulmonary exacerbations, hospitalization frequencies or COVID-19 infection between the two groups during the study (P > 0.05). CONCLUSION The results suggest that L. reuteri supplementation may impact the growth of severely malnourished CF patients. Furthermore, it may be concluded that this strain might reduce P. aeruginosa in the sputum culture of CF patients. © 2024 Society of Chemical Industry.
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Affiliation(s)
- Seyed Ahmad Tabatabaii
- Department of Pediatric Pulmonology, Mofid Children's Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Ghamartaj Khanbabaee
- Department of Pediatric Pulmonology, Mofid Children's Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Saeed Sadr
- Department of Pediatric Pulmonology, Mofid Children's Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Nazanin Farahbakhsh
- Department of Pediatric Pulmonology, Mofid Children's Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Seyedeh Zalfa Modarresi
- Department of Pediatric Pulmonology, Mofid Children's Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran
- Children Growth Disorder Research Center, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Matin Pourghasem
- Department of Pediatric Pulmonology, Mofid Children's Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mahmoud Hajipour
- Pediatric Gastroenterology, Hepatology and Nutrition Research Center, Research Institute for Children's Health, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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Cheng M, Jia X, Ren L, Chen S, Wang W, Wang J, Cong B. Region-Specific Effects of Metformin on Gut Microbiome and Metabolome in High-Fat Diet-Induced Type 2 Diabetes Mouse Model. Int J Mol Sci 2024; 25:7250. [PMID: 39000356 PMCID: PMC11241422 DOI: 10.3390/ijms25137250] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2024] [Revised: 06/26/2024] [Accepted: 06/26/2024] [Indexed: 07/16/2024] Open
Abstract
The glucose-lowering drug metformin alters the composition of the gut microbiome in patients with type 2 diabetes mellitus (T2DM) and other diseases. Nevertheless, most studies on the effects of this drug have relied on fecal samples, which provide limited insights into its local effects on different regions of the gut. Using a high-fat diet (HFD)-induced mouse model of T2DM, we characterize the spatial variability of the gut microbiome and associated metabolome in response to metformin treatment. Four parts of the gut as well as the feces were analyzed using full-length sequencing of 16S rRNA genes and targeted metabolomic analyses, thus providing insights into the composition of the microbiome and associated metabolome. We found significant differences in the gut microbiome and metabolome in each gut region, with the most pronounced effects on the microbiomes of the cecum, colon, and feces, with a significant increase in a variety of species belonging to Akkermansiaceae, Lactobacillaceae, Tannerellaceae, and Erysipelotrichaceae. Metabolomics analysis showed that metformin had the most pronounced effect on microbiome-derived metabolites in the cecum and colon, with several metabolites, such as carbohydrates, fatty acids, and benzenoids, having elevated levels in the colon; however, most of the metabolites were reduced in the cecum. Thus, a wide range of beneficial metabolites derived from the microbiome after metformin treatment were produced mainly in the colon. Our study highlights the importance of considering gut regions when understanding the effects of metformin on the gut microbiome and metabolome.
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Affiliation(s)
- Meihui Cheng
- Research Unit of Digestive Tract Microecosystem Pharmacology and Toxicology, National Institute of Pathogen Biology, Chinese Academy of Medical Sciences & Peking Union Medical College, Shijiazhuang 050017, China
- College of Forensic Medicine, Hebei Key Laboratory of Forensic Medicine, Collaborative Innovation Center of Forensic Medical Molecular Identification, Hebei Medical University, Shijiazhuang 050017, China
- National Health Commission Key Laboratory of Systems Biology of Pathogens and Christophe Mérieux Laboratory, National Institute of Pathogen Biology, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 102629, China
| | - Xianxian Jia
- Research Unit of Digestive Tract Microecosystem Pharmacology and Toxicology, National Institute of Pathogen Biology, Chinese Academy of Medical Sciences & Peking Union Medical College, Shijiazhuang 050017, China
- College of Forensic Medicine, Hebei Key Laboratory of Forensic Medicine, Collaborative Innovation Center of Forensic Medical Molecular Identification, Hebei Medical University, Shijiazhuang 050017, China
- Department of Pathogen Biology, Institute of basic Medicine, Hebei Medical University, Shijiazhuang 050017, China
| | - Lili Ren
- Research Unit of Digestive Tract Microecosystem Pharmacology and Toxicology, National Institute of Pathogen Biology, Chinese Academy of Medical Sciences & Peking Union Medical College, Shijiazhuang 050017, China
- National Health Commission Key Laboratory of Systems Biology of Pathogens and Christophe Mérieux Laboratory, National Institute of Pathogen Biology, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 102629, China
| | - Siqian Chen
- Research Unit of Digestive Tract Microecosystem Pharmacology and Toxicology, National Institute of Pathogen Biology, Chinese Academy of Medical Sciences & Peking Union Medical College, Shijiazhuang 050017, China
- College of Forensic Medicine, Hebei Key Laboratory of Forensic Medicine, Collaborative Innovation Center of Forensic Medical Molecular Identification, Hebei Medical University, Shijiazhuang 050017, China
- National Health Commission Key Laboratory of Systems Biology of Pathogens and Christophe Mérieux Laboratory, National Institute of Pathogen Biology, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 102629, China
| | - Wei Wang
- Research Unit of Digestive Tract Microecosystem Pharmacology and Toxicology, National Institute of Pathogen Biology, Chinese Academy of Medical Sciences & Peking Union Medical College, Shijiazhuang 050017, China
- College of Forensic Medicine, Hebei Key Laboratory of Forensic Medicine, Collaborative Innovation Center of Forensic Medical Molecular Identification, Hebei Medical University, Shijiazhuang 050017, China
| | - Jianwei Wang
- Research Unit of Digestive Tract Microecosystem Pharmacology and Toxicology, National Institute of Pathogen Biology, Chinese Academy of Medical Sciences & Peking Union Medical College, Shijiazhuang 050017, China
- National Health Commission Key Laboratory of Systems Biology of Pathogens and Christophe Mérieux Laboratory, National Institute of Pathogen Biology, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 102629, China
| | - Bin Cong
- Research Unit of Digestive Tract Microecosystem Pharmacology and Toxicology, National Institute of Pathogen Biology, Chinese Academy of Medical Sciences & Peking Union Medical College, Shijiazhuang 050017, China
- College of Forensic Medicine, Hebei Key Laboratory of Forensic Medicine, Collaborative Innovation Center of Forensic Medical Molecular Identification, Hebei Medical University, Shijiazhuang 050017, China
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16
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Zhang J, Zhang C, Yu L, Tian F, Chen W, Zhai Q. Analysis of the key genes of Lactobacillus reuteri strains involved in the protection against alcohol-induced intestinal barrier damage. Food Funct 2024; 15:6629-6641. [PMID: 38812427 DOI: 10.1039/d4fo01796j] [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: 05/31/2024]
Abstract
Gastrointestinal inflammation and intestinal barrier function have important effects on human health. Alcohol, an important foodborne hazard factor, damages the intestinal barrier, increasing the risk of disease. Lactobacillus reuteri strains have been reported to reduce gastrointestinal inflammation and strengthen the intestinal barrier. In this study, we selected three anti-inflammatory L. reuteri strains to evaluate their role in the protection of the intestinal barrier and their immunomodulatory activity in a mouse model of gradient alcohol intake. Among the three strains tested (FSCDJY33M3, FGSZY33L6, and FCQHCL8L6), L. reuteri FSCDJY33M3 was found to protect the intestinal barrier most effectively, possibly due to its ability to reduce the expression of interleukin (IL)-1β, IL-6, and tumor necrosis factor-alpha (TNF-α) and increase the expression of tight junction proteins (occludin, claudin-3). Genomic analysis suggested that the protective effects of L. reuteri FSCDJY33M3 may be related to functional genes and glycoside hydrolases associated with energy production and conversion, amino acid transport and metabolism, carbohydrate transport and metabolism, and DNA replication, recombination, and repair. These genes include COG2856, COG1804, COG2071, and COG1061, which encode adenine deaminase, acyl-CoA transferases, glutamine amidotransferase, RNA helicase, and glycoside hydrolases, including GH13_20, GH53, and GH70. Our results identified functional genes that may be related to protection against alcohol-induced intestinal barrier damage, which might be useful for screening lactic acid bacterial strains that can protect the intestinal barrier.
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Affiliation(s)
- Jiayi Zhang
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi 214122, China.
- School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Chengcheng Zhang
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi 214122, China.
- School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, China
- National Engineering Research Center for Functional Food, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Leilei Yu
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi 214122, China.
- School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, China
- National Engineering Research Center for Functional Food, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Fengwei Tian
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi 214122, China.
- School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, China
- National Engineering Research Center for Functional Food, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Wei Chen
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi 214122, China.
- School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, China
- National Engineering Research Center for Functional Food, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Qixiao Zhai
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi 214122, China.
- School of Food Science and 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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Su ZY, Liao JA, Lin CT, Wei GJ, Tung YC. Citrus depressa peel extract acts as a prebiotic to reduce lipid accumulation and modulate gut microbiota in obese mice. J Food Drug Anal 2024; 32:213-226. [PMID: 38934690 PMCID: PMC11210465 DOI: 10.38212/2224-6614.3504] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Accepted: 04/01/2024] [Indexed: 06/28/2024] Open
Abstract
Citrus peels contain abundant polyphenols, particularly flavonoids, and have been shown to exert lipid accumulation decreasing ability. In this study, Citrus depressa peel applied to oven drying and extracted with ethanol extract as CDEE to analyze its flavonoids compositions and investigated its effects on a high-fat diet (HFD)-induced obese mice model. CDEE contained several flavonoids such as hesperidin, sinesentin, nobiletin, tangeretin, 5-demethylnobiletin, and 5-demethyltangeretin. The mice fed an HFD, and administration of 2% CDEE to could decrease weight gain, abdominal fat weight, inguinal fat weight, and the adipocyte size, and CDEE also reduced serum total cholesterol (TCHO), triacylglycerol (TG) compared with mice fed only on HFD. CDEE hindered lipid accumulation through a decreased fatty acid synthase (FAS) protein expression via upregulation of the protein expression of AMP-activated protein kinase α (AMPKα). Moreover, CDEE modulated gut microbiota that altered by HFD through an increased abundance of Lactobacillus reuteri compared with the HFD group. The results demonstrated that CDEE helps decrease lipid accumulation through the AMPK pathway, which also indicates a prebiotic-like effect on gut microbiota.
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Affiliation(s)
- Zheng-Yuan Su
- Department of Bioscience Technology, Chung Yuan Christian University, Taoyuan City, 320314,
Taiwan
| | - Jie-An Liao
- Department of Bioscience Technology, Chung Yuan Christian University, Taoyuan City, 320314,
Taiwan
| | - Ching-Ting Lin
- Department of Bioscience Technology, Chung Yuan Christian University, Taoyuan City, 320314,
Taiwan
| | - Guor-Jien Wei
- Institute of Food Safety and Health Risk Assessment, National Yang Ming Chiao Tung University, Taipei, 112304,
Taiwan
| | - Yen-Chen Tung
- Department of Food Science, National Ilan University, Yilan County, 260007,
Taiwan
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18
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Moturi S, Kommalapati LK, Metta M, Chappidi VS, Jatavathu S. Probiotic potential of autochthonous Lactobacillus species from buffalo calves in controlling multidrug resistant Escherichia coli. VETERINARY RESEARCH FORUM : AN INTERNATIONAL QUARTERLY JOURNAL 2024; 15:275-282. [PMID: 39035478 PMCID: PMC11260225 DOI: 10.30466/vrf.2024.2012559.4024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/29/2024] [Accepted: 01/08/2024] [Indexed: 07/23/2024]
Abstract
The aim of this study was to investigate the probiotic potential of autochthonous Lactobacillus species isolated from buffalo calves against multidrug-resistant Escherichia coli. A total of 252 rectal swabs were collected from healthy neonatal buffalo calves under 30 days old from six districts of Andhra Pradesh, India in a completely randomized design from August 2019 to August 2021, of which 190 Lactobacillus strains were isolated based on cultural, morphological, biochemical and molecular tests. Out of 190 isolates, 57 showed high levels of auto-aggregation (> 80.00%) and hydrophobicity (> 60.00%) and 51 of the 57 isolates had a zone of inhibition greater than 15.00 mm in diameter against multidrug-resistant E. coli in an Agar well diffusion assay. Among the 51 isolates, 36 were found to be acid and bile tolerant and showed varying levels of sensitivity to antibiotics such as erythromycin, clindamycin, tetracycline, chloramphenicol, and ampicillin. Among the 36 isolates, Limosilactobacillus reuteri 178, L. reuteri 209, L. fermentum 182, L. fermentum 211, and Lactiplanti-bacillus plantarum 34 were non-hemolytic, and none of the isolates were able to hydrolyse gelatine. Therefore, these five autochthonous Lactobacillus species may be used in probiotic or synbiotic formulations against multidrug resistant E. coli in buffalo calves.
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Affiliation(s)
- Srivani Moturi
- Department of Veterinary Microbiology, N.T.R College of Veterinary Science, Sri Venkateswara Veterinary University, Vijayawada, India;
| | - Lakshmi Kavitha Kommalapati
- Department of Veterinary Microbiology, College of Veterinary Science, Sri Venkateswara Veterinary University, Tirupati, India;
| | - Muralidhar Metta
- Department of Animal Genetics and Breeding, College of Veterinary Science, Sri Venkateswara Veterinary University, Vizianagaram, India;
| | - Venkata Seshaiah Chappidi
- Livestock Farm Complex, N.T.R College of Veterinary Science, Sri Venkateswara Veterinary University, Vijayawada, India;
| | - Srilakshmi Jatavathu
- Junior Research Fellow, Department of Veterinary Microbiology, N.T.R College of Veterinary Science, Sri Venkateswara Veterinary University, Vijayawada, India.
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19
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Teffera M, Veith AC, Ronnekleiv-Kelly S, Bradfield CA, Nikodemova M, Tussing-Humphreys L, Malecki K. Diverse mechanisms by which chemical pollutant exposure alters gut microbiota metabolism and inflammation. ENVIRONMENT INTERNATIONAL 2024; 190:108805. [PMID: 38901183 DOI: 10.1016/j.envint.2024.108805] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/11/2023] [Revised: 05/28/2024] [Accepted: 06/07/2024] [Indexed: 06/22/2024]
Abstract
The human gut microbiome, the host, and the environment are inextricably linked across the life course with significant health impacts. Consisting of trillions of bacteria, fungi, viruses, and other micro-organisms, microbiota living within our gut are particularly dynamic and responsible for digestion and metabolism of diverse classes of ingested chemical pollutants. Exposure to chemical pollutants not only in early life but throughout growth and into adulthood can alter human hosts' ability to absorb and metabolize xenobiotics, nutrients, and other components critical to health and longevity. Inflammation is a common mechanism underlying multiple environmentally related chronic conditions, including cardiovascular disease, multiple cancer types, and mental health. While growing research supports complex interactions between pollutants and the gut microbiome, significant gaps exist. Few reviews provide descriptions of the complex mechanisms by which chemical pollutants interact with the host microbiome through either direct or indirect pathways to alter disease risk, with a particular focus on inflammatory pathways. This review focuses on examples of several classes of pollutants commonly ingested by humans, including (i) heavy metals, (ii) persistent organic pollutants (POPs), and (iii) nitrates. Digestive enzymes and gut microbes are the first line of absorption and metabolism of these chemicals, and gut microbes have been shown to alter compounds from a less to more toxic state influencing subsequent distribution and excretion. In addition, chemical pollutants may interact with or alter the selection of more harmful and less commensal microbiota, leading to gut dysbiosis, and changes in receptor-mediated signaling pathways that alter the integrity and function of the gut intestinal tract. Arsenic, cadmium, and lead (heavy metals), influence the microbiome directly by altering different classes of bacteria, and subsequently driving inflammation through metabolite production and different signaling pathways (LPS/TLR4 or proteoglycan/TLR2 pathways). POPs can alter gut microbial composition either directly or indirectly depending on their ability to activate key signaling pathways within the intestine (e.g., PCB-126 and AHR). Nitrates and nitrites' effect on the gut and host may depend on their ability to be transformed to secondary and tertiary metabolites by gut bacteria. Future research should continue to support foundational research both in vitro, in vivo, and longitudinal population-based research to better identify opportunities for prevention, gain additional mechanistic insights into the complex interactions between environmental pollutants and the microbiome and support additional translational science.
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Affiliation(s)
- Menna Teffera
- Molecular and Environmental Toxicology, University of Wisconsin-Madison, Madison, WI, US; Biotechnology Center, University of Wisconsin-Madison, Madison, WI, US.
| | - Alex C Veith
- Department of Oncology, University of Wisconsin-Madison, Madison, WI, US.
| | - Sean Ronnekleiv-Kelly
- Molecular and Environmental Toxicology, University of Wisconsin-Madison, Madison, WI, US; Biotechnology Center, University of Wisconsin-Madison, Madison, WI, US; Department of Surgery, University of Wisconsin-Madison, Madison, WI, US.
| | - Christopher A Bradfield
- Molecular and Environmental Toxicology, University of Wisconsin-Madison, Madison, WI, US; Department of Surgery, University of Wisconsin-Madison, Madison, WI, US; Department of Oncology, University of Wisconsin-Madison, Madison, WI, US.
| | - Maria Nikodemova
- College of Public Health and Health Professionals, University of Florida, FL, US.
| | - Lisa Tussing-Humphreys
- Department of Kinesiology and Nutrition, University of Illinois-Chicago, Chicago, IL, US; University of Illinois Cancer Center, University of Illinois-Chicago, Chicago, IL, US.
| | - Kristen Malecki
- Molecular and Environmental Toxicology, University of Wisconsin-Madison, Madison, WI, US; Biotechnology Center, University of Wisconsin-Madison, Madison, WI, US; University of Illinois Cancer Center, University of Illinois-Chicago, Chicago, IL, US; Environmental Occupational Health Sciences, University of Illinois-Chicago, Chicago, IL, US.
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20
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Li M, Wang X, Dong X, Teng G, Dai Y, Wang W. Lactobacillus reuteri compared with placebo as an adjuvant in Helicobacter pylori eradication therapy: a meta-analysis of randomized controlled trials. Therap Adv Gastroenterol 2024; 17:17562848241258021. [PMID: 38846173 PMCID: PMC11155330 DOI: 10.1177/17562848241258021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/02/2024] [Accepted: 05/08/2024] [Indexed: 06/09/2024] Open
Abstract
Background Given the growing problem of antibiotic resistance, it is crucial to improve Helicobacter pylori (H. pylori) treatment interventions or provide adjunctive therapy. The objective of this meta-analysis was to evaluate whether Lactobacillus reuteri (L. reuteri) could improve H. pylori eradication rate, reduce the incidence of adverse events (AEs), and alleviate gastrointestinal symptoms. Design A meta-analysis of randomized controlled trials (RCTs) comparing L. reuteri supplementation therapy with placebo was conducted. Sources and methods We retrieved relevant studies from PubMed, Embase, and the Cochrane Library. The primary outcome was H. pylori eradication rate, and the scores on the Gastrointestinal Symptom Rating Scale and AEs were secondary outcomes. Results Eight RCTs including 1087 patients were included in this analysis. The L. reuteri supplementation group showed significantly higher H. pylori eradication rates in both intention-to-treat (ITT) and per-protocol (PP) analysis [ITT: 80.0% versus 72.6%; p = 0.005, relative risk (RR): 1.10; 95% confidence interval (CI): 1.03-1.17; number needed to treat (NNT) = 14; PP: 81.8% versus 75.0%; p = 0.006, RR: 1.09; 95% CI: 1.03-1.16; NNT = 15]. Patients treated with L. reuteri showed greater improvements in gastrointestinal symptoms (pooled mean difference: -2.43, 95% CI: -4.56 to -0.29, p = 0.03). The incidence of AEs was significantly reduced in the L. reuteri supplementation group based on ITT and PP analysis (ITT: p < 0.00001, RR: 0.72, 95% CI: 0.67-0.78; PP: p < 0.00001, RR: 0.70, 95% CI: 0.65-0.77). Conclusion The present meta-analysis demonstrated that supplementation with L. reuteri was beneficial for improving the eradication rate of H. pylori, reducing the overall incidence of side effects, and relieving gastrointestinal symptoms in patients during treatment. The findings provide new insights into clinical decision-making. Trial registration PROSPERO CRD42023424052.
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Affiliation(s)
- Meng Li
- Department of Gastroenterology, Peking University First Hospital, Beijing, China
| | - Xiaolei Wang
- Department of Gastroenterology, Peking University First Hospital, Beijing, China
| | - Xinhong Dong
- Department of Gastroenterology, Peking University First Hospital, Beijing, China
| | - Guigen Teng
- Department of Gastroenterology, Peking University First Hospital, Beijing, China
| | - Yun Dai
- Department of Gastroenterology, Peking University First Hospital, Beijing, China
| | - Weihong Wang
- Department of Gastroenterology, Peking University First Hospital, No. 8 Xishiku Street, Beijing 100034, China
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21
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Gregori G, Pivodic A, Magnusson P, Johansson L, Hjertonsson U, Brättemark E, Lorentzon M. Limosilactobacillus reuteri 6475 and Prevention of Early Postmenopausal Bone Loss: A Randomized Clinical Trial. JAMA Netw Open 2024; 7:e2415455. [PMID: 38865129 PMCID: PMC11170297 DOI: 10.1001/jamanetworkopen.2024.15455] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Accepted: 04/05/2024] [Indexed: 06/13/2024] Open
Abstract
Importance Daily supplementation with the probiotic Limosilactobacillus reuteri ATCC PTA 6475 (L reuteri) vs placebo has previously been demonstrated to reduce bone loss in an estrogen deficiency mice model and older women, although the magnitude of the effect was small. We hypothesized that long-term treatment with L reuteri could result in clinically relevant skeletal benefits in postmenopausal osteoporosis. Objective To evaluate whether daily supplementation with L reuteri vs placebo could reduce early postmenopausal bone loss and whether the effects remained or increased over time during 2 years of treatment. Design, Setting, and Participants A double-blind, randomized, placebo-controlled clinical trial was conducted between December 4, 2019, and October 6, 2022, at a single center in Gothenburg, southwestern Sweden. Participants were recruited by online advertisements, and letters were sent to 10 062 women aged 50 to 60 years. Responding women (n = 752) underwent telephone screening, resulting in 292 women being invited to a screening visit. Of those who were screened, 239 women met all inclusion criteria and had no exclusion criteria. Interventions Capsules with L reuteri in 2 doses, 5 × 108 (low dose) or 5 × 109 (high dose) colony-forming units, taken twice daily or placebo were administered. All capsules also included cholecalciferol, 200 IU. Main Outcomes and Measures The primary outcome was the relative change in tibia total volumetric bone mineral density (vBMD) over 2 years. Secondary outcomes included relative change in areal BMD of the lumbar spine and total hip, bone turnover markers C-terminal telopeptide cross-links of collagen type I and type I procollagen intact N-terminal propeptide, as well as tibia trabecular bone volume fraction and cortical vBMD. Both intention-to-treat and per-protocol analyses were conducted. Results A total of 239 postmenopausal women (median age, 55 [IQR, 53-56] years) were included. Tibia vBMD (primary outcome), hip and spine vBMD, and tibia cortical area and BMD decreased significantly in all groups, with no group-to-group differences (percent change tibia vBMD high dose vs placebo least-squares means, -0.08 [95 CI, -0.85 to 0.69] and low dose vs placebo least-squares means, -0.22 [95% CI, -0.99 to 0.55]). There were no significant treatment effects on any other predefined outcomes. A prespecified sensitivity analysis found a significant interaction between body mass index (BMI) and treatment effect at 2 years. No significant adverse effects were observed. Conclusions and Relevance In this randomized clinical trial of 239 early postmenopausal women, supplementation with L reuteri had no effect on bone loss or bone turnover over 2 years. The observed interaction between BMI and treatment effect warrants further investigation. Trial Registration ClinicalTrials.gov Identifier: NCT04169789.
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Affiliation(s)
- Giulia Gregori
- Sahlgrenska Osteoporosis Centre, Department of Internal Medicine and Clinical Nutrition, Institute of Medicine, University of Gothenburg, Gothenburg, Sweden
| | - Aldina Pivodic
- APNC, Gothenburg, Sweden
- Department of Ophthalmology, Sahlgrenska University Hospital, the Västra Götaland Region, Mölndal, Sweden
| | - Per Magnusson
- Department of Clinical Chemistry, and Department of Biomedical and Clinical Sciences, Linköping University, Linköping, Sweden
| | - Lisa Johansson
- Sahlgrenska Osteoporosis Centre, Department of Internal Medicine and Clinical Nutrition, Institute of Medicine, University of Gothenburg, Gothenburg, Sweden
- The Västra Götaland Region, Department of Orthopedics, Sahlgrenska University Hospital, Mölndal, Sweden
| | - Ulrika Hjertonsson
- Sahlgrenska Osteoporosis Centre, Department of Internal Medicine and Clinical Nutrition, Institute of Medicine, University of Gothenburg, Gothenburg, Sweden
| | - Emma Brättemark
- Sahlgrenska Osteoporosis Centre, Department of Internal Medicine and Clinical Nutrition, Institute of Medicine, University of Gothenburg, Gothenburg, Sweden
| | - Mattias Lorentzon
- Sahlgrenska Osteoporosis Centre, Department of Internal Medicine and Clinical Nutrition, Institute of Medicine, University of Gothenburg, Gothenburg, Sweden
- Geriatric Medicine, Sahlgrenska University Hospital, the Västra Götaland Region, Mölndal, Sweden
- Mary McKillop Institute for Health Research, Australian Catholic University, Melbourne, Australia
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22
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Cheng J, Kolba N, Tako E. The effect of dietary zinc and zinc physiological status on the composition of the gut microbiome in vivo. Crit Rev Food Sci Nutr 2024; 64:6432-6451. [PMID: 36688291 DOI: 10.1080/10408398.2023.2169857] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
Zinc serves critical catalytic, regulatory, and structural roles. Hosts and their resident gut microbiota both require zinc, leading to competition, where a balance must be maintained. This systematic review examined evidence on dietary zinc and physiological status (zinc deficiency or high zinc/zinc overload) effects on gut microbiota. This review was conducted according to PRISMA (Preferred Reporting Items for Systematic reviews and Meta-Analyses) guidelines and registered in PROSPERO (CRD42021250566). PubMed, Web of Science, and Scopus databases were searched for in vivo (animal) studies, resulting in eight selected studies. Study quality limitations were evaluated using the SYRCLE risk of bias tool and according to ARRIVE guidelines. The results demonstrated that zinc deficiency led to inconsistent changes in α-diversity and short-chain fatty acid production but led to alterations in bacterial taxa with functions in carbohydrate metabolism, glycan metabolism, and intestinal mucin degradation. High dietary zinc/zinc overload generally resulted in either unchanged or decreased α-diversity, decreased short-chain fatty acid production, and increased bacterial metal resistance and antibiotic resistance genes. Additional studies in human and animal models are needed to further understand zinc physiological status effects on the intestinal microbiome and clarify the applicability of utilizing the gut microbiome as a potential zinc status biomarker.
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Affiliation(s)
- Jacquelyn Cheng
- Department of Food Science, Cornell University, Ithaca, New York, USA
| | - Nikolai Kolba
- Department of Food Science, Cornell University, Ithaca, New York, USA
| | - Elad Tako
- Department of Food Science, Cornell University, Ithaca, New York, USA
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23
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Sutar AA, Dashpute RS, Shinde YD, Mukherjee S, Chowdhury C. A Systemic Review on Fitness and Survival of Salmonella in Dynamic Environment and Conceivable Ways of Its Mitigation. Indian J Microbiol 2024; 64:267-286. [PMID: 39011015 PMCID: PMC11246371 DOI: 10.1007/s12088-023-01176-4] [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: 06/01/2023] [Accepted: 12/05/2023] [Indexed: 07/17/2024] Open
Abstract
Gastroenteritis caused by non-typhoidal Salmonella still prevails resulting in several recent outbreaks affecting many people worldwide. The presence of invasive non-typhoidal Salmonella is exemplified by several characteristic symptoms and their severity relies on prominent risk factors. The persistence of this pathogen can be attributed to its broad host range, complex pathogenicity and virulence and adeptness in survival under challenging conditions inside the host. Moreover, a peculiar aid of the ever-changing climatic conditions grants this organism with remarkable potential to survive within the environment. Abusive use of antibiotics for the treatment of gastroenteritis has led to the emergence of multiple drug resistance, making the infections difficult to treat. This review emphasizes the importance of early detection of Salmonella, along with strategies for accomplishing it, as well as exploring alternative treatment approaches. The exceptional characteristics exhibited by Salmonella, like strategies of infection, persistence, and survival parallelly with multiple drug resistance, make this pathogen a prominent concern to human health.
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Affiliation(s)
- Ajit A Sutar
- Biochemical Sciences Division, CSIR- National Chemical Laboratory, Dr. Homi Bhabha Road, Pune, MH 411008 India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002 India
| | - Rohit S Dashpute
- Biochemical Sciences Division, CSIR- National Chemical Laboratory, Dr. Homi Bhabha Road, Pune, MH 411008 India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002 India
| | - Yashodhara D Shinde
- Biochemical Sciences Division, CSIR- National Chemical Laboratory, Dr. Homi Bhabha Road, Pune, MH 411008 India
| | - Srestha Mukherjee
- Biochemical Sciences Division, CSIR- National Chemical Laboratory, Dr. Homi Bhabha Road, Pune, MH 411008 India
| | - Chiranjit Chowdhury
- Biochemical Sciences Division, CSIR- National Chemical Laboratory, Dr. Homi Bhabha Road, Pune, MH 411008 India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002 India
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24
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Zou J, Luan H, Xi P, Xue J, Fan J, Zhong X, Zhou X, Song X, Zhao X, Zou Y, Li L, Jia R, Fu Y, Liu Z, Yin Z. Gallnut tannic acid alleviates gut damage induced by Salmonella pullorum in broilers by enhancing barrier function and modulating microbiota. Front Vet Sci 2024; 11:1382288. [PMID: 38863452 PMCID: PMC11166010 DOI: 10.3389/fvets.2024.1382288] [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: 02/05/2024] [Accepted: 04/30/2024] [Indexed: 06/13/2024] Open
Abstract
Pullorum disease (PD) is a bacterial infection caused by Salmonella pullorum (S. pullorum) that affects poultry. It is highly infectious and often fatal. Antibiotics are currently the mainstay of prophylactic and therapeutic treatments for PD, but their use can lead to the development of resistance in pathogenic bacteria and disruption of the host's intestinal flora. We added neomycin sulfate and different doses of tannic acid (TA) to the drinking water of chicks at 3 days of age and infected them with PD by intraperitoneal injection of S. pullorum at 9 days of age. We analyzed intestinal histopathological changes and the expression of immune-related genes and proteins by using the plate smear method, histological staining, real-time fluorescence quantitative PCR, ELISA kits, and 16S rRNA Analysis of intestinal flora. The results demonstrate that S. pullorum induces alterations in the immune status and impairs the functionality of the liver and intestinal barrier. We found that tannic acid significantly ameliorated S. pullorum-induced liver and intestinal damage, protected the intestinal physical and chemical barriers, restored the intestinal immune barrier function, and regulated the intestinal flora. Our results showed that TA has good anti-diarrhoeal, growth-promoting, immune-regulating, intestinal barrier-protecting and intestinal flora-balancing effects, and the best effect was achieved at an additive dose of 0.2%.
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Affiliation(s)
- Junjie Zou
- Natural Medicine Research Center, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
| | - Hongliang Luan
- Natural Medicine Research Center, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
- Qilu Animal Health Products Co., Ltd., Jinan, China
| | - Pengyuan Xi
- Natural Medicine Research Center, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
| | - Junshu Xue
- Natural Medicine Research Center, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
| | - Jiahao Fan
- Natural Medicine Research Center, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
| | - Xinyi Zhong
- Natural Medicine Research Center, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
| | - Xun Zhou
- Natural Medicine Research Center, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
| | - Xu Song
- Natural Medicine Research Center, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
| | - Xinghong Zhao
- Natural Medicine Research Center, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
| | - Yuanfeng Zou
- Natural Medicine Research Center, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
| | - Lixia Li
- Natural Medicine Research Center, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
| | - Renyong Jia
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, Sichuan Agricultural University, Chengdu, China
| | - Yuping Fu
- Natural Medicine Research Center, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
| | - Zhongxiu Liu
- Chengdu QianKun Veterinary Pharmaceutical Co., Ltd, Chengdu, China
| | - Zhongqiong Yin
- Natural Medicine Research Center, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
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Xue P, Xue M, Luo Y, Tang Q, Wang F, Sun R, Song Y, Chao Z, Fang M. Colonic Microbiota Improves Fiber Digestion Ability and Enhances Absorption of Short-Chain Fatty Acids in Local Pigs of Hainan. Microorganisms 2024; 12:1033. [PMID: 38930415 PMCID: PMC11205767 DOI: 10.3390/microorganisms12061033] [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: 03/30/2024] [Revised: 05/05/2024] [Accepted: 05/16/2024] [Indexed: 06/28/2024] Open
Abstract
Compared to commercial breeds, Chinese local pig breeds have a greater ability to digest dietary fiber, which may be due to differences in intestinal microbiota. In this study, we fed Ding'an and DLY pigs high and low levels of dietary fiber, respectively, to investigate factors contributing to high dietary fiber adaption in Ding'an pigs. Twelve Ding'an pigs and DLY pigs were randomly divided into a 2 (diet) × 2 (breed) factorial experiment (n = 3). Compared with commercial pigs, Ding'an pigs have a stronger ability to digest dietary fiber. Prevotella was more prevalent in Ding'an pigs than in DLY pigs, which may be an important reason for the stronger ability of fiber degradation in Ding'an pigs. When the effects of feed and breed factors are considered, differences in abundance of 31 species and 14 species, respectively, may result in a greater ability of fiber degradation in Ding'an pigs. Among them, Prevotella. sp. CAG:520 may be a newly discovered bacterium related to fiber degradation, which positively correlated with many fiber-degrading bacteria (r > 0.7). We also found that the concentration of plant metabolites with anti-inflammatory and antioxidant effects was higher in the colonic chyme of Ding'an pigs after increasing the fiber content, which resulted in the downregulated expression of inflammatory factors in colonic mucosa. Spearman's correlation coefficient revealed a strong correlation between microbiota and the apparent digestibility of dietary fiber (r > 0.7). The mRNA expressions of SLC16A1, PYY, and GCG were significantly increased in the colonic mucosa of Ding'an pigs fed on high-fiber diets, which indicates that Ding'an pigs have an enhanced absorption of SCFAs. Our results suggested that an appropriate increase in dietary fiber content can reduce the inflammatory response and improve feed efficiency in Ding'an pigs, and differences in the intestinal microbial composition may be an important reason for the difference in the fiber degradation capacity between the two breeds of pigs.
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Affiliation(s)
- Pengxiang Xue
- National Engineering Laboratory for Animal Breeding, MOA Laboratory of Animal Genetics and Breeding, Department of Animal Genetics and Breeding, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China; (P.X.); (M.X.); (Y.L.); (Q.T.)
| | - Mingming Xue
- National Engineering Laboratory for Animal Breeding, MOA Laboratory of Animal Genetics and Breeding, Department of Animal Genetics and Breeding, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China; (P.X.); (M.X.); (Y.L.); (Q.T.)
| | - Yabiao Luo
- National Engineering Laboratory for Animal Breeding, MOA Laboratory of Animal Genetics and Breeding, Department of Animal Genetics and Breeding, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China; (P.X.); (M.X.); (Y.L.); (Q.T.)
| | - Qiguo Tang
- National Engineering Laboratory for Animal Breeding, MOA Laboratory of Animal Genetics and Breeding, Department of Animal Genetics and Breeding, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China; (P.X.); (M.X.); (Y.L.); (Q.T.)
| | - Feng Wang
- Institute of Animal Science and Veterinary Medicine, Hainan Academy of Agricultural Science, Haikou 571101, China; (F.W.); (R.S.); (Z.C.)
| | - Ruiping Sun
- Institute of Animal Science and Veterinary Medicine, Hainan Academy of Agricultural Science, Haikou 571101, China; (F.W.); (R.S.); (Z.C.)
| | - Yanxia Song
- Sanya Institute, China Agricultural University, Sanya 572024, China;
| | - Zhe Chao
- Institute of Animal Science and Veterinary Medicine, Hainan Academy of Agricultural Science, Haikou 571101, China; (F.W.); (R.S.); (Z.C.)
| | - Meiying Fang
- National Engineering Laboratory for Animal Breeding, MOA Laboratory of Animal Genetics and Breeding, Department of Animal Genetics and Breeding, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China; (P.X.); (M.X.); (Y.L.); (Q.T.)
- Sanya Institute, China Agricultural University, Sanya 572024, China;
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Janson TM, Ramenzoni LL, Hatz CR, Schlagenhauf U, Attin T, Schmidlin PR. Limosilactobacillus reuteri supernatant attenuates inflammatory responses of human gingival fibroblasts to LPS but not to elevated glucose levels. J Periodontal Res 2024. [PMID: 38764133 DOI: 10.1111/jre.13290] [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: 11/07/2023] [Revised: 05/04/2024] [Accepted: 05/05/2024] [Indexed: 05/21/2024]
Abstract
AIM We investigated the in vitro effect of Limosilactobacillus reuteri DSM 17938 supernatant on the inflammatory response of human gingival fibroblasts (HGF) challenged by lipopolysaccharide (LPS) or elevated glucose levels. METHODS HGF were exposed to LPS (1 μg/mL), glucose (5, 12 mM or 25 mM), and dilutions of supernatant prepared from L. reuteri DSM 17938 (0.5 × 107, 1.0 × 107, 2.5 × 107, and 5.0 × 107 CFU/mL). After 24 h cell viability and levels of cytokines (IL-1β, IL-6 and IL-8) and TLR-2 were determined. RESULTS None of the tested L. reuteri (DSM 17938) supernatant concentrations reduced the viability of HGF. Supernatant concentrations (2.5 × 107 and 5 × 107 CFU/mL) significantly (p < .05) decreased the production of IL-1β, IL-6, IL-8, and TLR-2 in the presence of LPS. In contrast, inflammatory markers were not reduced by L. reuteri supernatant in the presence of glucose. Glucose concentrations of 12 mM and 24 mM still lead to an elevated production of the investigated biochemical mediators. CONCLUSION While L. reuteri (DSM 17938) supernatant attenuates the inflammatory response of HGF to LPS in a dose-dependent manner, elevated glucose levels suppress this action. These in vitro results support the overall anti-inflammatory efficacy of L. reuteri supplementation in plaque-associated periodontal inflammations.
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Affiliation(s)
- T M Janson
- Division of Periodontology and Peri-implant Diseases, Clinic of Conservative and Preventive Dentistry, Center for Dental Medicine, University of Zurich, Zurich, Switzerland
| | - L L Ramenzoni
- Division of Periodontology and Peri-implant Diseases, Clinic of Conservative and Preventive Dentistry, Center for Dental Medicine, University of Zurich, Zurich, Switzerland
| | - C R Hatz
- Division of Periodontology and Peri-implant Diseases, Clinic of Conservative and Preventive Dentistry, Center for Dental Medicine, University of Zurich, Zurich, Switzerland
| | - U Schlagenhauf
- Division of Periodontology and Peri-implant Diseases, Clinic of Conservative and Preventive Dentistry, Center for Dental Medicine, University of Zurich, Zurich, Switzerland
- Department of Conservative Dentistry and Periodontology, Center for Oral Health, University Hospital Wuerzburg, Wuerzburg, Germany
| | - T Attin
- Division of Periodontology and Peri-implant Diseases, Clinic of Conservative and Preventive Dentistry, Center for Dental Medicine, University of Zurich, Zurich, Switzerland
| | - P R Schmidlin
- Division of Periodontology and Peri-implant Diseases, Clinic of Conservative and Preventive Dentistry, Center for Dental Medicine, University of Zurich, Zurich, Switzerland
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Atter A, Diaz M, Tano-Debrah K, Parry-Hanson Kunadu A, Mayer MJ, Sayavedra L, Misita C, Amoa-Awua W, Narbad A. The predominant lactic acid bacteria and yeasts involved in the spontaneous fermentation of millet during the production of the traditional porridge Hausa koko in Ghana. BMC Microbiol 2024; 24:163. [PMID: 38745280 PMCID: PMC11092135 DOI: 10.1186/s12866-024-03317-1] [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: 07/21/2023] [Accepted: 05/03/2024] [Indexed: 05/16/2024] Open
Abstract
Spontaneous fermentation of cereals like millet involves a diverse population of microbes from various sources, including raw materials, processing equipment, fermenting receptacles, and the environment. Here, we present data on the predominant microbial species and their succession at each stage of the Hausa koko production process from five regions of Ghana. The isolates were enumerated using selective media, purified, and phenotypically characterised. The LAB isolates were further characterised by 16S rRNA Sanger sequencing, typed using (GTG)5 repetitive-PCR, and whole genome sequencing, while 28S rRNA Sanger sequencing was performed for yeast identification. The pH of the millet grains ranged from mean values of 6.02-6.53 to 3.51-3.99 in the final product, depending on the processors. The mean LAB and yeast counts increased during fermentation then fell to final counts of log 2.77-3.95 CFU/g for LAB and log 2.10-2.98 CFU/g for yeast in Hausa koko samples. At the various processing stages, the counts of LAB and yeast revealed significant variations (p < 0.0001). The species of LAB identified in this study were Limosilactobacillus pontis, Pediococcus acidilactici, Limosilactobacillus fermentum, Limosilactobacillus reuteri, Pediococcus pentosaceus, Lacticaseibacillus paracasei, Lactiplantibacillus plantarum, Schleiferilactobacillus harbinensis, and Weissella confusa. The yeasts were Saccharomyces cf. cerevisiae/paradoxus, Saccharomyces cerevisiae, Pichia kudriavzevii, Clavispora lusitaniae and Candida tropicalis. The identification and sequencing of these novel isolates and how they change during the fermentation process will pave the way for future controlled fermentation, safer starter cultures, and identifying optimal stages for starter culture addition or nutritional interventions. These LAB and yeast species are linked to many indigenous African fermented foods, potentially acting as probiotics in some cases. This result serves as the basis for further studies into the technological and probiotic potential of these Hausa koko microorganisms.
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Affiliation(s)
- Amy Atter
- Food Microbiology and Mushroom Research Division, CSIR-Food Research Institute, Accra, Ghana.
- Department of Nutrition and Food Science, University of Ghana, Accra, Ghana.
- Food and Health Institute Strategic Programme, Quadram Institute Bioscience, Norwich Research Park, Norwich, UK.
| | - Maria Diaz
- Food and Health Institute Strategic Programme, Quadram Institute Bioscience, Norwich Research Park, Norwich, UK
| | - Kwaku Tano-Debrah
- Department of Nutrition and Food Science, University of Ghana, Accra, Ghana
| | | | - Melinda J Mayer
- Gut Microbes and Health Institute Strategic Programme, Quadram Institute Bioscience, Norwich Research Park, Norwich, UK
| | - Lizbeth Sayavedra
- Gut Microbes and Health Institute Strategic Programme, Quadram Institute Bioscience, Norwich Research Park, Norwich, UK
| | - Collins Misita
- Department of Biochemistry, Cell and Molecular Biology, University of Ghana, Accra, Ghana
| | - Wisdom Amoa-Awua
- Food Microbiology and Mushroom Research Division, CSIR-Food Research Institute, Accra, Ghana
- Department of Agro-Processing Technology and Food Bio-Sciences, CSIR College of Science and Technology, Accra, Ghana
| | - Arjan Narbad
- Food and Health Institute Strategic Programme, Quadram Institute Bioscience, Norwich Research Park, Norwich, UK
- Gut Microbes and Health Institute Strategic Programme, Quadram Institute Bioscience, Norwich Research Park, Norwich, UK
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28
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Xie L, Wu Q, Li K, S Khan MA, Zhang A, Sinha B, Li S, Chang SL, Brody DL, Grinstaff MW, Zhou S, Alterovitz G, Liu P, Wang X. Tryptophan Metabolism in Alzheimer's Disease with the Involvement of Microglia and Astrocyte Crosstalk and Gut-Brain Axis. Aging Dis 2024:AD.2024.0134. [PMID: 38916729 DOI: 10.14336/ad.2024.0134] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2024] [Accepted: 05/03/2024] [Indexed: 06/26/2024] Open
Abstract
Alzheimer's disease (AD) is an age-dependent neurodegenerative disease characterized by extracellular Amyloid Aβ peptide (Aβ) deposition and intracellular Tau protein aggregation. Glia, especially microglia and astrocytes are core participants during the progression of AD and these cells are the mediators of Aβ clearance and degradation. The microbiota-gut-brain axis (MGBA) is a complex interactive network between the gut and brain involved in neurodegeneration. MGBA affects the function of glia in the central nervous system (CNS), and microbial metabolites regulate the communication between astrocytes and microglia; however, whether such communication is part of AD pathophysiology remains unknown. One of the potential links in bilateral gut-brain communication is tryptophan (Trp) metabolism. The microbiota-originated Trp and its metabolites enter the CNS to control microglial activation, and the activated microglia subsequently affect astrocyte functions. The present review highlights the role of MGBA in AD pathology, especially the roles of Trp per se and its metabolism as a part of the gut microbiota and brain communications. We (i) discuss the roles of Trp derivatives in microglia-astrocyte crosstalk from a bioinformatics perspective, (ii) describe the role of glia polarization in the microglia-astrocyte crosstalk and AD pathology, and (iii) summarize the potential of Trp metabolism as a therapeutic target. Finally, we review the role of Trp in AD from the perspective of the gut-brain axis and microglia, as well as astrocyte crosstalk, to inspire the discovery of novel AD therapeutics.
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Affiliation(s)
- Lushuang Xie
- Department of Neurosurgery, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
- Acupuncture and Moxibustion College, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, 610075, China
| | - Qiaofeng Wu
- Acupuncture and Moxibustion College, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, 610075, China
| | - Kelin Li
- Department of Neurosurgery, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
- Department of Chemistry, Boston University, Boston, MA 02215, USA
| | - Mohammed A S Khan
- Department of Neurosurgery, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Andrew Zhang
- Biomedical Cybernetics Laboratory, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Bharati Sinha
- Department of Neurosurgery, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Sihui Li
- Acupuncture and Moxibustion College, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, 610075, China
| | - Sulie L Chang
- Department of Biological Sciences, Institute of NeuroImmune Pharmacology, Seton Hall University, South Orange, NJ 07079, USA
| | - David L Brody
- Department of Neurology, Uniformed Services University of the Health Sciences, Bethesda, MD 20814, USA
| | - Mark W Grinstaff
- Department of Chemistry, Boston University, Boston, MA 02215, USA
| | - Shuanhu Zhou
- Harvard Medical School, Harvard Stem Cell Institute, Boston, MA 02115, USA
| | - Gil Alterovitz
- Biomedical Cybernetics Laboratory, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Pinghua Liu
- Department of Chemistry, Boston University, Boston, MA 02215, USA
| | - Xin Wang
- Department of Neurosurgery, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
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29
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Li N, Niu L, Liu Y, Wang Y, Su X, Xu C, Sun Z, Guo H, Gong J, Shen S. Taking SCFAs produced by Lactobacillus reuteri orally reshapes gut microbiota and elicits antitumor responses. J Nanobiotechnology 2024; 22:241. [PMID: 38735933 PMCID: PMC11089779 DOI: 10.1186/s12951-024-02506-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2023] [Accepted: 04/29/2024] [Indexed: 05/14/2024] Open
Abstract
BACKGROUND Colorectal cancer (CRC) incidence is increasing in recent years due to intestinal flora imbalance, making oral probiotics a hotspot for research. However, numerous studies related to intestinal flora regulation ignore its internal mechanisms without in-depth research. RESULTS Here, we developed a probiotic microgel delivery system (L.r@(SA-CS)2) through the layer-by-layer encapsulation technology of alginate (SA) and chitosan (CS) to improve gut microbiota dysbiosis and enhance anti-tumor therapeutic effect. Short chain fatty acids (SCFAs) produced by L.r have direct anti-tumor effects. Additionally, it reduces harmful bacteria such as Proteobacteria and Fusobacteriota, and through bacteria mutualophy increases beneficial bacteria such as Bacteroidota and Firmicutes which produce butyric acid. By binding to the G protein-coupled receptor 109A (GPR109A) on the surface of colonic epithelial cells, butyric acid can induce apoptosis in abnormal cells. Due to the low expression of GPR109A in colon cancer cells, MK-6892 (MK) can be used to stimulate GPR109A. With increased production of butyrate, activated GPR109A is able to bind more butyrate, which further promotes apoptosis of cancer cells and triggers an antitumor response. CONCLUSION It appears that the oral administration of L.r@(SA-CS)2 microgels may provide a treatment option for CRC by modifying the gut microbiota.
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Affiliation(s)
- Nannan Li
- Central Laboratory, First Affiliated Hospital, Institute (College) of Integrative Medicine, Dalian Medical University, Dalian, 116021, China
- Pharmacy Department, Shanghai Pudong Hospital, Fudan University Pudong Medical Center, Shanghai, 201399, China
| | - Lili Niu
- Central Laboratory, First Affiliated Hospital, Institute (College) of Integrative Medicine, Dalian Medical University, Dalian, 116021, China
- Pharmacy Department, Shanghai Pudong Hospital, Fudan University Pudong Medical Center, Shanghai, 201399, China
| | - Yao Liu
- Pharmacy Department, Shanghai Pudong Hospital, Fudan University Pudong Medical Center, Shanghai, 201399, China
- Clinical Oncology Center, Shanghai Municipal Hospital of TCM, Shanghai University of Traditional Chinese Medicine, Shanghai, 200071, China
| | - Yang Wang
- Central Laboratory, First Affiliated Hospital, Institute (College) of Integrative Medicine, Dalian Medical University, Dalian, 116021, China
- Pharmacy Department, Shanghai Pudong Hospital, Fudan University Pudong Medical Center, Shanghai, 201399, China
| | - Xiaomin Su
- Central Laboratory, First Affiliated Hospital, Institute (College) of Integrative Medicine, Dalian Medical University, Dalian, 116021, China
- Pharmacy Department, Shanghai Pudong Hospital, Fudan University Pudong Medical Center, Shanghai, 201399, China
| | - Ce Xu
- Central Laboratory, First Affiliated Hospital, Institute (College) of Integrative Medicine, Dalian Medical University, Dalian, 116021, China
- Pharmacy Department, Shanghai Pudong Hospital, Fudan University Pudong Medical Center, Shanghai, 201399, China
| | - Zanya Sun
- Central Laboratory, First Affiliated Hospital, Institute (College) of Integrative Medicine, Dalian Medical University, Dalian, 116021, China
- Pharmacy Department, Shanghai Pudong Hospital, Fudan University Pudong Medical Center, Shanghai, 201399, China
| | - Huishu Guo
- Central Laboratory, First Affiliated Hospital, Institute (College) of Integrative Medicine, Dalian Medical University, Dalian, 116021, China.
| | - Jingru Gong
- Pharmacy Department, Shanghai Pudong Hospital, Fudan University Pudong Medical Center, Shanghai, 201399, China.
| | - Shun Shen
- Pharmacy Department, Shanghai Pudong Hospital, Fudan University Pudong Medical Center, Shanghai, 201399, China.
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30
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Chen Z, Wang Z, Ma H, Bao H, Jiang T, Yang T, Ma S. Immune cells mediated the causal relationship between the gut microbiota and lung cancer: a Mendelian randomization study. Front Microbiol 2024; 15:1390722. [PMID: 38765682 PMCID: PMC11099228 DOI: 10.3389/fmicb.2024.1390722] [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: 02/23/2024] [Accepted: 04/16/2024] [Indexed: 05/22/2024] Open
Abstract
Introduction The gut microbiota (GM) influences the occurrence and progression of lung cancer (LC), with potential involvement of immune cells (IC). We aimed to investigate the causal impact of GM on LC and identify potential immune cell mediators. Methods The utilized data for the Genome-Wide Association Studies (GWAS) were summarized as follows: gut microbiota data from the Dutch Microbiome Project (DMP) (N = 7,738), lung cancer data from the Transdisciplinary Research in Cancer of the Lung (TRICL) and International Lung Cancer Consortium (ILCCO) (Ncase = 29,266, Ncontrol = 56,450) included four types of cancer: NSCLC, LUAD, LUSC, and SCLC, and immune cell data from European populations (N = 3,757). We employed bi-directional two-sample univariable Mendelian randomization (UVMR), multivariable Mendelian randomization (MVMR), and mediation analysis to assess the causal relationship between GM and LC and potential immune cell mediators. Results Bi-directional UVMR analysis revealed that 24 gut microbiota species can affect LC, while LC can affect the abundance of 17 gut microbiota species. Mediation analysis demonstrated that six immune cells mediated the causal relationships of seven gut microbiota species on LC: "CCR7 on naive CD8+ T cell" mediated the causal relationship between s_Alistipes_putredinis and LUAD, with a mediation proportion of 9.5% and P = 0.018; "IgD- CD27- B cell %lymphocyte" mediated the causal relationships between g_Gordonibacter and s_Gordonibacter_pamelaeae with LUSC, with mediation proportions of 11.8% and 11.9%, respectively and P = 0.029; "CD20- CD38- B cell %lymphocyte" mediated the causal relationship between s_Bacteroides_clarus and SCLC, with a mediation proportion of 13.8% and P = 0.005; "CD20 on IgD+ CD38- unswitched memory B cell" mediated the causal relationship between s_Streptococcus_thermophilus and SCLC, with a mediation proportion of 14.1% and P = 0.023; "HLA DR on CD14- CD16+ monocyte" mediated the causal relationship between s_Bifidobacterium_bifidum and SCLC, with a mediation proportion of 8.7% and P = 0.012; "CD45 on Granulocytic Myeloid-Derived Suppressor Cells" mediated the causal relationship between f_Lactobacillaceae and SCLC, with a mediation proportion of 4.0% and P = 0.021. Conclusion This Mendelian randomization study identified several specific gut microbiotas that exhibit causal relationships with lung cancer and potentially mediate immune cells.
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Affiliation(s)
- Zhiting Chen
- Department of Oncology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Zhe Wang
- Department of Oncology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Hao Ma
- Department of Obstetrics and Gynecology, Shijing People’s Hospital, Guangzhou, China
| | - Hejing Bao
- Department of Oncology, Panyu Central Hospital, Guangzhou, China
| | - Ting Jiang
- Department of Oncology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Ting Yang
- Department of Oncology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Shudong Ma
- Department of Oncology, Nanfang Hospital, Southern Medical University, Guangzhou, China
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31
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Li Q, Ke W, Jiang S, Zhang M, Shan K, Li C. Dietary Hemin Remodels Gut Microbiota and Mediates Tissue Inflammation and Injury in the Small Intestine. Mol Nutr Food Res 2024; 68:e2300889. [PMID: 38676468 DOI: 10.1002/mnfr.202300889] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Revised: 02/27/2024] [Indexed: 04/29/2024]
Abstract
SCOPE Epidemiological studies have linked excessive red and processed meat intake to gut disorders. Under laboratory conditions, high heme content is considered the primary health risk factor for red meat. However, heme in meat is present in myoglobin, which is an indigestible protein, suggesting the different functions between myoglobin and heme. This study aims to explore how dietary myoglobin and heme affect gut health and microbiota differently. METHODS AND RESULTS Histological and biochemical assessments as well as 16S rRNA sequencing are performed. Moderate myoglobin intake (equivalent to the recommended intake of 150 g meat per day for human) has beneficial effects on the duodenal barrier. However, a too high myoglobin diet (equivalent to intake of 3000 g meat per day for human) triggers duodenum injury and alters the microbial community. The hemin diet destroys intestinal tissue and ileal microbiota more significantly. The in vitro experiments further confirm that free heme exhibits high toxicity to beneficial gut bacteria while myoglobin promotes the growth and metabolism of Limosilactobacillus reuteri. CONCLUSION Moderate intake of myoglobin or hemin is beneficial to intestinal health and microbiota, but too high amounts lead to tissue inflammation and injury in the small intestine by reshaping ileal microbiota.
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Affiliation(s)
- Qian Li
- State Key Laboratory of Meat Quality Control and Cultured Meat Development, MOST, Key Laboratory of Meat Processing, MARA, Jiangsu Collaborative Innovative Center of Meat Production, Processing and Quality Control, College of Food Science and Technology, Nanjing Agricultural University, Nanjing, 210095, P.R. China
| | - Weixin Ke
- State Key Laboratory of Meat Quality Control and Cultured Meat Development, MOST, Key Laboratory of Meat Processing, MARA, Jiangsu Collaborative Innovative Center of Meat Production, Processing and Quality Control, College of Food Science and Technology, Nanjing Agricultural University, Nanjing, 210095, P.R. China
| | - Shuai Jiang
- College of Food Science and Light Industry, Nanjing Tech University, Nanjing, 211816, P.R. China
| | - Miao Zhang
- State Key Laboratory of Meat Quality Control and Cultured Meat Development, MOST, Key Laboratory of Meat Processing, MARA, Jiangsu Collaborative Innovative Center of Meat Production, Processing and Quality Control, College of Food Science and Technology, Nanjing Agricultural University, Nanjing, 210095, P.R. China
| | - Kai Shan
- State Key Laboratory of Meat Quality Control and Cultured Meat Development, MOST, Key Laboratory of Meat Processing, MARA, Jiangsu Collaborative Innovative Center of Meat Production, Processing and Quality Control, College of Food Science and Technology, Nanjing Agricultural University, Nanjing, 210095, P.R. China
| | - Chunbao Li
- State Key Laboratory of Meat Quality Control and Cultured Meat Development, MOST, Key Laboratory of Meat Processing, MARA, Jiangsu Collaborative Innovative Center of Meat Production, Processing and Quality Control, College of Food Science and Technology, Nanjing Agricultural University, Nanjing, 210095, P.R. China
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Parreira GJG, de Araújo Nobre MA, Moreira AGCR, Luís HPS. Limosilactobacillus reuteri as an Adjuvant in the Treatment of Peri-implant Mucositis in Total Rehabilitation: An Exploratory Study. Eur J Dent 2024; 18:610-618. [PMID: 38555646 PMCID: PMC11132781 DOI: 10.1055/s-0043-1777822] [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: 04/02/2024] Open
Abstract
OBJECTIVES Mechanical debridement is the traditional method for the treatment of peri-implant mucositis (P-im) and its success depends on the patient's correct oral hygiene. It is believed that probiotics may help by their ability to modulate the oral biofilm, resulting in anti-inflammatory and antibacterial plaque action. The aim of this study was to evaluate the adjuvant effect of the probiotic Limosilactobacillus reuteri (LR) in the mechanical treatment of P-im. MATERIALS AND METHODS This exploratory study included 29 subjects with implant-supported total rehabilitation and P-im, divided into test (TG) and control (CG) groups, equally subjected to professional mechanical debridement, with the administration of a daily GUM PerioBalance lozenge for 30 days added to the TG. The modified Plaque Index (mPlI) modified Sulcus Bleeding Index (mBI) and pocket depth (PD) were evaluated before the intervention (baseline) and 6 and 10 weeks later. STATISTICAL ANALYSIS Parametric and nonparametric tests with 5% significance level were used in the statistical analysis, using IBM SPSS Statistics 27.0 software. RESULTS Both treatments resulted in reduced mPlI, mBI, and PD at 6 weeks; while from 6 to 10 weeks there was an increase in mPlI and mBI and maintenance of PD. Compared with baseline, differences were close to statistical significance in the reduction in PD at 10 weeks in the CG (p = 0.018), after Bonferroni correction, and statistically significant in the mPlI at 6 weeks in the CG (p = 0.004) and in the TG (p = 0.002) as well as at 10 weeks in the TG (p = 0.016). Comparing the groups in the postintervention assessments, no statistically significant differences were found. CONCLUSION LR adjuvant mechanical treatment of P-im does not show a clear benefit compared with mechanical treatment alone, with both interventions achieving similar clinical results. Further prospective and long-term studies are needed.
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Affiliation(s)
- Gonçalo J G Parreira
- Universidade de Lisboa, Faculdade de Medicina Dentária, Unidade de Investigação em Ciências Orais e Biomédicas (UICOB), Lisboa, Portugal
- Oral Hygiene Department, Maló Clinic, Lisbon, Portugal
- Universidade de Lisboa, Faculdade de Medicina Dentária, Rede de Higienistas Orais para o Desenvolvimento da Ciência (RHODes), Lisboa, Portugal
| | - Miguel A de Araújo Nobre
- Oral Hygiene Department, Maló Clinic, Lisbon, Portugal
- Research and Development Department, Maló Clinic, Lisbon, Portugal
- Clínica Universitária de Estomatologia, Faculdade de Medicina, Universidade de Lisboa, Portugal
| | - André G C R Moreira
- Universidade de Lisboa, Faculdade de Medicina Dentária, Unidade de Investigação em Ciências Orais e Biomédicas (UICOB), Lisboa, Portugal
| | - Henrique P S Luís
- Universidade de Lisboa, Faculdade de Medicina Dentária, Unidade de Investigação em Ciências Orais e Biomédicas (UICOB), Lisboa, Portugal
- Universidade de Lisboa, Faculdade de Medicina Dentária, Rede de Higienistas Orais para o Desenvolvimento da Ciência (RHODes), Lisboa, Portugal
- Center for Innovative Care and Health Technology (ciTechcare), Polytechnic of Leiria, Leiria, Portugal
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Wang J, Zhang H, Yuan H, Chen S, Yu Y, Zhang X, Gao Z, Du H, Li W, Wang Y, Xia P, Wang J, Song M. Prophylactic Supplementation with Lactobacillus Reuteri or Its Metabolite GABA Protects Against Acute Ischemic Cardiac Injury. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2307233. [PMID: 38487926 PMCID: PMC11095141 DOI: 10.1002/advs.202307233] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2023] [Revised: 12/06/2023] [Indexed: 05/16/2024]
Abstract
The gut microbiome has emerged as a potential target for the treatment of cardiovascular disease. Ischemia/reperfusion (I/R) after myocardial infarction is a serious complication and whether certain gut bacteria can serve as a treatment option remains unclear. Lactobacillus reuteri (L. reuteri) is a well-studied probiotic that can colonize mammals including humans with known cholesterol-lowering properties and anti-inflammatory effects. Here, the prophylactic cardioprotective effects of L. reuteri or its metabolite γ-aminobutyric acid (GABA) against acute ischemic cardiac injury caused by I/R surgery are demonstrated. The prophylactic gavage of L. reuteri or GABA confers cardioprotection mainly by suppressing cardiac inflammation upon I/R. Mechanistically, GABA gavage results in a decreased number of proinflammatory macrophages in I/R hearts and GABA gavage no longer confers any cardioprotection in I/R hearts upon the clearance of macrophages. In vitro studies with LPS-stimulated bone marrow-derived macrophages (BMDM) further reveal that GABA inhibits the polarization of macrophages toward the proinflammatory M1 phenotype by inhibiting lysosomal leakage and NLRP3 inflammasome activation. Together, this study demonstrates that the prophylactic oral administration of L. reuteri or its metabolite GABA attenuates macrophage-mediated cardiac inflammation and therefore alleviates cardiac dysfunction after I/R, thus providing a new prophylactic strategy to mitigate acute ischemic cardiac injury.
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Affiliation(s)
- Jiawan Wang
- State Key Laboratory of Membrane BiologyInstitute of ZoologyChinese Academy of SciencesBeijing100101China
- Beijing Institute for Stem Cell and Regenerative MedicineBeijing100101China
- Key Laboratory of Organ Regeneration and ReconstructionChinese Academy of SciencesBeijing100101China
- Beijing Chao‐Yang HospitalDepartment of AnesthesiologyBeijing100020China
| | - Hao Zhang
- State Key Laboratory of Membrane BiologyInstitute of ZoologyChinese Academy of SciencesBeijing100101China
- Beijing Institute for Stem Cell and Regenerative MedicineBeijing100101China
- Key Laboratory of Organ Regeneration and ReconstructionChinese Academy of SciencesBeijing100101China
- University of Chinese Academy of SciencesBeijing100049China
| | - Hailong Yuan
- State Key Laboratory of Membrane BiologyInstitute of ZoologyChinese Academy of SciencesBeijing100101China
- Beijing Institute for Stem Cell and Regenerative MedicineBeijing100101China
- Key Laboratory of Organ Regeneration and ReconstructionChinese Academy of SciencesBeijing100101China
- Joint National Laboratory for Antibody Drug EngineeringHenan UniversityKaifeng475004China
| | - Siqi Chen
- State Key Laboratory of Membrane BiologyInstitute of ZoologyChinese Academy of SciencesBeijing100101China
- Beijing Institute for Stem Cell and Regenerative MedicineBeijing100101China
- Key Laboratory of Organ Regeneration and ReconstructionChinese Academy of SciencesBeijing100101China
- University of Chinese Academy of SciencesBeijing100049China
| | - Ying Yu
- University of Chinese Academy of SciencesBeijing100049China
- CAS Key Laboratory of Pathogenic Microbiology and ImmunologyChinese Academy of SciencesBeijing100101China
| | - Xuan Zhang
- CAS Key Laboratory of Pathogenic Microbiology and ImmunologyChinese Academy of SciencesBeijing100101China
| | - Zeyu Gao
- State Key Laboratory of Membrane BiologyInstitute of ZoologyChinese Academy of SciencesBeijing100101China
- Beijing Institute for Stem Cell and Regenerative MedicineBeijing100101China
- Key Laboratory of Organ Regeneration and ReconstructionChinese Academy of SciencesBeijing100101China
| | - Heng Du
- State Key Laboratory of Membrane BiologyInstitute of ZoologyChinese Academy of SciencesBeijing100101China
- Beijing Institute for Stem Cell and Regenerative MedicineBeijing100101China
- Key Laboratory of Organ Regeneration and ReconstructionChinese Academy of SciencesBeijing100101China
- University of Chinese Academy of SciencesBeijing100049China
| | - Weitao Li
- Department of ImmunologySchool of Basic Medical SciencesPeking UniversityBeijing100191China
| | - Yaohui Wang
- Joint National Laboratory for Antibody Drug EngineeringHenan UniversityKaifeng475004China
| | - Pengyan Xia
- Department of ImmunologySchool of Basic Medical SciencesPeking UniversityBeijing100191China
| | - Jun Wang
- University of Chinese Academy of SciencesBeijing100049China
- CAS Key Laboratory of Pathogenic Microbiology and ImmunologyChinese Academy of SciencesBeijing100101China
| | - Moshi Song
- State Key Laboratory of Membrane BiologyInstitute of ZoologyChinese Academy of SciencesBeijing100101China
- Beijing Institute for Stem Cell and Regenerative MedicineBeijing100101China
- Key Laboratory of Organ Regeneration and ReconstructionChinese Academy of SciencesBeijing100101China
- University of Chinese Academy of SciencesBeijing100049China
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Li Y, Ning X, Zhao Z, He X, Xue Q, Zhou M, Li W, Li M. Core fucosylation of maternal milk N-glycans imparts early-life immune tolerance through gut microbiota-dependent regulation in RORγt + Treg cells. Food Funct 2024; 15:4140-4153. [PMID: 38445991 DOI: 10.1039/d4fo00230j] [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: 03/07/2024]
Abstract
Milk glycans play key roles in shaping and maintaining a healthy infant gut microbiota. Core fucosylation catalyzed by fucosyltransferase (Fut8) is the major glycosylation pattern on human milk N-glycan, which was crucial for promoting the colonization and dominant growth of Bifidobacterium and Lactobacillus spp. in neonates. However, the influence of core-fucose in breast milk on the establishment of early-life immune tolerance remains poorly characterized. In this study, we found that the deficiency of core-fucose in the milk of maternal mice caused by Fut8 gene heterozygosity (Fut8+/-) resulted in poor immune tolerance towards the ovalbumin (OVA) challenge, accompanied by a reduced proportion of intestinal RORγt+ Treg cells and the abundance of Lactobacillus spp., especially L. reuteri and L. johnsonii, in their breast-fed neonates. The administration of the L. reuteri and L. johnsonii mixture to neonatal mice compromised the OVA-induced allergy and up-regulated the intestinal RORγt+ Treg cell proportions. However, Lactobacillus mixture supplementation did not alleviate allergic responses in RORγt+ Treg cell-deficient mice caused by Rorc gene heterozygosity (Rorc+/-) post OVA challenge, indicating that the intervention effects depend on the RORγt+ Treg cells. Interestingly, instead of L. reuteri and L. johnsonii, we found that the relative abundance of another Lactobacillus spp., L. murinus, in the gut of the offspring mice was significantly promoted by intervention, which showed enhancing effects on the proliferation of splenic and intestinal RORγt+ Treg cells in in vitro studies. The above results indicate that core fucosylation of breast milk N-glycans is beneficial for the establishment of RORγt+ Treg cell mediated early-life immune tolerance through the manipulation of symbiotic bacteria in mice.
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Affiliation(s)
- Yuyuan Li
- Advanced Institute for Medical Sciences, Dalian Medical University, Dalian, China.
| | - Xixi Ning
- College of Basic Medical Science, Dalian Medical University, Dalian, China.
| | - Zihui Zhao
- Pelvic Floor Repair Center, Dalian Women and Children's Medical Group, Dalian, China
| | - Xi He
- College of Basic Medical Science, Dalian Medical University, Dalian, China.
| | - Qidi Xue
- College of Basic Medical Science, Dalian Medical University, Dalian, China.
| | - Manlin Zhou
- College of Basic Medical Science, Dalian Medical University, Dalian, China.
| | - Wenzhe Li
- Shantou University Medical College, Shantou, Guangdong, China.
| | - Ming Li
- College of Basic Medical Science, Dalian Medical University, Dalian, China.
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Jang YJ, Choi HS, Oh I, Chung JH, Moon JS. Effects of Limosilactobacillus reuteri ID-D01 Probiotic Supplementation on Exercise Performance and Gut Microbiota in Sprague-Dawley Rats. Probiotics Antimicrob Proteins 2024:10.1007/s12602-024-10257-9. [PMID: 38635106 DOI: 10.1007/s12602-024-10257-9] [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] [Accepted: 04/07/2024] [Indexed: 04/19/2024]
Abstract
The gut microbiota composition in animals and humans has recently been found to be influenced by exercise. Although Limosilactobacillus reuteri strains have notable probiotic properties that promote human health, understanding of its effects in combination with exercise and physical activity is limited. Therefore, this study examined the effects of L. reuteri ID-D01, a human-derived probiotic, on exercise performance and fatigue in Sprague-Dawley rats. Organ weight, maximal running distance, serum biochemistry, muscle performance, microbial community composition, and short-chain fatty acid (SCFA) levels were assessed. Results indicated that ID-D01 supplementation significantly improved endurance performance. Rats in the probiotic group demonstrated a significant increase in maximal running distance compared with that in the control group (p < 0.05). Additionally, levels of fatigue markers, such as lactate and creatine phosphokinase, were significantly reduced in the ID-D01-administered groups, suggesting its potential to alleviate exercise-induced fatigue. Microbiome analysis revealed a distinct shift in gut microbiota composition in response to ID-D01 administration. The group that received ID-D01 probiotics exhibited a significant increase in the abundance of SCFA-producing bacteria, particularly Akkermansia spp., compared with that in the control groups. Furthermore, they showed elevated production of SCFAs, such as acetate and butyrate. In conclusion, this study demonstrated that ID-D01 can enhance exercise performance and reduce fatigue. Herein, we highlighted that human-derived probiotics could improve physical performance, as observed by changes in gut microbiota composition and SCFA production.
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Affiliation(s)
- Ye-Ji Jang
- YUNOVIA Co., Ltd, Hwaseong, 18449, Republic of Korea
| | - Han Sol Choi
- YUNOVIA Co., Ltd, Hwaseong, 18449, Republic of Korea
| | - Ikhoon Oh
- YUNOVIA Co., Ltd, Hwaseong, 18449, Republic of Korea
| | | | - Jin Seok Moon
- YUNOVIA Co., Ltd, Hwaseong, 18449, Republic of Korea.
- Ildong Pharmaceutical Co., Ltd, Seoul, 06752, Republic of Korea.
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Chen H, Huang S, Zhao Y, Sun R, Wang J, Yao S, Huang J, Yu Z. Metagenomic analysis of the intestinal microbiome reveals the potential mechanism involved in Bacillus amyloliquefaciens in treating schistosomiasis japonica in mice. Microbiol Spectr 2024; 12:e0373523. [PMID: 38441977 PMCID: PMC10986500 DOI: 10.1128/spectrum.03735-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2023] [Accepted: 02/11/2024] [Indexed: 03/07/2024] Open
Abstract
Schistosomiasis japonica is one of the neglected tropical diseases characterized by chronic hepatic, intestinal granulomatous inflammation and fibrosis, as well as dysbiosis of intestinal microbiome. Previously, the probiotic Bacillus amyloliquefaciens has been shown to alleviate the pathological injuries in mice infected with Schistosoma japonicum by improving the disturbance of the intestinal microbiota. However, the underlying mechanisms involved in this process remain unclear. In this study, metagenomics sequencing and functional analysis were employed to investigate the differential changes in taxonomic composition and functional genes of the intestinal microbiome in S. japonicum-infected mice treated with B. amyloliquefaciens. The results revealed that intervention with B. amyloliquefaciens altered the taxonomic composition of the intestinal microbiota at the species level in infected mice and significantly increased the abundance of beneficial bacteria. Moreover, the abundance of predicted genes in the intestinal microbiome was also significantly changed, and the abundance of xfp/xpk and genes translated to urease was significantly restored. Further analysis showed that Limosilactobacillus reuteri was positively correlated with several KEGG Orthology (KO) genes and metabolic reactions, which might play important roles in alleviating the pathological symptoms caused by S. japonicum infection, indicating that it has the potential to function as another effective therapeutic agent for schistosomiasis. These data suggested that treatment of murine schistosomiasis japonica by B. amyloliquefaciens might be induced by alterations in the taxonomic composition and functional gene of the intestinal microbiome in mice. We hope this study will provide adjuvant strategies and methods for the early prevention and treatment of schistosomiasis japonica. IMPORTANCE Targeted interventions of probiotics on gut microbiome were used to explore the mechanism of alleviating schistosomiasis japonica. Through metagenomic analysis, there were significant changes in the composition of gut microbiota in mice infected with Schistosoma japonicum and significant increase in the abundance of beneficial bacteria after the intervention of Bacillus amyloliquefaciens. At the same time, the abundance of functional genes was found to change significantly. The abundance of genes related to urease metabolism and xfp/xpk related to D-erythrose 4-phosphate production was significantly restored, highlighting the importance of Limosilactobacillus reuteri in the recovery and abundance of predicted genes of the gut microbiome. These results indicated potential regulatory mechanism between the gene function of gut microbiome and host immune response. Our research lays the foundation for elucidating the regulatory mechanism of probiotic intervention in alleviating schistosomiasis japonica, and provides potential adjuvant treatment strategies for early prevention and treatment of schistosomiasis japonica.
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Affiliation(s)
- Hao Chen
- Department of Parasitology, School of Basic Medical Science, Central South University, Changsha, Hunan, China
- Human Microbiome and Health Group, Department of Microbiology, School of Basic Medical Science, Central South University, Changsha, Hunan, China
| | - Shuaiqin Huang
- Department of Parasitology, School of Basic Medical Science, Central South University, Changsha, Hunan, China
| | - Yiming Zhao
- Human Microbiome and Health Group, Department of Microbiology, School of Basic Medical Science, Central South University, Changsha, Hunan, China
| | - Ruizheng Sun
- Department of General Surgery, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Jingyan Wang
- Human Microbiome and Health Group, Department of Microbiology, School of Basic Medical Science, Central South University, Changsha, Hunan, China
| | - Siqi Yao
- Human Microbiome and Health Group, Department of Microbiology, School of Basic Medical Science, Central South University, Changsha, Hunan, China
| | - Jing Huang
- Department of Parasitology, School of Basic Medical Science, Central South University, Changsha, Hunan, China
- Human Microbiome and Health Group, Department of Microbiology, School of Basic Medical Science, Central South University, Changsha, Hunan, China
| | - Zheng Yu
- Human Microbiome and Health Group, Department of Microbiology, School of Basic Medical Science, Central South University, Changsha, Hunan, China
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Khan S, Ahmad F, Khalid N. Applications of Strain-Specific Probiotics in the Management of Cardiovascular Diseases: A Systemic Review. Mol Nutr Food Res 2024; 68:e2300675. [PMID: 38549453 DOI: 10.1002/mnfr.202300675] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Revised: 02/14/2024] [Indexed: 05/08/2024]
Abstract
Cardiovascular diseases (CVDs) are a leading cause of global mortality and novel approaches for prevention and management are needed. The human gastrointestinal tract hosts a diverse microbiota that is crucial in maintaining metabolic homeostasis. The formulation of effective probiotics, alone or in combination, has been under discussion due to their impact on cardiovascular and metabolic diseases. Probiotics have been shown to impact cardiovascular health positively. An imbalance in the presence of Firmicutes and Bacteroidetes has been linked to the progression of CVDs due to their impact on bile acid and cholesterol metabolism. The probiotics primarily help in the reduction of plasma low-density lipoprotein levels and attenuation of the proinflammatory markers. These beneficial microorganisms contribute to lowering cholesterol levels and produce essential short-chain fatty acids. The impact of lipid-regulating probiotic strains on human health is quite significant. However, only a few have been tested for potential beneficial efficacy, and ambiguity exists regarding strain dosages, interactions with confounding factors, and potential adverse effects. Hence, more comprehensive studies and randomized trials are needed to understand the mechanisms of probiotics on CVDs and to ensure human health. This review assesses the evidence and highlights the roles of strain-specific probiotics in the management of CVDs.
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Affiliation(s)
- Saleha Khan
- Department of Human Nutrition and Dietetics, School of Food and Agricultural Sciences, University of Management and Technology, Lahore, 54000, Pakistan
| | - Firdos Ahmad
- Department of Basic Medical Sciences, College of Medicine, University of Sharjah, Sharjah, 27272, United Arab Emirates
| | - Nauman Khalid
- Department of Human Nutrition and Dietetics, School of Food and Agricultural Sciences, University of Management and Technology, Lahore, 54000, Pakistan
- College of Health Sciences, Abu Dhabi University, Abu Dhabi, 59911, United Arab Emirates
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Li Y, Lu H, Liao C, Liu X. Oxidized konjac glucomannan: A safe dietary fiber influencing mouse gut microbiota. Food Chem X 2024; 21:101089. [PMID: 38259509 PMCID: PMC10801215 DOI: 10.1016/j.fochx.2023.101089] [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: 09/20/2023] [Revised: 12/12/2023] [Accepted: 12/18/2023] [Indexed: 01/24/2024] Open
Abstract
In this 13-week study, the potential effects of oxidized konjac glucomannan (OKGM) on ICR mice's metabolic health and gut microbiota were investigated and contrasted with enzyme-hydrolyzed KGM (EKGM) at a same molecular weight. Mice were fed diets containing 0 %, 2.5 %, 5.0 %, and 7.5 % of OKGM for 13 weeks. Results indicated that OKGM induced no adverse effects, with overall health, body weight gain, food consumption, and clinical pathology parameters being comparable to the control group. The no-observed-adverse-effect-level for OKGM was determined at 7.5 % in the diet, corresponding to 10.21 and 12.01 g/kg/day for male and female mice, respectively. OKGM intake positively regulated gut microbiota, characterized by a reduction in the relative abundance of Firmicutes, an increase in Bacteroidetes, and an enhanced presence of Lactobacillus, particularly Lactobacillus reuteri. In comparison, EKGM differently modulated the microbiota, notably increasing Muribaculaceae. These findings suggest that OKGM has the potential to be a functional food additive.
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Affiliation(s)
- Yao Li
- College of Food Science and Engineering, Hainan University, Haikou 570228, China
- College of Food Science, Southwest University, Chongqing 400715, China
| | - Hongjia Lu
- College of Landscape Architecture and Life Science, Chongqing University Of Arts and Sciences, Chongqing 402160, China
| | - Chao Liao
- College of Food Science, Southwest University, Chongqing 400715, China
- Quality Supervision Center of Wuliangye Co. Ltd., Sichuan 644000, China
| | - Xiong Liu
- College of Food Science, Southwest University, Chongqing 400715, China
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Shen X, Yang Z, Wang Q, Chen X, Zhu Q, Liu Z, Patel N, Liu X, Mo X. Lactobacillus plantarum L168 improves hyperoxia-induced pulmonary inflammation and hypoalveolarization in a rat model of bronchopulmonary dysplasia. NPJ Biofilms Microbiomes 2024; 10:32. [PMID: 38553470 PMCID: PMC10980738 DOI: 10.1038/s41522-024-00504-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Accepted: 03/20/2024] [Indexed: 04/02/2024] Open
Abstract
Alteration of gut microbiota can affect chronic lung diseases, such as asthma and chronic obstructive pulmonary disease, through abnormal immune and inflammatory responses. Previous studies have shown a feasible connection between gut microbiota and bronchopulmonary dysplasia (BPD) in preterm infants. However, whether BPD can be ameliorated by restoring the gut microbiota remains unclear. In preterm infants with BPD, we found variance in the diversity and structure of gut microbiota. Similarly, BPD rats showed gut dysbiosis, characterized by a deficiency of Lactobacillus, which was abundant in normal rats. We therefore explored the effect and potential mechanism of action of a probiotic strain, Lactobacillus plantarum L168, in improving BPD. The BPD rats were treated with L. plantarum L168 by gavage for 2 weeks, and the effect was evaluated by lung histopathology, lung function, and serum inflammatory markers. Subsequently, we observed reduced lung injury and improved lung development in BPD rats exposed to L. plantarum L168. Further evaluation revealed that L. plantarum L168 improved intestinal permeability in BPD rats. Serum metabolomics showed altered inflammation-associated metabolites following L. plantarum L168 intervention, notably a marked increase in anti-inflammatory metabolites. In agreement with the metabolites analysis, RNA-seq analysis of the intestine and lung showed that inflammation and immune-related genes were down-regulated. Based on the information from RNA-seq, we validated that L. plantarum L168 might improve BPD relating to down-regulation of TLR4 /NF-κB /CCL4 pathway. Together, our findings suggest the potential of L. plantarum L168 to provide probiotic-based therapeutic strategies for BPD.
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Affiliation(s)
- Xian Shen
- Department of Neonatology, Children's Hospital of Nanjing Medical University, Nanjing, China
| | - Zhaocong Yang
- Department of Cardiothoracic Surgery, Children's Hospital of Nanjing Medical University, Nanjing, China
| | - Qiang Wang
- Department of Cardiothoracic Surgery, Children's Hospital of Nanjing Medical University, Nanjing, China
| | - Xu Chen
- Department of Neonatology, Children's Hospital of Nanjing Medical University, Nanjing, China
| | - Qihui Zhu
- State Key Laboratory of Reproductive Medicine, Key Laboratory of Pathogen of Jiangsu Province, Key Laboratory of Human Functional Genomics of Jiangsu Province Center of Global Health, Nanjing Medical University, Nanjing, China
| | - Zhi Liu
- State Key Laboratory of Reproductive Medicine, Key Laboratory of Pathogen of Jiangsu Province, Key Laboratory of Human Functional Genomics of Jiangsu Province Center of Global Health, Nanjing Medical University, Nanjing, China
| | - Nishant Patel
- Department of Cardiothoracic Surgery, Children's Hospital of Nanjing Medical University, Nanjing, China
| | - Xingyin Liu
- State Key Laboratory of Reproductive Medicine, Key Laboratory of Pathogen of Jiangsu Province, Key Laboratory of Human Functional Genomics of Jiangsu Province Center of Global Health, Nanjing Medical University, Nanjing, China.
| | - Xuming Mo
- Department of Cardiothoracic Surgery, Children's Hospital of Nanjing Medical University, Nanjing, China.
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Schwarcz R, Foo A, Sathyasaikumar KV, Notarangelo FM. The Probiotic Lactobacillus reuteri Preferentially Synthesizes Kynurenic Acid from Kynurenine. Int J Mol Sci 2024; 25:3679. [PMID: 38612489 PMCID: PMC11011989 DOI: 10.3390/ijms25073679] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2024] [Revised: 03/15/2024] [Accepted: 03/18/2024] [Indexed: 04/14/2024] Open
Abstract
The gut-brain axis is increasingly understood to play a role in neuropsychiatric disorders. The probiotic bacterium Lactobacillus (L.) reuteri and products of tryptophan degradation, specifically the neuroactive kynurenine pathway (KP) metabolite kynurenic acid (KYNA), have received special attention in this context. We, therefore, assessed relevant features of KP metabolism, namely, the cellular uptake of the pivotal metabolite kynurenine and its conversion to its primary products KYNA, 3-hydroxykynurenine and anthranilic acid in L. reuteri by incubating the bacteria in Hank's Balanced Salt solution in vitro. Kynurenine readily entered the bacterial cells and was preferentially converted to KYNA, which was promptly released into the extracellular milieu. De novo production of KYNA increased linearly with increasing concentrations of kynurenine (up to 1 mM) and bacteria (107 to 109 CFU/mL) and with incubation time (1-3 h). KYNA neosynthesis was blocked by two selective inhibitors of mammalian kynurenine aminotransferase II (PF-048559989 and BFF-122). In contrast to mammals, however, kynurenine uptake was not influenced by other substrates of the mammalian large neutral amino acid transporter, and KYNA production was not affected by the presumed competitive enzyme substrates (glutamine and α-aminoadipate). Taken together, these results reveal substantive qualitative differences between bacterial and mammalian KP metabolism.
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Affiliation(s)
- Robert Schwarcz
- Maryland Psychiatric Research Center, Department of Psychiatry, University of Maryland School of Medicine, Baltimore, MD 21228, USA; (A.F.); (K.V.S.)
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Josephs-Spaulding J, Rajput A, Hefner Y, Szubin R, Balasubramanian A, Li G, Zielinski DC, Jahn L, Sommer M, Phaneuf P, Palsson BO. Reconstructing the transcriptional regulatory network of probiotic L. reuteri is enabled by transcriptomics and machine learning. mSystems 2024; 9:e0125723. [PMID: 38349131 PMCID: PMC10949432 DOI: 10.1128/msystems.01257-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Accepted: 01/09/2024] [Indexed: 03/20/2024] Open
Abstract
Limosilactobacillus reuteri, a probiotic microbe instrumental to human health and sustainable food production, adapts to diverse environmental shifts via dynamic gene expression. We applied the independent component analysis (ICA) to 117 RNA-seq data sets to decode its transcriptional regulatory network (TRN), identifying 35 distinct signals that modulate specific gene sets. Our findings indicate that the ICA provides a qualitative advancement and captures nuanced relationships within gene clusters that other methods may miss. This study uncovers the fundamental properties of L. reuteri's TRN and deepens our understanding of its arginine metabolism and the co-regulation of riboflavin metabolism and fatty acid conversion. It also sheds light on conditions that regulate genes within a specific biosynthetic gene cluster and allows for the speculation of the potential role of isoprenoid biosynthesis in L. reuteri's adaptive response to environmental changes. By integrating transcriptomics and machine learning, we provide a system-level understanding of L. reuteri's response mechanism to environmental fluctuations, thus setting the stage for modeling the probiotic transcriptome for applications in microbial food production. IMPORTANCE We have studied Limosilactobacillus reuteri, a beneficial probiotic microbe that plays a significant role in our health and production of sustainable foods, a type of foods that are nutritionally dense and healthier and have low-carbon emissions compared to traditional foods. Similar to how humans adapt their lifestyles to different environments, this microbe adjusts its behavior by modulating the expression of genes. We applied machine learning to analyze large-scale data sets on how these genes behave across diverse conditions. From this, we identified 35 unique patterns demonstrating how L. reuteri adjusts its genes based on 50 unique environmental conditions (such as various sugars, salts, microbial cocultures, human milk, and fruit juice). This research helps us understand better how L. reuteri functions, especially in processes like breaking down certain nutrients and adapting to stressful changes. More importantly, with our findings, we become closer to using this knowledge to improve how we produce more sustainable and healthier foods with the help of microbes.
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Affiliation(s)
- Jonathan Josephs-Spaulding
- The Novo Nordisk Foundation Center for Biosustainability, Technical University of Denmark, Copenhagen, Denmark
| | - Akanksha Rajput
- Department of Bioengineering, University of California, San Diego, California, USA
| | - Ying Hefner
- Department of Bioengineering, University of California, San Diego, California, USA
| | - Richard Szubin
- Department of Bioengineering, University of California, San Diego, California, USA
| | | | - Gaoyuan Li
- Department of Bioengineering, University of California, San Diego, California, USA
| | - Daniel C. Zielinski
- Department of Bioengineering, University of California, San Diego, California, USA
| | - Leonie Jahn
- The Novo Nordisk Foundation Center for Biosustainability, Technical University of Denmark, Copenhagen, Denmark
| | - Morten Sommer
- The Novo Nordisk Foundation Center for Biosustainability, Technical University of Denmark, Copenhagen, Denmark
| | - Patrick Phaneuf
- The Novo Nordisk Foundation Center for Biosustainability, Technical University of Denmark, Copenhagen, Denmark
| | - Bernhard O. Palsson
- The Novo Nordisk Foundation Center for Biosustainability, Technical University of Denmark, Copenhagen, Denmark
- Department of Bioengineering, University of California, San Diego, California, USA
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Teixeira CG, Belguesmia Y, da Silva Rodrigues R, Lucau-Danila A, Nero LA, de Carvalho AF, Drider D. Assessment of safety and in situ antibacterial activity of Weissella cibaria strains isolated from dairy farms in Minas Gerais State, Brazil, for their food application. Braz J Microbiol 2024; 55:699-710. [PMID: 38253975 PMCID: PMC10920571 DOI: 10.1007/s42770-023-01244-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Accepted: 12/29/2023] [Indexed: 01/24/2024] Open
Abstract
Weissella cibaria W21, W25, and W42 strains have previously been characterized for their antagonism against a range of foodborne pathogens. However, prior to their use as protective agents, further analyses such as their safety and in situ activity are needed. The safety of W. cibaria W21, W25, and W42 strains was predicted in silico and confirmed experimentally. Analyses of their genomes using appropriate software did not reveal any acquired antimicrobial resistance genes, nor mobile genetic elements (MGEs). The survival of each strain was determined in vitro under conditions mimicking the gastrointestinal tract (GIT). Thus, hemolysis analysis was performed using blood agar and the cytotoxicity assay was determined using a mixture of two cell lines (80% of Caco-2 and 20% of HT-29). We also performed the inflammation and anti-inflammation capabilities of these strains using the promonocytic human cell line U937. The Weissella strains were found to be haemolysis-negative and non-cytotoxic and did not induce any inflammation. Furthermore, these strains adhered tightly to intestinal Caco-2 cell-lines and exerted in situ anti-proliferative activity against methicillin-resistant Staphylococcus aureus (strain MRSA S1) and Escherichia coli 181, a colistin-resistant strain. However, the W. cibaria strains showed low survival rate under simulated GIT conditions in vitro. The unusual LAB-strains W. cibaria strains W21, W25, and W42 are safe and endowed with potent antibacterial activities. These strains are therefore good candidates for industrial applications. The results of this study provide a characterization and insights into Weissella strains, which are considered unusual LAB, but which prompt a growing interest in their bio-functional properties and their potential industrial applications.
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Affiliation(s)
- Camila Gonçalves Teixeira
- InovaLeite-Laboratório de Pesquisa em Leite e Derivados, Departamento de Tecnologia de Alimentos, Universidade Federal de Viçosa, Viçosa, MG, 36570 900, Brazil
- Unité Mixte de Recherche (UMR) Transfrontalière BioEcoAgro1158, Univ. Lille, INRAE, Univ. Liège, UPJV, YNCREA, Univ. Artois, Univ. Littoral Côte D'Opale, ICV-Institut Charles Viollette, 59000, Lille, France
| | - Yanath Belguesmia
- Unité Mixte de Recherche (UMR) Transfrontalière BioEcoAgro1158, Univ. Lille, INRAE, Univ. Liège, UPJV, YNCREA, Univ. Artois, Univ. Littoral Côte D'Opale, ICV-Institut Charles Viollette, 59000, Lille, France
| | - Rafaela da Silva Rodrigues
- InovaLeite-Laboratório de Pesquisa em Leite e Derivados, Departamento de Tecnologia de Alimentos, Universidade Federal de Viçosa, Viçosa, MG, 36570 900, Brazil
- InsPOA-Laboratório de Inspeção de Produtos de Origem Animal, Departamento de Veterinária, Universidade Federal de Viçosa, Viçosa, MG, 36570 900, Brazil
| | - Anca Lucau-Danila
- Unité Mixte de Recherche (UMR) Transfrontalière BioEcoAgro1158, Univ. Lille, INRAE, Univ. Liège, UPJV, YNCREA, Univ. Artois, Univ. Littoral Côte D'Opale, ICV-Institut Charles Viollette, 59000, Lille, France
| | - Luís Augusto Nero
- InsPOA-Laboratório de Inspeção de Produtos de Origem Animal, Departamento de Veterinária, Universidade Federal de Viçosa, Viçosa, MG, 36570 900, Brazil
| | - Antônio Fernandes de Carvalho
- InovaLeite-Laboratório de Pesquisa em Leite e Derivados, Departamento de Tecnologia de Alimentos, Universidade Federal de Viçosa, Viçosa, MG, 36570 900, Brazil.
| | - Djamel Drider
- Unité Mixte de Recherche (UMR) Transfrontalière BioEcoAgro1158, Univ. Lille, INRAE, Univ. Liège, UPJV, YNCREA, Univ. Artois, Univ. Littoral Côte D'Opale, ICV-Institut Charles Viollette, 59000, Lille, France.
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He F, Ma XK, Tu CK, Teng H, Shao X, Chen J, Hu MX. Lactobacillus reuteri biofilms formed on porous zein/cellulose scaffolds: Synbiotics to regulate intestinal microbiota. Int J Biol Macromol 2024; 262:130152. [PMID: 38365143 DOI: 10.1016/j.ijbiomac.2024.130152] [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: 10/08/2023] [Revised: 02/04/2024] [Accepted: 02/11/2024] [Indexed: 02/18/2024]
Abstract
Supplementing probiotics or indigestible carbohydrates is a usual strategy to prevent or revert unhealthy states of the gut by reshaping gut microbiota. One criterion that probiotics are efficacious is the capacity to survive in the gastrointestinal tract. Biofilm is the common growth mode of microorganisms with high tolerances toward harsh environments. Suitable scaffolds are crucial for successful biofilm culture and large-scale production of biofilm-phenotype probiotics. However, the role of scaffolds containing indigestible carbohydrates in biofilm formation has not been studied. In this study, porous zein/cellulose composite scaffolds provided nitrogen sources and carbon sources simultaneously at the solid/liquid interfaces, being beneficial to the biofilm formation of Lactobacillus reuteri. The biofilms showed 2.1-17.4 times higher tolerances in different gastrointestinal conditions. In human fecal fermentation, the biofilms combined with the zein/cellulose composite scaffolds act as the "synbiotics" positively modulating the gut microbiota and the short-chain fatty acids (SCFAs), where biofilms provide probiotics and scaffolds provide prebiotics. The "synbiotics" show a more positive regulation ability than planktonic L. reuteri, presenting potential applications in gut health interventions. These results provide an understanding of the synergistic effects of biofilm-phenotype probiotics and indigestible carbohydrates contained in the "synbiotics" in gut microbiota modulation.
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Affiliation(s)
- Fei He
- Food Safety Key Laboratory of Zhejiang Province, School of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou 310018, China
| | - Xue-Ke Ma
- Food Safety Key Laboratory of Zhejiang Province, School of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou 310018, China
| | - Cheng-Kai Tu
- Food Safety Key Laboratory of Zhejiang Province, School of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou 310018, China
| | - Hui Teng
- Food Safety Key Laboratory of Zhejiang Province, School of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou 310018, China
| | - Xin Shao
- Food Safety Key Laboratory of Zhejiang Province, School of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou 310018, China
| | - Jie Chen
- Food Safety Key Laboratory of Zhejiang Province, School of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou 310018, China
| | - Meng-Xin Hu
- Food Safety Key Laboratory of Zhejiang Province, School of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou 310018, China.
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Jacquier EF, van de Wouw M, Nekrasov E, Contractor N, Kassis A, Marcu D. Local and Systemic Effects of Bioactive Food Ingredients: Is There a Role for Functional Foods to Prime the Gut for Resilience? Foods 2024; 13:739. [PMID: 38472851 DOI: 10.3390/foods13050739] [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: 01/12/2024] [Revised: 02/07/2024] [Accepted: 02/14/2024] [Indexed: 03/14/2024] Open
Abstract
Scientific advancements in understanding the impact of bioactive components in foods on the gut microbiota and wider physiology create opportunities for designing targeted functional foods. The selection of bioactive ingredients with potential local or systemic effects holds promise for influencing overall well-being. An abundance of studies demonstrate that gut microbiota show compositional changes that correlate age and disease. However, navigating this field, especially for non-experts, remains challenging, given the abundance of bioactive ingredients with varying levels of scientific substantiation. This narrative review addresses the current knowledge on the potential impact of the gut microbiota on host health, emphasizing gut microbiota resilience. It explores evidence related to the extensive gut health benefits of popular dietary components and bioactive ingredients, such as phytochemicals, fermented greens, fibres, prebiotics, probiotics, and postbiotics. Importantly, this review distinguishes between the potential local and systemic effects of both popular and emerging ingredients. Additionally, it highlights how dietary hormesis promotes gut microbiota resilience, fostering better adaptation to stress-a hallmark of health. By integrating examples of bioactives, this review provides insights to guide the design of evidence-based functional foods aimed at priming the gut for resilience.
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Affiliation(s)
| | - Marcel van de Wouw
- Department of Pediatrics, University of Calgary, Calgary, AB T2N 1N4, Canada
| | | | | | - Amira Kassis
- Neat Science, 1618 Chatel-Saint-Denis, Switzerland
| | - Diana Marcu
- School of Molecular Biosciences, College of Medical, Veterinary & Life Sciences, University of Glasgow, Glasgow G12 8QQ, UK
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De Bruyn F, Bonnet N, Baruchet M, Sabatier M, Breton I, Bourqui B, Jankovic I, Horcajada MN, Prioult G. Galacto-oligosaccharide preconditioning improves metabolic activity and engraftment of Limosilactobacillus reuteri and stimulates osteoblastogenesis ex vivo. Sci Rep 2024; 14:4329. [PMID: 38383774 PMCID: PMC10881571 DOI: 10.1038/s41598-024-54887-z] [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: 07/14/2023] [Accepted: 02/18/2024] [Indexed: 02/23/2024] Open
Abstract
A probiotic-related benefit for the host is inherently linked to metabolic activity and integration in the gut ecosystem. To facilitate these, probiotics are often combined with specific prebiotics in a synbiotic formulation. Here, we propose an approach for improving probiotic metabolic activity and engraftment. By cultivating the probiotic strain in the presence of a specific prebiotic (preconditioning), the bacterial enzymatic machinery is geared towards prebiotic consumption. Today, it is not known if preconditioning constitutes an advantage for the synbiotic concept. Therefore, we assessed the effects galacto-oligosaccharide (GOS) addition and preconditioning on GOS of Limosilactobacillus reuteri DSM 17938 on ex vivo colonic metabolic profiles, microbial community dynamics, and osteoblastogenesis. We show that adding GOS and preconditioning L. reuteri DSM 17938 act on different scales, yet both increase ex vivo short-chain fatty acid (SCFA) production and engraftment within the microbial community. Furthermore, preconditioned supernatants or SCFA cocktails mirroring these profiles decrease the migration speed of MC3T3-E1 osteoblasts, increase several osteogenic differentiation markers, and stimulate bone mineralization. Thus, our results demonstrate that preconditioning of L. reuteri with GOS may represent an incremental advantage for synbiotics by optimizing metabolite production, microbial engraftment, microbiome profile, and increased osteoblastogenesis.
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Affiliation(s)
- Florac De Bruyn
- Nestlé Research and Development, Nestléstrasse 3, 3510, Konolfingen, Switzerland.
| | - Nicolas Bonnet
- Nestlé Institute of Health Sciences, Nestlé Research, EPFL Innovation Park, Lausanne, Switzerland
| | - Michaël Baruchet
- Nestlé Institute of Health Sciences, Nestlé Research, EPFL Innovation Park, Lausanne, Switzerland
| | - Magalie Sabatier
- Nestlé Institute of Health Sciences, Route du Jorat 57, 1000, Lausanne, Switzerland
| | - Isabelle Breton
- Nestlé Institute of Health Sciences, Nestlé Research, EPFL Innovation Park, Lausanne, Switzerland
| | - Bertrand Bourqui
- Nestlé Research and Development, Nestléstrasse 3, 3510, Konolfingen, Switzerland
| | - Ivana Jankovic
- Nestlé Health Science, Route du Jorat 57, 1000, Lausanne, Switzerland
| | - Marie-Noëlle Horcajada
- Nestlé Institute of Health Sciences, Nestlé Research, EPFL Innovation Park, Lausanne, Switzerland
| | - Guénolée Prioult
- Nestlé Health Science, Route du Jorat 57, 1000, Lausanne, Switzerland
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Paterniti I, Scuderi SA, Cambria L, Nostro A, Esposito E, Marino A. Protective Effect of Probiotics against Pseudomonas aeruginosa Infection of Human Corneal Epithelial Cells. Int J Mol Sci 2024; 25:1770. [PMID: 38339047 PMCID: PMC10855269 DOI: 10.3390/ijms25031770] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2023] [Revised: 01/27/2024] [Accepted: 01/30/2024] [Indexed: 02/12/2024] Open
Abstract
Probiotic therapy needs consideration as an alternative strategy to prevent and possibly treat corneal infection. This study aimed to assess the preventive effect of Lactobacillus reuteri and Bifidobacterium longum subsp. infantis on reducing the infection of human corneal epithelial (HCE) cells caused by Pseudomonas aeruginosa. The probiotics' preventive effect against infection was evaluated in cell monolayers pretreated with each probiotic 1 h and 24 h prior to P. aeruginosa challenge followed by 1 h and 24 h of growth in combination. Cell adhesion, cytotoxicity, anti-inflammatory, and antinitrosative activities were evaluated. L. reuteri and B. longum adhered to HCE cells, preserved occludin tight junctions' integrity, and increased mucin production on a SkinEthicTM HCE model. Pretreatment with L. reuteri or B. longum significantly protected HCE cells from infection at 24 h, increasing cell viability at 110% (110.51 ± 5.15; p ≤ 0.05) and 137% (137.55 ± 11.97; p ≤ 0.05), respectively. Each probiotic showed anti-inflammatory and antinitrosative activities, reducing TNF-α level (p ≤ 0.001) and NOx amount (p ≤ 0.001) and reestablishing IL-10 level (p ≤ 0.001). In conclusion, this study demonstrated that L. reuteri and B. longum exert protective effects in the context of corneal infection caused by P. aeruginosa by restoring cell viability and modulating inflammatory cytokine release.
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Affiliation(s)
| | | | | | | | | | - Andreana Marino
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, 98166 Messina, Italy; (I.P.); (S.A.S.); (L.C.); (A.N.); (E.E.)
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Wu Y, Zhang X, Liu X, Li Y, Han D, Pi Y, Whitmore MA, Lu X, Zhang G, Zheng J, Wang J. Strain specificity of lactobacilli with promoted colonization by galactooligosaccharides administration in protecting intestinal barriers during Salmonella infection. J Adv Res 2024; 56:1-14. [PMID: 36894120 PMCID: PMC10834803 DOI: 10.1016/j.jare.2023.03.001] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Accepted: 03/03/2023] [Indexed: 03/09/2023] Open
Abstract
INTRODUCTION Galactooligosaccharides (GOS) are lactogenic prebiotics that exert health benefits by stimulating the growth of different Lactobacillus strains in the gastrointestinal (GI) tract. OBJECTIVES This study aimed to investigate the mechanism of action of different GOS-enriched lactobacilli in intestinal health. METHODS Piglets and mice were supplemented with GOS to identify specific enrichment of Lactobacillus. The protective effects of individual GOS-enriched lactobacilli were investigated in Salmonella-infected mice. Macrophage depletion and transcriptome analysis were further performed to assess the involvement of macrophages and the underlying mechanisms of individual lactobacilli. An in vitro cell co-culture system was also used to evaluate the anti-adhesive and anti-invasive activities of lactobacilli against Salmonella in epithelial cells. RESULTS GOS markedly increased the relative abundance of three lactobacilli including L. delbrueckii, L. johnsonii, and L. reuteri in both piglets and mice. Supplementation with GOS further alleviated Salmonella infection in mice. L. delbrueckii (ATCC®BAA 365™), but not L. johnsonii or L. reuteri, enhanced propionate production in the intestinal tract and ameliorated Salmonella-induced intestinal inflammation and barrier dysfunction by suppressing the JAK2-STAT3 signaling and M1 macrophage polarization. L. johnsonii (BNCC 186110), on the other hand, inhibited Salmonella adhesion and invasion of epithelial cells through competitive exclusion. However, L. reuteri (BNCC 186135) failed to protect mice against Salmonella infection. CONCLUSION GOS-enriched lactobacilli show a differential role in protecting against Salmonella-induced intestinal barrier dysfunction and inflammation. Our results provide novel insights into the mechanism of action of GOS and individual Lactobacillus strains in the control and prevention of intestinal inflammatory disorders.
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Affiliation(s)
- Yujun Wu
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
| | - Xiangyu Zhang
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
| | - Xiaoyi Liu
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
| | - Yi Li
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
| | - Dandan Han
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
| | - Yu Pi
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
| | - Melanie A Whitmore
- Department of Animal and Food Sciences, Oklahoma State University, Stillwater, OK 74078, USA
| | - Xingmiao Lu
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Guolong Zhang
- Department of Animal and Food Sciences, Oklahoma State University, Stillwater, OK 74078, USA
| | - Jinkai Zheng
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Junjun Wang
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China.
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Ebneali F, Shayestehpour M, Piroozmand A, Sedaghat H, Yazdani S, Fateminasab Z. In vitro evaluation of inhibitory effect of Lactobacillus reuteri supernatant on the replication of herpes simplex virus type 1 and expression of UL54, UL52 and UL27 genes. IRANIAN JOURNAL OF MICROBIOLOGY 2024; 16:90-96. [PMID: 38682053 PMCID: PMC11055432 DOI: 10.18502/ijm.v16i1.14877] [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] [Indexed: 05/01/2024]
Abstract
Background and Objectives Human herpes virus type 1 (HSV-1) is a neurotropic pathogen that is infected more than 70% of the world population. The increasing of viral resistance to antiviral drugs and the emergence of side effects has motivated researchers to study the use of probiotics as new antiviral agents. The aim of the present study was to study for the first time the potential antiviral activity of Lactobacillus reuteri (L. reuteri) supernatant against HSV-1. Materials and Methods After measuring the cytotoxicity of L. reuteri supernatant by MTT assay, 1:16 dilution of it was added to HeLa cells before and after HSV-1 infection, after 1.5 hours incubation with HSV-1, and simultaneously with HSV-1 infection. After 48 hours of incubation at 37°C, the viral titer and expression levels of UL54, UL52 and UL27 genes were measured by tissue culture infectious dose 50 (TCID50 ) and Real-Time PCR methods, respectively. Results HSV-1 titer in the treatment conditions before infection, incubation with HSV-1, simultaneously with infection and after infection was reduced by 0.42, 3.42, 1.83, and 0.83 log 10 TCID50/ml, respectively. When the bacterial supernatant was first incubated with the virus and then added to the cell, or when it was added simultaneously with the virus, the expression of the UL27, UL52, and UL54 genes decreased significantly (p<0.05). When the bacterial supernatant is added to the cell before or after virus infection, the expression of UL52 and UL54 genes does not change significantly (P>0.05). Conclusion The study findings indicated that the supernatant of L. reuteri has a potent anti-HSV-1 effect especially if it is incubated with the virus before inoculation into the cell. Its possible antiviral mechanism is to inhibit the virus by binding to it or changing the surface structure of the virus. Metabolites of L. reuteri can be considered as a novel inhibitor of HSV-1 infection.
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Affiliation(s)
- Faezeh Ebneali
- Department of Microbiology and Immunology, Faculty of Medicine, Kashan University of Medical Sciences, Kashan, Iran
| | - Mohammad Shayestehpour
- Department of Microbiology and Immunology, Faculty of Medicine, Kashan University of Medical Sciences, Kashan, Iran
- Autoimmune Diseases Research Center, Kashan University of Medical Sciences, Kashan, Iran
| | - Ahmad Piroozmand
- Department of Microbiology and Immunology, Faculty of Medicine, Kashan University of Medical Sciences, Kashan, Iran
- Autoimmune Diseases Research Center, Kashan University of Medical Sciences, Kashan, Iran
| | - Hossein Sedaghat
- Department of Microbiology and Immunology, Faculty of Medicine, Kashan University of Medical Sciences, Kashan, Iran
| | - Shaghayegh Yazdani
- Department of Microbiology, Faculty of Medical Sciences, Islamic Azad University, Tehran, Iran
- Research Center for Clinical Virology, Tehran University of Medical Sciences, Tehran, Iran
| | - Zahrasadat Fateminasab
- Department of Microbiology and Immunology, Faculty of Medicine, Kashan University of Medical Sciences, Kashan, Iran
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Siddi C, Cosentino S, Tamburini E, Concas L, Pisano MB, Ardu R, Deplano M, Follesa P, Maciocco E, Porcu P, Serra M, Pisu MG. Parental Social Isolation during Adolescence Alters Gut Microbiome in Rat Male Offspring. Biomolecules 2024; 14:172. [PMID: 38397408 PMCID: PMC10886888 DOI: 10.3390/biom14020172] [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: 11/20/2023] [Revised: 01/23/2024] [Accepted: 01/29/2024] [Indexed: 02/25/2024] Open
Abstract
Previous work from our laboratory demonstrated that parental stress, induced by social isolation starting at puberty, leads to behavioral, endocrine, and biochemical changes in the male, but not female, offspring (ISO-O) of Sprague-Dawley rats. Here, we report alterations in the gut microbiota composition of ISO-O vs. grouped-housed offspring (GH-O), although all animals received the same diet and were housed in the same conditions. Analysis of bacterial communities by next-generation sequencing (NGS) of 16S rRNA gene revealed alterations at family and order levels within the main phyla of Bacteroides, Proteobacteria, and Firmicutes, including an almost total deficit in Limosilactobacillus reuteri (formerly Lactobacillus reuteri) and a significant increase in Ligilactobacillus murinus (formerly Lactobacillus murinus). In addition, we found an increase in the relative abundance of Rhodospirillales and Clostridiales in the families of Lachnospiraceae and Ruminococcaceae, and Bacteroidales in the family of Prevotellaceae. Furthermore, we examined plasma levels of the proinflammatory cytokines interleukin-1-beta and tumor necrosis factor-alpha, which did not differ between the two groups, while corticosterone concentrations were significantly increased in ISO-O rats. Our findings suggest that adverse environmental conditions experienced by parents may have an impact on the likelihood of disease development in the subsequent generations.
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Affiliation(s)
- Carlotta Siddi
- Department of Life and Environmental Sciences, Section of Neuroscience and Anthropology, University of Cagliari, Monserrato, 09042 Cagliari, Italy; (C.S.); (L.C.); (P.F.)
| | - Sofia Cosentino
- Department of Medical Sciences and Public Health, University of Cagliari, Monserrato, 09042 Cagliari, Italy; (S.C.); (M.B.P.); (M.D.)
| | - Elena Tamburini
- Department of Biomedical Sciences, University of Cagliari, Monserrato, 09042 Cagliari, Italy; (E.T.); (R.A.)
| | - Luca Concas
- Department of Life and Environmental Sciences, Section of Neuroscience and Anthropology, University of Cagliari, Monserrato, 09042 Cagliari, Italy; (C.S.); (L.C.); (P.F.)
| | - Maria Barbara Pisano
- Department of Medical Sciences and Public Health, University of Cagliari, Monserrato, 09042 Cagliari, Italy; (S.C.); (M.B.P.); (M.D.)
| | - Riccardo Ardu
- Department of Biomedical Sciences, University of Cagliari, Monserrato, 09042 Cagliari, Italy; (E.T.); (R.A.)
| | - Maura Deplano
- Department of Medical Sciences and Public Health, University of Cagliari, Monserrato, 09042 Cagliari, Italy; (S.C.); (M.B.P.); (M.D.)
| | - Paolo Follesa
- Department of Life and Environmental Sciences, Section of Neuroscience and Anthropology, University of Cagliari, Monserrato, 09042 Cagliari, Italy; (C.S.); (L.C.); (P.F.)
| | - Elisabetta Maciocco
- Neuroscience Institute, National Research Council of Italy (CNR), Monserrato, 09042 Cagliari, Italy; (E.M.); (P.P.); (M.G.P.)
| | - Patrizia Porcu
- Neuroscience Institute, National Research Council of Italy (CNR), Monserrato, 09042 Cagliari, Italy; (E.M.); (P.P.); (M.G.P.)
| | - Mariangela Serra
- Department of Life and Environmental Sciences, Section of Neuroscience and Anthropology, University of Cagliari, Monserrato, 09042 Cagliari, Italy; (C.S.); (L.C.); (P.F.)
| | - Maria Giuseppina Pisu
- Neuroscience Institute, National Research Council of Italy (CNR), Monserrato, 09042 Cagliari, Italy; (E.M.); (P.P.); (M.G.P.)
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He Z, Li W, Yuan W, He Y, Xu J, Yuan C, Zhao C, Zhang N, Fu Y, Hu X. Lactobacillus reuteri inhibits Staphylococcus aureus-induced mastitis by regulating oxytocin releasing and gut microbiota in mice. FASEB J 2024; 38:e23383. [PMID: 38197892 DOI: 10.1096/fj.202301961r] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2023] [Revised: 11/23/2023] [Accepted: 12/07/2023] [Indexed: 01/11/2024]
Abstract
Mastitis is the most frequent disease of cows and has well-recognized detrimental effects on animal wellbeing and dairy farm profitability. With the advent of the postantibiotic era, alternative antibiotic agents, especially probiotics, have received increasing attention in the treatment of mastitis. Based on research showing that Lactobacillus reuteri (L. reuteri) has anti-inflammatory effects, this study explored the protective effects and mechanisms of L. reuteri against mastitis induced by Staphylococcus aureus (S. aureus) in mice. First, mice with S. aureus-induced mastitis were orally administered L. reuteri, and the inflammatory response in the mammary gland was observed. The results showed that L. reuteri significantly inhibited S. aureus-induced mastitis. Moreover, the concentration of oxytocin (OT) and protein expression of oxytocin receptor (OTR) were measured, and inhibition of OTR or vagotomy reversed the protective effect of L. reuteri or its culture supernatant (LCS) on S. aureus-induced mastitis. In addition, in mouse mammary epithelial cells (MMECs), OT inhibited the inflammation induced by S. aureus by inhibiting the protein expression of OTR. It was suggested that L. reuteri protected against S. aureus-induced mastitis by releasing OT. Furthermore, microbiological analysis showed that the composition of the microbiota was altered, and the relative abundance of Lactobacillus was significantly increased in gut and mammary gland after treatment with L. reuteri or LCS. In conclusion, our study found the L. reuteri inhibited the mastitis-induced by S. aureus via promoting the release of OT, and treatment with L. reuteri increased the abundance of Lactobacillus in both gut and mammary gland.
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Affiliation(s)
- Zhaoqi He
- Department of Breast Surgery, China-Japan Union Hospital, Jilin University, Changchun, China
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Jilin University, Changchun, China
| | - Wenjia Li
- Department of Breast Surgery, China-Japan Union Hospital, Jilin University, Changchun, China
| | - Weijie Yuan
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Jilin University, Changchun, China
| | - Yuhong He
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Jilin University, Changchun, China
| | - Jiawen Xu
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Jilin University, Changchun, China
| | - Chongshan Yuan
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Jilin University, Changchun, China
| | - Caijun Zhao
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Jilin University, Changchun, China
| | - Naisheng Zhang
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Jilin University, Changchun, China
| | - Yunhe Fu
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Jilin University, Changchun, China
| | - Xiaoyu Hu
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Jilin University, Changchun, China
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