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Associations between intestinal lactic acid bacteria species and feeding habits of zoo animals. 动物园动物肠道乳酸菌种类与喂养习惯之间的关系
Microbiome research reports Pub Date : 2024-06-17 eCollection Date: 2024-01-01 DOI: 10.20517/mrr.2024.08
Masanori Horie, Tomoki Ohno, Hitoshi Iwahashi, Maiko Umemura, Kazutoshi Murotomi
{"title":"Associations between intestinal lactic acid bacteria species and feeding habits of zoo animals.","authors":"Masanori Horie, Tomoki Ohno, Hitoshi Iwahashi, Maiko Umemura, Kazutoshi Murotomi","doi":"10.20517/mrr.2024.08","DOIUrl":"https://doi.org/10.20517/mrr.2024.08","url":null,"abstract":"<p><p><b>Aim:</b> Lactic acid bacteria are among the most important bacteria in the intestinal flora and often have beneficial effects on the host. It is known that the bacteria that compose the intestinal flora are influenced by the feeding habits of host animals, but there was a lack of knowledge about lactic acid bacteria. Therefore, also considering the use of select strains as probiotics, this study investigated the relationship between the feeding habits of zoo animals and intestinal <i>Lactobacillaceae</i> species. <b>Methods:</b> Lactic acid bacteria belonging to the family Lactobacillaceae were isolated and identified from the feces of 20 zoo animal species (5 carnivores, 4 herbivores, 7 piscivores, and 4 omnivores). Isolates were identified by the homology of the 16S rRNA gene sequence. In addition, the fecal flora of host animals was evaluated by the 16S rRNA gene amplicon sequencing. <b>Results:</b> The types of <i>Lactobacillaceae</i> species were shown to vary depending on the feeding habits of host animals. <i>Ligilactobacillus salivarius</i> (<i>L. salivarius</i>) and <i>Ligilactobacillus saerimneri</i> (<i>L. saerimneri</i>) were isolated from the feces of carnivores. Whereas <i>Ligilactobacillus equi</i> (<i>L. equi</i>), <i>Limosilactobacillus gorillae</i>, <i>Ligilactobacillus hayakitensis</i> and <i>L. salivarius</i> were isolated from the feces of herbivores. These <i>Lactobacillaceae</i> species were not found in the feces of piscivores. Instead, <i>Enterococcus</i> were frequently found in piscivores. The fecal flora also differed according to the feeding habits of host animals; at the phylum level, Bacillota was predominant in all animals; on the other hand, herbivores tended to have a higher proportion of Bacteroidota than carnivores, and piscivores tended to have a higher proportion of Proteobacteria. <b>Conclusion:</b> Lactic acid bacteria differ among animal species in a manner dependent on the hosts' feeding habits.</p>","PeriodicalId":94376,"journal":{"name":"Microbiome research reports","volume":"3 3","pages":"35"},"PeriodicalIF":0.0,"publicationDate":"2024-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11480720/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142485031","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Supplementation with a cranberry extract favors the establishment of butyrogenic guilds in the human fermentation SHIME system 补充蔓越莓提取物有利于在人类发酵SHIME系统中建立丁原行会
Microbiome research reports Pub Date : 2024-06-14 DOI: 10.20517/mrr.2024.17
Valentina Cattero, Charlène Roussel, Jacob Lessard-Lord, Denis Roy, Yves Desjardins
{"title":"Supplementation with a cranberry extract favors the establishment of butyrogenic guilds in the human fermentation SHIME system","authors":"Valentina Cattero, Charlène Roussel, Jacob Lessard-Lord, Denis Roy, Yves Desjardins","doi":"10.20517/mrr.2024.17","DOIUrl":"https://doi.org/10.20517/mrr.2024.17","url":null,"abstract":"Background: Proanthocyanidins (PAC) and oligosaccharides from cranberry exhibit multiple bioactive health properties and persist intact in the colon post-ingestion. They display a complex bidirectional interaction with the microbiome, which varies based on both time and specific regions of the gut; the nature of this interaction remains inadequately understood. Therefore, we aimed to investigate the impact of cranberry extract on gut microbiota ecology and function.\u0000 Methods: We studied the effect of a cranberry extract on six healthy participants over a two-week supplementation period using the ex vivo artificial fermentation system TWIN-M-SHIME to replicate luminal and mucosal niches of the ascending and transverse colon.\u0000 Results: Our findings revealed a significant influence of cranberry extract supplementation on the gut microbiota ecology under ex vivo conditions, leading to a considerable change in bacterial metabolism. Specifically, Bifidobacterium adolescentis (B. adolescentis ) flourished in the mucus of the ascending colon, accompanied by a reduced adhesion of Proteobacteria . The overall bacterial metabolism shifted from acetate to propionate and, notably, butyrate production following PAC supplementation. Although there were variations in microbiota modulation among the six donors, the butyrogenic effect induced by the supplementation remained consistent across all individuals. This metabolic shift was associated with a rise in the relative abundance of several short-chain fatty acid (SCFA)-producing bacterial genera and the formation of a consortium of key butyrogenic bacteria in the mucus of the transverse colon.\u0000 Conclusions: These observations suggest that cranberry extract supplementation has the potential to modulate the gut microbiota in a manner that may promote overall gut health.","PeriodicalId":94376,"journal":{"name":"Microbiome research reports","volume":"55 8","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141343988","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Pangenomic analysis identifies correlations between Akkermansia species and subspecies and human health outcomes 庞基因组分析确定了 Akkermansia 物种和亚种与人类健康结果之间的相关性
Microbiome research reports Pub Date : 2024-06-11 DOI: 10.20517/mrr.2024.09
Katherine D. Mueller, M. E. Panzetta, Lauren Davey, Jessica R. McCann, John F. Rawls, Gilberto E. Flores, Raphael H. Valdivia
{"title":"Pangenomic analysis identifies correlations between Akkermansia species and subspecies and human health outcomes","authors":"Katherine D. Mueller, M. E. Panzetta, Lauren Davey, Jessica R. McCann, John F. Rawls, Gilberto E. Flores, Raphael H. Valdivia","doi":"10.20517/mrr.2024.09","DOIUrl":"https://doi.org/10.20517/mrr.2024.09","url":null,"abstract":"Aim: Akkermansia are common members of the human gastrointestinal microbiota. The prevalence of these mucophilic bacteria, especially Akkermansia muciniphila (A. muciniphila ), correlates with immunological and metabolic health. The genus Akkermansia in humans includes species with significantly larger genomes than A. muciniphila , leading us to postulate that this added genetic content may influence how they impact human metabolic and immunological health.\u0000 Methods: We conducted a pangenomic analysis of 234 Akkermansia complete or near-complete genomes. We also used high-resolution species and subspecies assignments to reanalyze publicly available metagenomic datasets to determine if there are relationships between Akkermansia species and A. muciniphila clades with various disease outcomes.\u0000 Results: Analysis of genome-wide average nucleotide identity, 16S rRNA gene identity, conservation of core Akkermansia genes, and analysis of the fatty acid composition of representative isolates support the partitioning of the genus Akkermansia into several species. In addition, A. muciniphila sensu stricto , the most prevalent Akkermansia species in humans, should be subdivided into two subspecies. For a pediatric cohort, we observed species-specific correlations between Akkermansia abundance with baseline obesity or after various interventions. For inflammatory bowel disease cohorts, we identified a decreased abundance of Akkermansia in patients with ulcerative colitis or Crohn’s disease, which was species and subspecies-dependent. In patients undergoing immune checkpoint inhibitor therapies for non-small cell lung carcinoma, we observed a significant association between one A. muciniphila subspecies and survival outcomes.\u0000 Conclusion: Our findings suggest that the prevalence of specific Akkermansia species and/or subspecies can be crucial in evaluating their association with human health, particularly in different disease contexts, and is an important consideration for their use as probiotics.","PeriodicalId":94376,"journal":{"name":"Microbiome research reports","volume":"78 20","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141359740","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A pilot case-control study on the fecal microbiota of pediatric functional abdominal pain-not otherwise specified and the role of early life stress 关于小儿功能性腹痛(未特殊说明)的粪便微生物群与早期生活压力的作用的病例对照试验研究
Microbiome research reports Pub Date : 2024-06-04 DOI: 10.20517/mrr.2023.75
Nize Otaru, Benoît Pugin, Serafina Plüss, I. Hojsak, Christian Braegger, Christophe Lacroix
{"title":"A pilot case-control study on the fecal microbiota of pediatric functional abdominal pain-not otherwise specified and the role of early life stress","authors":"Nize Otaru, Benoît Pugin, Serafina Plüss, I. Hojsak, Christian Braegger, Christophe Lacroix","doi":"10.20517/mrr.2023.75","DOIUrl":"https://doi.org/10.20517/mrr.2023.75","url":null,"abstract":"Background: Gut microbial features and the role of early life stress in pediatric functional abdominal pain-not otherwise specified (FAP-NOS) have never been investigated before. Here, we hypothesize that early life stress is more prevalent in FAP-NOS compared to healthy controls and that fecal microbial profiles and related metabolites differ between groups.\u0000 Methods: In an international multicenter case-control study, FAP-NOS patients (n = 40) were compared to healthy controls (n = 55). Stool samples and demographic and clinical data including early life traumatic events and antibiotics treatments were collected from children aged four to twelve years. Fecal microbial profiles were assessed with 16S rRNA gene amplicon sequencing. Microbial metabolite concentrations in fecal supernatant, including short-chain fatty acids and amino acids, were detected via liquid chromatography.\u0000 Results: Microbial richness was increased in FAP-NOS compared to healthy controls and microbial composition (unweighted UniFrac) differed between groups. Three distinct amplicon sequencing variants and two distinct species were enriched in FAP-NOS compared to controls, with no observed changes at higher taxonomic levels. No differences in microbial metabolites and early life stress were observed between groups.\u0000 Conclusion: The presented hypothesis could not be proven, with no observed differences in occurrence of early life stress, and fecal microbial metabolic profiles between pediatric FAP-NOS and healthy controls. Pediatric FAP-NOS patients exhibited mild differences in the fecal microbial community compared with controls. Further large-scale studies with high-resolution techniques are warranted to address the biological relevance of present observations.","PeriodicalId":94376,"journal":{"name":"Microbiome research reports","volume":"269 40‐45","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141386720","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Probing interspecies metabolic interactions within a synthetic binary microbiome using genome-scale modeling. 利用基因组尺度建模,探索合成二元微生物组内物种间的代谢相互作用。
Microbiome research reports Pub Date : 2024-05-27 eCollection Date: 2024-01-01 DOI: 10.20517/mrr.2023.70
Kiumars Badr, Q Peter He, Jin Wang
{"title":"Probing interspecies metabolic interactions within a synthetic binary microbiome using genome-scale modeling.","authors":"Kiumars Badr, Q Peter He, Jin Wang","doi":"10.20517/mrr.2023.70","DOIUrl":"https://doi.org/10.20517/mrr.2023.70","url":null,"abstract":"<p><p><b>Aim:</b> Metabolic interactions within a microbial community play a key role in determining the structure, function, and composition of the community. However, due to the complexity and intractability of natural microbiomes, limited knowledge is available on interspecies interactions within a community. In this work, using a binary synthetic microbiome, a methanotroph-photoautotroph (M-P) coculture, as the model system, we examined different genome-scale metabolic modeling (GEM) approaches to gain a better understanding of the metabolic interactions within the coculture, how they contribute to the enhanced growth observed in the coculture, and how they evolve over time. <b>Methods:</b> Using batch growth data of the model M-P coculture, we compared three GEM approaches for microbial communities. Two of the methods are existing approaches: SteadyCom, a steady state GEM, and dynamic flux balance analysis (DFBA) Lab, a dynamic GEM. We also proposed an improved dynamic GEM approach, DynamiCom, for the M-P coculture. <b>Results:</b> SteadyCom can predict the metabolic interactions within the coculture but not their dynamic evolutions; DFBA Lab can predict the dynamics of the coculture but cannot identify interspecies interactions. DynamiCom was able to identify the cross-fed metabolite within the coculture, as well as predict the evolution of the interspecies interactions over time. <b>Conclusion:</b> A new dynamic GEM approach, DynamiCom, was developed for a model M-P coculture. Constrained by the predictions from a validated kinetic model, DynamiCom consistently predicted the top metabolites being exchanged in the M-P coculture, as well as the establishment of the mutualistic N-exchange between the methanotroph and cyanobacteria. The interspecies interactions and their dynamic evolution predicted by DynamiCom are supported by ample evidence in the literature on methanotroph, cyanobacteria, and other cyanobacteria-heterotroph cocultures.</p>","PeriodicalId":94376,"journal":{"name":"Microbiome research reports","volume":"3 3","pages":"31"},"PeriodicalIF":0.0,"publicationDate":"2024-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11480724/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142485034","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Faecalibacterium prausnitzii A2-165 metabolizes host- and media-derived chemicals and induces transcriptional changes in colonic epithelium in GuMI human gut microphysiological system 普氏粪杆菌 A2-165 在 GuMI 人体肠道微生理系统中代谢宿主和培养基衍生的化学物质并诱导结肠上皮细胞的转录变化
Microbiome research reports Pub Date : 2024-05-21 DOI: 10.20517/mrr.2024.14
Yu-Ja Huang, Caroline A. Lewis, Charles W. Wright, Kirsten Schneider, John Kemmitt, David L. Trumper, David T Breault, Omer Yilmaz, L. Griffith, Jianbo Zhang
{"title":"Faecalibacterium prausnitzii A2-165 metabolizes host- and media-derived chemicals and induces transcriptional changes in colonic epithelium in GuMI human gut microphysiological system","authors":"Yu-Ja Huang, Caroline A. Lewis, Charles W. Wright, Kirsten Schneider, John Kemmitt, David L. Trumper, David T Breault, Omer Yilmaz, L. Griffith, Jianbo Zhang","doi":"10.20517/mrr.2024.14","DOIUrl":"https://doi.org/10.20517/mrr.2024.14","url":null,"abstract":"Aim: Recently, a GuMI gut microphysiological system has been established to coculture oxygen-intolerant Faecalibacterium prausnitzii (F. prausnitzii ) A2-165 with organoids-derived primary human colonic epithelium. This study aims to test if this GuMI system applies to different donors with different healthy states and uses metabolomics to reveal the role of gut microbes in modulating host- and diet-derived molecules in the gut lumen.\u0000 Methods: Organoids-derived colonic monolayers were generated from an uninflamed region of diverticulitis, ulcerative colitis, and Crohn’s disease patients and then integrated into the GuMI system to coculture with F. prausnitzii A2-165 for 2 to 4 days. Apical media was collected for metabolomic analysis. Targeted metabolomics was performed to profile 169 polar chemicals under three conditions: conventional static culture without bacteria, GuMI without bacteria, and GuMI with F. prausnitzii . The barrier function of monolayers was measured using transepithelial resistance.\u0000 Results: GuMI successfully cocultured patient-derived monolayers and F. prausnitzii for up to 4 days, with active bacterial growth. Introducing flow and oxygen gradient significantly increases the barrier function, while exposure to F. prausnitzii slightly increases the barrier function. Targeted metabolomics screened 169 compounds and detected 76 metabolites, of which 70 significantly differed between at least two conditions. F. prausnitzii significantly modulates the levels of nucleosides, nucleobases, and amino acids on the apical side. Further analysis suggests that F. prausnitzii changes the mRNA level of 260 transcription factor genes in colonic epithelial cells.\u0000 Conclusion: The GuMI physiomimetic system can maintain the coculture of F. prausnitzii and colonic epithelium from different donors. Together with metabolomics, we identified the modulation of F. prausnitzii in extracellular chemicals and colonic epithelial cell transcription in coculture with human colonic epithelium, which may reflect its function in gut lumen in vivo .","PeriodicalId":94376,"journal":{"name":"Microbiome research reports","volume":"30 4","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141118018","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Probiotics, prebiotics, synbiotics and other microbiome-based innovative therapeutics to mitigate obesity and enhance longevity via the gut-brain axis 益生菌、益生菌、合成益生菌和其他以微生物组为基础的创新疗法,通过肠道-大脑轴减轻肥胖并提高寿命
Microbiome research reports Pub Date : 2024-05-17 DOI: 10.20517/mrr.2024.05
Jacqueline Boyajian, Paromita Islam, Ahmed Abosalha, Sabrina Schaly, Rahul Thareja, Amal Kassab, Karan Arora, Madison Santos, Cedrique Shum-Tim, Satya Prakash
{"title":"Probiotics, prebiotics, synbiotics and other microbiome-based innovative therapeutics to mitigate obesity and enhance longevity via the gut-brain axis","authors":"Jacqueline Boyajian, Paromita Islam, Ahmed Abosalha, Sabrina Schaly, Rahul Thareja, Amal Kassab, Karan Arora, Madison Santos, Cedrique Shum-Tim, Satya Prakash","doi":"10.20517/mrr.2024.05","DOIUrl":"https://doi.org/10.20517/mrr.2024.05","url":null,"abstract":"The global prevalence of obesity currently exceeds 1 billion people and is accompanied by an increase in the aging population. Obesity and aging share many hallmarks and are leading risk factors for cardiometabolic disease and premature death. Current anti-obesity and pro-longevity pharmacotherapies are limited by side effects, warranting the development of novel therapies. The gut microbiota plays a major role in human health and disease, with a dysbiotic composition evident in obese and aged individuals. The bidirectional communication system between the gut and the central nervous system, known as the gut-brain axis, may link obesity to unhealthy aging. Modulating the gut with microbiome-targeted therapies, such as biotics, is a novel strategy to treat and/or manage obesity and promote longevity. Biotics represent material derived from living or once-living organisms, many of which have therapeutic effects. Pre-, pro-, syn- and post-biotics may beneficially modulate gut microbial composition and function to improve obesity and the aging process. However, the investigation of biotics as next-generation therapeutics has only just begun. Further research is needed to identify therapeutic biotics and understand their mechanisms of action. Investigating the function of the gut-brain axis in obesity and aging may lead to novel therapeutic strategies for obese, aged and comorbid (e.g., sarcopenic obese) patient populations. This review discusses the interrelationship between obesity and aging, with a particular emphasis on the gut microbiome, and presents biotics as novel therapeutic agents for obesity, aging and related disease states.","PeriodicalId":94376,"journal":{"name":"Microbiome research reports","volume":"4 7","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140964251","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Analysis of the fermentation kinetics and gut microbiota modulatory effect of dried chicory root reveals the impact of the plant-cell matrix rationalizing its conversion in the distal colon. 对菊苣干根的发酵动力学和肠道微生物群调节作用的分析揭示了植物细胞基质对其在远端结肠中合理转化的影响。
Microbiome research reports Pub Date : 2024-04-26 eCollection Date: 2024-01-01 DOI: 10.20517/mrr.2024.04
Marie-Luise Puhlmann, Ember van de Rakt, Evangelia N Kerezoudi, Ignacio Rangel, Robert J Brummer, Hauke Smidt, Frederik S Kaper, Willem M de Vos
{"title":"Analysis of the fermentation kinetics and gut microbiota modulatory effect of dried chicory root reveals the impact of the plant-cell matrix rationalizing its conversion in the distal colon.","authors":"Marie-Luise Puhlmann, Ember van de Rakt, Evangelia N Kerezoudi, Ignacio Rangel, Robert J Brummer, Hauke Smidt, Frederik S Kaper, Willem M de Vos","doi":"10.20517/mrr.2024.04","DOIUrl":"https://doi.org/10.20517/mrr.2024.04","url":null,"abstract":"<p><p><b>Aim:</b> The cell matrix of plant foods has received little attention in prebiotic fiber research. We aimed to understand the impact of the plant cell matrix in dried chicory root on its breakdown in the human gut to explain its reported beneficial effects on gut and metabolic health. <b>Methods:</b> We applied <i>in vitro</i> digestion and fermentation models together with an <i>ex vivo</i> gut barrier integrity model. Plant cell matrix intactness in the upper gastrointestinal tract was investigated by scanning electron microscopy. Colonic breakdown of inulin, and chicory root cubes and powder was assessed by gut microbiota analysis using 16S rRNA gene amplicon sequencing and determining the kinetics of changes in pH, gas, and short-chain fatty acid (SCFA) production. Finally, effects on gut barrier integrity were explored by exposing colonic biopsies to fermentation supernatants in an Ussing chamber model. <b>Results:</b> The plant cell matrix of dried chicory root cubes remained intact throughout upper gastrointestinal transit. Dried chicory root fermentation resulted in higher final relative abundances of pectin-degrading <i>Monoglobus</i> and butyrate-producing <i>Roseburia</i> spp. compared to inulin and a seven-fold increase in <i>Bifidobacterium</i> spp. in donors where these species were present. Dried chicory root cubes yielded similar total SCFAs but higher final butyrate levels than chicory root powder or isolated inulin with less gas produced. No uniform but donor-specific effects of fermentation supernatants on the maintenance of gut barrier integrity were detected. <b>Conclusion:</b> The intact plant cell matrix of dried chicory root affected its colonic breakdown kinetics and microbiota, underpinning its beneficial effect <i>in vivo</i>.</p>","PeriodicalId":94376,"journal":{"name":"Microbiome research reports","volume":"3 3","pages":"28"},"PeriodicalIF":0.0,"publicationDate":"2024-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11485554/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142485029","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
An exploratory in silico analysis of bacteriocin gene clusters in the urobiome 对尿生物群中细菌素基因簇的探索性硅学分析
Microbiome research reports Pub Date : 2024-03-27 DOI: 10.20517/mrr.2023.78
Jennifer Jones, C. Murphy, R. Sleator, E. P. Culligan
{"title":"An exploratory in silico analysis of bacteriocin gene clusters in the urobiome","authors":"Jennifer Jones, C. Murphy, R. Sleator, E. P. Culligan","doi":"10.20517/mrr.2023.78","DOIUrl":"https://doi.org/10.20517/mrr.2023.78","url":null,"abstract":"Background: The role of the urobiome in health and disease remains an understudied area compared to the rest of the human microbiome. Enhanced culturing techniques and next-generation sequencing technologies have identified the urobiome as an untapped source of potentially novel antimicrobials. The aim of this study was to screen the urobiome for genes encoding bacteriocin production.\u0000 Methods: The genomes of 181 bacterial urobiome isolates were screened in silico for the presence of bacteriocin gene clusters using the bacteriocin mining tool BAGEL4 and secondary metabolite screening tool antiSMASH7.\u0000 Results: From these isolates, an initial 263 areas of interest were identified, manually annotated, and evaluated for potential bacteriocin gene clusters. This resulted in 32 isolates containing 80 potential bacteriocin gene clusters, of which 72% were identified as class II, 13.75% as class III, 8.75% as class I, and 5% as unclassified bacteriocins.\u0000 Conclusion: Overall, 53 novel variants were discovered, including nisin, gassericin, ubericin, and colicins.","PeriodicalId":94376,"journal":{"name":"Microbiome research reports","volume":"47 5","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140377161","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Past, present, and future of microbiome-based therapies 基于微生物组的疗法的过去、现在和未来
Microbiome research reports Pub Date : 2024-03-18 DOI: 10.20517/mrr.2023.80
Pilar Manrique, Ignacio Montero, Marta Fernandez-Gosende, Noelia Martinez, Claudio Hidalgo Cantabrana, D. Ríos-Covian
{"title":"Past, present, and future of microbiome-based therapies","authors":"Pilar Manrique, Ignacio Montero, Marta Fernandez-Gosende, Noelia Martinez, Claudio Hidalgo Cantabrana, D. Ríos-Covian","doi":"10.20517/mrr.2023.80","DOIUrl":"https://doi.org/10.20517/mrr.2023.80","url":null,"abstract":"Technological advances in studying the human microbiome in depth have enabled the identification of microbial signatures associated with health and disease. This confirms the crucial role of microbiota in maintaining homeostasis and the host health status. Nowadays, there are several ways to modulate the microbiota composition to effectively improve host health; therefore, the development of therapeutic treatments based on the gut microbiota is experiencing rapid growth. In this review, we summarize the influence of the gut microbiota on the development of infectious disease and cancer, which are two of the main targets of microbiome-based therapies currently being developed. We analyze the two-way interaction between the gut microbiota and traditional drugs in order to emphasize the influence of gut microbial composition on drug effectivity and treatment response. We explore the different strategies currently available for modulating this ecosystem to our benefit, ranging from 1st generation intervention strategies to more complex 2nd generation microbiome-based therapies and their regulatory framework. Lastly, we finish with a quick overview of what we believe is the future of these strategies, that is 3rd generation microbiome-based therapies developed with the use of artificial intelligence (AI) algorithms.","PeriodicalId":94376,"journal":{"name":"Microbiome research reports","volume":"59 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140232405","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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