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Journal articles on the topic 'Ruminococcus'

Author: Grafiati

Published: 23 November 2024

Last updated: 31 July 2025

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1

Chan, W. W., and B. A. Dehority. "Production of Ruminococcus flavefaciens growth inhibitor(s) by Ruminococcus albus." Animal Feed Science and Technology 77, no. 1-2 (1999): 61–71. http://dx.doi.org/10.1016/s0377-8401(98)00234-x.

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Klieve, Athol V., Melvin T. Yokoyama, Robert J. Forster, Diane Ouwerkerk, Peter A. Bain, and Erin L. Mawhinney. "Naturally Occurring DNA Transfer System Associated with Membrane Vesicles in Cellulolytic Ruminococcus spp. of Ruminal Origin." Applied and Environmental Microbiology 71, no. 8 (2005): 4248–53. http://dx.doi.org/10.1128/aem.71.8.4248-4253.2005.

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ABSTRACT A genetic transformation system with similarities to those reported for gram-negative bacteria was found to be associated with membrane vesicles of the ruminal cellulolytic genus Ruminococcus. Double-stranded DNA was recovered from the subcellular particulate fraction of all the cellulolytic ruminococci examined. Electron microscopy revealed that the only particles present resembled membrane vesicles. The likelihood that the DNA was associated with membrane vesicles (also known to contain cellulosomes) was further supported by the adherence of the particles associated with the subcell

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3

Livaoğlu, Murat, Gürdal Yilmaz, Servet Kerimoğlu, Kemalettin Aydin, and Naci Karacal. "Necrotizing fasciitis with ruminococcus." Journal of Medical Microbiology 57, no. 2 (2008): 246–48. http://dx.doi.org/10.1099/jmm.0.47453-0.

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Necrotizing fasciitis is a life- and limb-threatening soft tissue infection. Due to its underlying predisposition and rapid progression, treatment should be started quickly using antibiotherapy and surgical intervention. Although necrotizing fasciitis is mainly caused by streptococci and staphylococci, it may also be polymicrobial. Other peptostreptococci have been reported as necrotizing fasciitis agents in the literature, though we encountered no cases of necrotizing fasciitis caused by Ruminococcus productus. Here, we describe a case of necrotizing fasciitis caused by R. productus, a Gram-p

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4

Marcille, F., A. Gomez, P. Joubert, et al. "Distribution of Genes Encoding the Trypsin-Dependent Lantibiotic Ruminococcin A among Bacteria Isolated from Human Fecal Microbiota." Applied and Environmental Microbiology 68, no. 7 (2002): 3424–31. http://dx.doi.org/10.1128/aem.68.7.3424-3431.2002.

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ABSTRACT Fourteen bacterial strains capable of producing a trypsin-dependent antimicrobial substance active against Clostridium perfringens were isolated from human fecal samples of various origins (from healthy adults and children, as well as from adults with chronic pouchitis). Identification of these strains showed that they belonged to Ruminococcus gnavus, Clostridium nexile, and Ruminococcus hansenii species or to new operational taxonomic units, all from the Clostridium coccoides phylogenetic group. In hybridization experiments with a probe specific for the structural gene encoding the t

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Ni, Yen-Hsuan, and Huey-Huey Chua. "198: GUT RUMINOCOCCUS BROMII ALLEVIATED RUMINOCOCCUS GNAVUSINDUCED ALLERGIC DYSBIOSIS VIA MODULATING SEROTONIN HOMEOSTASIS." Gastroenterology 169, no. 1 (2025): S—56. https://doi.org/10.1016/s0016-5085(25)01084-4.

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6

WILLEMS, A., and M. D. COLLINS. "NOTES: Phylogenetic Analysis of Ruminococcus flavefaciens, the Type Species of the Genus Ruminococcus, Does Not Support the Reclassification of Streptococcus hansenii and Peptostreptococcus productus as Ruminococci." International Journal of Systematic Bacteriology 45, no. 3 (1995): 572–75. http://dx.doi.org/10.1099/00207713-45-3-572.

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7

Champion, Kathleen M., Carla T. Helaszek, and Bryan A. White. "Analysis of antibiotic susceptibility and extrachromosomal DNA content of Ruminococcus albus and Ruminococcus flavefaciens." Canadian Journal of Microbiology 34, no. 10 (1988): 1109–15. http://dx.doi.org/10.1139/m88-196.

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Seventeen Ruminococcus albus and Ruminococcus flavefaciens strains have been screened for naturally occurring antibiotic resistance, as determined by zones of inhibition from antibiotic disks. These strains were also examined for extrachromosomal DNA content. All strains screened are resistant to low levels (10–200 μg/mL) of streptomycin. In contrast to the previously reported data, we have found that R. flavefaciens C-94 is now susceptible to both kanamycin and tetracycline. However, R. flavefaciens FD-1 is not susceptible to kanamycin (minimum inhibitory concentration (MIC) = 40 μg/mL). Furt

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8

Dabard, J., C. Bridonneau, C. Phillipe, et al. "Ruminococcin A, a New Lantibiotic Produced by aRuminococcus gnavus Strain Isolated from Human Feces." Applied and Environmental Microbiology 67, no. 9 (2001): 4111–18. http://dx.doi.org/10.1128/aem.67.9.4111-4118.2001.

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ABSTRACT When cultivated in the presence of trypsin, the Ruminococcus gnavus E1 strain, isolated from a human fecal sample, was able to produce an antibacterial substance that accumulated in the supernatant. This substance, called ruminococcin A, was purified to homogeneity by reverse-phase chromatography. It was shown to be a 2,675-Da bacteriocin harboring a lanthionine structure. The utilization of Edman degradation and tandem mass spectrometry techniques, followed by DNA sequencing of part of the structural gene, allowed the identification of 21 amino acid residues. Similarity to other bact

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9

Anam, Moh Sofi’ul, Andriyani Astuti, Budi Prasetyo Widyobroto, Gunawan ., and Ali Agus. "Effects of Combined Organic Selenium and Zinc Supplementation on In Vitro Ruminal Enzyme Activities and Relative Populations of Several Bacterial Species." World's Veterinary Journal 14, no. 2 (2024): 178–83. http://dx.doi.org/10.54203/scil.2024.wvj22.

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Selenium (Se) and zinc (Zn) are essential animal microminerals. Combining Se and Zn (Se-Zn) as a feed additive in its influence on rumen fermentation patterns is still very limited, so further investigation is needed. The present study explored the supplementation impact of combined Se-Zn from organic sources on rumen enzyme activity and relative abundance of several bacterial species through an in vitro method. Five treatments, each with six replicates were used in the study. The first group treated without Se and Zn supplementation (T0, control), the second group treated with 0.3 ppm Se + 60

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10

Chassard,, Christophe, Eve Delmas,, Céline Robert,, Paul A. Lawson, and Annick Bernalier-Donadille. "Ruminococcus champanellensis sp. nov., a cellulose-degrading bacterium from human gut microbiota." International Journal of Systematic and Evolutionary Microbiology 62, no. 1 (2012): 138–43. http://dx.doi.org/10.1099/ijs.0.027375-0.

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A strictly anaerobic, cellulolytic strain, designated 18P13T, was isolated from a human faecal sample. Cells were Gram-positive non-motile cocci. Strain 18P13T was able to degrade microcrystalline cellulose but the utilization of soluble sugars was restricted to cellobiose. Acetate and succinate were the major end products of cellulose and cellobiose fermentation. 16S rRNA gene sequence analysis revealed that the isolate belonged to the genus Ruminococcus of the family Ruminococcaceae. The closest phylogenetic relative was the ruminal cellulolytic strain Ruminococcus flavefaciens ATCC 19208T (

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11

Gaffney, James, Jordan Embree, Sean Gilmore, and Mallory Embree. "RUMiNOCOCCUS BOViS sp. nov., a novel species of amylolytic RUMiNOCOCCUS isolated from the rumen of a dairy cow." International Journal of Systematic and Evolutionary Microbiology 71, no. 8 (2021): 1–7. https://doi.org/10.1099/ijsem.0.004924.

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Gaffney, James, Embree, Jordan, Gilmore, Sean, Embree, Mallory (2021): RUMiNOCOCCUS BOViS sp. nov., a novel species of amylolytic RUMiNOCOCCUS isolated from the rumen of a dairy cow. International Journal of Systematic and Evolutionary Microbiology (004924) 71 (8): 1-7, DOI: 10.1099/ijsem.0.004924, URL: http://dx.doi.org/10.1099/ijsem.0.004924

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12

Chen, Junqin, David M. Stevenson, and Paul J. Weimer. "Albusin B, a Bacteriocin from the Ruminal Bacterium Ruminococcus albus 7 That Inhibits Growth of Ruminococcus flavefaciens." Applied and Environmental Microbiology 70, no. 5 (2004): 3167–70. http://dx.doi.org/10.1128/aem.70.5.3167-3170.2004.

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ABSTRACT An ∼32-kDa protein (albusin B) that inhibited growth of Ruminococcus flavefaciens FD-1 was isolated from culture supernatants of Ruminococcus albus 7. Traditional cloning and gene-walking PCR techniques revealed an open reading frame (albB) encoding a protein with a predicted molecular mass of 32,168 Da. A BLAST search revealed two homologs of AlbB from the unfinished genome of R. albus 8 and moderate similarity to LlpA, a recently described 30-kDa bacteriocin from Pseudomonas sp. strain BW11M1.

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Præsteng, K., R. Mackie, I. Cann, S. Mathiesen, and M. Sundset. "Development of a signature probe targeting the 16S-23S rRNA internal transcribed spacer of a ruminal Ruminococcus flavefaciens isolate from reindeer." Beneficial Microbes 2, no. 1 (2011): 47–55. http://dx.doi.org/10.3920/bm2010.0044.

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The cellulolytic Ruminococcus flavefaciens has previously been introduced into the ruminant rumen to increase microbial degradation of plant cell wall carbohydrates. The functional effect of an introduced bacterium depends on its ability to establish in the digestive tract, and signature probes can be used as a tool to track and quantify introduced strains. The purpose of this current study was to develop an oligonucleotide signature probe targeting the 16S-23S rRNA internal transcribed spacer (ITS) of a putative probiotic cellulolytic isolate (R. flavefaciens strain 8/94-32) from the rumen of

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14

Julliand, Veronique, Albane de Vaux, Liliane Millet, and Gerard Fonty. "Identification of Ruminococcus flavefaciens as the Predominant Cellulolytic Bacterial Species of the Equine Cecum." Applied and Environmental Microbiology 65, no. 8 (1999): 3738–41. http://dx.doi.org/10.1128/aem.65.8.3738-3741.1999.

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ABSTRACT Detection and quantification of cellulolytic bacteria with oligonucleotide probes showed that Ruminococcus flavefaciens was the predominant species in the pony and donkey cecum. Fibrobacter succinogenes and Ruminococcus albus were present at low levels. Four isolates, morphologically resembling R. flavefaciens, differed from ruminal strains by their carbohydrate utilization and their end products of cellobiose fermentation.

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15

Balty, Clémence, Alain Guillot, Laura Fradale, et al. "Ruminococcin C, an anti-clostridial sactipeptide produced by a prominent member of the human microbiota Ruminococcus gnavus." Journal of Biological Chemistry 294, no. 40 (2019): 14512–25. http://dx.doi.org/10.1074/jbc.ra119.009416.

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16

Kobayashi, Yasuo, Hidenori Taguchi, Takashi N. Goto, Satoshi Koike, and Kunio Ohmiya. "Expression and export of aRuminococcus albuscellulase inButyrivibrio fibrisolvensthrough the use of an alternative gene promoter and signal sequence." Canadian Journal of Microbiology 49, no. 6 (2003): 375–82. http://dx.doi.org/10.1139/w03-050.

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Ruminococcal cellulase (Ruminococcus albus F-40 endoglucanase EgI) was successfully expressed in Butyrivibrio fibrisolvens OB156C, using the erm promoter from pAMβ1. A newly identified signal peptide coding region of xynA from B. fibrisolvens 49 allowed efficient translocation of the foreign EgI into the extracellular fraction. First, B. fibrisolvens xynA with or without its own putative signal peptide (XynA SP) coding region was cloned into a shuttle vector to transform B. fibrisolvens OB156C. Both plasmids caused a 2- to 2.4-fold increase in xylanase activity. The transformant expressing Xyn

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17

Chiumento, Steve, Clarisse Roblin, Sylvie Kieffer-Jaquinod, et al. "Ruminococcin C, a promising antibiotic produced by a human gut symbiont." Science Advances 5, no. 9 (2019): eaaw9969. http://dx.doi.org/10.1126/sciadv.aaw9969.

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A major public health challenge today is the resurgence of microbial infections caused by multidrug-resistant strains. Consequently, novel antimicrobial molecules are actively sought for development. In this context, the human gut microbiome is an under-explored potential trove of valuable natural molecules, such as the ribosomally-synthesized and post-translationally modified peptides (RiPPs). The biological activity of the sactipeptide subclass of RiPPs remains under-characterized. Here, we characterize an antimicrobial sactipeptide, Ruminococcin C1, purified from the caecal contents of rats

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18

Helaszek, C. T., and B. A. White. "Cellobiose uptake and metabolism by Ruminococcus flavefaciens." Applied and Environmental Microbiology 57, no. 1 (1991): 64–68. http://dx.doi.org/10.1128/aem.57.1.64-68.1991.

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19

KAWAI, Shuji, Hiroyuki HONDA, Takaaki TANASE, Masahito TAYA, Shinji IIJIMA, and Takeshi KOBAYASHI. "Molecular cloning of Ruminococcus albus cellulase gene." Agricultural and Biological Chemistry 51, no. 1 (1987): 59–63. http://dx.doi.org/10.1271/bbb1961.51.59.

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20

Laughlin, Colin, Alex McPherson, Surya Pandey, et al. "Examining the antitumorigenic effects of Ruminococcus gnavus." Journal of Immunology 212, no. 1_Supplement (2024): 0419_5091. http://dx.doi.org/10.4049/jimmunol.212.supp.0419.5091.

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Abstract Melanoma is one of the most commonly occurring cancers in the world, with increasing occurrence over the past several decades. Common treatment regimens for melanoma include immune checkpoint inhibitor (ICI) therapy, which enhances interferon-γ production in CD8 T cells (Tc1). Despite showing efficacy in some patients, a majority of melanoma patients are resistant to ICI therapy. Prior studies have demonstrated the ability of the gut microbiota to impact Tc1 antitumor responses and ICI therapy efficacy. In analyzing top gut bacteria enriched in ICI-responders, Ruminococcus gnavus (R.

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21

Vereecke, Lars, and Dirk Elewaut. "Ruminococcus on the horizon in arthritic disease." Nature Reviews Rheumatology 13, no. 10 (2017): 574–76. http://dx.doi.org/10.1038/nrrheum.2017.130.

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22

Atasoglu, Cengiz, C. James Newbold, and R. John Wallace. "Incorporation of [15N]Ammonia by the Cellulolytic Ruminal Bacteria Fibrobacter succinogenesBL2, Ruminococcus albus SY3, and Ruminococcus flavefaciens 17." Applied and Environmental Microbiology 67, no. 6 (2001): 2819–22. http://dx.doi.org/10.1128/aem.67.6.2819-2822.2001.

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ABSTRACT The origin of cell nitrogen and amino acid nitrogen during growth of ruminal cellulolytic bacteria in different growth media was investigated by using 15NH3. At high concentrations of peptides (Trypticase, 10 g/liter) and amino acids (15.5 g/liter), significant amounts of cell nitrogen ofFibrobacter succinogenes BL2 (51%), Ruminococcus flavefaciens 17 (43%), and Ruminococcus albusSY3 (46%) were derived from non-NH3-N. With peptides at 1 g/liter, a mean of 80% of cell nitrogen was from NH3. More cell nitrogen was formed from NH3 during growth on cellobiose compared with growth on cellu

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23

Chen, Jiahao, Yu Wang, Hang Yao, Yuxin Li, and Hong Song. "Uncovering a Causal Connection between Gut Microbiota and Six Thyroid Diseases: A Two-Sample Mendelian Randomization Study." Biology 13, no. 9 (2024): 714. http://dx.doi.org/10.3390/biology13090714.

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Background: Recent studies have established associations between the gut microbiota (GM) and thyroid diseases (TDs). However, their causal relationships remain elusive. Methods: To investigate this causality, we conducted a two-sample Mendelian randomization (MR) analysis using genome-wide association study (GWAS) data from MiBioGen and FinnGen, with GM as the exposure and six TDs as outcomes. Results: We identified 32 microbial taxa linked to the risk of six TDs. The Clostridium innocuum group, Ruminiclostridium5, and Lachnoclostridium exhibited protective effects against nontoxic diffuse goi

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Liu, C., S. M. Finegold, Y. Song, and P. A. Lawson. "Reclassification of Clostridium coccoides, Ruminococcus hansenii, Ruminococcus hydrogenotrophicus, Ruminococcus luti, Ruminococcus productus and Ruminococcus schinkii as Blautia coccoides gen. nov., comb. nov., Blautia hansenii comb. nov., Blautia hydrogenotrophica comb. nov., Blautia luti comb. nov., Blautia producta comb. nov., Blautia schinkii comb. nov. and description of Blautia wexlerae sp. nov., isolated from human faeces." INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY 58, no. 8 (2008): 1896–902. http://dx.doi.org/10.1099/ijs.0.65208-0.

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25

Firrman, Jenni, LinShu Liu, Gustavo Arango Argoty, et al. "Analysis of Temporal Changes in Growth and Gene Expression for Commensal Gut Microbes in Response to the Polyphenol Naringenin." Microbiology Insights 11 (January 1, 2018): 117863611877510. http://dx.doi.org/10.1177/1178636118775100.

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In this study, the effect of the flavanone naringenin on the growth and genetic expression of the commensal gut microbes, Ruminococcus gauvreauii, Bifidobacterium catenulatum, and Enterococcus caccae, was analyzed. Analysis of growth curves revealed that Ruminococcus gauvreauii was unaffected by naringenin, Bifidobacterium catenulatum was slightly enhanced by naringenin, and Enterococcus caccae was severely inhibited by naringenin. Changes in genetic expression due to naringenin were determined using single-molecule RNA sequencing. Analysis revealed the following responses to naringenin: Rumin

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26

Koike, Satoshi, and Yasuo Kobayashi. "Development and use of competitive PCR assays for the rumen cellulolytic bacteria: Fibrobacter succinogenes, Ruminococcus albus and Ruminococcus flavefaciens." FEMS Microbiology Letters 204, no. 2 (2001): 361–66. http://dx.doi.org/10.1111/j.1574-6968.2001.tb10911.x.

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27

EZAKI, T., N. LI, Y. HASHIMOTO, H. MIURA, and H. YAMAMOTO. "16S Ribosomal DNA Sequences of Anaerobic Cocci and Proposal of Ruminococcus hansenii comb. nov. and Ruminococcus productus comb. nov." International Journal of Systematic Bacteriology 44, no. 1 (1994): 130–36. http://dx.doi.org/10.1099/00207713-44-1-130.

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EZAKI, T., N. LI, Y. HASHIMOTO, H. MIURA, and H. YAMAMOTO. "16s Ribosomal DNA Sequences of Anaerobic Cocci and Proposal of Ruminococcus hansenii comb. nov. and Ruminococcus productus comb. nov." International Journal of Systematic Bacteriology 44, no. 3 (1994): 598. http://dx.doi.org/10.1099/00207713-44-3-598.

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Rodriguez V., Fernando, Tito Efraín Diaz M., Giselle A. Mackenzie, Luz Estella Guativa, and Germán Afanador. "Aislamiento, Patrón de Fermentación de Carbohidratos y Caracterización Morfológica de Bacterias Celulolíticas del Rumen de Bovinos Alimentados con Heno de Raigrás en Colombia." Corpoica Ciencia y Tecnología Agropecuaria 1, no. 1 (1996): 23. http://dx.doi.org/10.21930/rcta.vol1_num1_art:148.

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<p>En el Centro Nacional de Investigaciones “Tibaitatá” de Corpoica, localizado en un ecosistema trópical a una altura de 2550 m.s.n.m, se adelantó un estudio para caracterizar la población de bacterias celulolíticas ruminales de bovinos. Cinco cepas de bacterias anaerobias celulolíticas fueron aisladas a partir del contenido ruminal de bovinos alimentados con heno de raigrás (Lolium multijlorum). Las pruebas bioquímicas, el patrón de fermentación de carbohidratos y la caracterización morfológica, incluyendo los estudios de microscopía electrónica de transmisión de la membrana celular y

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30

Crost, E. H., E. H. Ajandouz, C. Villard, P. A. Geraert, A. Puigserver, and M. Fons. "Ruminococcin C, a new anti-Clostridium perfringens bacteriocin produced in the gut by the commensal bacterium Ruminococcus gnavus E1." Biochimie 93, no. 9 (2011): 1487–94. http://dx.doi.org/10.1016/j.biochi.2011.05.001.

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Nagamine, T., R. I. Aminov, M. Sugiura, K. Ogata, K. Tajima, and Y. Benno. "Method for Preparation of RNA from Ruminococcus albus." BioTechniques 22, no. 3 (1997): 406–8. http://dx.doi.org/10.2144/97223bm06.

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Thurston, B., K. A. Dawson, and H. J. Strobel. "Pentose utilization by the ruminal bacterium Ruminococcus albus." Applied and Environmental Microbiology 60, no. 4 (1994): 1087–92. http://dx.doi.org/10.1128/aem.60.4.1087-1092.1994.

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Kim, Jong Nam, Emily DeCrescenzo Henriksen, Isaac K. O. Cann, and Roderick I. Mackie. "Nitrogen Utilization and Metabolism in Ruminococcus albus 8." Applied and Environmental Microbiology 80, no. 10 (2014): 3095–102. http://dx.doi.org/10.1128/aem.00029-14.

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ABSTRACTThe model rumenFirmicutesorganismRuminococcus albus8 was grown using ammonia, urea, or peptides as the sole nitrogen source; growth was not observed with amino acids as the sole nitrogen source. Growth ofR. albus8 on ammonia and urea showed the same growth rate (0.08 h−1) and similar maximum cell densities (for ammonia, the optical density at 600 nm [OD600] was 1.01; and for urea, the OD600was 0.99); however, growth on peptides resulted in a nearly identical growth rate (0.09 h−1) and a lower maximum cell density (OD600= 0.58). To identify differences in gene expression and enzyme acti

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Doerner, K. "β-Glucanase expression by Ruminococcus flavefaciens FD-1". FEMS Microbiology Letters 93, № 2 (1992): 147–53. http://dx.doi.org/10.1016/0378-1097(92)90520-x.

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Kim, Min-Soo, Seong Woon Roh, and Jin-Woo Bae. "Ruminococcus faecis sp. nov., isolated from human faeces." Journal of Microbiology 49, no. 3 (2011): 487–91. http://dx.doi.org/10.1007/s12275-011-0505-7.

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Titécat, Marie, Frédéric Wallet, Marie-Hélène Vieillard, René J. Courcol, and Caroline Loïez. "Ruminococcus gnavus: An unusual pathogen in septic arthritis." Anaerobe 30 (December 2014): 159–60. http://dx.doi.org/10.1016/j.anaerobe.2014.10.001.

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37

Odenyo, A. A., R. I. Mackie, G. C. Fahey, and B. A. White. "Degradation of wheat straw and alkaline hydrogen peroxide-treated wheat straw by Ruminococcus albus 8 and Ruminococcus flavefaciens FD-1." Journal of Animal Science 69, no. 2 (1991): 819. http://dx.doi.org/10.2527/1991.692819x.

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Krause, Denis O., Brian P. Dalrymple, Wendy J. Smith, Roderick I. Mackie, and Christopher S. McSweeney. "16S rDNA sequencing of Ruminococcus albus and Ruminococcus flavefaciens: design of a signature probe and its application in adult sheep." Microbiology 145, no. 7 (1999): 1797–807. http://dx.doi.org/10.1099/13500872-145-7-1797.

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Maes, Michael, Asara Vasupanrajit, Ketsupar Jirakran, et al. "Exploration of the Gut Microbiome in Thai Patients with Major Depressive Disorder Shows a Specific Bacterial Profile with Depletion of the Ruminococcus Genus as a Putative Biomarker." Cells 12, no. 9 (2023): 1240. http://dx.doi.org/10.3390/cells12091240.

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Maes et al. (2008) published the first paper demonstrating that major depressive disorder (MDD) is accompanied by abnormalities in the microbiota–gut–brain axis, as evidenced by elevated serum IgM/IgA to lipopolysaccharides (LPS) of Gram-negative bacteria, such as Morganella morganii and Klebsiella Pneumoniae. The latter aberrations, which point to increased gut permeability (leaky gut), are linked to activated neuro-immune and oxidative pathways in MDD. To delineate the profile and composition of the gut microbiome in Thai patients with MDD, we examined fecal samples of 32 MDD patients and 37

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Zhang, Q., and M. Zhi. "P1241 Distinct gut microbiota in Crohn's Disease between inflammatory B1 and stricturing B2 phenotype." Journal of Crohn's and Colitis 18, Supplement_1 (2024): i2195. http://dx.doi.org/10.1093/ecco-jcc/jjad212.1371.

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Abstract Background The gut microbiome represents a promising avenue to elucidate distinct underlying pathophysiology in Crohn's disease (CD).Our aim was to evaluate the composition of the microbiota in Inflammatory B1 and Stricturing B2 Phenotype. Methods We performed 16S ribosomal RNA sequencing on stool samples of 108 patients (64 B1 and 44 B2) included in the Chinese CD cohort and 58 health controls without any inflammatory disorder, in order to explore the structural composition of gut microbiota in different phenotype of CD. Results Comparison of gut microbiota between patients with CD a

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Lawson, Paul A., and Sydney M. Finegold. "Reclassification of Ruminococcus obeum as Blautia obeum comb. nov." International Journal of Systematic and Evolutionary Microbiology 65, Pt_3 (2015): 789–93. http://dx.doi.org/10.1099/ijs.0.000015.

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During our previous studies we reclassified Clostridium coccoides and a number of misclassified ruminococci into a novel genus Blautia within the family Lachnospiraceae . However, the Rules of the Bacteriological Code currently require that the types of all species and subspecies with new names (including new combinations) be deposited in two different collections in two different countries. The type strain of Ruminococcus obeum was, at that period in time, only deposited in the American Type Culture Collection (ATCC) and a second independent deposit, as required by the Code, was not available

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Akhremchuk, K. V., K. Y. Skapavets, A. E. Akhremchuk, N. P. Kirsanava, A. V. Sidarenka, and L. N. Valentovich. "Gut microbiome of healthy people and patients with hematological malignancies in Belarus." Microbiology Independent Research Journal (MIR Journal) 9, no. 1 (2022): 18–30. http://dx.doi.org/10.18527/2500-2236-2022-9-1-18-30.

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Gut microbiota plays an important role in human health and the development of various diseases. We describe the intestinal microbiome of 31 healthy individuals and 29 patients who have hematological malignancies from Belarus. Bacteria that belong to Faecalibacterium, Blautia, Bacteroides, Ruminococcus, Bifidobacterium, Prevotella, Lactobacillus, and Alistipes genera were predominant in the gut of healthy people. Based on the dominant microbiota species, two enterotype-like clusters that are driven by Bacteroides and Blautia, respectively, were identified. A significant decrease in alpha divers

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Wang, Yayun, Xiaolong Ye, Dafa Ding, and Yibing Lu. "Characteristics of the intestinal flora in patients with peripheral neuropathy associated with type 2 diabetes." Journal of International Medical Research 48, no. 9 (2020): 030006052093680. http://dx.doi.org/10.1177/0300060520936806.

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Objective To study the characteristics of the intestinal flora in patients with diabetic peripheral neuropathy (DPN) and analyze the association between the intestinal flora and clinical indicators. Methods We classified 80 subjects into three groups: patients with DPN (n = 45), patients type 2 diabetes without DPN (n = 21), and healthy controls (n = 14). The intestinal flora composition was compared among the three groups, and the correlation between the intestinal flora and clinical indicators was analyzed. Results At the phylum level, the richness of Firmicutes and Actinobacteria was elevat

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Ohmiya, K., M. Shirai, Y. Kurachi, and S. Shimizu. "Isolation and properties of beta-glucosidase from Ruminococcus albus." Journal of Bacteriology 161, no. 1 (1985): 432–34. http://dx.doi.org/10.1128/jb.161.1.432-434.1985.

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Morris, E. Jane. "Characteristics of the adhesion of Ruminococcus albus to cellulose." FEMS Microbiology Letters 51, no. 2-3 (1988): 113–17. http://dx.doi.org/10.1111/j.1574-6968.1988.tb02980.x.

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Hansen, S. G. K., M. N. Skov, and U. S. Justesen. "Two Cases of Ruminococcus gnavus Bacteremia Associated with Diverticulitis." Journal of Clinical Microbiology 51, no. 4 (2013): 1334–36. http://dx.doi.org/10.1128/jcm.03382-12.

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Graziani, F., A. Pujol, C. Nicoletti, et al. "Ruminococcus gnavus E1 modulates mucin expression and intestinal glycosylation." Journal of Applied Microbiology 120, no. 5 (2016): 1403–17. http://dx.doi.org/10.1111/jam.13095.

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MIYAZAKI, KOHJI, TSUNEO HINO, and AND HISAO ITABASHI. "Effects of extracellular pH on the intracellular pH and membrane potential of cellulolytic ruminal bacteria, Ruminococcus albus, Ruminococcus flavefaciens, and Fibrobacter succinogenes." Journal of General and Applied Microbiology 38, no. 6 (1992): 567–73. http://dx.doi.org/10.2323/jgam.38.567.

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Noh, Hwayoung, Hwan-Hee Jang, Gichang Kim, et al. "Taxonomic Composition and Diversity of the Gut Microbiota in Relation to Habitual Dietary Intake in Korean Adults." Nutrients 13, no. 2 (2021): 366. http://dx.doi.org/10.3390/nu13020366.

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We investigated associations of habitual dietary intake with the taxonomic composition and diversity of the human gut microbiota in 222 Koreans aged 18–58 years in a cross-sectional study. Gut microbiota data were obtained by 16S rRNA gene sequencing on DNA extracted from fecal samples. The habitual diet for the previous year was assessed by a food frequency questionnaire. After multivariable adjustment, intake of several food groups including vegetables, fermented legumes, legumes, dairy products, processed meat, and non-alcoholic beverages were associated with major phyla of the gut microbio

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Salas-Perez, Francisca, Taís Silveira Assmann, Omar Ramos-Lopez, J. Alfredo Martínez, Jose Ignacio Riezu-Boj, and Fermín I. Milagro. "Crosstalk between Gut Microbiota and Epigenetic Markers in Obesity Development: Relationship between Ruminococcus, BMI, and MACROD2/SEL1L2 Methylation." Nutrients 15, no. 7 (2023): 1550. http://dx.doi.org/10.3390/nu15071550.

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Changes in gut microbiota composition and in epigenetic mechanisms have been proposed to play important roles in energy homeostasis, and the onset and development of obesity. However, the crosstalk between epigenetic markers and the gut microbiome in obesity remains unclear. The main objective of this study was to establish a link between the gut microbiota and DNA methylation patterns in subjects with obesity by identifying differentially methylated DNA regions (DMRs) that could be potentially regulated by the gut microbiota. DNA methylation and bacterial DNA sequencing analysis were performe

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