Results 11 to 20 of about 39,705 (265)

Identifying Keystone Species in the Human Gut Microbiome from Metagenomic Timeseries using Sparse Linear Regression [PDF]

, 2014
Human associated microbial communities exert tremendous influence over human health and disease. With modern metagenomic sequencing methods it is possible to follow the relative abundance of microbes in a community over time.
Fisher, Charles K., Mehta, Pankaj
core   +17 more sources

Bacteroides fragilis meningitis [PDF]

Journal of Clinical Microbiology, 1985
A fatal case of pyogenic meningitis due to Bacteroides fragilis in a 6-year-old boy is reported. The need for processing cerebrospinal fluid of patients with underlying conditions such as chronic otitis media for recovery of both aerobes and anaerobes is discussed.
S A Jatto, K Afolabi, Tolu Odugbemi
openaire   +3 more sources

Bacteroides Fragilis in the gut microbiomes of Alzheimer’s disease activates microglia and triggers pathogenesis in neuronal C/EBPβ transgenic mice

Nature Communications, 2023
Gut dysbiosis contributes to Alzheimer’s disease (AD) pathogenesis, and Bacteroides strains are selectively elevated in AD gut microbiota. However, it remains unknown which Bacteroides species and how their metabolites trigger AD pathologies.
Yiyuan Xia, Yifan Xiao, Zhi-Hao Wang, Xia Liu, Ashfaqul M. Alam, John P. Haran, Beth A. McCormick, Xiji Shu, Xiaochuan Wang, Keqiang Ye   +9 more
doaj   +1 more source

Neuraminidase in Bacteroides fragilis [PDF]

Applied and Environmental Microbiology, 1983
A neuraminidase from Bacteroides fragilis was purified 542-fold by isoelectric focusing, adsorption chromatography on Affi-Gel 202, and gel filtration chromatography on Sephadex G-200. On isoelectric focusing the neuraminidase was resolved into three differently charged fractions with pI values of 6.8, 7.1, and 7.4.
G Andersson, C E Nord, J O Berg, L Lindqvist   +3 more
openaire   +3 more sources

Multi‐omics analyses reveal the interaction between colonic microbiota and host in Min and Yorkshire pigs

Animal Research and One Health, EarlyView., 2023
In the present study, we created the weight gain models with Min and Yorkshire pigs and conducted the metagenomics and metabolomics of colon contents and transcriptomics of colon tissue. Further, we revealed the characteristics and functions of the colonic microbiota in Min and Yorkshire pigs and analyzed their interactions with the host. Overall, this
Xiaoyu Huang, Huihui Li, Feng Cheng, Ligang Wang, Guoqing Cao, Lixian Wang, Lijun Shi   +6 more
wiley   +1 more source

Tetracycline transport in Bacteroides fragilis [PDF]

Antimicrobial Agents and Chemotherapy, 1980
In susceptible strain of Bacteroides fragilis, tetracycline uptake is biphasic. The initial phase is independent of adenosine 5'-triphosphate synthesis, which is coupled to fumarate reduction; this phase is not altered by expression of tetracycline resistance genes in a resistant strain.
FAYOLLE F, PRIVITERA, GAETANO PIERPAOLO, SEBALD M.   +2 more
openaire   +4 more sources

Phylogenetic analysis reveals an ancient gene duplication as the origin of the MdtABC efflux pump. [PDF]

, 2020
The efflux pumps from the Resistance-Nodulation-Division family, RND, are main contributors to intrinsic antibiotic resistance in Gram-negative bacteria. Among this family, the MdtABC pump is unusual by having two inner membrane components.
Górecki, Kamil, McEvoy, Megan M
core   +2 more sources

Cefoxitin inactivation by Bacteroides fragilis [PDF]

Antimicrobial Agents and Chemotherapy, 1983
We have surveyed the susceptibility of 1,575 clinical isolates of the Bacteroides fragilis group of organisms to cefoxitin and eight other antimicrobial agents. Eleven isolates, 0.7% of the total, were highly cefoxitin resistant and had minimum inhibitory concentrations of greater than or equal to 64 micrograms/ml. These isolates were also resistant to
G J Cuchural, F P Tally, P K Marsh, J W Mayhew, Nilda V. Jacobus   +4 more
openaire   +3 more sources

Enterotoxigenic and nontoxigenic Bacteroides fragilis strains isolated in Brazil

Memorias do Instituto Oswaldo Cruz, 2008
The presence of enterotoxigenic Bacteroides fragilis and nontoxigenic B. fragilis (NTBF) among 109 strains isolated from 1980-2008 in Brazil were investigated by PCR.
Karla R Miranda, Mariana F Dias, Priscilla LS Guimarães, Renata F Boente, Heidi Pauer, Priscila Z Ramos, Laís S Falcão, Eliane de O Ferreira, Ilana T Balassiano, Livia Q Ferreira, Joaquim dos Santos-Filho, Geraldo R de Paula, Eduardo NF Antunes, Katia ES Avelar, Regina MCP Domingues   +14 more
doaj   +1 more source

Intracellular Polysaccharide of Bacteroides fragilis [PDF]

Journal of General Microbiology, 1979
Formation of iodophilic polysaccharide (IPS) from glucose was demonstrated in 27 strains of Bacteroides fragilis. Synthesis was dependent on the glucose concentration of the medium, the pH and the growth phase. When glucose was in short supply the cellular polysaccharide was degraded rapidly at pH 4.5 to 6.5 and fatty acids accumulated in the medium ...
J. G. E. M. Lindnery, Jacomina A. A. Hoogkamp-Korstanje, N. M. De Vos, J. H. Marcelis   +3 more
openaire   +3 more sources