Results 51 to 60 of about 147,965 (298)

Human gut Bacteroides capture vitamin B12 via cell surface-exposed lipoproteins. [PDF]

, 2018
Human gut Bacteroides use surface-exposed lipoproteins to bind and metabolize complex polysaccharides. Although vitamins and other nutrients are also essential for commensal fitness, much less is known about how commensal bacteria compete with each other
Barry, Natasha A, Degnan, Patrick H, Folta-Stogniew, Ewa, Goodman, Andrew L, Schofield, Whitman B, Wexler, Aaron G   +5 more
core  

Gene transfer in the GI tract and oral cavity [PDF]

, 2000
Gene transfer is important in spreading antibiotic resistance and other traits such as virulence factors. In this review the molecular mechanisms of gene transfer are outlined and the biological consequences of bacterial gene transfer in the GI tract and
Mullany, P
core   +1 more source

Superoxide dismutase in Bacteroides fragilis and related Bacteroides species [PDF]

Journal of Clinical Microbiology, 1977
Superoxide dismutase (SOD) activity was demonstrated in cell-free extracts of Bacteroides fragilis, Bacteroides vulgatus, Bacteroides distasonis, Bacteroides ovatus, and Bacteroides thetaiotaomicron. The strains were grown under anaerobic conditions in Trypticase soy broth, and the specific activity of SOD in the extracts was, in most strains, higher ...
J, Carlsson, J, Wrethén, G, Beckman
openaire   +2 more sources

Evolutionarily divergent DUF4465 domains have a common vitamin B12‐binding function

FEBS Open Bio, EarlyView.
We show that DUF4465 family proteins, widespread across bacteria from gut microbiomes, hydrothermal vents, and soil, share a common vitamin B12‐binding function. These augmented β‐jellyroll proteins bind vitamin B12 via extended loops. Our findings establish sequence‐diverse DUF4465 proteins as a widespread class of B12‐binding proteins, highlighting ...
Charlea Clarke, Michal Banasik, Rokas Juodeikis, Martin J. Warren, Richard W. Pickersgill   +4 more
wiley   +1 more source

Metabolic changes associated with polysaccharide utilization reduce susceptibility to some β-lactams in Bacteroides thetaiotaomicron

mSphere
Antibiotic therapy alters bacterial abundance and metabolism in the gut microbiome, leading to dysbiosis and opportunistic infections. Bacteroides thetaiotaomicron (Bth) is both a commensal in the gut and an opportunistic pathogen in other body sites ...
Rachael Nilson, Swathi Penumutchu, Francesco S. Pagano, Peter Belenky   +3 more
doaj   +1 more source

THE BIOLOGICAL AND STRUCTURAL CHARACTERIZATION OF TRANSFERABLE BACTEROIDES R PLASMIDS [PDF]

, 1979
In this literature review I will briefly describe the general biology of transferable antibiotic resistance in bacteria, the genetic elements involved (plasmids) and several specific plasmid associated phenotypes.
Welch, Rodney A.
core   +1 more source

Prebiotic effects of wheat Arabinoxylan related to the increase in Bifidobacteria, Roseburia and bacteroides/Prevotella in diet-induced obese mice [PDF]

, 2011
Background: Alterations in the composition of gut microbiota - known as dysbiosis - has been proposed to contribute to the development of obesity, thereby supporting the potential interest of nutrients targeting the gut with beneficial effect for host ...
Neyrinck, Audrey M, Possemiers, Sam, Druart, Celine, Van de Wiele, Tom, De Backer, Fabienne, Cani, Patrice D, Larondelle, Yvan, Delzenne, Nathalie M   +7 more
core   +2 more sources

Opinion: Gavage Administration of MXene as a Route‐Specific Alternative to Intravenous Injection into the Bloodstream of Laboratory Animals for Reducing Systemic Nanotoxicity Risks in Immunosuppression and Post‐Transplantation Models with Bile Acid Modification

Advanced Healthcare Materials, EarlyView.
Recent studies reported immunosuppressive properties of specific MXene nanomaterials. Their intravenous injection into the bloodstream of laboratory animals has been a common delivery method to suppress systemic inflammation and prevent transplant rejection.
Alireza Rafieerad, M. Akif Rahman, Ahmad Amiri   +2 more
wiley   +1 more source

Gut Bacteroides act in a microbial consortium to cause susceptibility to severe malaria

Nature Communications, 2023
Malaria is caused by Plasmodium species and remains a significant cause of morbidity and mortality globally. Gut bacteria can influence the severity of malaria, but the contribution of specific bacteria to the risk of severe malaria is unknown.
Rabindra K. Mandal, Anita Mandal, Joshua E. Denny, Ruth Namazii, Chandy C. John, Nathan W. Schmidt   +5 more
doaj   +1 more source

Comparative prebiotic activity of mixtures of cereal grain polysaccharides [PDF]

, 2019
The main components of the non-starch polysaccharide (NSP) fraction of wheat flour are arabinoxylan (AX) and β-glucan. These are also present in other cereal grains, but their proportions vary with AX being the major component in wheat and rye and β ...
A Barcenilla, AA Salyers, AH Franks, aP Govers, AW Walker, BP Garry, C Grootaert, CE Rycroft, CE Rycroft, D JMares, GB Fincher, GL Hold, GR Gibson, GR Gibson, HJ Kim, HJM Harmsen, I Zanotti, J Singh, JH Cummings, JH Cummings, L Haskå, L Johansson, LB Bindels, M Blaut, M Siljeström, ML Stewart, PR Shewry, PS Langendijk, S Bereswill, S Fukuda, S Vanderhaeghen, SA Hughes, SA Hughes, SE Pryde, T Steer, V Van Craeyveld, W Li, W Manz, Y Wang   +38 more
core   +3 more sources