Results 71 to 80 of about 15,598 (206)

A Microbial Lipid‐ATP Synthase Axis Fuels NK Cell Antitumor Activity

Advanced Science, EarlyView.
This study focuses on the mechanism by which gut microbiota‐derived outer membrane vesicles (OMVs) regulate NK cell antitumor activity. B. intestinalis is identified to decrease extra‐intestinal tumor growth via its OMVs enriched in sphingosine (SP).
Kaiyuan Yu, Xinyu Sun, Wanxia Ma, Jianming Yang, Xuan Sun, Lisong Zhang, Yumeng Liu, Tianshu Ren, Qi Wang, Jingyu Wang, Xiao Li, Xianping Peng, Liu Yang, Junqiang Lv, Zhi Yao, Zhi‐Song Zhang, Quan Wang   +16 more
wiley   +1 more source

Transglycosylation Properties of a Novel α-1,4-Glucanotransferase from Bacteroides thetaiotaomicron and Its Application in Developing an α-Glucosidase-Specific Inhibitor

Journal of Chemistry, 2018
In this study, α-glucanotransferase from Bacteroides thetaiotaomicron was expressed in Escherichia coli and characterized. Conserved amino-acid sequence alignment showed that Bacteroides thetaiotaomicron α-glucanotransferase (BtαGTase) belongs to the ...
Hye-Jeong Choi, Dam-Seul Ko, Na-Ri Kim, Woo-Jae Choung, Ye-Seul Koo, Da-Woon Jeong, Jae-Hoon Shim   +6 more
doaj   +1 more source

Bacteroides thetaiotaomicron Fosters the Growth of Butyrate-Producing Anaerostipes caccae in the Presence of Lactose and Total Human Milk Carbohydrates

Microorganisms, 2020
The development of infant gut microbiota is strongly influenced by nutrition. Human milk oligosaccharides (HMOSs) in breast milk selectively promote the growth of glycan-degrading microbes, which lays the basis of the microbial network. In this study, we
Loo Wee Chia, Marko Mank, Bernadet Blijenberg, Steven Aalvink, Roger S. Bongers, Bernd Stahl, Jan Knol, Clara Belzer   +7 more
doaj   +1 more source

GUT MICROBIOTA AND CARDIOMETABOLIC RISK FACTORS IN CORONARY ARTERY DISEASE PATIENTS WITH ATRIAL FIBRILLATION

Клінічна та профілактична медицина, 2023
The aim: To estimate gut microbiota composition peculiarities in patients with coronary artery disease (CAD) and atrial fibrillation (AF) and to evaluate their connections with known cardiometabolic risk factors (CRF).
Iryna O. Melnychuk
doaj   +1 more source

Receptor uptake arrays for vitamin B12, siderophores and glycans shape bacterial communities

, 2017
Molecular variants of vitamin B12, siderophores and glycans occur. To take up variant forms, bacteria may express an array of receptors. The gut microbe Bacteroides thetaiotaomicron has three different receptors to take up variants of vitamin B12 and 88 ...
Frank, Steven A.
core   +1 more source

First national survey of antibiotic susceptibility of the Bacteroides fragilis group: emerging resistance to carbapenems in Argentina [PDF]

, 2012
The antibiotic susceptibility rates of 363 clinical Bacteroides fragilis group isolates collected from 17 centers in Argentina during the period from 2006 to 2009 were as follows: piperacillin-tazobactam, 99%; ampicillin-sulbactam, 92%; cefoxitin, 72 ...
Anaerobe Surveillance Team, Bianchini, Hebe, Carloni, Graciela, Castello, Liliana, Cejas, Daniela, Di Martino, Ana, Fernández Canigia, Liliana, Gutkind, Gabriel Osvaldo, Legaria, María C., Litterio, Mirta, Predari, Silvia C., Radice, Marcela Alejandra, Rollet, Raquel, Rossetti, Adelaida   +13 more
core   +1 more source

Enzymatic Basis for the Oxidative Branch of Aromatic Amino Acid Fermentation Leading to p‐cresol Formation

Advanced Science, EarlyView.
In anaerobic bacteria, tyrosine serves as an electron donor in the oxidative Stickland fermentation branch, generating p‐hydroxyphenylacetate, ATP and reduced ferredoxin for decarboxylation into p‐cresol. ABSTRACT The phenolic metabolite p‐cresol is a byproduct of tyrosine fermentation by certain strictly anaerobic bacteria, including the human gut ...
Li Jiang, Yifeng Wei, Xumei Liu, Dazhi Liu, Zhenyu Liu, Yang Tong, Jinyu Yin, Ankanahalli N. Nanjaraj Urs, Meining Xing, Mark A. Harrison, Chuyuan Zhang, Sheng Yang, Yunzi Luo, Ee Lui Ang, Huimin Zhao, Yan Zhang   +15 more
wiley   +1 more source

Transfection of the Anaerobe Bacteroides thetaiotaomicron with Phage DNA [PDF]

Journal of General Microbiology, 1977
SUMMARY: The properties of a Bacteroides thetaiotaomicron phage, β1, are described. Phenol-extracted phage β1 DNA transfects Ca2+-treated B. thetaiotaomicron cells and transfection is not limited to a particular stage in the growth cycle. An obligatory step in the transfection procedure is a 33-fold dilution in broth, allowing replication of the ...
S. J. Burt, D. R. Woods
openaire   +1 more source

Growth of succinate consumer Dialister hominis is supported by Bacteroides thetaiotaomicron

Anaerobe, 2022
This study revealed an interaction between the gut commensal bacterium Bacteroides thetaiotaomicron JCM 5827T and asaccharolytic bacterium Dialister hominis JCM 33369T, which uses succinate instead of carbohydrates for growth. D. hominis usually forms extremely small colonies on Brucella blood agar plates.
Mitsuo Sakamoto, Nao Ikeyama, Takao Iino, Moriya Ohkuma   +3 more
openaire   +2 more sources

Activation of a Specific Gut Bacteroides-Folate-Liver Axis Benefits for the Alleviation of Nonalcoholic Hepatic Steatosis

Cell Reports, 2020
Summary: A beneficial gut Bacteroides-folate-liver pathway regulating lipid metabolism is demonstrated. Oral administration of a Ganoderma meroterpene derivative (GMD) ameliorates nonalcoholic hepatic steatosis in the liver of fa/fa rats by reducing ...
Shanshan Qiao, Li Bao, Kai Wang, Shanshan Sun, Mingfang Liao, Chang Liu, Nan Zhou, Ke Ma, Yuwei Zhang, Yihua Chen, Shuang-Jiang Liu, Hongwei Liu   +11 more
doaj   +1 more source