Results 111 to 120 of about 999,443 (290)

2,4-Dihydroxypentanoic Acids: New Non-sugar Components of Bacterial Polysaccharides

Natural Product Communications, 2008
New components of bacterial polysaccharides, (2 S ,4 R )- and (2 R ,4 R )-2,4-dihydroxypentanoic acids, were identified using two-dimensional 1 H and 13 C NMR spectroscopy in the O-antigens of Providencia alcalifaciens O8 and O31.
Alexander S. Shashkov, Nina A. Kocharova, Filip V. Toukach, Vadim V. Kachala, Yuriy A. Knirel   +4 more
doaj   +1 more source

Microbial production of extracellular polysaccharides from biomass sources

, 2015
The interest in bio-based polymers, especially extracellular polysaccharides (EPSs), has increased considerably in recent years due to their useful physicochemical and rheological properties and diverse functionality.

core   +1 more source

Gut Microbial Release of Ferulic Acid From Germinated Quinoa Alleviates Obesity‐Associated Cognitive Impairment by Activating Hippocampal Mitophagy Associated with PINK1/Parkin Pathway

Advanced Science, EarlyView.
Liberation of ferulic acid by gut microbial feruloyl esterase mediates cognitive enhancement of germinated quinoa (GQF) on obese mice. Ferulic acid enriched in GQF is released by gut microbes Roseburia hominis and R. intestinalis and subsequently mediates the neuroprotective effects of GQF on obesity‐induced cognitive decline by activating hippocampal ...
Yongli Lan, Wengang Zhang, Lei Wang, Shiyang Zhao, Yujie Song, Xinze Wang, Yutang Wang, Xijuan Yang, Shaobo Ma, Junlin Ge, Rui Guo, Xuebo Liu   +11 more
wiley   +1 more source

Innovative Test Strip‐Based Colorimetric Sensors Integrated With Affinity Chromatography: Acetylcholinesterase Inhibitor Screening Breakthrough in Lycium Barbarum Leaves

Advanced Science, EarlyView.
Schematic diagrams illustrating the breakthrough in the screening of AChE inhibitors from LBL, and the research process of the pharmacodynamics of the NCP are presented. ABSTRACT Current Alzheimer's drugs exhibit limited effectiveness, highlighting the necessity for multi‐target treatments.
Yuping Sa, Hui Yuan, Jingui Ma, Zhigang Yang, Mei Wang, Weibiao Wang, Lingling Yang, Fen Ma, Weiman Zhang, Gidion Wilson Mening'oo, Guoning Chen, Xueqin Ma   +11 more
wiley   +1 more source

Gut‐Liver Translocation of Bacteroides Uniformis Alleviates Advanced Metabolic Dysfunction‐Associated Steatotic Liver Disease by Suppressing Hepatocyte Ferroptosis via Propionic Acid Secretion

Advanced Science, EarlyView.
Systematic characterization of the liver‐resident microbiota in advanced metabolic dysfunction‐associated steatotic liver disease (MASLD) reveals a consistent depletion of Bacteroides uniformis (B. uniformis) in both hepatic and gut microbial communities. Oral gavage of B.
Haiyang Liu, Zun Fan, Zhen Liu, Lei Qin, Xin Zhao   +4 more
wiley   +1 more source

Artificial Intelligence‐Guided Phenotypic Drug Repurposing Against Streptococcus pneumoniae

Advanced Science, EarlyView.
Integrated artificial intelligence (AI) ensembles identify highly potent repurposed drugs against Streptococcus pneumoniae. Prospective virtual screening of 6747 drugs uncovers nine active candidates, including thiostrepton. This drug exhibits low picomolar potency and bypasses established resistance in multidrug‐resistant strains, demonstrating an ...
Joshua S. Fitch, Muhammad D. Ariadi, Min Jung Kwun, Leonie Howells, Saiveth Hernandez‐Hernandez, Nicholas J. Croucher, Pedro J. Ballester   +6 more
wiley   +1 more source

Interactions of intestinal epithelial cells with bacterial extracellular products [PDF]

The enteric microflora represents one of the densest microbial populations in the biological world; as a consequence, the intestinal immune system is constantly exposed to high concentrations of antigenic materials. One of the major frontline defences in
Patten, Daniel
core   +3 more sources

Protease‐Triggered Chromogenic Release From Peptide‐Modified Calcium Carbonate Microspheres Enables Colorimetric Detection of Porphyromonas gingivalis Activity

Advanced Science, EarlyView.
We report a chromogenic release‐based assay system with protease‐cleavage peptide‐modified calcium carbonate microspheres for colorimetric detection of Porphyromonas (P.) gingivalis activity. In response to Arg‐specific gingipain secreted by P. gingivalis, the supernatant becomes colored, enabling colorimetric analysis and providing the monitoring of ...
Yuki Hiruta, Zhicheng Jin, Mari Adachi, Lubna Amer, Natalia O. Tjokro, Diego F. Trujillo, Jan Potempa, Anthony J. O'Donoghue, Casey Chen, Jesse V. Jokerst   +9 more
wiley   +1 more source

Tailored Covalent Organic Frameworks Enable the Encapsulation of Living Cells to Produce Rare Ginsenoside

Advanced Science, EarlyView.
This work reports the in situ fabrication of Escherichia coli@covalent organic frameworks (E. coli@COFs) in phosphate‐buffered saline. The COFs form an exoskeleton on E. coli, protecting intracellular β‐glucosidase (Ssbgl) while enhancing mass transfer.
Fengmei Liu, Shan Zhang, Shanrong Wei, Ziye Xing, Hongming He, Xiao Liang, Quanshun Li   +6 more
wiley   +1 more source

Gut microbiota and serum metabolome reveal the mechanism by which TCM polysaccharides alleviate salpingitis in laying hens challenged by bacteria

Poultry Science
: This paper aimed to evaluate the effect of 3 kinds of TCM polysaccharides instead of antibiotics in preventing salpingitis in laying hens. After feeding the laying hens with Lotus leaf polysaccharide, Poria polysaccharide, and Epimedium polysaccharide,
Jiali Liu, Pupu Yan, Yana Li, Jie Yu, Yongxi Huang, Ruonan Bai, Man Liu, Ning Wang, Lian Liu, Jun Zhu, Junhao Xiao, Liwei Guo, Guoping Liu, Fuxian Zhang, Xiaolin Yang, Bin He, Jianguo Zeng, Xiaoqin Zeng   +17 more
doaj   +1 more source