Results 121 to 130 of about 348,393 (352)
The Gut Microbiota Regulates Motor Deficits via Butyrate in a Gnal+/− Mouse Model of DYT25 Dystonia
Advanced Science, EarlyView.The present study provides compelling evidence for a modulatory role of the gut microbiota in the pathology of DYT25 dystonia, and butyrate supplementation alleviates the motor deficits of dystonia in Gnal+/− mice. Abstract Dystonia is the third most common movement disorder, following essential tremor and Parkinson's disease. The underlying mechanisms
Jingya Guo +3 more
wiley +1 more source
A Dynamic Gate Enables Regioselective Hydroxylation of Free Arginine by a Non‐Canonical Heme Enzyme
Advanced Science, EarlyView.The YqcI/YcgG enzyme AglA employs a unique “sandwich” fold and a dynamic gating mechanism to selectively hydroxylate AMPn‐Arg at Nε. Site‐directed mutations reprogram regioselectivity or enable activity on free arginine by altering hydrogen‐bond networks, precisely positioning substrates.
Yuan Sun +12 more
wiley +1 more source
AntibioticsBackground/Objectives: Antibiotics have a significant impact on the gut microbiota, and we hypothesized that human milk oligosaccharides may alleviate antibiotic-induced gut microbiota dysbiosis.
Kristine Rothaus Christensen +7 more
doaj +1 more source
Altering Enzymatic Activity: Recruitment of Carboxypeptidase Activity into an RTEM β-Lactamase/Penicillin-Binding Protein 5 Chimera [PDF]
, 1990 The D-Ala-D-Ala carboxypeptidases/transpeptidases (penicillin-binding proteins, PBPs) share considerable structural homology with class A β-lactamases (EC 3.5.2.6), although these β-lactamases have no observable D-Ala-D-Ala carboxypeptidase activity ...
Chang, Yie-Hwa +2 more
core
Advanced Science, EarlyView.CRISPR‐FLEXMO (CRISPR with flexible PAM in MOF encapsulation) integrates a PAM‐relaxed Cas12a K607R enzyme with a manganese‐coordinated MOF for broad‐spectrum diagnosis of bacterial sepsis. The MOF enhances activity and preserves functionality under heat, solvent, and chaotropic stress, supporting long‐term room‐temperature storage.
Tathagata Pal +3 more
wiley +1 more source
Attributable mortality of vancomycin resistance in ampicillin-resistant Enterococcus faecium bacteremia in Denmark and the Netherlands: a matched cohort study [PDF]
, 2020 Wouter C. Rottier +11 more
openalex +1 more source
Advanced Science, EarlyView.Metabolomics analyses reveal that trigonelline is markedly reduced in HFpEF hearts. Trigonelline supplementation alleviates metabolic disorders and improves cardiac function in HFpEF mice via gut microbiota‐mediated AMPK activation. Abstract Heart failure with preserved ejection fraction (HFpEF) is a prevalent end‐manifestation of cardiovascular ...
Zhe Cheng +9 more
wiley +1 more source
Advanced Science, EarlyView.Traditionally considered sterile, the articular cavity is now recognized to harbor microbial communities influencing osteoarthritis (OA). Integrating 16S rRNA sequencing and culturomics, Micrococcus luteus is enriched in advanced OA. Notably, M. luteus G18 exacerbates cartilage degeneration via TLR2/JNK/AP‐1‐mediated ECM disruption, revealing intra ...
Tingtao Chen +6 more
wiley +1 more source
Plasmid-Encoded Multidrug Resistance of Salmonella typhi and some Enteric Bacteria in and around Kolkata, India: A Preliminary Study [PDF]
, 2005 The present study investigates the occurrence of R-plasmid in Salmonella typhi isolates from enteric fever cases in and around Kolkata (1991-2001), India following in vitro conjugation experiments, isolation of plasmid DNAs and agarose gel ...
Mandal, Mr. Shyamapada +2 more
core
Ampicillin in Paediatrics [PDF]
Archives of Disease in Childhood, 1964 R B, ELLIOTT, E J, STOKES, G M, MAXWELL
openaire +2 more sources