Results 71 to 80 of about 210,474 (260)
Effect of ampicillin and sulbactam/ampicillin on the immune system.
The Journal of international medical research, 1991 An investigation was carried out into the possible effects of ampicillin and a sulbactam/ampicillin combination on the immune system of healthy subjects. The following immunological variables were compared before and after antibiotic therapy: proliferation response of peripheral mononuclear cells to phytohaemagglutinin; variation of T- and B ...
M.R. Gismondo, G. Chisari, A. M. Lo Bue
openaire +2 more sources
Advanced Science, EarlyView.A unique mechanism of catalytic bias regulated by diaphorase‐like subunit in formate dehydrogenase from Rhodobacter aestuarii is revealed. The diaphorase‐like subunit functions act as a biological “voltage rheostat” that controls the slow release of NADH to regulate redox balance, biasing the enzyme's catalytic preference toward CO2 reduction over ...
Kuncheng Zhang +7 more
wiley +1 more source
Engineered Optogenetic Circuits In Yeast with Self‐Sustained Outputs
Advanced Science, EarlyView.Optogenetic quorum‐sensing (OptoQS) circuit enables Saccharomyces cerevisiae to record transient light stimulus with self‐sustained outputs. Panel a indicates the design of the OptoQS circuit based on G‐protein coupled receptor (GPCR) signaling cascade. Panel b indicates the mode of action of surrogate messenger‐mediated signal transmission at the cell
Cong Fan +7 more
wiley +1 more source
Journal of Infection in Developing Countries, 2008 Background : The prevalence of antimicrobial resistance among uropathogenic E. coli varies widely worldwide; to guide empirical therapy is necessary to have local, up-to-date susceptibility data.
Jose Luis Arredondo-García +1 more
doaj +1 more source
Advanced Science, EarlyView.Here we developed Am@SExo, a dual‐functional engineered exosome that coordinates CD47–SIRPα checkpoint blockade with Arg1 mRNA–mediated metabolic reprogramming. Surface SIRPα promotes recognition of apoptotic cells and plaque targeting, while Arg1 expression enhances arginine–ornithine metabolism, Rac1 activation, and actin remodeling in macrophages ...
Danwen Zheng +17 more
wiley +1 more source
Advanced Science, EarlyView.Host‐specific compatibility between RNF138‐like proteins and flavivirus NS5 determines NS5 stability. Mammalian RNF138 but not arthropod homologs recognizes and induces conserved NS5/RdRp K48‐linked ubiquitination and proteasomal degradation, thereby restricting viral replication. Ectopic RNF138 in mice attenuates TBEV‐induced pathogenesis. (Created in
Jialiang Sun +6 more
wiley +1 more source
Multi‐Targeting Carnosic Acid Kills Drug‐Resistant Helicobacter pylori With Narrow‐Spectrum Activity
Advanced Science, EarlyView.Carnosic acid selectively eradicates drug‐resistant Helicobacter pylori through a multi‐targeted mechanism involving urease inhibition, membrane disruption, and biofilm eradication. It exhibits no detectable resistance, potent in vivo efficacy, and minimal impact on gut microbiota, positioning it as a promising narrow‐spectrum lead compound against ...
Yuefan Bai +7 more
wiley +1 more source
Advanced Science, EarlyView.Phylogenetic and biochemical analyses of the heme transporter CydDC reveal its functional conservation throughout bacterial evolution and demonstrate its unique asymmetric allosteric mechanism. Furthermore, impairment of CydDC function directly affects bacterial antibiotic resistance and likely compromises antibiotic efficacy through drug efflux.
Lili Yang +19 more
wiley +1 more source
Guidance on the safety assessment of Enterococcus faecium in animal nutrition
EFSA Journal, 2012 This Guidance document is intended to provide a method to identify Enterococcus faecium strains belonging to a sub‐population of bacteria isolated from clinical specimens.
EFSA Panel on Additives and Products or Substances used in Animal Feed (FEEDAP)
doaj +1 more source