Results 31 to 40 of about 75,013 (302)

Stage-specific activity of potential antimalarial compounds measured in vitro by flow cytometry in comparison to optical microscopy and hypoxanthine uptake

open access: yesMemorias do Instituto Oswaldo Cruz, 2004
The evaluation of new antimalarial agents using older methods of monitoring sensitivity to antimalarial drugs are laborious and poorly suited to discriminate stage-specific activity.
Carmen E Contreras   +6 more
doaj   +1 more source

"One Pot" Synthesis of 1,5-Diaza-2,3,6,7-Thetrahydro-4-Methyl-Phenanthrene-4,8-Dione From Corresponding Bis-Beta-Amino Acid [PDF]

open access: yesIranian Journal of Chemistry & Chemical Engineering, 1999
The cyclization of b-anilino propionic acids in the presence of polyphosphoric acid (PPA) afforded the 2,3-Dihydroquinoline-4-(1H)-ones in good yields. N,N'-bis(2-carboxyethyl)-4-methyl-1,2-diaminobenzene (7) is cyclized under this condition to produce ...
Abbas Shokravi   +1 more
doaj  

Omadacycline Is Highly Active In Vitro against Mycoplasma genitalium

open access: yesMicrobiology Spectrum, 2022
Here, we performed in vitro susceptibility testing on 10 Mycoplasma genitalium isolates against omadacycline, minocycline, tetracycline, doxycycline, moxifloxacin, levofloxacin, and azithromycin.
Ken B. Waites   +4 more
doaj   +1 more source

The third quorum-sensing system of Pseudomonas aeruginosa: Pseudomonas quinolone signal and the enigmatic PqsE protein.

open access: yesJournal of Medical Microbiology, 2019
Pseudomonas aeruginosa is an opportunistic pathogen that produces several virulence factors such as lectin A, pyocyanin, elastase and rhamnolipids.
Selene García-Reyes   +2 more
semanticscholar   +1 more source

Development of the quinolones [PDF]

open access: yesJournal of Antimicrobial Chemotherapy, 2003
Since their discovery in the early 1960s, the quinolone group of antibacterials has generated considerable clinical and scientific interest. Nalidixic acid, the first quinolone to be developed, was obtained as an impurity during the manufacture of quinine.
Alasdair P. MacGowan   +1 more
openaire   +3 more sources

Word-based GWAS harnesses the rich potential of genomic data for E. coli quinolone resistance

open access: yesFrontiers in Microbiology, 2023
Quinolone resistance presents a growing global health threat. We employed word-based GWAS to explore genomic data, aiming to enhance our understanding of this phenomenon.
Negin Malekian   +5 more
doaj   +1 more source

Transferable Mechanisms of Quinolone Resistance from 1998 Onward

open access: yesClinical Microbiology Reviews, 2019
While the description of resistance to quinolones is almost as old as these antimicrobial agents themselves, transferable mechanisms of quinolone resistance (TMQR) remained absent from the scenario for more than 36 years, appearing first as sporadic ...
J. Ruiz
semanticscholar   +1 more source

Unravelling the Functional Diversity of Type III Polyketide Synthases in Fungi

open access: yesAngewandte Chemie, EarlyView.
Type III polyketide synthases (T3PKSs) produce diverse compounds of ecological and clinical importance. Here, the activity of 37 fungal T3PKSs was profiled, revealing unexpected products and generating several pharmaceutical precursors. The machine learning model trained on the activity data accurately extrapolates the predictions to other enzymes and ...
Nika Sokolova   +3 more
wiley   +2 more sources

Sitafloxacin Expresses Potent Anti-Mycobacterium abscessus Activity

open access: yesFrontiers in Microbiology, 2022
Therapeutic options for treating Mycobacterium abscessus infections are extremely limited; quinolones are important. The in vitro anti-M. abscessus activities of nine quinolones, emphasizing sitafloxacin, were investigated.
Siyuan He   +12 more
doaj   +1 more source

Meningococcal Quinolone Resistance Originated from Several Commensal Neisseria Species

open access: yesAntimicrobial Agents and Chemotherapy, 2019
Quinolone resistance is increasing in Neisseria meningitidis, with its prevalence in China being high (>70%), but its origin remains unknown. The aim of this study was to investigate the donors of mutation-harboring gyrA alleles in N. meningitidis.
Mingliang Chen   +3 more
semanticscholar   +1 more source

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