Results 21 to 30 of about 94,885 (205)

Crystal structure of ethyl 8-chloro-4-oxo-1,4-dihydroquinoline-3-carboxylate

open access: yesActa Crystallographica Section E: Crystallographic Communications, 2015
In the title compound, C12H10ClNO3, the asymmetric unit comprises two independent molecules, and the dihedral angle between the least-square planes of the quinoline ring systems of these molecules is 73.30 (5)°.
Yoshinobu Ishikawa, Nanako Yoshida
doaj   +1 more source

Quinolone and Organophosphorus Insecticide Residues in Bivalves and Their Associated Risks in Taiwan

open access: yesMolecules, 2020
Bivalves, such as freshwater clams (Corbicula fluminea) and hard clams (Meretrix lusoria), are the most extensive and widely grown shellfish in land-based ponds in Taiwan.
Ching-Feng Wu   +10 more
doaj   +1 more source

Europe's contribution to the evaluation of the use of systemic antimicrobials in the treatment of periodontitis

open access: yesPeriodontology 2000, EarlyView., 2023
Abstract This narrative review celebrates Europe's contribution to the current knowledge on systemically administered antimicrobials in periodontal treatment. Periodontitis is the most frequent chronic noncommunicable human disease. It is caused by dysbiotic bacterial biofilms and is commonly treated with subgingival instrumentation.
David Herrera   +4 more
wiley   +1 more source

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

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 phenazine pyocyanin is a terminal signalling factor in the quorum sensing network of Pseudomonas aeruginosa [PDF]

open access: yes, 2006
Certain members of the fluorescent pseudomonads produce and secrete phenazines. These heterocyclic, redox-active compounds are toxic to competing organisms, and the cause of these antibiotic effects has been the focus of intense research efforts.
Dietrich, Lars E. P.   +4 more
core   +1 more source

Supra and subgingival application of antiseptics or antibiotics during periodontal therapy

open access: yesPeriodontology 2000, EarlyView., 2023
Abstract Periodontal diseases (gingivitis and periodontitis) are characterized by inflammatory processes which arise as a result of disruption of the balance in the oral ecosystem. According to the current S3 level clinical practice guidelines, therapy of patients with periodontitis involves a stepwise approach that includes the control of the patient ...
Elena Figuero   +5 more
wiley   +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  

In vitro Antibacterial Activity of Vitamin C and in Combination with Ciprofloxacin against Uropathogenic Escherichia coli [PDF]

open access: yesJournal of Clinical and Diagnostic Research, 2017
Introduction: Multidrug Resistant (MDR) bacteria have become a major cause for concern; there has been limited success in the search for newer antibiotics. The search for options has led researchers to vitamin C, an unlikely ally.
Rohan Jacob Verghese   +2 more
doaj   +1 more source

The small quinolone derived compound HT61 enhances the effect of tobramycin against Pseudomonas aeruginosa in vitro and in vivo. [PDF]

open access: yes, 2020
HT61 is a small quinolone-derived compound previously demonstrated to exhibit bactericidal activity against gram-positive bacteria including methicillin-susceptible Staphylococcus aureus (MSSA) and methicillin-resistant Staphylococcus aureus (MRSA). When
Amison, RT   +6 more
core   +1 more source

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