Quinolones
Mostrando 1-12 de 599 artigos, teses e dissertações.
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1. Leishmanicidal and Antimicrobial Activities of 4-Quinolone Alkaloids from Stems of the Medicinal Plant Waltheria indica (Malvaceae) and Their Chemotaxonomic Significance
A chemical investigation of the stem of Waltheria indica (Malvaceae) yielded twelve 4-quinolone alkaloids, which were primarily waltheriones. These were waltherione A (1), waltherione B (2), waltherione C (3), waltherione G (4), waltherione H (5), waltherione J (6), waltherione L (7), waltherione P (8), chamaedrone (9), 8-deoxy-antidesmone (10), antidesmone
Journal of the Brazilian Chemical Society. Publicado em: 2022
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2. Determination of antibiotic resistance genes and virulence factors in Escherichia coli isolated from Turkish patients with urinary tract infection
Abstract INTRODUCTION : Escherichia coli ranks among the most common sources of urinary tract infections (UTI). METHODS: Between November 2015 and August 2016, 90 isolates of E. coli were isolated from patients at Rize Education and Research Hospital in Turkey. Antibiotic susceptibility was determined for all isolates using the Kirby-Bauer disk diffusion
Rev. Soc. Bras. Med. Trop.. Publicado em: 27/06/2019
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3. Pseudomonas Aeruginosa: Virulence Factors and Antibiotic Resistance Genes
Abstract In this review, we explore some aspects of Pseudomonas aeruginosa virulence factors that are related to disease development in healthy organisms and resistance to antibiotics. This pathogen is one of the most clinically and epidemiologically important bacteria in Brazil, being the major cause of opportunistic infections. Among the virulence factors,
Braz. arch. biol. technol.. Publicado em: 09/06/2019
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4. Antimicrobial Susceptibility and Biofilm Production by Salmonella sp. Strains Isolated from Frozen Poultry Carcasses
ABSTRACT The objectives of this study were to evaluate the antimicrobial resistance and the biofilm-producing ability of Salmonella sp. strains isolated from frozen poultry carcasses. Antimicrobial susceptibility was tested by the disk-diffusion method. Biofilm-producing ability was determined in 96-well polystyrene microplates stained with crystal violet at
Rev. Bras. Cienc. Avic.. Publicado em: 2017-03
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5. Characterization of quinolone resistance in Salmonella spp. isolates from food products and human samples in Brazil
Abstract Non-typhoidal salmonellosis is an important zoonotic disease caused by Salmonella enterica. The aim of this study was to investigate the prevalence of plasmid-mediated quinolone resistance in Salmonella spp. and its association with fluoroquinolone susceptibility in Brazil. A total of 129 NTS isolates (samples from human origin, food from animal ori
Braz. J. Microbiol.. Publicado em: 2016-03
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6. ANTIBIOTIC RESISTANCE PATTERNS OF URINARY TRACT INFECTIONS IN A NORTHEASTERN BRAZILIAN CAPITAL
Urinary tract infection is a common problem worldwide. Its clinical characteristics and susceptibility rates of bacteria are important in determining the treatment of choice and its duration. This study assessed the frequency and susceptibility to antimicrobials of uropathogens isolated from community-acquired urinary tract infections in the city of Natal, R
Rev. Inst. Med. trop. S. Paulo. Publicado em: 23/02/2016
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7. Clostridium difficile outbreak caused by NAP1/BI/027 strain and non-027 strains in a Mexican hospital
Abstract Background Clostridium difficile infections caused by the NAP1/B1/027 strain are more severe, difficult to treat, and frequently associated with relapses. Methods A case–control study was designed to examine a C. difficileinfection (CDI) outbreak over a 12-month period in a Mexican hospital. The diagnosis of toxigenic CDI was confirmed by real-t
Braz J Infect Dis. Publicado em: 2016-02
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8. Susceptibility to β-lactams and quinolones of Enterobacteriaceae isolated from urinary tract infections in outpatients
Abstract The antibiotic susceptibility profile was evaluated in 71 Enterobacteriaceae isolates obtained from outpatient urine cultures in July 2010 from two health institutions in Santa Fe, Argentina. The highest rates of antibiotic resistance were observed for ampicillin (AMP) (69%), trimethoprim/sulfamethoxazole (TMS) (33%), and ciprofloxacin (CIP) (25%).
Braz. J. Microbiol.. Publicado em: 09/10/2015
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9. Quinolone resistance and ornithine decarboxylation activity in lactose-negative
Escherichia coli Quinolones and fluoroquinolones are widely used to treat uropathogenic
Escherichia coli infections. Bacterial resistance to these antimicrobials primarily involves mutations ingyrA andparC genes. To date, no studies have examined the potential relationship between biochemical characteristics and quinoloBraz. J. Microbiol.. Publicado em: 21/07/2015
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10. Molecular characterization of multidrug-resistant
Klebsiella pneumoniae isolatesKlebsiella pneumoniae is an important cause of healthcare-associated infections worldwide. Selective pressure, the extensive use of antibiotics, and the conjugational transmission of antibiotic resistance genes across bacterial species and genera facilitate the emergence of multidrug-resistant (MDR)K. pneumoniae . Here, wBraz. J. Microbiol.. Publicado em: 21/07/2015
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11. Draft genome sequences of three NDM-1-producing Enterobacteriaceae species isolated from Brazil
The emergence of multidrug-resistant Enterobacteriaceae strains producing carbapenemases, such as NDM-1, has become a major public health issue due to a high dissemination capacity and limited treatment options. Here we describe the draft genome of three NDM-1-producing isolates: Providencia rettgeri(CCBH11880), Enterobacter hormaecheisubsp. oharae(CCBH10892
Mem. Inst. Oswaldo Cruz. Publicado em: 29/05/2015
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12. Ocorrência e degradação de quinolonas por processos oxidativos avançados
In this review, the presence of quinolones in the environment, their risks and the available processes for water decontamination were addressed. Their occurrence in surface waters and also in soil raises concerns about the risk of the development of resistant bacteria and other potential chronic effects. AOPs (UV/H2O2, Fenton, photo-Fenton, and UV/TiO2) and
Quím. Nova. Publicado em: 2014-06