Bacterial Drug Resistance
Mostrando 25-36 de 282 artigos, teses e dissertações.
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25. Heavy metal tolerance (Cr, Ag and Hg) in bacteria isolated from sewage
Samples of sewage from a university hospital and a chemistry technical school were analysed for the percentage of bacterial tolerance to chromium (Cr), silver (Ag) and mercury (Hg). Additionally, we investigated the effect of these metals on pigmentation and on some enzymatic activities of the metal tolerant strains isolated, as well as antimicrobial resista
Braz. J. Microbiol.. Publicado em: 2012-12
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26. Mechanisms of action of systemic antibiotics used in periodontal treatment and mechanisms of bacterial resistance to these drugs
Antibiotics are important adjuncts in the treatment of infectious diseases, including periodontitis. The most severe criticisms to the indiscriminate use of these drugs are their side effects and, especially, the development of bacterial resistance. The knowledge of the biological mechanisms involved with the antibiotic usage would help the medical and denta
Journal of Applied Oral Science. Publicado em: 2012-06
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27. Characterization and sensitivity to antibiotics of bacteria isolated from the lower respiratory tract of ventilated patients hospitalized in intensive care units
OBJECTIVE: This observational study described the characterization of bacteria isolated from the lower respiratory tract of ventilated patients hospitalized in intensive care units. The demonstration of isolated microorganism resistance to antibiotics and a time-trend analysis of infection comparing a 48-month period were also other objectives. METHOD: Semi-
Brazilian Journal of Infectious Diseases. Publicado em: 2012-02
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28. Caracterização de betalactamases de espectro ampliado e KPC em Enterobacter cloacae e Enterobacter aerogenes isoladas de casos de infecções relacionadas aos cuidados com a saúde em pacientes atendidos em hospitais da cidade de São / Characterization of extended spectrum beta-lactamases and KPC in Enterobacter cloacae and Enterobacter aerogenes cultivated from cases of healthcare-associated infections in patients from hospitals in the city of São Paulo
INTRODUÇÃO: O tratamento das infecções relacionadas à assistência à saúde, causadas por enterobactérias, representa um desafio crescente, em função do aumento da prevalência de resistência aos betalactâmicos, em particular às cefalosporinas de terceira e quarta gerações e carbapenêmicos. Os mecanismos de resistência mais relevantes a essas
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 30/08/2011
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29. Inhibition of Saccharomyces cerevisiae Pdr5p by a natural compound extracted from Brazilian Red Propolis
Multidrug resistance of cancer cells and pathogenic microorganisms leading to the treatment failure of some forms of cancer or life-threatening bacterial or fungal infections is often caused by the overexpression of multidrug efflux pumps belonging to the ATP-binding cassette transporters superfamily. The multidrug resistance of fungal cells often involves t
Revista Brasileira de Farmacognosia. Publicado em: 12/08/2011
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30. Indicações e adesão adequadas da quimioprofilaxia como prevenção entre os contatos de pacientes com tuberculose, no município de Palmas TO / Adequate indications and adhesion of the chemoprevention as prevention enter the contacts of patients with tuberculosis, in the city of Palmas TO.
The tuberculosis is a infectum-contagious illness, caused by the Mycobacterium tuberculosis, in Brazil the tuberculosis consists in a serious problem of public health, although to be the first country in the world to implant the treatment of short duration, with multidrugs that guarantee the cure in six months. The chemoprevention is a preventive form of con
Publicado em: 2011
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31. Mecanismos envolvidos com a sobrevivência de Xylella fastidiosa em condições de estresse e efeito de N-Acetil-L-Cisteína em seu biofilme / Mechanisms involved in Xylella fastidiosa survival under stress conditions and effect of N-Acetyl-L-Cysteine on its biofilm
Xylella fastidiosa is a Gram-negative bacterium that causes several diseases in different plant species, including citrus variegated chlorosis (CVC) in sweet orange (Citrus sinensis L. Osbeck), whose economic damage is of millions of dollars annually. The symptoms development has been associated with the blockage of xylem vessels caused by bacterial biofilm
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 15/06/2010
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32. Pesquisa de genes de resistência a antimicrobianos beta-lactâmicos e de enterotoxina em cepas de Staphylococcus aureus presentes em amostras de alimentos / Search of antimicrobial beta-lactam resistance genes and enterotoxin genes in Staphylococcus aureus strains present in food samples
Introduction: Staphylococcus aureus are a bacterium that causes various types of diseases. There are two major aggravating to its presence: the toxins production and antimicrobial resistance. S. aureus produce heat-labile enterotoxina that, when present in food, can lead to poisoning of those who consume. This specie is also known to easily respond adaptivel
Publicado em: 2010
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33. Análise dos dados obtidos em um inquérito para avaliar a qualidade de 467 laboratórios de microbiologia no Brasil / Analysis of the data obtained in a national survey to evaluate the quality of 467 microbiology laboratories in Brazil
A resistência aos antimicrobianos é um problema global. O planejamento de estratégias preventivas depende da acurácia das informações sobre sensibilidade aos antimicrobianos e, portanto, da qualidade dos laboratórios de microbiologia. O objetivo deste estudo foi avaliar a proporção dos laboratórios que apresentavam condições mínimas de funcionam
Publicado em: 2010
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34. Klebsiella pneumoniae: estudo molecular dos fatores de resistÃncia e caracterizaÃÃo ultra-estrutural da aÃÃo de antibiÃticos β-lactÃmicos
Klebsiella pneumoniae is an enterobacteria responsible for a high incidence of hospital infections usually caused by strains carrier of multidrug resistance and producer of broad spectrum -lactamase (ESBL). This study aimed to determine the genes involved in the formation of classical beta-lactamases and ESBLs in Recife-PE, Brazil, and investigate th
Publicado em: 2009
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35. Células T reguladoras representam um fator de susceptibilidade na tuberculose experimental / Regulatory T Cells may represent a susceptibiliy factor in experimental tuberculosis
Tuberculosis is responsible for the highest number of cases of bacterial infection in the world, which are frequently fatal, especially when associated with multiply drug-resistant and extremely resistant strains, treatment abandonment and immune suppression. Depending on the nature and magnitude of the host response, an excessive inflammation follows the pr
Publicado em: 2009
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36. Epidemiological characterization of resistance and PCR typing of shigella flexneri and shigella sonnei strains isolated from bacillary dysentery cases in Southeast Brazil / Caracterização biologica e molecular de amostras de shigella flexneri e shigella sonnei isoladas da regiao de Campinas-SP
Shigella spp are gram-negative, anaerobic facultative, non-motile, and non-sporulated bacilli of the Enterobacteriaceae family, responsible for Shigellosis or the Bacillary Dysentery (BD) disease, an important cause of worldwide morbidity and mortality. The pathogenic determinants of Shigella spp include high molecular weight plasmids responsible for the bac
Publicado em: 2007