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| Registros recuperados: 51 | |
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| Fehlberg,Lorena C.C.; Carvalho,Albalucia M.C.; Campana,Eloiza H.; Gontijo-Filho,Paulo P.; Gales,Ana C.. |
| The emergence of KPC-2 producing K. pneumoniae in hospitalized patients at the intensive care unit (ICU) of a teaching hospital located in the city of João Pessoa, Paraíba, Brazil, is reported. Seven carbapenem-resistant K. pneumoniae recovered from different body sites of infection were analyzed. Most isolates showed a multidrug-resistance phenotype. Genotypic analysis demonstrated the presence of two genotypes, with the predominance of genotype A, which belongs to ST 437. These isolates also carry the encoding genes of five other betalactamases. |
| Tipo: Info:eu-repo/semantics/other |
Palavras-chave: Beta-lactam resistance; Modified Hodge test; Carbapenem resistance; Enterobacteriaceae. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702012000600013 |
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| Seki,Liliane Miyuki; Pereira,Polyana Silva; Conceição,Magda de Souza; Souza,Maria José; Marques,Elizabeth Andrade; Carballido,Jupira Miron; Carvalho,Maria Elisabeth Serqueira de; Assef,Ana Paula D'Alincourt Carvalho; Asensi,Marise Dutra. |
| OBJECTIVE: The present studywas designed to evaluate the molecular epidemiology of CTX-M producing Klebsiella pneumoniae, Enterobacter cloacae and Escherichia coli isolated from bloodstream infections at tertiary care hospitals in the State of Rio de Janeiro, Brazil. MATERIAL AND METHODS: A total of 231 nonduplicate Enterobacteriaceae were isolated from five Brazilian hospitals between September 2007 and September 2008. The antimicrobial susceptibility testing was performed by disk diffusion method according to the Clinical Laboratory Standard Institute. Isolates showing resistance to third-generation cephalosporins were screened for ESBL activity by the double-disk synergy test. The presence of blaCTX-M , blaCTX-M-15 and blaKPC genes was determined by... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bloodstream infections; Enterobacteriaceae; CTX-M-15; PFGE; KPC; Brazil. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702013000600003 |
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| Oliveira,Mirian Cristina; Oliveira,Clara Rodrigues Alves; Gonçalves,Karine Valéria; Santos,Marciléa Silva; Tardelli,Amanda Cristina Silva; Nobre Jr.,Vandack Alencar. |
| Objectives: Evaluate risk factors and clinical outcomes of infections caused by Enterobacteriaceae resistant to third-generation cephalosporins present in samples collected upon hospital admission.Methods: Risk factors were evaluated using a 1:2 ratio case-control study. Influence of resistance on the appropriateness of antibiotic therapy, length of stay, and hospital mortality were prospectively evaluated. Characteristics independently associated with the presence of resistant enterobacteria were assessed by logistic regression.Results: Enterobacteria resistant to third-generation cephalosporins were quite common (26.0%). Male gender (OR: 2.66; 95% CI, 1.17-5.06; p= 0.019), invasive prosthesis (OR: 3.79; 95% CI, 1.29-11.08; p= 0.015), previous use of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Enterobacteriaceae; Third generation cephalosporins; Risk factors; Antibiotic resistance. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702015000300239 |
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| Baral,Pankaj; Neupanea,Sanjiv; Shresthac,Basudha; Ghimirea,Kashi Ram; Marasinia,Bishnu Prasad; Lekhaka,Binod. |
| Limited information is available regarding AmpC β-lactamase (ABL)-producing Enterobacteriaceae compared to extended-spectrum β-lactamase-producing enterobacteria. Since ABL-producing organisms are often resistant to multiple antimicrobial agents, therapeutic options against these pathogens are limited. Among 230 clinical Enterobacteriaceae isolates, 64 (27.8%) were found to produce ABL in our study. Escherichia coli (83.9%) was a predominant pathogen, followed by Citrobacter freundii (5.2%). A significant proportion of ABL-producing isolates (81.3%) were found to be multidrug resistant against commonly used antibiotics. Univariate analysis showed that prior history of taking antibiotics (odds ratio [OR], 5.278; confidence interval [CI], 2.838-9.817; p <... |
| Tipo: Info:eu-repo/semantics/other |
Palavras-chave: AmpC β-lactamase; Enterobacteriaceae; Antibiotic resistance. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702013000200022 |
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| Ni,Wentao; Cai,Xuejiu; Wei,Chuanqi; Di,Xiuzhen; Cui,Junchang; Wang,Rui; Liu,Youning. |
| In recent years, carbapenem-resistant Enterobacteriaceae has become endemic in many countries. Because of limited treatment options, the abandoned "old antibiotics", polymyxins, have been reintroduced to the clinic. To evaluate the clinical efficacy of polymyxins in the treatment of infections caused by carbapenem-resistant Enterobacteriaceae , we systemically searched the PubMed, Embase, and Cochrane Library databases and analyzed the available evidence. The Preferred Reporting Items for Systematic reviews and Meta-Analysis statement were followed, and the I 2 method was used for heterogeneity. Nineteen controlled and six single-arm cohort studies comprising 1086 patients met the inclusion criteria. For controlled studies, no significant difference was... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Polymyxin; Enterobacteriaceae; Carbapenem-resistant; Carbapenemase-producing. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702015000200170 |
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| Quiles,M.G.; Rocchetti,T.T.; Fehlberg,L.C.; Kusano,E.J.U.; Chebabo,A.; Pereira,R.M.G.; Gales,A.C.; Pignatari,A.C.C.. |
| We report the microbiological characterization of four New Delhi metallo-β-lactamase-1 (blaNDM-1)-producing Enterobacteriaceae isolated in Rio de Janeiro, Brazil. blaNDM-1 was located on a conjugative plasmid and was associated with Klebsiella pneumoniae carbapenemase-2 (blaKPC-2) or aminoglycoside-resistance methylase (armA), a 16S rRNA methylase not previously reported in Brazil, in two distinct strains of Enterobacter cloacae. Our results suggested that the introduction of blaNDM-1 in Brazil has been accompanied by rapid spread, since our isolates showed no genetic relationship. |
| Tipo: Info:eu-repo/semantics/report |
Palavras-chave: Enterobacteriaceae; Carbapenem-resistance; Carbapenemases; Methylase. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2015000200174 |
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| Tekiner,İsmail Hakkı; Özpınar,Haydar. |
| Abstract Presence of extended spectrum beta-lactamases (ESBL) in bacteria is a growing health concern of global significance. The local, regional, national, and international epidemiological studies for extended spectrum beta-lactamases-producing Enterobacteriaceae and their encoding genes in foods are still incomplete. The objective of this study was to determine the occurrence of extended spectrum beta-lactamases-producing Enterobacteriaceae and the characteristics of their encoding genes from a total of 250 samples of various foods of animal-origin (100 raw chicken meat, 100 raw cow milk, and 50 raw cow milk cheese) sold in Turkey. Overall, 55 isolates were positive as extended spectrum beta-lactamases-producing Enterobacteriaceae. The most prevalent... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bla gene; Enterobacteriaceae; ESBL; Public health; Turkey. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822016000200444 |
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| Silva,Marcio A.; Fernandes,Érika F.S.T.; Santana,Sandra C.; Marvulo,Maria Fernanda V.; Barros,Mércia R.; Vilela,Sineide M.O.; Reis,Eliane M.F.; Mota,Rinaldo A.; Silva,Jean C.R.. |
| Abstract The growth of the population of cattle egrets (Bubulcus ibis) in the archipelago of Fernando de Noronha constitutes a threat to public health and biological diversity because of their competition with and predation on native species and the possibility of transmission of pathogens to human beings, livestock and native wildlife. The aim here was to search for, isolate and identify serovars of Salmonella in clinically healthy local cattle egrets. Cloacal swabs were obtained from 456 clinically healthy cattle egrets of both sexes and a variety of ages. The swabs were divided into 51 pools. Six of these (11.7%) presented four serovars of Salmonella enterica subspecies enterica: Salmonella serovar Typhimurium; Salmonella serovar Newport; Salmonella... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Ardeidae; Oceanic islands; Conservation medicine; Enterobacteriaceae; Public health. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822018000300559 |
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| Silva,Carlos Henrique Pessôa de Menezes e. |
| The new ß-lactamases have arisen largely as a consequence of heavy use of new expanded spectrum ß-lactam antibiotics. Health professionals need to be aware of the resistance problems caused by the new enzymes, and know the correct procedures to detect, prevent and control such problems. In this study, a new screening medium called Ceftazidime-Inositol-Vancomycin-Amphotericin B Agar (CIVA) was elaborated and the microbiological performance was evaluated for the detection and presumptive identification of ESBL-producing members of Enterobacteriaceae. It was performed in 126 stool samples from hospitalized patients at Santa Monica Hospital (Vila Velha, ES, Brazil), who had been heavily exposed to broad-spectrum antibiotic combinations. The bacteria were... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Enterobacteriaceae; Culture medium; ESBL. |
| Ano: 2000 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822000000400006 |
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| Gaetti-Jardim Júnior,Elerson; Ciesielski,Francisco Isaak Nicolas; Sousa,Fátima Regina Nunes de; Nwaokorie,Francisca; Schweitzer,Christiane Marie; Avila-Campos,Mario Júlio. |
| The aim of this study was to evaluate the occurrence of yeasts, pseudomonads and enteric bacteria in the oral cavity of patients undergoing radiotherapy (RT) for treatment of head and neck cancer. Fifty patients receiving RT were examined before, during and 30 days after RT. Saliva, mucosa, and biofilm samples were collected and microorganisms were detected by culture and polymerase chain reaction (PCR). The most prevalent yeasts in patients submitted to RT were Candida albicans, C. tropicalis, C. krusei, C. glabrata and C. parapsilosis. Citrobacter, Enterobacter, Enterococcus, Klebsiella, Proteus, and Pseudomonas were the most frequently cultivated bacteria. Before RT, targeted bacteria were cultivated from 22.2% of edentulous patients and 16.6% of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Radiotherapy; Cancer; Enterobacteriaceae; Prevalence. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822011000300024 |
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| Querido,Silvia Maria Rodrigues; Back-Brito,Graziella Nuernberg; Santos,Silvana Soléo Ferreira dos; Leão,Mariella Vieira Pereira; Koga-Ito,Cristiane Yumi; Jorge,Antonio Olavo Cardoso. |
| Antimicrobial therapy may cause changes in the resident oral microbiota, with the increase of opportunistic pathogens. The aim of this study was to compare the prevalence of Candida, Staphylococcus, Pseudomonas and Enterobacteriaceae in the oral cavity of fifty patients undergoing antibiotic therapy for pulmonary tuberculosis and systemically healthy controls. Oral rinsing and subgingival samples were obtained, plated in Sabouraud dextrose agar with chloramphenicol, mannitol agar and MacConkey agar, and incubated for 48 h at 37ºC. Candida spp. and coagulase-positive staphylococci were identified by phenotypic tests, C. dubliniensis, by multiplex PCR, and coagulase-negative staphylococci, Enterobacteriaceae and Pseudomonas spp., by the API systems. The... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Tuberculosis; Candida; Enterobacteriaceae; Pseudomonas spp; Staphylococcus. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822011000400012 |
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| Abreu,Afonso Gomes; Marques,Sirlei Garcia; Monteiro-Neto,Valério; Gonçalves,Azizedite Guedes. |
| The number of ESBL-producing Enterobacteriaceae in community-acquired urinary tract infections worldwide is probably underestimated because of the technical difficulties encountered with their detection. In this study, out of 5,672 urine samples analyzed, 916 were positive for uropathogens, 472 of them being enterobacteria of which 7.6% produced β-lactamases. Analysis of the isolated from 36 patients showed a high level of antibiotic resistance, with 52.7% and 80.5% of isolates expressing blaTEM and blaCTX-M, respectively. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Enterobacteriaceae; Antimicrobial resistance; ESBL; Community-acquired infections. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822013000200020 |
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| Oliveira,Caio Fernando de; Salla,Adenilde; Lara,Valéria Maria; Rieger,Alexandre; Horta,Jorge André; Alves,Sydney Hartz. |
| The emergence of Extended-Spectrum Beta-Lactamase (ESBL)-producing microorganisms in Brazilian hospitals is a challenge that concerns scientists, clinicians and healthcare institutions due to the serious risk they pose to confined patients. The goal of this study was the detection of ESBL production by clinical strains of Escherichia coli and Klebsiella sp. isolated from pus, urine and blood of patients at Hospital Universitário Santa Maria, Rio Grande Sul, RS, Brazil and the genotyping of the isolates based on bla SHV genes. The ESBL study was carried out using the Combined Disc Method, while Polymerase Chain Reaction (PCR) was used to study the bla SHV genes. Of the 90 tested isolates, 55 (61.1%) were identified as ESBL-producing by the combined disk... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: ESBL; Enterobacteriaceae; Prevalence; PCR. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822010000200002 |
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| Registros recuperados: 51 | |
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