Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 6 de 6
Filtrar
Mais filtros










Intervalo de ano de publicação
3.
Rev. esp. quimioter ; 29(6): 328-331, dic. 2016. ilus
Artigo em Espanhol | IBECS | ID: ibc-158227

RESUMO

Se ha diseñado un dispositivo de nueva invención que combina recogida, transporte, cultivo y detección del estreptococo del grupo B (EGB) sin necesidad de procesamiento ni manipulaciones intermedias, de manera que simplifique todo el proceso. El objetivo ha sido evaluar el rendimiento y utilidad de dicho dispositivo en la detección del EGB en mujeres embarazadas. Se comparó el nuevo prototipo en paralelo con la siembra directa de las muestras vagino-rectales en el medio sólido Granada en placas tradicionales. Mediante la siembra directa se detectaron 124 muestras positivas de 600 (20,6%). Mediante el nuevo dispositivo se detectaron las mismas que en siembra directa y además 10 adicionales 134/600 (22,3%). La utilización del nuevo dispositivo podría ser considerada en la práctica clínica asistencial de rutina para el cribado del EGB mediante previo acuerdo de comercialización (AU)


We have designed a new device that combines sample collection, transportation, culture and detection of Group B Streptococcus (GBS), requiring no additional processing in the clinical laboratory. The objective was to evaluate the performance of this device for GBS detection in pregnant women. The new prototype was compared to direct plating of vaginal-rectal swabs onto Granada solid media plates. Direct plating method detected 124 positive samples out of 600 (20.6%) whereas the new device detected 10 additional positive samples (134/600, 22.3%). This new device (patent-protected) could be considered for routine GBS screening (AU)


Assuntos
Humanos , Feminino , Gravidez , Adulto , Infecções Estreptocócicas/diagnóstico , Estreptococos Viridans/isolamento & purificação , 51654/métodos , Streptococcus/classificação , Complicações na Gravidez/diagnóstico , Programas de Rastreamento/métodos , Bacteroides fragilis , Bacteroides fragilis/isolamento & purificação , Infecções por Bacteroides/diagnóstico , Infecções por Bacteroides/tratamento farmacológico
4.
Rev. esp. quimioter ; 23(2): 76-80, jun. 2010. tab, ilus
Artigo em Espanhol | IBECS | ID: ibc-79903

RESUMO

Introducción. Tigeciclina puede suponer una alternativaterapéutica para el control de A. baumannii multirresistentes, sibien no existe consenso en cuanto a los puntos de corte desensibilidad ni a la variabilidad de su CMI en función del mediode cultivo utilizado para realizar el antibiograma frente a estemicroorganismo. Por ello, nuestro objetivo ha sido verificardicha variabilidad, así como proponer el medio de cultivo quemás se aproxime al método estándar.Métodos. Se seleccionaron 41 cepas de A. baumanniicarbapenem-resistentes. Se analizó la sensibilidad frente atigeciclina en diferentes medios de cultivo: Mueller Hinton agarcomercial de Oxoid (MH-C); Mueller Hinton agar fresco de BDand Co, USA (MH-F) e ISO-sensitest agar en fresco de Oxoid,utilizando la técnica de E-test y disco. Las CMIs se compararonfrente a las obtenidas mediante la técnica estándar demacrodilución.Resultados. La CMI y halos de inhibición medios obtenidosen los diferentes medios de cultivos correspondieron a 9,26mg/L y 15,1 mm de diámetro para MH-C; 1,71 mg/L y 22,7 mmpara MH-F; 2,68 mg/L y 20,8 mm para ISO-sensitest. La CMImedia obtenida mediante el método estándar de dilución fuede 0,47 mg/L (SD=0,21), con rango entre 0,25 a 1 mg/L.Conclusión. En los tres medios de cultivo estudiados, seobservan CMIs superiores al estándar, lo que supone interpretarfalsas resistencias en muchos casos. No obstante, el medio quese aproxima más al de referencia es el MH-F(AU)


Introduction. The tigecycline may represent a therapeuticalternative for the control of multiresistant A.baumannii, although there is no consensus regarding thecutoff points for sensitivity or variability of MIC as afunction of culture medium used for the antibiogramagainst this microorganism. Therefore, our objective wasto verify this variability, and propose the culture mediumthat comes closest to the standard method.Methods. We selected 41 strains of carbapenem-resistantA. baumannii. We analyzed the sensitivity to tigecyclinein different culture medium: Mueller Hintonagar Oxoid commercial (C-MH), Mueller Hinton freshagar BD and Co., USA (F-MH) and ISO-sensitest freshagar Oxoid, using the E-test and disk. The MICs werecompared against those obtained using the techniquestandard of macrodilution.Results. The mean MIC and inhibition diameters obtainedin the different culture medium corresponded to9.26 mg/L and 15.1 mm in diameter for MH-C, 1.71mg/L and 22.7 mm for MH-F; 2.68 mg/L and 20.8 mmfor ISO-sensitest. Half the MIC obtained by the standardmethod of dilution was 0.47 mg/L (SD = 0.21), with valuesbetween 0.25 and 1 mg/L.Conclusion. In the three growth media studied, MICssuperior to the standard are observed, which is false tointerpret resistance in many cases. However, the mediumthat comes closer more that of reference is the MH-F(AU)


Assuntos
Minociclina/isolamento & purificação , Minociclina/farmacocinética , Testes de Sensibilidade Microbiana/métodos , Testes de Sensibilidade Microbiana/tendências , Sensibilidade e Especificidade , Acinetobacter , Acinetobacter baumannii , Acinetobacter baumannii/isolamento & purificação , Meios de Cultura/isolamento & purificação , Minociclina/farmacologia , Acinetobacter/isolamento & purificação , Acinetobacter/metabolismo , Minociclina/uso terapêutico , Acinetobacter baumannii/metabolismo , Acinetobacter baumannii/patogenicidade , Meios de Cultura/química , Meios de Cultura/síntese química , Meios de Cultura/farmacologia , Testes de Sensibilidade Microbiana
5.
Rev. esp. quimioter ; 22(4): 214-220, dic. 2009. tab, ilus
Artigo em Espanhol | IBECS | ID: ibc-75213

RESUMO

Introducción: Nuestro objetivo ha sido evaluar la aplicaciónde técnicas moleculares en la vigilancia de gripe, así comodescribir características clínicas y epidemiológicas de los casosdiagnosticados en las temporadas 2007-2008 y 2008-2009.Métodos: se analizaron 183 frotis faríngeos procedentesde otros tantos pacientes remitidos al laboratorio de virologíapor la Red de Médicos Centinelas de Castilla y León, para el estudiode virus gripales mediante la técnica de shell-vial y RTPCRmúltiple capaz de detectar de forma simultánea, virus gripalesA, B, C, virus respiratorio sincitial A, B y adenovirus.Resultados: Mediante cultivo celular se aislaron 17 virusgripales A y 19 virus gripales B (19,7% del total). Por RT-PCRmúltiple, se detectaron 49 virus gripales A, 29 virus gripales B,un virus gripal C, 3 virus sincitiales tipo A u otro B y 6 adenovirus,(44,3% del total). Todos los virus gripales aislados por cultivocelular se detectaron mediante RT-PCR. Por RT-PCR se detectaron5 coinfecciones, que supuso un 6,25% decoinfecciones sobre las muestras positivas. La edad media delos pacientes fue de 29 años (SD=21,07). La proporción de mujeresy hombres correspondió al 43,7% y 56,3% respectivamente.El número de casos diagnosticados en relación a laedad sigue un patrón de correlación lineal negativa.Conclusiones: La RT-PCR se presenta como una herramientaútil para la vigilancia epidemiológica de la gripe permitiendoademás subtipar los virus gripales y detectar otros virusimplicados en procesos respiratorios de forma simultánea(AU)


Introduction: Our objective was to evaluate the applicationof molecular techniques in the surveillance ofinfluenza, and to describe clinical and epidemiologicalcharacteristics of cases diagnosed in 2007-2008 and2008-2009 seasons.Methods: We analyzed 183 pharyngeal swabs fromthe same number of patients referred to the virology laboratoryof the Sentinel Physician Network of Castilla yLeon, the study of influenza viruses by shell-vial techniqueand RT-PCR capable of detecting multiple Simultaneously,influenza virus A, B, C, respiratory syncytial virusA, B and adenovirus.Results: Using cell culture were isolated 17 influenzaA viruses and 19 influenza B viruses (19.7% of total). Bymultiple RT-PCR, was detected 49 influenza A virus, 29influenza B virus, an influenza virus C, 3 syncytial virustype A and other B and 6 adenoviruses (44.3% of total).All influenza viruses isolated in cell culture was detectedby RT-PCR. RT-PCR by 5 co-infections were detected,which represented a 6.25% of co-infections on the wholeof positive samples. The average age of patients was 29years (SD = 21.07). The proportion of women and menaccounted for 43.7% and 56.3% respectively. The numberof cases diagnosed in relation to age follows a patternof negative linear correlation.Conclusions: RT-PCR is revealed as an useful toolfor epidemiological surveillance of influenza, allowingalso to detect viral subtypes along with other viruses involvedin respiratory infections(AU9


Assuntos
Humanos , Masculino , Feminino , Pessoa de Meia-Idade , Monitoramento Epidemiológico/normas , Monitoramento Epidemiológico , Influenza Humana/diagnóstico , Influenza Humana/epidemiologia , Biologia Molecular/métodos , Virologia/métodos , Virologia/normas , Virologia/tendências , Infecções Respiratórias/complicações , Infecções Respiratórias/diagnóstico , Infecções Respiratórias/prevenção & controle
6.
Rev Esp Quimioter ; 22(4): 214-20, 2009 Dec.
Artigo em Espanhol | MEDLINE | ID: mdl-20082043

RESUMO

INTRODUCTION: Our objective was to evaluate the application of molecular techniques in the surveillance of influenza, and to describe clinical and epidemiological characteristics of cases diagnosed in 2007-2008 and 2008-2009 seasons. METHODS: We analyzed 183 pharyngeal swabs from the same number of patients referred to the virology laboratory of the Sentinel Physician Network of Castilla y Leon, the study of influenza viruses by shell-vial technique and RT-PCR capable of detecting multiple Simultaneously, influenza virus A, B, C, respiratory syncytial virus A, B and adenovirus. RESULTS: Using cell culture were isolated 17 influenza A viruses and 19 influenza B viruses (19.7% of total). By multiple RT-PCR, was detected 49 influenza A virus, 29 influenza B virus, an influenza virus C, 3 syncytial virus type A and other B and 6 adenoviruses (44.3% of total). All influenza viruses isolated in cell culture was detected by RT-PCR. RT-PCR by 5 co-infections were detected, which represented a 6.25% of co-infections on the whole of positive samples. The average age of patients was 29 years (SD = 21.07). The proportion of women and men accounted for 43.7% and 56.3% respectively. The number of cases diagnosed in relation to age follows a pattern of negative linear correlation. CONCLUSIONS: RT-PCR is revealed as an useful tool for epidemiological surveillance of influenza, allowing also to detect viral subtypes along with other viruses involved in respiratory infections.


Assuntos
Influenza Humana/diagnóstico , Influenza Humana/epidemiologia , Orthomyxoviridae/genética , Vigilância da População/métodos , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Criança , Pré-Escolar , Feminino , Humanos , Influenza Humana/virologia , Masculino , Pessoa de Meia-Idade , RNA Viral/genética , Reação em Cadeia da Polimerase Via Transcriptase Reversa , Adulto Jovem
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA
...