Your browser doesn't support javascript.
loading
Show: 20 | 50 | 100
Resultados 1 - 10 de 10
Filtrar
1.
FEMS Microbiol Lett ; 196(2): 229-34, 2001 Mar 15.
Artículo en Inglés | MEDLINE | ID: mdl-11267784

RESUMEN

The reporter gene xylE (encoding catechol 2,3-dioxygenase) has been modified for a more rational use in Streptomyces. Two reporter fragments, one containing xylE, and the other containing also the upstream gene xylT (which encodes a soluble ferredoxin), have been constructed to allow precise fusion of regulatory regions to the reporter genes. Identical fusions of these xylE and xylTE reporter fragments to the Streptomyces dagA and tipA promoters, in low and high copy number plasmids, show that the levels of xylE mRNA and catechol 2,3-dioxygenase activities are significantly higher when xylT is present.


Asunto(s)
Proteínas Bacterianas , Dioxigenasas , Ferredoxinas/genética , Genes Reporteros , Oxigenasas/genética , Streptomyces griseus/genética , Secuencia de Bases , Catecol 2,3-Dioxigenasa , ADN Bacteriano/química , Ferredoxinas/aislamiento & purificación , Ferredoxinas/fisiología , Regulación Bacteriana de la Expresión Génica , Vectores Genéticos , Datos de Secuencia Molecular , Oxigenasas/aislamiento & purificación , Regiones Promotoras Genéticas , Mapeo Restrictivo , Streptomyces/genética , Streptomyces/metabolismo , Streptomyces griseus/metabolismo
5.
Eur J Anaesthesiol ; 23(12): 1031-6, 2006 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-16824237

RESUMEN

BACKGROUND AND OBJECTIVES: To analyse the prevalence of positive prick-tests to all medicaments normally checked in allergy units when a patient is suspected of being allergic to anaesthetics. To establish the degree of agreement between the antecedents of a previous history of an allergic reaction to a medicament and the positive result, or not, to the specific prick-test for the said medicament. METHODS: This was a prospective study, during 2003 and 2004, which analysed 473 patients referred by their doctors to allergy units to make retrospective diagnoses of an allergy to a drug. The prick-test was done using the undiluted drug. All patients were tested for 41 drugs. These include antibiotics, trimethoprim-sulphamethoxazole, non-steroidal anti-inflammatory drugs (NSAIDs) and perioperative drugs (PD): neuromuscular blocking drugs, latex, iodine, local anaesthetics, hypnotics, opioids and coadjuvants. Cohen's Kappa Index was used to determine the degree of agreement. RESULTS: 71.5% of patients studied presented a positive prick-test. The largest number of positive cases was found in antibiotics (56.4%), followed by PD (15.6%), NSAIDs (14.4%) and trimethoprim-sulphamethoxazole (12.7%). Among PD, the highest prevalence of positive prick-tests was found for neuromuscular blocking drugs (5.3%). Agreement between the substance suspected of causing the allergic reaction and the positive prick-test was excellent for penicillin (Kappa = 0.74) and other antibiotics (Kappa = 0.721) and good for NSAIDs (Kappa = 0.47) and iodine (Kappa = 0.54). CONCLUSIONS: The prevalence of patients with positive prick-tests to PD occurred in 15.6% in this prospective cohort. Neuromuscular blocking drugs were found to have the highest prevalence of positive prick-tests. There is positive agreement when the substance responsible for the allergic reaction is suspected, otherwise agreement is low.


Asunto(s)
Anestesiología/métodos , Anestésicos/farmacología , Hipersensibilidad a las Drogas/diagnóstico , Hipersensibilidad Inmediata/diagnóstico , Pruebas Cutáneas/métodos , Adulto , Anciano , Alergia e Inmunología , Anafilaxia , Antiinflamatorios no Esteroideos/farmacología , Femenino , Humanos , Masculino , Persona de Mediana Edad , Estudios Prospectivos
6.
Allergy ; 61(8): 952-3, 2006 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-16867048

RESUMEN

Prevalence of patients with positive prick tests to anaesthetics occurred in 4.7% of the surgical population.


Asunto(s)
Anestésicos/efectos adversos , Hipersensibilidad a las Drogas/epidemiología , Adolescente , Adulto , Femenino , Humanos , Masculino , Persona de Mediana Edad , Prevalencia , Estudios Prospectivos , Pruebas Cutáneas/métodos , España
10.
Medicina (Guayaquil) ; 2(4): 226-32, 1996. graf
Artículo en Español | LILACS | ID: lil-235481

RESUMEN

Comenta que en el período de ene. de 1993 a dic. 1995 en el Hospital de Niños Alejandro Mann de Guayaquil, los ingresos hospitalarios fueron de 16990 pacientes; donde 486 (2.86xciento) tuvieron diagnóstico de cardiopatia, de los cuales 429 (88.27xciento) correspondieron a cardiopatías congénitas y de éstas 125 (29.13xciento) a cardiopatías congénitas cianóticas. Se describen los datos principales de 125 pacientes de diferentes edades pediátricas portadores de cardiopatias congénicas cianóticas internados en el departamento de cardiología. La tetralogía de Fallot fue la cardiopatía congénita cianótica más frecuente 42,4xciento, seguida de la transposición de los grandes vasos 17.6xciento, pulmonar 9.6xciento, 45 pacientes (36xciento) fueron intervenidos quirúrgicamente, de los cuales 43 en forma paliativa y correctiva total...


Asunto(s)
Humanos , Cardiopatías Congénitas , Tetralogía de Fallot , Ecuador , Hospitales Pediátricos , Pacientes
SELECCIÓN DE REFERENCIAS
Detalles de la búsqueda