Detección de Chlamydia trachomatis por enzimo inmunoensayo con anticuerpos monoclonales en mujeres sexualmente activas / Detection of chlamydia trachomatis by enzyme immunoassay with monoclonal antibodies in sexualy active women

El objetivo de este trabajo fue evaluar la prevalencia de las infecciones producidas por Chlamydia trochomatis en pacientes que concurrieron al servicio de Ginecología. Se estudiaron 369 pacientes mujeres, sexualmente activas que consultaron por presencia de flujo y/o síntomas de cervicitis. Para la detección de antígenos clamidiales se usó un enzimoinmunoensayo con anticuerpos monoclonales específicos (Chlamyfast). La prevalencia de las infecciones por C. trachomatis en la población estudiada fue del 15,17 por ciento (56/369). El 71,4 por ciento (40/56) de las mujeres fueron sintomáticas y el 28,6 por ciento (16/56), asintomáticas (P < 0,00001). La mayor incidencia se observó en el grupo de mujeres cuyas edades oscilaron entre 21 y 30 años (21/149)

Actividad antibacteriana in vitro de isoxazolilnaftoquinonas. I / [In vitro antibacterial activity of isoxazolyl++ naphthoquinones. I]

The in vitro antibacterial activity of 2-hydroxy-N-(3,4-dimethyl-5-isoxazolyl) 1,4 naphthoquinone-4-imine (I) and three of this derivatives against Staphylococcus aureus, Escherichia coli, Pseudomonas aeruginosa, Proteus mirabilis y Morganella morganii was investigated. From the four naphthoquinone-imine studied, compound I exhibited activity against S. aureus. This effect was observed even in oxygen atmosphere with 5

CO2 and in the presence of human albumin. The development of drug-resistant strains by serial passage in media with concentrations lower than the C.I.M. was determined in 31 strains of S. aureus from clinical material and one from collection. No significant differences in C.I.M. were observed.

Utilización por Escherichia coli y Pseudomonas fluorescens de un sideróforo de Pseudomonas fluorescens cepa PAB / [Utilization by Escherichia coli and Pseudomonas fluorescens of a siderophore from Pseudomonas fluorescens strain PAB]

Pseudomonas fluorescens PAB strain produced pyoverdine in a synthetic medium. Pigment was purified by solvent extraction and ion exchange, and sterilized and used as siderophore for E. coli, P. fluorescens, ATCC 13.525, ATCC 17.400, W and PAB strains. Bacteria were grown in iron-free medium and medium with iron. Free--pyoverdine and pyoverdine bound to Fe+3 were added in different concentrations. P. fluorescens PAB siderophore did not stimulate E. coli growth while it was selective for other P. fluorescens strains. Paper disks impregnated with pyoverdine did not inhibit E. coli growth.

Utilización por Escherichia coli y Pseudomonas fluorescens de un sideróforo de Pseudomonas fluorescens cepa PAB / [Utilization by Escherichia coli and Pseudomonas fluorescens of a siderophore from Pseudomonas fluorescens strain PAB]

Pseudomonas fluorescens PAB strain produced pyoverdine in a synthetic medium. Pigment was purified by solvent extraction and ion exchange, and sterilized and used as siderophore for E. coli, P. fluorescens, ATCC 13.525, ATCC 17.400, W and PAB strains. Bacteria were grown in iron-free medium and medium with iron. Free--pyoverdine and pyoverdine bound to Fe+3 were added in different concentrations. P. fluorescens PAB siderophore did not stimulate E. coli growth while it was selective for other P. fluorescens strains. Paper disks impregnated with pyoverdine did not inhibit E. coli growth.