Salmonella Typhimurium is attracting world wide attention as it continues to cause foodborne illness to human beings. The organism is resistant to a wide range of anti-infectious agents and as a result the illness is more difficult to treat. The objective of this study was to analyze the expression of specific virulence and stress genes (hilA and rpoS) in Salmonella Typhimurium at various nutri...

En este texto se examina el fructífero diálogo sobre la naturaleza de historia consignado en Diario lectura que lleva Ernesto Volkening (1908-1983) los Escolios Nicolás Gómez Dávila (1913-1994). Entre escolios y comentarios hila una concepción que, a pesar ser fragmentaria, guarda auspiciosa coherencia. El historiador, hecho histórico individuo son conceptos centrales respecto cuales compone pe...

Los caudales de agua riego se han medido tradicionalmente en Valencia mediante una medida aforo llamada fila, la que hasta ahora desconocía su verdadera naturaleza y valor, a pesar ser un tema ampliamente discutido desde hace siglos. En este artículo plantea solución esta discusión, estableciéndose fila o hila, herencia andalusí, tenía triple condición según cantidad disponible. Así, habitualme...

There has been much debate as to whether muscle is present in normal lymph nodes and, if so, where. There are few records of muscle in abnormal lymph nodes. An incidental observation of muscular proliferation (Lott and Davies, this Journal, 1983, 98, 90-91) in an axillary node draining breast carcinoma prompted this further investigation. Examination by dissection microscopy and at higher magni...

Complex oligosaccharides from human milk (HMO) possess an antimicrobial activity and can promote the growth of bifidobacteria such as Bifidobacterium bifidum and Bifidobacterium longum subsp. infantis. In addition, fermentation of carbohydrates by bifidobacteria can result in the production of metabolites presenting an antivirulence effect on several pathogenic bacteria. Whey is rich in complex...

Nontyphoidal Salmonella species cause gastrointestinal disease worldwide. The prevailing theory of Salmonella enteropathogenesis is that bacterial invasion of the intestinal epithelium is essential for virulence and that this requires the virulence-associated genomic region Salmonella pathogenicity island 1 (SPI-1). Recent studies of Salmonella enterica infection models have demonstrated that e...