Sugérese que la hiperuricema sea un factor de riesgo cardiovascular en humanos adultos con síndrome metabólico (SM) El polimorfismo C677T en el gen metilenotetrahidrofolato reductasa (MTHFR) ha sido asociado com la hiperuricemia. Datos sobre los factores asociados con la uricemia en humanos adultos con SM genotipados para el polimorfismo C677T en el gen MTHFR son inexistentes. Se objetivó inves...

Observaciones recientes con el HST sugieren que la NLR de las galaxias Seyfert puede ser el resultado de la interacción entre un chorro de plasma y un medio inhomogéneo. Con esta idea hacemos simulaciones numéricas de la colisión de un chorro radiativo con una nube densa. Se utiliza un código hidrodinámico con un tratamiento simple de los procesos radiativos, que permite estudiar los detalles d...

En este artículo, presentamos construcciones teóricas de funciones Booleanas de rotación simétrica (RSBFs por sus siglas en inglés) con un número impar de variables y con máxima inmunidad algebraica. Con el objeto de obtener funciones Booleanas de muy alta no linealidad, generalizamos nuestra construcción a una técnica de búsqueda en la clase RSBF. Presentamos así RSBFs con inmunidad algebraica...

OBJECTIVES To compare the optic nerve head (ONH) structure between compressive optic neuropathy (CON) and glaucomatous optic neuropathy (GON), and to determine whether selected ONH quantitative parameters effectively discriminate between GON and CON, especially CON cases presenting with a glaucoma-like disc. METHODS We prospectively assessed 34 patients with CON, 34 age-matched patients with ...

Tra c engineering involves tuning a network's path-selection, link-scheduling, and bu ermanagement policies to the prevailing tra c demands and performance requirements. E ective tra c engineering requires an accurate, network-wide view of the con guration of the routers. However, network operators have limited tools to aid in con guring large backbone networks. Con guring IP routers is extreme...

Between 30 and 50% of pig lymphocyte plasma membrane vesicles were not bound by concanavalin A (Con A)-Sepharose. Various results suggest that the Con A-unretarded fraction represents "inside-out" membrane vesicles. First, an alternative cell surface ligand, anti-lymphocytic serum, gave a similar fractionation to Con A. Second, lack of binding by Con A was not due to lack of carbohydrate or to ...

Conantokin G (Con G), derived from the venom of Conus geographus, is the most characterized natural peptide antagonist targeted to NMDA receptors. Although Con G is known to bind to the glutamate binding site on the NR2 subunit of the receptor, it is unclear whether it can allosterically modulate the function of the receptor through the glycine binding site on the NR1 subunit. The present study...

We have investigated suppressor T-cell activity in female NZB/NZW F1 mice using PWM-driven IgM biosynthesis in vitro as an indicator system. In initial we studied we observed that spleen cells from normal mice (BALB/c, C57BL/6), as well as from young (4 wk) and adult (18 wk) NZB/NZW mice, cultured in the presence of PWM synthesize 860 +/- 120 ng IgM/10(6) cells/7 days. However, when Con A (at 2...

OBJECTIVE The aim of this study was to investigate the effects of different phytosterols and their analogs on colonic mucosal cell proliferation in hamsters. METHOD Hamsters (n=70) were randomly assigned to seven groups after a 2-week acclimation and fed the experimental diet for 5 weeks. Diets included (i) the semipurified diet with no cholesterol (Con), (ii) the Con diet plus 0.25% choleste...

The objectives of this study were to evaluate the effects of feeding dried distillers grains plus solubles (DDGS) from different sources on milk production and composition in dairy cows. Eight multiparous and 4 primiparous Holstein cows were used in a replicated 4 x 4 Latin square design with 28-d periods. Treatments consisted of total mixed diets containing no DDGS (CON), or DDGS from source 1...