Técnicas de ahorro de sangre en cirugía ortopédica

La cirugía ortopédica está asociada con frecuencia a la necesidad de transfusión de sangre homóloga, con los consiguientes riesgos que ello conlleva. En la actualidad se resalta la importancia de la disminución tanto de la transfusión como de la sobretransfusión en este tipo de cirugía. Dicho objetivo se puede alcanzar con el empleo de diversas técnicas de ahorro de sangre, que incluyan la potenciación del uso de sangre antóloga de métodos para disminuir el sangrado perioperatorio. La máxima eficacia para disminuir la necesidad de transfusión de sangre homóloga se deriva de la combinación de varias técnicas de ahorro, como son los programas de autotransfusión, la hipotensión controlada y el…

Identification of a putative regulator of early-histone gene expression of Paracentrotus lividus

Drosophila GAGA factor (GAF) is a nuclear protein, conserved along evolution, with multiple roles in gene regulation, chromatin remodelling, Polycomb-dependent silencing, and insulator functions (1). GAF recognizes and specifically binds GAGAG consensus DNA motif by its C2H2-type zinc-finger domain, and interacts with other regulatory factors by its BTB/POZ domain. We have identified plGaga, a cDNA coding for a putative GAF of the sea urchin P. lividus, which showed significant sequence similarity with Drosophila and vertebrate GAFs. Real time RT-PCR revealed that the plGaga RNA is always present during embryo development decreasing rapidly in abundance at the larval pluteus stage. We raise…

Investigating soil-plant relationships for sustainable management of irrigation with saline water in a Sicilian vineyard.

Water demand is increasing worldwide. In regions affected by water scarcity such as those located in the Mediterranean basin, water supplies are already degraded, or subjected to degradation processes, which worsen the shortage of water. In such regions, competition for scarce water resources among users will inevitably reduce the supplies of freshwater available for crop irrigation. Detailed studies and experimental projects are needed to develop management scenarios aimed at preventing desertification and conflicts for use of the increasingly limited water resources and cultivable land. This paper illustrates soil-plant responses to irrigation with saline water in a Sicilian vineyard loca…

Monitoring soil salinization as a strategy for preventing land degradation: a case study in Sicily