21 research outputs found
Energetic status of crossbreed dairy cows during transition period in two different seasons
Indicadores do ambiente ruminal e suas relações com a composição do leite e células somáticas em diferentes períodos da primeira fase da lactação em vacas de alta produção
Long term dietary deficiency in steers: vital functions and T3 and IGF-1 relationships
Nanoparticles for Applications in Cellular Imaging
In the following review we discuss several types of nanoparticles (such as TiO2, quantum dots, and gold nanoparticles) and their impact on the ability to image biological components in fixed cells. The review also discusses factors influencing nanoparticle imaging and uptake in live cells in vitro. Due to their unique size-dependent properties nanoparticles offer numerous advantages over traditional dyes and proteins. For example, the photostability, narrow emission peak, and ability to rationally modify both the size and surface chemistry of Quantum Dots allow for simultaneous analyses of multiple targets within the same cell. On the other hand, the surface characteristics of nanometer sized TiO2allow efficient conjugation to nucleic acids which enables their retention in specific subcellular compartments. We discuss cellular uptake mechanisms for the internalization of nanoparticles and studies showing the influence of nanoparticle size and charge and the cell type targeted on nanoparticle uptake. The predominant nanoparticle uptake mechanisms include clathrin-dependent mechanisms, macropinocytosis, and phagocytosis
Actividad sanguínea de superóxido dismutasa y glutatión peroxidasa en novillas a pastoreo
Copper and selenium supplementation in the diet of Brangus steers on the nutritional characteristics of meat
Histological changes of the liver and metabolic correlates in ewes with pregnancy toxemia
Hematological, biochemical and ruminant parameters for diagnosis of left displacement of the abomasum in dairy cows from Southern Brazil
Efeito do uso da proteina de soja na alimentação de bezerros sobre a mucosa do intestino delgado.
Determinar possíveis reações alergicasa causadas pelo uso de proteinas de soja em sucedaneos do leite para bezerros