4 documents found, page 1 of 1
Utilização do gastrópode aquático Physa acuta em ensaios in situ
Saraiva, Maria J.; Puga, João R.; Ré, Ana; Campos, Isabel; Gonçalves, Fernando; Keizer, Jan Jacob; Abrantes, NelsonOs ensaios in situ constituem uma ferramenta efetiva e ambientalmente relevante de avaliação de efeitos ecotoxicológicos, permitindo estabelecer relações causa-efeito em ambientes aquáticos sujeitos a vários agentes de stress. Entre as várias espécies aquáticas utilizadas neste tipo de testes, o gastrópode Physa acuta assume-se como um potencial organismo teste, permitindo, para além da avaliação de efeitos let...
Three mammal species distinction through the analysis of scats chemical composi...
Saraiva, Maria J.; Salvador, Ângelo C.; Fernandes, Tony; Ferreira, Joaquim P.; Barros, António S.; Rocha, Sílvia M.; Fonseca, CarlosIn the last years, new approaches use scats analysis in ecological studies, like gas chromatographic techniques, has been developed. The aim of this study is to use VOCs (volatile organic compounds) released from scats to distinguish three mammal species: the ungulates red and fallow deer and the carnivore Eurasian otter through the application of SPME/GC??GC-ToFMS. This chromatographic technique has never been...
Transthyretin: No association between serum levels or gene variants and schizop...
Ruano, Dina; Macedo, António; Soares, Maria J.; Valente, José; Azevedo, Maria H.; Hutz, Mara H.; Gama, Clarissa S.; Lobato, Maria I.It has been proposed that schizophrenia results from an environmental insult in genetically predisposed individuals. Environmental factors capable of modulating transcriptional activity and their carriers could link the genetic and environmental components of schizophrenia. Among these is transthyretin (TTR), a major carrier of thyroid hormones and retinol-binding protein (RBP). Retinoids and thyroid hormones r...
Transthyretin: no association between serum levels or gene variants and schizop...
Ruano, Dina; Macedo, António; Soares, Maria J.; Valente, José; Azevedo, Maria H.; Hutz, Mara H.; Gama, Clarissa S.; Lobato, Maria I.It has been proposed that schizophrenia results from an environmental insult in genetically predisposed individuals. Environmental factors capable of modulating transcriptional activity and their carriers could link the genetic and environmental components of schizophrenia. Among these is transthyretin (TTR), a major carrier of thyroid hormones and retinol-binding protein (RBP). Retinoids and thyroid hormones r...