11 documents found, page 1 of 2

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sFlt-1/PlGF Ratio for the Predictive Diagnosis of Preeclampsia: Budget Impact A...

Campos, A; Machado, AP; Martins, H; José Pais, MS; Érsek, K; Lopes, N

Overview and Aims: The last decade brought relevant insights into the pathophysiology of preeclampsia (PE), namely the role of the circulating levels of placental growth factor (PlGF) and soluble Fms-like tyrosine kinase-1 (sFlt-1). The purpose of this study is to estimate the financial impact of introducing the sFlt-1/PlGF ratio for the evaluation of women with suspicion of PE in the Portuguese National Health...


Expression and clinical relevance of SOX9 in gastric cancer

Mesquita, P; Freire, AF; Lopes, N; Gomes, R; Azevedo, D; Barros, R; Pereira, B; Cavadas, B; Pópulo, H; Boaventura, P; David, L; Pereira, L; Almeida, R

Gastric cancer is one of the most frequent tumours and the third leading cause of cancer-related death worldwide. The investigation of new biomarkers that can predict patient outcome more accurately and allow better treatment and follow-up decisions is of crucial importance. SOX9 (sex-determining region Y (SRY)-box 9) is a regulator of cell fate decisions in embryogenesis and adulthood. Here, we sought to ascer...


Synthesis of Bio-fuel Additives From Glycerol Over Poly(Vinyl Alcohol) With Sul...

Castanheiro, J; Lopes, N; Caiado, M; Canhão, P

Condensation of glycerol with acetone was carried out over poly(vinyl alcohol) with sulfonic acid groups at 70°C. The main product of glycerol acetalization is solketal. Catalysts with different amounts of sulfonic acid groups were prepared. It was observed that the catalytic activity increases with the crosslinking degree, due to the increases of the amount of sulfonic acid groups on poly(vinyl alcohol). Furth...








Conversion of Glycerol into Bio-Fuel Additives over Heterogeneous Catalysts

Caiado, M; Lopes, N; Carlota, S; Castanheiro, J

Biodiesel is produced from vegetable oils and animal fats, by transesterification of triglycerides and esterification of free fatty acids with methanol or ethanol, in presence of acid or basic catalysts. The glycerol is a by-product in the biodiesel production. For every 9 kg of biodiesel produced, about 1 kg of a crude glycerol is formed. Due to the increase of biodiesel production, an increase of glycerol pro...


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