10 documents found, page 1 of 1
Physical and chemical tagging methods for the sea urchin Paracentrotus lividus ...
Santos, PM; Quintella, B; Jacinto, David; Gomes, A; Saldanha, C; Lourenço, S; Lopes, P; Correia, MJ; Mateus, D; Cruz, T; Pombo, A; Costa, JLThe sea urchin Paracentrotus lividus (Lamarck, 1816) (Echinodermata: Echinoidea) is an important economic resource in Europe, but intense harvesting has led to the collapse of several natural populations. Echinoculture, associated with restocking and stock enhancement practices, is an alternative to this problem. In these procedures, reliable individual identification through tagging is a valuable source of inf...
Budget impact analysis of cervical cancer screening in Portugal: comparison of ...
Pista, A; Costa, C; Saldanha, C; Moutinho, JA; Moutinho, JM; Arrobas, F; Catalão, C; Kempers, JBACKGROUND: Primary Human Papilloma Virus (HPV) testing is the currently recommended cervical cancer (CxCa) screening strategy by the Portuguese Society of Gynecology (SPG) clinical consensus. However, primary HPV testing has not yet been adopted by the Portuguese organized screening programs. This modelling study compares clinical benefits and costs of replacing the current practice, namely cytology with ASCUS...
Stratification of ST-Elevation Myocardial Infarction Patients Based on Soluble ...
Napoleão, P; Cabral, L; Selas, M; Freixo, C; Monteiro, MC; Criado, MB; Costa, M; Enguita, F; Viegas-Crespo, AM; Saldanha, C; Mota Carmo, MInvolvement of soluble CD40 ligand (sCD40L) in thrombosis and inflammation on the context of coronary artery disease is currently being revised. In that perspective, we had studied the association of sCD40L with markers of platelet activation and markers of endothelial and vascular function. On that cohort, a stratification of patients with acute myocardial infarction (AMI) 1 month after percutaneous coronary i...
Changes of Soluble CD40 Ligand in the Progression of Acute Myocardial Infarctio...
Napoleão, P; Monteiro, MC; Cabral, L; Criado, MB; Ramos, C; Selas, M; Viegas-Crespo, AM; Saldanha, C; Mota Carmo, M; Cruz Ferreira, R; Pinheiro, TReported in vitro data implicated soluble CD40 ligand (sCD40L) in endothelial dysfunction and angiogenesis. However, whether sCD40L could exert that influence in endothelial dysfunction and angiogenesis after injury in acute myocardial infarction (AMI) patients remains unclear. In the present study, we evaluated the association of sCD40L with markers of platelet activation, endothelial, and vascular function du...
Behaviour of human erythrocyte aggregation in presence of autologous lipoproteins
Saldanha, C; Loureiro, J; Moreira, C; Silva, JThe aim of this work was to evaluate in vitro the effect of autologous plasma lipoprotein subfractions on erythrocyte tendency to aggregate. Aliquots of human blood samples were enriched or not (control) with their own HDL-C, LDL-C, or VLDL-C fractions obtained from the same batch by density gradient ultracentrifugation. Plasma osmolality and erythrocyte aggregation index (EAI) were determined. Blood aliquots e...
The effect of angiography with disodium fluorescein on the hemorheologic parame...
Sargento, L; Zabala, L; Gomes, T; Saldanha, C; Martins-Silva, J; Souza-Ramalho, PChorioretinal angiography with fluorescein is an auxiliary method widely used in Ophthalmology which enables us to study the blood/humour and blood/retina/choroid interface. The presence of a strange compound in circulation may interfere with blood flow homeostasis. With the aim of studying fluorescein influence in blood rheology, blood samples were drawn before, immediately after and 30 minutes after fluoresce...
Evaluation of blood esterases in Alzheimer's disease.
Saldanha, C; Quintão, T; Garcia, CThe aim of this work was to evaluate a possible correlation between erythrocyte acetylcholinesterase activity (AChE) and membrane fluidity expressed by fluorescence polarization of--1,6--diphenyl 1,3,5--hexatriene (DPH). Blood samples of 34 Alzheimer's patients (18F and 16M) were obtained and haemoglobin concentration, haematocrit, plasma (butyrylcholinesterase, BuChE) and erythrocyte (AChE) esterase activities...
Evaluation of interests, experiences and chemistry knowledge among students adm...
Saldanha, C; Moreira, C; Pinto, Y; Nunes, M; Martins e Silva, JSelected medical students for undergraduate medical courses in Portugal exhibit each year substantial deficiencies in chemistry. The group of students admitted to the Faculty of Medicine of Lisbon in 1989/1990 were selected by admission criteria apparently more restrictive than before. The aim of this study was to evaluate the quality of the theoretical knowledge in chemistry showed by those students before lea...
Erythrocyte senescence: lipo-protein interactions of the erythrocyte membrane.
Saldanha, C; Martins e Silva, J
Red cell abnormalities in a kindred with an uncommon form of hereditary spheroc...
Olim, G; Marques, S; Saldanha, C; Santos, D; Barroca, P; Martins e Silva, J