Encontrados 11 documentos, a visualizar página 1 de 2
Estrutura e dinâmica do tecido ósseo
Judas, F; Palma, P; Falacho, RI; Figueiredo, HO tecido ósseo é uma forma especializada de tecido conjuntivo constituído por uma fase mineral, formada essencialmente por cristais de fosfato de cálcio, sob a forma de hidroxiapatite, que assenta numa organizada matriz colagénica. A combinação da fase mineral e da fase orgânica confere ao tecido ósseo propriedades únicas, que o tornam muito resistente às solicitações mecânicas. Apesar seu aspeto aparentemente...
Contagem de reticulócitos de cães saudáveis ou anêmicos pela citometria de fluxo
Pereira,P.M.; Seki,M.C.; Palma,P.V.B.; Morais,F.R.; Santana,A.E.; Pereira,G.T.Compararam-se os resultados da contagem de reticulócitos pela microscopia de luz e pelo método da citometria de fluxo em 25 cães saudáveis (controle), 60 cães com anemia regenerativa e 40 com anemia arregenerativa. Houve diferença nas contagens absolutas obtidas pela microscopia de luz e pela citometria de fluxo nos três grupos estudados. A contagem de reticulócitos foi mais alta pela citometria de fluxo que a ...
Endosulfan sulphate interferes with reproduction, embryonic development and sex...
Palma, P.; Palma, V. L.; Fernandes, R. M.; Soares, A. M. V. M.; Barbosa, I. R.Endosulfan sulphate is the transformation product of endosulfan and it is the most frequent form of surface water contamination with endosulfan. The aim of this study was to evaluate the possible effects promoted by endosulfan sulphate in changes on the life cycle, embryo development and sex differentiation of Daphnia magna. The endpoints used were moulting frequency, fecundity, growth, developmentally abnormal...
Acute Toxicity of Atrazine, Endosulfan Sulphate and Chlorpyrifos to Vibrio fis...
Palma, P.; Palma, V.; Fernandes, R.; Soares, A.; Barbosa, I.Abstract Ecotoxicological effects of the herbicide atrazine and the insecticides endosulfan sulphate and chlorpyrifos were evaluated using a test battery comprising aquatic organisms from different trophic levels. According to the categories established in the EU legislation, atrazine can be considered non-harmful for the species tested, while the insecticides can be considered very toxic for the crustaceans. ...
Assessment of chemical, biochemical and ecotoxicological aspects in a mine soil...
Alvarenga, P.; Palma, P.; Gonçalves, A.P.; Baião, N.; Fernandes, R.M.; Varennes, A. de; Vallini, G.; Duarte, E.; Cunha-Queda, A.C.A greenhouse pot experiment was conducted to evaluate the effect of sewage sludge (SS), of sugar beet sludge (SBS), or of a combination of both, in the remediation of a highly acidic (pH 3.6) metal-contaminated soil, affected by mining activities. The SS was applied at 100 and 200 Mg ha 1 (dry weight basis), and the SBS at 7 Mg ha 1. All pots were sown with Italian ryegrass (Lolium multiflorum Lam.). After 60 d...
Evaluation of tests to assess the quality of mine-contaminated soils
Alvarenga, P.; Palma, P.; Gonçalves, A.P.; Fernandes, R.M.; Varennes, A.; Vallini, G.; Duarte, E.; Cunha-Queda, A.C.An acid metal-contaminated soil from the Aljustrel mining area (a pyrite mine located in SW Portugal in the Iberian Pyrite Belt) was subjected to chemical characterisation and total metal quantiWcation (Cd, Cr, Cu, Ni, Pb and Zn). Water-soluble metals were determined and a sequential extraction procedure was used to investigate metal speciation. Two bioavailable metal fractions were determined: a mobile fractio...
Mesenchymal stem cells from patients with chronic myeloid leukemia do not expre...
Carrara,R.C.V.; Orellana,M.D.; Fontes,A.M.; Palma,P.V.B.; Kashima,S.; Mendes,M.R.; Coutinho,M.A.; Voltarelli,J.C.; Covas,D.T.Bone marrow is a heterogeneous cell population which includes hematopoietic and mesenchymal progenitor cells. Dysregulated hematopoiesis occurs in chronic myelogenous leukemia (CML), being caused at least in part by abnormalities in the hematopoietic progenitors. However, the role of mesenchymal stem cells (MSCs) in CML has not been well characterized. The objectives of the present study were to observe the bio...
Myocardial bridging: retrospective analysis and scintigraphic testing of patien...
Luz, A.C.; Silveira, J.; Palma, P.; Cyrne-Carvalho, H.; Albuquerque, A.; Amorim, I.; Gomes, L.Rev Port Cardiol. 2006 Apr;25(4):397-406. Myocardial bridging: retrospective analysis and scintigraphic testing of patients with no angiographically significant atherosclerotic coronary disease. [Article in English, Portuguese] Luz A, Silveira J, Palma P, Carvalho HC, Albuquerque A, Amorim I, Gomes L. SourceServiço de Cardiologia, Hospital Geral de Santo António, Porto, Portugal. andre_luz@sapo.pt Abstract INT...
Synechocystis ferredoxin/ferredoxin-NADP+-reductase/NADP+ complex: Structural m...
Moura, José J. G.; Palma, P. Nuno; Lagoutte, Bernard; Krippahl, Ludwig; Guerlesquin, FrançoiseFEBS Letters 579 (2005) 4585–4590 ; Abstract Ferredoxin (Fd) and ferredoxin-NADP+-reductase(FNR) are two terminal physiological partners of the photosynthetic electron transport chain. Based on a nuclear magnetic resonance(NMR)-restrained-docking approach, two alternative structural models of the Fd–FNR complex in the presence of NADP+ are proposed. The protein docking simulations were performed with the softw...
Immunological effects of donor lymphocyte infusion in patients with chronic mye...
Castro,F.A.; Palma,P.V.B.; Morais,F.R.; Voltarelli,J.C.Allogeneic bone marrow transplantation (alloBMT) is the only curative therapy for chronic myelogenous leukemia (CML). This success is explained by the delivery of high doses of antineoplastic agents followed by the rescue of marrow function and the induction of graft-versus-leukemia reaction mediated by allogeneic lymphocytes against host tumor cells. This reaction can also be induced by donor lymphocyte infusi...
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