Serum Phospholipids
Mostrando 1-12 de 107 artigos, teses e dissertações.
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1. Modifications of the composition of plasma lipoproteins in physically trained young male individuals / Modificações da composição quimica de lipoproteinas plasmaticas em jovens do sexo masculino fisicamente exercitados
Regular physical activity is related to a reduced risk of cardiovascular disease possibly by improvement of the lipoprotein profile. But there are many deficiencies in the current knowledge in this area like at what age this benefit initiate, what is the amount and intensity of the exercises, among others. In this study we evaluated the efficiency of regular
Publicado em: 2008
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2. Development of membrane biosensors and characterization of the interactions between cytochrome c and hybrid bilayer membranes by Surface Plasmon Resonance / Desenvolvimento de biosensores de membranas e caracterização da interação entre citocromo c e bicamadas híbridas por ressonância plasmônica de superfície
The aim of this work was to develop membrane biosensors based on Surface Plasmon Resonance (SPR) and to apply them to study the interactions between cytochrome c (cyt c) and model membranes. SPR is an optical technique that provides high-sensitivity measurements of refractive index (n), allowing the characterization of the adsorption and desorption of molecu
Publicado em: 2008
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3. Validação do consumo de ácidos graxos dietéticos com uso de biomarcadores e aplicação do método das tríades
Objetivo: Validar o consumo de ácidos graxos dietéticos obtido por meio de um questionário de freqüência alimentar (Q) em relação a múltiplos recordatórios de 24 horas (R) e um biomarcador sangüíneo, em uma população acima de 17 anos do Distrito Federal. Método: O estudo foi realizado com 81 indivíduos selecionados aleatoriamente em duas regi�
Publicado em: 2008
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4. Validação do consumo de ácidos graxos dietéticos com uso de biomarcadores e aplicação do método das tríades
Objetivo: Validar o consumo de ácidos graxos dietéticos obtido por meio de um questionário de freqüência alimentar (Q) em relação a múltiplos recordatórios de 24 horas (R) e um biomarcador sangüíneo, em uma população acima de 17 anos do Distrito Federal. Método: O estudo foi realizado com 81 indivíduos selecionados aleatoriamente em duas regi�
Publicado em: 2008
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5. Estudo de monocamadas fosfolipidicas nanoestruturadas obtidas por LB para aplicações em biossensores
There has been long-standing interest in the physical chemical properties of defined mixtures of cholesterol and phospholipids in monolayer and bilayer membranes. They also provide insight into certain properties of the membranes of animal cells. Even if phospholipids and sphingolipids build up the matrix of cellular membranes, sterols are essential componen
Publicado em: 2007
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6. Treinamento físico aeróbio aumenta a capacidade antioxidante das HDL e reduz o estresse oxidativo plasmático no diabete melito tipo 2 / Aerobic exercise training enhances the HDL antioxidant role and reduces plasma oxidative stress in type 2 diabetes mellitus
Objective: The objective of this study was to analyze in type 2 diabetes mellitus (DM 2) and in healthy controls subjects (C) the role of acute and aerobic exercise training (AET) on plasma oxidative stress and antioxidant defenses as well as the HDL2 and HDL3 ability to inhibit the in vitro LDL oxidation. Methods: Peak oxygen uptake (VO2 peak) was measured
Publicado em: 2006
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7. Filmes de Langmuir e vesículas multilamelares de fosfolipídios e suas interações com um peptídeo oriundo da proteína p24 do HIV-1 / Langmuir films and multilamellar vesicles of phospholipids and its interactions with peptide from p24 protein from HIV-1
The investigation of the interaction mechanisms between the viruses and the host cells brings relevant information for the identification of targets on the development of drugs to prevent the penetration and/or development of the viruses. Peptides designed from viral proteins have been developed and tested on its capacities of inhibiting the merging process
Publicado em: 2003
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8. Perfis sericos lipidico, apoproteico e lipoproteico de pacientes portadores do virus da imunodeficiencia adquirida
Treatment with highly active anti-retrovkal therapy drugs (HAART) has resulted in decrease of the viralload of human immunodeficiency virus (IDV) until its negativatio~ with concomitant rebuilding of the immune system. Potency and effectiveness of anti-retroviral therapies of high activity increase the life expectation of mv infected patients. However, resul
Publicado em: 2000
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9. Effect of serum on phospholipids of L-forms of Streptococcus faecalis.
Changes in the phospholipids of the membrane of L-forms of Streptococcus faecalis were studied after exposure to normal human serum. The phospholipids were labeled by incubating the L forms with [14C]palmitate. After the reaction of the L-forms with normal human serum, the percentage of total lipid radioactivity decreased in phospholipids and increased in fr
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10. Manipulation of the Phospholipid Composition of Tissue Culture Cells*
Methods have been devised to significantly alter the phospholipid composition of LM cells grown in serum-free tissue culture medium. The polar head groups of the phospholipids, as well as the acyl groups of these lipids, can be changed. When LM cells were grown in medium containing choline analogues, either N-methyl-ethanolamine or N,N-dimethylethanolamine,
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11. Phospholipids containing polyunsaturated fatty acyl groups are mitogenic for normal mouse mammary epithelial cells in serum-free primary cell culture.
Epithelial cells obtained by collagenase digestion of mammary glands from virgin BALB/c mice were cultured in collagen gels in serum-free basal medium containing insulin (10 micrograms/ml), to which lipids or growth factors were added. Synthetic phospholipids were added as liposomes. Dilinoleoyl phosphatidic acid or phosphatidylserine or epidermal growth fac
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12. Binding affinity of serum immunoglobulin G to cardiolipin and other phospholipids in patients with systemic lupus erythematosus and syphilis.
Qualitative and quantitative assays for human antibodies to cardiolipin and other phospholipids were used in tests for these reactions in sera from patients with systemic lupus erythematosus (SLE) and syphilis. Of 22 SLE serum samples tested by the qualitative assay, 8 showed positive staining to cardiolipin, phosphatidic acid, and/or phosphatidylserine. All