Navegando por Autor "Paiva, Maria Sanali Moura Oliveira"
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Artigo Association of serum alpha-tocopherol and retinol with the extent of coronary lesions in coronary artery disease(Journal of Nutrition and Metabolism, 2018-12-11) Ribeiro, Karla Danielly da Silva; Miranda, Carolinne Thaísa de Oliveira Fernandes; Duarte, Victor Hugo Rezende; Cruz, Marina Sampaio de Menezes; Duarte, Mychelle Kytchia Rodrigues Nunes; Araújo, Jéssica Nayara Góes de; Santos, Ayda Maria Quirino Silva dos; Oliveira, Juliana Marinho de; Paiva, Maria Sanali Moura Oliveira; Rezende, Adriana Augusto; Hirata, Mario Hiroyuki; Hirata, Rosario Dominguez Crespo; Luchessi, André Ducati; Silbiger, Vivian Nogueira; https://orcid.org/0000-0001-7708-4271; https://orcid.org/0000-0003-3073-5967; https://orcid.org/0000-0002-9252-0278; https://orcid.org/0000-0002-2251-5967; https://orcid.org/0000-0002-3122-9073; https://orcid.org/0000-0002-2276-690X; https://orcid.org/0000-0003-2452-4047; https://orcid.org/0000-0002-9521-7979; https://orcid.org/0000-0002-2758-8102Background and aims: Fat-soluble vitamins play an important role in the pathogenesis of cardiovascular disease and progression ofatherosclerosis. +is study aimed at investigating the relationship of the serum levels of alpha-tocopherol and retinol with theextent of coronary lesions in patients with coronary artery disease. Methods. Patients with coronary artery disease (n = 177) aged 30 – 74 years, who underwent their first coronary angiography, were enrolled. The extent of coronary lesions was assessed using th eFriesinger index (FI). Accordingly, patients were grouped as follows: FI = 0–4 (n = 90), FI = 5–9 (n = 50), and FI = 10–15 (n = 37).Serum levels of vitamins were determined via high-performance liquid chromatography and serum biochemical analysis. Results.Assessment of FI-based groups revealed that 50.8% patients had a coronary artery lesion to a low extent (FI 0–4). Individuals inthis group were younger and had lower glucose and serum alpha-tocopherol levels than the other groups (p < 0.05). Low levels of alpha-tocopherol were more frequent in the FI 0–4 group than that in the other groups (p = 0.03). No difference was observedbetween the mean serum retinol levels among the FI-based groups (n = 0.492), and the low frequency of retinol was consistentamong the FI groups (n = 0.348). Conclusions. The low level of alpha-tocopherol together with the presence of dyslipidemia isprobably associated with the initial events in atherosclerosis. Increased alpha-tocopherol levels in patients with more extensivecoronary artery lesions may have resulted from altered vitamin E metabolism with increased oxidative stress.Artigo The hypolipidemic and pleiotropic effects of rosuvastatin are not enhanced by its association with zinc and selenium supplementation in coronary artery disease patients: a double blind randomized controlled study(Plos One, 2015-03) Evangelista, Karine Cavalcanti Maurício Sena; Pedrosa, Lucia Fatima Campos; Paiva, Maria Sanali Moura Oliveira; Dias, Paula Cristina Silveira; Ferreira, Diana Quitéria Cabral; Cozzolino, Sílvia Maria Franciscato; Faulin, Tanize Espírito Santo; Abdalla, Dulcinéia Saes ParraObjective: Statins treatment may modify the levels of zinc and selenium, minerals that can improve vascular function and reduce oxidative damage and inflammation in atherosclerotic patients. This study aimed to evaluate the effects of rosuvastatin, alone or associated with zinc and selenium supplementation, on lipid profile, antioxidant enzymes and mineral status in coronary artery disease patients. Material and Methods A double-blind randomized clinical trial was performed in which patients (n = 76) were treated with 10 mg rosuvastatin over 4 months associated or not with zinc (30 mg/d) and selenium (150 μg/d) supplementation. The following parameters were analyzed before and after the intervention: anthropometric measurements, lipid profile, high sensitivity C-reactive protein (hs-CRP), electronegative low density lipoprotein (LDL(-)) concentrations, activities of glutathione peroxidase (GPx), superoxide dismutase (SOD), zinc and selenium concentrations in blood plasma and erythocytes. Significance was determined using an α of 5% (twotailed). Results We found that rosuvastatin therapy was efficient in reducing total cholesterol, LDL-cholesterol, non-HDL cholesterol, triglycerides, and hs-CRP independently of mineral supplementation. Neither treatment was associated with significant changes in LDL(-). Similarly, the antioxidant enzymes GPx and SOD activity were unchanged by treatments. Neither treatment was associated with significant differences in concentrations of zinc or selenium in blood plasma and erythocytes of studied groups. Conclusion Rosuvastatin treatment did not affect zinc and selenium levels in coronary artery disease patients. The zinc and selenium supplementation at doses used in this study did not change lipid profile or SOD and GPx activity in patients receiving rosuvastatin. Further studies should be focused on testing alternative doses and supplements in different populations to contribute for a consensus on the ideal choice of antioxidants to be used as possible complementary therapies in atherosclerotic patients