Navegando por Autor "Miranda, Carolinne Thaísa de Oliveira Fernandes"
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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.TCC Previous vitamin D status and total cholesterol are associated with SARS-CoV-2 infection(Universidade Federal do Rio Grande do Norte, 2021-08-20) Ribeiro, Heriks Gomes; Silbiger, Vivian Nogueira; Victor de Lima Soares; Rebecchi, Ivanise Marina Moretti; Miranda, Carolinne Thaísa de Oliveira FernandesBackground and Aims: The relationship of vitamin D status and other biochemical parameters with the risk of SARS-CoV-2 infection remains inconclusive, especially in regions with high solar incidence. Therefore, we aimed to associate the 25-hydroxyvitamin D (25(OH)D) levels and lipid profile prior to the SARS-CoV-2 tests in a population from a sunny region in Brazil (5° S, 35° W). Methods and Results: This is a retrospective cohort study which enrolled 1634 patients tested for SARS-CoV-2 of a private medical laboratory with 25(OH)D level and lipid profile measured seven or more days before the date of the first SARS-CoV-2 RT-PCR test and were categorized according to 25(OH)D sufficiency (≥ 30 ng/ml) or insufficiency (< 30 ng/mL). Multiple logistic regression analyses were performed to assess risk factors associated with positive tests for SARS-CoV-2. Average serum 25(OH)D was 33.6 ng/mL. The vitamin D deficiency (< 20 ng/mL) reached only 2.6% of the participants. Multivariate analysis demonstrated that patients > 49 years old with insufficient 25(OH)D (< 30 ng/mL) presented increased odds to test positive for SARS-CoV-2 (OR: 2.02, 95%CI: 1.15 to 3.55, P = 0.015). The same is observed among those with Total Cholesterol > 190 mg/dL (OR: 1.90, 95%CI: 1.10 to 3.28, P = 0.020). Conclusions: Previous insufficient 25(OH)D (< 30 ng/mL) concentration and high total cholesterol were associated with SARS-CoV-2 infection among adults older than 49 years in the study population. Further studies should be conducted to confirm whether measurement of 25(OH)D and lipid profile could be useful to identify patients who are more susceptible to COVID-19.