Navegando por Autor "Sales, Márcia Cristina"

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Association between exposure to plasma mixture of essential and toxic elements and the lipid profile in institutionalized older adults
(Journal of Trace Elements in Medicine and Biology, 2024-09) Evangelista, Karine Cavalcanti Maurício de Sena; Pacheco, Daniela Antunes; Campêlo, Angélica Lopes de Sousa; Sousa, Sara Estéfani Soares de; Sales, Márcia Cristina; Barbosa Júnior, Fernando; Lima, Kenio Costa; Ferreira, Marcelo Rodrigo Portela; Reis, Bruna Zavarize; Pedrosa, Lucia Fatima Campos
Background: Older adults have a progressive deficiency in the ability to detoxify chemical elements and are susceptible to dyslipidemia and changes in glycemic control. The objective was to evaluate the association of the mixture of essential and toxic elements in the plasma of institutionalized older adults and test the associations with lipid profile variables and glycemic control. Methods: Data were obtained from 149 Brazilian older adults aged ≥60 living in nursing homes (NH) in Natal, Brazil. The concentrations of sixteen chemical elements in plasma and lipid profile parameters and glycemic control of 149 institutionalized older adults were measured. Bayesian kernel machine regression was used to estimate the associations of the mixture of chemical elements with total cholesterol (TC), high-density lipoprotein (HDL-c), low-density lipoprotein (LDL-c), triglycerides (TG), fasting glucose, and glycated hemoglobin. ResultsNon-linear responses to exposure were observed for iron (Fe) about TC, LDL-c, and TG, and for barium (Ba) and copper (Cu) about TG. The concentration of the mixture of chemical elements below the 35th percentile was associated with a decrease in TC. Fe was the main element in the effect of the mixture associated with TC.ConclusionsThe lower concentrations of the mixture of chemical elements in plasma had a protective effect on the increase in TC, with Fe being the main element. Considering the results, the levels of essential and toxic elements in the plasma of older adults require extensive screening, mainly to prevent dyslipidemia and monitor clinical interventions
Avaliação de zinco no plasma e correlação com marcadores metabólicos e da síndrome metabólica em relação aos fatores associados em idosos institucionalizados de Natal-RN
(2018-08-24) Sales, Márcia Cristina; Pedrosa, Lucia de Fátima Campos; Evangelista, Karine Cavalcanti Mauricio de Sena; ; ; ; Maciel, Bruna Leal Lima; ; Marreiro, Dilina do Nascimento; ; Arruda, Ilma Kruze Grande de; ; Guerra, Ricardo Oliveira;
O envelhecimento pode ocasionar diversas alterações biopsicossociais, que tornam o idoso vulnerável à ocorrência de distúrbios metabólicos e nutricionais, como a deficiência de zinco e a síndrome metabólica (SM). O objetivo deste estudo foi avaliar o zinco no plasma e a correlação com marcadores metabólicos e a frequência de SM em relação aos fatores associados em idosos institucionalizados. Foi realizado um estudo transversal envolvendo idosos arrolados em nove Instituições de Longa Permanência para Idosos (ILPI). No estudo 1, sobre o zinco no plasma e a correlação com marcadores metabólicos, participaram 255 indivíduos. Foram avaliadas as concentrações de zinco no plasma e as associações com o zinco na dieta, bem como indicadores sociodemográficos e biomarcadores de perfil glicêmico, lipídico e inflamatório. As variáveis independentes foram analisadas de acordo com os quartis da concentração de zinco no plasma (μg/dL) (Q1: <71,1; Q2: 71,1-83,3; Q3: <83,3-93,7; Q4:> 93,7). A correlação entre a concentração de zinco no plasma e as variáveis preditoras também foi testada. No Q1, foram observadas maiores concentrações das seguintes variáveis, em comparação com os outros quartis: colesterol total e LDL-c (Q1> Q2, Q3, Q4, todos p <0,001); triacilglicerois (Q1> Q3, Q4, todos p <0,001); IL-6 (Q1> Q3, Q4, p = 0,024, p = 0,010, respectivamente); e TNF-α (Q1> Q3, p = 0,003). Registrou-se uma redução significativa da concentração de zinco no plasma conforme aumento do tempo de institucionalização ajustado por idade (Δ = -0,10; CI95%: -0,18, -0,01), e das concentrações de colesterol total (Δ = -0,19; CI95%: -0,23, -0,15), LDL-c (Δ = -0,19; CI95%: -0,23, -0,15), triacilglicerois (Δ = -0,11; IC95%: -0.16, -0.06), IL-6 (Δ = -1.41; IC95%: -2.64, -0.18) e TNF-α (Δ = -1.04; IC95%: -1.71, -0.36). Desse modo, os dados do presente estudo sugerem que uma diminuição da concentração de zinco no plasma está associada com o maior tempo de institucionalização, e alterações no perfil lipídico e inflamatório em idosos institucionalizados. No estudo 2, sobre a frequência de SM e as relações com fatores associados, foram incluídos 202 indivíduos. A frequência de SM foi avaliada de acordo com os critérios do National Cholesterol Education Program - Adult Treatment Panel III. Foi analisada a associação da SM com fatores sociodemográficos, clínicos, dietético e de estilo de vida. A frequência de SM foi de 29,2% (IC95%: 23,0-36,0%). Os fatores associados à SM foram o sexo feminino (razão de prevalência [RP] = 2,16; intervalo de confiança de 95% [IC], 1,04-4,49), tempo de institucionalização ajustado pela idade >50% (RP = 2,38, IC95%, 1,46–3,88) e elevadas concentrações de IL-6 (RP = 2,01; IC95%, 1,21–3,32) e TNF-α (RP = 1,70; IC95%, 1,05-2,77). Além disso, verificou-se que a ocorrência de SM foi 1,85 vezes maior (IC 95%, 1,11-3,10) no grupo com uma dieta caracterizada por um consumo muito elevado de energia, muito baixo de gordura e elevado de fibra dietética, conforme modelo de análise fatorial. Assim, os resultados apontam para uma frequência moderada de SM, que foi associada ao sexo feminino, maior tempo de institucionalização, alterações imunológicas, além de um maior consumo alimentar de energia e fibra e uma menor ingestão dietética de gordura total.
Factors associated with inflamm-aging in institutionalized older people
(Scientific Reports, 2021-09) Evangelista, Karine Cavalcanti Maurício de Sena; Oliveira Neto, Leônidas de; Tavares, Vagner Deuel de Oliveira; Agrícola, Pedro Moraes Dutra; Oliveira, Larissa Praça de; Sales, Márcia Cristina; Gomes, Igor Conterato; Coelho, Nicole Leite Galvão; Pedrosa, Lúcia Fátima Campos; Lima, Kenio Costa
The increase in infammatory cytokines associated with a reduction in the bioavailability of zinc has been used as a marker for infammation. Despite the high infammatory state found in institutionalized older individuals, few studies have proposed verifying the factors associated with this condition in this population. To verify the factors associated with infamm-aging in institutionalized older people. A total of 178 older people (≥ 60 years old) living in nursing homes in Natal/RN were included in the study. Cluster analysis was used to identify three groups according to their infammatory state. Analysis anthropometric, biochemical, sociodemographic, and healthrelated variables was carried out. In sequence, an ordinal logistic regression was performed for a confdence level of 95% in those variables with p< 0.20 in the bivariate analysis. IL-6, TNF-α, zinc, low-density lipids (LDL), high-density lipids (HDL), and triglycerides were associated with infammaging. The increase of 1 unit of measurement of LDL, HDL, and triglycerides increased the chance of infammation-aging by 1.5%, 4.1%, and 0.9%, respectively, while the oldest old (≥80 years old) had an 84.9% chance of presenting infamm-aging in relation to non-long-lived older people (<80 years). The association between biochemical markers and infamm-aging demonstrates a relationship between endothelial injury and the infammatory state. In addition, the presence of a greater amount of fat in the blood may present a higher relative risk of death
High prevalence of hypovitaminosis D in institutionalized elderly individuals is associated with summer in a region with high ultraviolet radiation levels
(Nutrients, 2019-07) Evangelista, Karine Cavalcanti Maurício de Sena; Sousa, Sara Estéfani S.; Sales, Márcia Cristina; Araújo, José Rodolfo Torres; Lima, Kenio Costa; Pedrosa, Lucia Fatima Campos
Vitamin D may play a significant role in regulating the rate of aging. The objective of the study was to assess vitamin D status and its associated factors in institutionalized elderly individuals. A total of 153 elderly individuals living in Nursing Homes (NH) were recruited into the study. Serum 25-hydroxyvitamin D [25(OH)D] concentration was used as the biomarker of vitamin D status, and it was considered as the dependent variable in the model. The independent variables were the type of NH, age-adjusted time of institutionalization, age, sex, skin color, body mass index, waist and calf circumference, physical activity practice, mobility, dietary intake of vitamin D and calcium, vitamin D supplementation, use of antiepileptics, and season of the year. Serum 25(OH)D concentrations less than or equal to 29 ng/mL were classified as insufficient vitamin D status. The prevalences of inadequate dietary intake of vitamin D and calcium were 95.4% and 79.7%, respectively. The prevalence of hypovitaminosis D was 71.2%, and the mean serum concentration of 25(OH)D was 23.9 ng/mL (95% confidence interval [CI]: 22.8–26.1). Serum 25(OH)D concentration was associated with the season of summer (p = 0.046). There were no associations with other independent variables (all p > 0.05). The present results showed that a high prevalence of hypovitaminosis D was significantly associated with summer in institutionalized elderly individuals
Plasma zinc in institutionalized elderly individuals: relation with immune and cardiometabolic biomarkers
(Journal of Trace Elements in Medicine and Biology, 2018-12) Lyra, Clélia de Oliveira; Sales, Márcia Cristina; Oliveira, Larissa Praça de; Cabral, Natalia Louise de Araújo; Sousa, Sara Estéfani Soares de; Almeida, Maria das Graças; Lemos, Telma Maria Araújo Moura; Lima, Kenio Costa de; Evangelista, Karine Cavalcanti Mauricio Sena; Pedrosa, Lucia de Fatima Campos
Changes in zinc metabolism caused by aging and the institutionalization process may contribute to zinc deficiency in elderly individuals. Hypozincemia results in changes in glycemic, lipid, and inflammatory profiles. The aim of this study was to evaluate plasma zinc concentrations and their relationships with sociodemographic, dietary, inflammatory, and cardiometabolic biomarkers in institutionalized elderly individuals. A cross-sectional study was carried out including 255 elderly adults living in nursing homes. The associations between plasma zinc and dietary zinc intake, sociodemographic indicators, and glycemic, lipid, and inflammatory biomarkers were evaluated. Independent variables were analyzed according to quartiles of plasma zinc concentrations (Q1: <71.1 μg/dL; Q2: 71.1–83.3 μg/dL; Q3: <83.3–93.7 μg/dL; Q4: >93.7 μg/dL). The relationship between plasma zinc concentrations and predictor variables was also tested. In Q1, higher concentrations of the following variables were observed, compared with those in other quartiles: total cholesterol and low-density lipoprotein cholesterol (LDL-c; Q1 > Q2, Q3, Q4; all p <0.001); triglycerides (Q1 > Q3, Q4; all p < 0.001); interleukin (IL)-6 (Q1 > Q3, Q4; p = 0.024 and p = 0.010, respectively); tumor necrosis factor (TNF)-α (Q1 > Q3, p = 0.003). A significant reduction in plasma zinc concentrations was observed with increasing age-adjusted institutionalization time (Δ = − 0.10; 95% confidence interval [CI]: −0.18 to −0.01). The concentrations of total cholesterol (Δ = − 0.19; 95% CI: −0.23 to −0.15), LDL-c (Δ = − 0.19; 95% CI: −0.23 to −0.15), triglycerides (Δ = − 0.11; 95% CI: −0.16 to −0.06), IL-6 (Δ = − 1.41; 95% CI: −2.64 to −0.18), and TNF-α (Δ = − 1.04; 95% CI: −1.71 to −0.36) were also significantly increased. In conclusion, decreased plasma zinc concentrations were associated with longer institutionalization time and worse lipid and inflammatory profiles in elderly institutionalized individuals

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Navegando por Autor "Sales, Márcia Cristina"