9 resultados para Lunch

em Repositório Institucional UNESP - Universidade Estadual Paulista "Julio de Mesquita Filho"


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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

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Estudos epidemiológicos observaram que glicemias pós-prandiais (GPPs) elevadas são fator principal na ocorrência de doenças cardiovasculares. Sabe-se que a hemoglobina glicada (HbA1C) reflete a glicemia média dos últimos 2-3 meses, entretanto é controversa a contribuição relativa da glicemia de jejum (GJ) e GPP para o valor da HbA1C. OBJETIVO: Avaliar a contribuição da GJ e GPPs para o valor da HbA1C em pacientes com diabetes melito tipo 2 (DM2). MÉTODOS: Participaram 53 indivíduos com DM2, estáveis e em tratamento com antidiabéticos orais (n= 27) e/ou insulina (n= 26). Cada paciente comparecia a 3 visitas a intervalos de 2 meses. em cada visita era medida a GJ, as GPPs (2h pós-desjejum: GPD e pós-almoço: GPA) e a HbA1C, sendo fornecido o desjejum e o almoço segundo seus hábitos alimentares. Mediu-se a glicose plasmática pela glicose-oxidase e a HbA1C, pela cromatografia de troca iônica. Realizou-se a análise das associações pelo coeficiente de correlação de Spearman, com P< 0,05. RESULTADOS: A HbA1C correlacionou-se melhor em cada visita ao longo do estudo com a GPD (r: 0,66­0,48), a glicemia média (r: 0,64­0,41), a área abaixo da curva glicêmica (r : 0,64­0,46) e a GPP média (r: 0,59­0,41). CONCLUSÕES: A GPD mostrou-se um parâmetro eficaz adicional no monitoramento glicêmico dos pacientes com DM2.

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Objective To investigate the relationship between skipping meals and biochemical variables in obese children and adolescents.Study design The sample was composed of 174 obese children and adolescents, aged between 6 and 16 years (80 male and 94 female). Body composition was assessed by dual-energy x-ray absorptiometry, fasting blood glucose, and lipid profile were measured after 12 hours fasting. The frequency of skipping breakfast, lunch, or dinner was assessed through a face-to-face interview carried out with the parents.Results The prevalence of eating breakfast daily was low in boys (47.5%) and girls (44.7%). A higher frequency of eating breakfast was negatively correlated with glucose (r = -0.16; P = .026), triglycerides (r = -0.19; P = .011), and very low density lipoprotein cholesterol (r = -0.21; P = .005). In the multivariate model, the weekly frequency of eating breakfast remained negatively associated with glucose (beta = -0.975; P = .017), triglycerides (beta = -7.792; P = .017), and very low density lipoprotein cholesterol (beta = -1.870; P = .009) independent of age, sex, trunk fatness, and parents' education.Conclusion Skipping meals, mainly breakfast, is associated with glucose and lipid levels in obese children and adolescents. (J Pediatr 2012;161:871-4).

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To determine whether glucose tolerance varies throughout the day in people with impaired glucose tolerance (IGT). We studied 15 healthy IGT, and 18 matched normal glucose tolerant (NGT) individuals. Blood samples were taken every 30-120 min during a 24 h period in which all individuals had three mixed meals and nocturnal sleep. We measured glucose, free fatty acids, specific insulin, intact proinsulin, cortisol and growth hormone. Variable responses were considered as concentrations and areas under the curves. Comparison between the groups was by Student's t-test, Mann-Whitney, and analysis of variance. Higher total glucose response, inappropriate normal total insulin response, and unproportionally increased proinsulin total response were observed in the IGT group. Lower glucose tolerance occurred in IGT after dinner, as in the NGT, and after breakfast associated with increased insulin response after breakfast, and similar proinsulin response after all three meals. IGT had higher glucose response than NGT after breakfast and lunch, similar insulin responses, and increased proinsulin-insulin ratio after all three meals. Data from this study demonstrate that IGT individuals present lower glucose tolerance in the evening, as those with NGT, and in the morning, as reported in patients with type 2 diabetes. © 2006 Elsevier B.V. All rights reserved.

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Pós-graduação em Alimentos e Nutrição - FCFAR

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Pós-graduação em Alimentos e Nutrição - FCFAR

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)