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1.
Rev. Odontol. Araçatuba (Impr.) ; 38(2): 26-31, maio-ago. 2017. ilus, tab, graf
Article in Portuguese | LILACS, BBO - Dentistry | ID: biblio-876081

ABSTRACT

O óleo de coco é um alimento que apresenta perfil nutracêutico com ação termogênica, e pode ser uma proposta utilizada para o processo de emagrecimento e redução da circunferência abdominal. Realizar uma revisão sistemática, com o objetivo de identificar as principais evidências do uso do óleo de coco, no processo de emagrecimento e redução de circunferência abdominal. Foram incluídos no trabalho estudos com resultados de metaanálises, ensaios clínicos, estudos de caso-controle e série de casos realizados em seres humanos, publicados nos últimos 10 anos. Foram encontradas poucas evidências a respeito dos efeitos do óleo de coco na perda de peso e redução da circunferência abdominal. São escassos ou inconclusivos os estudos que avaliam os efeitos do óleo de coco para fins estéticos como emagrecimento e redução de circunferência abdominal, associado ou não à prática de atividade física, o que coloca em dúvida o uso deste suplemento(AU)


Coconut oil is a food that presents a nutraceutical profile with thermogenic action, and can be a proposal used for the process of slimming and reduction of the waist circumference. To carry out a systematic review with the objective of identifying the main evidences of the use of coconut oil, in the process of slimming and reduction of abdominal circumference. We included studies with results of meta-analyzes, clinical trials, case-control studies and series of human cases published in the last 10 years. Little evidence was found regarding the effects of coconut oil on weight loss and reduction of waist circumference. There are few or inconclusive studies that evaluate the effects of coconut oil for aesthetic purposes such as weight loss and reduction of waist circumference, associated or not to the practice of physical activity, which questions the use of this supplement(AU)


Subject(s)
Weight Loss , Palm Oil , Abdominal Circumference
2.
J Nutr Sci Vitaminol (Tokyo) ; 59(2): 100-7, 2013.
Article in English | MEDLINE | ID: mdl-23727639

ABSTRACT

Obesity has increased in children and adolescents. What is reflected in the early occurrence of cardiometabolic alterations, like hypertension and type 2 diabetes, where the oxLDL formation is stimulated. Various studies have shown that plasma α-tocopherol (α-TP) can protect LDL against oxidation. Nevertheless, the action of plasma α-TP in cardiovascular diseases remains controversial. We conducted a cross-sectional study to evaluate plasma α-TP and its impact on the concentration of LDL(-). Adolescents (n=150) of both sexes were classified into three groups: healthy weight (HW; 50%), overweight (OV; 22%), and obese (OB; 28%). Lipid profile, LDL(-), anti-oxLDL and anti-LDL(-) antibodies, CRP (ELISA) and plasma α-TP (HPLC) were analyzed. Demographic, anthropometric, and food intake data were evaluated. Crude and energy-adjusted intake of vitamin E in the OB group were higher than in the HW group (p<0.001). Crude and energy-adjusted vitamin E intakes were not correlated with plasma α-TP (r=-0.07; p=0.412 and r=-0.064; p=0.467, respectively). Subjects in the OB group had higher TC and LDL-C and lower HDL-C than in the HW and OV groups. C-reactive protein and anti-oxLDL antibodies changed as a function of BMI. The impact of obesity was reinforced by high values for LDL(-) and low content of plasma α-TP in comparison with the HW (p<0.001) and OV groups (p=0.03). This negative profile was maintained for the ratio between α-TP and TC or LDL-C. Plasma α-TP, α-TP/TC and α-TP/LDL-C were negatively associated with LDL(-) and other cardiometabolic risk factors (BMI, WC, AC and anti-oxLDL). Our results demonstrate that obesity in adolescents is associated with high levels of LDL(-) and low plasma α-TP content.


Subject(s)
Cholesterol, LDL/blood , Obesity/blood , alpha-Tocopherol/blood , Adolescent , Anthropometry , Body Mass Index , C-Reactive Protein/metabolism , Child , Cross-Sectional Studies , Diabetes Mellitus, Type 2/blood , Diabetes Mellitus, Type 2/etiology , Dietary Carbohydrates/administration & dosage , Dietary Fats/administration & dosage , Dietary Proteins/administration & dosage , Energy Intake , Female , Humans , Hypertension/blood , Hypertension/etiology , Lipoproteins, LDL/blood , Male , Obesity/complications , Overweight/blood , Overweight/complications , Risk Factors , Surveys and Questionnaires
3.
Arq. bras. cardiol ; 94(5): 585-591, maio 2010. graf, tab
Article in Portuguese | LILACS | ID: lil-548106

ABSTRACT

FUNDAMENTO: Vários estudos sugerem que a proteína-C reativa (PCR) se correlaciona com doença arterial coronariana em adultos. Entretanto, essa associação ainda é pouco explorada em adolescentes. OBJETIVO: Avaliar a associação entre a PCR e os fatores de risco cardiovascular em adolescentes obesos. MÉTODOS: Oitenta e quatro adolescentes (12,6 ± 1,3 anos), ambos os sexos, foram distribuídos nos grupos Eutrófico (n = 28), Sobrepeso (n = 28) e Obeso (n = 28), segundo o índice de massa corpórea (IMC). A concentração de PCR (ELISA ultrassensível), o perfil lipídico e o conteúdo de anticorpos anti-LDLox (ELISA) foram determinados após jejum de 12h. RESULTADOS: Os grupos foram semelhantes quanto a idade (p = 0,13) e sexo (p = 0,83). Colesterol total, HDL-C, CT/HDL-C e LDL-C/HDL-C apresentaram diferenças significativas entre os grupos Eutrófico e Obeso. Não houve variação significativa no conteúdo de anticorpos anti-LDLox. Os valores de PCR foram diferentes entre os três grupos (p < 0,01). PCR apresentou associação significativa com IMC (β = 2,533), CB (β = 2,645) e CC (β = 2,945), CT (β = 0,006), LDL-C (β = 0,006) e anticorpos anti-LDLox (β = 0,383) e negativa entre HDL-C (β = -0,017). CONCLUSÃO: Os resultados indicam que a PCR se associa significativamente com marcadores de risco cardiovascular em adolescentes.


BACKGROUND: Several studies suggest that C-reactive protein (CRP) is associated with coronary artery disease in adults. However, this association has not been thoroughly explored in cases of adolescents. OBJECTIVE: To evaluate the association between CRP and cardiovascular risk factors in obese adolescents. METHODS: Eighty-four adolescents (12.6 ± 1.3 years) of both genders were divided into the following groups: Normal weight (n = 28), Overweight (n = 28), and Obese (n = 28), according to body mass index (BMI). CRP levels (ultrasensitive ELISA), the lipid profile, and anti-oxLDL antibody levels (ELISA) were determined after a 12-hour fast. RESULTS: The groups were similar in age (p = 0.13) and gender (p = 0.83). Total cholesterol, HDL-C, TC/HDL-C, and LDL-C/HDL-C showed significant differences between Normal weight and Obese groups. There was no significant variation in anti-oxLDL levels. CRP values were different among the three groups (p < 0.01). CRP levels showed a significant association with BMI (β = 2.533), AC (β = 2.645), WC (β = 2.945), TC (β = 0.006), LDL-C (β = 0.006), and anti-oxLDL antibodies (β = 0.383), and a negative association with HDL-C (β = -0.017). CONCLUSION: The results indicate that CRP is significantly associated with markers of cardiovascular risk in adolescents.


Subject(s)
Adolescent , Female , Humans , Male , C-Reactive Protein/analysis , Cardiovascular Diseases/diagnosis , Obesity/blood , Body Mass Index , Biomarkers/blood , Epidemiologic Methods , Lipids/blood , Lipoproteins, LDL/immunology , Nutritional Status/physiology
4.
Arq Bras Cardiol ; 94(5): 585-91, 2010 May.
Article in Portuguese | MEDLINE | ID: mdl-20428726

ABSTRACT

BACKGROUND: Several studies suggest that C-reactive protein (CRP) is associated with coronary artery disease in adults. However, this association has not been thoroughly explored in cases of adolescents. OBJECTIVE: To evaluate the association between CRP and cardiovascular risk factors in obese adolescents. METHODS: Eighty-four adolescents (12.6 +/- 1.3 years) of both genders were divided into the following groups: Normal weight (n = 28), Overweight (n = 28), and Obese (n = 28), according to body mass index (BMI). CRP levels (ultrasensitive ELISA), the lipid profile, and anti-oxLDL antibody levels (ELISA) were determined after a 12-hour fast. RESULTS: The groups were similar in age (p = 0.13) and gender (p = 0.83). Total cholesterol, HDL-C, TC/HDL-C, and LDL-C/HDL-C showed significant differences between Normal weight and Obese groups. There was no significant variation in anti-oxLDL levels. CRP values were different among the three groups (p < 0.01). CRP levels showed a significant association with BMI (beta = 2.533), AC (beta = 2.645), WC (beta = 2.945), TC (beta = 0.006), LDL-C (beta = 0.006), and anti-oxLDL antibodies (beta = 0.383), and a negative association with HDL-C (beta = -0.017). CONCLUSION: The results indicate that CRP is significantly associated with markers of cardiovascular risk in adolescents.


Subject(s)
C-Reactive Protein/analysis , Cardiovascular Diseases/diagnosis , Obesity/blood , Adolescent , Biomarkers/blood , Body Mass Index , Epidemiologic Methods , Female , Humans , Lipids/blood , Lipoproteins, LDL/immunology , Male , Nutritional Status/physiology
5.
São Paulo; s.n; 2008. 141 p. tab.
Thesis in Portuguese | LILACS | ID: lil-501015

ABSTRACT

Introdução: A obesidade é uma doença crônica, com determinantes genéticos, metabólicos e comportamentais, que se caracteriza pelo acúmulo de adiposidade no organismo. Em paralelo, as modificações oxidativas da lipoproteína na baixa densidade (LDL) também estão aumentadas na obesidade, gerando LDL minimamente oxidada, também chamada de LDL eletronegativa (LDL). Nesse contexto, os adolescentes, com sua intensa mudança de hábitos alimentares, comportamentos sociais e alterações anátomo-fisiológicas, compõem um grupo com risco de sobrepeso e obesidade aumentado. Objetivo: Avaliar a influência do sobrepeso e da obesidade na geração da lipoproteína de baixa densidade eletronegativa (LDL-) em adolescentes. Metodologia: Cento e cinquenta adolescentes com idade entre 10 e 15 anos, de ambos os sexos, foram avaliados quanto a antropometria (peso, altura, circunferência de braço e cintura) e o hábito alimentar (Questionário de Freqüência Alimentar). Avaliou-se ainda o conteúdo de LDL- e seus auto-anticorpos, o perfil lipídico, marcadores inflamatórios (IL-6 e PCR) e antioxidantes plasmáticos (a-tocoferol e retinol). Resultados: O perfil lipíco do grupo Obeso apresentou diferença significativa em relação aos Eutróficos observando maiores concentrações para Colesterol total (p=0,007) e LDL-c (p=0,033) e menores concentrações para HDL-c(p=0,001). O conteúdo de colesterol associado a VLDL e os Triglicerídeos foi semelhante entre grupos (p=0,126). Em relação ao conteúdo de LDL- no plasma, o grupo Eutrófico apresentou valores inferiores aos grupos Sobrepeso (p=0,021) e Obeso (p=0,015). Para as concentrações de auto-anticorpos anti-LDL- não houve diferença significativa entre os grupos. Para a concentração de IL-6 os 3 grupos apresentaram comportamento estatisticamente semelhante (p=0,678). De modo contrário, a concentração plasmática de PCR nos grupos Sobrepeso e Obeso foi superior a observada no grupo Eutrófico (p < 0,001). Avaliando os antioxidantes, a concentração de a-toco...


Subject(s)
Adolescent Nutrition , Body Weight , Lipoproteins, LDL/metabolism , Lipoproteins, LDL/blood , Obesity , Anthropometry , Hyperlipidemias , Feeding Behavior
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