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1.
Clin Nutr ; 2019 Jul 29.
Artigo em Inglês | MEDLINE | ID: mdl-31400996

RESUMO

BACKGROUND & AIMS: The bioimpedence phase angle has been considered as a predictor for morbidity and mortality in different clinical situations, although reference values from a large healthy population are lacking. The aim of this meta-analysis is to estimate mean phase-angle values in healthy individuals. METHODS: This meta-analysis systematically searched MEDLINE, EMBASE, The Cochrane Controlled Trials Register, SCIELO, LILACS, CINAHL, Web of Science and gray literature for studies estimating mean phase angles. Quality of evidence was assessed for all studies and subgroup (males and females) meta-analysis stratified by age group according to literature (up to 2; 3-5; 6-12; 13-15; 16-18; 19-28; 29-38; 39-48; 49-58; 59-69; 70-80 and >80 years of age) were conducted using random-effects models. RESULTS: A total of 46 studies including 249,844 subjects were selected for the present analysis. Males show a pooled estimate of the mean phase angle of 3.6 (95% CI: 3.0-4.1) for infants (0-2 y), increasing progressively to 7.3 (95% CI: 7.0-7.5) at the teenage phase (16-18 y), stabilizing during adult ages (18-38) and decreasing progressively with ongoing years with an estimate of 5.3 (95% CI: 4.5-6.0) for elderly above 80 years old. Similarly, females start from 3.7 (95% CI: 3.2-4.3) for infants (0-2 y), increasing progressively to 6.4 (95% CI: 6.1-6.8) at the teenage phase (16-18 y), stabilizing during adult ages (18-48) and decreasing progressively with ongoing years with an estimate of 5.4 (95% CI: 5.3-5.6) for elderly above 80 years old. Also, males have higher estimates than females for all age groups except for infants (0-2) and subjects older than 80 years old. Heterogeneity was high for all age groups. CONCLUSIONS: In both sexes, phase-angle values have a similar pattern that start from infants, increase progressively up to the teenage phase, stabilize during adult ages, and then decrease progressively in older subjects and the elderly.

2.
Eat Weight Disord ; 2019 Jul 23.
Artigo em Inglês | MEDLINE | ID: mdl-31338791

RESUMO

PURPOSE: Recent studies suggest that body mass index is not a reliable enough measurement for body composition in individuals, particularly in older and younger people. However, most research on body image has used the body mass index (BMI) as a physiological predictor of body satisfaction, particularly in children. The aim of this study was to investigate whether body composition is a better predictor of body size dissatisfaction in children than BMI. METHODS: This is a cross-sectional study. Healthy children and adolescents aged 5-19 years, sex male and female, were recruited using a convenience sample in Brazil. BMI was measured according to the international standardization method and body composition was measured by bioelectrical impedance analysis (BIA) with a portable device model (BIA InBodyS10 multi-frequency, USA). Body size dissatisfaction was assessed using the Kakeshita's Figure Rating Scale for Brazilian Children. Data were analyzed with logistic regression analysis. RESULTS: A total of 547 participants were evaluated, including 54% females and 67% Caucasian, with a mean age of 11.4 ± 3.8 years. The mean BMI was 20.5 ± 4.6 kg/m2, and the mean percentages of fat and lean mass were 23.01 ± 10.59% and 72.84 ± 10.03%, respectively. In the multivariable model, only body composition was significantly associated with body size dissatisfaction (odds ratio: 1.849 (1.085-3.149, p = 0.024) and 1.828 (1.043-3.202, p = 0.035), respectively). CONCLUSIONS: Body composition measures can better predict body size dissatisfaction in children and adolescents than BMI. This result may be relevant for the design of future studies on physiological indicators and body satisfaction. LEVEL OF EVIDENCE: Level V, cross-sectional study.

3.
Rev. bras. ciênc. esporte ; 40(4): 339-345, Oct.-Dec. 2018. tab
Artigo em Português | LILACS-Express | ID: biblio-977505

RESUMO

Resumo Foram avaliados os efeitos da prática orientada de exercícios físicos em pacientes encaminhados por médicos das equipes da Estratégia de Saúde da Família do município de Canela, Rio Grande do Sul, Brasil. Os exercícios foram feitos em academia de ginástica do SUS sob supervisão direta do professor de educação física. Os 120 participantes, 99 mulheres e 21 homens, entre 10 e 78 anos, foram acompanhados durante seis meses. Constatou-se melhoria do VO2máx (20,07 ± 14,14 para 31,68 ± 12,18 p < 0,001) e do tempo em segundos para percorrer uma milha (1.171 ± 228 para 954 ± 163 p < 0,001), entre outras variáveis quantitativas. A qualidade de vida percebida com o questionário WHOQOL-BREF evidenciou melhoria em todos os domínios: físico (67,6 ± 15,5 para 74,7 ± 12,4 p < 0,001); psicológico (62,4 ± 14,9 para 70,7 ± 12,6 p < 0,001); social (70,3 ± 16,8 para 76,4 ± 16,0 p < 0,001) e ambiental (62,8 ±12,4 para 68,2 ± 12,1 p < 0,001).


Abstract The effects of guided practice physical exercise in patients referred by medical teams of the Health Strategy Family of the municipality of Canela, Rio Grande do Sul, Brazil were evaluated. The exercises were performed in the fitness SUS under direct supervision of a physical education teacher. The 120 participants, 99 women and 21 men, aged 10 to 78 years, were followed for 6 months. It found improvement in VO2máx (20.07 ± 14.14 to 31.68 ± 12.18 p < 0.001) and time in seconds to travel 1 mile (1171 ± 228 to 954 ± 163 p < 0.001), among other quantitative variables. The perceived quality of life with the WHOQOL -BREF questionnaire showed improvement in all domains: physical (67.6 ± 15.5 to 74.7 ± 12.4 p < 0.001), psychological (62.4 ± 14.9 to 70.7 ± 12.6 p < 0.001), social (70.3 ± 16.8 to 76.4 ± 16.0 p < 0.001) and environmental (62.8 ± 12.4 to 68.2 ± 12, 1 p < 0.001).


Resumen Se evaluaron los efectos del ejercicio físico en pacientes derivados por médicos de los equipos de la Estrategia de Salud de la Familia del municipio de Canela, Rio Grande do Sul, Brasil. Los ejercicios se realizaron en el gimnasio del SUS bajo la supervisión directa de un profesor de educación física. Se hizo un seguimiento de 6 meses de los 120 participantes, 99 mujeres y 21 hombres, entre 10 y 78 años. Se encontró una mejoría en su VO2máx. (de 20,07 ± 14,14 a 31,68 ± 12,18; p <0,001) y el tiempo en segundos para correr 1 milla (de 1.171 ± 228 a 954 ± 163; p <0,001) entre otras variables cuantitativas. La percepción de la calidad de vida con el cuestionario WHOQOL-BREF mostró una mejora en todos los ámbitos: físico (de 67,6 ± 15,5 a 74,7 ± 12,4; p <0,001), psicológico (de 62,4 ± 14,9 a 70,7 ± 12,6; p <0,001), social (de 70,3 ± 16,8 a 76,4 ± 16,0; p <0,001) y del entorno (de 62,8 ± 12,4 a 68,2 ± 12,1; p <0,001). Esta mejora no está relacionada con el número de clases a las cuales asistieron.

4.
Cien Saude Colet ; 23(12): 4209-4219, 2018 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-30540004

RESUMO

This article aims to review systematically the evidence on nutritional assessment techniques and parameters used to determine the nutritional status of children and adolescents. The literature review and the selection of publications were performed using the Medline, Lilacs, SciELO, Embase, personal files. 17 studies were identified, 7 addressed the anthropometric indices as the main outcome, 7 analyzed the growth and development of children and adolescents through growth curves, and the remainder surveyed body composition. In general, all met the quality criteria, unless 6 of the articles who did not discuss the limitations. The literature review suggests several techniques and parameters that can be applied to determine the nutritional status of children and adolescents from different countries. Growth graphs are essential to assess the health of children, but depend greatly of the growth tables used. Although BMI can be practical, it does not distinguish body fat from lean mass. The best interpretation of anthropometry will depend of valid reference values for age range of the study population. BIA is a quick feasible method, but the measurement has some various nationalities.


Assuntos
Composição Corporal/fisiologia , Avaliação Nutricional , Estado Nutricional , Tecido Adiposo/fisiologia , Adolescente , Fatores Etários , Antropometria , Criança , Humanos , Valores de Referência
5.
Ciênc. Saúde Colet ; 23(12): 4209-4219, Dec. 2018. tab
Artigo em Inglês | LILACS-Express | ID: biblio-974786

RESUMO

Abstract This article aims to review systematically the evidence on nutritional assessment techniques and parameters used to determine the nutritional status of children and adolescents. The literature review and the selection of publications were performed using the Medline, Lilacs, SciELO, Embase, personal files. 17 studies were identified, 7 addressed the anthropometric indices as the main outcome, 7 analyzed the growth and development of children and adolescents through growth curves, and the remainder surveyed body composition. In general, all met the quality criteria, unless 6 of the articles who did not discuss the limitations. The literature review suggests several techniques and parameters that can be applied to determine the nutritional status of children and adolescents from different countries. Growth graphs are essential to assess the health of children, but depend greatly of the growth tables used. Although BMI can be practical, it does not distinguish body fat from lean mass. The best interpretation of anthropometry will depend of valid reference values for age range of the study population. BIA is a quick feasible method, but the measurement has some various nationalities.


Resumo O objetivo deste artigo é revisar sistematicamente as evidências sobre as técnicas de avaliação nutricional e parâmetros utilizados para determinar o estado nutricional em crianças e adolescentes. Revisão da literatura com busca nas bases de dados, Medline, Lilacs, SciELO e Embase, além de arquivos pessoais. Identificamos 17 artigos que relatavam dados de diferentes populações, sete estudos abordaram os índices antropométricos, quatro o crescimento e o desenvolvimento de crianças e adolescentes por meio de curvas de crescimento, e o restante a composição corporal. Todos preencheram os critérios de qualidade, com exceção das limitações. A revisão da literatura sugere diversas técnicas e parâmetros que podem ser aplicados para determinar o estado nutricional de crianças e adolescentes de diferentes países. Gráficos de crescimento são essenciais para avaliar a saúde de crianças, mas depende muito das tabelas de crescimento utilizadas. Embora o IMC seja prático, não distingue a gordura corporal de massa magra. Existem várias técnicas para avaliar proporções, tamanho e composição corporal. A melhor interpretação da antropometria dependerá de valores de referência válidos para a faixa etária da população estudada. BIA é um método factível, mas tem algumas limitações para a realização do exame.

6.
Clin Nutr ; 2018 Sep 04.
Artigo em Inglês | MEDLINE | ID: mdl-30224304

RESUMO

OBJECTIVE: To evaluate the relationship between physical activity and phase angle. DESIGN: Systematic Review and Meta-analysis. DATA SOURCES: Electronic searches of MEDLINE (via PUBMED), EMBASE, Cochrane Central Register of Controlled Trials (CENTRAL, The Cochrane Library), SciELO, LILACS, SPORTDiscus, Scopus, and Web of Science from inception to December 10th, 2017. ELIGIBILITY CRITERIA FOR SELECTING STUDIES: The PICOS strategy was defined, in which "P" corresponded to participants of any age, sex or ethnicity, "I" indicated any type of physical activity program, "C" denoted lack of exercise or irregular physical activity, "O" corresponded to the phase angle obtained by bio-impedance, and "S" indicated longitudinal or cross-sectional studies. RESULTS: In cross-sectional studies the phase angle was higher among the active individuals (MD = 0.70; 95% CI: 0.48, 0.92, P < 0.001), with low heterogeneity (I2 = 0%; P = 0.619). In longitudinal studies, the mean of the difference of phase angles from the baseline was significantly higher for the active group than the control group (MD = 0.30; 95% CI: 0.11, 0.49, P = 0.001), with low heterogeneity (I2 = 13%, P = 0.331). No evidence of publication bias was found and the overall risk of bias was moderate to high. SUMMARY/CONCLUSION: The positive association of physical activity with phase angle reinforces the importance of routinely including exercise in health care. We also identified the need for further studies to define with different types, intensities and frequencies of exercises should be conducted in order to find the best dose-effect relationship.

7.
J. pediatr. (Rio J.) ; 94(4): 374-379, July-Aug. 2018. tab
Artigo em Inglês | LILACS-Express | ID: biblio-954626

RESUMO

Abstract Objective: To evaluate the overall health-related quality of life in patients with bronchiolitis obliterans. Methods: Participants with a diagnosis of post-infectious bronchiolitis obliterans, who were being followed-up at two specialized outpatient clinics of Pediatric Pulmonology in Porto Alegre, Brazil, and controls aged between 8 and 17 years, of both genders, were included in the study. Controls were paired by gender, age, and socioeconomic level in relation to the group of participants with post-infectious bronchiolitis obliterans. The version of the Pediatric Quality of Life Inventory (PedsQ) tool validated for Brazil was applied for the assessment of Health-related Quality of Life, through an interview. The comparison of the Health-related Quality of Life means between the groups was performed using Student's t-test for independent samples and the chi-squared test, for categorical variables. Results: 34 patients diagnosed with post-infectious bronchiolitis obliterans and 34 controls participated in the study. The mean age of the children included in the study was 11.2 ± 2.5 years, and 49 (72%) of them were males. The groups showed no significant differences in relation to these variables. The quality of life score was significantly and clinically lower in the post-infectious bronchiolitis obliterans group when compared with controls in the health (72.36 ± 15.6, 81.06 ± 16.4, p = 0.031) and school domains (62.34 ± 20.7, 72.94 ± 21.3, p = 0.043), as well as in the total score (69.53 ± 14.9, 78.02 ± 14.8, p = 0.024), respectively. Conclusion: Patients with post-infectious bronchiolitis obliterans presented lower health-related quality of life scores when compared with healthy individuals in the total score and in the health and school domains.


Resumo Objetivo: Avaliar a qualidade de vida relacionada à saúde geral em participantes com bronquiolite obliterante. Métodos: Foram incluídos no estudo participantes com diagnóstico de bronquiolite obliterante pós-infecciosa que estavam em acompanhamento em dois ambulatórios especializados de pneumologia pediátrica em Porto Alegre, Brasil e controles, entre 8 e 17 anos, de ambos os sexos. Os controles foram pareados por sexo, idade e nível socioeconômico em relação ao grupo de participantes com bronquiolite obliterante pós-infecciosa. Para avaliação da Qualidade de Vida Relacionada à Saúde geral foi aplicado a versão validada para o Brasil do instrumento PedsQL (Pediatric Quality of Life Inventory), por meio de entrevista. A comparação entre as médias da Qualidade de Vida Relacionada à Saúde entre os grupos foi realizada mediante o teste t para amostras independentes e para as variáveis categóricas por teste qui-quadrado. Resultados: Participaram do estudo 34 pacientes com diagnóstico de bronquiolite obliterante pós-infecciosa e 34 controles. A média da idade das crianças incluídas foi de 11,2 ± 2,5 anos e 49 (72%) deles eram do sexo masculino. Os grupos não apresentaram diferenças significativas em relação a essas variáveis. O escore de qualidade de vida foi significativamente e clinicamente menor no grupo bronquiolite obliterante pós-infecciosa em comparação com o controle nos domínios saúde: (72,36 ± 15,6; 81,06 ± 16,4; p = 0,031); escolar: (62,34 ± 20,7; 72,94 ± 21,3; p = 0,043) e no escore total (69,53 ± 14,9; 78,02 ± 14,8, p = 0,024), respectivamente. Conclusão: Os pacientes com bronquiolite obliterante pós-infecciosa apresentam escores de qualidade de vida relacionados à saúde menor do que indivíduos saudáveis no escore total e nos domínios saúde e escolares.

8.
J Pediatr (Rio J) ; 94(4): 374-379, 2018 Jul - Aug.
Artigo em Inglês | MEDLINE | ID: mdl-29172039

RESUMO

OBJECTIVE: To evaluate the overall health-related quality of life in patients with bronchiolitis obliterans. METHODS: Participants with a diagnosis of post-infectious bronchiolitis obliterans, who were being followed-up at two specialized outpatient clinics of Pediatric Pulmonology in Porto Alegre, Brazil, and controls aged between 8 and 17 years, of both genders, were included in the study. Controls were paired by gender, age, and socioeconomic level in relation to the group of participants with post-infectious bronchiolitis obliterans. The version of the Pediatric Quality of Life Inventory (PedsQ) tool validated for Brazil was applied for the assessment of Health-related Quality of Life, through an interview. The comparison of the Health-related Quality of Life means between the groups was performed using Student's t-test for independent samples and the chi-squared test, for categorical variables. RESULTS: 34 patients diagnosed with post-infectious bronchiolitis obliterans and 34 controls participated in the study. The mean age of the children included in the study was 11.2±2.5 years, and 49 (72%) of them were males. The groups showed no significant differences in relation to these variables. The quality of life score was significantly and clinically lower in the post-infectious bronchiolitis obliterans group when compared with controls in the health (72.36±15.6, 81.06±16.4, p=0.031) and school domains (62.34±20.7, 72.94±21.3, p=0.043), as well as in the total score (69.53±14.9, 78.02±14.8, p=0.024), respectively. CONCLUSION: Patients with post-infectious bronchiolitis obliterans presented lower health-related quality of life scores when compared with healthy individuals in the total score and in the health and school domains.


Assuntos
Bronquiolite Obliterante/psicologia , Qualidade de Vida/psicologia , Adolescente , Bronquiolite Obliterante/etiologia , Estudos de Casos e Controles , Criança , Feminino , Humanos , Masculino , Testes de Função Respiratória , Fatores Socioeconômicos , Inquéritos e Questionários , Adulto Jovem
9.
J Pediatr (Rio J) ; 2018 Jul 04.
Artigo em Inglês | MEDLINE | ID: mdl-31327498

RESUMO

OBJECTIVE: To assess the level of agreement in health-related quality of life between children with Post-infectious Bronchiolitis Obliterans and their parent (so-called proxy). METHODS: Participants aged between 8and 17 years who had been previously diagnosed with Post-infectious Bronchiolitis Obliterans were regularly followed up at a pediatric pulmonology outpatient clinic. Parents or legal guardians (caregivers) of these patients were also recruited for the study. A validated and age-appropriate version of the Pediatric Quality of Life Inventory 4.0 was used for the assessment of health-related quality of life. Caregivers completed the corresponding proxy versions of the questionnaire. The correlation between self and proxy reports of health-related quality of life was determined by intra-class correlation coefficient and dependent t-tests. RESULTS: The majority of participants were males (79.4%), and the average age was 11.8 years. Intra-class correlations between each of the Pediatric Quality of Life Inventory 4.0 domains and the total score were all lower than 0.6, with a range between 0.267 (poor) and 0.530 (fair). When the means of each domain and the total score of the questionnaires were compared, caregivers were observed to have a significantly lower health-related quality of life score than children, with the exception of the social domain in which the difference was not significant. However, the differences in score exceeded the critical threshold difference of four points in all other domains. CONCLUSION: Proxies of children and adolescents with Post-infectious Bronchiolitis Obliterans appear to consistently perceive their children as having lower health-related quality of life than how the patients perceive themselves.

10.
Sci. med. (Porto Alegre, Online) ; 27(4): ID28184, out-dez 2017.
Artigo em Português | LILACS-Express | ID: biblio-876949

RESUMO

OBJETIVOS: Apresentar os resultados da avaliação nutricional de crianças e adolescentes, como parte de um programa municipal voltado à saúde de escolares. MÉTODOS: Um estudo transversal realizado entre fevereiro e abril de 2017 avaliou o perfil nutricional de pré-escolares e escolares do município de Canela, Rio Grande do Sul. Foram incluídos estudantes da pré-escola ao nono ano das escolas públicas municipais, atendidos pelo Programa Esporte e Saúde em Canela. Para avaliação nutricional foram aferidas a massa corporal e a estatura, sendo o estado nutricional classificado segundo o Escore Z para o índice de massa corporal. RESULTADOS: Foram avaliados 2691 pré-escolares e escolares, sendo 1408 (52,3%) do sexo masculino. A média de idade foi de 9,63±3,1 anos, o peso médio de 38,59±16,4 kg, a altura média de 139±18 cm e o índice de massa corporal médio 18,9±4,3 kg/m2 . Quanto ao estado nutricional, 44 (1,7%) foram classificados como magreza, 1725 (64,1%) como eutrofia e 922 (34,2%) tinham peso excessivo, sendo sobrepeso 528 (19,6%), obesidade 286 (10,6%) e obesidade grave 108 (4%). CONCLUSÕES: Um número expressivo dos estudantes da rede pública do município de Canela apresentava sobrepeso ou obesidade, o que reforça a necessidade de programas de prevenção e tratamento da obesidade nessa população. O Programa Esporte e Saúde em Canela tem como proposta colocar em prática estratégias de incentivo aos estudantes para a prática de atividade física e alimentação saudável.


AIMS: To present the results of the nutritional evaluation of children and adolescents, as part of a municipal program aimed at the health of schoolchildren. METHODS: A cross-sectional study conducted between February and April 2017 evaluated the nutritional profile of preschool children and schoolchildren in the city of Canela, Rio Grande do Sul state, Brazil. Students from pre-school to the ninth grade of the municipal public schools attended by the Sport and Health Program in Canela were included. For nutritional evaluation, body mass and height were measured, and the nutritional status was classified according to the Z score for body mass index. RESULTS: We evaluated 2691 preschoolers and schoolchildren, with 1408 (52.3%) males. The mean age was 9.63±3.1 years, the mean weight was 38.59±16.4 kg, the mean height was 139±18 cm and the mean body mass index was 18.9±4.3 kg/m2 . Regarding nutritional status, 44 (1.7%) were classified as thinness, 1725 (64.1%) as eutrophic and 922 (34.2%) were overweight, being overweight 528 (19.6%), obesity 286 (10.6%) and severe obesity 108 (4%). CONCLUSIONS: A significant number of students from public schools in the municipality of Canela were overweight or obese, which reinforces the need for programs to prevent and treat obesity in this population. The Sport and Health Program in Canela aims to put into practice strategies to encourage students to practice physical activity and healthy eating.

11.
Public Health Genomics ; 20(5): 286-292, 2017.
Artigo em Inglês | MEDLINE | ID: mdl-29439273

RESUMO

BACKGROUND: The goal of this systematic review and meta-analysis is to determine the effect of diet on telomere length. METHODS: We searched the following databases: MEDLINE, Embase, LILACS, CINAHL, ISI Web of Science, and Scopus, as well as the Cochrane Central Register of Controlled Trials and the National Institutes of Health, from inception to December 2016. Articles that assessed effects of diet on telomere length were included. RESULTS: A total of 2,128 studies were identified, 30 were read in full, and 7 were systematically reviewed. Five RCTs were included in the meta-analysis, covering 9 diets; a total of 533 participants were included. Study heterogeneity (I2) was 89%, and differences were not identified regarding average telomere lengths (mean difference 1.06; 95% CI -1.53 to 3.65). CONCLUSION: The available evidence suggests that there is no effect of diet on telomere length, but the strong heterogeneity in the type and duration of dietary interventions does not allow any final statement on the absence of an effect of diet on telomere length.


Assuntos
Dieta/métodos , Encurtamento do Telômero/fisiologia , Idoso , Feminino , Humanos , Expectativa de Vida , Masculino , Pessoa de Meia-Idade , Estatística como Assunto , Telômero/fisiologia
12.
Obesity (Silver Spring) ; 23(11): 2165-74, 2015 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-26407932

RESUMO

OBJECTIVE: The main objective of this systematic review is to assess the effects of obesity on telomere length. METHODS: The following databases were searched: MEDLINE, EMBASE, Cochrane Central Register of Controlled Trials (CENTRAL, The Cochrane Library), LILACS, SPORTdiscus, and Web of Science from inception to August 2014. The search was performed using the following combinations of terms: telomere AND "overweight" OR "obesity" OR "adiposity," without language restriction. RESULTS: Sixty-three original studies were included in this systematic review, comprising 119,439 subjects. Thirty-nine studies showed either weak or moderate correlation between obesity and telomere length; however, they showed an important heterogeneity. CONCLUSIONS: There is a tendency toward demonstrating negative correlation between obesity and telomere length. The selected studies showed weak to moderate correlation for the main search, and there was an important heterogeneity. For this reason, the causal relationship of obesity and telomere length remains open. Additional controlled longitudinal studies are needed to investigate this issue.


Assuntos
Obesidade/genética , Homeostase do Telômero/fisiologia , Telômero/metabolismo , Adiposidade/genética , Peso Corporal/genética , Peso Corporal/fisiologia , Feminino , Humanos , Leucócitos/metabolismo , Leucócitos/patologia , Obesidade/complicações , Obesidade/epidemiologia , Sobrepeso/complicações , Sobrepeso/epidemiologia , Sobrepeso/genética
13.
Sci. med ; 25(2): ID20313, abr.-jun. 2015.
Artigo em Inglês | LILACS-Express | ID: biblio-832143

RESUMO

Aims: Published evidence suggests that Vitamin D supplementation may have a protective effect on infectious disease of the lower respiratory tract. The objective of this review was to critically appraise the effects of vitamin D intake in the prevention of acute viral bronchiolitis in children. Methods: We searched the databases Medline, EMBASE, Web of Science, LILACS, and Cochrane Central Register of Controlled Trials, until December 2014, using the keywords: "Vitamin D" or cholecalciferol or ergocalciferol and "bronchiolitis, viral" or "viral bronchiolitis" or "bronchiolitides, viral" or "viral bronchiolitides". Studies evaluating the effect of vitamin D intake in the prevention of acute viral bronchiolitis in young children were included. Studies with less than two weeks of intervention and review articles were excluded. Results: The search identified 241 articles, among which 20 articles were selected for full reading and two articles were included in the systematic review, comprising 296 children. No study measured serum levels of vitamin D. One of the included studies was a clinical trial, where the number of episodes of acute viral bronchiolitis was significantly lower in children supplemented with vitamin D (Group I: mean 0.6±0.7 Group II: mean 1.4±0.9; P=0.001). The other, a case-control study, did not find a significant relationship between the occurrence of acute viral bronchiolitis cases and the intake of vitamin D (odds ratio 1.7, 95% confidence interval 0.7-4.0). Conclusions: Current scientific evidence is insufficient to prove clinical benefits of vitamin D in preventing acute viral bronchiolitis.


Objetivos: Evidências publicadas sugerem que a suplementação da vitamina D pode ter efeito protetor nas infecções do trato respiratório inferior. O objetivo desta revisão foi avaliar os efeitos da ingestão de vitamina D na prevenção da bronquiolite viral aguda em crianças. Métodos: Foram feitas buscas nas bases de dados Medline, EMBASE, Web of Science, LILACS e Cochrane Central Register of Controlled Trials, até dezembro de 2014, usando os descritores "Vitamin D" ou cholecalciferol ou ergocalciferol e "bronchiolitis, viral" ou "viral bronchiolitis" ou "bronchiolitides, viral" ou "viral bronchiolitides". Foram incluídos estudos que avaliaram o efeito da ingesta da vitamina D na prevenção da bronquiolite viral aguda em crianças. Estudos com intervenção menor que duas semanas e artigos de revisão foram excluídos. Resultados: A busca identificou 241 artigos, entre os quais 20 artigos foram selecionados para leitura na íntegra e dois artigos foram incluídos na revisão sistemática, incluindo 296 crianças. Nenhum estudo mediu os níveis séricos de vitamina D. Um dos estudos incluídos foi um ensaio clinico, no qual o número de episódios de bronquiolite foi significativamente menor nas crianças suplementadas com vitamina D (Grupo I: média 0,6±0,7 Grupo II: média 1,4 ±0,9; P=0,001). No outro, um estudo de casos e controles, não se encontrou relação significativa entre casos de bronquiolite viral aguda e ingesta de vitamina D (odds ratio 1,7 ­ intervalo de confiança 95% 0,7-4,0). Conclusões: As evidências científicas atuais são insuficientes para comprovar os benefícios clínicos da vitamina D na prevenção da bronquiolite viral aguda.

14.
Ageing Res Rev ; 22: 72-80, 2015 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-25956165

RESUMO

The aim of this systematic review is to assess the effects of exercise on telomeres length. We searched the following databases: MEDLINE, EMBASE, Cochrane Central Register of Controlled Trials (CENTRAL, The Cochrane Library), Scopus, LILACS, SPORTDiscus and Web of Science from inception to August 2014. All articles that assessed the effects of exercise in telomere length were included in this review. The search strategy used the following combinations of terms: telomere AND "motor activity" OR exercise OR "physical activity". Two reviewers, working independently, screened all titles and abstracts to identify studies that could meet inclusion criteria. Whenever possible, and if appropriate, we performed a random-effect meta-analysis of study outcomes. Thirty-seven original studies were included in this systematic review, including 41,230 participants. Twenty articles did not find statistically significant association, whereas 15 described a positive association. Two papers found an inverted "U" correlation. There is a tendency toward demonstrating an effect of exercise on telomere length. Few prospective studies were found, many studies did not reach statistical significance and there was an important methodological diversity. For this reason, a possible significant association between physical activity and telomere length remains an open question.


Assuntos
Atividade Motora/fisiologia , Homeostase do Telômero/fisiologia , Telômero , Humanos , Estatística como Assunto
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