Skeletal changes of the axial axis and lower limbs in overweight children and adolescents.

OBJECTIVE: To evaluate the presence of axial skeletal deviations in children and adolescents and to relate them to body mass index (BMI), age and sex. METHODS: 101 patients aged 7 to 17 years old were included in this study; exclusion criteria were primary orthopedic diseases and syndromes or treatments that affect growth. Patients were grouped according to their BMI Z-score: eutrophic (n=29), overweight (n=18) and obese (n=54). They underwent static clinical inspection was made by simetrographic technique. Intermaleolar distance was obtained, Adam's forward bend and tiptoe tests were performed. RESULTS: When comparing obese and eutrophic patients, changes in the cervical spine (p<0.01), spine (p<0.001), hip (p<0.01) and shoulders (p<0.001) were present in more than half of the obese patients (62.5%, 62.2%, 79.9% and 55.4%, respectively). Changes in the knees were more frequent among obese (p<0.001) when compared to eutrophic patients. There was no variation regarding age or sex (p>0.05). CONCLUSIONS: being overweight influences skeletal deviations in children and adolescents.

Skeletal changes of the axial axis and lower limbs in overweight children and adolescents / Alterações esqueléticas do eixo axial e de membros inferiores em crianças e adolescentes com excesso de peso

Abstract Objective: To evaluate the presence of axial skeletal deviations in children and adolescents and to relate them to body mass index (BMI), age and sex. Methods: 101 patients aged 7 to 17 years old were included in this study; exclusion criteria were primary orthopedic diseases and syndromes or treatments that affect growth. Patients were grouped according to their BMI Z-score: eutrophic (n=29), overweight (n=18) and obese (n=54). They underwent static clinical inspection was made by simetrographic technique. Intermaleolar distance was obtained, Adam's forward bend and tiptoe tests were performed. Results: When comparing obese and eutrophic patients, changes in the cervical spine (p<0.01), spine (p<0.001), hip (p<0.01) and shoulders (p<0.001) were present in more than half of the obese patients (62.5%, 62.2%, 79.9% and 55.4%, respectively). Changes in the knees were more frequent among obese (p<0.001) when compared to eutrophic patients. There was no variation regarding age or sex (p>0.05). Conclusions: being overweight influences skeletal deviations in children and adolescents.

RESUMO Objetivo: Avaliar a presença de desvios do esqueleto axial em crianças e adolescentes e relacioná-los com índice de massa corpórea, idade e sexo. Métodos: Fizeram parte deste estudo 101 pacientes de sete a 17 anos, os quais não possuíam doenças ortopédicas primárias, síndromes ou tratamentos que afetassem o crescimento. Os pacientes foram agrupados conforme os escores Z do índice de massa corpórea em: eutróficos (n=29), com sobrepeso (n=18) e obesos (n=54). Foram avaliados por meio da inspeção clínica estática, com simetrógrafo de parede, medida da distância intermaleolar, manobra de Adams e teste da ponta dos pés. Resultados: Quando comparados os pacientes obesos com os eutróficos, alterações de coluna cervical (p<0,01), coluna (p<0,001), quadril (p<0,01) e ombros (p<0,001) ocorreram em mais da metade dos obesos (62,5, 62,2, 79,9 e 55,4%, respectivamente). Alterações nos joelhos foram mais frequentes entre os obesos (p<0,001) quando comparados aos eutróficos. Não houve variação com a idade ou o sexo (p>0,05). Conclusões: Conclui-se que o excesso de peso exerce influência sobre desvios do esqueleto em crianças e adolescentes.

Prevalence of sarcopenia in women at stable weight phase after Roux-en-Y gastric bypass.

Objective: Evaluating the prevalence of sarcopenia in women submitted to bariatric surgery - Roux-en-Y gastric bypass. Design: Observational, cross-sectional study. Subjects and methods: Women (18-65 years old) who underwent bariatric surgery (BG) ≥ 2 years and reached stable weight ≥ 6 months, were investigated. Control group (CG) comprised non-operated matched women with obesity. Body composition was determined through dual-energy X-ray absorptiometry. Low lean mass (LLM) was defined as appendicular lean mass index (ALM kg/height m2) < 5.5 kg/m2. Physical strength was assessed through dynamometer and sit-to-stand test (SST), whereas performance was assessed through 4-m gait speed and Short Physical Performance Battery Tests (SPPB). Sarcopenia was diagnosed in the presence of LLM and low strength. Results: One-hundred and twenty women (60 in each group, 50 ± 9.7 years old) were investigated. All anthropometric and body composition parameters were lower in BG than in CG, whereas strength and performance were similar between groups. Women with reduced strength presented high total fat mass and low physical activity level (p < 0.005). LLM was observed in 35% of BG and in 18.3% of CG (p = 0.04), whereas sarcopenia was diagnosed in 28.3% of BG and in 16.6% of CG (p = 0.12). Sarcopenic women in BG had better performance both in SST (p = 0.001) and SPPB (p = 0.004). Total lean mass (OR:1.41, 95% CI [1.18; 1.69], p < 0.001) and obesity (OR: 38.2 [2.27; 644.12], p < 0.001) were associated with sarcopenia in the multivariate analysis. Conclusion: Despite great weight loss, sarcopenia prevalence did not increase in BG and its presence was influenced by total lean mass and obesity.

Prevalence of sarcopenia in women at stable weight phase after Roux-en-Y gastric bypass

ABSTRACT Objective: Evaluating the prevalence of sarcopenia in women submitted to bariatric surgery - Roux-en-Y gastric bypass. Design: Observational, cross-sectional study. Subjects and methods: Women (18-65 years old) who underwent bariatric surgery (BG) ≥ 2 years and reached stable weight ≥ 6 months, were investigated. Control group (CG) comprised non-operated matched women with obesity. Body composition was determined through dual-energy X-ray absorptiometry. Low lean mass (LLM) was defined as appendicular lean mass index (ALM kg/height m2) < 5.5 kg/m2. Physical strength was assessed through dynamometer and sit-to-stand test (SST), whereas performance was assessed through 4-m gait speed and Short Physical Performance Battery Tests (SPPB). Sarcopenia was diagnosed in the presence of LLM and low strength. Results: One-hundred and twenty women (60 in each group, 50 ± 9.7 years old) were investigated. All anthropometric and body composition parameters were lower in BG than in CG, whereas strength and performance were similar between groups. Women with reduced strength presented high total fat mass and low physical activity level (p < 0.005). LLM was observed in 35% of BG and in 18.3% of CG (p = 0.04), whereas sarcopenia was diagnosed in 28.3% of BG and in 16.6% of CG (p = 0.12). Sarcopenic women in BG had better performance both in SST (p = 0.001) and SPPB (p = 0.004). Total lean mass (OR:1.41, 95% CI [1.18; 1.69], p < 0.001) and obesity (OR: 38.2 [2.27; 644.12], p < 0.001) were associated with sarcopenia in the multivariate analysis. Conclusion: Despite great weight loss, sarcopenia prevalence did not increase in BG and its presence was influenced by total lean mass and obesity.

Comparison between non-invasive methods and liver histology to stratify liver fibrosis in obese patients submitted to bariatric surgery.

BACKGROUND: Obesity is a multifactorial disease characterized by fat accumulation, usually associated with non-alcoholic fatty liver disease, which can lead to advanced fibrosis or even cirrhosis. Bariatric surgery (BS) is a treatment approved for weight loss in morbidly obese patients. However, complications from this modality of treatment have been reported and liver cirrhosis connotes more risk procedure. AIMS: Evaluate non-invasive methods transient elastography (THE) and scores to establish the degree of liver fibrosis in patients submitted to BS, comparing their performance with liver histology. METHODS: We calculated liver fibrosis by non-invasive scores AST to platelet ration index (APRI), fibrosis-4 (FIB-4) and non-alcoholic fatty liver disease (NAFLD) score and THE before and 6 months after the bariatric surgery. The results were compared to liver histology. RESULTS: We included 85 patients, 69.4% females, with a mean age of 36 years, with a mean body mass index (BMI) of 41 kg/m2. The non-invasive scores were able to exclude clinically significant fibrosis in 85.9% (APRI) and advanced fibrosis in 96.5% (FIB-4) and 51.8% (NAFLD score). When comparing with the histological findings, the correlation with elastography was 45.9% for the same degree of fibrosis, with high negative predictive value (94.4%) in pre-surgical analysis. In the post-surgical analysis, the correlation with histology was 69.4% for THE and the negative predictive value to exclude clinically significant fibrosis was 98.5%. CONCLUSION: THE showed low correlation with histology in the pre-surgical analysis. All the methods had better results in post bariatric evaluation comparing with pre-bariatric data and the non-invasive FIB-4 score showed the best of them.

Personality type, eating behaviour and suicide risk in women in treatment for obesity.

OBJECTIVES: To determine the personality types of women in treatment for obesity and the associations among their personality characteristics, eating behaviour and suicide risk. SUBJECTS: Sixty women in pharmacological treatment for obesity (clinical group: CG) and 60 women post-bariatric gastric bypass surgery (surgical group: SG) were evaluated. METHODS: This was an observational and transversal study conducted in a specialized outpatient unit. Personality types were evaluated through the Myers-Briggs Type Indicator (MBTI) test. A semi-structured questionnaire that investigated sociodemographic and lifestyle characteristics was applied, along with the Binge Eating Scale (BES) and the Columbia-Suicide Severity Rating Scale (C-SSRS). RESULTS: Among the 16 possible personality types, the ISFJ (Introversion, Sensing, Feeling, Judging) and ESFJ (Extraversion, Sensing, Feeling, Judging) types were more frequent. In the SG, 32% of the participants presented with the ISFJ type, and 18.3% presented with the ESFJ type. In the CG, 33% presented with the ISFJ type and 25% presented with the ESFJ type. There was a higher prevalence of binge eating behaviour in the CG (Cohen's d: - 0.47; p < 0.0001) and a higher tendency to graze in the SG (p = 0.005). Participants with introverted attitudes showed a higher prevalence of severe binging (13.3% vs 3.3%, p = 0.07), suicidal thoughts throughout life (STTL) (69.5% vs 45.1%, p = 0.007), and recent suicidal thoughts (RSTs) (30.4% vs 11.7%, p = 0.01) in comparison to extraverted participants. BMI was associated with a higher chance of STTL (37.96 ± 6.41 kg/m2 with STTL vs 33.92 ± 4.68 kg/m2 without STTL; p = 0.01) in the CG compared to the SG. RSTs were associated with BMI in the SG (34.47 ± 3.86 kg/m2 with RSTs vs 30.61 ± 5.72 kg/m2 without RSTs; p = 0.01). In the multivariable analysis, personality type (ISFJ) was an independent predictor of STTL (OR: 3.6; CI 1.3-10.2; p = 0.01) and Suicidal Behaviour (SB) (OR: 9.7; CI 2.44-38.9; p = 0.001). Conversely, while BMI was an independent factor associated with binge eating, personality type was not. CONCLUSIONS: Women who were in pharmacological treatment for obesity or were post-bariatric surgery present specific types of personality. Introversion was associated with a higher BMI and a higher risk of suicidal thoughts. LEVEL OF EVIDENCE: Level V, cross-sectional descriptive study.

O complexo cultural e o complexo do comer: um estudo com mulheres obesas / The cultural complex and the complex of eating: a study with obese women / El complejo cultural y el complejo de comer: un estudio con mujeres obesas

A obesidade é considerada um problema epidêmico, que acarreta graves prejuízos na saúde física e emocional dos indivíduos. Em busca de investigar os fenômenos psicológicos e culturais envolvidos na obesidade, propõe-se uma visão compreensiva-simbólica dos discursos de mulheres obesas pacientes de um Hospital Geral em Curitiba-Pr. O estudo baseou-se em constructos teóricos como: a Teoria dos Complexos para Jung, o Inconsciente Cultural para Henderson, o Complexo Cultural para Singer e Kimbles. A partir desses visa-se propor um novo constructo teórico: o Complexo do Comer, que é representado pelas experiências vinculadas ao tema alimentação, e relacioná-lo com o Complexo Cultural. Observa-se, a partir dos discursos, que ambos os Complexos expressam-se, paradoxalmente, a forma de incorporar ideias inconscientes de um corpo ideal, que repousam em uma imagem arquetípica da fome e da falta. Num contexto da saúde, esta falta marca a necessidade de um preencher que muitas vezes se faz excessivo e desnaturado, a qual deve ser considerada no tratamento multidisciplinar da obesidade, por meio de estratégias terapêuticas que contemplem essa realidade e a visão de totalidade psíquica.

Obesity is considered an epidemic problem, which causes serious damage to the physical and emotional health of individuals. In order to investigate the psychological and cultural phenomena involved in obesity, we propouse a comprehensive and symbolic view of the discourses of obese women, patients from a General Hospital in Curitiba-Pr. The study was based on theoretical constructs such as: Jung's Complex Theory, Henderson's Cultural Unconscious, Singer and Kimbles' Cultural Complex. From these theories, it is aimed to propose a new theoretical construct: the Eating Complex, which is represented by experiences related to the theme of food, and relate it to the Cultural Complex. It is observed from the discourses that both Complexes paradoxically express themselves in a way to incorporate unconscious ideas of an ideal body, that rests in an archetypal image of hunger and lack. In a context of health, this lack marks the need for a filling that is often excessive and denatured, which should be considered in the multidisciplinary treatment of obesity, through therapeutic strategies that contemplate this reality and the vision of psyche totality.

La obesidad es considerada un problema epidémico, que acarrea graves perjuicios en la salud física y emocional de los individuos. En busca de investigar los fenómenos psicológicos y culturales involucrados en la obesidad, se propone una visión comprensiva-simbólica de los discursos de mujeres obesas pacientes de un Hospital General en Curitiba-Pr. El estudio se basó en constructos teóricos como: la Teoría de los Complejos para Jung, el Inconsciente Cultural para Henderson, el Complejo Cultural para Singer y Kimbles. A partir de estos se pretende proponer un nuevo constructo teórico: el Complejo del Comer, que es representado por las experiencias vinculadas al tema alimentación, y relacionarlo con el Complejo Cultural. Se observa, a partir de los discursos, que ambos Complejos se expresan paradójicamente la forma de incorporar ideas inconscientes de un cuerpo ideal, que reposan en una imagen arquetípica del hambre y de la falta. En un contexto de la salud, esta falta marca la necesidad de un relleno que muchas veces se hace excesivo y desnaturalizado, la cual debe ser considerada en el tratamiento multidisciplinario de la obesidad, a través de estrategias terapéuticas que contemplen esa realidad y la visión de totalidad psíquica.

Imagens arquetípicas na série de sonhos de um caso de bulimia nervosa / Archetypal images in the dream series of a nervous bulimia case / Imágenes arquetípicas en la serie de sueños de un caso de bulimia nerviosa

Os transtornos alimentares, em específico a Bulimia, no viés simbólico, aponta cisões internas ao longo do desenvolvimento psicológico. O modelo de corpos perfeitos influencia no imaginário coletivo, em busca por um ideal estabelecido. O objetivo do estudo é analisar, a partir da Psicologia Analítica, uma série de sonhos, explicitando a dinâmica psíquica e os aspectos do complexo alimentar de uma paciente de 24 anos, com diagnóstico de bulimia nervosa. Os resultados apontaram para a fragmentação entre as funções do masculino e feminino, uma persona voltada a demandas sociais e fragilidade na constituição psíquica. A discussão buscou correlacionar as relações primais entre mãe e filha e os principais impactos no desenvolvimento da personalidade diante das adversidades da vida. Os sintomas e os sonhos da paciente expressaram-se como possibilidades de controle do processo psicológico, assim como o expulsar de conteúdos indigestos e necessitados de ressignificação.

The eating disorders, specifically Bulimia, in the symbolic bias points internal splits along the psychological development. The model of perfect bodies influences the collective imaginary, in search of an established ideal. The aim of the study is to analyze, from the Analytic Psychology, a series of dreams, explaining the psychic dynamics and the aspects of the food complex of a 24 year-old patient with diagnosis of nervous bulimia. The results pointed to the fragmentation between masculine and feminine functions, a person focused on social demands and fragility in the psychic constitution. The discussion sought to correlate the primary relations between mother and daughter and the main impacts on the development of the personality, facing the adversities of life. The patient's symptoms and dreams were expressed as possibilities of control of the psychological process, as well as the expulsion of indigestible contents and in need of resignification.

Los trastornos alimentarios, en particular la Bulimia, en el sesgo simbólico apunta escisiones internas a lo largo del desarrollo psicológico. El modelo de cuerpos perfectos influencian en el imaginario colectivo, en busca de un ideal establecido. El objetivo del estudio es analizar, a partir de la Psicología Analítica, una serie de sueños, explicitando la dinámica psíquica y los aspectos del complejo alimentario de una paciente de 24 años, con diagnóstico de bulimia nervosa. Los resultados apuntaron a la fragmentación entre las funciones del masculino y femenino, una persona volcada a demandas sociales y fragilidad en la constitución psíquica. La discusión buscó correlacionar las relaciones prima entre madre e hija y los principales impactos en el desarrollo de la personalidad, frente a las adversidades de la vida. Los síntomas y los sueños de la paciente, se expresaron como posibilidades de control del proceso psicológico, así como el expulsar de contenidos indigestos y necesitados de resignificación.

Adrb2 gln27glu polymorphism associated with adiposity indicators and il-10 in adolescents / Polimorfismo adrb2 gln27glu associado a indicadores de adiposidade e il-10 em adolescentes / Polimorfismo adrb2 gln27glu asociado a indicadores de adiposidad e il-10 en adolescentes

ABSTRACT Introduction: Studies of association between obesity and genetic factors have demonstrated a significant contribution of polymorphisms related to body fat distribution and subclinical inflammatory process. Objective: To investigate the association between genotypes of the Gln27Glu polymorphism of the ADRB2 gene and indicators of adiposity, inflammatory markers, metabolic parameters and parameters of physical fitness in overweight adolescents. Methods: A total of 44 male and female adolescents, aged between 13 and 17 years, with positive clinical diagnosis of overweight, were divided into two groups according to the Gln27Glu polymorphism genotypes of the ADRB2 gene: a) Group of carriers of the 27Glu allele (Gln27Glu/Glu27Glu) (n = 22); b) Group of non-carriers of the 27Glu allele (Gln27Gln) (n = 22). Both groups were evaluated for body composition, sexual maturation, cardiorespiratory fitness variables and indicators of muscle strength. Basal glycemia and insulin, lipid profile and inflammatory profile were measured. Abdominal subcutaneous and visceral adiposities were evaluated by ultrasonography. Genotyping of the Gln27Glu polymorphism of the ADRB2 gene was performed by the Taqman allelic discrimination assay. Results: The genotype frequency found was: Gln/Gln (n = 22) (50.0%), Gln/Glu (n = 18) (41.0%) and Glu/Glu (n = 4) %). The frequency of the 27Glu allele was 29.5%. The group of adolescent carriers of the 27Glu allele of the ADRB2 gene presented higher mean adiposity indicators (abdominal circumference, trunk fat mass and visceral fat), as well as lower IL-10 concentrations when compared to non-carriers. Conclusions: The 27Glu allele was associated with adiposity indicators in overweight adolescents, while subcutaneous abdominal fat exhibited an inverse relationship with inflammatory variables and maximum oxygen uptake, which may result in more damage to health. Level of evidence III; Case-control study.

RESUMO Introdução: Estudos de associação entre a obesidade e fatores genéticos têm demonstrado a significativa contribuição de polimorfismos relacionados à distribuição de gordura corporal e processo inflamatório subclínico. Objetivo: Investigar a associação entre os genótipos do polimorfismo Gln27Glu do gene ADRB2 e indicadores de adiposidade, marcadores inflamatórios, parâmetros metabólicos e de aptidão física em adolescentes com excesso de peso. Métodos: Participaram 44 adolescentes, de ambos os sexos, com idade entre 13 e 17 anos, com diagnóstico clínico positivo de excesso de peso, divididos em dois grupos conforme os genótipos do polimorfismo Gln27Glu do gene ADRB2: a) Grupo de portadores do alelo 27Glu (Gln27Glu/Glu27Glu) (n=22); b) Grupo de não portadores do alelo 27Glu (Gln27Gln) (n=22). Ambos os grupos foram avaliados quanto à composição corporal, maturação sexual, variáveis de aptidão cardiorrespiratória e indicadores de força muscular. Foram dosados glicemia e insulina basais, perfil lipídico e perfil inflamatório. As adiposidades abdominais subcutânea e visceral foram avaliadas através de ultrassonografia. A genotipagem do polimorfismo Gln27Glu do gene ADRB2 foi realizada através do ensaio de discriminação alélica Taqman. Resultados: A frequência genotípica encontrada foi: Gln/Gln (n=22) (50,0%), Gln/Glu (n=18) (41,0%) e Glu/Glu (n=4) (9,0%). A frequência do alelo do 27Glu foi de 29,5%. O grupo de adolescentes portadores do alelo 27Glu do gene ADRB2 apresentou maiores médias de indicadores de adiposidade (circunferência abdominal, massa gorda troncular e gordura visceral), assim como menores concentrações de IL-10 quando comparados aos não portadores. Conclusões: O alelo 27Glu apresentou associação com os indicadores de adiposidade em adolescentes com excesso de peso, assim como a gordura abdominal subcutânea demonstrou relação inversa com as variáveis inflamatórias e o consumo máximo de oxigênio, podendo resultar em maiores prejuízos à saúde. Nível de evidência III; Estudo de caso-controle.

RESUMEN Introducción: Estudios de asociación entre la obesidad y factores genéticos han demostrado la significativa contribución de polimorfismos relacionados a la distribución de grasa corporal y proceso inflamatorio subclínico. Objetivo: Investigar la asociación entre los genotipos del polimorfismo Gln27Glu del gen ADRB2 e indicadores de adiposidad, marcadores inflamatorios, parámetros metabólicos y de aptitud física en adolescentes con exceso de peso. Métodos: Participaron 44 adolescentes, de ambos sexos, con edad entre 13 y 17 años, con diagnóstico clínico positivo de exceso de peso, divididos en dos grupos según los genotipos del polimorfismo Gln27Glu del gen ADRB2: a) Grupo de portadores del alelo 27Glu (Gln27Glu/Glu27Glu) (n = 22); b) Grupo de no portadores del alelo 27Glu (Gln27Gln) (n = 22). Ambos grupos fueron evaluados cuanto a la composición corporal, madurez sexual, variables de aptitud cardiorrespiratoria e indicadores de fuerza muscular. Fueron dosificadas glucemia e insulina basales, perfil lipídico y perfil inflamatorio. Las adiposidades abdominales subcutánea y visceral fueron evaluadas a través de ultrasonografía. El genotipado del polimorfismo Gln27Glu del gen ADRB2 fue realizado a través del ensayo de discriminación alélica Taqman. Resultados: La frecuencia genotípica encontrada fue: Gln/Gln (n = 22) (50,0%), Gln/Glu (n = 18) (41,0%) y Glu/Glu (n = 4) (9,0%). La frecuencia del alelo del 27Glu fue del 29,5%. El grupo de adolescentes portadores del alelo 27Glu del gen ADRB2 presentó mayores promedios de indicadores de adiposidad (circunferencia abdominal, masa grasa troncular y grasa visceral), así como menores concentraciones de IL-10, en comparación con los no portadores. Conclusiones: El alelo 27Glu presentó asociación con los indicadores de adiposidad en adolescentes con exceso de peso, así como la grasa abdominal subcutánea demostró relación inversa con las variables inflamatorias y el consumo máximo de oxígeno, lo que puede resultar en mayores perjuicios a la salud. Nivel de Evidencia III; Estudio de caso-control.

Localized fat-free mass does not influence muscle strength in obese and non-obese boys / Massa livre de gordura localizada não influencia força muscular em rapazes obesos e não obesos / Masa libre de grasa localizada no influencia la fuerza muscular en jóvenes obesosy no obesos

INTRODUCTION: Obesity in adolescents has increased worldwide, and is generally associated with poor eating habits and physical inactivity. OBJECTIVE: To compare absolute and relative muscle strength with body mass (BM), fat-free mass (FFM) and localized FFM of upper and lower limbs among obese and non-obese adolescents. METHODS: BM, height and body mass index (BMI) were verified in 39 male adolescents (aged 13-17 years). Body composition was measured by dual-energy X-ray absorptiometry (DXA) and maximal strength of upper and lower limbs was estimated by a one-repetition maximum (1RM) test. Participants were divided into three groups: eutrophic (normal weight) (n=11), overweight (n=14), and obese (n=14). One-way ANOVA was used to compare the variables, followed by a Bonferroni post-hoc test for multiple comparisons. Pearson's correlation coefficient was used for relevant correlations and multiple linear regression to verify the influence of anthropometric variables, body composition and muscle strength of upper and lower limbs. RESULTS: Obese and overweight adolescents had absolute muscle strength values similar to those of the eutrophic adolescents, which were lower when corrected by BM (p<0.001). However, muscle strength related to FFM and localized FFM were similar between groups in both upper and lower limbs. Linear regression showed that BMI explained 59% of the variation in absolute muscle strength of the lower limbs (ß=0.59, p<0.05), FFM explained 84% of the variation in absolute muscle strength of the upper limbs (ß=0.84, p<0.01) and 68% of the lower limbs (ß=0.68; p<0.01), while localized FM was inversely associated in the lower limbs (ß=−0.53, p<0.05). CONCLUSION: Muscle strength of lower and upper limbs, when corrected by localized FFM, does not distinguish between overweight and normal weight adolescents, indicating that obesity does not have a negative effect on generation of muscle strength in obese boys. Level of Evidence III; Case-control study.

INTRODUÇÃO: A obesidade em adolescentes tem aumentado em todo o mundo, geralmente associada a hábitos alimentares inadequados e inatividade física. OBJETIVO: Comparar a força muscular absoluta e relativa com a massa corporal (MC), massa livre de gordura (MLG) e MLG localizada dos membros superiores e inferiores entre adolescentes obesos e não obesos. MÉTODOS: Em 39 adolescentes do sexo masculino (entre 13 e 17 anos) foram verificados MC, estatura e índice de massa corporal (IMC). A composição corporal foi medida por absorciometria de raios-x de dupla energia (DXA) e a força máxima de membros superiores e inferiores foi estimada por um teste de repetição máxima (1RM). Os participantes foram divididos em três grupos: eutrófico (n = 11), sobrepeso (n = 14) e obeso (n = 14). Utilizou-se o teste One-way ANOVA para comparar as variáveis, seguido de teste post hoc de Bonferroni para comparações múltiplas, para as correlações relevantes, usou-se o coeficiente de correlação de Pearson e a regressão linear múltipla foi usada para verificar a influência das variáveis antropométricas, composição corporal e a força muscular dos membros superiores e inferiores. RESULTADOS: Os adolescentes obesos e com sobrepeso tinham força muscular absoluta similar aos dos eutróficos, sendo menores quando corrigidas pela MC (p < 0,001). Porém, a força muscular relacionada com a MLG e a MLG localizada foi semelhante entre os grupos, tanto em membros superiores como inferiores. A regressão linear mostrou que o IMC explicou 59% da variação da força muscular absoluta dos membros inferiores (ß = 0,59, p < 0,05), a MLG explicou 84% da variação da força muscular absoluta dos membros superiores (ß = 0,84, p < 0,01) e 68% dos membros inferiores (ß = 0,68; p < 0,01), enquanto a massa gorda localizada foi inversamente associada nos membros inferiores (ß = −0,53; p < 0,05). CONCLUSÃO: A força muscular dos membros superiores e inferiores, quando corrigida pela MLG localizada, não diferencia adolescentes com sobrepeso e eutróficos, indicando que a obesidade não afeta negativamente a geração de força muscular em rapazes obesos. Nível de Evidência III; Estudo de caso-controle.

INTRODUCCIÓN: La obesidad en adolescentes ha aumentado en todo el mundo, generalmente asociada a malos hábitos alimenticios y falta de actividad física. OBJETIVO: Comparar fuerza muscular absoluta y relativa de la masa corporal (MC), MLG y MLG localizada en miembros inferiores y superiores entre adolescentes obesos y no obesos. MÉTODOS: Se verificó en 39 adolescentes hombres (entre 13 y 17 años) sus MC, estaturas e índices de masa corporal (IMC). La composición corporal fue mensurada por absorciometría de rayos-x de doble energía (DXA) y el test de repetición máxima para estimar la fuerza máxima de miembros superiores e inferiores, divididos en tres grupos: 11 eutróficos, 14 con sobrepeso y 14 obesos. Se usó ANOVA (one way) para comparación de variables, seguido de Post Hoc de Bonferroni para comparaciones múltiples, correlaciones por el coeficiente de correlación Pearson y Regresión Lineal Múltiple para la influencia de variables antropométricas, composición corporal y fuerza muscular de miembros inferiores y superiores. RESULTADOS: Obesos y con sobrepeso presentaron valores de fuerza muscular absoluta similares a los eutróficos, pero menor si se corrigen por MC (p<0,001). Sin embargo, la fuerza muscular relativa a MLG y MLG localizada fue semejante. En regresión lineal, el IMC explicó el 59% de variación de fuerza muscular absoluta en miembros inferiores (ß=0,59, p<0,05), MLG 84% de variación de fuerza muscular absoluta en miembros superiores (ß=0,84, p<0,01) y 68% en miembros inferiores (ß=0,68; p<0,01), mientras que la MG localizada fue inversamente asociada a los superiores (ß=−0,53; p<0,05). CONCLUSIÓN: La fuerza muscular de miembros superiores e inferiores, cuando es corregida por la MLG localizada, no se diferencia en adolescentes con sobrepeso y eutróficos, indicando que la obesidad no afecta negativamente la generación de fuerza muscular en jóvenes obesos. Nivel de Evidencia III; Estudio caso-control.

Quality of evidence of anti-obesity pharmacotherapy: an overview of systematic reviews

The safety and effectiveness of main anti-obesity drugs are controversial, and there is no consensus among regulatory agencies regarding anti-obesity drugs. We undertook an overview of systematic reviews (SR) of randomized controlled trials (RCT) to summarize the quality of evidence related to anti-obesity drugs. Data sources included Medline, Scopus, The Cochrane Library and PROSPERO. Twenty-one SR (564 RCT; average of 2,356 participants per review) satisfied the inclusion criteria. Ten SR presented a high level of heterogeneity, and only five SR included sensitivity analyses. The most important limitations reported by the SR were a high level of attrition, a small sample size, and a short follow-up. Eight different outcomes for efficacy were used, 15 different outcomes for biomarkers were used, and nine different outcomes for safety were used. Conclusions: In conclusion, the quality of SR pertaining to anti-obesity drugs is low, and these reviews have a high level of heterogeneity. Future SR should present more detailed population inclusion criteria, larger sample sizes, and focus variables reported in a predefined anti-obesity core outcome set.(AU)

Systematic review and meta-analysis of the efficacy and safety of amfepramone and mazindol as a monotherapy for the treatment of obese or overweight patients.

The aim of this study was to evaluate efficacy and safety of amfepramone, fenproporex and mazindol as a monotherapy for the treatment of obese or overweight patients. A systematic review of primary studies was conducted, followed by a direct meta-analysis (random effect) and mixed treatment comparison. Medline and other databases were searched. Heterogeneity was explored through I2 associated with a p-value. Of 739 identified publications, 25 were included in the meta-analysis. The global evaluation of Cochrane resulted in 19 studies with a high level of bias and six with unclear risk. Due to the lack of information in primary studies, direct meta-analyses were conducted only for amfepramone and mazindol. Compared to placebo, amfepramone resulted in higher weight loss in the short-term (<180 days; mean difference (MD) -1.281 kg; p<0.05; I2: 0.0%; p=0.379) and long-term (≥180 days; MD -6.518 kg; p<0.05; I2: 0.0%; p=0.719). Only studies with long-term follow up reported efficacy in terms of abdominal circumference and 5-10% weight reduction. These results corroborated the finding that the efficacy of amfepramone is greater than that of placebo. Treatment with mazindol showed greater short-term weight loss than that with placebo (MD -1.721 kg; p<0.05; I2: 0.9%; p=0.388). However, metabolic outcomes were poorly described, preventing a meta-analysis. A mixed treatment comparison corroborated the direct meta-analysis. Considering the high level of risk of bias and the absence of important published outcomes for anti-obesity therapy assessments, this study found that the evaluated drugs showed poor evidence of efficacy in the treatment of overweight and obese patients. Robust safety data were not identified to suggest changes in their regulatory status.

Diethylpropion and mazindol: An end to the discussion?

Antiobesity pharmacotherapy remains the main point of disagreement among both scientists and regulators. This is probably due to small sample sizes, high levels of heterogeneity, and low methodological quality. For many years, Brazil was one of the largest consumers of appetite suppressants worldwide, with evidence of irrational use of this drug class. Therefore, the country was the scene of a debate that divided the Brazilian Health Surveillance Agency (Anvisa - Agência Nacional de Vigilância Sanitária) and medical societies over the maintenance record of diethylpropion, mazindol and fenproporex. In this context, this commentary presents new arguments to contribute to the discussion, as well as recommendations for future studies.

Systematic review and meta-analysis of the efficacy and safety of amfepramone and mazindol as a monotherapy for the treatment of obese or overweight patients

The aim of this study was to evaluate efficacy and safety of amfepramone, fenproporex and mazindol as a monotherapy for the treatment of obese or overweight patients. A systematic review of primary studies was conducted, followed by a direct meta-analysis (random effect) and mixed treatment comparison. Medline and other databases were searched. Heterogeneity was explored through I2 associated with a p-value. Of 739 identified publications, 25 were included in the meta-analysis. The global evaluation of Cochrane resulted in 19 studies with a high level of bias and six with unclear risk. Due to the lack of information in primary studies, direct meta-analyses were conducted only for amfepramone and mazindol. Compared to placebo, amfepramone resulted in higher weight loss in the short-term (<180 days; mean difference (MD) -1.281 kg; p<0.05; I2: 0.0%; p=0.379) and long-term (≥180 days; MD -6.518 kg; p<0.05; I2: 0.0%; p=0.719). Only studies with long-term follow up reported efficacy in terms of abdominal circumference and 5-10% weight reduction. These results corroborated the finding that the efficacy of amfepramone is greater than that of placebo. Treatment with mazindol showed greater short-term weight loss than that with placebo (MD -1.721 kg; p<0.05; I2: 0.9%; p=0.388). However, metabolic outcomes were poorly described, preventing a meta-analysis. A mixed treatment comparison corroborated the direct meta-analysis. Considering the high level of risk of bias and the absence of important published outcomes for anti-obesity therapy assessments, this study found that the evaluated drugs showed poor evidence of efficacy in the treatment of overweight and obese patients. Robust safety data were not identified to suggest changes in their regulatory status.

ADRB2 Gln27Glu polymorphism influenced changes in leptin but not body composition or metabolic and other inflammatory parameters after twelve weeks of combined training in overweight adolescents

ABSTRACT Aim To compare the anthropometric, metabolic, and inflammatory parameters of overweight adolescents after 12-weeks of resistance and aerobic training (CT), taking into account the Gln27Glu polymorphism of the β2 adrenergic receptor (ADRB2) gene. Methods Forty-seven adolescents (15.05±1.07y) were assigned to one of four groups, according to the presence or absence of the Glu27 allele: CT (CarrierT n=11; NoncarrierT n=11) or control (CarrierC n=13; NoncarrierC n=12). Body composition, abdominal fat, maturation, fitness, metabolic and lipid profile, inflammatory markers were assessed. The CT consisted of six resistance exercises, followed by 30 min of walking/running at 50-80% VO2max, totaling 60 min/session, three times a week. A mixed-model factorial ANOVA was used to compare variables at baseline and after 12-weeks. Results TC was effective in reducing total fat mass (NoncarrierT ES=.45, CarrierT ES=.27) and subcutaneous abdominal fat (NoncarrierT ES=.48, CarrierT ES=.46) and increasing lean mass (NoncarrierT ES=.58, CarrierT ES=.60) and fitness. CarrierT group showed a reduction in leptin (ES=.49). Conclusion The responses of body composition and physical fitness to TC were not influenced by the presence of the Gln27Glu polymorphism. However, only the Glu27 allele carriers showed reductions in leptin after 12-weeks. Besides, a lack of intervention caused obesogenic effects, especially in Glu27carriers.

Postpartum Reclassification of Glycemic Status in Women with Gestational Diabetes Mellitus and Associated Risk Factors.

UNLABELLED: Objective The aims of the study were to evaluate, after pregnancy, the glycemic status of women with history of gestational diabetes mellitus (GDM) and to identify clinical variables associated with the development of type 2 diabetes mellitus (T2DM), impaired fasting glucose (IFG), and impaired glucose tolerance (IGT). Methods Retrospective cohort of 279 women with GDM who were reevaluated with an oral glucose tolerance test (OGTT) after pregnancy. Characteristics of the index pregnancy were analyzed as risk factors for the future development of prediabetes (IFG or IGT), and T2DM. RESULTS: T2DM was diagnosed in 34 (12.2%) patients, IFG in 58 (20.8%), and IGT in 35 (12.5%). Women with postpartum T2DM showed more frequently a family history of T2DM, higher pre-pregnancy body mass index (BMI), lower gestational age, higher fasting and 2-hour plasma glucose levels on the OGTT at the diagnosis of GDM, higher levels of hemoglobin A1c, and a more frequent insulin requirement during pregnancy. Paternal history of T2DM (odds ratio [OR] = 5.67; 95% confidence interval [95%CI] = 1.64-19.59; p = 0.006), first trimester fasting glucose value (OR = 1.07; 95%CI = 1.03-1.11; p = 0.001), and insulin treatment during pregnancy (OR = 15.92; 95%CI = 5.54-45.71; p < 0.001) were significant independent risk factors for the development of T2DM. Conclusion A high rate of abnormal glucose tolerance was found in women with previous GDM. Family history of T2DM, higher pre-pregnancy BMI, early onset of GDM, higher glucose levels, and insulin requirement during pregnancy were important risk factors for the early identification of women at high risk of developing T2DM. These findings may be useful for developing preventive strategies.

Postpartum Reclassification of Glycemic Status in Women with Gestational Diabetes Mellitus and Associated Risk Factors / Reclassificação pós-parto do estado glicêmico em mulheres com diabetes mellitus gestacional e fatores de risco associados

Abstract Objective The aims of the study were to evaluate, after pregnancy, the glycemic status of women with history of gestational diabetes mellitus (GDM) and to identify clinical variables associated with the development of type 2 diabetes mellitus (T2DM), impaired fasting glucose (IFG), and impaired glucose tolerance (IGT). Methods Retrospective cohort of 279 women with GDM who were reevaluated with an oral glucose tolerance test (OGTT) after pregnancy. Characteristics of the index pregnancy were analyzed as risk factors for the future development of prediabetes (IFG or IGT), and T2DM. Results: T2DM was diagnosed in 34 (12.2%) patients, IFG in 58 (20.8%), and IGT in 35 (12.5%). Women with postpartum T2DM showed more frequently a family history of T2DM, higher pre-pregnancy body mass index (BMI), lower gestational age, higher fasting and 2-hour plasma glucose levels on the OGTT at the diagnosis of GDM, higher levels of hemoglobin A1c, and a more frequent insulin requirement during pregnancy. Paternal history of T2DM (odds ratio [OR] =5.67; 95% confidence interval [95%CI] =1.64-19.59; p =0.006), first trimester fasting glucose value (OR =1.07; 95%CI =1.03-1.11; p =0.001), and insulin treatment during pregnancy (OR =15.92; 95%CI =5.54-45.71; p < 0.001) were significant independent risk factors for the development of T2DM. Conclusion A high rate of abnormal glucose tolerance was found in women with previous GDM. Family history of T2DM, higher pre-pregnancy BMI, early onset of GDM, higher glucose levels, and insulin requirement during pregnancy were important risk factors for the early identification of women at high risk of developing T2DM. These findings may be useful for developing preventive strategies.

Objetivo Os objetivos do estudo foram avaliar o estado glicêmico de mulheres com história de diabetes mellitus gestacional (DMG) após o parto e identificar fatores associados ao desenvolvimento de diabetes mellitus tipo 2 (DM2), glicemia de jejum alterada (GJA) e tolerância diminuída à glicose (TDG). Métodos Coorte retrospectiva de 279 mulheres com DMG reavaliadas com um teste oral de tolerância à glicose (TOTG) após a gestação. Foram analisados fatores prognósticos da gestação índice e fatores de risco para o futuro desenvolvimento de pré-diabetes (GJA ou TDG) e DM2. Resultados: Diagnosticou-se DM2 em 34 pacientes (12,2%), GJA em 58 (20,8%) e TDG em 35 (12,5%). Mulheres que evoluíram para DM2 apresentaram maior frequência de história familiar de DM2, índice de massa corporal (IMC) pré-gestacional mais elevado, menor idade gestacional, níveis superiores de glicemia de jejum e 2 horas após glicose no TOTG ao diagnóstico do DMG, hemoglobina glicada mais elevada, e uso mais frequente de insulina na gestação. História paterna de DM2 (odds ratio [OR] = 5,67; intervalo de confiança de 95% [IC95%] = 1,64-19,59; p = 0,006), glicemia de jejum do primeiro trimestre (OR = 1,07; IC95% = 1,03-1,11; p = 0,001) e o uso de insulina na gestação (OR = 15,92; IC95% = 5,54-45,71; p < 0,001) foram fatores de risco independentes para o desenvolvimento de DM2. Conclusão Houve elevada incidência de alterações no metabolismo da glicose em mulheres com DMG prévio. História familiar de DM2, IMC pré-gestacional elevado, DMG diagnosticado mais precocemente na gestação, com glicemias mais elevadas e necessidade de insulina, foram importantes fatores de risco associados à identificação precoce de mulheres com alto risco de desenvolvimento de DM2. Este conhecimento pode ser útil para o desenvolvimento de estratégias de prevenção.

IMPACT OF DEFICIENT NUTRITION IN BONE MASS AFTER BARIATRIC SURGERY.

BACKGROUND: Essential nutrients are considered for the prevention of the bone loss that occurs after bariatric surgery. AIM: Evaluate nutrients involved in bone metabolism, and relate to serum concentrations of calcium, vitamin D, and parathyroid hormone, and the use of supplements and sun exposure on the bone mass of patients who had undergone gastric bypass surgery. METHODS: An observational study, with patients who had undergone the surgery 12 or more months previously, operated group (OG), compared to a control group (CG). RESULTS: Were included 56 in OG and 27 in the CG. The mean age was 36.4±8.5 years. The individuals in the OG, compared to CG, consumed inadequate amounts of protein and daily calcium. The OG had a higher prevalence of low sun exposure, lower levels of 25OH Vitamin D (21.3±10.9 vs. 32.1±11.8 ng/dl), and increased serum levels of parathyroid hormone (68.1±32.9 vs. 39.9±11.9 pg/ml, p<0.001). Secondary hyperparathyroidism was present only in the OG (41.7%). The mean lumbar spine bone mineral density was lower in the OG. Four individuals from the OG had low bone mineral density for chronological age, and no one from the CG. CONCLUSION: The dietary components that affect bone mass in patients undergoing bariatric surgery were inadequate. The supplementation was insufficient and the sun exposure was low. These changes were accompanied by secondary hyperparathyroidism and a high prevalence of low bone mass in lumbar spine in these subjects.

Effects of 12 weeks of combined training without caloric restriction on inflammatory markers in overweight girls.

The objective of the present study was to investigate the effects of combined training without caloric restriction on inflammatory markers in overweight girls. Thirty-three girls (13-17 years) were assigned into overweight training (n = 17) or overweight control (n = 16) groups. Additionally, a normal-weight group (n = 15) was used as control for the baseline values. The combined training programme consisted of six resistance exercises (three sets of 6-10 repetitions at 60-70% 1 RM) followed by 30 min of aerobic exercise (walking/running) at 50-80% VO2peak, performed in the same 60 min session, 3 days/weeks, for 12 weeks. Body composition, dietary intake, aerobic fitness (VO2peak), muscular strength (1 RM), glycaemia, insulinemia, lipid profile and inflammatory markers (C-reactive protein, interleukin-6, tumour necrosis factor-alpha, interleukin-10, leptin, resistin and adiponectin) were measured before and after intervention. There was a significant decrease in body fat (P < 0.01) and increase in fat-free mass (P < 0.01), VO2peak (P < 0.01), 1 RM for leg press (P < 0.01) and bench press (P < 0.01) in the overweight training group. Concomitantly, this group presented significant decreases in serum concentrations of C-reactive protein (P < 0.05) and leptin (P < 0.05), as well as in insulin resistance (P < 0.05) after the experimental period. In conclusion, 12 weeks of combined training without caloric restriction reduced inflammatory markers associated with obesity in overweight girls.

Association between adiposity indicators, metabolic parameters and inflammatory markers in a sample of female adolescents.

OBJECTIVE: The aim of this study was to investigate the association between total and abdominal adiposity with metabolic parameters and inflammatory markers, in female adolescents. SUBJECTS AND METHODS: The sample consisted of 53 adolescents aged 13 to 17 years from a public school in Curitiba, Brazil. The adiposity indicators studied were body mass index (BMI), waist circumference (WC), trunk fat mass (TKFM), total fat mass (TFM) and body fat percentage (BF%) measured by dual-energy X-ray absorptiometry. The metabolic and inflammatory parameters studied were systolic blood pressure (SBP), diastolic blood pressure (DBP), glucose, insulin, homeostasis model assessment index for insulin resistance (HOMA-IR), lipids, C-reactive protein (CRP), interleukin-6 (IL-6), tumor necrosis factor alpha (TNF-α), leptin, adiponectin and resistin. RESULTS: Eighty percent of WC variation, 87% of TKFM and TFM, and 73% of BF% were predicted by BMI variation. There was a significant positive correlation between all indicators of adiposity with SBP, DBP, insulin, HOMA-IR, CRP and leptin. Triglycerides were positively correlated with BMI and WC, and adiponectin correlated negatively with BMI. TNF-α, IL-6, glucose, total cholesterol, and high- and low-density lipoprotein cholesterol did not correlate to the studied variables. CONCLUSION: BMI showed a significant association with most of the parameters studied, and WC was slightly better than BMI to predict insulin resistance in this specific population.