Body trunk fat and insulin resistance in post-pubertal obese adolescents

Santos, Luana Caroline dos; Cintra, Isa de Pádua; Fisberg, Mauro; Martini, Lígia Araújo

doi:10.1590/s1516-31802008000200004

Cited by 20 publications

(20 citation statements)

References 23 publications

(43 reference statements)

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“…A study conducted in São Paulo showed high prevalence of insulin and impaired glucose tolerance relating to trunk and body fat among obese nondiabetic adolescents. 43 The present study also found that the overweight/obese schoolchildren presented higher altered systolic and diastolic blood pressure. Consequently, in the overweight/obese group, 16.4% of the boys and 12.3% of the girls presented altered systolic blood pressure and 14.8% of the boys and 14.8% of the girls showed altered diastolic blood pressure.…”

Section: Discussionsupporting

confidence: 77%

Prevalence of obesity and cardiovascular risk among children and adolescents in the municipality of Santa Cruz do Sul, Rio Grande do Sul

et al. 2013

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CONTEXT AND OBJECTIVE: Studies have demonstrated that metabolic complications from child obesity, although silent, increase the risk of development of cardiovascular diseases in adulthood. The present paper sought to describe the prevalence of overweight/obesity and analyze the possible relationship between obesity and other cardiovascular risk factors among children and adolescents. DESIGN AND SETTING: Cross-sectional study, conducted in a university. METHODS:The study included 564 children and adolescents, aged 8 to 17 years. Body mass index and waist circumference were used to evaluate obesity. Other cardiovascular risk factors were evaluated, like systolic and diastolic blood pressure, glycemia, triglycerides and total cholesterol. Descriptive analysis was used for sample characterization, the chi-square test for categorical variables and Pearson's linear correlation for evaluating the relationship between obesity indicators and other cardiovascular risk factors. RESULTS: High prevalence of overweight/obesity was found among the schoolchildren (25.3% among the boys and 25.6% among the girls), along with abdominal obesity (19.0%). The overweight/obese schoolchildren presented higher percentages for the pressure and biochemical indicators, compared with underweight and normal-weight schoolchildren. Body mass index and waist circumference showed a weak correlation with the variables of age and systolic and diastolic blood pressure (P < 0.001), but there was no correlation between these obesity indices and biochemical variables. CONCLUSION: The high prevalence of overweight/obesity and its relationship with other cardiovascular risk factors demonstrate that it is necessary to develop intervention and prevention strategies from childhood onwards, in order to avoid development of chronic-degenerative diseases in adulthood.RESUMO CONTEXTO E OBJETIVO: Estudos demonstram que as complicações metabólicas da obesidade infantil, mesmo silenciosas, aumentam o risco de desenvolvimento de doenças cardiovasculares na fase adulta. O presente estudo buscou descrever a prevalência de sobrepeso/obesidade, analisando possível relação entre obesidade e demais fatores de risco cardiovascular em crianças e adolescentes. TIPO DE ESTUDO E LOCAL: Estudo transversal, realizado em universidade. MÉTODOS: Foram incluídas 564 crianças e adolescentes de 8 a 17 anos. Foi utilizado o índice de massa corporal e a circunferência da cintura para avaliar obesidade. Outros fatores de risco cardiovasculares foram avaliados, como pressão arterial sistólica e diastólica, glicemia, triglicerídeos e colesterol total. Foi utilizada a análise descritiva para caracterização da amostra, teste de qui-quadrado para variáveis categóricas e correlação linear de Pearson para avaliar a relação entre os indicadores de obesidade e demais fatores de risco cardiovasculares. RESULTADOS: Foi encontrada alta prevalência de sobrepeso/obesidade entre os escolares (25,3% entre os meninos e 25,6% entre as meninas), assim como obesidade abdominal (19,0%). Escolares c...

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Section: Discussionsupporting

confidence: 77%

Prevalence of obesity and cardiovascular risk among children and adolescents in the municipality of Santa Cruz do Sul, Rio Grande do Sul

et al. 2013

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“…Studies on the indicators of overweight and obesity in childhood and adolescence have brought about many investigations on the prognosis of health risk (16)(17)(18)(19)(20)(21)(22)(23)(24)(25). Some authors have shown preference for the definition of cut-offs based on statistical criteria of mortality or those that point to continuing overweight and obesity in childhood, adolescence and adulthood (26)(27).…”

Section: Discussionmentioning

confidence: 99%

Body mass index percentiles in adolescents of the city of São Paulo, Brazil, and their comparison with international parameters

Passos

Cintra

Branco

et al. 2010

Arq Bras Endocrinol Metab

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OBJECTIVE: To describe the percentile distribution of body mass index (BMI) in school adolescents, by gender and age, comparing them with international parameters. SUBJECTS AND METHODS: The study included 8,020 adolescents aged 10-15 years from 43 schools in the city of São Paulo, southeastern Brazil. BMI values of the study sample were distributed in percentiles and compared to international parameters (CDC, Must and cols. and Cole and cols.). RESULTS: Both male and female adolescents aged 10 to 14 years showed BMI cut-offs over the international parameters, especially in the P50-P85 percentile range. At the age of 15, the observed values were very similar to reference data; however, BMI values in the 95th percentile were much higher than international parameters. CONCLUSIONS: The study results show how important it is to use adequate BMI values for Brazilian adolescents aged 10-15 since international parameters may not reflect the actual nutritional status of this group.

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“…U ovoj studiji je pokazano i da kod gojaznih osoba postoje povišene vrednosti insulina i HOMA indeksa insulinske rezistencije, što ide u prilog prethodno objašnjenom (14). Slične rezultate pokazale su i još neke studije (15,16). Sen i sar.…”

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“…su pokazali veću prevalenciju metaboličkog sindroma i insulinske rezistencije kod gojaznih adolescenata (15), dok su Santos i sar. u svojoj studiji dobili povišene vrednosti glukoze i HOMA indeksa u istoj populaciji i time ukazali na povezanost između insulinske rezistencije i količine telesne masnoće (16). Korelacija između povećanja visceralne masnoće i vrednosti glukoze može se objasniti pojavom insulinske rezistencije, zbog čega se pojačano luči insulin iz pankreasa, kao kompenzatorni mehanizam, dok se u jednom trenutku, kada to više nije dovoljno, ne javi i hiperglikemija.…”

Section: Rezultatiunclassified

“…Potvrdili smo i postojanje povezanosti između količine visceralnog abdominalnog masnog tkiva u gojaznih osoba i svih pokazatelja glikolipidnog statusa, izuzev ukupnog holesterola, što se slaže sa rezultatima u prethodno navedenim radovima (16). Našli smo, među-tim, da indeks dVAMT/dSCAMT merenih ultrazvukom u visini struka najviše korelira sa biohemijskim parametrima glikolipidnog statusa, osim totalnog holesterola, te bi ovaj indeks mogao da predstavlja najbolji surogat marker za procenu rizika od zdravstvenih komplikacija kod gojaznih osoba.…”

Section: Rezultatiunclassified

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Testing of correlation between amounts of visceral and subcutaneous abdominal adipose tissue in obese people measured by ultrasound and biochemical indicators of glycolipid status

L¹,

Bjegovic²,

Vasin³

et al. 2017

Med podmladak

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Introduction: Obesity is a growing health problem in economically developed countries. Abdominal fat is distributed in two large compartments: visceral fat is localized in the abdominal cavity (around the abdominal organs) and subcutaneous fat (between the skin and muscle layers of the abdominal wall). Ultrasonography is the most appropriate imaging method for estimating the amount of visceral and subcutaneous abdominal fat in obese patients. Aim: The aim is to assess the correlation between the amount of visceral and subcutaneous abdominal adipose tissue, estimated by ultrasound in obese individuals, and biochemical indicators of their glycolipid status. Material and Methods: Retrospective study included 183 adult obese patients (131 women and 52 men, mean age 42.6 ± 12.2, mean weight 123.4 ± 26.7 kg, mean BMI 43.5 ± 7.6kg/m 2 ), in whom diameters of visceral (dVAFT) and subcutaneous abdominal fat (dSCAFT) were measured by ultrasonography. Following anthropometric parameters, height, weight, waist circumference (WC) and hip cimrcumference (HC) were also measured. Also, biochemical analysis of the concentration of glucose, insulin, HbA1c, triglycerides and cholesterol (parameters of the glycolipid status) was done. Correlation among these parameters was tested using Pearson's test of linear correlation (r). Results: Positive correlation was found between the dVAFT and all analyzed biochemical parameters of the glycolipid status (p < 0.001). The exceptions were total cholesterol (p = 0.158), negative correlation between the dSCAFT and concentrations of serum glucose, HbA1c and triglycerides (p < 0.01), dVAFT/dSCAFT index most strongly positively correlated with the glucose concentration (r = 0.534), HbA1c (r = 0.456) and triglyceride levels (r = 0.443). WC and WC/HC index significantly correlated with the concentration of all biochemical parameters of glycolipid status, except total cholesterol, but less strongly than dVAFT and dVAFT/ dSCAFT index. Conclusion: Visceral and subcutaneous abdominal fat diameters were measured by ultrasound, and especially dVAFT/dSCAFT index, express stronger correlation with the biochemical parameters of glycolipid status, than the anthropometric parameters, in adult obese people.

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Body trunk fat and insulin resistance in post-pubertal obese adolescents

Abstract: Body trunk fat was significantly associated with insulin resistance, demonstrating the clinical importance of abdominal obesity during adolescence.

Cited by 20 publications

References 23 publications

Prevalence of obesity and cardiovascular risk among children and adolescents in the municipality of Santa Cruz do Sul, Rio Grande do Sul

Prevalence of obesity and cardiovascular risk among children and adolescents in the municipality of Santa Cruz do Sul, Rio Grande do Sul

Body mass index percentiles in adolescents of the city of São Paulo, Brazil, and their comparison with international parameters

Testing of correlation between amounts of visceral and subcutaneous abdominal adipose tissue in obese people measured by ultrasound and biochemical indicators of glycolipid status

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