Adiposidad visceral y su asociación con lípidos séricos e insulinemis en adolescentes obesas / Visceral adiposity and its association with serum lipids in female obese teenagers
Rev. méd. Chile
; 135(3): 294-300, mar. 2007. graf, tab
Article
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| ID: lil-456614
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BR1.1
ABSTRACT
Background:
Increased visceral or abdominal adipose tissue in children and adults is strongly associated with metabolic and a variety of chronic diseases.Aim:
To study the association between visceral or external body measurements of adiposity with blood lipids, glucose and insulin levels, in obese female adolescents. Material andmethods:
In a cross-sectional study, 47 obese female adolescents (body mass index (BMI) >95th percentile) aged 10 to 15 years, were analyzed. Weight, height, BMI, Tanner pubertal stages, skinfold thickness, waist circumference, waist-to-hip ratio, fasting and 120 min post prandial blood glucose, serum insulin, and lipid profile were studied. Visceral fat was assessed by computed tomography at the L4-L5 level, measuring the fat area or the length of a straight drawn line between the spine and the internal border of the rectus abdominus muscle.Results:
No association between lipid profile and BMI or external body measurements (skinfold thickness, waist circumference, waist-to-hip ratio) was observed. Total serum cholesterol >170 mg/dL was positively associated with the straight line over 63 mm (a cut-off obtained by ROC analysis (RR 2.64; 1.15-6.08). This association was statistically significant in girls in Tanner I + II (n =21; Fisher, p <0.023), but not with Tanner III + IV (n =26) stages. Increased cholesterol (>170 mg/dL) was also positively associated with a serum insulin >17 uU/mL in the Tanner I + II group (Fisher p<0.05), but not with the homeostasis model assessment of insulin resistance (HOMA).Conclusions:
No external body measurement of adiposity was associated to increased serum cholesterol in these obese female adolescents. Increased total cholesterol (>170 mg/dL) was associated with visceral fat (evaluated through the straight line spina-rectus abdominus muscle), and also with a serum insulin >17 uU/ml in those teenagers with Tanner I or II pubertal stages.
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LILACS
Asunto principal:
Glucemia
/
Grasa Intraabdominal
/
Adiposidad
/
Hipercolesterolemia
/
Lípidos
/
Obesidad
Tipo de estudio:
Etiology_studies
/
Observational_studies
/
Prevalence_studies
/
Prognostic_studies
/
Risk_factors_studies
Límite:
Adolescent
/
Child
/
Female
/
Humans
Idioma:
Es
Revista:
Rev. méd. Chile
Asunto de la revista:
MEDICINA
Año:
2007
Tipo del documento:
Article