Determinantes comportamentais e clínico-bioquímicos patológicos da concentração da proteína ligadora de lipopolissacarídeo no plasma de mulheres ingressantes em um programa para mudança do estilo de vida
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2018-02-23
Autores
Nunes, Caroline das Neves Mendes
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Universidade Estadual Paulista (Unesp)
Resumo
O aumento da permeabilidade intestinal promove o influxo de toxinas bacterianas do lúmen intestinal para o interior do hospedeiro, desencadeando em resposta inflamatória de baixo grau, semelhante à observada na expansão do tecido adiposo e na etiologia das doenças crônicas. Foi realizado estudo transversal para identificar os determinantes das concentrações plasmáticas de proteína ligadora de lipopolissacarídeo (LBP) em mulheres adultas ingressantes em programa para mudança do estilo de vida. Foram avaliadas 74 mulheres com idade entre 35 a 67 anos, as quais foram submetidas à avaliação sociodemográfica e clínica, antropométrica, de composição corporal e consumo alimentar, coleta sanguínea e bioquímica padrão. Todas as análises foram efetuadas pelo programa estatístico SPSS versão 19.0, e o nível de significância adotado foi de 5%. Observou-se que as concentrações da LBP foram significativamente maiores em mulheres com excesso de peso e que este biomarcador apresentou correlações moderadas com a circunferência abdominal, a pressão arterial e com o índice de gordura hepática. Similarmente, notou-se que a ingestão de frutose e de gordura poli-insaturada, a pressão arterial diastólica, a transaminase glutâmico-pirúvica e o percentual de gordura corporal total, influenciaram os níveis plasmáticos da LBP de maneira independente das demais variáveis. Desta forma, o presente estudo demonstra que a LBP está relacionada a dois componentes da síndrome metabólica e ao acúmulo hepático de gordura em mulheres adultas. Elevações plasmáticas deste biomarcador podem refletir o consumo de alimentos industrializados, o excesso de peso e as alterações metabólicas que são provocadas ou agravadas pela permeabilidade intestinal aumentada.
Increased intestinal permeability promotes the influx of bacterial toxins from the intestinal lumen into the host, triggering low grade inflammatory response similar to that observed in the expansion of adipose tissue and in the etiology of chronic diseases. A cross-sectional study was conducted in adult women to identify the determinants of plasma lipopolysaccharide binding protein (LBP) concentrations in adult women entering a lifestyle modification program. A total of 74 women aged 35-67 years were assessed, which were submitted to sociodemographic and clinical, anthropometric, body composition and food consumption evaluations, blood collection and standard biochemistry. All analyzes were performed by the SPSS software version 19.0 and the significance level adopted was 5%. It was observed that LBP concentrations were significantly higher in overweight women and this biomarker showed moderate correlations with waist circumference, blood pressure and liver fat index. Similarly, the ingestion of fructose and polyunsaturated fat, diastolic blood pressure, glutamic-pyruvic transaminase and total body fat percentage influenced plasma LBP levels independently of the other variables. Thus, the present study demonstrates that LBP is related to two components of metabolic syndrome and to the hepatic accumulation of fat in adult women. Plasma elevations of this biomarker may reflect consumption of processed foods, overweight, and metabolic changes that are caused by increased intestinal permeability.
Increased intestinal permeability promotes the influx of bacterial toxins from the intestinal lumen into the host, triggering low grade inflammatory response similar to that observed in the expansion of adipose tissue and in the etiology of chronic diseases. A cross-sectional study was conducted in adult women to identify the determinants of plasma lipopolysaccharide binding protein (LBP) concentrations in adult women entering a lifestyle modification program. A total of 74 women aged 35-67 years were assessed, which were submitted to sociodemographic and clinical, anthropometric, body composition and food consumption evaluations, blood collection and standard biochemistry. All analyzes were performed by the SPSS software version 19.0 and the significance level adopted was 5%. It was observed that LBP concentrations were significantly higher in overweight women and this biomarker showed moderate correlations with waist circumference, blood pressure and liver fat index. Similarly, the ingestion of fructose and polyunsaturated fat, diastolic blood pressure, glutamic-pyruvic transaminase and total body fat percentage influenced plasma LBP levels independently of the other variables. Thus, the present study demonstrates that LBP is related to two components of metabolic syndrome and to the hepatic accumulation of fat in adult women. Plasma elevations of this biomarker may reflect consumption of processed foods, overweight, and metabolic changes that are caused by increased intestinal permeability.
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doença hepática gordurosa não alcoólica, proteína ligadora de lipopolissacarídeo, síndrome metabólica, consumo alimentar, non-alcoholic fatty liver disease, food consumption, lipopolysaccharide binding protein, metabolic syndrome