Regulação endócrina de curto prazo de hormônios relacionados à fome em mulheres obesas que apresentam episódios de compulsão alimentar

• Autor(a) principal: Brandão, Paula Paraguassú
• Data de Publicação: 2010
• Tipo de documento: Tese
• Idioma: por
• Título da fonte: Biblioteca Digital de Teses e Dissertações da UERJ
• Texto Completo: http://www.bdtd.uerj.br/handle/1/12593
• topic: Binge eating episodes; Obesity; Hunger/satiety related hormones; Ghrelin; Episódios de compulsão alimentar; Obesidade; Hormônios da fome/saciedade; Grelina; CNPQ::CIENCIAS DA SAUDE::NUTRICAO

Binge eating is associated to several diseases, including obesity. In order to study the hormonal control of hunger and satiety that is commonly involved in binge-eating process; we evaluated the serum concentration of these hormones in adult women. The experimental study was composed of 3 groups, n= 23: Lean (GE, n = 8), Obese without binge (GO, n = 7) and obese with binge (BEE, n = 8). All women who participated in the study attended the health services of the Polyclinic Piquet Carneiro. Serum hormones were assayed: total ghrelin, glucagon, adiponectin, Amylin, c-Peptide, glucagon like peptide (GLP-1), insulin and Leptin in fasting, 15 and 60 minutes after food intake. Meals were controlled in energy, 55% carbohydrates, 15% protein, 30% lipids. Data were analyzed as average values per group in SAS software, considering p <0.05. Results: Women`s age ranged from 32 to 50 years. The adiponectin concentration, which is inversely proportional to adiposity, was significantly lower in BEE group than the other groups (p=0.01). Leptin of the GO group presented higher concentration than the others (p<0.0001). Ghrelin concentration was significantly lower in BEE group than the other groups (p=0.02). We found a significantly higher concentration of insulin in GO group in comparison to the others (p = 0.04). Amylin concentration was significantly higher in GO group in comparison to the other groups (p=0.01). GLP-1 concentration of GO group was higher on average, but not statistically significant between groups (p=0.25). Cpeptide concentration found in GO group was higher than the others (p=0.003). Despite glucagon concentration in the BEE group was greater than the other groups, these values were not statistically different (p=0.13). Our findings shown that BEE group have different hormonal profile than GO and GE. The lowest concentration of ghrelin found in BEE group and the highest concentration of insulin, C-peptide and amylin found in both obese group with and without binge eating may be related to increased food intake and energy imbalance.