UCP2 and PLIN1 Expression Affects the Resting Metabolic Rate and Weight Loss on Obese Patients

Autor(es)

Parenti de Oliveira, Bruno Affonso ; de Souza Pinhel, Marcela Augusta ; Nicoletti, Carolina Ferreira ; de Oliveira, Cristiana Cortes ; Gomes Quinhoneiro, Driele Cristina ; Noronha, Natalia Yumi ; Fassini, Priscila Giacomo ; da Silva Junior, Wilson Araujo ; Salgado Junior, Wilson ; Nonino, Carla Barbosa

• Tipo de documento: Artigo Científico
• Fonte: OBESITY SURGERY; v. 27, n. 2, p. 343-348, FEB 2017.
• Citações Web of Science: 5

Resumo

Analysis of the expression of genes related to the energy metabolism can elucidate the understanding of physiological and genetic factors that contribute to obesity. This study aimed to evaluate the expression of genes and its influence on resting metabolic rate and weight loss in obese patients before and after bariatric surgery. This study was conducted on 23 women, who were divided into two groups: bariatric surgery (preoperative and 6 months after surgery) and control. Abdominal subcutaneous adipose tissue samples were collected to analyze the gene expression, and the resting metabolic rate (RMR) was measured by indirect calorimetry. Significant differences were observed in weight reduction (22 %, p = 0.01), BMI (22.5 %, p = 0.01), and RMR values (10.5 %, p = 0.01) after the bariatric surgery, while the weight-adjusted RMR increased (15.8 %, p = 0.01). Increased UCP2 expression after 6 months of Roux-en-Y gastric bypass (RYGB) as compared to preoperative period (0.764 to 1.268, p = 0.01) was observed. Analysis with weight-adjusted RMR as dependent variable revealed that UCP2 (r (2) = 0.517, p = 0.01) and PLIN1 (r (2) = 0.420, p = 0.04) expression determine the RMR values in preoperative period. Moreover, UCP2 and PLIN1 expression in preoperative period influenced the percentage of weight loss, even when adjusted for age and BMI. We have demonstrated that after 6 months of bariatric surgery, there is significant increase in the UCP2 expression. Additionally, the expression of UCP2 and PLIN1 genes influences the resting metabolic rate in obese individuals and could predict the weight loss after bariatric surgery. (AU)

• Processo FAPESP: 13/06563-7 - Análise da expressão de genes relacionados ao gasto energético de indivíduos obesos grau III antes e após cirurgia bariátrica
• Beneficiário: Bruno Affonso Parenti de Oliveira
• Modalidade de apoio: Bolsas no Brasil - Mestrado
• Processo FAPESP: 13/08916-4 - Análise da expressão de genes relacionados ao gasto energético e metabolismo de lipídios de indivíduos com obesidade grau III antes e após intervenções para perda de peso
• Beneficiário: Carla Barbosa Nonino
• Modalidade de apoio: Auxílio à Pesquisa - Regular