Abstract Title:

Resveratrol upregulated SIRT1, FOXO1, and adiponectin and downregulated PPARγ1-3 mRNA expression in human visceral adipocytes.

Abstract Source:

Obes Surg. 2011 Mar;21(3):356-61. PMID: 20872255

Abstract Author(s):

Cíntia dos Santos Costa, Francieli Rohden, Thais Ortiz Hammes, Rogério Margis, Josiane Woutheres Bortolotto, Alexandre Vontobel Padoin, Cláudio Cora Mottin, Regina Maria Guaragna

Article Affiliation:

Departamento de Bioquímica, ICBS, UFRGS, Rua Ramiro Barcelos 2600 Anexo, 90035-003, Porto Alegre, RS, Brazil.


BACKGROUND: The SIRT1 enzyme is involved in adipose tissue (AT) lipolysis. FOXO1 is a protein that plays a significant role in regulating metabolism. Adiponectin is an adipokine, secreted by the AT, which has been considered to have an antiobesity function. PPARγ is one of the key actors in adipocytes differentiation. This study was undertaken to investigate whether resveratrol can regulate SIRT1, FOXO1, adiponectin, PPARγ1-3, and PPARβ/δ in human AT.

METHODS: The effects of resveratrol were analyzed in freshly isolated adipocytes prepared from visceral fat tissue samples obtained during bariatric surgery. Genes messenger ribonucleic acid (mRNA) levels were determined by qRT-PCR.

RESULTS: Ours results show that resveratrol modulates the studied genes, increasing SIRT1 (p = 0.021), FOXO1 (p = 0.001), and adiponectin (p = 0.025) mRNA expression and decreasing PPARγ1-3 (p = 0.003) mRNA in human visceral adipocytes.

CONCLUSIONS: Resveratrol, in vitro and at low concentration, modulates genes that are related to lipid metabolism, possibly preventing metabolic disease in human visceral adipose tissue (VAT).

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