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Association of increased Visfatin/PBEF/NAMPT circulating concentrations and gene expression levels in peripheral blood cells with lipid metabolism and fatty liver in human morbid obesity
Autor(es) : Catalan, V. (Victoria)
Gomez-Ambrosi, J. (Javier)
Rodriguez, A. (Amaia)
Ramirez, B. (Beatriz)
Silva, C. (Camilo)
Rotellar, F. (Fernando)
Cienfuegos, J.A. (Javier A.)
Salvador, J. (Javier)
Frühbeck, G. (Gema)
Palabras clave : Gene Expression Regulation, Enzymologic
Intra-Abdominal Fat/metabolism
Fecha incorporación: 2011
Editorial : Elsevier
Versión del editor: http://ac.els-cdn.com/S0939475309002348/1-s2.0-S0939475309002348-main.pdf?_tid=0ea3723bb599b7829c9710f48fad43ff&acdnat=1342088630_2d45eb97198709fdc8a3fad3531dbcd1
ISSN: 0939-4753
Cita: Catalán V, Gómez-Ambrosi J, Rodríguez A, Ramírez B, Silva C, Rotellar F, Cienfuegos JA, Salvador J, Frühbeck G. Association of increased visfatin/PBEF/NAMPT circulating concentrations and gene expression levels in peripheral blood cells with lipid metabolism and fatty liver in human morbid obesity. Nutr Metab Cardiovasc Dis. 2011 Apr;21(4):245-53.
BACKGROUND AND AIMS: Nicotinamide phosphoribosyltransferase (NAMPT) is an adipokine with physiological effects on the control of glucose homeostasis as well as potentially involved in inflammation. The association of circulating NAMPT concentrations with obesity has not been clearly established. The aim of the present work was to evaluate the effect of obesity on circulating concentrations and gene expression levels of NAMPT in human peripheral blood cells (PBCs) as well as its involvement in inflammation, glucose and lipid metabolism. METHODS AND RESULTS: Forty-four serum samples obtained from 14 lean and 30 obese volunteers were used to analyse the circulating concentrations of NAMPT. In addition, PBC, omental adipose tissue (OM) and liver biopsy samples obtained from a subgroup of subjects were used to determine transcript levels of NAMPT by Real-time PCR. Glucose and lipid profile as well as several inflammatory factors and hepatic enzymes were analysed. NAMPT circulating concentrations (P<0.01) and gene expression levels in PBC (P<0.05) were significantly increased in obese patients as compared to lean subjects. Total-cholesterol (P=0.016), HDL-cholesterol (P=0.036) and triglycerides (P=0.050) were significant and independent determinants of circulating concentrations of NAMPT (P<0.01). Moreover, a positive correlation (P<0.01) was found with the hepatic enzymes alanine aminotransferase, aspartate aminotransferase, and gamma-glutamyltransferase after BMI adjustment. CONCLUSION: Our work shows that NAMPT circulating concentrations and mRNA expression levels in PBC are increased in obese patients and that plasma NAMPT levels are related to inflammation, lipid metabolism and hepatic enzymes suggesting a potential involvement in fatty liver disease and in the obesity-associated inflammatory state
Enlace permanente: http://hdl.handle.net/10171/22952
Aparece en las colecciones: DA - Medicina - Endocrinología - Artículos de revista
DA - CUN - Cirugía general y digestiva - Artículos de revista
DA - CUN - Endocrinología y Nutrición - Artículos de revista

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Fichero:  Nutr, metab cardiovasc dis 2011. 245.pdf
Tamaño:  208,09 kB
Formato:  Adobe PDF
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