RI UFLA (Universidade Federal de Lavras) >
DCA - Departamento de Ciência dos Alimentos >
DCA - Artigos publicados em periódicos >

Please use this identifier to cite or link to this item: http://repositorio.ufla.br/jspui/handle/1/9700

Title: Improved Lipid and glucose metabolism in transgenic rats with increased circulating angiotensin-(1-7)
???metadata.dc.creator???: Santos, S. H. S.
Braga, J. F.
Mario, E. G.
Pôrto, L. C. J.
Rodrigues- Machado, M. G.
Murari, A.
Botion, L. M.
Alenina, N.
Bader, M.
Santos, R. A. S.
Keywords: Angiotensin-(1-7) Mas axis
Glucose metabolism
Adipose tissue
Publisher: American Heart Association
Issue Date: 3-Feb-2010
Citation: SANTOS, S. H. S. et al. Improved Lipid and glucose metabolism in transgenic rats with increased circulating angiotensin-(1-7). Arteriosclerosis, Thrombosis and Vascular Biology, [S.l.], v. 30, n. 5, p. 953-961, May 2010.
Abstract: Objective—Obesity and diabetes remain among the world’s most pervasive health problems. Although the importance of angiotensin II for metabolic regulation is well documented, the role of the angiotensin-(1-7)/Mas axis in this process is poorly understood. The aim of this study was to evaluate the effect of increased angiotensin-(1-7) plasma levels in lipid and glucose metabolism using transgenic rats that express an angiotensin-(1-7)-releasing fusion protein, TGR(A1-7)3292 (TGR). Methods and Results—The increased angiotensin-(1-7) levels in TGR induced enhanced glucose tolerance, insulin sensitivity, and insulin-stimulated glucose uptake. In addition, TGR presented decreased triglycerides and cholesterol levels, as well as a significant decrease in abdominal fat mass, despite normal food intake. These alterations were accompanied by a marked decrease of angiotensinogen expression and increased Akt in adipose tissue. Furthermore, augmented plasma levels and expression in adipose tissue was observed for adiponectin. Accordingly, angiotensin-(1-7) stimulation increased adiponectin production by primary adipocyte culture, which was blocked by the Mas antagonist A779. Circulating insulin and muscle glycogen content were not altered in TGR. Conclusion—These results show that increased circulating angiotensin-(1-7) levels lead to prominent changes in glucose and lipid metabolism.
URI: http://atvb.ahajournals.org/content/30/5/953
???metadata.dc.language???: en
Appears in Collections:DCA - Artigos publicados em periódicos

Files in This Item:

There are no files associated with this item.

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

View Statistics


DSpace Software Copyright © 2002-2010  Duraspace - Feedback