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Sökning: WFRF:(Wess T.)

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  • Klepac, K., et al. (författare)
  • The G(q) signalling pathway inhibits brown and beige adipose tissue
  • 2016
  • Ingår i: Nature Communications. - : Springer Science and Business Media LLC. - 2041-1723. ; 7
  • Tidskriftsartikel (refereegranskat)abstract
    • Brown adipose tissue (BAT) dissipates nutritional energy as heat via the uncoupling protein-1 (UCP1) and BAT activity correlates with leanness in human adults. Here we profile G protein-coupled receptors (GPCRs) in brown adipocytes to identify druggable regulators of BAT. Twenty-one per cent of the GPCRs link to the G(q) family, and inhibition of G(q) signalling enhances differentiation of human and murine brown adipocytes. In contrast, activation of G(q) signalling abrogates brown adipogenesis. We further identify the endothelin/Ednra pathway as an autocrine activator of G(q) signalling in brown adipocytes. Expression of a constitutively active G(q) protein in mice reduces UCP1 expression in BAT, whole-body energy expenditure and the number of brown-like/beige cells in white adipose tissue (WAT). Furthermore, expression of G(q) in human WAT inversely correlates with UCP1 expression. Thus, our data indicate that G(q) signalling regulates brown/beige adipocytes and inhibition of G(q) signalling may be a novel therapeutic approach to combat obesity.
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3.
  • Mausberg, Theresa-Bernadette, et al. (författare)
  • A Locus on Chromosome 5 Is Associated with Dilated Cardiomyopathy in Doberman Pinschers
  • 2011
  • Ingår i: PLoS One. - : Public Library of Science (PLoS). - 1932-6203. ; 6:5, s. e20042-
  • Tidskriftsartikel (refereegranskat)abstract
    • Dilated cardiomyopathy (DCM) is a heterogeneous group of heart diseases with a strong genetic background. Currently, many human DCM cases exist where no causative mutation can be identified. DCM also occurs with high prevalence in several large dog breeds. In the Doberman Pinscher a specific DCM form characterized by arrhythmias and/or echocardiographic changes has been intensively studied by veterinary cardiologists. We performed a genome-wide association study in Doberman Pinschers. Using 71 cases and 70 controls collected in Germany we identified a genome-wide significant association to DCM on chromosome 5. We validated the association in an independent cohort collected in the United Kingdom. There is no known DCM candidate gene under the association signal. Therefore, DCM in Doberman Pinschers offers the chance of identifying a novel DCM gene that might also be relevant for human health.
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