G
Gunnar Mellgren
Researcher at Haukeland University Hospital
Publications - 169
Citations - 5599
Gunnar Mellgren is an academic researcher from Haukeland University Hospital. The author has contributed to research in topics: Adipose tissue & Internal medicine. The author has an hindex of 36, co-authored 145 publications receiving 4629 citations. Previous affiliations of Gunnar Mellgren include University of Bergen.
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Journal ArticleDOI
FTO Obesity Variant Circuitry and Adipocyte Browning in Humans
Melina Claussnitzer,Simon N. Dankel,Kyoung-Han Kim,Gerald Quon,Wouter Meuleman,Christine Haugen,Viktoria Glunk,Isabel S. Sousa,Jacqueline L. Beaudry,Vijitha Puviindran,Nezar Abdennur,Jannel Liu,Per-Arne Svensson,Yi-Hsiang Hsu,Daniel J. Drucker,Gunnar Mellgren,Chi-chung Hui,Hans Hauner,Manolis Kellis,Manolis Kellis +19 more
TL;DR: The data indicate that the FTO allele associated with obesity represses mitochondrial thermogenesis in adipocyte precursor cells in a tissue-autonomous manner, and points to a pathway for adipocyte thermogenesis regulation involving ARID5B, rs1421085, IRX3, and IRX5, which, when manipulated, had pronounced pro-obesity and anti-ob obesity effects.
Journal ArticleDOI
Novel (Rp)-cAMPS analogs as tools for inhibition of cAMP-kinase in cell culture. Basal cAMP-kinase activity modulates interleukin-1 beta action.
Bjørn Tore Gjertsen,Gunnar Mellgren,A.D. Otten,Erik Maronde,Hans G. Genieser,Bernd Jastorff,Olav Karsten Vintermyr,G S McKnight,Stein Ove Døskeland +8 more
TL;DR: It is concluded that the basal cAMP-kinase activity exerts a tonic inhibition of hepatocyte replication and can have a permissive role for the action of another (interleukin-1β) signaling pathway.
Journal ArticleDOI
ASC-1, PAT2, and P2RX5 are cell surface markers for white, beige, and brown adipocytes
Siegfried Ussar,Kevin Y. Lee,Simon N. Dankel,Simon N. Dankel,Simon N. Dankel,Jeremie Boucher,Max-Felix Haering,André Kleinridders,Thomas Thomou,Ruidan Xue,Yazmín Macotela,Aaron M. Cypess,Yu-Hua Tseng,Gunnar Mellgren,Gunnar Mellgren,C. Ronald Kahn +15 more
TL;DR: Three new surface markers of white, beige, and brown fat cells are identified using a combination of in silico, in vitro, and in vivo methods to identify and target white and brown/beige adipocytes for therapeutic purposes.
Journal ArticleDOI
Effects of CYP2D6 and SULT1A1 genotypes including SULT1A1 gene copy number on tamoxifen metabolism
Jennifer Gjerde,Jennifer Gjerde,M. Hauglid,Harald Breilid,Harald Breilid,Steinar Lundgren,Jan Erik Varhaug,E.R. Kisanga,Gunnar Mellgren,Gunnar Mellgren,Vidar M. Steen,Vidar M. Steen,Ernst A. Lien,Ernst A. Lien +13 more
TL;DR: It is proposed that therapeutic drug monitoring should be included in studies linking CYP2D6 and SULT1A1 genotypes to clinical outcome and may partly explain the wide inter-individual variations in the serum levels of tamoxifen and its metabolites.
Journal ArticleDOI
Leveraging cross-species transcription factor binding site patterns: from diabetes risk loci to disease mechanisms
Melina Claussnitzer,Simon N. Dankel,Bernward Klocke,Harald Grallert,Viktoria Glunk,Tea Berulava,Heekyoung Lee,Nikolay Oskolkov,João Fadista,Kerstin Ehlers,Simone Wahl,Christoph Hoffmann,Kun Qian,Tina Rönn,Helene Riess,Martina Müller-Nurasyid,Nancy Bretschneider,Timm Schroeder,Thomas Skurk,Bernhard Horsthemke,Derek Spieler,Martin Klingenspor,Martin Seifert,Michael J. Kern,Niklas Mejhert,Ingrid Dahlman,Ola Hansson,Stefanie M. Hauck,Matthias Blüher,Peter Arner,Leif Groop,Thomas Illig,Karsten Suhre,Yi-Hsiang Hsu,Gunnar Mellgren,Hans Hauner,Helmut Laumen +36 more
TL;DR: It is shown that integrative computational analysis of phylogenetic conservation with a complexity assessment of co-occurring transcription factor binding sites (TFBS) can identify cis-regulatory variants and elucidate their mechanistic role in disease.