1. Wallenberg Laboratory for Cardiovascular and Metabolic Research, Department of Molecular and Clinical Medicine, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg , SE-413 45 Gothenburg , Sweden
2. Department of Medicine, Division of Endocrinology and Einthoven Laboratory for Experimental Vascular Medicine, Leiden University Medical Center , 2333 ZA Leiden , the Netherlands
3. Department of Endocrinology, Sahlgrenska University Hospital , Region Västra Götaland, SE-413 45 Gothenburg , Sweden