Searchable abstracts of presentations at key conferences in endocrinology

ea0041gp129 | Obesity | ECE2016

Direct effects of dopamine on mitochondrial thermogenesis in brown adipocytes

Kohlie Rose , Perwitz Nina , Lehnert Hendrik , Klein Johannes , Iwen Alexander

Brown adipose tissue (BAT) is key in energy homeostasis. Catecholamines are critically involved in the regulation of BAT-thermogenesis, yet current research has focussed on noradrenaline and adrenaline. Some evidence suggests a role of dopamine (DA) in BAT-thermogenesis but the intracellular mechanisms have not been addressed. We applied our extensively characterised murine brown adipocyte cell line to address these questions.D1-like and D2-like receptor...

ea0037ep610 | Obesity and cardiovascular endocrinology | ECE2015

Linking temperature to metabolism: the role of brown adipose tissue in humans

Backhaus Jenny , Rademacher Leonie , Iwen Alexander , Waltl Maren , Noll Melanie , Lehnert Hendrik , Schmid Sebastian M

The increasing prevalence of obesity is paralleled by related metabolic disorders such as insulin resistance and type 2 diabetes mellitus (T2DM). Extensive efforts across disciplines are made to reveal underlying mechanisms and develop effective therapies against obesity and its comorbidities. Since PET–CT studies provided evidence for functional brown adipose tissue (BAT) in adult humans, this specialized thermogenic compartment of adipocytes is in the focus of current r...

ea0035oc1.4 | Thyroid clinical | ECE2014

Consequences of experimental hyperthyroidism on brain structure and function in humans

Dirk Anna-Luise , Goebel Anna , Heldmann Marcus , Iwen Alexander , Brabant Georg , Munte Thomas

Objective: Disturbed levels of thyroid hormones are associated with neuropsychiatric disorders, including memory impairments. Even short-term hyperthyroidism may affect properties of the human brain. To investigate the influence of thyroid hormones, we conducted functional neuroimaging. The aim of this study was to evaluate functional changes in working memory performance.Materials and Methods: Twenty healthy, male, right-handed subjects (age range 21&#1...

ea0035oc7.5 | IGF-1 and Thyroid Basic | ECE2014

Direct triiodothyronine effects in brown adipocytes

Schroder Erich , Perwitz Nina , Resch Julia , Klein Johannes , Lehnert Hendrik , Weitzel Joachim M. , Alexander Iwen K. , Brabant Georg

Introduction: Thyroid hormones (TH) are essential regulators of metabolism and increase energy expenditure (EE). Mitochondria-rich brown adipose tissue (BAT) is specialised in thermogenesis and significantly contributes to EE. BAT contains essential components of TH action but TH transporters like MCT8 have not been characterised so far. As direct effects on O2 consumption and mitochondrial action have not been investigated before we tested MCT8 expression and direct effects o...