Searchable abstracts of presentations at key conferences in endocrinology

ea0019p134 | Diabetes, Metabolism and Cardiovascular | SFEBES2009

Downregulation of hepatic glucose 6-phosphatase-alpha in patients with nonalcoholic fatty liver

Konopelska S , Kienitz T , Quinkler M

Background: Microsomal glucose-6-phosphatase-alpha (G6Pase-alpha) and glucose-6-phosphate transporter (G6PT) perform the terminal step in both glycogenolysis and gluconeogenesis. Deficiency of G6Pase-alpha leads to glycogen storage disease type 1a, whereas deficiency of G6PT leads to glycogen storage disease type 1b. Partial inhibition of G6Pase in rats results in increased hepatic triglyceride contents and de novo lipogenesis leading to hepatic steatosis. Hepatic steat...

ea0019p319 | Steroids | SFEBES2009

Testosterone increases 11β-hydroxysteroid dehydrogenase type 1 (11β-HSD1) expression in the rat heart

Michaelis M , Hofmann P , Goetz F , Kienitz T , Quinkler M

Introduction: 11β-HSD1 is the key enzyme of intracellular glucocorticoid regulation by converting inactive cortisone to active cortisol. The latter binds to the glucocorticoid and mineralocorticoid receptor (MR) in the heart. Cortisol excess in Cushing’s syndrome leads to left ventricular hypertrophy. Also androgens cause myocardial remodelling. However, the impact of testosterone on the cardiovascular system is strongly disputed showing beneficial and deleterious ef...

ea0011p302 | Diabetes, metabolism and cardiovascular | ECE2006

Renal expression of alpha-ENaC is increased in testosterone treated rats

Kienitz T , Allolio B , Strasburger CJ , Quinkler M

Introduction: There is no difference in blood pressure between boys and girls, but following puberty, blood pressure increases more in men than in women. The higher blood pressure and stronger progression of hypertension in men is associated with a higher risk and mortality for cardiovascular diseases than in women. Androgens are known to play an important role in renal tubular epithelial cell growth, hypertrophy and erythropoetin production and may be important determinants o...