Searchable abstracts of presentations at key conferences in endocrinology

ea0041ep702 | Growth hormone IGF axis - basic | ECE2016

Macronutrient composition has sex specific effects on the GH-IGF-I axis

Kavermann Larissa , Andersen Kirstin , Horngacher Amon , Bidlingmaier Martin

Metabolic diseases are among the most important diseases in western societies and usually related to obesity. Dietary interventions are recommended for treatment and include both strategies with reduced caloric intake and alterations in macronutrient composition. Metabolism must be assumed to be regulated differently in females and males. In previous studies we demonstrated that low carbohydrate high fat (LCHF) diets affect GH/IGF-I axis in male rats. We know investigated whet...

ea0032p686 | Neuroendocrinology | ECE2013

Low carbohydrate/high fat energy intake decreases estrogen receptor alpha expression in the arcuate nucleus of the rat hypothalamus

Zengin Ayse , Bielohuby Maximilian , Horngacher Amon , Meurer Sarina , Bidlingmaier Martin

Low-carbohydrate/high fat diets (LC-HFD) effectively induce body weight loss in both animals and humans; however, in rats this is paralleled by increased visceral adiposity contributing to impaired glucose tolerance. Estrogen inhibits adipose tissue accumulation, with estrogen deficient female animals displaying increased body weight and visceral adiposity with reduced insulin sensitivity, which can be reversed with estrogen replacement. Consistent with the effects seen in fem...

ea0032p741 | Obesity | ECE2013

Consumption of low-carbohydrate/high fat diets impairs glucose tolerance in rats independent of changes in body composition

Bielohuby Maximilian , Zengin Ayse , Horngacher Amon , Meurer Sarina , Bidlingmaier Martin

Moderate, ‘Atkin’s-style’ low-carbohydrate/high fat diets (LC-HFD) are claimed to induce weight loss in overweight subjects and to ameliorate glucose metabolism, whereas extreme ketogenic LC-HFD are used to treat neurological disorders like pediatric epilepsy. To investigate the effects of both types of LC-HFD on glucose and insulin metabolism independent of the energetic intake, we pair-fed male Wistar rats isoenergetic of standard rodent chow (CH) or one of tw...

ea0041gp52 | Cardiovascular endocrinology | ECE2016

Sex specific effects of alterations in macronutrient composition on fat accumulation, lipid-synthesis, -transport and –storage

Andersen Kirstin , Kavermann Larissa , Horngacher Amon , Tom Robby Zachariah , Sachs Stephan , Hofmann Susanna , Bidlingmaier Martin

Recent data suggest that not only caloric density but also macronutrient composition of diets can influence metabolism, body composition and the development of metabolic disorders. A limitation of previous studies was that effects were studied predominantly in males. To better understand potential differences in the response of males and females to manipulations of dietary macronutrients, our studies were undertaken in both sexes. As a dietary model, we used regular chow diet ...

ea0035p83 | Bone and Osteoporosis | ECE2014

Low-carbohydrate/high-fat diets do not have negative effects on bone density in female rats in contrast to male rats

Zengin Ayse , Kropp Benedikt , Chevalier Yan , Horngacher Amon , Sustarsic Riia , Sustarsic Elahu , Benedix Sarina , Herbach Nadja , Milz Stefan , Bielohuby Maximilian , Bidlingmaier Martin

Ketogenic low-carbohydrate/high fat diets (LC-HFD) induce weight loss in both animals and humans. However, a number of unwanted side effects with these diets have been reported. We have previously shown in male rats that LC-HFDs negatively affect bone growth and bone mineral density, possibly due to macronutrient-induced impairments of the GH/IGF-system. Given the importance of dietary macronutrients in the regulation of bone density in male rats, in this study we investigated...