Searchable abstracts of presentations at key conferences in endocrinology

ea0056gp223 | Reproduction | ECE2018

GHR ablation in the brain or in leptin receptor expressing cells causes metabolic effects during pregnancy

Teixeira Pryscila DS , Furigo Isadora C , Donato Jose

Introduction: Pregnancy leads to extensive adaptations in the female’s body, by changing the secretion and responses to several hormones. GH is required for fetal nutrition, growth during pregnancy and for mammary development and lactation, although its central effects are not completely clarified.Aim: The aim of this study was to investigate whether central GH signaling regulates physiological and metabolic adaptations during pregnancy.<p class...

ea0056p561 | Obesity | ECE2018

Absence of leptin signaling during development causes metabolic and neuronal disturbances in adult life

Donato Jr. Jose , Ramos-Lobo Angela , Furigo Isadora , Teixeira Pryscila

The hormone leptin is required for the energy balance regulation. However, leptin also controls many other biological functions. Among these actions, some authors suggest that leptin exhibits neurotrophic effects in early life and plays a key role in the development of neurocircuitries that regulate energy metabolism. However, the precise role of leptin during development is still unclear. Thus, our study had the objective to investigate the consequences of the absence of lept...

ea0056oc12.1 | Novel aspects of puberty development and Cushing's disease | ECE2018

Growth hormone signaling in leptin receptor expressing cells, but not in Kiss1 expressing neurons, regulates the timing of puberty

Bohlen Tabata M , Zampieri Thais T , Furigo Isadora C , Teixeira Pryscila DS , Donato Jose , Frazao Renata

Growth hormone (GH) is an important factor involved in the regulation of multiple biological functions. Although the influence of GH is widespread throughout several organs and tissues, the effects of GH on brain functions, such as those related to reproductive functions, are still elusive. GH deficiency or resistance can be related to late puberty onset, lack of sexual maturation and infertility. In contrast, GH therapy can accelerate puberty onset or be used to increase preg...

ea0056oc13.5 | The curious case of growth hormone | ECE2018

Growth hormone acts in AgRP neurons to control energy expenditure during food restriction and promotes counter-regulatory responses to hypoglycemia via the ventromedial hypothalamus

Furigo Isadora C , Teixeira Pryscila DS , Souza Gabriel O , List Eduard , Kopchick John , Donato Jose

Growth hormone (GH) responsive cells are extensively distributed in central nervous system, including in neurons of the arcuate (ARH) and ventromedial nucleus (VMH) of hypothalamus, areas that control food intake, energy expenditure and blood glucose. During metabolic stresses, such as food restriction and hypoglycemia, GH secretion is stimulated and may be important to maintain survival. In the present study, we first verified that an acute GH injection stimulates food intake...