hrp0086p1-p722 | Pituitary and Neuroendocrinology P1 | ESPE2016

Role of the Metabotropic mGlu5 Glutamate Receptor in the Initiation of Puberty and Reproduction in Female Mice

Inta Ioana , De Angelis Roberto , Domonkos Emese , Lankisch Katja , Boehm Ulrich , Gass Peter , Bettendorf Markus

Background: The neuroendocrine mechanisms of the initiation of puberty are still incompletely deciphered. Accumulating data indicate a main role of the glutamate system in regulating hypothalamic GnRH. However, the underlying neurobiological mechanisms are yet poorly investigated. Mice lacking metabotropic mGlu5 receptors (mGluR5) show sever unexplained infertility.Objective and hypotheses: We aimed in the present study to analyze the specific role of mG...

hrp0084p1-118 | Puberty | ESPE2015

Specific Hypothalamic Activation Pattern by mGlu5 Receptor Blockade in vivo During Pubertal Development in Female Mice

Inta Ioana , de Angelis Roberto , Lankisch Katja , Dormann Christof , Pfeiffer Natascha , Boehm Ulrich , Gass Peter , Bettendorf Markus

Background: Puberty is characterised by important changes of brain networks. The glutamate system plays a main role in modulating the onset of puberty as shown for NMDA receptor agonists. However, the underlying mechanisms are poorly understood. Metabotropic mGlu5 receptors (mGluR5) are tightly linked to NMDA receptors. The effect of mGluR5 blockade on neurohormonal mechanisms in puberty initiation were not studied yet.Objective and hypotheses: To invest...