GNRH1 and progressive pseudorheumatoid arthropathy of childhood: The other pathways, including long‐term depression in synaptic transmission,75 GnRH secretion, salivary secretion,76 glutamatergic synapse,77, 78 and oxytocin signaling79 have essential roles in neurotransmission and a variety of reproductive phenotypes, which can be relevant to depressive‐like behaviors in PPD.80