PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 2999285-5 1985 For the GnRH neurones the influence of endogenous opioid neurones, possibly the arcuate beta-endorphin system, appears to be mediated indirectly by inhibiting release of excitatory or facilitatory monoamines. monoamines 197-207 gonadotropin releasing hormone 1 Homo sapiens 8-12 7802419-15 1994 However, recent research has shown that GABA, the monoamines, and several neuropeptides are participants in the estrogen-sensitive network which regulates GNRH secretion. monoamines 50-60 gonadotropin releasing hormone 1 Homo sapiens 155-159