Corticotropin-releasing hormone, also known as corticotropin-releasing factor (CRF) or corticoliberin, is a peptide hormone and neurotransmitter involved in the stress response. It is secreted from the hypothalamus and is the major regulator of pituitary corticotropin-release and consequent glucocorticoid secretion. NBI 35965 is a selective CRF receptor 1 (CRF1) antagonist with a Ki value of 4 nM. It does not inhibit CRF2 (Ki = >10,000 nM). NBI 35965 inhibits cAMP accumulation and adrenocorticotropic hormone (ACTH) production in vitro (pIC50s = 7.1 and 6.9, respectively) and reduces CRF- and stress-induced ACTH production in vivo. In animal models of stress, NBI 35965 administration produces anxiolytic effects.[Cayman Chemical]
