An immunomodulatory neuropeptide that acts to release ACTH from the anterior pituitary and stimulates the sympathetic nervous system and adrenal medulla. Function Corticotropin-Releasing Factor (CRF) is a pivotal hormone in the human and rat endocrine system. It primarily functions in the stress response by stimulating the pituitary synthesis and secretion of adrenocorticotropic hormone (ACTH). This, in turn, triggers the adrenal cortex to release cortisol in humans or corticosterone in rats. CRF also plays a role in regulating various physiological responses, including behavioral, cardiovascular, immune, and gastrointestinal functions. Structure CRF is a peptide hormone, typically comprising a sequence of amino acids. In humans and rats, the structure of CRF is similar but not identical, reflecting their evolutionary relationship. The peptide binds to CRF receptors, which are part of the G protein-coupled receptor family, triggering a cascade of intracellular events. Application In medical research and clinical applications, CRF is often used to study and understand stress-related physiological responses and disorders, including anxiety, depression, and post-traumatic stress disorder (PTSD). It also has potential therapeutic applications in treating these conditions. For precise information on the molecular formula, weight, and specific applications of Corticotropin Releasing Factor in humans and rats, a more focused search or reference to specialized biochemical databases would be required. | 