β-Endorphin (rat) (trifluoroacetate salt)

β-Endorphin (rat) (trifluoroacetate salt)

CAT N°: 24153
Price:

1,523.00 1,294.55

?-Endorphin (?-EP) is an endogenous opioid neuropeptide with diverse biological activities.{37350} It is produced via piomelanocortin cleavage in the pituitary gland, hypothalamus, and in lymphocytes, then migrates to its sites of action which include plasma, gut, skin, placenta, cerebrospinal fluid, and cardiac tissues. ?-EP induces concentration-dependent decreases in electrically stimulated contraction of the mouse vas deferens that can be reversed by the ?-opioid antagonist CTP and ?-opioid antagonist ICI 174,864.{37351} In vivo, ?-EP (5 ?g, i.c.v.) slows gastrointestinal transit in mice. ?-EP (0.5 or 5 ?g, i.c.v.) stimulates food intake in rats for 4 to 6 hours, however, this effect is not prolonged with continuous infusion.{37352} It antagonizes the appetite-suppressive effects of ?-melanocyte-stimulating hormone (?-MSH) for the first three days post administration. ?-EP also reduces paralytic demyelination induced by the murine coronavirus MHV-JHM in immunocompetent, but not irradiated or immune-incompetent, mice and rats.{37353}

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