Endorphins in Mental Health Research

13K ACTH Acad ACTH ACTH-LPH activity administration agonists amino acid analgesia analgesic analogues animals antagonists antibody antisera antiserum apomorphine assay B-LPH behavior binding Biochem biophys Bloom Brain Res C-fragment catatonia cell-free cent chromatography chronic clinical D-Ala² decrease depression doses of naloxone drug effects of naloxone Eipper electrophoresis eluted endogenous opioids endorphin enkephalin enkephalinamide enzymes exorphin extracts figure forms of ACTH fraction globus pallidus Goldstein Guillemin haloperidol Hökfelt homogenate hormone hypothalamus ileum immunoreactivity increase incubation inhibition inhibitors injection Kosterlitz labeled lesions levels ligand Ling met-enkephalin Met³ metabolism methionine mg/kg molecular molecule mouse MPLM naloxone naltrexone natn neurons normorphine nucleus observed opiate receptors opioid peptides patients Pert Pharmac pharmacological pituitary placebo precursor present Proc protein rat brain release reported response saline schizophrenic serum Simantov Snyder ẞ-endorphin ß-LPH stimulation striatal studies substantia nigra Terenius tissue tryptic peptides tyrosine