Opioid activity released from cat spinal cord by sciatic nerve stimulation

Morphine-like ligand for opiate receptors in human CSF

1975 • 281 citations

Microinjection of morphine into the periaqueductal gray evokes the release of serotonin from spinal cord

1979 • 234 citations

Factors governing release of methionine enkephalin-like immunoreactivity from mesencephalon and spinal cord of the cat in vivo.

1981 • 170 citations

Characterization of electrophoretically separable endorphins in human CSF

1983 • 56 citations

Endorphins in human cerebrospinal fluid

1982 • 42 citations

Enkephalin levels decrease in rat striatum during morphine abstinence

1979 • 37 citations