Rotation cultures from different regions of embryonic chick brain. II. Presence of stereospecific opiate binding and responses to narcotics

G. R. Peterson, P. H. Fischer, H. H. Loh, A. Burkhalter

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Abstract

Cells taken from different parts (cerebra, optic lobes and the mesencephalon diencephalon region) of 8 day embryonic chick brains were reaggregated by rotation. The cultures were found to bind (3H) etorphine in a stereospecific manner and in developmental patterns that were comparable to the corresponding regions of the embryonic chick brain. Certain biochemical responses of the cultures to narcotic drugs were studied, and the addition of 2 x 10-4M levorphanol brought about 40-100% increases in the activity of acetylcholinesterase and the concentration of protein in all 3 types of cultures. These effects of the opiates were not stereospecific, but they were antagonized by the narcotic antagonist naloxone (1.25 x 10-4M).

Original languageEnglish (US)
Pages (from-to)222-230
Number of pages9
JournalNeurobiology
Volume4
Issue number4
StatePublished - Dec 1 1974

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Opiate Alkaloids
Narcotics
Levorphanol
Etorphine
Diencephalon
Narcotic Antagonists
Brain
Cerebrum
Acetylcholinesterase
Naloxone
Mesencephalon
Pharmaceutical Preparations
Proteins

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Rotation cultures from different regions of embryonic chick brain. II. Presence of stereospecific opiate binding and responses to narcotics. / Peterson, G. R.; Fischer, P. H.; Loh, H. H.; Burkhalter, A.

In: Neurobiology, Vol. 4, No. 4, 01.12.1974, p. 222-230.

Research output: Contribution to journalArticle

Peterson, G. R. ; Fischer, P. H. ; Loh, H. H. ; Burkhalter, A. / Rotation cultures from different regions of embryonic chick brain. II. Presence of stereospecific opiate binding and responses to narcotics. In: Neurobiology. 1974 ; Vol. 4, No. 4. pp. 222-230.
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