Skip to main content
British Journal of Pharmacology logoLink to British Journal of Pharmacology
. 1970 Sep;40(1):86–91. doi: 10.1111/j.1476-5381.1970.tb10613.x

Effects of morphine and pentobarbitone on acetylcholine synthesis by rat cerebral cortex

M Sharkawi
PMCID: PMC1702673  PMID: 4321081

Abstract

1. The synthesis of carbon-14-labelled acetylcholine (14C-ACh) from carbon-14 uniformly labelled glucose (U-14C-D-glucose) under different conditions was studied.

2. The ability of cerebral cortex slices and minces from morphine-treated and pentobarbitone-treated rats incubated in 4 mM K+ medium to form 14C-ACh was markedly reduced as compared with those from control animals.

3. The ability of slices from drug-treated and control animals incubated in 31 mM K+ medium to form 14C-ACh was similar.

4. Cerebral cortex homogenates from both groups of animals in either 4 or 31 mM K+ medium formed similar amounts of 14C-ACh.

5. These findings add further support to the hypothesis that the concentration of ACh at the site of synthesis governs the rate of formation of the neurotransmitter.

Full text

PDF
86

Selected References

These references are in PubMed. This may not be the complete list of references from this article.

  1. BELESLIN D., POLAK R. L. DEPRESSION BY MORPHINE AND CHLORALOSE OF ACETYLCHOLINE RELEASE FROM THE CAT'S BRAIN. J Physiol. 1965 Apr;177:411–419. doi: 10.1113/jphysiol.1965.sp007600. [DOI] [PMC free article] [PubMed] [Google Scholar]
  2. BELESLIN D., POLAK R. L., SPROULL D. H. THE RELEASE OF ACETYLCHOLINE INTO THE CEREBRAL SUBARACHNOID SPACE OF ANAESTHETIZED CATS. J Physiol. 1965 Apr;177:420–428. doi: 10.1113/jphysiol.1965.sp007601. [DOI] [PMC free article] [PubMed] [Google Scholar]
  3. Brown G. L., Feldberg W. The action of potassium on the superior cervical ganglion of the cat. J Physiol. 1936 Mar 9;86(3):290–305. doi: 10.1113/jphysiol.1936.sp003364. [DOI] [PMC free article] [PubMed] [Google Scholar]
  4. Browning E. T., Schulman M. P. (14C) acetylcholine synthesis by cortex slices of rat brain. J Neurochem. 1968 Dec;15(12):1391–1405. doi: 10.1111/j.1471-4159.1968.tb05921.x. [DOI] [PubMed] [Google Scholar]
  5. CROSSLAND J., MERRICK A. J. The effect of anaesthesia on the acetylcholine content of brain. J Physiol. 1954 Jul 28;125(1):56–66. doi: 10.1113/jphysiol.1954.sp005142. [DOI] [PMC free article] [PubMed] [Google Scholar]
  6. CROSSLAND J. The significance of brain acetylcholine. J Ment Sci. 1953 Apr;99(415):247–251. doi: 10.1192/bjp.99.415.247. [DOI] [PubMed] [Google Scholar]
  7. Celesia G. G., Jasper H. H. Acetylcholine released from cerebral cortex in relation to state of activation. Neurology. 1966 Nov;16(11):1053–1063. doi: 10.1212/wnl.16.11.1053. [DOI] [PubMed] [Google Scholar]
  8. Crossland J., Slater P. The effect of some drugs on the "free" and "bound" acetylcholine content of rat brain. Br J Pharmacol Chemother. 1968 May;33(1):42–47. doi: 10.1111/j.1476-5381.1968.tb00472.x. [DOI] [PMC free article] [PubMed] [Google Scholar]
  9. GARDINER J. E. The inhibition of acetylcholine synthesis in brain by a hemicholinium. Biochem J. 1961 Nov;81:297–303. doi: 10.1042/bj0810297. [DOI] [PMC free article] [PubMed] [Google Scholar]
  10. GIARMAN N. J., PEPEU G. Drug-induced changes in brain acetylcholine. Br J Pharmacol Chemother. 1962 Oct;19:226–234. doi: 10.1111/j.1476-5381.1962.tb01184.x. [DOI] [PMC free article] [PubMed] [Google Scholar]
  11. Kaita A. A., Goldberg A. M. Control of acetylcholine synthesis--the inhibition of choline acetyltransferase by acetylcholine. J Neurochem. 1969 Jul;16(7):1185–1191. doi: 10.1111/j.1471-4159.1969.tb05964.x. [DOI] [PubMed] [Google Scholar]
  12. Mitchell J. F., Silver A. The spontaneous release of acetylcholine from the denervated hemidiaphragm of the rat. J Physiol. 1963 Jan;165(1):117–129. doi: 10.1113/jphysiol.1963.sp007046. [DOI] [PMC free article] [PubMed] [Google Scholar]
  13. Mitchell J. F. The spontaneous and evoked release of acetylcholine from the cerebral cortex. J Physiol. 1963 Jan;165(1):98–116. doi: 10.1113/jphysiol.1963.sp007045. [DOI] [PMC free article] [PubMed] [Google Scholar]
  14. Sharkawi M., Schulman M. P. Inhibition by morphine of the release of [14c]acetylcholine from rat brain cortex slices. J Pharm Pharmacol. 1969 Aug;21(8):546–547. doi: 10.1111/j.2042-7158.1969.tb08311.x. [DOI] [PubMed] [Google Scholar]
  15. Sharkawi M., Schulman M. P. Relationship between acetylcholine synthesis and its concentration in rat cerebral cortex. Br J Pharmacol. 1969 Jun;36(2):373–379. doi: 10.1111/j.1476-5381.1969.tb09512.x. [DOI] [PMC free article] [PubMed] [Google Scholar]

Articles from British Journal of Pharmacology are provided here courtesy of The British Pharmacological Society

RESOURCES