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. 1970 Aug;209(3):689–699. doi: 10.1113/jphysiol.1970.sp009186

The effect of procaine on neuromuscular transmission

M Kordaš
PMCID: PMC1395555  PMID: 5499803

Abstract

1. The mechanism of procaine action on post-synaptic receptors for acetylcholine was studied by recording the end-plate current at membrane potentials ranging from about +30 to about -140 mV.

2. It has been found that at resting membrane potential of about -60 to -80 mV the end-plate current has a fast initial and a slow late component. During hyperpolarization of the muscle fibre the amplitude of the slow component is depressed and its half-time lengthened. When the membrane potential is inverted the difference in the time course of both components is much less pronounced or absent.

3. It is suggested that procaine modifies the receptor response induced by acetylcholine, and that this modification is dependent on membrane potential.

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Selected References

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

  1. DEL CASTILLO L., KATZ B. A study of curare action with an electrical micromethod. Proc R Soc Lond B Biol Sci. 1957 May 7;146(924):339–356. doi: 10.1098/rspb.1957.0015. [DOI] [PubMed] [Google Scholar]
  2. FATT P., KATZ B. An analysis of the end-plate potential recorded with an intracellular electrode. J Physiol. 1951 Nov 28;115(3):320–370. doi: 10.1113/jphysiol.1951.sp004675. [DOI] [PMC free article] [PubMed] [Google Scholar]
  3. FURUKAWA T. Properties of the procaine end-plate potential. Jpn J Physiol. 1957 Sep 30;7(3):199–212. doi: 10.2170/jjphysiol.7.199. [DOI] [PubMed] [Google Scholar]
  4. Gage P. W., Armstrong C. M. Miniature end-plate currents in voltage-clamped muscle fibre. Nature. 1968 Apr 27;218(5139):363–365. doi: 10.1038/218363b0. [DOI] [PubMed] [Google Scholar]
  5. Gage P. W., Eisenberg R. S. Action potentials, afterpotentials, and excitation-contraction coupling in frog sartorius fibers without transverse tubules. J Gen Physiol. 1969 Mar;53(3):298–310. doi: 10.1085/jgp.53.3.298. [DOI] [PMC free article] [PubMed] [Google Scholar]
  6. Gage P. W., Eisenberg R. S. Capacitance of the surface and transverse tubular membrane of frog sartorius muscle fibers. J Gen Physiol. 1969 Mar;53(3):265–278. doi: 10.1085/jgp.53.3.265. [DOI] [PMC free article] [PubMed] [Google Scholar]
  7. Howell J. N. A lesion of the transverse tubules of skeletal muscle. J Physiol. 1969 May;201(3):515–533. doi: 10.1113/jphysiol.1969.sp008770. [DOI] [PMC free article] [PubMed] [Google Scholar]
  8. Maeno T. Analysis of sodium and potassium conductances in the procaine end-plate potential. J Physiol. 1966 Apr;183(3):592–606. doi: 10.1113/jphysiol.1966.sp007886. [DOI] [PMC free article] [PubMed] [Google Scholar]
  9. Steinbach A. B. A kinetic model for the action of xylocaine on receptors for acetylcholine. J Gen Physiol. 1968 Jul;52(1):162–180. doi: 10.1085/jgp.52.1.162. [DOI] [PMC free article] [PubMed] [Google Scholar]
  10. Steinbach A. B. Alteration by xylocaine (lidocaine) and its derivatives of the time course of the end plate potential. J Gen Physiol. 1968 Jul;52(1):144–161. doi: 10.1085/jgp.52.1.144. [DOI] [PMC free article] [PubMed] [Google Scholar]
  11. Steinbach A. B. Unusual endplate potentials which reflect the complexity of muscle structure. Nature. 1967 Dec 30;216(5122):1331–1333. doi: 10.1038/2161331a0. [DOI] [PubMed] [Google Scholar]
  12. TAKEUCHI A., TAKEUCHI N. Active phase of frog's end-plate potential. J Neurophysiol. 1959 Jul;22(4):395–411. doi: 10.1152/jn.1959.22.4.395. [DOI] [PubMed] [Google Scholar]
  13. TAKEUCHI A., TAKEUCHI N. On the permeability of end-plate membrane during the action of transmitter. J Physiol. 1960 Nov;154:52–67. doi: 10.1113/jphysiol.1960.sp006564. [DOI] [PMC free article] [PubMed] [Google Scholar]

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