Literature DB >> 6248252

Influence of intracellular injection of H+ on the electrical coupling in cardiac Purkinje fibres.

W C De Mello.   

Abstract

The effect of intracellular injection of H+ on the electrical coupling of canine Purkinje cells was investigated. It was found that H+ increased the intracellular resistance (ri) and caused electrical uncoupling. The effect of high (H+)i on cell communication was partially reverted by intracellular injection of EDTA. These observations seem to indicate that the effect of low pHi on the electrical coupling can be explained, at least in part, by a rise in free [Ca2+]i. Further studies are required.

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Year:  1980        PMID: 6248252     DOI: 10.1016/0309-1651(80)90009-0

Source DB:  PubMed          Journal:  Cell Biol Int Rep        ISSN: 0309-1651


  5 in total

Review 1.  Effects of pCai and pHi on cell-to-cell coupling.

Authors:  M L Pressler
Journal:  Experientia       Date:  1987-10-15

2.  Dependence of junctional conductance on proton, calcium and magnesium ions in cardiac paired cells of guinea-pig.

Authors:  A Noma; N Tsuboi
Journal:  J Physiol       Date:  1987-01       Impact factor: 5.182

3.  Intercellular coupling in frog heart muscle. Electrophysiological and morphological aspects.

Authors:  H G Haas; R Meyer; H M Einwächter; W Stockem
Journal:  Pflugers Arch       Date:  1983-12       Impact factor: 3.657

4.  The influence of pH on the healing-over of mammalian cardiac muscle.

Authors:  W C De Mello
Journal:  J Physiol       Date:  1983-06       Impact factor: 5.182

5.  Ungulate cardiac purkinje fibres: the influence of intracellular pH on the electrical cell-to-cell coupling.

Authors:  W R Reber; R Weingart
Journal:  J Physiol       Date:  1982-07       Impact factor: 5.182

  5 in total

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