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Displacement of activator thresholds in cardiac muscle by protons and calcium ions.
1. The Na current threshold in sheep cardiac Purkinje fibres and in frog atrium is shifted in a positive direction by protons and Ca2+ ions. The titration curves for Purkinje fibres are consistent with a surface potential of -18 mV at pH 7.4 and 1.8 mM-Ca. 2. In Purkinje fibres, the pacemaker K curr...
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| Main Authors: | , |
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| Formato: | Artigo |
| Idioma: | Inglês |
| Publicado em: |
1978
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| Assuntos: | |
| Acesso em linha: | https://ncbi.nlm.nih.gov/pmc/articles/PMC1282742/ https://ncbi.nlm.nih.gov/pubmed/31463 |
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