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Sarcoplasmic reticulum Ca(2+) pumping kinetics regulates timing of local Ca(2+) releases and spontaneous beating rate of rabbit sinoatrial node pacemaker cells
RATIONALE: Sinoatrial node cells (SANC) generate local, subsarcolemmal Ca(2+) releases (LCRs) from sarcoplasmic reticulum (SR) during late diastolic depolarization (DD). LCRs activate an inward Na(+)-Ca(2+) exchange current (I(NCX)) which accelerates DD rate, prompting the next action potential (AP)...
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| Auteurs principaux: | , , , , , |
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| Format: | Artigo |
| Langue: | Inglês |
| Publié: |
2010
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| Sujets: | |
| Accès en ligne: | https://ncbi.nlm.nih.gov/pmc/articles/PMC2941556/ https://ncbi.nlm.nih.gov/pubmed/20651285 https://ncbi.nlm.nih.govhttp://dx.doi.org/10.1161/CIRCRESAHA.110.220517 |
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