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Optical Mapping of Intra-Sarcoplasmic Reticulum Ca2+ and Transmembrane Potential in the Langendorff-perfused Rabbit Heart
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Biologie
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Journal JoVE Biologie
Optical Mapping of Intra-Sarcoplasmic Reticulum Ca2+ and Transmembrane Potential in the Langendorff-perfused Rabbit Heart

Optical Mapping of Intra-Sarcoplasmic Reticulum Ca2+ and Transmembrane Potential in the Langendorff-perfused Rabbit Heart

DOI:
10.3791/53166-v

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09:26 min

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September 10, 2015

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, ,
1Department of Pharmacology,University of California Davis, 2Departments of Pharmacology and Biomedical Engineering,University of California Davis

Chapitres

  • 00:05Titre
  • 01:49Preparations
  • 03:31Harvesting, Perfusing and Dye-loading a Rabbit Heart
  • 07:09Optical Mapping
  • 07:56Resulting Vm and SR Ca2+ Signals from a Langendorff-perfused Rabbit Heart
  • 08:59Conclusion

Summary

Traduction automatique

Traduction automatique

This article describes the detailed protocol and equipment necessary for dual optical mapping of transmembrane potential (Vm) and free intra-sarcoplasmic reticulum (SR) Ca2+ in the Langendorff-perfused rabbit heart. This method allows for direct observation and quantification of Vm and SR Ca2+ dynamics in the intact heart.

Tags

Keywords: Optical MappingSarcoplasmic ReticulumCa2+ HandlingTransmembrane PotentialLangendorff-perfused HeartFluo-5NExcitation-contraction CouplingArrhythmiaSpatial MappingDual Optical Mapping

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