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Experientia

, Volume 43, Issue 8, pp 873–875 | Cite as

Identification of a pre-hibernating state in myocardium from nonhibernating chipmunks

  • N. Kondo
Short Communications

Summary

During the hibermating season, the amplitude of the cardiac action potential plateau of nonhibernating chipmunks was reduced. Replacing external Ca by Sr inhibited the electromechanical responses of these preparations. Similar properties were observed in hibernating animal preparations, suggesting that changes in cardiac function are already triggered before hibernation begins.

Key words

Pre-hibernating state hibernating and nonhibernating seasons chipmunks myocardium strontium plateau potential 

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Copyright information

© Birkhäuser Verlag 1987

Authors and Affiliations

  • N. Kondo
    • 1
  1. 1.Department of PharmacologyMitsubishi-Kasei Institute of Life SciencesTokyo(Japan)

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