Population
Single cardiac ryanodine receptor (RyR) channels
Design
Preclinical
Key result
Single cardiac ryanodine receptor channels adapted to maintained Ca2+ stimuli, preserving their ability to respond to a second larger Ca2+ stimulus.
Authors
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RyR adaptation may enable graded CICR in cardiomyocytes; leaves open its role in human HF or arrhythmias.
RyR adaptation may represent a fundamental molecular control mechanism for smoothly graded Ca2+-induced Ca2+ release in the heart.
Györke et al. (1993) studied this question. Maintained Ca2+ stimuli was evaluated on Adaptation of single cardiac ryanodine receptor (RyR) channels. Single cardiac ryanodine receptor channels adapted to maintained Ca2+ stimuli, preserving their ability to respond to a second larger Ca2+ stimulus.