Related Experiment Videos
[Effect of temperature on Ca induced Ca release (CICR) rate]
1First Department of Anesthesiology, Toho University School of Medicine, Tokyo.
Masui. the Japanese Journal of Anesthesiology
|April 30, 1998
Summary
Increasing temperature accelerates calcium-induced calcium release (CICR) rate logarithmically. Body cooling is vital for controlling metabolism and reducing accelerated CICR during medical procedures.
Area of Science:
- Physiology
- Muscle Biology
Context:
- Investigating the role of temperature in cellular processes.
- Utilizing chemically skinned muscle fibers for precise measurements.
Purpose:
- To determine the quantitative effect of temperature variations on the calcium-induced calcium release (CICR) rate.
- To understand the physiological implications of temperature on muscle function.
Summary:
- CICR rates were measured in guinea pig extensor digitorum longus muscles at temperatures ranging from 20 to 40 degrees C.
- Results showed a logarithmic acceleration of CICR rate with increasing temperature.
- The study employed Endo's method with chemically skinned fibers.
Impact:
- Findings highlight the importance of patient body cooling to manage metabolism.
- Suggests therapeutic hypothermia can mitigate accelerated CICR rates.
- Provides insights into temperature-dependent muscle excitation-contraction coupling.