Related Experiment Video

Updated: Jul 20, 2026

Voltage and Calcium Dual Channel Optical Mapping of Cultured HL-1 Atrial Myocyte Monolayer
08:25

Voltage and Calcium Dual Channel Optical Mapping of Cultured HL-1 Atrial Myocyte Monolayer

Published on: March 23, 2015

The L-type calcium channel in the heart: the beat goes on

Ilona Bodi1, Gabor Mikala, Sheryl E Koch

  • 1Institute of Molecular Pharmacology and Biophysics, University of Cincinnati College of Medicine, Ohio 45267, USA.

The Journal of Clinical Investigation
|December 3, 2005
PubMed

Insights

Calcium (Ca2+) is essential for heart function. This review explores how Ca2+ and specific channels contribute to heart disease, impacting cardiac hypertrophy, heart failure, and sudden death.

Area of Science:

  • Cardiology
  • Molecular Biology
  • Physiology

Background:

  • Sydney Ringer's 120-year-old experiment demonstrated the necessity of calcium (Ca2+) for heartbeats.
  • The role of Ca2+ in cardiac function and disease is a continually expanding area of research.

Purpose of the Study:

  • To review the critical role of Ca2+ in normal cardiac function.
  • To examine the involvement of Ca2+ and L-type voltage-dependent Ca2+ channels in the progression of heart disease.

Main Methods:

  • Literature review of studies on calcium's role in cardiac physiology and pathology.
  • Analysis of research linking L-type voltage-dependent Ca2+ channels to cardiac disease mechanisms.

Main Results:

  • Ca2+ is indispensable for myocardial contractility and electrical activity.
  • Dysregulation of Ca2+ handling is implicated in cardiac hypertrophy, heart failure, and arrhythmias.

Conclusions:

  • Calcium ions and L-type voltage-dependent Ca2+ channels are central players in maintaining cardiac health.
  • Understanding these roles is crucial for developing therapeutic strategies for heart disease.

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