The contraction-relaxation cycle of the heart is controlled by the sequential rise and fall of the cytosolic calcium concentration. Calcium entry through L-type calcium channels during the action ...

The cytoplasm of eukaryotic cells contains an elaborate filamentous protein meshwork — the cytoskeleton — which comprises three distinct but integrated fibrous polymers: filamentous actin (F ...

The universality of calcium as an intracellular messenger depends on its enormous versatility. Cells have a calcium signalling toolkit with many components that can be mixed and matched to create ...

Many people who have suffered a heart attack subsequently develop life-threatening complications like ventricular fibrillation. Now an international research team from the University of Freiburg's ...