The ability to modify the intracellular concentrations of divalent calcium ions is vital to normal cell functioning. In the cells of the cardiac muscle, calcium ions play a crucial role in coupling ...

The transverse tubules (t-tubules) are invaginations of the cell membrane rich in several ion channels and other proteins devoted to the critical task of excitation-contraction coupling in cardiac ...

In the 21st century, human tissue can be generated from stem cells and severed limbs are successfully reattached, while the physiological processes governing life’s most fundamental event—childbirth ...

Exposure to oil can cause severe cardiovascular effects in fish. Experiments provide direct evidence of how phenanthrene, an oil pollutant found in water, air and soil, causes irregular heartbeat and ...