Credit: THE UNIVERSITY OF TEXAS HEALTH SCIENCE CENTER AT HOUSTON/SCIENCE PHOTO LIBRARY

Caption: Heart cell. Fluorescence microscopy of a cultured adult heart cell, showing calcium sparking and ion flux. The cell has dedifferentiated and regressed to a foetal form, which is thought to happen in cardiac ischemia. A fluorescent probe shows waves of calcium ion flux (black) that controls the heartbeat, in this case irregular flux that can be studied as part of research into cardiac ischemia. This cell culture was prepared from heart tissue from a rat.

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Keywords: beating, biological, biology, black-and-white, calcium, cardiac, cardiac ischemia, cardiomyocyte, cell, cells, cellular, fluorescence, fluorescent, fluorescing, flux, heart, heartbeat, ion, ions, mammal, medical, medicine, microscopy, monochrome, muscle, myocyte, probe, rat, real-time, research

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Heart cell, fluorescence microscopy

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