Blood may seem like a simple fluid, but its chemistry is complex. When too much potassium, for instance, accumulates in the bloodstream, patients may experience deadly irregular heart rhythms.

HHMI researchers have discovered that a specific type of calcium channel—a pore-like protein that is nestled in the cell membrane and controls the flow of calcium into the cell—regulates the ...

Proceedings of the National Academy of Sciences of the United States of America, Vol. 89, No. 10 (May 15, 1992), pp. 4417-4421 (5 pages) It is universally believed that the removal of external sodium ...

The process of expressing a wide variety of voltage-gated and ligand-gated ion channels enables nociceptors to transduce receptor potential into single action potentials or multiple action potentials.

When you have atrial fibrillation, the two upper chambers of your heart (atria) don't beat in sync with the two lower chambers (ventricles). This makes your heart beat out of rhythm and sometimes very ...

Nat Clin Pract Neurol. 2008;4(3):159-169. Drug Primary clinical use Protective effect during administration in animal models? Effects of withdrawal in EAE Clinical study Phenytoin Treatment of ...