Ion selectivity is an important property of cell membrane ion channels. For example, potassium ion channels are more permeable to potassium ions than to sodium ions. The mechanism underlying the ready ...

Uptake of potassium by bacteria is regulated by a single protein that senses the concentration of this cation both inside the cell and in the external medium, and controls the expression of the ...

Uptake of potassium by bacteria is regulated by a single protein that senses the concentration of this cation both inside the cell and in the external medium, and controls the expression of the ...

As you read this, a gate made of nothing is causing your heart to race. A vapor barrier is not a door, a valve, or a protein ...

COUPLING between the movements of sodium out of, and potassium into, human erythrocytes was discussed some time ago 1. Although the concept of coupling between the active movements of sodium and ...

It is well established that diets rigidly restricted in sodium content are effective in controlling and preventing ascites and edema formation in patients with cirrhosis of the liver. 11–13 The ...

Resodec, § the exchange resin used in the patients described in this report, is an acrylic polymer of heavy molecular weight, whose carboxylic radicals can readily adsorb and release cations to which ...

Two studies by scientists at the University of Chicago have demonstrated a new way to look into the inner workings of cells—in particular, to track the flow of ions inside the many tiny organelles ...

Many tumors contain lurking immune cells, including T cells that are equipped to attack the cancerous tissue. But the chemistry inside the tumor silences these T cells, allowing the cancer to persist ...