When making a soup, maintaining the correct balance of liquid and salt is key. Similarly, maintaining the balance of water and electrolytes is an important physiological process in the human body, and disruption of this process can have serious consequences. The kidneys regulate the amount of water and solutes taken in and excreted from the body through a process known as urine concentration. Recently, researchers in Japan have shed new light on the molecular mechanisms underlying this process.
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Source: Phys.org