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Biology

Regenerative Capacity of the Human Liver

Quick fact

In a partial hepatectomy, removing two-thirds of the liver triggers a dramatic regenerative response: the remaining cells re-enter the cell cycle, and within about two weeks the liver regains its original mass and function.

Why this is interesting

Your liver can grow back to its full size even if you lose up to 70% of it. But what signals tell the liver cells to start multiplying?