Organs that can regenerate have fascinated researchers for decades. Learn what scientists know about the regeneration of human and animal organs.
“Liver regeneration […] has fascinated clinicians, surgeons, and scientists who have observed this apparently supernatural process and studied its mechanisms for many years,” write a group ofThough the liver is most famous for regeneration and recovery, other cells, tissues and organs go through their own regular renewal; these parts of ourrefers to the biological process through which living organisms, tissues or cells replace or repair damaged or lost body parts or structures.
In addition to the liver cells, skin cells frequently replace themselves over time. Specifically, the epidermis, or top layer of the skin, does so regularly over a time span of around 40 to 56 days,that the kidneys, for example, can also regenerate to an extent. Stem cells in the kidney can form new kidney cells, but not to the same degree as in the liver.
Zheng was part of a team that discovered a “housekeeping” method whereby the kidneys’ proximal tubule cells – which make up a large portion of the kidney’s mass – are in a constant state of self-renewal.
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