new skin approximately every four weeks, a new gut
lining every few days and a staggering 2 million new
red blood cells every second.
2. Pearly whites – Researchers discovered stem
cells in the dental pulp of human teeth (DPSCs) in
2000. As time goes on, we continue to find them
lurking in new parts of the body.
3. Skin on demand – Doctors have used skin stem
cells to grow entire sheets of epidermis in the lab,
only with no hairs or sweat glands. This skin can be
used as grafts for patients with severe burns.
4. Stem cell bombshell – Carbon-14 produced by
Cold War nuclear bomb testing has enabled
researchers to determine that the heart can
regenerate itself (very slowly) thanks to stem cells.
5. Lifesavers – In the last 20 years, more than
20,000 patients have received umbilical cord blood
transplants – for the most part treating leukaemia
and blood disorders in children.
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