Related topics: stem cells · cells · genes · skin cancer · skin cells

Tattoos mark the spot—for surgery—then disappear

Tattoos aren't just for body art. They can have medical applications, too. Doctors are using them on patients to mark an area for future treatment—particularly for non-melanoma skin cancer such as basal cell carcinoma—but ...

What we've learned about the nucleolus since you left school

The size of a cell's nucleolus may reveal how long that cell, or even the organism that cell belongs to, will live. Over the past few years, researchers have been piecing together an unexpected link between aging and an organelle ...

Think chimpanzee beds are dirtier than human ones? Think again

Chimpanzees (Pan troglodytes) appear to keep tidier sleeping arrangements than humans do. That's one finding of a recent study that evaluated the microbes and arthropods found in the treetop beds that chimpanzees make each ...

How do the chemicals in sunscreen protect our skin from damage?

Not so long ago, people like my Aunt Muriel thought of sunburn as a necessary evil on the way to a "good base tan." She used to slather on the baby oil while using a large reflector to bake away. Aunt Muriel's mantra when ...

Scientists grow mouse eggs from stem cells in lab

Japanese scientists said Monday they had grown mouse eggs entirely in the lab, then fertilised them to yield fertile offspring, a scientific first cautiously hailed by experts in human reproduction.

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