Stories about: stem cells  

The cells appear to move in highly complex ways

They work in environments similar to the natural one

They are in charge of regenerating the skin layer

US regulators give leeway to researchers

They worked amazing feats on animal models

Human embryonic stem cells have been used for the job

When given the right conditions

The embryonic variety has been used

The innovation could replace skin grafts

Embryonic stem cells are especially sensitive to them

They will outfit future replacement organs

Fake positives often occur

It may soon be used to heal heart damage

The method could lead to improved therapies for the disease

Their aim is to feed "heart patches"

The stem cells only glow when they turn into RBCs

The measure may come too late, though