Humans have around 30 trillion cells in our adult bodies. Amazingly, each of these cells came from a handful of about 100 ...

As the agency evaluates the utility of human embryonic stem cells in research, scientists warn that restricting the cells ...

The discovery of a gene essential to early embryonic development sheds light on the preliminary stages of human placenta formation. A team led by scientists from the University of California San Diego ...

WASHINGTON -- Cells extracted from a human embryo have been nurtured into tiny blood vessels, a key step toward someday using embryonic stem cells to aid ailing hearts or fix blocked arteries, ...

Researchers have succeeded in generating high-quality feline embryonic stem cells using sperm and eggs from testes and ovaries discarded during sterilization surgery. As different as they may seem, ...

Thomson and most other researchers hope that they'll eventually be able to distill the secret of embryonic stem cells - that is, their ability to become virtually every kind of tissue in the body - ...

When you were first conceived, you were a single cell. From this basic fact, we can extrapolate a few things, most especially that all the cells that make up your body today came (indirectly) from ...

BALTIMORE -- Biotech executive C. Randal Mills flies a lot, and he's learned what to expect. Almost as likely as getting those tiny bags of peanuts or pretzels, someone in a neighboring seat will ask, ...

File this under unexpectedly cool: organs you don’t harvest, but instead print using an honest-to-goodness printer, just as you might words on paper, except in this case, the “words” are actual stem ...