Over the course of 40 days, the cells within the organoid self-organized into structures that resembled the early stages of brain and spinal cord development in a human embryo. This included the ...

Why Trust Us? Scientists have officially grown a notochord—the tissues that act as the “GPS for the developing embryo” by guiding the formation of the spine and nervous system. Previous ...

Acute spinal cord injury can be treated by transplanting human embryonic stem cell without any harm, according to a recent study by UC Irvine researchers. UCI neurobiologist Hans Keirstead and ...

The fusion of sperm and egg gametes during human fertilization establishes a diploid zygote and initiates a series of cell divisions that result in a multicellular embryo. The blastocyst stage is ...

The cells on the inside layer of this very early embryo can make all of the cell ... in the pancreas), or enable people paralysed by spinal injuries to walk again by re-growing spinal nerves.

Many four-legged animals go through embryonic stages that have similar features -- gill arches, a notochord, segmentation, and paddle-like limb buds -- as they develop into different adults.

Francis Crick Institute scientists developed a rudimentary human spine via stem cells in a laboratory ... not an actual embryo. Still, this minuscule structure contained all the bone stem cells ...