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 ...

Some newly reported clumps of cells growing in lab dishes have been hailed as the closest things to human embryos that scientists have ever made in the lab. These entities are human embryo models — ...

Genomic scientists have revealed new insights into the process of human embryonic development using large-scale, whole-genome sequencing of cells and tissues from adult humans. The study analyzes ...

A team of researchers in the United States and United Kingdom say they have created the world’s first synthetic human embryo-like structures from stem cells, bypassing the need for eggs and sperm.

Researchers have developed a new embryo-like model derived from adult cells that replicates key features of early human development, including the generation of blood cells. University of Pittsburgh ...

Living structures that model early human embryonic development have been generated entirely from cells in the skin. The models mean it should be possible to study infertility, early miscarriage and ...

Researchers have, for the first time, captured real-time 3D images of human embryo implantation, revealing the significant forces embryos exert to burrow into the uterine tissue. This invasive process ...

Your stem cells have just arrived. Now, how do you convert those frozen vials into a thriving, human embryonic stem cell (hESC) research program? Last month I traveled to Wisconsin to get a primer ...

Gene networks in human embryonic stem cells (hESCs) have been found to serve two purposes at once. They maintain pluripotency, and they keep apoptosis, or programmed cell death, on a hair trigger.

Scientists say they could one day help advance the understanding of genetic diseases or the causes of miscarriages Scientists say they could one day help advance the understanding of genetic diseases ...