Screenshots from the first real-time video of early embryonic development. Fluorescent markers were used to show the movement of the filaments inside embryonic cells.

Bangkok — Scientists have developed human embryo-like structures without using sperm, an egg or fertilization, offering hope for research on miscarriage and birth defects but also raising fresh ...

Our stem-cell-derived human embryo model offers an ethical and accessible way of peering into this box. It closely mimics the development of a real human embryo, particularly the emergence of its ...

The little clump of cells looked almost like a human embryo. Created from stem cells, without eggs, sperm, or a womb, the embryo model had a yolk sac and a proto-placenta, resembling a state that real ...

For the first time ever, scientists have recorded real-time video of an early stage embryo forming the 'neural tube' that will grow to become its brain, spinal cord and heart ...

The most advanced lab-made human embryo models look like the real thing — they resemble, though don't perfectly replicate, natural embryos about 14 days into development. These lab-made embryo ...

Human embryo replicas have gotten more complex. Here’s what you need to know The lab-engineered models give scientists a look at human development beyond the first week ...

But for human embryo stem cell models, such as the one which we created, research on this is allowed because they are not real human embryos; they are human embryo models.

Dozens of labs around the world are striving to grow models of human embryos to study development, fertility and therapies. They are entering uncharted ethical territory.

So, the methods that generate preimplantation embryo models simultaneously strip them of their full developmental potential. In short, embryo models are not equivalent to real human embryos.

Cambridge University researchers developed the world’s first synthetic human embryo models using stem cells but without using an egg or sperm, which has sparked ethical concerns and questions ...