Genetics

What can be done to prevent another CRISPR crisis?

The public announcement last fall from China regarding gene editing on human embryos, conducted without the benefit of scientific review or ethical debate, was met with worldwide disdain. It also has raised global concerns ...

Genetics

Famous cancer-fighting gene also protects against birth defects

New research has revealed how the famous tumour suppressor gene p53 is surprisingly critical for development of the neural tube in female embryos. This is important because healthy development of the neural tube is needed ...

Obstetrics & gynaecology

Artificial intelligence approach optimizes embryo selection for IVF

A new artificial intelligence approach by Weill Cornell Medicine investigators can identify with a great degree of accuracy whether a 5-day-old, in vitro fertilized human embryo has a high potential to progress to a successful ...

Genetics

Are mosaic embryos the 'dark horse' of IVF?

Not every embryo contains 46 perfect chromosomes. Some have more, others have fewer. The result is a common abnormality known as aneuploidy, which occurs in as many as 80 percent of human embryos.

Medical research

Japan okays research using human cells in animals

Japan has given the green light to a controversial research process involving implanting animals with human stem cells that could eventually help grow human organs for transplant inside animal hosts.

Obstetrics & gynaecology

Making better embryos

One out of every six Canadian couples experiences infertility. Some resort to in vitro fertilization. But the embryos obtained through this technique often have defects. In a study published today in the journal Current Biology, ...

Obstetrics & gynaecology

Considering using IVF to have a baby? Here's what you need to know

If it's not you, perhaps it's someone you know. You don't look infertile, you don't feel infertile, but after many months (or years) of trying to start a family, followed by several months of monitoring your cycle in a fertility ...

Medical research

Zebrafish useful to model ALS-linked mutations

Scientists from the University of Bath have shown that the zebrafish is a useful model to study a molecule called Rnasel-1, a counterpart to human Angiogenin, a molecule linked to the neurodegenerative disease ALS (Amyotrophic ...

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Embryo

An embryo (irregularly from Greek: ἔμβρυον, plural ἔμβρυα, lit. "that which grows," from en- "in" + bryein "to swell, be full"; the proper Latinate form would be embryum) is a multicellular diploid eukaryote in its earliest stage of development, from the time of first cell division until birth, hatching, or germination. In humans, it is called an embryo until about eight weeks after fertilization (i.e. ten weeks LMP), and from then it is instead called a fetus.

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