The progression from a round ball of cells to an embryo with a head and a tail is one of the most critical steps in an organism's development. But just how cells first start organizing themselves with directionality along ...
Cell & Microbiology
Jun 21, 2021
0
11
Following fertilization, early plant embryos arise through a rapid initial diversification of their component cell types. As a result, this series of coordinated cell divisions rapidly sculpts the embryo's body plan. The ...
Plants & Animals
Jun 21, 2021
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13
Scientists have identified key molecular events in the developing human embryo between days 7 and 14—one of the most mysterious, yet critical, stages of our development.
Biotechnology
Jun 17, 2021
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143
The "miracle of life" is most obvious at the very beginning: When the fertilized egg cell divides by means of furrows into blastomeres, envelops itself in an amniotic sac, and unfolds to form germ layers. When the blastomeres ...
Cell & Microbiology
Jun 8, 2021
0
122
New guidelines released Wednesday remove a decades-old barrier to stem cell research, recommending that researchers be allowed to grow human embryos longer under limited conditions.
Cell & Microbiology
May 26, 2021
2
13
In vitro fertilization fulfills the wishes of half a million parents each year, yet the fertility treatment leaves plenty of room for improvement. A majority of potential embryos are ruled out for implantation, flagged by ...
Biotechnology
May 25, 2021
0
25
Only one in three fertilizations leads to a successful pregnancy. Many embryos fail to progress beyond early development. Cell biologists at the Max Planck Institute (MPI) for Biophysical Chemistry in Göttingen (Germany), ...
Cell & Microbiology
May 10, 2021
0
1034
In their effort to understand the very earliest stages of life and how they can go wrong, scientists are confronted with ethical issues surrounding the use of human embryos. The use of animal embryos is also subject to restrictions ...
Cell & Microbiology
Apr 23, 2021
1
16
Investigators in China and the United States have injected human stem cells into primate embryos and were able to grow chimeric embryos for a significant period of time—up to 20 days. The research, despite its ethical concerns, ...
Biotechnology
Apr 15, 2021
6
612
Researchers at the Francis Crick Institute have revealed that CRISPR-Cas9 genome editing can lead to unintended mutations at the targeted section of DNA in early human embryos. The work highlights the need for greater awareness ...
Biotechnology
Apr 12, 2021
2
136
