In the four years since the start of an ambitious project to save the northern white rhino from extinction, the BioRescue consortium has made significant progress towards its ultimate aim. Using advanced assisted reproduction ...
Plants & Animals
Jul 17, 2023
0
3
At the moment of fertilization, the genes in the fertilizing sperm and egg are switched off. For a new embryo to develop, they must be switched on—but how?
Cell & Microbiology
Oct 3, 2022
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21
In humans, a fertilized egg is no guarantee of reproductive success. Most embryos stop developing and perish within days of fertilization, usually because they have an abnormal number of chromosomes. Now, researchers at Columbia ...
Cell & Microbiology
Jul 19, 2022
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47
Since 1978 when the first test tube baby was born, in vitro fertilization (IVF) has become a reasonable option for couples that have trouble getting pregnant. Originally developed to help women with obstructed tubes, the ...
Biotechnology
Dec 2, 2021
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24
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
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1034
A calf was born from an embryo lacking cells which form a large part of the placenta, providing new insight into the regenerative capacity of mammalian embryos.
Biochemistry
Feb 7, 2020
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5
The basics of conception are familiar to any high school freshman biology student, yet scientists have yet to find the initial molecular mechanisms that set off the cascade of events that form a developing embryo.
Cell & Microbiology
Sep 23, 2013
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0
German researchers have demonstrated for the first time why the molecular cocktail responsible for generating stem cells works. Sox2 and Oct4 are proteins whose effect on cells resembles that of an eraser: They remove all ...
Cell & Microbiology
Aug 19, 2013
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0
Scientists at the Danish Stem Cell Center, DanStem, at the University of Copenhagen have discovered that they can make embryonic stem cells regress to a stage of development where they are able to make placenta cells as well ...
Cell & Microbiology
Jun 6, 2013
0
0
Researchers from Huntsman Cancer Institute (HCI) at the University of Utah have discovered that while the genes provided by the father arrive at fertilization pre-programmed to the state needed by the embryo, the genes provided ...
Cell & Microbiology
May 9, 2013
0
0
