In humans, pregnancy lasts around nine months. In mice, only 20 days, and in rhinoceroses, as long as 17 months. Although many mammalian species go through the same stages during embryo development, the speed of development ...
Plants & Animals
Jun 20, 2023
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17
Scientists have used stem cells to create structures that resemble human embryos in the lab, in a first that has prompted calls for stricter regulation in the rapidly advancing field.
Biotechnology
Jun 20, 2023
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Researchers have created synthetic human embryos using stem cells, according to media reports. Remarkably, these embryos have reportedly been created from embryonic stem cells, meaning they do not require sperm and ova.
Cell & Microbiology
Jun 16, 2023
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43
Heat-stressed fish embryos release chemical signals that change the appearance, behavior, and development of fish embryos that were not heat stressed, according to a study. Stress during development can change how an embryo ...
Plants & Animals
May 24, 2023
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16
Scientists have known that when a mouse embryo is developing, the cells that will become its spine and muscles switch specific genes on and off repeatedly, in a synchronous fashion. However, there are deep mysteries about ...
Cell & Microbiology
May 2, 2023
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222
RNA, specifically mRNA, has enjoyed a bit of publicity recently as the main component of the COVID-19 vaccines.
Cell & Microbiology
Apr 21, 2023
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82
RIKEN researchers have shed new light on the roles two protein complexes play in the enigmatic process of turning off one X chromosome in female mammals. This finding could help researchers discover how certain cancers occur ...
Cell & Microbiology
Apr 19, 2023
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29
Human embryo development and early organ formation remain largely unexplored due to ethical issues surrounding the use of embryos for research as well as limited availability of materials to study. In a paper published April ...
Cell & Microbiology
Apr 6, 2023
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15
The Third International Summit on Human Genome Editing, a three-day conference organized by the Royal Society, the U.K. Academy of Medical Sciences, the U.S. National Academies of Sciences and Medicine and The World Academy ...
Biotechnology
Mar 8, 2023
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11
PET—the plastic used to make bottles, for example—is ubiquitous in our natural environment. In a joint study, scientists from Leipzig University and the Helmholtz Centre for Environmental Research (UFZ) investigated the ...
Biochemistry
Mar 8, 2023
0
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