Search Results for: embryonic stem cell

7 tech hurdles to human germline CRISPR

Human-crispr-challenges

Human germline CRISPR raises major bioethical considerations, but what about technical issues? Setting aside the many ethical issue about the general idea of human modification itself, could this really work? Yes in theory it could, but there are some very tough technological challenges that could and likely would cause failures or unacceptable outcomes at many steps […]

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Synthetic embryo or embryo model tech reported in Science: how big is this?

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Can you make a synthetic embryo, also called an embryo model? Developmental biologist Magdalena Zernicka-Goetz has long been on the trail of this seemingly almost uncatchable quarry. With her team’s publication in Science today they took a big step forward on this path even if some major hurdles remain. You can see her discussion of

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UK should freeze mitochondrial replacement as Egli paper ID’s serious problem

Egli-genetic-drift-paper

An important new Cell Stem Cell paper from Dieter Egli’s lab points to an inherent, serious problem with so-called 3-person IVF or mitochondrial replacement technology that warrants putting an immediate hold on all efforts to use it in humans. I have pasted the graphical abstract from the paper below. For years a few of us scientists and

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Perspectives on Pedersen Lab Human-Mouse Chimera Paper

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A new Cell Stem Cell paper by Victoria L. Mascetti and Roger Pedersen on human-mouse chimera modeling is quite interesting and important. I really enjoyed this short paper, but I do have a reservation about one way that it is being interpreted. The authors show that human pluripotent stem cells (hPSC) including induced pluripotent stem cells

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Did NHK Violate Rights of Obokata (小保方 晴子) on STAP?

Obokata-press-conference

The Japanese public broadcasting system, NHK, has been accused by scientist Haruko Obokata of violating her human rights. Obokata was the primary researcher involved in the STAP cell fiasco in which two ultimately retracted Nature papers contained duplicated, plagiarized, and manipulated data. She was certainly not the only researcher on those papers, but overall she

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TGIF: recommended weekend science reads & a jar full of RNA

GMO-spray-Monsanto1

TGIF recommended weekend reads including thought-provoking reading over a beer, glass of wine, or beaker…and what would RNA taste like? Two from Alexey Bersenev The future of human limb bioengineering Translating Cell Therapies: Academic versus Industry model CIRM blog: two cool recent posts Specialized Embryonic Stem Cells Yield Insights into X Chromosome Inactivation Da Mayor and

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