Search Results for: china

Paper on 1st use of CRISPR in normal human embryos: problems remain

CRISPR-human-embryo-Tang-et-al

The first report of the use of CRISPR gene editing in normal human embryos was published today as a short paper from a team in China. There have been rumors for over a year that more CRISPR human embryo papers were coming including some using normal embryos. Here’s one and we can now expect more even […]

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Grading my stem cell predictions for 2016: how’d I do?

stem-cell-predictions

Below are the 2016 stem cell predictions I made last year and their status now color-coded near year’s end. Green is right, orange is mixed bag, and red is flat out wrong. Overall, I did better than most past years with only having entirely blown it on four. Stay tuned later this week for my 2017 predictions,

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Samantha Yammine: Multiple filters for stem cell research at Canadian stem cell conference

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By Samantha Yammine, PhD Candidate in Derek van der Kooy’s lab at the University of Toronto. See tweets live from #TMM2016 via @SamanthaZY here. Last week, 430 Canadian scientists, trainees, industry professionals, science communicators and international guests gathered in the picturesque ski town of Whistler, British Columbia for the annual Till & McCulloch meeting (TMM).

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Negative stem cell clinic outcomes include 3 blinded women

Michael-Miller-MD-PhD-e1473364751156

What can go wrong with unapproved stem cell clinic offerings? The answer including from presentations at the FDA today turns out to be very serious, negative results right here in the U.S. Thomas Albini, MD gave a talk entitled,  “Severe Visual Loss After Intravitreal Injection of Autologous Adipose Tissue-derived Stem Cells for Age-related Macular Degeneration”.

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3 more FDA warning letters to stem cell cosmetics makers

Resurgent-Stem-Cell-Firming-Activator

The FDA continues to be very active with warning letters against makers of stem cell cosmetics even as it has been relatively dormant on stem cell clinics. You can read past posts on the long series of warning letters to manufacturers of stem cell cosmetic cream. Three new warning letters to stem cell cream makers

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Important Rasko team paper on global distribution of stem cell clinics

stem-cell-clinics-map-Rasko

Last week a team led by John Rasko of the University of Sydney published a very important stem cell clinic study also in Cell Stem Cell. Thus, there have now been two new reports on the state of the stem cell clinic industry both here in the U.S. and more globally. Leigh Turner and I published

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Nature Biotechnology looking at NgAgo paper amidst reproducibility concerns

NgAgo-China-newspaper

When potentially game changing new technologies are reported such as NgAgo gene editing, both scientists and the public get excited, but especially if such new reports stem from a single paper it is wise to take a cautious approach for a while. The key question is whether the new findings will turn out to be

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Gaetan Burgio New Data & Theory on NgAgo versus CRISPR

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By Gaetan Burgio CRISPR/Cas9 genome editing has dramatically changed our way to perform biological experiments. While highly efficient and easy to use, one limitation with CRISPR/Cas9 mediated genome editing technology is the occurrence of off-target effects and the restriction of the PAM recognition sequence. Many modifications from the original system have been proposed to improve

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Controversy over CRISPR challenger NgAgo irreproducibility reported

Fang-Shimin-方是民

Does the new gene editing method NgAgo work or not? If not, what happened? The answers to both questions seem to depend on who you ask and what you read. As much as CRISPR has been the revolutionary in the genetic modification technology arena over past methods, could CRISPR itself in the next few years

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