Search Results for: human embryo

STAP NEW DATA

BS1

This is a crowdsource page for people who want to post their findings on their attempts to validate the STAP stem cell ( STAP細胞) method.  I’m going to color successful or even moderately encouraging reports green and failures/discouraging results in red. *For those with longer attention spans, see some additional important considerations for this crowdsourcing effort at …

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In a pickle over STAP stem cells: main reasons for skepticism

in-a-pickle

If you take an ordinary cucumber and soak it in a mild acid solution of vinegar for a few weeks you get a pickle, which is where we find STAP stem cells. Recently, some scientists reported in Nature that if you take ordinary cells and soak them in a mild acid solution for 30 minutes, …

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Interview with Charles Vacanti on STAP Cells: Link to Spore Stem Cells & More

Obokata-FIg.-2a

The recent publication of two Nature papers by a team in part led by Dr. Charles Vacanti on acid treatment produced stem cells (so-called STAP stem cells) has been a blockbuster story in the stem cell field and has grabbed major global media attention as well. For background my review of the paper here and more thoughts here. Many …

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More thoughts from STAP acid reprogramming stem cell paper

The STAP papers on making iPS like cells using acid treatment of differentiated cells really has people talking. See embryo at right made from GFP reporter STAP cells that glow green. As I said in my review of the papers yesterday, there are still some critical things we do not know about STAP cells and I …

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Review of Obokata STAP cells Nature papers

STAP-stem-cells

In two Nature papers (here and here) published today researchers report the astounding finding of reprogramming differentiated cells back to a pluripotent or even totipotent state simply by exposing the cells to extreme environmental stress, creating cells they called STAP cells. Update: see more thoughts on STAP stem cells here. STAP cells: stressing the cell …

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Review of New Yamanaka Paper on Defective iPS cells

A team led by Shinya Yamanaka has published a new study reporting analysis of defective induced pluripotent stem (iPS) cells in the journal PNAS. Part of what I liked so much about this paper is that it tackled a very real, but controversial area of stem cell research. By this I mean the reality that a …

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STEM CELLS MEET PLAY DOH!

Guest Post By Sai Vemula Space travel to Mars. Robot zoo. Nano-Sumo. 3D printers. Dissected squids. The Bay Area Science Festival, held this year in San Francisco this weekend, attracts more than 30,000 visitors each year, with parents and kids of all ages who are treated to over 150 interactive experiments and demonstrations ranging from chemical …

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