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Electron microscopes are the most powerful type of microscope, capable of distinguishing even individual atoms. However, these microscopes cannot be used to image living cells because the electrons de...
American Association for the Advancement of Science Backs Embryonic Stem Cell Bill, Citing
Embryonic Stem Cell
2007/4/13
10 April 2007，With competing stem cell measures under debate and set for a vote in the U.S. Senate this week, AAAS CEO Alan I. Leshner Monday wrote to Senate Majority Leader Harry Reid (D-Nev.) and al...
Regulation of germline stem cell proliferation downstream of nutrient sensing
stem cell germline nutrient
2006/12/22
6 December 2006，Stem cells have recently attracted significant attention largely due to their potential therapeutic properties, but also because of their role in tumorigenesis and their resemblance, i...
Variations in cyclin D1 levels through the cell cycle determine the proliferative fate of a cell
cyclin D1 cell cycle
2006/12/22
18 December 2006，We present evidence that variations in cyclin D1 levels through the cell cycle are essential for continuing proliferation. Cyclin D1 levels must be high during G1 phase for a cell to ...
Committee Review of Stem-Cell Fraud Finds Editors Followed All Rules, But Urges Revision of Trust-Based Journal Procedures
Stem-Cell publishing
2006/12/15
28 November 2006，In handling fraudulent stem-cell research articles, journal editors went above and beyond existing procedures to try and verify the findings, but in today's competitive publishing env...