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© Helena Johard 2013
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I have been investigating proteins in the cell membrane of nerve cells and of stem cells from insects and mice. Nerve cells are specialised in signal transmission and build up networks of communicating cells.
Stem cells eg neural stem cells are capable of self-renewal (by cell division) and can differentiate into more specialised cell types, such as neurons. The division and differentiation of stem cells are strictly regulated and can become activated upon injuries.

http://www.helenajohard.com/files/dimgs/thumb_0x200_6_18_317.jpg
Stem Cell Cell Division Project (2009-now)
http://www.helenajohard.com/files/dimgs/thumb_0x200_6_16_96.jpg
Circadian Project (2005-2018)