News tagged with immunobiology

Making and breaking heterochromatin

To fit the two-meter long DNA molecule into a cell nucleus that is only a few thousandths of a millimetre in size, long sections of the DNA must be strongly compacted. Epigenetic marks maintain these sections, ...

Sep 25, 2012 not rated yet 0

New nerve cells -- even in old age

After birth the brain looses many nerve cells and this continues throughout life - most neurons are formed before birth, after which many excess neurons degenerate. However, there are some cells that are still ...

May 06, 2010 4.3 / 5 (3) 0 | with audio podcast