Replacing teeth and white blood cells, and a wi-fi enabled pacemaker.

  biotech blood_cells medicine pacemaker rats stem_cell_research teeth wi_fi wireless

I realize that some of these stories are kind of old, but in my defense I work a lot.

<p>Scientists at the Tokyo University of Science announced earlier this month that <a href="http://online.wsj.com/article/SB10001424052970203674704574334741892789978.html">they had grown a replacement tooth for an adult lab mouse</a>.  While this doesn’t sound like much given that rodent teeth grow continually through the creature’s life, they accomplished this task by <a href="http://www.pnas.org/content/early/2009/07/31/0902944106.abstract">engineering mouse cells to grow teeth</a> and transplanting them into …
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