http://www.technologyreview.com/Biotech/19589/
Check that out. 
A viable, reliable cheep source of myostatin buffering still a pipe dream…
Promising but so is gean therapy, it’s a race to see what will come about, either one and Mr. O will be somewhere around 400lbs.
And the Pic from the story is some one’s avatar on t-mag don’t remember the name…