From the article you linked:

“If I could give [them] -10^100 stars I would.”

What is the point? Before performing the research, there would be no reason to believe that their results would disagree with previous studies—and the fact that it does can be important in and of itself—suggesting either a misinterpretation of their data (the mice’s improvement could be evident of something…

Actually, the IAA held a conference on this subject earlier this year: www.pdc2015.org