Great question. So, I read the paper in detail last night and it is definitely not on the same level as Jahoda's or Lauster's work! They were simply testing one of Dr Lindner's ideas from back in 2011 to see if it's true. I was actually surprised to find Dr Lindner's papers and patents referenced all over this paper!
They simply tested CTGF to see if it improves hair-inductivity and it did. They never conducted Dr Jahoda's full gene-expression comparison study, which is really disappointing.
So to answer your question: A total gene analysis comparison was NOT conducted (only gene expression of specific markers were investigated), the DP cells cultured were NOT implanted in a foreskin or other assays to see their hair-inducing potential and they were not even cultured as well as Jahoda or Lauster's team! They simply dumped it in a well (3D) and added a whole bunch of chemicals to reduce adhesiveness. Jahoda & Lausters methods are far more delicate with DP cells.
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