There was an animated discussion exploring the results and discussions. While effect of neurogenesis in animal hippocampal cells is well explored, this in vitro study focused on neurogenesis from the multipotent, human hippocampal progenitor cell line HPC03A/07.
During the discussion the main thesis of the paper about human hippocampal neurogenesis did not seem to follow from the data. Perhaps the supplementary data provides clarity and needs to be explored.