Provided are compositions, articles and methods that relate to promoting neurogenesis or neuroregeneration in mammalian nervous system. Embodiments relate to use of groups of compounds that contain Crizotinib (Cri), Flurbiprofen, Lithium Chloride (Li), Vitamin C (VC), Ceritinib (Cer) or Pirfenidone (PFD). In certain implementations glial cells are converted into functional neurons.