ɪf ˌɛsˌeɪtʃˈeɪtʃ ɪz ɪnˈæktᵻvˌeɪɾᵻd wɪðˌɪn ðɪ ˌɛfpˈiː ɹˈiːdʒən ænd ˈæktᵻvˌeɪɾᵻd ɪn ˈʌðɚ ɹˈiːdʒənz ʌvðə spˈaɪnəl kˈoːɹd sˈʌtʃ ɐz ðə dˌiːbˌiːˈɛks ɔːɹ pˈiː ˌɛmˈɛn dəmˈeɪnz, ɡlɪoʊdʒˈɛnᵻsˌɪs ɪz kˈɑːmpɹəmˌaɪzd.
If Shh is inactivated within the FP region and activated in other regions of the spinal cord such as the Dbx or pMN domains, gliogenesis is compromised.