Cell Proliferation Kinetics of the Internal Enamel Epithelium of Mouse Incisors

Abstract

SYNOPSIS IN INTERLINGUA

CINETICA DEL PROLIFERATION CELLULAR IN LE EPITHELIO INTERO-ADAMANTIN DEL INCISORES DE MUSES.-Un analyse cinetic del proliferation de preameloblastos in le incisores de muses esseva effectuate a base de autoradiographias post le administration a thymidina a tritium. Le minime tempore generatori estimate a base del curva de mitosis esseva 14,2 horas. Le minime tempore del synthese de acido deoxyribonucleic, le minime tempore postsynthetic, le minime tempore mitotic e le minime tempore presynthetic esseva 5,5, 0,82, 0,5, e 7,4 horas, respectivemente. Le total tempore generatori medie de 24,0 horas esseva calculate a base del proportion de tempore medie del synthese de acido deoxyrobonucleic (7,2 horas) al indice de marcage (0,30). Esseva trovate que durante le processo de maturation preameloblastic quatro successive divisiones cellular occurre ante que le cellulas deveni ameloblastos functional. Le minime tempore de transito del preameloblastos es approximativemente 56,8 horas.

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