ameloblast

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ameloblast

[′am·ə·lō‚blast]
(embryology)
One of the columnar cells of the enamel organ that form dental enamel in developing teeth.
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19) The role of ameloblastin is less clear, but it has been found to have functions in the adhesion and control of ameloblasts differentiation.
Deficiencies in magnesium can result in changes in ameloblasts and odontoblasts as well as hypoplasia of enamel and dentin.
2009) Ctip2/Bcl11b controls ameloblast formation during mammalian odontogenesis.
8) It has also been recently shown that since exposure to fluoride can inhibit protein synthesis, fluoride may therefore induce endoplasmic reticulum stress in ameloblasts responsible for dental enamel formation.
This process is controlled by ameloblasts, which secrete an extracellular protein matrix and provide a gel scaffold to support apatitic crystal growth (Fincham & Simmer 1997).
Placoid scales develop in the upper layer of the dermis as dermal papillae (scale primordia), which eventually differentiate into an innermost dental papilla, a layer of odontoblasts that secrete dentine, and a layer of ameloblasts that secrete enamel (Kemp 1999).
Second, the interference by TCDD with the formative stage of tooth development--that is, the function of secretory ameloblasts and odontoblasts--results in delayed or defective mineralization of the molar teeth (Gao et al.
In marsupials, tubules are described as hollow spaces formed by the course of ameloblasts, occurring within or outside of prisms, and sometimes continuous with dentine tubules across the enamel-dentine junction (Boyde and Lester, 1967).
Its production begins with a matrix of amelogenin, produced by cells called ameloblasts, along with the less abudant protein enamelin.
Few studies have shown that altered endocrine function during morpho-differentiation may affect the size and shape of the tooth without impairing the function of ameloblasts and odontoblasts.
Also, its presence in mesenchyme will result in pre- odontoblasts and odontoblasts (35) Stages of tooth Reported or related functions development in mice Dental lamina (E11) Bud (E12, E13-5,5) Cap (E14, E15-5,5) Jag2 apparently regulates apoptosis levels mediated by enamel node and tooth morphogenesis (14) Bell (E16,5-E18,5) Jag2 is involved in odontoblasts and ameloblasts differentiation and in the subsequent deposit of matrix of enamel and dentin (14)