کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5891179 1153268 2013 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Osteopetrosis, osteopetrorickets and hypophosphatemic rickets differentially affect dentin and enamel mineralization
ترجمه فارسی عنوان
استئوتوپتروز، استئوتروپریکیت و ریفیت هیپوفسفاتیک به طور معنی داری بر کانی سازی دنتین و مینای دندان تاثیر می گذارد
موضوعات مرتبط
علوم زیستی و بیوفناوری بیوشیمی، ژنتیک و زیست شناسی مولکولی زیست شناسی تکاملی
چکیده انگلیسی

Osteopetrosis (OP) is an inherited disorder of defective bone resorption, which can be accompanied by impaired skeletal mineralization, a phenotype termed osteopetrorickets (OPR). Since individuals with dysfunctional osteoclasts often develop osteomyelitis of the jaw, we have analyzed, if dentin and enamel mineralization are differentially affected in OP and OPR. Therefore, we have applied non-decalcified histology and quantitative backscattered electron imaging (qBEI) to compare the dental phenotypes of Src−/−, oc/oc and Hyp−/0 mice, which serve as models for OP, OPR and hypophosphatemic rickets, respectively. While both, Src−/− and oc/oc mice, were characterized by defects of molar root formation, only oc/oc mice displayed a severe defect of dentin mineralization, similar to Hyp−/0 mice. Most importantly, while enamel thickness was not affected in either mouse model, the calcium content within the enamel phase was significantly reduced in oc/oc, but not in Src−/− or Hyp−/0 mice. Taken together, these data demonstrate that dentin and enamel mineralization are differentially affected in Src−/− and oc/oc mice. Moreover, since defects of dental mineralization may trigger premature tooth decay and thereby osteomyelitis of the jaw, they further underscore the importance of discriminating between OP and OPR in the respective individuals.


► Molar root formation is severely impaired in mouse models of osteopetrosis (Src−/−) and osteopetrorickets (oc/oc).
► Dentin mineralization in oc/oc mice is similarly disturbed as in Hyp−/0 mice, a model of hypophosphatemic rickets.
► Only oc/oc mice, but not Src−/− and Hyp−/0 mice, display enamel hypomineralization.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Bone - Volume 53, Issue 1, March 2013, Pages 25–33