نتایج جستجو برای: mmp20
تعداد نتایج: 76 فیلتر نتایج به سال:
Genetic studies have shown that variations in enamel formation genes are associated with caries susceptibility. The aim of this study was to test in vitro whether variants in these genes are associated with dental enamel demineralization in a Streptococcus mutans biofilm model. DNA and enamel samples were obtained from 213 individuals. DNA was extracted from saliva, and 16 single nucleotide pol...
Amelogenesis imperfecta is an abnormal formation of the enamel. This anomaly associated with malformation of proteins, such as ameloblastin, enamelin, tuftelin and amelogenin. A few study report, mutation in the AMELX, ENAM, MMP20 and KLK-4 genes have been found to cause amelogenesis imperfecta. Mutations of AMELX, ENAM, MMP20 and KLK-4 genes will alter the structure of protein, that are essent...
D uring mammalian tooth formation, two proteinases are secreted by ameloblasts: enamelysin (MMP-20) and kallikrein-4 (KLK4). Enamelysin is the early protease. It is expressed by ameloblasts throughout the secretory stage and part of the maturation stage. KLK4 is the late protease; its expression by ameloblasts begins in the transition stage and continues throughout enamel maturation. 5 Expressi...
D uring mammalian tooth formation, two proteinases are secreted by ameloblasts: enamelysin (MMP-20) and kallikrein-4 (KLK4). Enamelysin is the early protease. It is expressed by ameloblasts throughout the secretory stage and part of the maturation stage. KLK4 is the late protease; its expression by ameloblasts begins in the transition stage and continues throughout enamel maturation. 5 Expressi...
Amelogenesis Imperfecta (AI) can be caused by the deficiencies of enamel matrix proteins, molecules responsible for the transportation and secretion of enamel matrix components, and proteases processing enamel matrix proteins. In the present study, we discovered the double deletion of bone morphogenetic protein 2 (Bmp2) and bone morphogenetic protein 4 (Bmp4) in the dental epithelium by K14-cre...
Vertebrate enamel formation is a unique synthesis of the function of highly specialized enamel proteins and their effect on the growth and organization of apatite crystals. Among tetrapods, the physical structure of enamel is highly conserved, while there is a greater variety of enameloid tooth coverings in fish. In the present study, we postulated that in enamel microstructures of similar orga...
Amelogenesis Imperfectas (AIs) are clinically and genetically heterogeneous conditions characterized by a wide range of clinical features. These abnormalities of enamel formation are categorized into three main groups, hypoplastic, hypomaturation and hypocalcified with different modes of inheritance such as autosomal recessive (AR), autosomal dominant (AD) and X-lined recessive (XLR). In spite ...
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