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首页> 外文期刊>Journal of Crystal Growth >Alterations in mineral properties of zebrafish skeletal bone induced by liliput~(dtc232) gene mutation
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Alterations in mineral properties of zebrafish skeletal bone induced by liliput~(dtc232) gene mutation

机译:liliput〜(dtc232)基因突变诱发斑马鱼骨骼的矿物质特性变化

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The alterations of mineral properties of bone by gene mutation in the zebrafish, which is associated with abnormal bone mineralization and bone diseases, were reported for the first time in this paper. Transmission electron microscope (TEM), Fourier transform infrared microspectroscopy (FTIRM) and thermogravimetric analysis (TGA) were used to investigate the changes in the mineral. Significant variations of the morphologies of the minerals and the mineral/matrix ratio after liliput~(dtc232) (lil) gene mutation have been observed. The morphologies of the minerals, examined by TEM, revealed that the mutated mineral was in bigger size and the shape was block shaped but not plate shaped. The results of FTIRM indicated that the lil mutant zebrafish skeleton exhibited a greater mineral/matrix ratio (phosphate/matrix = 4.86 +-0.28) than that of wild-type zebrafish bone (phosphate/matrix = 4.17 +-0.67), which was confirmed by TGA analysis. Furthermore, the mineral of lil bone became less mature and crystalline with more ion substitutions. And the selected areas electron diffraction (SAED) patterns showed that the main crystal phases of the two type fishes were both hydroxyapatite. In addition, we have discussed the relationship among the mineral properties, nanomechanical properties and biomineralization process.
机译:首次报道了斑马鱼中基因突变引起的骨骼矿物质特性的改变,这与异常的骨骼矿化和骨骼疾病有关。用透射电子显微镜(TEM),傅里叶变换红外光谱(FTIRM)和热重分析(TGA)研究矿物中的变化。观察到liliput〜(dtc232)(lil)基因突变后矿物质的形态和矿物质/基质比率的显着变化。 TEM观察到的矿物形态表明,突变的矿物较大,形状为块状而不是板状。 FTIRM结果表明,与野生型斑马鱼骨骼(磷酸盐/基质= 4.17 + -0.67)相比,lil突变斑马鱼骨骼具有更高的矿物质/基质比(磷酸盐/基质= 4.86 + -0.28)。通过TGA分析。此外,小骨的矿物质变得不那么成熟,并且具有更多的离子取代晶体。选定区域的电子衍射(SAED)图谱表明,两种鱼类的主要晶相均为羟基磷灰石。此外,我们讨论了矿物特性,纳米机械特性与生物矿化过程之间的关系。

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