查询词典 fluoride

Babies who are exposed to fluoride have a higher risk of getting dental fluorosis, which is a permanent tooth defect arising when fluoride damages the cells which form the teeth.

谁接触到氟宝宝有氟斑牙的获得较高的风险，这是一个永久性的牙齿缺损时因氟化物破坏了细胞构成的牙齿。

Mao Ling Duan said that although the human body can be from day-to-day diet to fluoride intake, and intake hard enough, the development of early childhood tooth growth will be affected, so early childhood development in the permanent tooth germ plus if the participation of fluoride Heng Calcified teeth, the permanent teeth grow in the future will be more acid-resistant.

段茂玲表示，人体虽可自日常饮食中摄取到氟，却难足量摄取，对发育中的幼儿牙齿生长会有影响，所以，幼儿发育中的恒牙牙胚若有外加的氟化物参与恒牙钙化，未来生长出来的恒牙会更耐酸。

They are polytetrafluoroethylene, polyvinylidene fluoride and polyvinyl fluoride.

分别是聚四氟乙烯、聚偏二氟乙烯和聚氟乙烯。

Some dose of selenium can antagonize the apoptosis and cell cycle of hepatocytes induced by fluoride. Fluoride ; Selenium ; Apoptosis ; Cell cycle

本研究通过培养人肝细胞接触一定剂量氟和硒，探讨氟、硒对人肝细胞凋亡的影响，为进一步探讨氟致肝损伤机理提供有益的资料。1 材料与方法1 。

Methods: The DNA damage was measured after L-02 cell were incubated with 80μg/ml sodium fluoride, 1.73μg/ml selenium, 80μg/ml sodium fluoride and 1.73μg/ml selenium using Single Cell Electrophosis respectively.

采用80μg/ml氟化钠、1.73μg/ml亚硒酸钠以及80μg/ml氟化钠和1.73μg/ml亚硒酸钠对培养的L-02细胞进行染毒，24小时后用单细胞凝胶电泳技术检测各组L-02细胞DNA损伤情况。

Objective To investigate the role of oxidative stress on renal injury induced by fluoride and the expression of Bcl-2 on the oxidative stress of renal tubular cells exposed to sodium fluoride at different concentration.

摘要目的观察不同染氟条件下大鼠肾小管上皮细胞氧化应激能力变化及Bcl-2 在氧化应激时的表达。

The results indicated that treatment of the cells with sodium fluoride 10^(-7-10^(-3)molL^(-1) up-regulated the expression of osteocalcin gene in a dose-dependent manner. Furthermore, 5×10^(-4) molL^(-1) sodium fluoride treatment showed a maximal stimulation, which was almost 30 times higher than the control.

各浓度NaF均能刺激体外培养成骨细胞OCN基因的表达呈剂量依赖关系，当浓度为5×10^(-4)molL^(-1)时OCN基因表达量的增加最为明显，约为对照组的30倍。

Sodium fluoride and sodium monofluorophosphate dentifriceF 1.450 mg/L in reversal of early caries were better than non-fluoride one.

2种氟浓度1 450 mg/L的牙膏与无氟牙膏比较，具有明显的抑制牙釉质光滑面早期龋损脱矿的作用。

Methods After L-02 cells were incubated with 40, 80, and 160μg/ml sodium fluoride for 24 hours, the cell survival rate, the level of P53 protein and mRNA expression was assessed by MTT, Western blot and RT-PCR analysis respectively. The cell survival rate in L-02 cells treated by high concentration of fluoride was significantly lower than that in the control group.

方法］对体外培养的人胚肝细胞染毒氟化钠40、80、160μg/ml 24h后，分别采用MTT试验、蛋白印迹技术和逆转录－聚合酶链式反应方法检测人胚肝细胞存活率、P53蛋白和mRNA水平。

Primary cultured rat hepatocytes were cultured with various concentrations of sodium fluoride for 24 hours to study the toxicity and possible mechanism induced by fluoride from morphological, enzymological and biochemical changes.

收集细胞培养上清液，测定ALT和AST活性和MDA含量。用上述指标来评价氟化钠对肝细胞的毒性作用及其可能机制。

We are forbidden from giving money to these shoeless, skinny children, as this will perpetuate begging.

向光着脚，骨瘦如柴的孩子施舍是不可以的，因为要招来无休无止的乞讨。

It would be hard not to fall victim to some sharpeyed policeman.

要想不被某个目光锐利的警察抓到，谈何容易。