四环素

The limitation young people parodontitis and the fast progress parodontitis method of treatment selects the tetracyclin textile fiber membrane generally.

局限型青少年牙周炎和快速进展型牙周炎的治疗方法一般选用四环素纤维膜。

The fresh chicken feces were obtained from different age 18 healthy chicken, and were not detectedchlortetracycline. The mixture standard solution of CTC and OTC was added in fresh chicken feces at the concentration of 0.5, 1.0 and 4.0ug/ml respectively. The chicken feces were divided to two groups,one were put in the incubator under photophobic condition; another were under the natural illumination.Samples were collected after 0, 0.5, 1, 2, 3, 5, 7, 9, 12 and 15 days, The concentration of chicken feceswas determined by HPLC. According to the theory of degradation kinetics, we fitted the changed trendof concentrations in chicken feces under different time and studied the degradation characteristics ofchlortetracycline in chicken feces.

选取不同日龄健康鸡18只，实验期新鲜鸡粪，，经检测不含四环素类药物，然后加入金霉素标准液，使得各样品中制得的相应药品的浓度为0.5ug／mL、1.0ug／mL、4.0ug／mL，分为两个实验组，第1组放入培养箱中避光黑暗条件下；第2组置于室外自然光下，定时取样，取样时间为0、0.5、1、2、3、5、7、9、12和15d，鸡粪中药物的浓度用本实验建立的高效液相色谱法测定，根据药物降解动力学原理，对鸡粪中药物的浓度随时间的变化趋势进行曲线拟合，研究金霉素在环境鸡粪中的降解动态规律。

With present method, the contents of picric acid in water samples and synthetic samples were determined with satisfactorily results.

该方法对人体组织、血清、尿液和食用食品中四环素残留量的测定提供了可行的分析方法。

Furthermore,the behaviour of separation and preconcentration of the technology to the TCs residues in water was investigated.

课题首次提出建立集分离/富集与分析检测于一体的绿色新型综合技术，并研究该技术对水体中四环素类抗生素的分离/富集行为，旨在为控制水体抗生素残留污染奠定理论与实践基础。

Our experiment has laid a foundation for the further study of in vivo regulation of TPO gene expression, it is likely to provide a safe and regulatable way for TPO gene therapy.

所建立的逆转录病毒整合的NIH3T3细胞株，可利用四环素及其衍生物对其进行定时，定量调节多种外源基因的表达，从而增加基因治疗的精确性和有效性。

The ability to modulate the expression of multiple genes by tetracycline and its derivatives is likely to regulate the timing and level of gene expression, quantitatively induce the expression of toxic protein, increase therapeutic efficacy and safety, and provide a safe and regulatable way for gene therapy.

CHO-Tet-On细胞株的建立，可利用四环素及其衍生物调节多种外源基因的表达，有效调控基因表达的时间和水平，定量诱导毒性蛋白的表达，增加治疗的疗效和安全性，有望为基因治疗提供一条可控的安全途径。

The results of the research are suggested that it is successful to construst the transgenic mice pBC-rtTA which is a regulated element of tetracycline system and a tool mouse for our lab and also successful to construst the transgenic mice which are conditional expression of Simian Virus 40 T Antigen leading to regulatable development of tumor by tetracycline system.

试验结果证明本实验成功建立转基因小鼠pBC-rtTA，该小鼠可作为实验室的转基因工具小鼠，是四环素调控系统中的调控元件。

The method has been satisfactorily applied to the analysis of spiked raw milk samples.

该方法已成功应用于牛奶中残留四环素类抗生素含量的分析。

Therefore, the whole Beijing real estate supply will decline substantially "," I forget what, now down more than 6000 approved 10,000 square meters, inside the Second Ring, 9% between the second ring to the tricyclic 11%, between tricyclic tetracyclic to 11%, tetracycline 69% outside.

因此，整个北京房地产供应量将下降大大&，&我忘记了什么，现在已经降到6000多批10000多平方米，二环内， 9 ％之间的第二环，以11 ％的三环，四环之间三环至11 ％，四环素69 ％以外。

The improvement was already apparent within a week of the stroke, study author Yair Lampl, M.D., Edith Wolfson Medical Center and Tel Aviv University in Israel was quoted as saying.

该研究发起人、以色列特拉维夫大学的耶尔·兰普尔博士指出，利用二甲胺四环素进行治疗，中风后一周内就已经有了明显的好转。

I am accused of being overreligious," she said in her quiet, frank manner,"but that does not prevent me thinking the children very cruel who obstinately commit such suicide.""

客人们在卡罗利娜·埃凯家里，举止就文雅一些，因为卡罗利娜的母亲治家很严厉。

Designed by French fashion house Herm è s, this elegant uniform was manufactured in our home, Hong Kong, and was the first without a hat.

由著名品牌 Herm è s 设计，这件高贵的制服是香港本土制造，是我们第一套不配帽子的制服。