查询词典 tetracycline

The fry of black seabreamand giant sea perch with 4.0cm-8.5cm using the methods of dyeing, i.e., the fish immersed in the water solution containing comestible pigment, immersion in tetracycline, i.e., the fish immersed in the water solution containing tetracycline, and marking by spraying, i.e., the fish sprayed with fluorescent pigment spraying on the skin of fish, and double marking, i.e., the fish sprayed with fluorescent pigment spraying on the skin of fish after feed with tetracycline, and control group. The survival rates, mark retention rates and hydrology data were separately measured every three days for black sea bream and every two days for giant sea perch. The results were as follows.

本研究针对体长4.0cm-8.5cm的黑鲷及金目鲈的鱼苗采用染色法(将鱼只浸泡在含有食用色素的水溶液中)、四环霉素浸泡法(将鱼只浸泡在含有四环霉素的水溶液中)、喷枪法(利用高压喷枪将萤光色素打在鱼的表皮)以及双重标识法（四环霉素投餵法加上喷枪法）与一组空白组进行试验，黑鲷每三天一次、金目鲈每两天一次，调查标识后鱼只的时间别残存率、时间别标识残留率以及水质资料，结果如下。

The regulatory elements of the tetracycline resistance operon of Eschenchia coli, Tet repressor and Tet operator, have served as the basis for the establishment of heterologous repression-based inducible system in many eukaryotes including yeast, plants, insects, mammals and parasitic protozoa, such as Trypanosomes, Entamoeba, Giardia, Toxoplasma, Leishmania and Trichomonas.

基于四环素抑制子(Tetracycline Repressor，TetR)和四环素操纵子(Tet Operator，TetO)相互作用的四环素可诱导转基因表达系统，已经广泛的应用于很多真核生物，包括酵母、植物、昆虫、哺乳类细胞和诸如锥虫、阿米巴、贾第虫、弓形虫、利什曼和毛滴虫的寄生原虫。

The leptocephalus were immersed in a tetracycline solution with a concentration of 350μg ml-1 to produce a fluorescent TC mark in the otoliths as the onset of the experiment. They were then reared under a constant condition of 25oC, 15psu and light cycle of 10D/14L for 16 days to investigate the ontogenetic somatic and otolith changes during metamorphosis.

标本携回实验室后，先以浓度350μg ml-1的四环素（Tetracycline， TC）萤光溶液标示，以便在耳石上留下萤光环记号当作实验的第1天，而后饲养在温度25℃，盐度15psu，光周期10D/14L下，直接观察变态过程的连续变化。

Twenty clones showed a high level of tetracycline resistance (over 200 microgram tetracycline per ml).

测定了这些含有重组质粒的菌株抗四环素能力，其中有4株在平板上抗四环素水平超过225微克/毫升。

Results Three kinds of veterinary drugs (erramycin,tetracycline,stilboestrol)were detected in the raw meat.The detection rate of terramycin was 5.13%,and the detection rate of stilboestrol and tetracycline was 2.56% and exceeded the national standards.However,aureomycin and hydroxymethyl tertbutyladrenergics were not detected.

结果 共检测出3种兽药(土霉素、四环素和己烯雌酚)残留，金霉素和盐酸克伦特罗未检出；检出率分别为土霉素5.13%，四环素、己烯雌酚为2.56%；残留量均超出中国相应标准。

objective: the clinical date of 60 cases of early syphilis were analyzed.and summed up with the morbid condition ,types of tetter and therapeutic effect.method:all patients were divided into four groups and offered benzathine benzylpenicillin,ceftriaxone, tetracycline and azithromycin respectively.result: the cure risks of the groups treated with benzathine benzylpenicillin or ceftriaxone were all 100 percent, and no repellency in serum of the patients treated with ceftriaxone, the cure risks of the groups treated with tetracycline or azithromycin were all 80 percent.conclusion : it is indicated that benzathine benzylpenicillin and ceftriaxone were all of the best effective drugs.

目的：对60例早期梅毒患者发病情况、皮疹类型、治疗效果进行临床分析和总结。方法：分别采用苄星青霉素、头孢曲松、四环素及阿奇霉素治疗。结果：苄星青霉素、头孢曲松组，临床治愈100%，头孢曲松组无血清学抵抗，四环素、阿奇霉素临床治愈80%。

The biomechanical tests showed that two kinds of artificial bones had not significant difference on compressive strength and Young\'s modulus(P＞0.05),while the flexural strength of nano-nacre artificial bone was less than the control group(P＜0.05).3.The results of CCK-8 showed that the difference were not significant in each group,the proliferation of osteoblast reached the peak at the 5th day;7 days after being co-cultured,the total protein content of study group was higher than control group and blank group(P＜0.05),while the difference between control group and blank group was not significantP＞0.05The difference of alkaline phosphatase activities among three groups was not significant(P＞0.05The SEM view showed that osteoblast attached and grew well in two kinds of artificial bone.4.X-ray photography showed that two kinds of powder started to degrade in 2 weeks;this phenomenon became more appear in 4 weeks,nano-nacre powder degraded faster than micron-nacre powder,while the hole shadow was easy to be found;in 8 weeks,all the femoral holes recovered and returned to normal bone mineral density in all groups.Analysis of tetracycline fluorescent double marks in the hard tissue grinding slices indicated that new bone grew fastest around the bone defect area in study group,while most slowly in blank groupP＜0.05 SEM(scanning electron microscope observation showed that nano-nacre powder degraded more quickly.The same result can be found through the demineralized sections morphometric analysis,and both of the composite artificial bones made from those two kinds of nacre powder had the good connection with the adjacent tissue in rats body without apparent inflammatory response.5.X-ray photography showed that rabbit\'s bone defects healed faster in study group since NNAB implanted than in control group since MNAB implanted.At 24 weeks after operation,bone density in radial defects had nearly accessed to the normal area,while lower in control group,and turned up nonunion in blank group;The checking of BMD showed that results in study group were higher than those in control group at 8,16 and 24 week(P＜0.05), and the difference between the BMD values in study group at 24 week and those in blank group was not significant(P＞0.05).The gross specimens showed satisfactory histocompatibility both in study group and in control group,with bone tissue growing from two sides into the center of implanted materials; Normal slices in HE stain and hard tissue grinding slices in Stevenel\'s blue/Van Geison\'s picro-fuchsin stain showed that the bone growth tendency was better in study group than that in control group,and the medullary cavity had been penetrated to the implanted materials in study group at 24 week;Analysis of tetracycline fluorescent double marks in the hard tissue grinding slices indicated that new bone in both groups grew fastest 8 weeks after surgery,while slow down at 16 week.

纳米珍珠层/消旋聚乳酸复合人工骨与微米珍珠层/消旋聚乳酸复合人工骨分别与成骨细胞共培养后，其各时间点CCK-8法检测值与空白对照无显著差异(P＞0.05)，成骨细胞均在第5天达到增殖高峰期；培养7天后，实验组细胞蛋白含量高于对照组及空白组(P＜0.05)，后两者之间则无显著差异P＞0.05碱性磷酸酶活性在三组间均无显著差异(P＞0.05电镜下可见成骨细胞在两种人工骨上都有良好生长贴附能力。4.X-ray显示两种粉体在大鼠股骨骨洞植入第2周时都开始出现了降解，第4周时更为明显，纳米珍珠层粉较之微米珍珠层粉降解更快，而空白对照组骨洞阴影仍可见，至8周时，则所有组骨洞均己闭合修复，X-ray下已不可见原钻孔痕迹，恢复正常骨质密度；硬组织磨片四环素荧光双标记结果显示纳米珍珠层粉植入组较其余两组在骨缺损区周围新骨生长速度更快，空白组速度最慢P＜0.05电镜观察及常规脱钙切片亦可见到纳米粉体降解较快；由以上两种原材料制得的纳米珍珠层/消旋聚乳酸复合人工骨与微米珍珠层/消旋聚乳酸复合人工骨在大鼠体内均与周围组织结合良好，无明显炎症反应。5.X-ray显示纳米珍珠层/消旋聚乳酸复合人工骨植入兔桡骨缺损区后其骨愈合速度较对照组微米珍珠层/消旋聚乳酸复合人工骨植入的快，至植入术后24周，实验组骨缺损区接近正常骨密度，对照组骨缺损区密度较低，空白组则呈现骨不连状态；骨密度测量结果显示术后8周、16周、24周实验组的骨密度值高于对照组(P＜0.05，24周实验组的骨密度值与术前所测得的正常值无显著性差异P＞0.05动物取材大体所见均显示组织相容性良好，骨组织逐渐由植入材料两端向中央生长；常规切片HE染色及硬组织磨片Stevenel\'s blue/Van Geison\'s picro-fuchsin联合染色均可见实验组骨缺损区长势优于对照组，至术后24周，实验组骨髓腔与材料已呈相交通状；硬组织磨片荧光显微镜下观察，两组材料在术后8周处于骨生长最快速时期，16周时速度开始减慢，术后4、8、16周时实验组的新骨生长速度均较对照组的快

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。

Objective: The purposes of the present study are as follows: 1 To study the effect of direct contact with VSMC on transdifferentiation of MSC; 2 To construct MSC of Dual-stable expression of AT2R gene medicated by tetracycline regulatable system.; 3 To investigate the effects of AT2R gene medicated by tetracycline regulatable system on neointimal hyperplasia in rat carotid arteries after balloon angioplasty.

本实验体外观察MSC与VSMC在直接接触培养下的分化情况，并以MSC为载体，通过体外细胞基因转染及筛选，获得双重稳定受到强力霉素调控表达AT2R基因的MSC，将此受到调控表达的AT2R基因导入大鼠颈动脉球囊损伤动物模型中，观察MSC细胞移植实现AT2R基因在体可调控表达在新生内膜中形成的作用及潜在意义。

Moreover, we also found that cp-acnA gene might also associate with the tetracycline resistance in E.

在抗生素抗性方面，这段基因也赋予大肠杆菌对Tetracycline的抗性。

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。