tetracyclines

简明释义

英[ˌtetrəˈsaɪklɪnz]美[ˌtetrəˈsaɪklɪnz;ˌtetrəˈsaɪkl

n. [药]四环素（tetracycline 的复数）

英英释义

单词用法

同义词

反义词

例句

1.Some primary research to the chemical modification of tetracyclines were carried out. Several tetracycline derivatives were prepared.

我们对四环素类抗生素的化学反应和结构修饰进行了一些初步的探索，制备了一些四环素类衍生物。

2.METHODS: By collecting the literatures and making aggregate analysis of 8 representative drugs depending on the classifications of macrolides, quinolones and tetracyclines.

方法：查阅相关文献，按大环内酯类、喹诺酮类、四环素类分类对8种代表药物进行综合分析。

3.Oral tetracyclines will minimize the risk of infection.

口服四环素可以降低感染的风险。

4.METHODS: By collecting the literatures and making aggregate analysis of 8 representative drugs depending on the classifications of macrolides, quinolones and tetracyclines.

方法：查阅相关文献，按大环内酯类、喹诺酮类、四环素类分类对8种代表药物进行综合分析。

5.Tetracyclines (tetracycline, oxytetracycline and chlortetracycline) may be used for either prevention or treatment of bacterial infections.

可能用四环素类抗生素(四环素、土霉素和氯四环素)预防或治疗细菌感染。

6.First, using Eu3 + -tetracyclines complex as fluorescence probe, study the interaction between the complex and HSA and its application.

第一章，以铕离子—四环素类药物为荧光探针，研究与人血清蛋白的相互作用及其分析应用。

7.Tetracyclines macrolides and quinolones are the effective antibiotics in the treatment of these diseases.

四环素类、大环内酯类、喹诺酮类抗生素是治疗解脲支原体感染的主要有效药物。

8.Result Bone-targeting drugs can be developed by synthesis. Among them, tetracyclines and diphosphonic acids are extensively studied.

结果通过化学合成的方法寻找骨靶向性化合物的研究比较广泛，应用最多的是四环素类及双膦酸类。

9.Some patients may experience side effects when taking tetracyclines.

一些患者在服用四环素时可能会出现副作用。

10.Pregnant women should avoid tetracyclines due to potential risks.

孕妇应避免使用四环素，因为可能存在风险。

11.It is important to take tetracyclines with a full glass of water.

服用四环素时，重要的是要配一整杯水。

12.Doctors often prescribe tetracyclines for bacterial infections.

医生通常会开处方四环素用于细菌感染。

13.The use of tetracyclines can lead to tooth discoloration in children.

使用四环素可能导致儿童牙齿变色。

作文

Tetracyclines are a class of broad-spectrum antibiotics that have been extensively used in medicine since their discovery in the 1940s. These antibiotics are effective against a wide variety of bacteria, making them invaluable in treating numerous infections. The mechanism of action of tetracyclines (四环素) involves inhibiting protein synthesis in bacteria, which ultimately prevents their growth and reproduction. This is achieved by binding to the bacterial ribosome, specifically the 30S subunit, thereby blocking the attachment of aminoacyl-tRNA to the mRNA-ribosome complex. The first tetracycline (四环素) discovered was chlortetracycline, which was derived from the bacterium Streptomyces aureofaciens. Since then, several other derivatives have been developed, including doxycycline and minocycline, each with its unique properties and spectrum of activity. Doxycycline, for instance, is known for its long half-life and better absorption, making it a preferred choice for many clinicians.One of the remarkable features of tetracyclines (四环素) is their ability to treat infections caused by atypical pathogens, such as chlamydia and mycoplasma. This has made them particularly useful in treating respiratory tract infections, acne, and even certain sexually transmitted diseases. Moreover, tetracyclines (四环素) have anti-inflammatory properties, which can be beneficial in treating conditions like rosacea and periodontitis.Despite their effectiveness, the use of tetracyclines (四环素) is not without challenges. One significant issue is the development of antibiotic resistance. Over time, many bacterial strains have developed mechanisms to resist the effects of tetracyclines (四环素), rendering these antibiotics less effective. This has led to increased research into alternative treatments and the importance of using antibiotics judiciously to preserve their efficacy.Additionally, the use of tetracyclines (四环素) is contraindicated in certain populations, particularly pregnant women and young children. This is due to the potential for tetracyclines (四环素) to cause discoloration of teeth and affect bone growth. Health professionals must carefully consider the risks and benefits when prescribing these antibiotics.In conclusion, tetracyclines (四环素) represent a crucial tool in the arsenal of antibiotics available to healthcare providers. Their broad-spectrum activity and unique properties make them suitable for treating a variety of infections. However, the challenges posed by antibiotic resistance and specific contraindications necessitate careful consideration in their use. Ongoing research and education about the responsible use of tetracyclines (四环素) will be essential in ensuring that these valuable medications remain effective for future generations.