theophylline

简明释义

英[ˌθɪəˈfɪliːn]美[ˌθiəˈfɪlɪn]

n. [有化] 茶碱

英英释义

单词用法

同义词

反义词

例句

1.The results showed that there were significant correlations between GER amd asthma types, theophylline dose, course of disease, drinking alcohol, and fatty foods in asthmatics(P<0.05).

结果显示，哮喘类型、茶碱类药物、病程、饮酒及食富脂食物与患者并发GER密切相关（P均＜0．05）。

2.AIM: to investigate whether low dose theophylline has an anti-inflammatory effect in asthma.

目的：研究小剂量茶碱对哮喘气道炎症的作用。

3.The absorption capability was determined and found the MIP has absorption with a good selectivity on theophylline. The factors which…

研究了影响分子烙印聚合物形貌和吸附性能的因素，表明该聚合物对模板化合物茶碱具有良好的特异性吸附性能。

4.Theophylline is administered to patients with bronchial asthma for its effects of bronchodilation and improved contractility of the diaphragm.

茶碱用于支气管哮喘病人，是基于它的支气管扩张效应以及对膈的收缩力的改善。

5.Theophylline in green tea relaxes the muscles which support the bronchial tubes, reducing the severity of asthma.

茶碱在绿茶放松支持支气管管的肌肉，减少哮喘严肃。

6.Objective: to observe the effect of theophylline on the induced sputum cytology of asthma.

目的：观察茶碱对哮喘患者诱导痰细胞学的影响。

7.Exceptions include phenytoin, theophylline, and heparin.

只有苯妥英、茶碱和肝素是例外。

8.After taking theophylline, I noticed an improvement in my breathing.

服用茶碱后，我注意到呼吸有所改善。

9.The side effects of theophylline can include nausea and insomnia.

服用茶碱的副作用可能包括恶心和失眠。

10.Patients on theophylline need regular blood tests to monitor drug levels.

服用茶碱的患者需要定期进行血液检测以监测药物水平。

11.Inhalers are often used alongside theophylline for better asthma control.

吸入器通常与茶碱一起使用，以更好地控制哮喘。

12.The doctor prescribed theophylline for my asthma symptoms.

医生为我的哮喘症状开了茶碱。

作文

Theophylline is a medication that has been used for decades to treat respiratory diseases such as asthma and chronic obstructive pulmonary disease (COPD). It belongs to a class of drugs known as methylxanthines, which are derived from xanthine, a compound found in tea and coffee. The primary action of theophylline (茶碱) is to relax the muscles in the airways, making it easier for patients to breathe. This is particularly beneficial during an asthma attack or when experiencing symptoms of COPD.The mechanism by which theophylline (茶碱) works involves the inhibition of phosphodiesterase, an enzyme that breaks down cyclic AMP (cAMP) in the body. By inhibiting this enzyme, theophylline (茶碱) increases the levels of cAMP, leading to bronchodilation, which is the widening of the air passages in the lungs. This effect not only helps in relieving acute symptoms but also contributes to long-term management of these chronic conditions.In addition to its bronchodilator effects, theophylline (茶碱) possesses anti-inflammatory properties, which further aids in reducing airway inflammation, a common issue in asthma and COPD patients. This dual action makes theophylline (茶碱) a valuable component in the treatment regimen for many individuals suffering from these conditions.However, the use of theophylline (茶碱) is not without its challenges. The drug has a narrow therapeutic window, meaning that the difference between an effective dose and a toxic dose is small. Patients taking theophylline (茶碱) must have their blood levels monitored regularly to avoid potential side effects, which can include nausea, vomiting, insomnia, and in severe cases, seizures or arrhythmias. Therefore, healthcare providers often start patients on a low dose and gradually increase it while monitoring their response.Moreover, many factors can affect the metabolism of theophylline (茶碱), including age, smoking status, and the presence of other medical conditions. For instance, smokers metabolize theophylline (茶碱) faster than non-smokers, which may require adjustments in dosing. Additionally, certain medications can interact with theophylline (茶碱), either increasing its levels and risk of toxicity or decreasing its effectiveness.Despite these challenges, theophylline (茶碱) remains an important option in the management of asthma and COPD. It is often used in conjunction with other medications, such as inhaled corticosteroids and beta-agonists, to provide comprehensive care for patients. The combination of these therapies can lead to better control of symptoms and improved quality of life.In conclusion, theophylline (茶碱) is a crucial medication in the treatment of respiratory diseases. Its ability to relax the airways and reduce inflammation makes it a valuable tool for managing asthma and COPD. However, careful monitoring and consideration of individual patient factors are essential to ensure its safe and effective use. As research continues, new formulations and delivery methods may emerge, potentially enhancing the benefits of theophylline (茶碱) in clinical practice.

茶碱是一种用于治疗哮喘和慢性阻塞性肺病（COPD）等呼吸系统疾病的药物，已有数十年的使用历史。它属于甲基黄嘌呤类药物，这些药物源自于黄嘌呤，一种在茶和咖啡中发现的化合物。theophylline（茶碱）的主要作用是放松气道中的肌肉，使患者更容易呼吸。这在哮喘发作或出现COPD症状时尤其有益。theophylline（茶碱）的作用机制涉及抑制磷酸二酯酶，这是一种在体内分解环磷酸腺苷（cAMP）的酶。通过抑制这种酶，theophylline（茶碱）增加了cAMP的水平，从而导致支气管扩张，即肺部气道的扩张。这种效果不仅有助于缓解急性症状，还有助于这些慢性疾病的长期管理。除了支气管扩张作用外，theophylline（茶碱）还具有抗炎特性，这进一步有助于减少气道炎症，这是哮喘和COPD患者的常见问题。这种双重作用使得theophylline（茶碱）成为许多患有这些疾病的个体治疗方案中有价值的组成部分。然而，使用theophylline（茶碱）并非没有挑战。该药物具有狭窄的治疗窗，意味着有效剂量和毒性剂量之间的差距很小。服用theophylline（茶碱）的患者必须定期监测其血液水平，以避免潜在的副作用，这些副作用可能包括恶心、呕吐、失眠，严重时可能导致癫痫或心律失常。因此，医疗提供者通常会让患者从低剂量开始，并逐渐增加，同时监测他们的反应。此外，许多因素会影响theophylline（茶碱）的代谢，包括年龄、吸烟状况和其他健康状况的存在。例如，吸烟者比非吸烟者代谢theophylline（茶碱）更快，这可能需要调整剂量。此外，某些药物可能与theophylline（茶碱）相互作用，既可能增加其水平和毒性风险，也可能降低其效果。尽管存在这些挑战，theophylline（茶碱）仍然是管理哮喘和COPD的重要选择。它通常与其他药物如吸入性皮质类固醇和β激动剂联合使用，以为患者提供全面的护理。这些疗法的结合可以更好地控制症状，提高生活质量。总之，theophylline（茶碱）是治疗呼吸系统疾病的重要药物。它放松气道和减少炎症的能力使其成为管理哮喘和COPD的有价值工具。然而，仔细监测和考虑个体患者因素对于确保其安全有效的使用至关重要。随着研究的不断深入，新的配方和给药方法可能会出现，进一步增强theophylline（茶碱）在临床实践中的益处。