在体内对毒性调节药物相互作用的查确定了对抗作用,保护斑马鱼的耳毒性
Ethan Bustad1, Emma Mudrock1, Elizabeth M Nilles1
1Center for Global Infectious Disease Research, Seattle Children's Research Institute, Seattle, WA, United States.
Frontiers in pharmacology
|March 22, 2024
概括
新的研究表明,像阿齐思罗米这样的宏类抗生素可以通过减少斑马鱼毛细胞的药物吸收来保护阿米诺糖化物诱导的耳毒性,而不会影响抗微生物药物的有效性.
科学领域:
- 药理学 药理学是指药理学的学科.
- 毒理学 毒理学 毒理学
- 耳毒性研究研究
背景情况:
- 耳毒性是150多种药物的常见副作用,通常是同时服用的.
- 评估药物相互作用对于设计更安全的多药疗法和识别保护剂至关重要.
研究的目的:
- 开发和验证一种高通量工作流程,用于评估药物诱导的耳毒性和耳保护.
- 通过使用一种新的临床前模型,研究影响耳毒性的药物相互作用.
主要方法:
- 在斑马鱼幼虫中开发了保护和伤害对毒性评估的并行评估 (PEPITA),用于半自动化,高吞吐量量化.
- 利用共聚焦显微镜分析药物吸收和发细胞损伤,以应对药物组合.
主要成果:
- 在斑马鱼中发现了宏类和氨基糖化物抗生素之间的对抗性相互作用,可以保护斑马鱼免受氨基糖化物中毒作用.
- 麦克罗利德 (阿齐思罗米,红) 抑制了氨基糖化物进入头发细胞的吸收,在不影响抗菌活性的情况下防止损伤.
结论:
- 组合药物干预可以潜在地防止耳毒性,而不会妨碍治疗疗效.
- PEPITA工作流提供了一个强大的工具,用于临床前评估药物相互作用和自身保护策略.
相关概念视频
Combined Effects of Drugs: Antagonism
11.8K
The combined effects of drugs can result in various interactions, of which an important type is antagonism. Antagonism is a mechanism where one drug inhibits or counteracts the effects of another drug. Antagonism can occur through various means, including receptor binding, allosteric modulation, functional interaction, chemical reactions, and pharmacokinetic processes.
The most common type is receptor antagonism, where one drug acts as an antagonist to block the effects of another drug by...
The most common type is receptor antagonism, where one drug acts as an antagonist to block the effects of another drug by...
11.8K
Combined Effects of Drugs: Synergism
6.4K
Synergism is a useful mechanism where combining two or more drugs is more effective than each constituent used alone. Such combinations are also called supra-additive interactions. The drugs collectively enhance the final therapeutic effect by acting on different targets. Another advantage is that the low dose of each constituent drug is sufficient to achieve the desired effect. This helps reduce the duration of therapy and lower the adverse effects of these drugs.
Such synergistic combinations...
Such synergistic combinations...
6.4K
Agonism and Antagonism: Quantification
1.4K
When drugs are administered, they can elicit either an agonist or antagonist effect on the body. Agonism occurs when a drug activates a specific receptor, triggering a biological response. On the other hand, antagonism happens when a drug binds to the same receptors but blocks their activation, thereby preventing a biological response.
To quantify these effects, researchers use a dose-response curve, which provides valuable information about the potency and efficacy of a drug. Potency refers to...
To quantify these effects, researchers use a dose-response curve, which provides valuable information about the potency and efficacy of a drug. Potency refers to...
1.4K
Drug toxicity: Drug–Drug Interaction
437
Drug–drug interactions can precipitate toxicity through multiple mechanisms. Absorption interactions alter how drugs enter the body, exemplified when ranitidine increases the absorption of basic drugs, while cholestyramine decreases the levels of propranolol. Protein binding interactions occur when drugs share the same binding sites on plasma proteins. Drugs like aspirin and warfarin, when bound in excess, can lead to increased free drug concentrations, enhancing the potential for...
437


