口服阿里皮普拉给多虫会导致肠道毒性
James D Hurcomb1, Amrita Mukherjee1, Anna E Lindell1
1MRC Toxicology Unit, University of Cambridge, Gleeson Building, Tennis Court Road, Cambridge CB2 1QR, UK.
Disease models & mechanisms
|March 24, 2025
概括
阿里皮普拉是一种抗精神病药物,可以通过破坏线粒体引起肠道问题. 这项研究表明,它增加了肠中的活性氧物种和细胞死亡,这表明抗氧化剂可能有助于减轻副作用.
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
- 细胞生物学 细胞生物学
背景情况:
- 阿里皮普拉是一种第三代抗精神病药物,与较旧药物相比,具有更好的耐受性.
- 与较旧的抗精神病药物不同,阿里皮普拉作为多巴胺受体部分激动剂.
- 已知阿里皮普拉可以抑制线粒体呼吸复合体I,这表明潜在的非目标效应.
研究的目的:
- 调查与阿里皮普拉使用相关的胃肠道障碍背后的机制.
- 为了建模阿里皮普拉在胃肠道系统中的潜在线粒体毒性.
- 探索反应性氧物种和JNK通路在阿里皮拉诱导的肠道毒性的作用.
主要方法:
- 利用果 (Drosophila melanogaster) 作为模型生物来研究阿里皮普拉对胃肠道系统的影响.
- 在暴露于阿里皮普拉的中评估肠道功能和便产量.
- 在肠道细胞中测量了线粒体膜潜力和反应性氧物种 (ROS) 水平.
- 研究了c-Jun N-终端激酶 (JNK) 途径的激活及其在细胞死亡中的作用.
主要成果:
- 阿里皮普拉的消费损害了Drosophila肠道功能,减少了便产量.
- 阿里皮普拉治疗降低了线粒体膜潜力,并增加了肠道细胞中的ROS水平.
- 阿里皮普拉增强了肠道细胞中JNK通路的激活,导致细胞死亡.
- 抗氧化剂治疗抑制了阿里皮普拉诱导的JNK激活和细胞死亡.
结论:
- 阿里皮普拉通过线粒体功能障碍和ROS产生诱导胃肠道毒性.
- 该JNK通路由线粒体ROS激活,导致肠道细胞死亡.
- 补充抗氧化剂可能是一个可行的策略,以减少aripiprazole诱导的胃肠道副作用.
相关概念视频
Physical Properties of Amines
Amines with low molecular weight are usually gaseous at room temperature, while those with high molecular weight are liquid or solids in nature. Usually, low molecular weight amines have a rotten fish-like smell. Diamines typically have a pungent smell. For instance, cadaverine and putrescine, depicted in Figure 1, are two molecules responsible for decaying tissue.
Prevention of Further Absorption of Poison
In cases of acute poisoning, the primary objective is to prevent further absorption of the toxic substance into the body. Immediate interventions using various decontamination techniques targeting the gastrointestinal (GI) tract can achieve this. Decontamination is crucial to prevent poison from entering the systemic circulation, which involves washing affected areas with water and mild soap and removing contaminated clothing. Once external decontamination is done, attention must be turned to...
Anticholinesterase Agents: Poisoning and Treatment
Anticholinesterases, also known as cholinesterase inhibitors, work by blocking the breakdown of acetylcholine, leading to its accumulation in the synaptic cleft. This accumulation indirectly enhances both muscarinic and nicotinic actions. These agents are classified as reversible or irreversible based on their mechanism of action.
Irreversible agents form a strong bond with the cholinesterase enzyme, making it inactive. The breakdown of the phosphorylated enzyme is slower than the...
Irreversible agents form a strong bond with the cholinesterase enzyme, making it inactive. The breakdown of the phosphorylated enzyme is slower than the...
Pharmaceutical Poisoning: Treatment Strategies
Treatment strategies for poisoning are a critical aspect of emergency medicine, focusing on preventing the absorption of toxins and enhancing their elimination. When a poisoning incident occurs, the first response is to halt exposure and decontaminate the patient, particularly through gastrointestinal (GI) methods if the poison was ingested.Gastrointestinal Decontamination Techniques:Activated charcoal is the cornerstone of GI decontamination. It works through adsorption, binding the toxin to...
Inhalation Anthrax
Anthrax is a zoonotic disease caused by Bacillus anthracis, a Gram-positive, spore-forming bacterium. It primarily affects herbivorous animals but can be transmitted to humans through skin contact, ingestion, or inhalation of spores.Cutaneous anthrax, the most common form, typically results from direct contact with bacterial spores through skin abrasions and is generally less severe. Gastrointestinal anthrax results from eating undercooked or contaminated meat. It affects the mouth, throat, or...
Amebiasis
Entamoeba histolytica, a protozoan parasite, is responsible for intestinal and extraintestinal amebiasis. Though a significant proportion of infections remain asymptomatic, approximately 50 million individuals annually are estimated to present with clinical disease, resulting in up to 100,000 deaths globally. The disease burden is disproportionately high in regions with lower socioeconomic status, such as parts of India, Africa, Mexico, and Latin America.Etiology and TransmissionThe infective...


