西斯普拉提因差异性损害哺乳动物垂体末端器官
John Lee1, Hong Zhu2, Wu Zhou2
1National Institute on Deafness and Other Communication Disorders, NIH, Bethesda, Maryland, USA.
Ear and hearing
|December 31, 2025
概括
西斯普拉丁化疗可能会损害内耳的平衡系统,特别是囊. 这项对小鼠的研究表明前庭功能障碍在治疗后可能会恶化,这表明患者需要监测耳膜功能.
科学领域:
- 耳部毒理学 耳部毒理学
- 神经科学是一个神经科学.
- 静脉系统研究研究
背景情况:
- 西斯是一种重要的化疗剂,已知具有耳毒性.
- 目前尚不清楚西斯普拉丁的静脉毒性作用.
- 之前的研究建立了一个多循环西斯普拉丁小鼠模型来治疗听力损失.
研究的目的:
- 研究西斯在前庭外周的功能和形态影响.
- 在经过验证的小鼠模型中描述西斯丁对平衡功能的影响.
- 为了比较小鼠的发现与人类骨组织病理学.
主要方法:
- 小鼠接受了多个周期的西斯普拉丁,随后进行了前体感官唤起潜力测试.
- 治疗后进行了视门眼反射测试和单单元记录.
- 进行了前体末端器官 (,,半圆通道) 的形态分析.
- 对人类骨组织病理学的相关性进行了审查.
主要成果:
- 西斯提升了前庭感官唤起潜在的门,随着时间的推移而恶化.
- 耳骨 afferent 响应显示规律性和精度下降.
- 状毛细胞数量显著减少,与状或半圆形通道不同.
- 人类骨数据显示与囊性退化有一致性.
结论:
- 西斯普拉丁对前庭末端器官产生不利和差异性的影响,其中囊具有独特的敏感性.
- 静脉管功能障碍甚至在停止西斯普拉丁治疗后也可能进展.
- 对于接受西斯普拉丁治疗的患者,建议监测耳骨功能.
相关概念视频
Drugs that Destabilize Microtubules
3.6K
Microtubules are dynamic structures and can be regulated by microtubule targeting agents (MTAs). Microtubule destabilizing drugs are a class of MTAs that destabilize and prevent microtubules' polymerization. Both natural and synthetic chemicals can be found under this class of drugs. Vincristine and vinblastine, two vinca alkaloids, and colchicine were among the first to be discovered. These drugs can affect cells in various ways, either by inducing a change in cell morphology, preventing...
3.6K
Chemotherapy-Induced Nausea and Vomiting: Neurokinin-1 Receptor Antagonists
516
Neurokinin 1 (NK1) receptors are distributed across the GI tract, vagal afferents, and key CNS regions including the central vomiting center and chemoreceptor trigger zone (CTZ) Chemotherapy agents stimulate enterochromaffin cells in the gastrointestinal (GI) tract to release large amounts of substance P (SP). SP is a neuropeptide released by specific sensory nerves in response to many different stressors, including those in the GI mucosa affected by chemotherapy. SP binds and activates...
516
Equilibrium and Balance
6.1K
The inner ear assumes dual functionalities of auditory perception and equilibrium maintenance. The vestibule is the organ responsible for balance. This organ contains mechanoreceptors, specifically hair cells, endowed with stereocilia, which aid in deciphering information regarding the position and motion of our heads. Two intrinsic components, the utricle and saccule, help perceive head position, while the semicircular canals track head movement. Neurological messages initiated in the...
6.1K


