L-carnitine对反应性氧物种减少和循环胺后小鼠的亡基因表达的影响:一项实验性研究
Majid Almasi1, Golnaz Shafiei2, Hossein Nikzad1,2
1Gametogenesis Research Center, Kashan University of Medical Sciences, Kashan, Iran.
International journal of reproductive biomedicine
|November 4, 2024
概括
通过减少反应性氧物种 (ROS) 和调节卵细胞中的亡基因表达,L-卡尼丁 (LC) 保护雌性小鼠免受循环胺 (CP) 诱导的不孕症. 这种抗氧化作用可以保护卵细胞的质量免受化疗损伤.
科学领域:
- 生殖生物学 生殖生物学
- 毒理学 毒理学 毒理学
- 分子生物学分子生物学
背景情况:
- 环胺 (CP) 是一种广泛使用的抗癌药物,已知有女性不孕症的副作用.
- 作为一种抗氧化剂的L-卡尼丁 (LC) 已显示出对抗药物诱导的不孕症的潜在保护作用.
研究的目的:
- 为了研究L-卡尼丁 (LC) 在缓解环胺 (CP) 诱导的氧化应激和雌性小鼠卵子细胞中亡的疗效.
- 评估LC对活性氧物种 (ROS) 水平和CP治疗小鼠卵细胞中关键的亡基因 (Bcl2,Bax,Caspase3) 的表达的影响.
主要方法:
- 雌性NMRI小鼠被分为四组:对照组,只有CP的,只有LC的和LC+CP的.
- 小鼠每天接受IP注射盐水,CP (75毫克/公斤),LC (200毫克/公斤) 或LC,其次是CP.
- 在超排卵后收集卵细胞,并使用光染色和实时PCR分析细胞内ROS水平和亡基因表达 (Bcl2,Bax,Caspase3).
主要成果:
- 在LC+CP组的卵细胞中,与CP组相比,L-carnitine的使用显著上调Bcl2基因表达 (p = 0.01) 和下调Bax和Caspase3表达 (p = 0.03,p = 0.04).
- 与CP组相比,LC治疗显著降低了LC+CP组的细胞内ROS水平 (p < 0.001).
结论:
- L-卡尼丁有效地清除卵细胞中由环胺诱导的活性氧物种.
- LC通过调节Bcl2并降低Bax和Caspase3来调节细胞亡途径,从而保护卵细胞免受CP诱导的损伤.
更多相关视频
相关概念视频
Electron Transport Chain: Complex I and II
The mitochondrial electron transport chain (ETC) is the main energy generation system in the eukaryotic cells. However, mitochondria also produce cytotoxic reactive oxygen species (ROS) due to the large electron flow during oxidative phosphorylation. While Complex I is one of the primary sources of superoxide radicals, ROS production by Complex II is uncommon and may only be observed in cancer cells with mutated complexes.
ROS generation is regulated and maintained at moderate levels necessary...
ROS generation is regulated and maintained at moderate levels necessary...
Mutagenicity and Carcinogenicity
Mutagenicity and carcinogenicity refer to the ability of drugs to cause genetic defects and induce cancer, respectively. The International Agency for Research on Cancer (IARC) classifies agents into four groups based on their carcinogenic potential. Group 1 agents are known human carcinogens; group 2A agents are probably carcinogenic to humans; group 3 agents lack data to support their role in carcinogenesis; and group 4 includes agents for which data support that they are not likely to be...


