黄素纳米颗粒减轻大脑线粒体功能障碍和细胞衰老在γ辐射的老鼠
Omnia A Moselhy1, Nahed Abdel-Aziz2, Azza El-Bahkery2
1Biochemistry Department, Faculty of Science, Ain Shams University, Cairo, Egypt.
Scientific reports
|January 31, 2025
概括
库尔库明纳米颗粒 (CNPs) 通过减少氧化应激和炎症来防止玛辐射诱导的神经毒性. 此外,CNP还可以改善线粒体功能,并延迟大鼠大脑组织中的细胞衰老.
科学领域:
- 神经科学是一个神经科学.
- 放射学 放射学是一门学科.
- 药理学 药理学是指药理学的学科.
背景情况:
- 玛辐射 (γ) 具有广泛的应用,但会诱导细胞衰老和线粒体功能障碍等危险效应.
- 库尔库纳米粒子 (CNPs) 正在研究其潜在的治疗益处.
研究的目的:
- 评估CNP在减轻大鼠大脑组织中gα辐射诱导的线粒体功能障碍和细胞衰老中的有效性.
- 评估CNP的抗氧化,抗炎和线粒体增强特性.
主要方法:
- 用了四组雄性Wistar白色老鼠:对照,接受CNP治疗,接受γ辐射,以及接受辐射+接受CNP治疗.
- 通过口服服用10毫克/公斤/天的CNP,持续了8周.
- 分析了氧化应激,抗氧化能力,线粒体功能,神经炎症和衰老的生化标志物.
主要成果:
- 通过降低甲基 (MDA) 和增强超氧化失调酶 (SOD),降低谷氨 (GSH) 和总抗氧化能力 (TAC),CNP减轻了氧化应激.
- CNPs改善了线粒体功能 (复合I,II,ATP产生) 并降低了神经炎症标志物 (IL-6,TNF-α,NF-B).
- CNPs降低了衰老标志物 (β-银酸酶活性,p53,p21,p16) 和增加了AMPK mRNA表达.
结论:
- CNPs可以改善γ辐射诱导的神经毒性.
- 通过抗氧化剂,抗炎症和线粒体增强机制,CNP显示出作为一种新型剂延迟细胞衰老的承诺.
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