卡尔瓦克罗尔可以缓解大鼠糖尿病心肌病症:向cuproptosis通路
Hala Attia1, Aliah Alshanwani2, Nadin Alatrouzi3
1Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia.
Toxicology and applied pharmacology
|November 13, 2025
概括
卡尔瓦克罗尔 (CAR) 通过减少心脏铜过载和抑制与高血糖症相关的细胞死亡途径 - - 亡,从而预防糖尿病心肌病 (DCM).
科学领域:
- 心脏病学 心脏病学
- 代谢疾病 代谢疾病
- 毒理学 毒理学 毒理学
背景情况:
- 糖尿病心肌病 (DCM) 是一种由慢性高血糖症引起的心肌损伤.
- 过高血糖会诱导心脏的铜过载,导致铜诱导的细胞死亡 (cuproptosis).
- 杯性与铁素-1 (FDX-1) 和脂酸合成酶 (LIAS) 的失调有关,这是克雷布斯循环中的关键酶.
研究的目的:
- 调查卡瓦克罗尔 (CAR) 对DCM的保护作用.
- 为了确定CAR是否针对糖尿病老鼠模型中的cuproptosis.
主要方法:
- 一种高脂肪饮食/链毒素模型被用于诱导大鼠糖尿病.
- 鼠被分为对照组,糖尿病组和接受CAR治疗 (20 mg/kg) 或接受瓦尔萨坦治疗 (30 mg/kg) 的组,持续6周.
- 试验包括血糖,胰岛素,铜水平,心脏生物标记物,氧化应激标记物,炎症性细胞因子,铜载体 (CTR1,ATP7A,ATP7B),HSP-70,FDX-1,LIAS和组织学检查.
主要成果:
- 糖尿病老鼠表现出心脏生物标志物,炎症,脂质过氧化物和铜水平的升高,以及抗氧化能力 (GSH,SOD) 的降低.
- 心脏组织显示铜,HSP-70,CTR1和FDX-1的增加,ATP7A,ATP7B和LIAS的减少,证实铜过载和cuproptosis.
- CAR治疗显著改善了这些生化和病理变化,包括心肌缩和纤维化.
结论:
- 卡尔瓦克罗尔对糖尿病心肌病有显著的心脏保护作用.
- 汽车能使心脏的铜平衡正常化,并抑制亡.
- 这些发现表明,CAR可以作为DCM的潜在治疗剂,通过向铜代谢和细胞死亡途径.
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