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Molybdenum-based nanoclusters act as antioxidants and ameliorate acute kidney injury in mice

机译:钼基纳米团簇可作为抗氧化剂并改善小鼠的急性肾脏损伤

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摘要

Acute kidney injury (AKI) is a common reactive oxygen species (ROS)-related renal disease that causes numerous deaths annually, yet only supportive treatment is currently available in the clinics. Development of antioxidants with high accumulation rates in kidneys is highly desired to help prevent AKI. Here we report molybdenum-based polyoxometalate (POM) nanoclusters with preferential renal uptake as novel nano-antioxidants for kidney protection. These POM nanoclusters, with a readily variable valence state of molybdenum ions, possess the capability to scavenge detrimental ROS. Our results demonstrate that POM nanoclusters can efficiently alleviate clinical symptoms in mice subjected to AKI, as verified by dynamic PET imaging with 68Ga-EDTA, serum tests, kidney tissue staining, and biomarkers detection in the kidneys. The protective effect of POM nanoclusters against AKI in living animals suggests exploring their use for the treatment of AKI patients, as well as patients with other ROS-related diseases.
机译:急性肾损伤(AKI)是一种常见的与活性氧(ROS)相关的肾脏疾病,每年导致大量死亡,但目前诊所仅提供支持治疗。迫切需要开发出在肾脏中具有高积累率的抗氧化剂,以帮助预防AKI。在这里,我们报告具有优先肾脏摄取的基于钼的多金属氧酸盐(POM)纳米簇,作为用于肾脏保护的新型纳米抗氧化剂。这些POM纳米簇具有容易改变的钼离子价态,具有清除有害ROS的能力。我们的研究结果表明,POM纳米簇可以有效缓解AKI小鼠的临床症状,通过 68 Ga-EDTA的动态PET成像,血清测试,肾脏组织染色和肾脏中生物标志物的检测证明了这一点。 POM纳米簇对活体动物的AKI的保护作用表明,正在探索将其用于AKI患者以及其他与ROS相关疾病的患者的治疗。

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