相关实验视频

Updated: Jul 6, 2026

Morphometric Analyses of Retinal Sections

Morphometric Analyses of Retinal Sections

Published on: February 19, 2012

与氧化物捐赠体集成的Cu-Doping分层双氧化物纳米酶,用于在视网膜病变中加强抗氧化疗法

Bai Xue^1,2, Yu Lu¹, Shuyu Wang¹

¹Nanozyme Laboratory in Zhongyuan, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou, Henan, 450001, China.

Advanced healthcare materials

|July 16, 2024

概括

新型纳米酶 (Cu-LDH@GSHNO) 对抗视网膜氧化应激. 这种双重作用疗法可以减少细胞损伤并恢复血管功能,为新血管眼病提供更安全的替代方案.

科学领域:

生物医学工程生物医学工程
眼科医生眼科眼科
纳米医学是一种纳米医学.

背景情况:

视网膜神经血管疾病需要先进的治疗,因为当前治疗方法的局限性,如激光手术和抗VEGF药物.
这些现有的治疗方法可能会导致显著的副作用,突出显示了需要更安全,更有效的替代方案.
氧化应激是视网膜血管疾病进展的关键因素.

研究的目的:

引入和评估一种新的纳米酶治疗方法,Cu-LDH@GSHNO,用于治疗视网膜血管疾病.
研究Cu-LDH@GSHNO在抗氧化应激和恢复血管健康方面的双重功能能力.
评估这种新方法在细胞和动物模型中的有效性和安全性.

主要方法:

合成和表征含铜层状双氧化物 (Cu-LDH) 纳米酶与氧化释放分子 (GSHNO) 集成.
在体外评估使用人类静脉内皮细胞 (HUVEC) 来评估氧化损伤减少.
在氧诱导视网膜病变 (OIR) 的小鼠模型中进行体内测试,以确定对视网膜血管功能的治疗作用.

主要成果:

Cu-LDH@GSHNO表现出显著的超氧化物脱酶 (SOD) 和催化酶 (CAT) 级联催化活性.
该纳米酶表现出对谷氨 (GSH) 和氧化 (NO) 释放的能力,这对抗氧化剂防御至关重要.
在HUVEC和OIR小鼠模型中观察到氧化细胞损伤的显著减少和血管功能的恢复.
这种双重功能策略提高了治疗疗效和安全性.

结论:

Cu-LDH@GSHNO为视网膜血管疾病提供了一个有前途的双重功能治疗策略.
这种基于纳米酶的方法有效地减少了氧化应激,改善了血管健康,提供了更好的安全性.
纳米酶疗法的进一步临床开发有可能开启治疗氧化压力驱动的视网膜疾病的新时代.

关键词:

在LDH纳米酶中.这是一个OIR OIR.抗氧化剂治疗是一种抗氧化疗法.氧化氧化是一种氧化.视网膜的新血管化

更多相关视频

En Face Detection of Nitric Oxide and Superoxide in Endothelial Layer of Intact Arteries

En Face Detection of Nitric Oxide and Superoxide in Endothelial Layer of Intact Arteries

Published on: February 25, 2016

Quantification of Reactive Oxygen Species Using 2′,7′-Dichlorofluorescein Diacetate Probe and Flow-Cytometry in Müller Glial Cells

Quantification of Reactive Oxygen Species Using 2′,7′-Dichlorofluorescein Diacetate Probe and Flow-Cytometry in Müller Glial Cells

Published on: May 13, 2022

相关概念视频

Electron Transport Chain: Complex I and II

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...

Nitric Oxide Signaling Pathway

Nitric Oxide Signaling Pathway

Nitric oxide (NO), an inorganic gas, acts as a potent second messenger in most animal and plant tissues. NO diffuses out of the cells that produce it and enters the neighboring cells to generate a downstream response. NO synthase (NOS) catalyzes NO production by the deamination of the amino acid arginine. There are three isoforms of NOS. Endothelial cells have endothelial NOS (eNOS), nerve and muscle cells have neuronal NOS (nNOS), and macrophages produce inducible NOS (iNOS) upon exposure to...

Diabetic Retinopathy

Diabetic Retinopathy

DefinitionDiabetic retinopathy is a microvascular complication of diabetes affecting the retinal blood vessels.Risk FactorsDiabetic retinopathy is present in almost all individuals with type 1 diabetes and more than 60% of those with type 2 diabetes after two decades of disease.The risk increases with poor glycemic control, hypertension, dyslipidemia, smoking, pregnancy, and puberty.Although cataracts and glaucoma are also more frequent in people with diabetes, retinopathy remains the leading...