相关实验视频

Updated: May 5, 2026

A Proinflammatory, Degenerative Organ Culture Model to Simulate Early-Stage Intervertebral Disc Disease.

A Proinflammatory, Degenerative Organ Culture Model to Simulate Early-Stage Intervertebral Disc Disease.

Published on: February 14, 2021

通过基于聚多巴胺的精氨酸输送纳米平台减轻椎间盘退化,用于持续调节氧化应激

Dongliang Wang¹, Kun Lu¹, Guoyou Zou²

¹Department of Orthopedics, Second Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China; Department of Orthopedics, Yancheng First People's Hospital of Jiangsu Province, Yancheng, Jiangsu, China.

International journal of biological macromolecules

|June 5, 2024

概括

这项研究开发了一种用于持续释放精子胺 (SPD) 的新型纳米粒子系统,以对抗椎间盘退化 (IVDD). 装有SPD的纳米粒子有效降低了氧化应激和炎症,促进了长期的磁盘修复.

科学领域:

生物材料科学生物材料科学
再生医学是一种再生医学.
肌肉骨系统疾病肌肉骨系统疾病

背景情况:

椎间盘退化 (IVDD) 是一种普遍的肌肉骨疾病,治疗选择有限.
氧化应激是IVDD发病的一个关键因素,强调了针对性治疗的必要性.
精子胺 (SPD) 显示出减轻氧化应激的潜力,但其在IVDD中的应用需要进一步研究.

研究的目的:

开发一个智能,可生物降解的中孔多多巴胺 (PDA) 纳米平台,用于持续释放SPD.
评估SPD装载PDA纳米颗粒 (SPD/PDA) 在治疗IVDD中的氧化应激和炎症方面的治疗效果.
评估SPD/PDA在退行性椎间盘中的长期修复效应.

主要方法:

用于SPD封装的中孔PDA纳米颗粒的制造.
在特定条件下 (低pH,H2O2) 对纳米粒子药物释放的评估.
在体外评估SPD/PDA对氧化应激和M2巨细胞两极分化.
在子IVDD模型中SPD/PDA疗效的体内评估.

主要成果:

PDA纳米粒子表现出球形形态和中孔结构,使得药物释放有反应性.
与单独的SPD相比,SPD/PDA在减轻氧化应激损伤方面表现出更好的治疗效果.
SPD和SPD/PDA都促进了抗炎M2巨细胞的两极分化.
在体内研究表明,在SPD/PDA治疗组显著的长期修复疗效.

结论:

开发的SPD/PDA纳米平台提供了持续的SPD释放,并有效地针对IVDD中的氧化应激.
与SPD和响应性纳米载体的协同处理为IVDD管理提供了一个有希望的策略.
这种方法提供了一个新的治疗途径,用于清理反应性氧物种并促进磁盘再生.

关键词:

椎间盘退化椎间盘退化半孔多多巴胺纳米颗粒.氧化应激是一种氧化应激.再生再生再生的过程精子胺是什么精子胺是什么

更多相关视频

Optical Sectioning and Visualization of the Intervertebral Disc from Embryonic Development to Degeneration

Optical Sectioning and Visualization of the Intervertebral Disc from Embryonic Development to Degeneration

Published on: July 8, 2021

Operational and Intervention Effects of Targeted Tuina in Lumbar Intervertebral Disc Degeneration Model Rabbits

Operational and Intervention Effects of Targeted Tuina in Lumbar Intervertebral Disc Degeneration Model Rabbits

Published on: July 21, 2023

相关概念视频

Degenerative Disc Disease I: Introduction

Degenerative Disc Disease I: Introduction

Degenerative disc disease is a chronic condition in which intervertebral discs gradually lose structure and function. It is not infectious or autoimmune; rather, it results from age-related biochemical and mechanical changes, influenced by genetic, metabolic, and environmental factors.Structure and Function of DiscsThe spine contains 23 intervertebral discs that absorb load, distribute forces, maintain spacing, and allow flexibility. Each disc consists of a nucleus pulposus, a gel-like core...

Degenerative Disc Disease ll: Pathophysiology

Degenerative Disc Disease ll: Pathophysiology

The symptoms of degenerative disc disease arise from a combination of mechanical compression, vascular compromise, and biochemical inflammation, which together disrupt nerve function and produce pain.Mechanical CompressionDisc degeneration reduces height and elasticity, predisposing to herniation of the nucleus pulposus, a major cause of radicular pain. Herniations may be protrusion (bulging with intact annulus), extrusion (nucleus extends beyond disc but remains connected), or sequestration...