相关实验视频
Updated: Jun 24, 2025
05:50
Ameliorating Osteoarthritis in Mice Using Silver Nanoparticles
Published on: June 2, 2023
1.1K
维生素B6通过抑制炎症和亡来缓解骨关节炎
Zhaoyi Fang1, Qingxiang Hu1, Wenxin Liu2
1Department of Sports Medicine, National Center for Orthopaedics , Shanghai Jiao Tong University Affiliated Sixth People's Hospital, No. 600 Yishan Road, Shanghai, 200233, China.
BMC musculoskeletal disorders
|June 6, 2024
概括
维生素B6 (VB6) 通过改善软骨健康,减少炎症和细胞死亡,在治疗骨关节炎 (OA) 中表现有前途. 这项研究调查了VB6的研究.
科学领域:
- 生物化学 生物化学
- 细胞生物学 细胞生物学
- 免疫学 免疫学 免疫学
背景情况:
- 目前的骨关节炎 (OA) 治疗缺乏显著的临床疗效.
- 维生素B6 (VB6) 在其他疾病中也表现出抗炎和抗丧的作用.
研究的目的:
- 研究维生素B6 (VB6) 在减轻骨关节炎的软骨退化中的治疗潜力.
- 探索VB6对细胞外基质 (ECM) 代谢,细胞亡和OA炎症影响的机制.
主要方法:
- 建立了一个原诱导关节炎 (CIA) 鼠标模型,以使用骨关节炎研究协会国际 (OARSI) 评分系统来评估骨关节炎的严重程度.
- 关键指标的量化mRNA和蛋白质水平与ECM代谢,亡和炎症有关.
- 通过HE和Mason染色评估了VB6补充剂对软骨的影响,并通过TdT介导的dUTP末标签评估了亡率.
主要成果:
- 治疗VB6显示出改善OARSI得分的趋势,显著减少软骨厚度,软骨细胞失调和膝盖缩.
- 补充VB6降低了亲亡的标记物 (Bax,分裂的caspase-3) 的调节,并提高了抗亡标记物Bcl-2的调节.
- 实验表明,VB6在体内和体外都增强了ECM代谢.
结论:
- 维生素B6 (VB6) 通过调节ECM新陈代谢,炎症和软质细胞和CIA小鼠的亡,有效地减轻骨关节炎.
- 这些发现为开发向性OA治疗提供了理论基础,并进一步阐明了VB6在OA治疗中的机制.
相关概念视频
01:25Role of Vitamins in Maintaining Bone Health
3.2K
The growth and maintenance of bone are regulated by a combination of nutritional factors, including vitamins, such as vitamin A, B12, C, D, and K.
Vitamin A
Vitamin A is involved in the process of bone remodeling. Retinoic acid, the active metabolite of Vitamin A, has nuclear receptors in osteoblasts and osteoclasts, which are involved in bone remodeling.
Vitamin B12
Vitamin B12 acts as a cofactor during the formation of osteoblast-related proteins, such as osteocalcin. Vitamin B12 plays a role...
Vitamin A
Vitamin A is involved in the process of bone remodeling. Retinoic acid, the active metabolite of Vitamin A, has nuclear receptors in osteoblasts and osteoclasts, which are involved in bone remodeling.
Vitamin B12
Vitamin B12 acts as a cofactor during the formation of osteoblast-related proteins, such as osteocalcin. Vitamin B12 plays a role...
3.2K
01:22Connective Tissue Cell Types
3.2K
Connective tissue develops from the mesoderm of a developing embryo and consists of cells, fibers, and ground substance: a gel-like material containing large complexes of carbohydrates and proteins. Connective tissue was first identified as a separate tissue family in the 18th century, and Johannes Peter Muller coined the term connective tissue.
Fat cells (adipocytes), smooth muscle cells (myoblasts), and bone cells (osteoblasts) are some connective tissue cell types. Some immune system cells...
Fat cells (adipocytes), smooth muscle cells (myoblasts), and bone cells (osteoblasts) are some connective tissue cell types. Some immune system cells...
3.2K
01:20The JAK-STAT Signaling Pathway
8.8K
Several cytokine receptors have tightly bound Janus kinase or JAK proteins attached at their cytosolic tail. Small signaling molecules such as cytokines, growth hormones, or prolactins bind to the cytokine receptors and initiate their dimerization. The dimerization brings the cytosolic JAKs together that trans-phosphorylate and activates each other. The activated JAKs now phosphorylate cytosolic tails of the cytokine receptors, which serve as binding sites for adaptor proteins such as SH2...
8.8K
01:28Inflammatory Response
2.0K
An inflammatory response is a localized, nonspecific immune reaction that occurs when a tissue is injured. It is characterized by redness, swelling, heat, and pain, which are commonly called the cardinal signs and symptoms of inflammation. Inflammation can sometimes result in a loss of function.
Inflammation can be triggered by various stimuli, such as impact, abrasion, chemical irritation, infections, and extreme hot or cold temperatures. These can damage cells and connective tissue fibers,...
Inflammation can be triggered by various stimuli, such as impact, abrasion, chemical irritation, infections, and extreme hot or cold temperatures. These can damage cells and connective tissue fibers,...
2.0K
01:24T Cell Types and Functions
1.0K
When T cells with CD4 markers are activated, they give rise to two types of effector cells: helper T cells and regulatory T cells. Meanwhile, T cells with CD8 markers differentiate into effector cytotoxic T cells. The differentiation of CD4 T cells into helper T cell subsets, such as Th1, Th2, and Th17 cells, is dependent on the antigen type, antigen-presenting cell, and regulatory cytokines.
Th1 cells stimulate dendritic cells to express necessary co-stimulatory molecules on their surfaces for...
Th1 cells stimulate dendritic cells to express necessary co-stimulatory molecules on their surfaces for...
1.0K
01:29Bone Disorders
3.5K
Aging and its effect on bone remodeling is the most common cause of bone disorders. In young and healthy people, bone deposition and resorption happen at an equal rate to maintain optimal bone health.
Bone deposition is also affected by the levels of sex hormones like estrogen and testosterone that promote osteoblast activity and bone matrix synthesis. When the level of these hormones decreases due to aging, it causes a reduction in bone deposition. As a result, bone resorption by osteoclasts...
Bone deposition is also affected by the levels of sex hormones like estrogen and testosterone that promote osteoblast activity and bone matrix synthesis. When the level of these hormones decreases due to aging, it causes a reduction in bone deposition. As a result, bone resorption by osteoclasts...
3.5K