在骨关节炎和肥胖症中的软骨寡合矩阵蛋白-是否出现了新的考虑?
Sevdalina Nikolova Lambova1,2, Tsvetelina Batsalova3, Dzhemal Moten3
1Department of Propaedeutics of Internal Diseases "Prof Dr Anton Mitov", Faculty of Medicine, Medical University-Plovdiv, 4000 Plovdiv, Bulgaria.
International journal of molecular sciences
|May 25, 2024
概括
在代谢性膝关节骨关节炎 (OA) 患者和对照组中分析了软骨寡合矩阵蛋白 (COMP) 的血清水平. 在OA患者中,COMP水平低于对照组,并且与OA患者的疾病持续时间负相关.
科学领域:
- 生物化学 生物化学
- 整形外科 整形外科 整形外科
- 代谢疾病 代谢疾病
背景情况:
- 骨关节炎 (OA) 的诊断依赖于延迟的放射性变化和临床症状.
- 早期诊断对于及时的治疗干预至关重要,以防止进一步的关节损伤.
- 软骨寡合矩阵蛋白 (COMP) 是一种细胞外矩阵蛋白,对原稳定性至关重要,但其在代谢性OA中的作用尚不清楚.
研究的目的:
- 为了研究代谢性膝关节OA患者的血清中COMP水平,与身体质量指数 (BMI) 不同的对照人群相比.
- 探索血清中COMP水平,OA疾病持续时间和BMI之间的关系.
- 确定对早期OA检测和管理的潜在影响.
主要方法:
- 从膝盖骨关节炎患者和健康对照组中采集了血清样本.
- 血清中COMP水平使用已建立的试验量化.
- 进行了统计分析,以比较不同组的COMP水平,并将其与BMI和疾病持续时间等临床参数相关联.
主要成果:
- 与对照组 (1518.69 ng/mL) 相比,膝关节骨质炎患者 (1294.58 ng/mL) 的 COMP 平均水平明显较低 (p=0.0012).
- COMP水平与OA疾病持续时间呈负相关性 (p=0.04).
- 在对照组中,超重和肥胖的个体 (BMI ≥25 kg/m2) 呈现出明显高于正常体重对照组的COMP水平 (p=0.0092).
结论:
- 在代谢性膝关节OA患者中,血清中COMP水平较低,可能是由于软骨体积减少.
- 复合化合物水平可能作为关节炎进展的潜在生物标志物,与疾病持续时间相反.
- 超重/肥胖对照组中COMP升高表明OA发育中的代谢状态,脂肪组织和软骨代谢之间的复杂相互作用.
相关概念视频
Growth of Cartilage and Bone Tissue
3.2K
Chondrocytes form a temporary cartilaginous model by dividing and secreting a thick gel-like extracellular matrix. Once the chondrocytes undergo programmed cell death, osteoblasts enter the site of the cartilaginous model. The process of replacing the temporary cartilaginous model with bone in an ordered manner is called endochondral ossification. In endochondral ossification, not all of the cartilage is replaced by bone tissue. Some cartilage that performs a protective and supportive function...
3.2K
Extracellular Matrix
2.9K
Unlike epithelial tissue, which is composed of cells closely packed with little or no extracellular space in between, connective tissue cells are dispersed in a matrix. This extracellular matrix (ECM) is composed of fibrous proteins like collagen, elastin, and fibronectin in a ground substance consisting of interstitial fluid, cell adhesion proteins, and proteoglycans. The proteoglycans form a gel-like material in the spaces between cells and provide hydration, buffering, binding, and force...
2.9K
Osteoclasts in Bone Remodeling
2.9K
Osteoclasts are cells responsible for bone resorption and remodeling. They originate from hematopoietic progenitor cells present in the bone marrow. Numerous progenitor cells fuse to form multinucleated cells, each with 10-20 nuclei. A single osteoclast has a diameter of 150 to 200 µM. These cells have ruffled borders that break down the underlying bone tissue and release minerals such as calcium into the blood in bone resorption. Osteoclasts cling to bones with their ruffled edges during...
2.9K
The Bone Matrix
3.1K
Bone contains a relatively small number of cells entrenched in a matrix of collagen fibers that provide an adherent surface for inorganic salt crystals. Both components of the matrix, organic and inorganic, contribute to the unusual properties of bone. Without collagen, bones would be brittle and shatter easily. Without mineral crystals, bones would flex and provide little support. This can be observed by an experiment: when the minerals of a bone are dissolved by soaking the bone in...
3.1K
Obesity
456
The Body Mass Index (BMI) is a numerical value derived from a person's weight and height, used to categorize individuals into weight ranges. It is calculated using the formula: weight in kilograms divided by height in meters squared. Obesity is a health condition characterized by excessive accumulation of adipose tissue that poses health risks, often diagnosed with a BMI ≥ 30. This excess fat storage occurs when surplus dietary calories are converted into triglycerides and stored in...
456
Matrix Proteoglycans and Glycoproteins
3.9K
Proteoglycans are extensively glycosylated proteins, commonly found in the extracellular matrix, interwoven with collagen fibers. Hyaline cartilage, the most common type of cartilage in the body, consists of short and dispersed collagen fibers associated with large amounts of proteoglycans. These proteoglycans have long negative charges that attract cations, which in turn attract water molecules. This influx of ions and water molecules swells up the proteoglycan like a water-soaked gel that can...
3.9K


