功能性DEFB1基因多态性和突hBD-1表达与易受周围假肢关节感染的易感性有关
Yessica Zamudio-Cuevas1, Karina Martínez-Flores1, Ambar López-Macay1
1Laboratorio de Líquido Sinovial, Instituto Nacional de Rehabilitación "Luis Guillermo Ibarra-Ibarra", Mexico City, 14389, Mexico.
Molecular biology reports
|September 20, 2025
概括
DEFB1基因的遗传变异通过影响人类β-defensin-1 (hBD-1) 水平,与周围假肢关节感染 (PJI) 风险有关. 交叉体hBD-1可能为PJI病原体提供了洞察力.
科学领域:
- 遗传学 遗传学 是一个
- 免疫学 免疫学 免疫学
- 整形外科手术 整形外科手术
背景情况:
- 周围假肢关节感染 (PJI) 是关节置换手术的一个主要并发症.
- 人类β-防御素-1 (hBD-1),由DEFB1基因编码,对于突组织的先天免疫是至关重要的.
- 在PJI风险中DEFB1基因功能多态的作用尚未完全理解.
研究的目的:
- 调查DEFB1基因多态 (rs11362和rs1800972) 与PJI风险之间的关联.
- 评估突hBD-1水平与这些DEFB1多态性之间的相关性.
主要方法:
- 在105名接受修复关节整形手术的患者中,对DEFB1多态 rs11362和rs1800972的基因定型.
- 使用ELISA测量突液hBD-1水平.
- 使用逻辑回归和非参数方法,分析与基因型相关的PJI风险和hBD-1水平.
主要成果:
- rs1800972的GG基因型与增加的PJI风险 (OR=4.12,P=0.02) 有意义地相关.
- 具有GA (rs11362) 或GG (rs1800972) 基因型的患者表现出明显更高的突hBD-1水平 (分别P=0.024和P<0.001).
结论:
- DEFB1基因多态性通过调节hBD-1表达来影响PJI风险.
- 同胞hBD-1水平可以作为PJI中宿主-病原体相互作用的生物标志物.
- 需要进行更大规模的研究来证实这些发现,因为样本规模很小.
相关概念视频
Exon Recombination
4.0K
The evolution of new genes is critical for speciation. Exon recombination, also known as exon shuffling or domain shuffling, is an important means of new gene formation. It is observed across vertebrates, invertebrates, and in some plants such as potatoes and sunflowers. During exon recombination, exons from the same or different genes recombine and produce new exon-intron combinations, which might evolve into new genes.
Exon shuffling follows “splice frame rules.” Each exon...
Exon shuffling follows “splice frame rules.” Each exon...
4.0K
Development of the Limb Synovial Joints
2.2K
Joints form during embryonic development in conjunction with the formation and growth of the associated bones. The embryonic tissue that gives rise to all bones, cartilage, and connective tissues of the body is called mesenchyme.
The mesenchymal stem cells differentiate into chondrocytes that form the hyaline cartilage, and later the cartilaginous model of the bone. This model further transforms into a bone. This process is known as endochondral ossification.
During development, the limbs...
The mesenchymal stem cells differentiate into chondrocytes that form the hyaline cartilage, and later the cartilaginous model of the bone. This model further transforms into a bone. This process is known as endochondral ossification.
During development, the limbs...
2.2K
Genome-wide Association Studies-GWAS
15.2K
Genome-wide association studies or GWAS are used to identify whether common SNPs are associated with certain diseases. Suppose specific SNPs are more frequently observed in individuals with a particular disease than those without the disease. In that case, those SNPs are said to be associated with the disease. Chi-square analysis is performed to check the probability of the allele likely to be associated with the disease.
GWAS does not require the identification of the target gene involved in...
GWAS does not require the identification of the target gene involved in...
15.2K
Protein Complexes with Interchangeable Parts
2.8K
Groups of proteins may form a complex where each protein in this complex has a different role in the overall execution of the complex’s function. Often some of the proteins in the complex can be replaced by a closely related variant to give a complex that contains many of the same components yet is functionally distinct.
The SCF ubiquitin ligase is a protein complex of five individual proteins. This complex attaches ubiquitin to other target proteins to mark them for degradation. In order...
The SCF ubiquitin ligase is a protein complex of five individual proteins. This complex attaches ubiquitin to other target proteins to mark them for degradation. In order...
2.8K
The JAK-STAT Signaling Pathway
11.7K
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...
11.7K
Structural Joints: Synovial Joints
6.2K
Synovial joints are the most common type of joint in the body. A key structural characteristic for a synovial joint is the presence of a joint cavity. This fluid-filled space is where the articulating surfaces of the bones contact each other. Also, unlike fibrous or cartilaginous joints, the articulating bone surfaces at a synovial joint are not directly connected to each other with fibrous connective tissue or cartilage. This gives the bones of a synovial joint the ability to move smoothly...
6.2K


