相关实验视频
Updated: Jul 27, 2026

08:32
Subpial Adeno-associated Virus 9 (AAV9) Vector Delivery in Adult Mice
Published on: July 13, 2017
一个COL9A2的等位基因与椎间盘疾病相关联
S Annunen1, P Paassilta, J Lohiniva
1Collagen Research Unit, Biocenter and Department of Medical Biochemistry, University of Oulu, 90220 Oulu, Finland.
概括
遗传因素导致椎间盘疾病. 在患者中发现了一种COL9A2基因变异,这表明它在发展这种常见的肌肉骨疾病中的作用.
科学领域:
- 遗传学 是一个遗传学.
- 肌肉骨系统疾病 肌肉骨系统疾病
- 分子生物学分子生物学
背景情况:
- 椎间盘疾病 (IVDD) 是一种普遍的肌肉骨疾病.
- 环境和人类学因素是已知的贡献者.
- 新出现的证据强调了IVDD中遗传倾向的作用.
研究的目的:
- 研究 COL9A2 基因对椎间盘疾病的潜在遗传贡献.
- 为了确定与IVDD相关的COL9A2的特定序列变异.
主要方法:
- 在被诊断为IVDD的个体中查COL9A2基因的序列变异.
- 病例控制分析,比较患者和健康对照之间的变异频率.
- 基于家庭的研究,包括链接分析和链接不平衡分析,以确认遗传关联.
主要成果:
- 在157名IVDD患者中,在6名患者中发现了COL9A2基因的特定序列变异,但在174名对照人群中没有.
- 这种变异导致了谷氨胺转变为酸盐的编码变化,在四个研究家庭中显示出与疾病表型的强烈共分离.
- 链接分析得出了4.5的LOD得分,条件链接不平衡分析提供了7.1的额外LOD得分,支持遗传链接.
结论:
- 鉴定到的 COL9A2 基因变异是椎间盘疾病的潜在致病因素.
- 基因分析提供了强有力的证据,证明COL9A2参与IVDD的病因.
- 对COL9A2的作用的进一步研究可能会为IVDD的病原和潜在的治疗点提供新的见解.
相关概念视频
Pleiotropy
Pleiotropy is the phenomenon in which a single gene impacts multiple, seemingly unrelated phenotypic traits. For example, defects in the SOX10 gene cause Waardenburg Syndrome Type 4, or WS4, which can cause defects in pigmentation, hearing impairments, and an absence of intestinal contractions necessary for elimination. This diversity of phenotypes results from the expression pattern of SOX10 in early embryonic and fetal development. SOX10 is found in neural crest cells that form melanocytes,...
Sex-linked Disorders
Like autosomes, sex chromosomes contain a variety of genes necessary for normal body function. When a mutation in one of these genes results in biological deficits, the disorder is considered sex-linked.
The Retinoblastoma Gene
Tumor suppressor genes are normal genes that can slow down cell division, repair DNA mistakes, or program the cells for apoptosis in case of irreparable damage. Hence, they play an essential role in preventing the proliferation of damaged cells.
The first-ever tumor suppressor gene called Rb was identified in retinoblastoma - a rare eye tumor in children. In inherited forms of the disease, a child inherits one defective copy of the Rb gene, which predisposes them to retinoblastoma. However,...
The first-ever tumor suppressor gene called Rb was identified in retinoblastoma - a rare eye tumor in children. In inherited forms of the disease, a child inherits one defective copy of the Rb gene, which predisposes them to retinoblastoma. However,...
Herniated Intervertebral Disc l: Introduction
Intervertebral disc herniation refers to the displacement of the nucleus pulposus (the gel-like inner core of the disc) through a tear or weakened area in the annulus fibrosus (the outer fibrous ring). The displaced disc material extends beyond the normal boundaries of the disc space and may compress or irritate nearby spinal nerve roots or, less commonly, the spinal cord.Etiology and Risk FactorsHerniation commonly results from degeneration, in which aging reduces disc hydration and...
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
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...

