拉蒙·伊·卡哈尔和软骨生长板
M J Delgado-Martos1, B Quintana-Villamandos2, E Delgado-Baeza3
1Facultad de Ciencias Experimentales, Universidad Francisco de Vitoria, Madrid, España; Instituto de Investigación Sanitaria Gregorio Marañón, Madrid, España; Departamento de Farmacología y Toxicología, Facultad de Medicina, Universidad Complutense de Madrid, Madrid, España.
Revista espanola de cirugia ortopedica y traumatologia
|November 28, 2024
概括
圣地亚哥拉蒙和卡哈尔
科学领域:
- 历史学 历史学 历史学
- 神经科学是一个神经科学.
- 软骨生物学 软骨生物学
背景情况:
- 诺贝尔奖得主圣地亚哥·拉蒙·卡哈尔 (Santiago Ramón y Cajal) 是神经科学的先驱,他研究了各种组织.
- 他对质软骨的研究,包括星状肌肉细胞,在很大程度上被忽视了.
- 卡哈尔的组织学概念与关于细胞通信的现代分子生物学保持一致.
研究的目的:
- 重新评估圣地亚哥·拉蒙·卡哈尔在质软骨中的被忽视的发现.
- 根据卡哈尔的组织学观察,提出四个假设.
- 为了将Cajal的早期发现与当代软骨研究联系起来.
主要方法:
- 审查卡哈尔的开创性作品,特别是"正常组织学元素"和"微图技术".
- 对卡哈尔关于状软骨结构和细胞形态学的观察进行分析.
- 基于历史组织学数据和现代生物学理解的假设的制定.
主要成果:
- 介绍了来自Cajal的质软骨研究的四个假设.
- 假设侧重于状细胞柱架构,状体在骨化中的作用,软骨营养和戈尔吉器官功能.
- 突出了卡哈尔对星状红细胞的被忽视的观察.
结论:
- 圣地亚哥·拉蒙·加哈尔 (Santiago Ramón y Cajal) 对质软骨的开创性工作仍然很重要.
- 他对软骨的组织学见解预测了现代分子和细胞概念.
- 近一个世纪后,正在进行的研究继续验证卡哈尔在软骨生物学方面的基本思想.
相关概念视频
Bone Formation by Endochondral Ossification
3.9K
Bone formation, or ossification, begins around the sixth to seventh week of embryonic development. Most bones develop from a cartilaginous template through the process of endochondral ossification. Cartilage formation begins when clusters of mesenchymal cells differentiate into chondrocytes. These chondrocytes proliferate rapidly and secrete an extracellular matrix that becomes encased in a membrane called the perichondrium. The resulting cartilage model provides a template that resembles the...
3.9K
Growth of Cartilage and Bone Tissue
3.0K
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...
3.0K
Development of the Limb Synovial Joints
1.3K
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...
1.3K
Changes in the Appendicular Skeleton with Age
1.8K
The upper and lower limb initially develops as a small bulge called a limb bud, which appears on the lateral side of the early embryo. The upper limb bud appears near the end of the fourth week of development, with the lower limb bud appearing shortly after.
Initially, the limb buds consist of a core of mesenchyme covered by a layer of ectoderm. The ectoderm at the end of the limb bud thickens to form a narrow crest called the apical ectodermal ridge. This ridge stimulates the underlying...
Initially, the limb buds consist of a core of mesenchyme covered by a layer of ectoderm. The ectoderm at the end of the limb bud thickens to form a narrow crest called the apical ectodermal ridge. This ridge stimulates the underlying...
1.8K
Bone Formation by Intramembranous Ossification
5.5K
Intramembranous ossification is one of the two processes involved in the development of bones within an embryo. The flat bones of the face, most of the cranial bones, and the clavicles are formed via this process. During intramembranous ossification, the bones develop directly from sheets of undifferentiated mesenchymal connective tissue.
The process begins when mesenchymal cells in the embryonic skeleton gather together and differentiate into osteogenic cells, which then develop into ...
The process begins when mesenchymal cells in the embryonic skeleton gather together and differentiate into osteogenic cells, which then develop into ...
5.5K
Sutures of the Skull
6.3K
The human skull is composed of several bones that come together to protect the brain and support the structures of the face. The junctions where these bones meet are called sutures.
Sutures are immobile joints between adjacent bones of the skull. The narrow gap between the bones is filled with dense, fibrous connective tissue that unites the bones. The long sutures located between the skull bones are not straight but instead follow irregular, tightly twisting paths. These twisting lines tightly...
Sutures are immobile joints between adjacent bones of the skull. The narrow gap between the bones is filled with dense, fibrous connective tissue that unites the bones. The long sutures located between the skull bones are not straight but instead follow irregular, tightly twisting paths. These twisting lines tightly...
6.3K


