相关实验视频
Updated: Jan 29, 2026

08:03
An In Vitro Organ Culture Model of the Murine Intervertebral Disc
Published on: April 11, 2017
10.3K
椎间盘中的乳酸代谢:机械洞察和病理影响
Ting Zhang1, Peng Feng1, Peter G Alexander1
1Department of Orthopaedic Surgery, University of Pittsburgh, Pittsburgh, PA 15213, USA.
Biomolecules
|January 28, 2026
概括
乳酸盐是脊椎间盘 (IVD) 中细胞代谢的副产品,具有作为燃料和信号分子的双重作用. 了解乳酸盐的理解
科学领域:
- 生物化学和分子生物学
- 细胞的新陈代谢
- 肌肉骨研究 研究
背景情况:
- 椎间盘 (IVD) 是最大的无血管组织,其中核脉 (NP) 细胞依赖糖解并产生乳酸.
- 传统上被视为废物,乳酸的作用现在被认为是多方面的IVD微环境.
- 细胞代谢特征,包括高乳酸生产和酸性条件,是盘细胞的特征.
研究的目的:
- 审查当前关于乳酸代谢,运输和椎间盘内清除的知识.
- 总结有关乳酸在维护磁盘健康和促进磁盘退化病理生理学的作用的新兴证据.
- 确定未来的研究方向和潜在的治疗策略,以乳酸作为IVD疾病的向.
主要方法:
- 文献综述综合了关于椎间盘中乳酸的当前研究.
- 分析乳酸生物学的既定和新兴概念,包括其作为生物燃料和信号分子的作用.
- 探索乳化作为乳酸盐表观遗传调节的机制.
主要成果:
- 乳酸作为特定IVD区域的辅助能源,特别是与NP相邻的纤维状环 (AF).
- 乳酸酸作为一个信号分子,通过乳化影响转录程序,并调节应激适应途径.
- 乳酸对细胞命运的决定和与磁盘病理生理学相关的分子通路产生影响.
结论:
- 乳酸酸在椎间盘中的生物功能是复杂的,超出了简单的代谢副产品.
- 乳酸在细胞适应,应激反应和IVD中潜在的疾病进展中发挥着关键作用.
- 对乳酸生物的进一步研究为治疗椎间盘退化治疗提供了有希望的途径.
相关概念视频
What is Metabolism?
131.7K
Overview
131.7K
Mechanistic Models: Overview of Compartment Models
373
Mechanistic models, a category encompassing both physiological and compartmental modeling, differ from empirical models' approaches to incorporating known factors about the systems being modeled. Empirical models describe data with minimal assumptions, while mechanistic models aim to provide a robust description of available data by specifying assumptions and integrating known factors about the system. Compartmental analysis is a key example of a mechanistic model in pharmacokinetics and...
373
Mechanistic Models: Compartment Models in Individual and Population Analysis
260
Mechanistic models are utilized in individual analysis using single-source data, but imperfections arise due to data collection errors, preventing perfect prediction of observed data. The mathematical equation involves known values (Xi), observed concentrations (Ci), measurement errors (εi), model parameters (ϕj), and the related function (ƒi) for i number of values. Different least-squares metrics quantify differences between predicted and observed values. The ordinary least...
260
Carbohydrate Metabolism
14.2K
Carbohydrates are polymers composed of molecules containing atoms of carbon, hydrogen and oxygen. One gram of carbohydrate can provide four kilo-calories of energy, which makes it the most efficient instant energy source.
Starch accounts for approximately 60% of the carbohydrates consumed by humans. Since amylase enzymes cannot function in the stomach's acidic environment, starch can only be digested in the mouth and small intestine. Simple sugars are found naturally in milk and fruits in...
Starch accounts for approximately 60% of the carbohydrates consumed by humans. Since amylase enzymes cannot function in the stomach's acidic environment, starch can only be digested in the mouth and small intestine. Simple sugars are found naturally in milk and fruits in...
14.2K
Mechanistic Models: Compartment Models in Algorithms for Numerical Problem Solving
306
Mechanistic models play a crucial role in algorithms for numerical problem-solving, particularly in nonlinear mixed effects modeling (NMEM). These models aim to minimize specific objective functions by evaluating various parameter estimates, leading to the development of systematic algorithms. In some cases, linearization techniques approximate the model using linear equations.
In individual population analyses, different algorithms are employed, such as Cauchy's method, which uses a...
In individual population analyses, different algorithms are employed, such as Cauchy's method, which uses a...
306
Overview of Metabolism
38.1K
Living cells constantly carry out various chemical reactions which are necessary for their proper functioning. These reactions are interlinked to one another via multiple pathways. The collection of these chemical reactions is known as metabolism.
Plant Metabolism
Sunlight, the primary source of energy in plants, is first absorbed by the chlorophyll pigments present in their leaves. Plants then use this energy to carry out photosynthesis, where water is oxidized into oxygen and carbon dioxide...
Plant Metabolism
Sunlight, the primary source of energy in plants, is first absorbed by the chlorophyll pigments present in their leaves. Plants then use this energy to carry out photosynthesis, where water is oxidized into oxygen and carbon dioxide...
38.1K

