通过模板和模型对二氧化碳对人类健康的系统影响的分析
Carla M Kumbale1, Qiang Zhang2, Eberhard O Voit1,3
1Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, Georgia, United States of America.
PLoS computational biology
|March 27, 2025
概括
这项研究引入了一种新的建模方法,以了解二氧化.
科学领域:
- 环境健康 环境健康
- 毒理学 毒理学 毒理学
- 计算生物学 计算生物学
背景情况:
- 二氧化物是持久性环境污染物,已知对健康有不良影响.
- 全面了解二氧化碳对健康的系统影响仍然是一个挑战.
- 现有的研究往往侧重于特定的毒性影响,而不是整体影响.
研究的目的:
- 解决了解二氧化碳对健康的整体影响的挑战.
- 提出一个新的适应模板和 (T&A) 建模范式.
- 开发用于二氧化碳风险评估的计算工具.
主要方法:
- 利用基于模板和 (T&A) 建模范式的新方法方法 (NAM).
- 设计了一个模板模型,捕捉了二氧化碳对胆固醇代谢的系统性影响.
- 开发了模型,详细说明了二氧化碳对胆固醇运输,类固醇生成和美酸盐通路的影响.
主要成果:
- 该T&A模型提供了对二氧化系统效应的整体评估.
- 新的模型阐明了二氧化碳对胆固醇运输和性激素通路的影响.
- 综合先前开发的模型,用于检测二氧化碳对胆固醇生物合成的影响.
结论:
- 该T&A建模范式为整体毒性物质评估提供了一个强大的工具.
- 这种方法可以推进对二氧化的计算健康风险评估.
- 潜在的应用包括个性化医学和虚拟临床试验.
相关概念视频
Types of Toxins
Humans continually engage with an environment rich in potentially harmful chemicals. These are introduced to our bodies through inhalation, ingestion, or skin contact. These chemicals exist in various forms, such as air and environmental pollutants, agricultural chemicals, organic solvents, and heavy metals.
Air pollutants, primarily gases, pose significant threats to respiratory health, leading to conditions like hypoxia, lung cancer, and in extreme cases, death.
Environmental pollutants like...
Air pollutants, primarily gases, pose significant threats to respiratory health, leading to conditions like hypoxia, lung cancer, and in extreme cases, death.
Environmental pollutants like...
Toxic Reactions: Overview
When toxic substances penetrate the human body, they disseminate to various tissues, undergoing metabolic changes. This process yields reactive metabolites that may covalently bind with specific target molecules, resulting in toxicity.
Toxicity falls into two primary categories: local and systemic.
Local toxicity appears at the exposure site, such as protein denaturation caused by caustic substances.
In contrast, systemic toxicity requires the toxic agent's absorption and distribution,...
Toxicity falls into two primary categories: local and systemic.
Local toxicity appears at the exposure site, such as protein denaturation caused by caustic substances.
In contrast, systemic toxicity requires the toxic agent's absorption and distribution,...
Mechanistic Models: Compartment Models in Individual and Population Analysis
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 squares (OLS)...
Toxicity Testing in Animals
Toxicity tests in animals are grounded on two main assumptions: first, the effects observed in laboratory animals can be extrapolated to humans, especially when adjusted for body surface area; second, high-dose exposure in animals is essential to identify potential human hazards from lower doses. This is based on the quantal dose-response concept, which faces the challenge of extrapolating results from relatively few test animals to much larger human populations. For example, a 0.01% incidence...


