相关实验视频
Updated: Jan 31, 2026

13:19
Deep Neural Networks for Image-Based Dietary Assessment
Published on: March 13, 2021
10.0K
超级SBINN:一个超级网络增强的系统生物信息神经网络,用于高效的药物心脏安全评估
Inass Soukarieh1,2, Gerhard Hessler3, Hervé Minoux1
1Sanofi, Digital R&D, Vitry-Sur-Seine, France.
概括
一个新的hyperSBINN模型使用元学习和神经网络来加快心脏动作潜力 (CAP) 预测用于药物发现. 这种计算工具有效地模拟了药物对心脏的影响,有助于临床前开发.
科学领域:
- 计算毒理学计算毒理学
- 系统生物学 系统生物学
- 药理学 药理学是指药理学的学科.
背景情况:
- 心脏动作潜能 (CAP) 的数学模型对于理解药物对心脏健康的影响至关重要.
- 模型的复杂性往往阻碍了它们在早期药物发现中的使用.
- 需要高效的计算工具来预测心脏电生理学上的复合效应.
研究的目的:
- 引入一种用于解决参数化CAP模型的新方法,使用元学习和系统生物学信息的神经网络 (SBINNs).
- 开发一个计算框架,hyperSBINN,用于快速准确地预测药物对CAP的影响.
- 加强系统毒理学在临床前药物开发中的应用.
主要方法:
- 开发了hyperSBINN,一种混合方法,将元学习与SBINN结合起来.
- 应用该模型来预测各种化合物在不同度下对CAPs的影响.
- 评估模型性能与传统的微分方程解答器相比,重点是预测APD90值的速度和准确性.
主要成果:
- 在速度方面,hyperSBINN模型明显优于传统的微分方程解决器.
- 该模型在预测APD90值方面表现强,即使数据有限.
- 成功处理与心脏电生理学相关的复杂参数微分方程.
结论:
- hyperSBINN为心脏电生理学建模提供了一个可扩展和高效的解决方案.
- 计算建模的进步有助于理解复杂的生物系统,并支持临床前药物开发.
- 这种方法显示了作为预测药物诱导心脏毒性的可靠工具的希望.
相关概念视频
Bioavailability Enhancement: Drug Solubility Enhancement
258
Body:Bioavailability is a critical factor in determining a drug's effectiveness. It refers to the proportion of a drug that enters the circulation when introduced into the body and is, as a result, able to have an active effect. Enhancing bioavailability is essential for drugs with poor solubility, as it can significantly impact their therapeutic efficacy. Various methods are employed to increase the solubility of drugs, thereby enhancing their bioavailability.Micronization and nanonization are...
258
Bioavailability Enhancement: Drug Permeability Enhancement
203
Body:After oral administration, poor permeability often limits the rate at which drugs are absorbed through the intestinal epithelium. Enhancing drug permeability is crucial for effective therapy, and several strategies have been developed to overcome this challenge.One effective strategy involves the use of lipid-based formulations. These formulations enhance dissolution and solubility, targeting physiological mechanisms to increase drug absorption. This includes stimulating bile salt...
203
Bioavailability Enhancement: Drug Stability Enhancement and GI Retention
217
Body:Improving a drug's stability in the gastrointestinal (GI) tract is paramount for enhancing its bioavailability and therapeutic effectiveness. Various strategies are employed to protect the drug from the harsh gastric milieu and to ensure its release and absorption at the desired site within the GI tract.Polymer coatings are one such method used to shield drugs from the stomach's acidic environment. By preventing premature drug release, these coatings improve the bioavailability of unstable...
217
Factors Affecting Drug Biotransformation: Biological
581
Biological factors significantly impact drug metabolism, influencing drug clearance, efficacy, and potential toxicity.
Species differences: Variations in enzyme systems across species can cause disparities in drug metabolism. For instance, humans may metabolize certain drugs faster than rodents, altering therapeutic effects.
Strain differences: Genetic variations within a species can result in differing enzyme activity, impacting drug response and toxicity. For example, some mouse strains may...
Species differences: Variations in enzyme systems across species can cause disparities in drug metabolism. For instance, humans may metabolize certain drugs faster than rodents, altering therapeutic effects.
Strain differences: Genetic variations within a species can result in differing enzyme activity, impacting drug response and toxicity. For example, some mouse strains may...
581
Protein Networks
4.5K
An organism can have thousands of different proteins, and these proteins must cooperate to ensure the health of an organism. Proteins bind to other proteins and form complexes to carry out their functions. Many proteins interact with multiple other proteins creating a complex network of protein interactions.
These interactions can be represented through maps depicting protein-protein interaction networks, represented as nodes and edges. Nodes are circles that are representative of a protein,...
These interactions can be represented through maps depicting protein-protein interaction networks, represented as nodes and edges. Nodes are circles that are representative of a protein,...
4.5K
Drug Products: Biologics, Biosimilars and Interchangeables
276
Body:Biologics, derived from living sources such as humans, animals, or microorganisms, represent a significant category of pharmaceuticals. These complex molecules, developed through advanced biotechnological methods or purified from natural sources, include essential medical treatments like insulin and growth hormones. The complexity of biologics arises from their large molecular structures and the intricate processes required for their production, making them distinct from conventional...
276

