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相关概念视频

ER Retrieval Pathway01:45

ER Retrieval Pathway

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In the secretory pathway, vesicles transport proteins from one cellular compartment to another in forward transport to deliver the protein to its correct location. Occasionally, misfolded proteins and incorrect proteins escape their original compartments, and a retrieval pathway is used to return the escaped proteins to their original compartment.
The ER uses many checkpoints to prevent the entry of incorrectly folded or a resident protein as cargo onto a transport vesicle. These mechanisms...
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Bioequivalence: Overview01:16

Bioequivalence: Overview

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Pharmaceutical equivalents, by definition, are drug products with the same active ingredient in the same quantities, encapsulated in identical dosage forms, and intended for the same administration routes. These pharmaceutical equivalents are deemed bioequivalent if the bioavailability of the active entity in the drug preparations is similar. Moreover, pharmaceutical equivalents demonstrating bioequivalence are also regarded as therapeutically equivalent. This means that when used as directed,...
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Drug-Receptor Bonds01:25

Drug-Receptor Bonds

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Drug-receptor bonds are formed through various chemical forces when drugs interact with target cells. Covalent bonds, strong and irreversible, are exemplified by DNA-alkylating anticancer agents that inhibit cell division. However, such irreversible drug binding lacks selectivity and can modify the DNA of the surrounding healthy cells. Covalent binding often contributes to tissue toxicity, as seen with chloroform and paracetamol metabolites binding to the liver, causing hepatotoxicity.
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Transducer Mechanism: Enzyme-Linked Receptors01:27

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Enzyme-linked receptors are cell-surface receptors acting as an enzyme or associating with an enzyme intracellularly. They make excellent drug targets. Drugs can bind to the extracellular ligand-binding domain or directly affect their enzymatic domain and alter their activity.
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RNA-seq03:21

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RNA sequencing, or RNA-Seq, is a high-throughput sequencing technology used to study the transcriptome of a cell. Transcriptomics helps to interpret the functional elements of a genome and identify the molecular constituents of an organism. Additionally, it also helps in understanding the development of an organism and the occurrence of diseases. 
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Synthetic biology is an interdisciplinary science that involves using principles from disciplines such as engineering, molecular biology, cell biology, and systems biology. It involves remodeling existing organisms from nature or constructing completely new synthetic organisms for applications such as protein or enzyme production, bioremediation, value-added macromolecule production, and the addition of desirable traits to crops, to name a few.
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Updated: Jul 13, 2025

A Knowledge Graph Approach to Elucidate the Role of Organellar Pathways in Disease via Biomedical Reports
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学习实体为生物医学关系提取的面向学习实体的表示.

Ying Hu1, Yanping Chen1, Yongbin Qin1

  • 1Text Computing and Cognitive Intelligence Engineering Research Center of National Education Ministry, State Key Laboratory of Public Big Data, College of Computer Science and Technology, Guizhou University, Guiyang, 550025, China.

Journal of biomedical informatics
|October 18, 2023
PubMed
概括
此摘要是机器生成的。

本研究引入了一个面向实体的表示 (EoR) 模型,通过减少语义重叠来改善生物医学关系提取. 这种EoR模型增强了实体对之间的区别性,在多个任务中实现了最先进的结果.

关键词:
生物医学自然语言处理提取信息 提取信息重叠的语义重叠的语义.

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科学领域:

  • 计算生物学是一种计算生物学.
  • 生物信息学是一种生物信息学.
  • 自然语言处理自然语言处理.

背景情况:

  • 生物医学关系提取 (BioRE) 对生物医学研究至关重要.
  • 现有的方法在多个实体对的句子中与重叠的语义作斗争.
  • 重叠的语义导致不同实体对的类似信息,阻碍了准确性.

研究的目的:

  • 提出一种新的学习实体导向表示 (EoR) 模型,以提高 BioRE 的性能.
  • 改善在共享相同背景的实体对之间进行区分.
  • 为了应对BioRE中重叠语义的挑战.

主要方法:

  • 开发了一个由三个模块组成的模型:句子表示,面向实体的表示和输出.
  • 面向实体的表示模块侧重于与目标实体相关的语义信息.
  • 输出模块增强了实体对之间的区分能力,用于关系分类.

主要成果:

  • 在四个BioRE任务中,EoR模型实现了最先进的性能:蛋白质-蛋白质相互作用 (PPI),药物-药物相互作用 (DDI),化学-蛋白质相互作用 (CPI) 和疾病-表型相互作用 (DPI).
  • 在八个不同的BioRE数据集上进行了实验.
  • 进一步的分析证实了面向实体的语义信息在处理具有多个实体对的复杂句子时的好处.

结论:

  • 拟议的实体导向表示 (EoR) 模型显著改善了生物医学关系提取.
  • EdR有效地提高了实体对的可区分性,克服了重叠语义的局限性.
  • 这种方法为复杂的生物医学文本中准确的关系提取提供了强大的解决方案.