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相关概念视频

Preclinical Development: Overview01:28

Preclinical Development: Overview

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Preclinical development consists of a series of tests that ensure the safety and efficacy of a new therapeutic compound before it is tested in humans. There are four main phases to this process. First, safety pharmacology tests are conducted to ensure the drug does not produce any acutely harmful effects. These tests examine parameters such as bronchoconstriction, cardiac dysrhythmias, blood pressure changes, and ataxia. Next, preliminary toxicological testing is performed to determine the...
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Clinical Trials: Overview01:11

Clinical Trials: Overview

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Clinical development focuses on how the drug will interact with the human body and encompasses four key phases of clinical trials, each serving a specific purpose in assessing the safety and effectiveness of new drugs. These phases overlap and build upon one another. Phase I involves a small group of healthy volunteers (typically 20-80 individuals) or, in cases where significant toxicity is expected, patients with the targeted disease, such as cancer or AIDS. The volunteers are tested for...
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Drug Discovery: Overview01:26

Drug Discovery: Overview

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Drug discovery is a multifaceted process involving extensive screening, testing, and optimization of lead compounds to identify potential new drugs for therapeutic use. It combines several approaches, including screening large numbers of natural products, chemical modification of known active molecules, identification of new drug targets, and rational design based on biological mechanisms and drug-receptor structure. These approaches are carried out in both academic research laboratories and...
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Drug Administration and Therapy Phases: Overview01:26

Drug Administration and Therapy Phases: Overview

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Drugs, the chemical agents used in diagnosing, treating, or preventing diseases, undergo a four-phase process of development: pharmaceutic, pharmacokinetics, pharmacodynamics, and therapeutic.
The pharmaceutical phase focuses on leveraging the physicochemical properties of the drug to design and manufacture an effective product. Variants include orally administered tablets or capsules, topical creams or ointments, and parenteral-delivery solutions or emulsions.
The pharmacokinetic phase...
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In Vitro Drug Release Testing: Overview, Development and Validation01:10

In Vitro Drug Release Testing: Overview, Development and Validation

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In vitro dissolution and drug release tests assess how quickly and how much of a drug is released from its dosage form into an aqueous medium under standardized laboratory conditions. These tests are essential tools in pharmaceutical development and quality assurance, offering insight into the drug's performance before clinical use.During formulation development, dissolution testing identifies incomplete or inconsistent drug release issues. It also supports decisions on selecting the optimal...
279
Drug Regulation01:25

Drug Regulation

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Drug regulation encompasses the management of drug usage by evaluating its safety and efficacy through assessments conducted by regulatory authorities. Regrettably, the history of drug regulation is marred by several catastrophic events. One such incident is the Elixir Sulfanilamide tragedy, in which the toxic compound diethyl glycol was included in a sweet-tasting medication, leading to numerous fatalities. This event prompted the enactment of the Food, Drug, and Cosmetic Act in 1938. Under...
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相关实验视频

Updated: Jan 7, 2026

Drug Repurposing Hypothesis Generation Using the "RE:fine Drugs" System
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药物开发 药物开发

Nathaniel Guanzon1, Yessenia Gallegos1, Chase Redd1

  • 1Translucence Biosystems, Inc, Irvine, CA, USA.

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概括
此摘要是机器生成的。

新的3D组织学方法可以在阿尔茨海默病模型中对粉样质斑块和微质细胞进行全脑成像. 这项技术通过绘制神经炎症和斑块沉积的地图,有助于开发中枢神经系统治疗方法.

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In Vitro Three-Dimensional Sprouting Assay of Angiogenesis Using Mouse Embryonic Stem Cells for Vascular Disease Modeling and Drug Testing
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科学领域:

  • 神经科学是一个神经科学.
  • 历史学 历史学 历史学
  • 药物发现 药物发现 药物发现

背景情况:

  • 传统的二维组织学将深层组织成像限制在特定区域.
  • 光学清除和光板成像技术的进步使整个大脑的3D细胞分辨率成为可能.
  • 3D组织学对于中枢神经系统的治疗开发至关重要,评估目标参与和有效性.

研究的目的:

  • 开发和传播先进的3D组织清除和人工智能驱动的量化方法.
  • 为了使整个大脑,粉样斑块和微质细胞的细胞分辨率分析.
  • 为了促进中枢神经系统在神经炎症和粉样沉积中的治疗功效的公正映射.

主要方法:

  • 使用基于iDISCO的组织清除套件和光板显微镜用于完整的小鼠大脑成像.
  • 用户使用的Translucence Teravoxel Toolkit (3TK) 软件用于细胞识别和3D地图册注册.
  • 开发了人工智能驱动的工作流程,用于细分微质细胞 (Iba1) 和量化粉样蛋白斑块.

主要成果:

  • 实现了微质的全脑细分,提供区域激活指标.
  • 在5xFAD小鼠模型中成功标记和量化粉样蛋白斑块.
  • 识别和量化与斑块相关的微质细胞 (PAMs),将它们的水平与斑块密度相关联.

结论:

  • 通过BRAIN倡议资助的套件和基于云的分析传播3D组织学技术.
  • 使神经科学家能够利用下一代3D免疫组织化学进行全面的中枢神经系统分析.
  • 促进对粉样蛋白和神经炎症治疗疗效的无偏见,解剖学精确的映射.