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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

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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...
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Drug Regulation01:25

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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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药物开发 药物开发

Takeo Kamakura1, Kazuto Yamazaki1, Akio Yamada2

  • 1Eisai Co., Ltd, Tsukuba, Ibaraki, Japan.

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概括
此摘要是机器生成的。

EphA4 (Ephrin受体A4) 与神经退行有关. 抗EphA4抗体E2025增加了人类神经细胞中的EphA4循环,证明了目标参与和潜在的治疗作用.

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科学领域:

  • 神经科学是一个神经科学.
  • 药理学 药理学是指药理学的学科.
  • 生物化学 生化学

背景情况:

  • EphA4是一种脑表达的受体氨酸激酶,与阿尔茨海默氏症等神经退行性疾病有关.
  • EphA4的激活有助于神经退行.
  • E2025是一种新型人性化抗体,旨在禁用EphA4.

研究的目的:

  • 为了研究EphA4在人类神经细胞和超级生物中的循环率.
  • 为了评估抗EphA4抗体E2025的目标接触.
  • 评估稳定同位素标记动力学 (SILK) 技术在药学动力学评估中的实用性.

主要方法:

  • 人类神经干细胞/原始细胞被培养成13C标记的白,用于内源性蛋白质标记.
  • 然后用未标记的白和E2025抗体对细胞进行了治疗.
  • 细胞和超级生物中的EphA4水平经过时间分析,使用LC/MS来确定周转率.

主要成果:

  • 治疗E2025显著增加了超级生物的EphA4产量.
  • E2025促进了细胞内的EphA4降解.
  • 根据度,E2025对EphA4的周转率进行了调节.

结论:

  • 稳定同位素标记动力学 (SILK) 技术成功证明,E2025可以依赖于EphA4的循环度增加EphA4的循环度.
  • 这种药理动力学评估表明了E2025作为治疗剂的潜力.
  • SILK方法适用于评估E2025.25的药学动力学影响.