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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

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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

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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

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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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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

Yichen Li1, Dhruv Gohel1, Andrew A Pieper2

  • 1Cleveland Clinic, Cleveland, OH, USA.

Alzheimer's & dementia : the journal of the Alzheimer's Association
|December 26, 2025
PubMed
概括
此摘要是机器生成的。

西尔德纳菲尔显示出降低阿尔茨海默氏症的潜力.

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科学领域:

  • 神经科学和药理学 神经科学和药理学
  • 药物重用 药物重用

背景情况:

  • 西尔德纳菲尔 (一种固酶5型抑制剂) 之前被计算识别为潜在的阿尔茨海默病 (AD) 治疗方法.
  • 锡尔德纳菲尔在阿尔茨海默病中的临床有效性和精确作用机制尚不清楚.

研究的目的:

  • 为了调查西尔德纳菲尔对阿尔茨海默病发病率的现实影响.
  • 阐明西尔代纳菲尔在阿尔茨海默病中的潜在保护作用背后的作用机制.

主要方法:

  • 分析大规模的真实世界患者数据 (MarketScan和OPTUM数据库).
  • 使用阿尔茨海默病患者衍生的诱导多能干细胞 (iPSC) 模型 (神经元和器官).
  • 使用5xFAD转基因小鼠模型进行体内研究,包括行为测试和分子分析 (免疫光,单细胞RNA-seq).

主要成果:

  • 西尔德纳菲尔的使用与大患者队列中AD诊断的可能性降低有显著的相关性.
  • 在细胞模型中,西尔代纳菲尔降低了AD的关键病理标志物,如酸化和GSK-3b.
  • 在AD的小鼠模型中,西尔德纳菲尔治疗改善了认知功能,并减少了粉样质斑块负担.

结论:

  • 现实世界的数据,iPSC模型和动物研究总的来说表明,西尔代纳菲尔是治疗阿尔茨海默症的有希望的重定向药物.
  • 进一步的临床试验至关重要,以验证西尔德纳菲尔在阿尔茨海默病的预防和治疗中的疗效和因果作用.