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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

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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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药物开发 药物开发

Linda Jo Van Eldik1, Saktimayee M Roy2, Ottavio Arancio3

  • 1University of Kentucky, Lexington, KY, USA.

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概括
此摘要是机器生成的。

研究人员开发了新的小分子,以向像阿尔茨海默氏症 (AD) 这样的神经退行性疾病中的大脑炎症. 目前有三种候选药物正在临床试验中,为新的治疗策略提供了希望.

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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.
  • 药物发现 药物发现 药物发现

背景情况:

  • 失调的大脑炎症,特别是促炎性细胞因子过度产生,是神经退行性疾病 (如阿尔茨海默氏症) 的关键驱动因素.
  • 这种神经炎症与激活的质细胞和突触功能障碍有关,突出显示了治疗干预的必要性.
  • 中枢神经系统 (CNS) 的不有效,过度或长时间的炎症反应可能会对平衡有害.

研究的目的:

  • 发现和开发新的药理学药剂,可以减轻失调的促炎性细胞因子生产.
  • 通过调节关键炎症通路来恢复质神经元平衡.
  • 确定针对疾病进展相关的特定细胞因子板的治疗候选者.

主要方法:

  • 利用无偏见的表型和单分子标方法来进行药物发现.
  • 在药物信息学的指导下,设计和合成基于皮里达化学型的小分子.
  • 采用复杂查,药物化学,二次药理学测试,以及动物模型中的体内疗效研究.

主要成果:

  • 开发了一系列候选药物,表现出口服生物可用性和脑部暴露.
  • 在中枢神经系统疾病的动物模型中,在低剂量下显示出有希望的安全性和有效性.
  • 三种治疗候选药物 (MW150,MW151,MW189) 已进入人类1b/2a期临床试验.

结论:

  • 强调了将药物发现重点放在疾病相关的病理生理学和战略化合物设计的重要性.
  • 强调需要针对辅助性疾病驱动因素的干预措施,以及针对AD等复杂疾病的适当治疗窗口.
  • 验证了细胞因子/突触功能障碍轴作为神经退行性疾病进展中治疗干预的可行目标.