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相关概念视频

Preclinical Development: Overview01:28

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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 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 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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Drugs, the chemical agents used in diagnosing, treating, or preventing diseases, undergo a four-phase process of development: pharmaceutic, pharmacokinetics, pharmacodynamics, and therapeutic.
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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

Marina Bykova1,2, Reina Tonegawa Kuji3, Ehud Karavani4

  • 1Lerner Research Institute, Cleveland Clinic Foundation, Cleveland, OH, USA.

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概括
此摘要是机器生成的。

网络医学确定了多西环林作为预防老年人和创伤性脑损伤 (TBI) 患者阿尔茨海默病 (AD) 的潜在治疗方法. 这种方法结合了基因数据和电子健康记录,以找到可重复使用的药物.

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科学领域:

  • 计算生物学和生物信息学
  • 神经科学和神经退行性疾病
  • 药理学和药物发现

背景情况:

  • 创伤性脑损伤 (TBI) 是阿尔茨海默病 (AD) 的重要危险因素,但有效的治疗方法仍然有限.
  • 整合基因组数据和电子健康记录 (EHR) 的网络医学技术在识别药物重定向候选人方面表现有前途.
  • 这项研究的重点是预防老年人群和有TBI病史的人群的AD.

研究的目的:

  • 通过基于网络的方法识别潜在的药物重定向候选人来预防阿尔茨海默病 (AD).
  • 通过对大规模真实世界患者数据的分析来验证网络预测的药物.
  • 调查已识别的药物在降低风险人群中AD发病率方面的疗效.

主要方法:

  • 一个基于网络的算法评估了蛋白质-蛋白质相互作用组 (PPI) 网络中的基因组连接性,使用换测试.
  • 该算法将人类互动组和药物向网络联系起来,以对潜在的药物候选者进行排名.
  • 顶级候选人使用MarketScan®保险索赔数据进行评估,重点是70岁以上的患者.

主要成果:

  • 网络分析生成了基于69个TBI和144个AD基因的排名药物清单.
  • 与抗感染药物和抗生素相比,多西环林处方与AD发展的风险显著降低 (RR=0.92,p=0.002).
  • 潜在的机制包括微质活动的调节和血脑屏障完整性.

结论:

  • 将基于网络的预测与现实世界患者数据相结合,有效地确定了用于AD预防的可重用药物.
  • 多西环林成为预防阿尔茨海默病的有希望的候选治疗方法.
  • 这项研究强调了网络医学在神经退行性疾病的药物发现方面的潜力.