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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 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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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 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

Andrea Mosqueda Solis1, Simone Tambaro2, Bowen Tang1

  • 1Karolinska Institutet, Solna, Sweden.

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PubMed
概括
此摘要是机器生成的。

重用常见药物,如通道阻断剂 (CCB) 和GLP-1类似物,可以通过向衰老过程来帮助预防或延迟阿尔茨海默病 (AD). 这些药物显示出降低衰老标志物和AD相关病理的潜力.

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科学领域:

  • 老年学是一门学科.
  • 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.

背景情况:

  • 老龄化是阿尔茨海默病 (AD) 的主要危险因素.
  • 现有的高血压和糖尿病药物可能会影响衰老,并可能延迟AD.
  • 药物再利用为AD预防和治疗提供了一种新的策略.

研究的目的:

  • 调查常见处方药物预防或延迟阿尔茨海默病 (AD) 的潜力.
  • 评估药物对生物衰老和AD相关病态的影响.
  • 通过调节衰老来识别AD预防的候选药物.

主要方法:

  • 来自瑞典双胞胎队列 (N=672) 的纵向数据的分析,以评估药物对生物衰老的影响.
  • 在基因型和国家注册数据上应用因果推断方法,以确定AD预防药物候选药物.
  • 在体内和体外验证使用C. elegans模型,神经母细胞瘤细胞系和App和tau敲入小鼠模型.

主要成果:

  • 通道阻断剂 (CCB) 与表观遗传和功能衰老标志物的两年减少有关.
  • 葡萄糖类1 (GLP-1) 和GLP-1模拟治疗中的遗传变异与减少AD和痴呆风险相关.
  • CCBs和GLP-1类似物在C. elegans中延长了寿命,并在体外降低了粉样β (Aβ) 水平,同时延迟了tau诱导的无协调运动.

结论:

  • CCBs和GLP-1类似物显示出作为可能延迟AD的抗衰老药物具有前途.
  • 进一步的研究将包括测试这些候选药物在App和tau敲门鼠标模型中.
  • 重新利用抗衰老药物为阿尔茨海默病提供了潜在的新疗法策略.