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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

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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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相关实验视频

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Drug Repurposing Hypothesis Generation Using the "RE:fine Drugs" System
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药物开发 药物开发

Manmohan Singhal1, Mohit Agrawal2

  • 1Faculty of Pharmacy, School of Pharmaceutical & Population Health Informatics, DIT University, Dehradun, Uttrakhand, India.

Alzheimer's & dementia : the journal of the Alzheimer's Association
|December 25, 2025
PubMed
概括
此摘要是机器生成的。

霍登因通过改善记忆力和认知功能,对阿尔茨海默病 (AD) 产生神经保护作用. 这种天然化合物可以通过减少氧化应激和神经炎症来逆转神经退行.

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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 生物化学

背景情况:

  • 阿尔茨海默病 (AD) 是一种进展性神经退行性疾病,导致痴呆,与乙胆缺乏和氧化压力有关.
  • 研究新型治疗剂对于管理AD的认知衰退和神经病理学至关重要.

研究的目的:

  • 为了评估hordenine的抗阿尔茨海默症作用,在斯科波拉胺诱导的痴呆症的老鼠模型中.
  • 评估hordenine对AD的行为,神经化学,炎症和氧化压力标志物的影响.

主要方法:

  • 鼠被用霍登因 (50,100毫克/公斤) 或多内佩西尔 (5毫克/公斤) 治疗了七天.
  • 斯科波胺用于诱导痴呆症,随后进行行为测试和脑组织分析,以检测神经递质,乙胆酶,氧化应激和炎症标志物.

主要成果:

  • 斯科波胺诱导了认知缺陷,增加了乙胆酶活性,并增加了氧化/炎症标志物 (LPO,TNF-α,IL-1β,NF-κB).
  • 霍登因和多尼佩西尔治疗显著改善了这些变化,证明了对AD类病理的神经保护作用.
  • 霍登因治疗改善了记忆力和认知功能,减少了神经炎症,减轻了氧化应激.

结论:

  • 霍登因在老鼠中表现出显著的神经保护性,可以抵抗斯科波拉诱导的阿尔茨海默氏症样病理.
  • 霍登因可以通过减轻神经炎症,氧化应激和认知衰退来作为阿尔茨海默病的治疗候选者.
  • 对霍登因在阿尔茨海默病中逆转神经退行过程的潜力进行进一步的研究是有必要的.