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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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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

Saif Ahmad Khan1, Zufika Qamar1, Neha Bhardwaj2

  • 1Jamia Hamdard, New Delhi, Delhi, India.

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PubMed
概括
此摘要是机器生成的。

这项研究开发了纳米结构脂质载体 (NLCs),用于鼻内输送布基胆酶 (RV) 和激酶抑制剂 (KI),用于治疗阿尔茨海默病 (AD). 该RV-KI-NLC配方有效地逆转了AD类症状和保护神经元.

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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.
  • 生物技术是生物技术.

背景情况:

  • 阿尔茨海默病 (AD) 是一种进展性神经退行性疾病,治疗选择有限.
  • 纳米结构脂质载体 (NLC) 的鼻内输送可以提高药物的生物可用性到大脑.
  • 这项研究重点是针对针对性AD治疗的NLCs载有布基胆化酶 (RV) 和激酶抑制剂 (KI).

研究的目的:

  • 研究RV-KI-NLCs在阿尔茨海默病 (AD) 治疗中的有效性.
  • 评估RV-KI-NLC配方的神经保护和认知增强效应.
  • 评估RV-KI-NLCs的药理动力学,生物分布和药理动力学特性.

主要方法:

  • 使用修改后的乳化方法开发和表征NLC.
  • 在Wistar大鼠中使用了斯科波拉胺诱导的AD类症状模型.
  • 进行了药理动力学,生物分布,药理动力学 (NOR,EPM),免疫组织化学,组织病理学和抗氧化剂 (DPPH) 测定.

主要成果:

  • RV-KI-NLCs表现出显著的神经保护,减轻斯科波拉胺诱导的神经损伤和炎症.
  • 用RV-KI-NLCs治疗减少了关键的AD生物标志物 (BACE1,TNF-α) 并改善了神经元完整性.
  • 在NOR和EPM测试中观察到认知和行为功能的显著改善,与抗氧化剂活性相关.

结论:

  • 在AD模型中,RV-KI-NLC配方表现出卓越的神经保护作用和认知增强.
  • 鼻内输送RV-KI-NLCs代表了阿尔茨海默病的有前途的治疗策略.
  • 该配方的强烈抗氧化活性有助于其在缓解AD病理方面的整体有效性.