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Related Concept Videos

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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Structure-Activity Relationships and Drug Design01:28

Structure-Activity Relationships and Drug Design

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Drug design is a dynamic field that involves discovering and developing new medications based on specific biological targets. This process heavily relies on structure-activity relationships (SAR) and quantitative structure-activity relationships (QSAR) to guide the design and optimization of efficient drugs.
SAR studies the intricate relationship between a drug's chemical structure and biological activity. It focuses on understanding how modifications to a drug's structure can influence...
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Drug Clearance: Overview01:06

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Drug elimination refers to drug removal from the body, either through urine or bile, by the kidneys or liver, respectively. A pharmacokinetic parameter, drug clearance, measures the efficiency of drug removal from the bloodstream within a specific time frame. It is calculated as the rate at which a drug is eliminated from plasma divided by the drug's concentration in plasma.
Drug clearance is not limited to renal excretion but encompasses all organs involved in drug elimination, including...
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Drug Accumulation During Multiple Dosing: Repetitive IV Injections01:21

Drug Accumulation During Multiple Dosing: Repetitive IV Injections

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Calculating drug dosage and accumulation in multiple-dose regimens is crucial for achieving therapeutic efficacy while avoiding toxicity. This involves determining the plasma drug concentrations over time to optimize dosing schedules. The principle of superposition is fundamental in this process, allowing for the prediction of drug concentration in plasma following multiple doses based on single-dose data.The principle of superposition asserts that the plasma concentration-time curves from...
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Drug Biotransformation: Overview01:16

Drug Biotransformation: Overview

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Pharmaceutical substances known as xenobiotics are predominantly lipophilic and nonionized. This enables them to permeate lipid bilayers, such as cell membranes, and interact with intracellular target receptors. Lipophilic drugs have an advantage in crossing biological barriers and reaching their intended sites of action. However, lipophilic drugs often have a restricted capacity for renal expulsion or elimination from the body. When these drugs enter the kidneys and undergo glomerular...
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Targets for Drug Action: Overview01:26

Targets for Drug Action: Overview

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Drugs target macromolecules to modify ongoing cellular processes. Primary drug targets include receptors, ion channels, transporters, and enzymes.
Receptors are either membrane-spanning or intracellular proteins, which upon binding a ligand, get activated and transmit the signal downstream to elicit a response. Drugs bind receptors, either mimicking the action of endogenous ligands or blocking the receptor activity to bring about a modified response. Nearly 35% of approved drugs target the G...
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Related Experiment Video

Updated: Dec 14, 2025

Drug Repurposing Hypothesis Generation Using the "RE:fine Drugs" System
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Transfer Learning for Drug Discovery.

Chenjing Cai1, Shiwei Wang2, Youjun Xu3

  • 1Center for Quantitative Biology, Academy for Advanced Interdisciplinary Studies, Peking University, Beijing 100871, P. R. China.

Journal of Medicinal Chemistry
|July 17, 2020
PubMed
Summary
This summary is machine-generated.

Small datasets hinder artificial intelligence in drug discovery. Transfer learning, particularly deep transfer learning, offers a solution by leveraging existing knowledge to train models with limited data, accelerating drug discovery efforts.

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Area of Science:

  • Computational chemistry
  • Machine learning
  • Drug discovery

Background:

  • Drug discovery is hampered by small, sparse datasets for AI model training.
  • Developing AI algorithms that handle heterogeneous and scarce data is crucial.
  • Transfer learning offers a promising approach to overcome data limitations.

Purpose of the Study:

  • To provide an overview of transfer learning in drug discovery.
  • To highlight current applications of transfer learning in the field.
  • To discuss future directions for transfer learning in drug discovery.

Main Methods:

  • Review of transfer learning techniques.
  • Analysis of deep transfer learning applications in drug discovery.
  • Exploration of methods for handling scarce and heterogeneous data.

Main Results:

  • Transfer learning effectively leverages existing knowledge for new tasks.
  • Deep transfer learning is widely adopted in AI-driven drug discovery.
  • The approach shows potential for improving model performance with limited data.

Conclusions:

  • Transfer learning is a key strategy to address data scarcity in drug discovery.
  • Future developments in transfer learning will further enhance AI capabilities.
  • This technique is vital for advancing artificial-intelligence-assisted drug discovery.