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Two-Compartment Open Model: Extravascular Administration01:12

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Bioavailability Enhancement: Drug Permeability Enhancement01:27

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Body:After oral administration, poor permeability often limits the rate at which drugs are absorbed through the intestinal epithelium. Enhancing drug permeability is crucial for effective therapy, and several strategies have been developed to overcome this challenge.One effective strategy involves the use of lipid-based formulations. These formulations enhance dissolution and solubility, targeting physiological mechanisms to increase drug absorption. This includes stimulating bile salt...
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The three-compartment open model is a pharmacokinetic model used to describe the distribution and elimination of drugs following extravascular administration. It comprises a central compartment representing the plasma and two peripheral compartments. The highly perfused peripheral compartment represents organs and tissues with a rich blood supply, such as the liver, kidneys, and lungs. The scarcely perfused peripheral compartment represents tissues with lower blood supply, such as adipose...
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Factors Affecting Drug Distribution: Tissue Permeability01:30

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The drug distribution process within the human body is a complex interplay of various physicochemical properties inherent to the drugs. These properties, including molecular size, ionization degree, partition coefficient, and stereochemical nature, significantly impact how drugs permeate biological membranes to reach their target tissues.
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Updated: Feb 27, 2026

A Method for Determination and Simulation of Permeability and Diffusion in a 3D Tissue Model in a Membrane Insert System for Multi-well Plates
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Quantitative structure-skin permeability relationships.

Ivanka Tsakovska1, Ilza Pajeva1, Merilin Al Sharif1

  • 1Institute of Biophysics and Biomedical Engineering, Bulgarian Academy of Sciences, Acad G. Bonchev Str., bl. 21, Sofia 1113, Bulgaria.

Toxicology
|June 25, 2017
PubMed
Summary
This summary is machine-generated.

This review covers computational models for predicting skin permeability, focusing on quantitative structure-permeability relationships and mechanistic approaches. It highlights model strengths, limitations, and future research directions in silico.

Keywords:
Dermal absorptionMathematical modellingPermeabilityQSPRSkinStratum corneum

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Area of Science:

  • Pharmacokinetics and Drug Delivery
  • Computational Chemistry
  • Dermatology

Background:

  • Predicting skin permeability is crucial for topical and transdermal drug development.
  • In silico models offer a promising alternative to traditional in vitro and in vivo methods.
  • A need exists for comprehensive reviews of available predictive models.

Purpose of the Study:

  • To review and discuss current in silico models for skin permeability prediction.
  • To focus on quantitative structure-permeability relationships (QSPR) and mechanistic models.
  • To analyze comparative studies and highlight model limitations and strengths.

Main Methods:

  • Literature review of in silico models for skin permeability.
  • Discussion of quantitative structure-permeability relationships (QSPR) models.
  • Analysis of mechanistic models and comparative studies.

Main Results:

  • Various QSPR and mechanistic in silico models exist for skin permeability prediction.
  • Different models exhibit varying strengths and limitations.
  • Comparative studies reveal performance differences across models.

Conclusions:

  • In silico models are valuable tools for predicting skin permeability.
  • Understanding model strengths and limitations is key for effective application.
  • Further research is needed to address emergent issues and refine predictive accuracy.