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Related Concept Videos

Methods for Studying Drug Absorption: In situ01:09

Methods for Studying Drug Absorption: In situ

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In situ experiments, such as the Doluisio method and Single-Pass Perfusion technique, provide critical insights into drug uptake by simulating in vivo conditions for drug absorption.
The Doluisio method involves perfusing a prepared segment of a rat's small intestine with a solution of radiolabeled drug and a non-absorbable marker. This helps to differentiate between absorbed and non-absorbed drug concentrations. The intestinal segment is connected at both ends using tubing and syringes,...
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Methods for Studying Drug Absorption: In vitro01:16

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In vitro experiments are crucial for understanding the transport and absorption of drugs through biological materials. These studies employ varied methods such as the diffusion cell method, the everted sac technique, and the everted ring technique.
The diffusion cell method uses a two-compartment cell, including a donor compartment with the drug solution, which simulates the environment where the drug is applied, and a receptor compartment with a buffer solution, which simulates the environment...
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Related Experiment Video

Updated: Dec 6, 2025

Functional Assessment of Intestinal Permeability and Neutrophil Transepithelial Migration in Mice using a Standardized Intestinal Loop Model
09:24

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Visualising and quantifying intestinal permeability -where do we stand.

Monica Rusticeanu1, Vincent Zimmer2, Frank Lammert3

  • 1Department of Medicine, Krankenhaus Vilshofen, Krankenhausstrasse 32, 94474 Vislhofen an der Donau, Germany.

Annals of Hepatology
|October 12, 2020
PubMed
Summary
This summary is machine-generated.

Assessing intestinal permeability requires methods that evaluate barrier integrity. Confocal laser endomicroscopy offers a unique in vivo view of both functional and morphological aspects of the gut barrier.

Keywords:
CLEfunctional imagingintestinal imagingintestinal permeabilityliver cirrhosis

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Area of Science:

  • Gastroenterology
  • Microscopy
  • Biomedical Imaging

Background:

  • Intestinal permeability is crucial in gastrointestinal research, but its precise role in health and disease remains unclear.
  • Current methods for quantifying intestinal permeability often lack information on the morphological integrity of the intestinal barrier.
  • There is a need for advanced techniques to assess the gut barrier's structural and functional status.

Purpose of the Study:

  • To review imaging options for assessing intestinal barrier integrity.
  • To discuss the clinical relevance of these imaging techniques.
  • To highlight confocal laser endomicroscopy as a key method for evaluating the gut barrier.

Main Methods:

  • Review of existing literature on imaging techniques for intestinal barrier assessment.
  • Focus on confocal laser endomicroscopy (CLE) capabilities.
  • Discussion of in vivo visualization of the gut barrier.

Main Results:

  • Confocal laser endomicroscopy provides in vivo visualization of the intestinal barrier.
  • CLE allows assessment of both functional and morphological aspects of gut barrier integrity.
  • This technique offers a more comprehensive evaluation compared to traditional methods.

Conclusions:

  • Confocal laser endomicroscopy is a promising tool for evaluating intestinal barrier integrity.
  • Its ability to visualize morphological and functional aspects in vivo holds significant clinical potential.
  • Further research and application of CLE could advance our understanding and management of gastrointestinal diseases.