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Related Concept Videos

The Blood-brain Barrier

The Blood-brain Barrier

Physiological Barriers

Physiological Barriers

Physiological barriers are semi-permeable cellular structures restricting drug diffusion into intracellular compartments and tissues. There are six types of physiological barriers: blood endothelial, cell membrane, blood-brain, blood-cerebrospinal fluid (CSF), blood-placenta, and blood-testis barriers.
The blood endothelial barrier is the most porous of these. It allows all small ionized, un-ionized, and lipophilic molecules to pass through the endothelial lining into the interstitial space...

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Related Experiment Video

Updated: Nov 13, 2025

An In Vivo Blood-brain Barrier Permeability Assay in Mice Using Fluorescently Labeled Tracers

An In Vivo Blood-brain Barrier Permeability Assay in Mice Using Fluorescently Labeled Tracers

Published on: February 26, 2018

Not all mouse blood-brain barriers are created equal

James Felker^1,2, Sameer Agnihotri^3,4

¹Department of Pediatrics, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA.

|March 13, 2021

Summary

No abstract available in PubMed .

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