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Related Experiment Video

Updated: May 22, 2026

Exploring Deep Space - Uncovering the Anatomy of Periventricular Structures to Reveal the Lateral Ventricles of the Human Brain

Exploring Deep Space - Uncovering the Anatomy of Periventricular Structures to Reveal the Lateral Ventricles of the Human Brain

Published on: October 22, 2017

Innervation of ventricular and periventricular brain compartments.

Rehana K Leak¹, Robert Y Moore

¹Division of Pharmaceutical Sciences, Mylan School of Pharmacy, Duquesne University, Pittsburgh, PA 15282, USA. leakr@duq.edu

|May 12, 2012

Summary

Cerebrospinal fluid (CSF) acts as a pathway for volume transmission, allowing neuroactive substances to travel long distances in the brain. This study used Cholera toxin, ß subunit (CTß) to identify brain regions communicating with the CSF.

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Published on: May 6, 2010

Area of Science:

Neuroscience
Cell Biology
Neuroanatomy

Background:

Synaptic transmission occurs via wiring or volume transmission.
Volume transmission involves neurotransmitters traveling longer distances, including via cerebrospinal fluid (CSF).
The origin of most neuroactive substances in CSF remains unknown.

Purpose of the Study:

To identify brain regions that communicate with the ventricular cerebrospinal fluid (CSF).
To investigate the role of CSF in volume transmission.

Main Methods:

Retrograde neuronal labeling in rat brains using Cholera toxin, ß subunit (CTß) injected into the ventricles.
Analysis of neuronal perikarya distribution at different time points post-injection.

Main Results:

Initial non-specific staining near the ventricular surface within 15-30 minutes.
Extensive labeling of neuronal cell bodies in the telencephalon, thalamus, hypothalamus, and brainstem within 2-10 days.
Identified specific nuclear groups at considerable distances from the ventricles.

Conclusions:

Ventricular cerebrospinal fluid (CSF) serves as a significant route for volume transmission.
The study identifies key brain regions involved in CSF-mediated volume transmission.