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Glial Cells

Glial Cells

Nervous Tissue: Glial Cells

Nervous Tissue: Glial Cells

Glia, or neuroglia, are vital support cells that assist neurons in their functions. The term "glia" originates from the Greek word for "glue," reflecting their role in holding the nervous system together. These cells can be categorized into six types: four in the central nervous system (CNS) and two in the peripheral nervous system (PNS).
The CNS glial cell includes the astrocytes, the oligodendrocytes, the microglia, and the ependymal cells.
Astrocytes are star-shaped glial cells that interact...

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Related Experiment Video

Updated: May 23, 2026

Transcranial Direct Current Stimulation (tDCS) in Mice

Transcranial Direct Current Stimulation (tDCS) in Mice

Published on: September 23, 2018

tDCS possibly stimulates glial cells.

Jarmo Ruohonen¹, Jari Karhu

¹Nexstim Ltd., Elimaenkatu 9B, 00510 Helsinki, Finland. j.o.ruohonen@gmail.com

Clinical Neurophysiology : Official Journal of the International Federation of Clinical Neurophysiology

|April 7, 2012

Summary

This summary is machine-generated.

Transcranial direct current stimulation (tDCS) may influence glial cells, potentially altering brain function and neurotransmitter balance. Further research is needed to confirm these theoretical findings in glial cells.

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Published on: January 10, 2018

Area of Science:

Neuroscience
Computational Neuroscience

Background:

Glial cells play crucial roles in brain function.
Transcranial direct current stimulation (tDCS) is a non-invasive brain stimulation technique.

Purpose of the Study:

To explore the theoretical effects of tDCS on glial cells.
To compare tDCS effects on glial cells with neuronal stimulation.

Main Methods:

Utilized simplified cable theory to model transmembrane potentials in neurons and glial cells.
Compared tDCS with established neuronal stimulation techniques.

Main Results:

Theoretical calculations suggest tDCS can alter glial transmembrane potential.
Observed changes in glial cells resemble those during neuronal activation.
Transmembrane potential changes in neurons due to tDCS are below the action potential threshold.

Conclusions:

tDCS may modulate glial cell transmembrane potential, impacting neurotransmitter balance.
This theoretical possibility suggests novel therapeutic avenues and safety considerations for tDCS.
Further physiological evidence is required to validate these findings.