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Updated: May 29, 2026
08:47
Microdialysis of Excitatory Amino Acids During EEG Recordings in Freely Moving Rats
Published on: November 8, 2018
Neuropeptide microdialysis in free-moving animals
Tetsuya Kushikata1, Kazuyoshi Hirota
1Department of Anesthesiology, Hirosaki University Hospital, Hirosaki, Japan. tetsuyak@cc.hirosaki-u.ac.jp
Methods in Molecular Biology (Clifton, N.J.)
|September 17, 2011
Summary
Microdialysis is a technique for collecting extracellular fluid in vivo. It is now widely used to quantify large molecules like neuropeptides and hormones in the brain.
Area of Science:
- Neuroscience
- Biochemistry
Background:
- Microdialysis collects extracellular fluid using a semipermeable membrane.
- Initially developed for measuring biogenic amines in rat brains.
- Recent advancements improved membrane quality and detection limits.
Purpose of the Study:
- To describe the principle of microdialysis.
- To outline the preparation of a microdialysis system.
- To explain sample collection from free-moving animal brains.
Main Methods:
- In vivo microdialysis.
- Use of semipermeable membranes for fluid collection.
- Application in free-moving animals.
Main Results:
- Successful collection of extracellular fluid.
- Quantification of various compounds, including biogenic amines.
- Expanded capability to measure large molecules like neuropeptides and hormones.
Conclusions:
- Microdialysis is a versatile technique for in vivo neurochemical analysis.
- Improved methods allow for the quantification of diverse molecules.
- The technique is crucial for studying brain function in free-moving subjects.
