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Effects of glycerol injection into rat sciatic nerve
J M Vallat1, M J Leboutet, A Loubet
1Department of Neurology, University Hospital, Limoges, France.
Muscle & Nerve
|June 1, 1988
Summary
Pure glycerol injections into nerves cause fiber destruction and nerve degeneration. This study reveals glycerol
Area of Science:
- Neuroscience
- Histology
Background:
- Trigeminal neuralgia is treated with glycerol injections into the trigeminal cistern.
- The mechanism of action for glycerol therapy is not fully understood.
Purpose of the Study:
- To investigate the effects of pure glycerol microinjections on nerve tissue.
- To elucidate the cellular and structural changes induced by glycerol in peripheral nerves.
Main Methods:
- Microinjections of sterile, pure glycerol into the endoneurium of rat sciatic nerves.
- Analysis using light and electron microscopy.
Main Results:
- Complete destruction of myelinated and unmyelinated nerve fibers observed.
- Rapid onset of nerve degeneration and perineurial cell proliferation.
- Formation of microcompartments within the endoneurium.
- Signs of automutilation in affected limbs due to paralysis.
Conclusions:
- Glycerol causes significant nerve damage, including fiber destruction and degeneration.
- Perineurial cell proliferation plays a role in the nerve's response to glycerol.
- Findings suggest potential risks associated with glycerol injections for nerve conditions.