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Direct-current Stimulation and Multi-electrode Array Recording of Seizure-like Activity in Mice Brain Slice Preparation
Published on: June 7, 2016
Synchrotron-generated microbeam sensorimotor cortex transections induce seizure control without disruption of
Pantaleo Romanelli1, Erminia Fardone, Giuseppe Battaglia
1Centro Diagnostico Italiano, Brain Radiosurgery, Cyberknife Center, Milano, Italy. radiosurgery2000@yahoo.com
Plos One
|January 24, 2013
Summary
Synchrotron X-ray microbeams precisely target brain tissue, creating cortical transections without affecting behavior. This method effectively reduced seizure duration in rats, offering a new tool for neurological research and treatment.
Area of Science:
- Neurobiology
- Radiosurgery
- Neurosurgery
Background:
- Synchrotron X-ray microbeams deliver high radiation doses to targeted tissue volumes.
- Minimal dose spreading protects adjacent neurons and glia from radiation damage.
- Preservation of cortical architecture allows for non-invasive induction of surgical-like cortical cuts.
Purpose of the Study:
- To investigate the feasibility of using X-ray microbeams for creating cortical transections.
- To evaluate the impact of microbeam irradiation on motor behavior and weight gain in rats.
- To assess the efficacy of microbeam transections in reducing seizure duration.
Main Methods:
- X-ray microbeams (100-600 µm) were delivered to the sensorimotor cortex of rats.
- Histological analysis confirmed cortical transections.
- Motor behavior and weight gain were monitored up to 7 months.
- Kainic acid was infused locally to induce seizures, and microbeam transections were performed.
Main Results:
- Histologically evident cortical transections were generated without altering motor behavior or weight gain.
- Microbeam transections significantly reduced seizure duration in kainic acid-infused rats.
- No subsequent neurological deficits were observed post-treatment.
Conclusions:
- X-ray microbeam irradiation provides a novel tool for creating precise cortical transections.
- This technique shows promise for studying cortical function and developing new therapies for epilepsy and other brain disorders.
