• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2018.10a
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• pp.448-451
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• 2018

The purpose of this study was to investigate the developmental process of myelination by neuron and Schwann cell cultures and the development of demyelination by herpes simplex virus-1 infection by electron microscopy and molecular biological analysis. The dorsal root ganglion (DRG) was isolated from the mouse embryo and Schwann cells and neuronal cells were cultured in vitro. Neuronal cells treated with mitotic inhibitors and purified Schwann cells were co-cultured together to induce myelination. The herpes simplex virus-1 was infected with the co-cultured cells, and the demyelination was induced. The myelin protein zero (MPZ) antibody, which means the presence of myelin formation, was used and electron microscopy was used to observe the development of myelin and dehydration.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2015.05a
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• pp.943-946
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• 2015

For myelination, Schwann cells and neuron cells from dorsal root ganglion (DRG) of rat embryos (E16) were cultured in vitro system. The purified DRG cells with anti-mitotic agents and purified Schwann cells were cocultured and then accomplished myelination processing. Treatment of M. leprae-specific phenolic glycolipid-1 (PGL-1) into this coculture system was performed and then accomplished demyelination. Therefore, we identified demyelination processing using antibody of myelin basic protein (MBP).

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2019.05a
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• pp.528-532
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• 2019

The dorsal root ganglion (DRG) was isolated from mouse embryos and Schwann cells and neuronal cells were cultured in vitro. The neurons and Schwann cells were cultured separately and the two kinds of cells were cultured together for three weeks. Generation of myelination was confirmed by transmission electron microscope and confocal microscope using a myelinaion protein, myelin protein zero (MPZ) antibody. The sindbis virus was infected for three days in the myelinated culture cells and then demyelination was carried out. The process of demyelination was also confirmed by transmission electron microscopy and confocal microscopy using myelin protein zero (MPZ) antibody. The study was supported by a Basic Research Program through the National Research Foundation (NRF) funded by the Ministry of Science and Technology, ICT and Future Plans (NRF-2016R1A2B4016552 and 2017R1A2B3005753).

• Journal of the Korean Society of Radiology
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• v.81 no.1
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• pp.243-247
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• 2020

We report a rare case of hyperglycemia-related osmotic demyelination syndrome (ODS) with focus on the imaging findings. A 61-year-old man with diabetes was admitted for general weakness and severe thirst. A few days later, he complained of dysarthria, dysphasia, and dysmetria. Laboratory examinations showed significant hyperglycemia, but normal electrolyte levels. Brain MRI revealed T2-signal abnormalities that were symmetrical, non-space occupying, and located in the central pons with a peripheral sparing pattern, which were suggestive of ODS. In addition, subsequent MRI revealed progression of signal hyperintensity; however, the patient's symptoms improved.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2017.05a
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• pp.714-717
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• 2017

Schwann cells and Neuronal cells were isolated from dorsal root ganglion (DRG) in embryos of rat in vitro respectively. The cultured Schwann cells and cultured neuronal cells, respectively were co-cultured in a same plate. These cells were performed accomplishment of myelination. This myelinated co-culture system was infected by Semliki forest virus and then induced demyelination processing in this myelinated co-culture. We identified myelination and demyelination processing using antibody of peripheral myelin protein 22 (PMP 22) meaning presence of myelinated neuron.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2016.05a
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• pp.718-721
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• 2016

Schwann cells and neuron cells from dorsal root ganglion (DRG) in embryos of rat were cultured in vitro respectively. The purified neronal cells added with anti-mitotic agents and purified Schwann cells were cocultured and then accomplished myelination processing. Infection of Semliki forest virus into this myelinated co-culture system was performed and then accomplished demyelination. We identified myelination and demyelination processing using antibody of neuropeptide Y meaning presence of myelinated neuron.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2016.10a
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• pp.919-922
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• 2016

Neuronal cells and Schwann cells from dorsal root ganglion (DRG) in embryos of rat were isolated and cultured in vitro respectively. The purified neuronal cells added with anti-mitotic agents and purified Schwann cells were co-cultured and then accomplished myelination processing. This myelinated co-culture system was infected by herpes simplex virus-1 and then accomplished demyelination processing in this myelinated co-culture. We identified myelination and demyelination processing using antibody of neuropeptide Y meaning presence of myelinated neuron.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2015.10a
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• pp.830-833
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• 2015

Schwann cells and neuron cells from dorsal root ganglion (DRG) of rat embryos (E16) were isolated and purified in vitro system. The purified DRG cells with anti-mitotic agents and purified Schwann cells, respectively, were cocultured and then consummated myelination processing. This myelination system was treated by M. leprae-specific phenolic glycolipid-1 (PGL-1) and then accomplished demyelination system. We compared with myelination and demyelination using neurofilament of monoclonal antibody.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.21 no.6
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• pp.1212-1217
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• 2017

We constructed a population of myelinated cells with co-culture of neuronal cells and Schwann cells from DRG. Schwann cells and neuronal cells were isolated from dorsal root ganglion (DRG) in embryos of rat in vitro respectively. The cultured Schwann cells and cultured neuronal cells, respectively were co-cultured in a same plate. This procedure contains following four steps: first step of suspension of the embryonic dorsal root ganglion cells, second step of addition of anti-mitoticcocktail, third step of purification of dorsal root cells, and fourth step of addition of Schwann cells to dorsal root ganglion cells. These cells were performed accomplishment of myelination. This myelinated co-culture system was infected by Semliki forest virus and then induced demyelination processing in this myelinated co-culture. We identified myelination and demyelination processing using antibody of peripheral myelin protein 22 (PMP 22) meaning presence of myelinated neuron.

• Korean Journal of Biological Psychiatry
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• v.24 no.1
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• pp.1-9
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• 2017

The proton magnetic resonance spectroscopy ($^1H-MRS$) is a tool used to detect concentrations of brain metabolites such as N-acetyl aspartate, choline, creatine, glutamate, and gamma-amino butyric acid (GABA). It has been widely used because it does not require additional devices other than the conventional magnetic resonance scanner and coils. Demyelination, or the neuronal damage due to loss of myelin sheath, is one of the common pathologic processes in many diseases including multiple sclerosis, leukodystrophy, encephalomyelitis, and other forms of autoimmune diseases. Rodent models mimicking human demyelinating diseases have been induced by using virus (e.g., Theiler's murine encephalomyelitis virus) or toxins (e.g., cuprizon or lysophosphatidyl choline). This review is an overview of the MRS findings on brain metabolites in demyelination with a specific focus on rodent models.