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논문 기본 정보

자료유형
학술저널
저자정보
Kang, Nam-Gu (Department of Neurosurgery, Gwangju Christian Hospital) Chang, Hong-Joen (Department of Neurosurgery, Gwangju Christian Hospital) Ok, Young-Cheol (Department of Neurosurgery, Gwangju Christian Hospital) Lee, Rae-Seop (Department of Neurosurgery, Gwangju Christian Hospital) Park, Seung-Kyu (Department of Neurosurgery, Gwangju Christian Hospital) Lim, Jun-Seob (Department of Neurosurgery, Gwangju Christian Hospital) Cho, Kyu-Yong (Department of Neurosurgery, Gwangju Christian Hospital) Kim, Hyung-Ihl (Department of Neurosurgery, Jeonju Presbyterian Hospital) Kim, Jae-Hyoo (Departments of Neurosurgery, Chonnam National University Medical School) Oh, Hyun-Sik (Departments of Pathology, Chonnam National University Medical School) Lee, Min-Cheol (Departments of Pathology, Chonnam National University Medical School)
저널정보
대한신경외과학회 대한신경외과학회지 대한신경외과학회지 제41권 제6호
발행연도
2007.1
수록면
397 - 402 (6page)

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Objective : Balloon cells and dysplastic neurons are histopathological hallmarks of the cortical tubers of tuberous sclerosis complex [TSC] and focal cortical dysplasia [FCD] of the Taylor type. They are believed to be the epileptogenic substrate and cause therapeutic drug resistant epilepsy in man. P-glycoprotein [P-gp] is the product of multidrug resistance gene [MDR1], and it maintains intracellular drug concentration at a relatively low level. The authors investigated expression of P-gp in balloon cells and dysplastic neurons of cortical tubers in patients with TSC. Methods : An immunohistochemical study using the primary antibody for P-gp, as an indicative of drug resistance, was performed in the cortical tuber tissues in two patients of surgical resection for epilepsy and six autopsy cases. Results : Balloon cells of each lesion showed different intensity and number in P-gp immunopositivity. P-gp immunopositivity in balloon cells were 28.2%, and dysplastic neurons were 22.7%. These immunoreactivities were more prominent in balloon cells distributed in the subpial region than deeper region of the cortical tubers. Capillary endothelial cells within the cortical tubers also showed P-gp immunopositivity. Conclusion : In this study, the drug resistance protein P-glycoprotein in balloon cells and dysplastic neurons might explain medically refractory epilepsy in TSC.

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