人蔘이 허혈성 중추신경 손상으로 발현 증가된 CD81 및 GFAP에 미치는 영향
The Effect of the Radix Ginseng on Expression of CD81 and GFAP Following Hypoxic Injury on Central Nervous System
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Objectives : Gliosis disturbs recovery of damaged astrocytes following central nervous system(CNS) injury. Gliosis relates to up-regulation of CD81 and GFAP. In glial cells at injured CNS, the expression of CD81 and GFAP is increased. It is possible that when the gliosis formation is suppressed, regeneration of axons can occur. According to the recent study, the treatment with anti CD81 antibodies enhanced functional recovery in rats with spinal injury. So, the author studies the effect of water extract of Radix Ginseng on regulation of CD81 and GFAP with CNS injury. Methods : In the cell study, hypoxic damage was induced by CoCl2. And according to Longa et al, cerebral ischemia was made by middle cerebral artery occlusion in the rat. Cross sections of rat brain were examined under microscope. MTT analysis was performed to examine cell viability, cell based ELISA, Western Blot and PCR were used to detect the expression of CD81 and GFAP. Results : The following results were obtained. 1. We found that CD81 and GFAP were decreased in hypoxic injured cells following Radix Ginseng administration. 2. We injected the extract of Radix Ginseng to the middle cerebral artery occlusion in rats, and the immunohistochemistry analysis showed that CD81 and GFAP were decreased. Conclusions : These results show that the extract of Radix Ginseng could suppress the gliosis formation and prevent cell death, by controlling the expression of CD81 and GFAP. Therefore, Radix Ginseng could be a useful to regenerate CNS injury.
Abstract
Objectives : Gliosis disturbs recovery of damaged astrocytes following central nervous system(CNS) injury. Gliosis relates to up-regulation of CD81 and GFAP. In glial cells at injured CNS, the expression of CD81 and GFAP is increased. It is possible that when the gliosis formation is suppressed, regeneration of axons can occur. According to the recent study, the treatment with anti CD81 antibodies enhanced functional recovery in rats with spinal injury. So, the author studies the effect of water extract of Radix Ginseng on regulation of CD81 and GFAP with CNS injury. Methods : In the cell study, hypoxic damage was induced by CoCl2. And according to Longa et al, cerebral ischemia was made by middle cerebral artery occlusion in the rat. Cross sections of rat brain were examined under microscope. MTT analysis was performed to examine cell viability, cell based ELISA, Western Blot and PCR were used to detect the expression of CD81 and GFAP. Results : The following results were obtained. 1. We found that CD81 and GFAP were decreased in hypoxic injured cells following Radix Ginseng administration. 2. We injected the extract of Radix Ginseng to the middle cerebral artery occlusion in rats, and the immunohistochemistry analysis showed that CD81 and GFAP were decreased. Conclusions : These results show that the extract of Radix Ginseng could suppress the gliosis formation and prevent cell death, by controlling the expression of CD81 and GFAP. Therefore, Radix Ginseng could be a useful to regenerate CNS injury.
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