• The Journal of the Korea institute of electronic communication sciences
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• v.8 no.12
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• pp.1949-1958
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• 2013

This study conducted observation of tissues using the immunohistochemistry methods in order to see the effect of Needle Electrode Electrical Stimulation(: NEES) on apoptosis in the SD rat cerebellum caused by global ischemia which came from common carotid artery occlusion. The comparison and analysis results of expression of factors related to apoptosis among the control group, the global ischemia group and the NEES group showed that NEES following global ischemia had a significant effect on the reduction of c-fos expression in the SD rat cerebellum, and didn't have a significant effect on the reduction of bax and caspase-3 expression. In conclusion, it is considered that NEES following global ischemia is partially effective in suppressing the expression of factors related to apoptosis.

• The Journal of Korean Medicine
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• v.23 no.3
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• pp.74-84
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• 2002

목적 : 본 실험에서는 gerbil을 이용한 전뇌허혈 동물모델에서 뇌허혈손상 직후 지연성 뇌손상에 대한 대황의 방어효과와 Apoptosis 과정중의 Bax와 Bcl-2 단백질에 대한 조절작용을 관찰하고, TUNEL 염색법을 통하여 대황이 gerbil hippocampus CAl영역의 pyramidal neuron의 세포사에 미치는 영향과 PCl2세포를 이용한 세포배양 모델에서의 대황의 신경방어 효과를 관찰하였다. 방법 : Mongolian gerbil의 총경동맥을 5분간 폐색하여 가역성 전뇌허혈을 유발시킨 후 대황의 전탕액을 하루에 한번 경구 투여하였다. 대황의 신경 보호 효과는 수술 7일 후에 cresyl violet으로 염색하여, 살아있는 신경 세포의 수를 세어 측정하였다. 또, 수술 3일 후에는 면역조직화학적 방범을 통하여 Bax. Bcl-2단백질의 발현과 대황의 신경보호 효과와의 관련성을 알아보았다. 결과： 가역적 전뇌허혈이 일어난 동물군의 경우 hippocampus의 CAl 영역에서 살아있는 신경세포의 수는 $51.0{\pm}2.5개{\;}/mm$에 불과하였으나, 그에 비해 수술 후 7일간 대황을 투여한 동물군은 $106.2{\pm}2.5개{\;}/mm$로 살아 있는 신경세포수가 크게 증가하였다. Apoptosis를 촉진하는 단백질인 Bax의 발현은 3일간 대황을 투여한 동물군의 경우 hippocampus의 CAl 영역에서 현저하게 저해되었고, Apoptosis를 억제하는 Bcl-2 단백질의 발현은 변화가 없었다. TUNEL assay를 통하여 살펴본 결과 대황 투여군의 apoptotic 신경세포사가 감소하였으며 이는 Bax protein의 발현과 유사한 양상을 나타내었다. 결론：대황이 Bax 단백질의 발현을 억제하여 상대적으로 Bax/Bcl-2 자연적 세포사를 억제하여 Mogolian gerbil의 가역성 전뇌허혈 모델에서 신경보호효과를 나타내는 것으로 사료된다.

• The Journal of Dong Guk Oriental Medicine
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• v.8 no.1
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• pp.107-116
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• 1999

The effects of Sosokmyung-tang(小續命湯) on global cerebral ischemia and cerebral in farction by MCA(middle cerebral artery) occlusion were evaluated in this study. This study was performed to investigate that Sosokmyung-tang would be useful for cerebrovascular diseases. In the case of global cerebral ischemia, ICR mice were used and divided into three group at random. Control group was treated after oral administration of normal saline, experimental group was treated after oral administration of 10.4mg/20g/day of Sosokmyung-tang extract. The multiple parameter of global cerebral ischemia included the duration of coma of KCN(potassium cyanide)-injected(1.2mg/kg, i.v) group and the survival time of KCN-injected(3.0mg/kg, i.v) group. In the case of cerebral infarction by MCA occlusion, Sprague-Dawley rats were used and divided into three group at random. Control group was given nothing before MCA occlusion, experimental group was given 157.2mg/250g/day of Sosokrnyung-tang extract before MCA occlusion. We investigated edema and ischemic ratio in 8 slices of rats' brain after MCA occlusion. The results were obtained as follows : 1. Sosokrnyung-tang significantly shortened the duration of coma of KCN-injected(1.2mg/kg,i.v) group and lengthened the survival time of KCN-injected(3.0mg/kg, i.v) group. 2. Sosokmyung-tang significantly decreased cerebral edema and ischemic ratio in rats after MCA occlusion. From the above results, it was concluded that Sosokmyung-tang can be effectively applied to cerebrovascular diseases.

• Proceedings of the Korean Society of Developmental Biology Conference
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• 2004.07a
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• pp.31-31
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• 2004

• Journal of Korean Medicine Rehabilitation
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• v.18 no.4
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• pp.1-11
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• 2008

Objectives : Cerebral ischemia resulting from transient or permanent occlusion of cerebral arteries leads to neuronal cell death and eventually causes neurological impairments. Scrophulariae radix is the roots of Scrophularia buergeria. In the present study, we investigated the effects of the aqueous extract of Scrophulariae radix on apoptotic cell death in the hippocampal dentate gyrus following transient global ischemia in gerbils. Methods : For this study, step-down avoidance task, terminal deoxynucleotidyl transferase-mediated dUTP nick end labeling (TUNEL) assay, and immunohistochemistry for caspase-3 were performed. Results : The present results showed that apoptotic cell death in the hippocampal dentate gyrus was significantly increased following transient global ischemia in gerbils. Treatment with the aqueous extract of Scrophulariae radix suppressed the ischemia-induced apoptosis in the dentate gyrus and thus facilitated the recovery of short-term memory impairment induced by ischemic cerebral injury. Conclusions : Here in this study, we have shown that Scrophulariae radix has a positive effect on-and possesses protective qualities against ischemia-induced apoptotic neuronal cell death, and it can be used for the treatment of ischemic brain diseases.

• The Journal of Dong Guk Oriental Medicine
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• v.7 no.2
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• pp.149-154
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• 1999

The effect of Yukilsunki-tang extracts on global cerebral ischemia were investigated in this study. The multiple parameters of global cerebral ischemia assessed in mice included the duration of KCN-induced(1.8mg/kg i.v.) coma, the survival time of KCN-induced(3.0mg/kg i.v.) coma, the survival time exposed to hypoxia induced by vacuum pump. In the case of global cerebral ischemia International Cancer Research mice were used and divided into two groups at random Group A, normal control, was treated after oral administration of normal saline. Group B, experimental control, was treated after oral administration of 13.2mg/20g of Yukilsunki-tang extracts. Each treatment was KCN-induced(1.8mg/kg i.v.) coma, KCN-induced(3.0mg/kg i.v.) coma and exposure to hypoxia induced by vacuum pump. The results were obtained as follows ; In global cerebral ischemia, Yukilsunki-tang extracts significantly prolonged the duration of KCN-induced(1.8mg/kg i.v.) coma, the survival time of KCN-induced(3.0mg/kg i.v.) coma and the survival time of exposure to hypoxia induced by vacuum pump in mice. Conclusion Yukisunki-tang extracts had a significant effect on Global cerebral ischemia.

• The Journal of Dong Guk Oriental Medicine
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• v.8 no.1
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• pp.171-190
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• 1999

This following is effect of Buthus martensi Karsch(BMK) extract on dextran-thrombus model, KCN-induced coma, cytotoxicity of brain etc. BMK extract significantly increased number of platelet and fibrogen and significantly shortened the prothrombin time as compared with control group treated with dextran. BMK extract didn't affect the changes of hematocrit as compared with control group treated with dextran. BMK extract induced a significant inhibition of human platelet aggregation induced by thrombin and ADP but did not affect human platelet aggregation induced by collagen. BMK extract showed a protective effect on pulmonary thrombosis induced by collagen and epinephrine. BMK extract prolonged the duration of KCN-induced coma and showed a protective effect on cytotoxicity of PC12 cells induced by amyloid ${\beta}$ protein(25-35) in a dose dependent manner. These results suggested that BMK extract might be usefully applied for prevention and treatment of thrombosis and brain damage.

• Proceedings of the KSAR Conference
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• 2004.06a
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• pp.269-269
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• 2004

배아줄기 세포는 신경퇴행성 질환의 치료 수단으로 많은 가능성을 가지고 있는 것으로 알려져 있다. 본 연구에서는 중풍 동물모델에서 수중미로 학습을 이용하여 중풍 치료제로서 인간배아줄기 세포의 인지 및 기억력 장애에 대한 기능 회복의 효능을 검토하였고, 인간배아줄기 세포의 신경세포 보호효과를 규명하기 위하여 면역조직화학 염색법을 이용하여 해마내의 세포사멸을 측정하였으며, 인지 및 기억증진의 작용을 규명하기 위하여 아세틸콜린성 신경세포의 활성도를 측정하였다. (중략)

• Proceedings of the Korean Society of Crop Science Conference
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• 2006.04a
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• pp.420-421
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• 2006

• 대한생식의학회:학술대회논문집
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• 2004.06a
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• pp.61.2-62
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• 2004