• Title/Summary/Keyword: Cerebral nervous system

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Usefulness of Bismuth Shielding in Cerebral Vascular Intervention (뇌혈관 중재적 시술 시 Bismuth 차폐체 설치의 유용성에 대한 연구)

  • Kim, Jae-seok;Son, Jin-hyun;Kim, Young-kil
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • 2017.05a
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    • pp.179-182
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    • 2017
  • Cerebral nervous system intervention procedures have been reported frequently due to radiation exposure such as skin baldness, hair loss, and redness due to prolonged procedures. Therefore, the bismuth shield designed to reduce the radiation exposure of the target organ located in the anterior part of the human body sensitive to skin and radiation sensitivity during CT (computed tomography) scan is applied to the cerebral vascular system intervention by ergonomic design, To reduce the radiation dose of sensitive scalp, we propose a study.

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The Effect of the Radix Ginseng on Expression of CDSI and GFAP Following Hypoxic Injury on Central Nervous System (인삼(人蔘)이 허혈성 중추신경 손상으로 발현 증가된 CD81 및 GFAP에 미치는 영향)

  • Seo, Jong-Hoon;Song, Bong-Gun;Lyu, Yeoung-Su;Kang, Hyung-Won;Kim, Tae-Heon
    • Journal of Oriental Neuropsychiatry
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    • v.20 no.1
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    • pp.177-197
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    • 2009
  • 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 oxons 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 CoC12. 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 CDS1 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 CDS1 and GFAP. Therefore, Radix Ginseng could be a useful to regenerate CNS injury.

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Kami-bang-pung-tong-sung-san is Involved in Protecting Neuronal Cells from Cytotoxic Insults

  • Na Young Cheul;Nam Gung Uk;Lee Yong Koo;Kim Dong Hee
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.18 no.1
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    • pp.265-273
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    • 2004
  • KBPTS is the fortified prescription of Bang-pung-tong-sung-san (BPTS) by adding Spatholobi Clulis and Salviae Miltiorrzae Radix. BPTS prescription has been used in Qriental medicine for the treatments of vascular diseases including hypertension, stroke, and arteriosclerosis, and nervous system diseases. Yet, the overall mechanism underlying its activity at the cellular levels remains unknown. To investigate the protective role of KBPTS on brain functions, noxious stimulations were applied to neurons in vitro and in vivo. KBPTS pretreatment in cultured cortical neurons of albino ICR mice rescued death caused by AMPA, NMDA, and kainate as well as by buthionine sulfoximine (BSO) and ferrous chloride (Fe/sup 2+/) treatments. Furthermore, KBPTS promoted animal's recovery from coma induced by a sublethal dose of KCN and improved survival by a lethal dose of KCN. To examine its physiological effects on the nervous system, we induced ischemia in the Sprague-Dawley rat's brain by middle cerebral artery (MCA) occlusion. Neurological examination showed that KBPTS reduced the time which is required for the animal after MCA occlusion to respond in terms of forelimb and hindlimb movement$. Histological examination revealed that KBPTS reduced ischemic area and edema rate and also protected neurons in the cerebral cortex and hippocampus from ischemic damage. Thus, the present data suggest that KBPTS may play an important role in protecting neuronal cells from external noxious stimulations.

Developmental Anomalies of Central Nervous System in Human

  • Chi, Je G.
    • Toxicological Research
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    • v.17
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    • pp.11-16
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    • 2001
  • The development of the central nervous system is a continuous process during the embryonic and fetal periods. For a better understanding of congenital anomalies of central nervous system, three major events of normal development, i.e., neurulation (3 to 4 weeks), brain vesicle formation (4 to 7 weeks) and mantle formation (over 8 weeks) should be kept in mind. The first category of anomalies is neural tube defect. Neural tube defects encompass all the anomalies arise in completion of neurulation. The second category of central nervous system anomalies is disorders of brain vesicle formation. This is anomaly that applies for "the face predicts the brain". Holoprosencephaly covers a spectrum of anomalies of intracranial and midfacial development which result from incomplete development and septation of midline structures within the forebrain or prosencephalon. The last category of central nervous system malformation is disorders involving the process of mantle formation. In the human, neurons are generated in two bursts, the first from 8 to 10 weeks and next from 12 to 14 weeks. By 16 weeks, most of the neurons have been generated and have started their migration into the cortex. Mechanism of migration disorders are multifactorial. Abnormal migration into the cortex, abnormal neurons, faulty neural growth within the cortex, unstable pial-glial border, degeneration of neurons, neural death by exogenous factors are some of the proposed mechanism. Agyria-pachygyria are characterized by a four-layerd cortex. Polymicrogyria is gyri that are too numerous and too small, and is morphologically heterogeneous. Cortical dysplasia is characterized by the presence Q[ abnormal neurons and glia arranged abnormally in focal areas of the cerebral cortex. Neuroglial malformative lesions associated with medically intractable epilepsy are hamartia or hamartoma, focal cortical dysplasia and microdysgenesis.ysgenesis.

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Effect of Sam Hwa San on Na-K-ATPase Activity in Microsomal Fraction of Rabbit Cerebral Cortex (삼화산(三和散)이 대뇌피질(大腦皮質) microsome분획(分劃)에서 Na-K-ATPase활성(活性)에 미치는 영향(影響))

  • Kim, Gil-Seop;Jeong, Ji-Cheon
    • The Journal of Korean Medicine
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    • v.16 no.1 s.29
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    • pp.281-294
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    • 1995
  • The effect of Sam Hwa San on the Na-K-ATPase activity was evaluated in microsomal fraction prepared from rabbit cerebral cortex to determine whether Sam Hwa San affects Na-K-ATPase activity of nervous system. Sam Hwa San markedly inhibited the Na-K-ATPase activity in a dose-dependent manner with an estimated $I_{50}$ of 0.12%. Optimal pH for the Na-K-ATPase activity was at 7.5 in the presence or absence of Sam Hwa San. The degree of inhibition by the drug more increased at acidic and alkalic pHs than neutral pH. Kinetic studies of substrate and cationic activation of the enzyme indicate classic noncompetitive inhibition fashion for ATP, Na and K, showing significant reduction in Vmax without a change in Km. Dithiothreitol, a sulfhydryl reducing reagent, partially protects the inhibition of Na-K-ATPase activity by Sam Hwa San. Combination of Sam Hwa San and ouabain showed higher inhibition than cumulative inhibition. These results suggest that Sam Hwa San inhibits Na-K-ATPase activity in central nervous system by reacting with, at least a part, sulfhydryl group and ouabain binding site of the enzyme protein, but with different binding site from those of ATP, Na and K.

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An Experimental Study on Physiological and Psychological Effects of Pine Scent (소나무 향기의 생리 심리적 효과에 관한 실험적 연구)

  • Jo, Hyun-Ju;Fujii, Eijiro;Cho, Tae-Dong
    • Journal of the Korean Institute of Landscape Architecture
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    • v.38 no.4
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    • pp.1-10
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    • 2010
  • The scientific verification of the physiological and psychological effects that result from interaction with green plants would not only provide objective knowledge on the psychological effect of green but would also establish useful grounds for the creation of green spaces that consider human emotions. The present study measured the cerebral activity(cerebral blood flow) and the autonomic nervous system activity (blood pressure, pulse rate, amylase) of fifteen Korean male subjects as they inhaled the natural scent diffused by pine needles. Impression and mood state evaluations of the reactions to the pine scent were carried out using the SD method and POMS. Cerebral activity was observed to be significantly activated in the feeling, judgment, and motor areas of the frontal lobe, as well as the memory area in the temporal lobe. Verbal evaluations by the SD method and POMS indicated a pine scent left natural but stimulated and active impressions, provided vigor, and also reduced confusion. The autonomic nervous system activities, however, showed no significant differences. These findings verified scientifically that a pine scent vitalizes humans both physiologically and psychologically. These results could be useful as fundamental data for the design of green spaces that consider human emotional aspects.

Two Cases of Cerebral Aspergillosis Following Cranial Operation - Case Report - (개두술후 발생한 뇌 아스퍼질루스증 2예)

  • Kim, Jung Dug;Kim, Eui Jung;Park, Sang June;Cho, Chang Weon;Youn, Sung Moon
    • Journal of Korean Neurosurgical Society
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    • v.29 no.8
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    • pp.1094-1097
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    • 2000
  • Aspergillosis is an opportunistic infection associated with diabetes, alcoholism, use of corticosteroid and transplantation procedure. Aspergillosis of central nervous system is a rare disease and known to show an aggressive course with high mortality. We managed two cases of cerebral aspergillosis, following cranial operation, with combination therapy of surgery and antifungal agents. One patient recorvered but the other patient died. The clinical course of these two patients is presented with review of pertinent literature.

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Cerebral Phaeohyphomycosis : A Rare Cause of Brain Abscess

  • Jung, Na-Young;Kim, Ealmaan
    • Journal of Korean Neurosurgical Society
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    • v.56 no.5
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    • pp.444-447
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    • 2014
  • Cerebral phaeohyphomycosis (CP) is a very rare but serious form of central nervous system fungal infection that is caused by dematiaceous fungi. It is commonly associated with poor prognosis irrespective of the immune status of the patient. In this study, the authors describe the first case of CP in Korea that occurred in a 75-year-old man without immunodeficiency and showed favorable outcome after surgical excision and antifungal therapy. In addition, the authors herein review the literature regarding characteristics of this rare clinical entity with previously reported cases.

A Case of Cerebral Cysticercosis in Thailand

  • Thammachantha, Samasuk;Kunnatiranont, Ratana;Polpong, Pongwat
    • Parasites, Hosts and Diseases
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    • v.54 no.6
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    • pp.793-795
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    • 2016
  • Cysticercosis and sparganosis are not uncommon parasitic infections in the developing world. Central nervous system infection by both cestodes can present with neurological signs and symptoms, such as seizure and mass effect, including brain hernia. Early detection and accurate diagnosis can prevent a fatal outcome. Histological examinations of brain tissues can confirm the diagnosis of cerebral cysticercosis, which differs from sparganosis by the presence of a cavitated body. We report here a case of cerebral cysticercosis which has the similar clinical and imaging findings as sparganosis.

Comparison of Cerebral Cortical Neuron Excitability of Normal Elderly People during Concentric and Eccentric Contraction (정상 노년층의 동심성 및 편심성 수축 시 대뇌 피질신경원 흥분도 비교)

  • Kang, Jeong-Il;Choi, Hyun
    • The Journal of Korean Physical Therapy
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    • v.24 no.4
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    • pp.262-267
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    • 2012
  • Purpose: This study was designed to analyze the differences in cerebral cortex activity of the elderly after extracting the movement related cortical potentials (MRCPs) from electroencephalogram (EEG) during a concentric and eccentric contraction of the elbow joint flexors, and entering them into the brain-mapping program to make the images. Methods: Right-dominant normal elderly people were divided into an eccentric contraction group and a concentric contraction group. Then, their MRCPs were measured using EEG and sEMG, during an eccentric and concentric contraction. Then, they were converted into images using the brain-mapping program. Results: Eccentric contraction group's $C_3$ and Cz showed statistically higher mean values of MRCP positive potential than the concentric contraction group. Conclusion: Researching a cerebral cortex activity, using MRCP, would provide basic data for clinical neuro-physiological researches on aging or neural plasticity of patients with a central nervous system injury.