• Title/Summary/Keyword: Neurological effect

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Effect of Pioglitazone on Excitotoxic Neuronal Damage in the Mouse Hippocampus

  • Lee, Choong Hyun;Yi, Min-Hee;Chae, Dong Jin;Zhang, Enji;Oh, Sang-Ha;Kim, Dong Woon
    • Biomolecules & Therapeutics
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    • v.23 no.3
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    • pp.261-267
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    • 2015
  • Pioglitazone (PGZ), a synthetic peroxisome proliferator-activated receptor ${\gamma}$ agonist, is known to regulate inflammatory process and to have neuroprotective effects against neurological disorders. In the present study, we examined the effects of 30 mg/kg PGZ on excitotoxic neuronal damage and glial activation in the mouse hippocampus following intracerebroventricular injection of kainic acid (KA). PGZ treatment significantly reduced seizure-like behavior. PGZ had the neuroprotective effect against KA-induced neuronal damage and attenuated the activations of astrocytes and microglia in the hippocampal CA3 region. In addition, MPO and $NF{\kappa}B$ immunoreactivities in the glial cells were also decreased in the PGZ-treated group. These results indicate that PGZ had anticonvulsant and neuroprotective effects against KA-induced excitotocix injury, and that neuroprotective effect of PGZ might be due to the attenuation of KA-induced activation in astrocytes and microglia as well as KA-induced increases in MPO and $NF{\kappa}B$.

Clinical Study of Acupucture Effect on Microtraumatic Injuries of the Knee Joint (슬관절 미세손상환자의 침치료에 관한 임상적 고찰)

  • Woo, Young-Min;Lee, Jin-Heon;Kim, Jean-Moon;Nam, Young
    • Journal of Acupuncture Research
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    • v.17 no.4
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    • pp.88-99
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    • 2000
  • Objectives : This study was performed to evaluate the clinical effect of acupuncture on microtraumatic injuries of the knee joint. Methods : Among the outpatients with knee joint pain who visited to Department of Acupuncture & Moxibustion, National Medical Center from February 2000 to September 2000, we selected 15 cases that showed normal finding in both X-ray and neurological examination, and that were categorized into microtraumatic injuries by the physical examination based on the Cyriax's orthopedic medicine. During acupuncture therapy, the patients were ordered to move involved side actively. The effect was assessed through questionnaires of CNRS(Cincinnati Knee Rating System). Results : We investigated 11 female and 4 male patients. The most common distribution of age was 30's(40%). The most commom duration of symtoms was from 3 to 5 months(40%). The most common microtraumatic injury was pes anserinus bursitis(33.3%), and followed by iliotibial band friction syndrome(20%), and patellar tendinitis(20%). In the CNRS, the mean number of before treatment was 60.6 and after was 66.5. 10 cases among the 15 patients were improved(66.6%). Conclusions : These results suggest that the acupuncture therapy combined with active movements of involved side was effective treatment modality on microtraumatic injuries of the knee joint.

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The Effect of Listening to Music for the Reduction of Unilateral Neglect in Chronic Stroke: A Single Subject Study (음악 감상이 만성기 뇌졸중 환자의 편측무시에 미치는 영향 : 단일대상 연구)

  • Lee, Eun-Young
    • Therapeutic Science for Rehabilitation
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    • v.2 no.2
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    • pp.67-75
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    • 2013
  • Objective : This study aims to investigate the effect of listening to music for the reduction of unilateral neglect in stroke patients. Methods : This study used a single subject (A-B) design for a stroke patient with unilateral neglect. The subject was trained for 12 sessions in total. Unilateral neglect was measured using a line bisection test and catherine bergego scale. Results : The line bisection test showed decreased mean error scores of treatment period(B) compared with baseline period(A). and catherine bergego scale showed slightly decreased total scores of treatment period(B) compared with baseline period(A). Conclusion : The listening to music showed a beneficial effect for the reduction of unilateral neglect.

The Effect of Turbidity and Alkalinity on the Regidual Aluminum Concentration (탁도(濁度) 및 알카리도(度)가 잔류(殘留)알루미늄 농도(濃度)에 미치는 영향(影響))

  • Choi, Suingil;Lee, Changsook
    • Journal of Korean Society of Water and Wastewater
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    • v.9 no.3
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    • pp.88-98
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    • 1995
  • Several kinds of coagulants such as aluminum sulfate, PAC, PASS are being used to treat drinking water resulting in residual aluminum ions in the water. Recently, it has been reported that high intake of aluminum ion may cause neurological dieseases such as Alzheimer's diesease and presenile dementia. Because of the possible adverse effect, WHO and EEC recommand to regulate residual aluminum. The autorities in Korea also has plan of regulating residual alunimum from 1995. But there is not enough information about the range of residual aluminum ion concentration when the aluminum sulfate, PAC or PASS has been used as a coagulant. Therefore the study has been conducted to find out the range of residual aluminum ion concentration after using aluminum sulfate, PAC, and PASS. Furthermore the effect of turbidity and alkalinity have been investigated. The experimental results are summarized as; 1. Most of the residual aluminum ion concentrations were within $10^{-6}$ and $10^{-5}mole/l$. Three coagulants have not showed any considerable difference in the residual aluminum concentration up to 50 NTU. However PAC has showed the least residual aluminum in high turbidity water over 100 NTU. 2. The low alkalinity water having 25mg/l as $CaCO_3$ has showed less residual aluminum than the water having 50mg/l alkalinity. However, the difference was not significcant. 3. Even the lowest residual aluminum concentration was over 0.05mg/l. Therefore the process to reduce residual aluminum would be necessary in water treatment plants.

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Neuroprotective Effects of Hyulbuchookau-tang(血府逐瘀湯) on Global Cerebral Ischemia of the Rats (혈부축어탕(血府逐瘀湯)이 흰쥐의 전뇌허혈에 미치는 영향)

  • Cho, Eun-Hee;Kim, Young-Gyun;Kwon, Jung-Nam
    • The Journal of Korean Medicine
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    • v.28 no.2 s.70
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    • pp.44-53
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    • 2007
  • Objectives : This study examined the neuroprotective effect of Hyulbuchookau-tang (血府逐瘀湯, HBCAT) against neural damage following global cerebral infarction. Methods : Sprague-Dawley rats were induced with global cerebral infarction by occlusion of the bilateral common carotid artery with hypotension (CCAO). The rats were divided into 3 groups. We treated extract of HBCAT to one group after operation (sample group), one group wasn't induced with ischemic damage after operation (sham group), and one group was induced with ischemic damage after operation (control group) but not treated. We observed neurological scores and cresyl violet-stained hippocampus CAl area, TUNEL-positive neurons, and Bax-positive neurons in brain regions. Results : HBCAT treatment after CCAO increased pyramidal neurons in CAl hippocampus induced by CCAO. HBCAT treatment after CCAO reduced Bax-positive neurons in CAl hippocampus of brain regions induced by CCAO. HBCAT treatment after CCAO wasn't effective for HSP70-positive neurons in CAl hippocampus induced by CCAO. Conclusions : These results suggest that HBCAT has a neuroprotective effect against global cerebral ischemia.

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The Effect of Listening to Music for the Reduction of Unilateral Neglect in Chronic Stroke: A Single Subject Study (음악 감상이 만성기 뇌졸중 환자의 편측무시에 미치는 영향: 단일대상 연구)

  • Lee, Eun-Young
    • Therapeutic Science for Rehabilitation
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    • v.2 no.1
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    • pp.57-65
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    • 2013
  • Objective : This study aims to investigate the effect of listening to music for the reduction of unilateral neglect in stroke patients. Methods : This study used a single subject (A-B) design for a stroke patient with unilateral neglect. The subject was trained for 12 sessions in total. Unilateral neglect was measured using a line bisection test and catherine bergego scale. Results : The line bisection test showed decreased mean error scores of treatment period(B) compared with baseline period(A). and catherine bergego scale showed slightly decreased total scores of treatment period(B) compared with baseline period(A). Conclusion : The listening to music showed a beneficial effect for the reduction of unilateral neglect.

Testosterone-mediated Neuroprotection in NO Induced Cell Death of Motor Neuron Cells Expressing Wild Type or Mutant Cu/Zn Superoxide Dismutase (Cu/Zn Superoxide Dismutase 유전자 발현 운동신경세포주에서 NO 독성에 대한 Testosterone의 보호효과)

  • Kim, Nam Hee;Kim, Hyun Jung;Kim, Manho;Park, Kyung Seok;Lee, Kwang-Woo
    • Annals of Clinical Neurophysiology
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    • v.8 no.1
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    • pp.63-70
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    • 2006
  • Background: Testosterone is reported to have neuroprotective effect in various neurological diseases. Recently, the mechanism involved in nitric oxide (NO)-mediated motor neuron death is under extensive investigation. The Cu/Zn-superoxide dismutase (SOD1) mutations has been implicated in selective motor neuron death of amyotrophic lateral sclerosis (ALS) and it is said to play an important role in NO-mediated motor neuron death. However, neuroprotective effect of testosterone on motor neuron exposed to NO has rarely been studied. Methods: Motor neuron-neuroblastoma hybrid cells expressing wild-type or mutant (G93A or A4V) SOD gene were treated with $200{\mu}M$ S-nitrosoglutathione. After 24 hr, cell viability was measured by MTT assay. To see the neuroprotective effect of testosterone, pretreatment with 1 nM testosterone was done 1 hr before S-nitroglutathione treatment. To study the mechanism of protective effect, $20{\mu}M$ flutamide (androgen receptor antagonist) was also pretreated with testosterone 1 hr before S-nitroglutathione treatment. Results: S-nitrosoglutathione showed significant neurotoxic effect in all three cell lines. Percentage of cell death was somewhat different in each cell line. 1 nM testosterone showed neuroprotective effect in G93A and wild-type cell line. In A4V cell line, testosterone did not showed neuroprotective effect. The neuroprotective effect of testosterone was reversed by $20{\mu}M$ flutamide. Conclusions: These results indicate that testosterone induces neuroprotection in NO-mediated motor neuron death directly through the androgen receptor. This neuroprotective effect of testosterone varies according to the types of SOD1 gene mutation. These data suggest that testosterone may be of therapeutic value against ALS.

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Cytoprotective Constituents of Alpinia katsumadai Seeds Against Glutamate-Induced Oxidative Injury in HT22 Cells

  • Jeong, Gil-Saeng;Li, Bin;Lee, Dong-Sung;Byun, Erisa;Kang, Dae-Gill;Lee, Ho-Sub;Kim, Youn-Chul
    • Natural Product Sciences
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    • v.13 no.3
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    • pp.268-271
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    • 2007
  • Glutamate-induced oxidative injury contributes to neuronal degeneration in many central nervous system (CNS) diseases, such as epilepsy and ischemia. Bioassay-guided fractionation of the MeOH extract of the seeds of Alpinia katsumadai Hayata (Zingiberaceae) furnished three phenolic compounds, alpinetin (1), pinocembrin (2), and (+)-catechin (3). Compounds 2 and 3 showed the potent neuroprotective effects on glutamate-induced neurotoxicity and reactive oxygen species (ROS) generation in the mouse hippocampal HT22 cells. In addition, Compounds 2 and 3 showed significant DPPH free radical scavenging effect. These results suggest that compounds 2 and 3 could be the effective candidates for the treatment of ROS-related neurological diseases.

Two Cases Report of the Patients with Left Migraine Improved with Zhuapiandutongbang (좌편두통방으로 호전된 좌측 편두통 환자 치험 2례)

  • Sun, Seung-Ho
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.22 no.6
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    • pp.1594-1599
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    • 2008
  • Migraine is a very common unilateral and throbbing headache, and a chronic relapsing and remitting disorder characterised by neurological, gastrointestinal, and autonomic changes. It has a high prevalence, often recurs at the time of being in full activity of life, and has a serious impact on patients personally and socially. So we need to develop a oriental medicine for migraine. I have treated two migraine patients using Zhuapiandutongbang (Zuopiantoutongfang) of Dongyibogam. The impression of first case is migraine with aura, and that of second case is probable migraine. We just give Zhuapiandutongbang (Zuopiantoutongfang)'s medicine to two patients, but don't apply acupucture and anything to treat. We reported that Zhuapiandutongbang (Zuopiantoutongfang) has a good effect on not only the improvement of symptoms but also the prevention of relapse.

Changes of the Extracellular Concentrations of Striatal Dopamine and Its Metabolites by MK-801 in Morphine-Dependent Rats (MK-801 투여에 의한 몰핀의존성랫드 뇌선초체중 도파민신경절달물질의 변화)

  • 이선희;신대섭;유영아;류승렬;김대병
    • Biomolecules & Therapeutics
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    • v.6 no.1
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    • pp.25-30
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    • 1998
  • The roles of dopamine(DA) and N-methyl-D-aspartate(NMDA) system in the development and expression of morphine dependence were investigated by monitoring the concentrations of extracellular DA and its metabolites by in vivo microdialysis and simultaneous observation of behavioral changes in morphine dependent rats. Extracellular DA level in caudate putamen of morphine-dependent rat was decreased and the concentrations of its metabolites, dihydroxy phenylacetic acid(DOPAC) and homovanillic acid(HVA), were increased during naloxone-precipitated withdrawal. DA contents were recovered to normal levels by pretreatment of MK-801, a noncompetitive NMDA receptor antagonist, which may explain the mechanism of diminishing effect of MK-801 on withdrawal symptoms in morphine-dependent rats. MK-801(0.3 mg/tg, i.p.) induced the untoward hamful neurological signs such as ataxia and severe rotations, which may be produced by hyperactivation of dopaminergic system. These results suggest that MK-801 may inhibit the expression of mophine dependence by altering the dopamine release.

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