• Title/Summary/Keyword: Provoked

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A Case of Transient Psychosis Suspected to be Induced by Arachnoid Cyst, Which was Responsive to Risperidone (거미낭으로 일과성 정신병 유발이 의심되고 리스페리돈 치료에 효과적이었던 증례)

  • Bahk, Won-Myong;Pae, Chi-Un;Jun, Taeyoun;Kim, Kwang-Soo;Lew, Tae-Yul
    • Korean Journal of Biological Psychiatry
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    • v.8 no.1
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    • pp.153-155
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    • 2001
  • There had been few reports of arachnoid cyst accompanying psychiatric disturbance and no report treated with low-dose risperidone administration. We report a patient, developed first-transient psychotic episode considered to be provoked by an arachnoid cyst, responsive to risperidone, which was found in the middle cranial fossa as follows. A 57-year-old man was admitted by suddenly developed headache, auditory hallucination, delusion of persecution and, an arachnoid cyst in the anteromedial aspect of middle cranial fossa was found on MRI after admission. The psychotic episode was first to him and he was also negative to other clinical evaluation including endocrine abnormality, his psychotic symtom was suspected to be induced by arachnoid cyst and was well controlled to low-dose risperidone administration. He left hospital free from psychotic symptoms on 14 hospital days.

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Hyperoside Protects Cells against Gamma Ray Radiation-Induced Apoptosis in Hamster Lung Fibroblast

  • Piao, Mei Jing;Kim, Ki Cheon;Cho, Suk Ju;Chae, Sungwook;Kang, Sam Sik;Hyun, Jin Won
    • Natural Product Sciences
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    • v.19 no.2
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    • pp.127-136
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    • 2013
  • Ionizing radiation, including that evoked by gamma (${\gamma}$)-rays, induces oxidative stress through the generation of reactive oxygen species, resulting in apoptosis, or programmed cell death. This study aimed to elucidate the radioprotective effects of hyperoside (quercetin-3-O-galactoside) against ${\gamma}$-ray radiation-induced apoptosis in Chinese hamster lung fibroblasts, V79-4 and demonstrated that the compound reduced levels of intracellular reactive oxygen species in ${\gamma}$-ray-irradiated cells. Hyperoside also protected irradiated cells against DNA damage (evidenced by pronounced DNA tails and elevated phospho-histone H2AX and 8-oxoguanine content) and membrane lipid peroxidation. Furthermore, hyperoside prevented the ${\gamma}$-ray-provoked reduction in cell viability via the inhibition of apoptosis through the increased levels of Bcl-2, the decreased levels of Bax and cytosolic cytochrome c, and the decrease of the active caspase 9 and caspase 3 expression. Taken together, these results suggest that hyperoside defend cells against ${\gamma}$-ray radiation-induced apoptosis by inhibiting oxidative stress.

Backstepping Control for Multi-Machine Web Winding System

  • Bouchiba, Bousmaha;Hazzab, Abdeldjebar;Glaoui, Hachemi;Med-Karim, Fellah;Bousserhane, Ismail Khalil;Sicard, Pierre
    • Journal of Electrical Engineering and Technology
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    • v.6 no.1
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    • pp.59-66
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    • 2011
  • This work treat the modeling and simulation of non-linear dynamic behavior of a web winding process during traction. We designate by a winding process any system applying the cycles of unwinding, transport, treatment, and winding to various flat products. This system knows several constraints, such as the thermal effects caused by the frictions, and the mechanical effects provoked by metal elongation, that generates dysfunctions due to the influence of the process conditions. Several controllers are considered, including Proportional-integral (PI) and Backstepping control. This paper presents the study of Backstepping controls strategy of the winding system. Our winding system is simulated in MATLAB SIMULINK environment, the results obtained illustrate the efficiency of the proposed control with no overshoot, and the rising time is improved with good disturbances rejections comparing with the classical control law.

Moxifloxacin Alleviates Oleic Acid-provoked Neutrophilic Respiratory Burst in the Rat Lung through the Inhibition of Cytosolic Phospholipase $A_2$ (Moxifloxacin의 Cytosolic Phospholipase $A_2$ 억제효과가 흰 쥐 호중구의 Respiratory Burst에 미치는 영향)

  • Lee, Young-Man
    • Tuberculosis and Respiratory Diseases
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    • v.69 no.4
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    • pp.256-264
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    • 2010
  • Background: According to the notion of the immunoregulatory functions of moxifloxacin (MFX), the effect of MFX on the neutrophilic respiratory burst in conjunction with the expression of cytosolic phospholipase $A_2$ ($cPLA_2$) was investigated. Methods: The effects and possible mechanisms of MFX on neutrophilic respiratory burst in oleic acid (OA)-induced acutely injured rats lung and OA-stimulated, isolated murine neutrophils were probed, associated with the expression of cytosolic phospholipase $A_2$ in vivo and in vitro. Results: In the OA-induced acutely-injured lungs, neutrophils were accumulated, which was attenuated by MFX. The parameters denoting a neutrophilic respiratory burst, such as nitro blue tetrazolium reaction, cytochrome-c reduction, neutrophil aggregation, $H_2O_2$ production in neutrophils revealed increased neutrophilic respiratory burst by OA, and MFX decreased all of these parameters. In addition, the enhanced expression of $cPLA_2$ in the lung and isolated murine neutrophils by OA were decreased by MFX. Conclusion: MFX suppresses the OA-induced neutrophilic respiratory burst by the suppression of $cPLA_2$ in neutrophils.

Electrobehavioral and Pathological Characteristics in Cerebral Cortical Dysplasia Induced by External Irradiation in the Rat (방사선조사에 의해 피질이형성증 백서의 전기행동학적, 병리조직학적 특징)

  • Choi, Ha-Young
    • Journal of Korean Neurosurgical Society
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    • v.29 no.7
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    • pp.861-867
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    • 2000
  • Purpose : Neuronal migration disorder(NMD) is a major underlying pathology of patients with intractable epilepsy. The role of NMD on seizure susceptibility or epileptogenecity, however, has not been documented. Methods : External irradiation of total amount of 250 cGY was performed to the fetal rats on days 16(E16) and 17(E17) of gestation. After delivery, the rats of 230-260g were decapitated for the histopathologic study. Epileptog-enecity of the NMD was studied by observing electroclinical events after intraperitoneal kainic acid(KA) injection in the control rats and NMD rats. Results : Histopathologic findings revealed focal and/or diffuse cortical dysplasia consisting of dyslamination of the cerebral cortex and appearance of the cytomegalic neurons, neuronal heterotopia in the periventricular white matter, dispersion of the pyramidal layer and the dentate gyrus of the hippocampus, and agenesis of the corpus callosum. Abnormal expression of neurofilaments protein(NF-M/H) was characteristically observed in the dysplastic neurons of the neocortex and hippocampus. Early ictal onset and prolonged ictal activity on EEG and clinical seizures were observed from the NMD rats unlike with the control rats. Conclusions : Exteranl irradiation on the fetal rats produced NMD. And the rats with NMD were highly susceptible to kainic acid provoked seizures. This animal model would be useful to study the pathophysiology of clinically relevant NMDs.

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Study of the effect of Woohwangporhyonghwan (minus REALGAR and CINNABARIS) and Saengnyosamultang on the Anti-allergic in rats and mice (우황포룡환(牛黃抱龍丸) 거웅황주사방(去雄黃朱砂方) 및 생뇨사물탕(生料四物湯)의 항(抗)알레르기에 관(關)한 실험적(實驗的) 연구(硏究))

  • Choe Chang-Gyu;Park Eun-Jeong;Jeong Gyu-Man
    • The Journal of Pediatrics of Korean Medicine
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    • v.7 no.1
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    • pp.1-16
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    • 1993
  • Experimental studies were done to research the clinical effect of Woohwangporhyonghwan(minus REALGAR and CINNABARIS) and Saengnyosamultang on the Anti-allergie effect in rats and mice. The results obtained as follows: 1. (1) In the effects of Woohwangporhyonghwan(minus REALGAR and CINNABARIS) and Saengnyosamultang on vascular permeability responses to intradermal histamin in rats, Woohwangporhyonghwan(minus REALGAR and CINNABARIS) and Saengnyosamultang revealed significant effect. (2) In the effects of Woohwangporhyonghwan(minus REALGAR and CINNABARIS) and Saengnyosamultang on vascular permeability responses to intradermal serotonin in rats, Woohwangporhyonghwan(minus REALGAR and CINNABARIS) revealed significant effect. 2. In the 48 hour homologous passive cutaneous anaphylaxis in rats provoked by the Ig E-like antibody against egg albumin, Woohwangporhyonghwan(minus REALGAR and CINNABARIS) and Saengnyosamultang revealed significant effect. 3. In the delayed type hypersensitivity responses to picryl chloride in mice, Woohwangporhyonghwan(minus REALGAR and CINNABARIS) revealed significant effect. 4. In the delayed type hypersensitivity responses to SRBC(Sheep Red Blood cell) in mice, Woohwangporhyonghwan(minus REALGAR and CINNABARIS) and Saengnyosamultang revealed significant effect. According to above-stated results, Woohwangporhyonghwan(minus REALGAR and CINNABARIS) and Saengnyosamultang were concluded to be effective as anti-allergic regimen and recommended to be used for treatment of allergic diseases.

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A Study on the Inner Space of Frank Lloyd Wright's Early Houses(1900-1910) Characterized by the Movement of American Housing Development - Focused on American Art & Crafts Movement - (전환기 미국 주택개선운동의 수용에 따른 Frank Lloyd Wright의 초기주택(1900-1910) 내부 공간 특성에 관한 연구 - 미국 수공예 운동을 중심으로 -)

  • 견진현;양재혁
    • Korean Institute of Interior Design Journal
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    • no.38
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    • pp.108-115
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    • 2003
  • Between 1890-1914, the fundamental changes of the housing in United Sates of America were provoked to attempt the housing developments to adapt modern social system. The worthy of notice is that F L. Wright's Prairie House had been tested and built during the period as 'the first and second era' Despite the transition period in America, this represents that Wright's Prairie House series were developed. There are possibilities that some of the reformers assertion for Housing Development, on behalf of Arts & Crafts Movement, led to Wright's early house inner space design. For this reason, this study is to examine Ideologies that Wright has been accepted between the turning point of America's Arts & Crafts Movement and Hull House Circle. In terms of the ideologies acceptance, the study is also to examine how to be represented his inner space design characteristics. As the result, between'Simplification'housing development and the traditional housing In America, F L. Wright sublimated his own architectural aesthetic as accepting all functional elements to consider inevitability in this period, such as the association between economical and rational space, the plan to led on free plane, the spatial side and the stability of family life and the community, through the unification space having the consecutiveness.

Effects of Yongdamsagantang and Yongdamsagantang-gamibang on the Anti-allergic effect in rats and mice (용담사간탕(龍膽瀉肝湯) 및 용담사간탕가미방(龍膽瀉肝湯加味方)의 항(抗)알레르기에 관(關)한 실험적(實驗的) 효과(?果))

  • Seo Man-Seon;Jin Yeong-Sang;Jeong Gyu-Man
    • The Journal of Pediatrics of Korean Medicine
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    • v.5 no.1
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    • pp.15-27
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    • 1991
  • Experimental studies were done to research the clinical effects of Yongdamsagantang and Yongdamsagantang-gamibang (Yongdamsagantang with Lonicerae Flos and Forsythiae Fructusadded) on the Anti-allergic effect in rats and mice. The results obtained as follows; 1. In the effects of Yongdamsagantang and Yongdamsagantang-gamibang on vascular permeability responses to intradermal histamine in rats, Yongdamsagantang group revealed none significant affect, but Yongdamsagantang-gamibang group revealed significant effect. 2. In the effects of Yongdamsagantang and Yongdamsagantang-gamibang on vascular permeability responses to intradermal serotonin in rats, Yongdamsagantang and Yongdamsagantang-gamibang group revealed significant effect. 3. In the 48hrs homologous passive cutaneous anaphylaxis in rats provoked by the IgE-like antibody against egg albumin, Yongdamsagantang group revealed none significant effect, but Yongdamsagantang-gamibang group revealed significant effect. 4. In the delayed type hypersensitivity responses to Picryl Chloride in mice, Yongdamsagantang and Yongdamsagantang-gamibang group revealed none significant effect, in the delayed type hypersensitivity responses to SRBC in mice, Yongdamsagantang group revealed none significant effect, but Yongdamsagantang-gamibang group revealed significant effect. According to above-stated results, Yongdamsagantang is none significant Anti-allergic effect. But Yongdamsagantang-gamibang is concluded to be effective as immediated type hypersensitivity and recommended to be used for the treatment of allergic diseases. (Asthma, Allergic urticaria, Allergic rhinitis, etc.)

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An Experimental Study on the Anti-allergic effect of the Taklisodok-um (탁리소독음(托裏消毒飮)의 항(抗)알레르기 효과(效果)에 관(關)한 실험적(實驗的) 연구(硏究))

  • Kim Gyong-Sun;Lee Jin-Yong;Kim Deok-Gon
    • The Journal of Pediatrics of Korean Medicine
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    • v.8 no.1
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    • pp.27-37
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    • 1994
  • This Experimental study was done to investigate the effect of the Taklisodok-um on the Anti-allergic response. The results were obtained as follows: 1. On vascular permeability response to the intradermal injected Histamine, the Taklisodok-um treated group revealed more significant decrease than control group. 2. On vascular permeability response to the intradermal injected Serotonin, the Taklisodok-um treated group revealed more significant decrease than control group. 3. In the 48hrs homologous passive cutaneous anaphylaxis provoked by the IgE-like antibody against white egg albumin, there was no significant difference between the Taklisodok-um treated group and control group. 4. The Taklisodok-um treated group revealed more significant inhibitory effect than control group in the delayed type hypersensitivity response to Picryl chloride. 5. The Taklisodok-um treated group revealed more significant inhibitory effect than control group in the delayed type hypersensitivity response to SRBC. According to the above-stated results, it is considered that the Taklisodok-um could be applied widely to the type I and IV allergic diseases.

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Study on the effects of Sipyungtang and Sipyungtang-gamibang on the Anti-allergic effect (시평탕(柴平湯) 및 시평탕가미방(柴平湯加味方)의 항(抗)알레르기에 관(關)한 실험적(實驗的) 효과(效果))

  • Lee Seung-Jun;Lee Jin-Yong;Jeong Gyu-Mahn
    • The Journal of Pediatrics of Korean Medicine
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    • v.8 no.1
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    • pp.13-26
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    • 1994
  • Experimental studies were done to research the clinical effects of Sipyungtang and Sipyungtang-gamibang (sipyungtang with Anemarrhenae Rhizoma added) on the Anti-allergic effect. The results obtained as follows; 1. In the effects of Sipyungtang and Sipyungtang-gamibang on vascular permeability responses to intradermal Histamine, Sipyungtang group revealed none significant effect, but Sipyungtang-gamibang group revealed significant effect. 2. In the effects of sipyungtang and Sipyungtang-gamibang on vascular permeability responses to intradermal serotonin, Sipyungtang group revealed none significant effect, but Sipyungtang-gamibang group revealed significant effect. 3. In the 48hrs homologous passive cutaneous anaphylaxis provoked by the IgE-like antibody against egg white albumin, Sipyungtang and Sipyungtang-gamibang groups revealed none significant effect. 4. In the delayed type hypersensitivity responses to Picryl Chloride, Sipyungtang and Sipyungtang-gamibang groups revealed none significant effect. 5. In the delayed type hypersensitivity responses to SRBC, Sipyung-tang and Sipyungtang-gamibang groups revealed significant effect.

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