Alcohol extract of Geum Chung Cho alleviates alcohol-induced short-term memory impairment in gerbils

Han-Sam Cho,Tae-Woon Kim,Sang-Seo Park,Mal-Soon Shin,Jae-Min Lee,Eun-Sang Ji,Chang-Ju Kim 한국운동재활학회 2015 한국운동재활학회 학술대회 Vol.2015 No.10

Chronic ethanol consumption leads to memory impairment and also induces brain damage. The hippocampus has been particularly regarded as a possible target organ of alcoholic intoxication, since this structure plays a prominent function in memory processes. Cordyceps has been used as a traditional medicine in Asian countries for a long time. Different types of Cordyceps extract were reported to have various pharmacological activities including anti-tumor, anti-inflammatory, anti-viral, and immune modulatory effects. Guem Chung Cho is an artificial cultivated Cordyceps, and was supplied from GCordy (Seoul, Korea). Ethanol extract of Cordycep (50 g) was made by rotary evaporate, and resulting powder 8.29 g was obtained (yield 17%). In the present study, we investigated the effects of ethanol extract of Geum Chung Cho on short-term memory, cell proliferation and apoptosis in the hippocampus of ethanol-treated gerbils. The gerbils were divided into 5 groups (n = 10 in each group): Control group, alcohol-treated group, alcohol-treated and 0.001 mg/kg Geum Chung Cho-applied group, alcohol-treated and 0.01 mg/kg Geum Chung Cho-applied group, and alcohol-treated and 0.1 mg/kg Geum Chung Cho-applied group. Gerbils in the alcohol-treated groups were orally administered ethanol (1 g/kg) once a day for 2 weeks. Gerbils in the Guem Chung Cho-applied groups were orally administered Guem Chung Cho extract at each dosage 1 hour before ethanol consumption. Our results revealed that consumption of alcohol for 2 weeks deteriorated short-term memory, induced apoptosis, and inhibited cell proliferation, and reduced expressions of brain-derived neurotrophic (BDNF) and tyrosine kinase B (TrkB). However, Guem Chung Cho treatment alleviated alcohol-induced short-term memory impairment through enhancing cell proliferation and BDNF expression with inhibiting apoptosis in the hippocampus. Guem Chung Cho showed maximum effects at 0.1 mg/kg. Based on these results, alcohol extract of Guem Chung Cho may provide therapeutic value for the treatment of chronic alcohol-inducted brain injury. This study was supported by GCordy company.

쓰레기 매립장 주변 농촌 주민들의 삶의 질 연구

이명경,최준열,김인경,조영아,김영신,정혜진,김리나,이영규,조영태,Lee, Myung-Kyung,Choi, Jun-Yeol,Kim, In-Kyoung,Cho, Yeong-Ah,Kim, Young-Shin,Jung, Hye-Jin,Kim, Li-Na,Lee, Young-Kyu,Cho, Young-Tae 대한예방의학회 2006 예방의학회지 Vol.39 No.4

Objectives: This study aims to examine if a garbage dumping site has real and negative influence on the quality of life (QOL) for the nearby residents. The net effects of the residential distance from the garbage dumping site and from the garbage truck route were investigated for five domains of the QOL. Methods: Two hundred fifty seven Shin-dong Myeon residents, Chun-cheon Si, participated in a self-administrated survey. The Shin-dong Myeon garbage dumping site began operating in 1996. ANCOV A with generalized linear models and multiple regression analysis were performed. Results: Descriptive analyses show that a residence nearby a garbage dumping site is negatively associated with the physical and environmental domains of the QOL. The residential distance from the garbage truck route does not exert any significant effect on various domains of QOL, except for the environmental domain. On the multivariate analysis, the residents living near the garbage dumping site tended to have a significantly negative QOL in the physical and environmental domains. However, the distance from the garbage truck route did not show a significant nor substantial effect on the QOL. The demographic and socioeconomic control variables are associated with a number of the QOL domains, and their patterns are consistent with the general expectations. Conclusions: The results indicated that a garbage dumping site is considered to be an environmental hazard among the nearby residents according to the lower scores on the physical and environmental domains of the QOL. The findings from this study provide comprehensive understanding on the residents' QOL, and they may help politicians and policy makers make decisions for appropriate interventions.

시험불안과 정신병리, 기질 그리고 가정환경 간의 구조적 관계에 관한 연구 : 시험불안-우울-불안-자기개념-가정환경간의 인과적 관계분석

신민섭,조수철,유태익 대한소아ㆍ청소년정신의학회 1999 소아청소년정신의학 Vol.10 No.1

만성 틱 장애 뚜렛씨 장애의 임상 특성

신성웅,임명호,현태영,성양숙,조수철 대한소아청소년정신의학회 2001 소아청소년정신의학 Vol.12 No.1

뚜렛씨 장애는 근육틱과 음성틱이 만성적으로 지속되는 질환이다. 만성 틱장애는 근육틱 혹은 음성틱 중 하나만 지속적으로 나타나는 질환이다. 본 연구에서는 1998년 4월 1일부터 1999년 4월 1일까지 서울대학교병원 소아정신과 병동에 입원한 만성 틱 장애 아동과 뚜렛씨 장애 아동의 임상적 특징을 조사하고 두 질환 사이의 관계를 비교하고자 시행되었다. 이들의 특성을 확인하기 위해 대조군으로 학습장애 환자를 선정하였다. 조사 결과는 다음과 같다. 첫째, 만성 틱장애(n=13)와 뚜렛씨 장애 환자(n=29)의 평균 발병연령은 각각7.3±2.5, 7.2±2.2.세, 입원시 연령은 평균 11.7±2.7, 11.5±2.6세, 입원기간은 5.7±5.4, 11.0±8.7주였고두 군 사이에 의미 있는 차이는 없었다. 학습장애의 경우 발병연령(4.2±1.9세)이 두 장애보다 빠르고 의료기관을 찾는 시기(9.8±3.2세)도 빨랐다. 출생 계절은 틱장애 환자들에서 6월에서 9월 사이가 가장 적었지만 의미 있는 차이는 없었다. 남녀의 성비율은 각각 10 : 3, 26 : 3, 11 : 5였고 의미 있는 차이는 보이지 않았다. 환자가 출생할 때의 아버지와 어머니 연령은 세 군 모두 차이가 없었다. 둘째, 정신과적 가족력이 있는 경우도 세 군 사이에 차이가 없었고 각각 24.1%, 46.2%, 56.3%였다. 발병전 유발 요인이 확인된 경우는 만성틱장애와 뚜렛씨 장애에서 11.1%와 35.7%로서 의리 있는 차이를 보이지는 않았지만 학습장애(56.3%)에 비해서는 적었다. 셋째, 만성 틱장애와 뚜렛씨 장애, 그리고 학습장애 환자의 지능지수는 각각 언어성 지능 92.3±10.7, 94.7±14.9, 94.3±13.8이었고, 동작성 지능은 93.0±20.5, 97.5±13.0, 95.0±16.9이었으며, 전체 지능은 91.9±20.1, 95.8±14.5, 93.9±15.1로서 세 군 사이에 의미 있는 차이가 없었다. 기질적 뇌장애 소견은 CT/MRI등에서 0%, 27.3%, 6.3%, 뇌파 이상은 8.3%, 17.2%, 12.5%에서 나타났고 차이는 발견하지 못하였다. 넷째, 항도파민 약물에 대한 반응은 만성 틱장애와 뚜렛씨 장애 환자에서 각각 84.6%, 77.0%가 부분관해를 보였고 완전 관해된 경우는 한 명도 없었으며 두 군 사이에 차이가 없었다. 다섯째, 공동 유병현황을 조사한 결과 주의력결핍 · 과잉운동장애가 학습장애에서 의리 있게 많은 것을 제외하고는 세 군 사이에 통계적으로 의미 있는 차이를 보이지 않았다. 조사 결과 입원한 환자의 경우 만성 틱장애와 뚜렛씨 장애를 가진 환자들은 임상적으로 학습장애를 가진 환자와 많은 부분에서 파이를 보였으나 만성 틱장애와 뚜렛씨 장애를 구분해야 하는 근거를 찾지 못하였다. 중심 단어 : 뚜렛씨 장애 · 틱장애 · 진단 분류 ㆍ 임상적 특성. Tourette's disorder is a disease which manifests one or more motor tics and vocal tics for more than a year. Chronic motor tic or vocal tic disorders are characterized by only one kind of tics for more than a year. We intended to investigate the clinical characteristics of the patients with chronic motor tic disorders or Tourette's disorders who had admitted from May 1, 1998 to May 1, 1999 to Seoul National University Hospital Child and Adolescent Psychiatry ward. In addition, we compared the clinical characteristics of the patients in order to elucidate the relationship between the two disorders. The patients with learning disabilities were selected as controls. There was no statistically significant difference between the onsets of the patients with chronic motor tic disorders(n=13, 7.3±2.5 years) , and Tourette's disorder(n=39, 7.2±2.2 years), but with learning disability (4.2±1.9 years). Also, the patients with chronic motor tic disorder and Tourette's disorder showed similar age at admission (11.7±2.7 versus 11.5±2.6 years), duration of admission (5.7±5.4 versus 11.0±8.7 weeks), mothers' ages at child birth(27.3±2.9 versus 28.3 ±6.7 years old), and fathers' age at child birth (32.2±3.2 versus 33.3±5.2 years old). We observed that those who had learning disabilities were alike in those aspects, except for age at visit to clinic (9.8±3.2 years old). Family history of psychiatric illnesses (24.1% versus 46.2%), recognized precipitating factors (11.1% versus 35.7%) and response to pharmacological treatments (77.8% versus 76.9%) of the patients with chronic motor tic disorders and Tourette's disorders were observed and no differences were found. Comorbid patterns of diseases were noted. Intrafamilial conflicts were more common in the patients with learning disabilities than those with chronic tic disorders or Tourette's disorders. Precipitating factors were observed more frequent in chronic tic disorder and Tourette's disorder than learning disability. Neurocognitive profiles were investigated, and verbal IQs of the patients with chronic motor tic disorder, Tourette's disorder and learning disability were 92.3±10.7, 94.7±14.9, 94.3±13.8, performance IQs 93.0±20.5, 97.5±13.0, 95.0±16.9 and full-scale IQs 91.9±20.1, 95.8±14.5, 93.9±15.1, respectively, which were found to be not significantly different. No difference was found in structural neurological abnormalities and EEG profiles. The patients with learning disabilities showed more common Bender-Gestalt test abnormalities. In conclusion, we have not found any affirmative clues for the division of chronic motor tic disorder and Tourette's disorder in clinical perspective. KEY WORDS : Tourette's disorder ㆍ Tic disorder ㆍ Classification ㆍ Clinical study.

구리 독성에 기인하는 비정상적인 어류행동의 신경생화학적 분석

신성우,조현덕,전태수,김정상,이성규,고성철 한국환경독성학회 2003 환경독성보건학회지 Vol.18 No.2

The goal of this study is to develop a biomarker used in monitoring abnormal behaviors of Japanese medaka (Oryzias latipes) as a model organism caused by hazardous chemicals. Japanese medaka was treated by copper of appropriate sublethal concentrations after starvation for 48 hr, The untreated individuals showed common behavioral characteristics (i.e., smooth and linear movements). Locomotive activity of the fish was monitored using an image processing and automatic data acquisition system. When treated with copper (100 ppb), the fish showed shaking patterns more frequently. As the concentration of copper increased to 1,000ppb, activity decreased, and the fish showed an erratic movement. Fish were exposed to copper at various concentrations (0, 100 and 1,000 pph) for 24 hrs, and acetylcholine esterase (AChE) activity was observed. When fish were exposed to 1,000 ppb of copper, the body AChE activities appeared to decrease but the head AChE activities showed little change. Expressions of tyrosine hydroxylase (TH) protein in the different organs from both head (brain) and body(kidney) portions affected by the copper treatment were analyzed using immunohistochemical technique compared with control. Five organs of the fish (olfactory bulb, hyothaiamus, optic lobe, pons and myelencephalon regions) showed a relatively strong TH protein expression in the control experiment. A differential expression of TH, however, was observed in the treatment (100 ppb and 1,0M ppb). The treatment (1,000 ppb) significantly suppressed TH protein production in the brain regions. In kidney, however, the same treatment caused little suppression compared with the control. Copper appeared to be less effective in suppression of TH than diazinon, a known TH suppressor. It was concluded that TH could be used as a potential biomarker to monitor the acute copper toxicity in Japanese medaka.

사인에 의한 즉시형 과민반응의 억제 효과

신태용,염정열,김원,김현미,박해정,장진이,조성룡,채병숙 우석대학교 생명과학연구소 1998 생명과학연구소 논문집 Vol.2 No.-

We investigated the effect of aqueous extract of Ammomum xanthioides(AXAE) on immediate hypersensitivity. AXAE inhibited systemic anaphylaxis induced by compound 48/80 in mice. AXAE inhibited serum histamine levels induced by compound 48/80 in mice. Moreover, AXAE dose-dependently inhibited histamine release in peritoneal mast cells activated by compound 48/80. These results indicate that the AXAE may be benificial in the regulation of immediate type allergic reaction.

에틸렌디아민을 이용하여 Solvothermal Synthesis로 Y₂O₃ : Eu^(3+) 나노 입자의 제조 Eu^(3+) Nanoparticles with the Solvothermal Synthesis using Ehtylenediamine

신수철,조태환 한국화학공학회 2003 Korean Chemical Engineering Research(HWAHAK KONGHA Vol.41 No.5

에틸렌디아민을 용매로 하여 용매열합성으로 200℃에서 1-5시간 반응시킨 후 1,000℃에서 1,400℃로 2-4시간 동안 대기중에서 열처리 과정으로 Eu가 도핑 된 Y₂O₃ 나노 입자를 제조하였다. 1,000℃에서 2시간 동안 열처리한 결정의 X선 회절패턴은 보고 된 데이터(JCPDS 카드파일 41-1105, a=10.60418 Å)와 거의 일치하는 격자상수 a=10.6029 Å인 순수한 큐빅상의 Y₂O₃을 나타내었다. 제조된 형광체의 평균입자 크기는 대략 100 nm로 구형의 형태를 가진다. 열처리 온도가 증가함에 따라 형광체 입자의 크기가 감소하였으며, 또한 형광체의 발광 세기가 증가하였다. PL 스펙트럼 분석 결과, Eu의 농도가 3% 도핑 된 Y_(2-x)O₃:Eu^(3+)_(x) (x=0.06) 형광체는 250 nm파장에서 여기 스펙트럼을 나타내었고, 611 nm 파장에서 주발광 스펙트럼을 나타내었다. Eu doped Y₂O₃ nanoparticles were prepared with the solvothemal synthesis using ethylenediamine solvent at 200℃ for 1-5 h and then annealed in air at from 1,000℃ to 1,400 for 2 4 h. The X-ray diffraction pattern of the crystals annealed at 1,000℃ for 2 h could be indexed as pure cubic cell of Y₂O₃ with the lattice parameter a=10.6029 Å which is very close to the reported value (JCPDS Card File 41-1105, a=10.6041 Å). Average sizes of prepared phosphor particles had about 100 nm, size and spherical morphology. The phosphor panicle size decreased and the emission intensity increased as the annealing temperature increased. Through PL spectrum analysis, the 3% Eu doped Y_(2-x)O₃:Eu_(x)^(3+)(x=0.06) phosphor showed the excitation spectrum at 250 nm wavelength and the maximum emission spectrum appeared at 611nm wavelength.

태양광 발전전력을 입력으로한 DC/DC 컨버터의 일정출력제어

조용길,허태원,신동률,조광승,우정인 東亞大學校 大學院 2000 大學院論文集 Vol.25 No.-

In this paper, it is proposed to constant power control of solar power system. The solar power system has disadvantage that low power density and variable power output. Proposed strategy is controled by DC/DC converter using phase shift PWM and I-PD type control applying type 1 digital system. The validity of proposed control strategy is verified from simulations results using PSIM.

Fluoranthene 독성에 기인하는 비정상적 어류행동의 신경생화학적 분석

신성우,조현덕,전태수,김정상,이성규,고성철 한국환경독성학회 2003 환경독성보건학회지 Vol.18 No.2

Fluoranthene, a common polycyclicaromatic hydrocarbon (PAH), exhibits phototoxicity which may affect aquatic organisms, The eventual goal of this study is to develop a biomarker of Japanese medaka (Oryzias iatipes) used in monitoring hazardous chemicals in the ecosystem. In this study we investigated neural toxicity of fluoranthene in Japanese medaka (Oryzias latipes) along with comparative analysis of corresponding behavioral responses. The untreated individuals showed normal behavioral characteristics (i.e' smooth and linear movements). The treated fish, however, showed stopping and abrupt change of orientation (100 ppb), and severely reduced locomotive activity and enhanced surfacing activity (1,000ppb). Treatment of the medaka fish with fluoranthene caused a significant suppression of acetylcholine esterase (AChE) activities in the body portion but not in the head portion. When fish were exposed to 1,000pph of fluoranthene for 24hr, the body AChE activities decreased from 126.±31.89 (nmoles substrate hydrolyzed per min per mg protein) 10 49.51 ± 11.99. Expressions of tyrosine hydroxylase (TH) protein in the different organs from both head and body portions were comparatively analyzed using an immunohistochemical technique. Five organs of the medaka fish showing a strong TH protein expression were the olfactory bulb, hypothalamus, optic lobe, pons and myelencephalon regions. This study provides molecular and neurobehavioral bases of a biomonitoring system for toxic chemicals using fish as a model organism.

상 요추 추간판 탈출증의 수술적 치료

조태현,송준혁,김명현,박향권,김성학,신규만,박동빈 梨花女子大學校 醫科大學 醫科學硏究所 2000 EMJ (Ewha medical journal) Vol.23 No.3

Objectives : Lumbar disc herniations at the L1-L2, L2-L3, and L3-L4 level are rare. The purpose of this study is to observe the variable clinical finding of upper lumbar disc herniations and to provide proper treatment modality. Patients and Methods : Between 1998 Jan. and 1999 Dec., seventeen patients with upper lumbar disc herniations who were undergone surgery in our institute were retrospectively evaluated. Patients were evaluated based on following factors : age, sex, aggravating factor, symptoms and signs type of disc herniation, type of surgery, and outcome of post-surgery. Results : The incidence of lumbar disc herniation at the level of L1-2, L2-3 and L3-4 is 6.1% with declining frequency as the level ascends. The peak age incidence is 6th decade in both sex. Preoperative symptomes and signs are variabe. In sixteen cases, posterior approach was done. In these cases, twelve cases were performed microscopic partial hemilaminectomy, and four cases with spinal stenosis were performed total laminectomy and posterior screw fixation with bone fusion. In one case, lateral extracavitary approach was done. In results of operation, fourteen cases showed more than good grade(82%). Conclusion : The age incidence of lumbar disc herniations at the level of L1-2, L2-3 and L3-4 older than lumbar disc herniations at the lower level of L4-5 and L5-S1. The signs and symptoms are variable. In our cases, most of the patients were performed posterior approach with microscopic partial hemilaminectomy except the patients combined spinal stenosis. One case was performed a lateral extracavitary approach because the risk of the cord and cauda equina injuries. The prognosis of upper lumbar disc herniations after treatment with only microscopic partial hemilaminectomy and diskectomy is comparable with the prognosis of lumbar disc herniations at the lower level.