• Title/Summary/Keyword: neuroscience

검색결과 897건 처리시간 0.028초

갬블링 과제를사용한 의사결정 과정에서 중앙 전전두엽의 영역별 활성화에 대한 연구 (Sequential Involvement of Distinct Portions of the Medial Prefrontal Cortex in Different Stages of Decision Making Using the Iowa Gambling Task)

  • 이재준;배성진;김양태;장용민
    • Investigative Magnetic Resonance Imaging
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    • 제13권2호
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    • pp.127-136
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    • 2009
  • 목적: 정상인을 대상으로 과제의 규칙을 모른체 의사결정를 하는 경우 시간에 따른 뇌활성 영역의 차이를 lowa Gambling 과제를 수행하는 자기공명 뇌기능 영상을 사용하여 알아보고자하였다. 대상 및 방법: 14명의 오른손잡이 정상인(여자 5명, 남자 9명, 평균나이 26.8세)을 대상으로 100개로 구성된 lowa Gambling과제를 수행하는 동안 자기공명 뇌기능영상을 획득하였다. GE 3.0T 자기공명영상 장치에서 혈액산소포화 의존(BOLD)기법을 사용하여 EPI 데이터 (에코시간 40 ms, 반복시간 2000 ms, 매트릭스 $64{\times}64$)를 획득한 후 MATLAB버전 7.2 (The Mathworks Inc., Natick, MA, USA)와 Statistical Parametric Mapping (SPM 2; Wellcome Department of Imaging Neuroscience, London, UK) 분석툴을 이용하여 총 100개 중 20개 단위로 구성된 5개의 블록으로 나누어 분석하였다. 결과: 과제 수행초기 블록에서는 위쪽 중앙 전전두뇌엽에서의 뇌활성화를 나타내고 과제를 수행해 감에 따라 뇌활성화 영역이 점차 중앙 전전두뇌엽의 아래족으로 이동하는 결과를 나타내었다 (p < 0.005). 결론: 의사결정 과제의 규칙을 모르는 경우 과제를 수행하며 규칙을 알아가는데는 위쪽 중앙 전전두뇌엽의 영역을 사용하고 과제의 규칙을 깨달은 다음 의사결정을 수행하는 경우에는 아래쪽 중앙 전전두뇌엽의 영역을 사용함을 알수 있었다.

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불면증에 대한 동서의학의 약물치료 비교 분석 (A Comparison Research of Eastern and Western Medication on the Insomnia)

  • 정송화;김지훤;이효경;장현호;김태헌;류영수;강형원
    • 동의신경정신과학회지
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    • 제20권3호
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    • pp.65-88
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    • 2009
  • Objectives : There has not been the comparison research of medication on the Insomnia as the complementary significance of the Oriental-Western Cooperative Therapeutic Viewpoint so far. The aim of this preliminary research is to study Eastern and Western Medication Model for the Insomnia through the comparison of Oriental Medication based on "Sang Han Lon" and "Dong yui bo gam". Methods : The author researched oriental-western viewpoints and the present treatment condition of Sleep and Sleeping Pills with reference to Korean articles issued since 1975, dissertations, journals registered or candidated on KCI, alternative medicine journals on Pubmed, and books concerning Neuropsychiatry. In the field of Oriental medical study, this study was demonstrated on "The Oriental Medical textbook of neuropsychiatry", "Sang han lon", "Dong yui bo gam" and the present research trend. Results : In Oriental Medicine, Insomnia is treated according to si-jie-bu-shui-zung (思結不睡證) type, rong-xie-bu-zu-zung (榮血不足證) type, yin-her-nae-re-zung (陰虛內熱證) type, xin-dan-her-qie-zung (心膽虛怯證) type, dam-xian-yu-jie-zung (痰涎鬱結證) type, and wei-zhong-bu-he-zung (胃中不和證) type etc. In Western Medicine, Insomnia has been treated by Barbiturate over 60's and BZ over 70's. According to recent treatment on Insomnia, Zolpidem or Zaleplon, which is short-lived and has less side effects, is used much, and tri-cyclic antidepressants are prescribed on a chronic psycho-physiological insomnia. Conclusions : Generally, Insomnia is being treated by controlling whole ways. The oriental medication is less effective for sleep induction. On the contrary, that of western medication is very effective for sleep induction, but there are many possibilities of side effects. If this two mutual therapy is conducted cooperatively, more effective medical care might be expected. Therefore, it is considered that not only the oriental medical study for sleep induction, but the study of Oriental-Western Cooperative Therapy should be preceded to treat Insomnia from now on.

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화병환자의 MMPI 프로파일과 성격특성 연구 (A Study on the Characteristics of MMPI Profile and Personality in Patients with Hwa-byung)

  • 김지훤;박보라;장현호;김태헌;류영수;강형원
    • 동의신경정신과학회지
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    • 제20권3호
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    • pp.189-203
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    • 2009
  • Objectives : This study was to analyze characteristics of MMPI profile, personality and defensive mechanism on 32 Hwa-byeng patients. Methods : 32 Hwa-byeng patients and 28 normal control group were administered the MMPI. The characteristics of MMPI profile and the clinical scales of personality and defensive mechanism were analyzed statistically. Results : 1. Half of female Hwa-byeng patients are in their forties, twelve patients are high school graduates, housewives seem to have Hwa-byeng more than workers, and married ones have Hwa-byeng more than singles, divorcees or separated one 2. 60.6% patients are getting stressed from their husbands(the specific reasons are infidelity(55%), incapability(25%) and violence(20%)). And the rest are from in-law(28.8%), children(6.4%) and their own parents(3.2%). 3. MMPI profile of Hwa-byeng patients appeared as a type of 3-1 elevated by the scale of 3(Hy) and 1 (Hs). And Hwa-byeng patients appeared significantly high in the rest of scales except L, K, Mf and Ma scales comparing to control group. 4. Hwa-byeng patients were classified into 3 groups. First group is "V" type which is high in K scale and low in 3 (Hy), 4(Pd), 6(Pa). Second group is "V" type which is high in K scale and high in 3(Hy), 4(Pd), 6(Pa). Third group is high in F scale and high in 1(Hs), Z(D), 3(Hy), 4(Pd), 6(Pa), 7(Pt), 8(Sc) and 0(Si). 5. The analysis on MMPI profiles indicates that the thirties are highier in F scale than the fifties, the fifties are highier in Hy scale than the forties, workers are highier in Pd scale than housewives, singles or divorcees are highier in Pa scale than the married. 6. The characteristics of personality in Hwa-byeng patients are as follows. They are significantly lower in HST, NAR and very higher in CPS, PAG, DEP, STY, AVD, SZD comparing to control group. Especially in AVD and SZD scales are appeared the highest.

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Similarity of Gene Expression Profiles in Primary Brain Tumors with the Toxic Mechanism by Environmental Contaminants

  • Kim, Yu-Ri;Kim, Ki-Nam;Park, Yoon-Hee;Ryu, Yeon-Mi;Sohn, Sung-Hwa;Seo, Sang-Hui;Lee, Seung-Ho;Kim, Hye-Won;Lee, Kweon-Haeng;Kim, Meyoung-Kon
    • Molecular & Cellular Toxicology
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    • 제1권3호
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    • pp.209-215
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    • 2005
  • Recently, a large number of clinical experiments have shown that exposure of organic pollutants lead to various cancers through the abnormal cell growth. Environmental pollutants, such as 2, 3, 7, 8-Tetrachloro dibenzo-p-dioxin (TCDD) and polycyclic aromatic hydrocarbons (PAHs), are carcinogen and are known to cause the cognitive disability and motor dysfunction in the developing of brain. The effects of these pollutants on neurodevelopmental disorder is well established, but the underlying mechanism(s) and similarity of gene expression profiles in human brain tumors with organic pollutants still remain unclear. In this study, we first examined the gene expression profiles in glioblastomas compared with meningioma that are kinds of primary human brain tumor by using human cDNA microarray. The results of cDNA microarray analysis revealed that 26 genes were upregulated (Z-ratio>2.0) and 14 genes were downregulated (Z-ratio<-2.0) in glioblastoma compared with meningioma. From the altered gene patterns, mitogen-activated protein kinase (MAPK) signaling related genes, such as MAP2K3, MAP3K11 and jun activated domain binding protein, and transcription factors, such as UTF2 and TF12, were upregulated in glioblastoma. Also, we tried to investigate the relation between important genes up- and down-regulated in giloblastoma and various organic pollutants. Therefore, the identification of changes in the patterns of gene expression may provide a better understanding of the molecular mechanisms involved in human primary brain tumors and of the relation between gene expression profiles and organic pollutants in brain tissue.

The Use of Inappropriate Antibiotics in Patients Admitted to Intensive Care Units with Nursing Home-Acquired Pneumonia at a Korean Teaching Hospital

  • Kim, Deok Hee;Kim, Ha Jeong;Koo, Hae-Won;Bae, Won;Park, So-Hee;Koo, Hyeon-Kyoung;Park, Hye Kyeong;Lee, Sung-Soon;Kang, Hyung Koo
    • Tuberculosis and Respiratory Diseases
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    • 제83권1호
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    • pp.81-88
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    • 2020
  • Background: Use of appropriate antibiotics for the treatment of pneumonia is integral in patients admitted to intensive care units (ICUs). Although it is recommended that empirical treatment regimens should be based on the local distribution of pathogens in patients with suspected hospital-acquired pneumonia, few studies observe patients admitted to ICUs with nursing home-acquired pneumonia (NHAP). We found factors associated with the use of inappropriate antibiotics in patients with pneumonia admitted to the ICU via the emergency room (ER). Methods: We performed a retrospective cohort study of 83 pneumonia patients with confirmed causative bacteria admitted to ICUs via ER March 2015-May 2017. We compared clinical parameters, between patients who received appropriate or inappropriate antibiotics using the Mann-Whitney U, Pearson's chi-square, and Fisher's exact tests. We investigated independent factors associated with inappropriate antibiotic use in patients using multivariate logistic regression. Results: Among 83 patients, 30 patients (36.1%) received inappropriate antibiotics. NHAP patients were more frequently treated with inappropriate antibiotics than with appropriate antibiotics (47.2% vs. 96.7%, p<0.001). Methicillin-resistant Staphylococcus aureus was more frequently isolated from individuals in the inappropriate antibiotics-treated group than in the appropriate antibiotics-treated group (7.5% vs. 70.0%, p<0.001). In multivariate analysis, NHAP was independently associated with the use of inappropriate antibiotics in patients with pneumonia admitted to the ICU via ER. Conclusion: NHAP is a risk factor associated with the use of inappropriate antibiotics in patients with pneumonia admitted to the ICU via the ER.

침술이 심신의학의 지평을 확장하다 (Acupuncture Expands the Boundary of Mind-Body Medicine)

  • 김재효
    • Korean Journal of Acupuncture
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    • 제33권3호
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    • pp.139-147
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    • 2016
  • 목적 : 침술은 동북아시아 지역의 중심에서 시작하여 2천년 이상의 역사와 함께 아시아뿐만 아니라 근-현대 전 세계의 임상의료 현장에서 크게 번창하고 있다. 이와 함께 침술의 객관화를 위하여 의생명과학 여러 방면에서 검증하는 노력이 진행되어 오고 있다. 그 과정을 통해 각종 동물을 비롯해 사람에서 침술의 다양한 효과와 기전이 점차 밝혀지고 있다. 필자는 침술 치료에서 의사와 환자가 주관적으로 경험하는 것을 설명하고, 그것의 임상적 유의성을 심신의학적 측면에서 이해하고자 하였다. 방법 : 침술과 명상에서 각각 진행되었던 뇌신경과학 분야의 여러 실험 결과들을 비교함으로써 심신 상관성이란 의미를 찾고자 하였다. 그밖에 한의학 임상영역에 시도되는 한의학과 심리학이 접목된 새로운 치료법을 정리하였다. 결과 및 결론: 침술의 치료효과와 관련해 "조기치신(調氣治神)"을 매우 중요한 개념으로 표현하고 있다. 이는 인체에 다양한 기능의 균형을 조절하고, 환자의 의식과 심리상태를 조절한다고 설명한다. 전통의학과 현대의학의 큰 차이는 현대의학은 환자와 질병을 대상화시켜 객관화 하는 노력을 추구하였고, 전통의학은 환자와 의사가 경험하는 대상을 자신과 분리하지 않는 주관적 체험을 추구하고 있다는 것이다. 그리고 전통의학은 주관적 체험을 배제하지 않고 진료에서 활용한다는 것이다. 그래서 전통의학의 역할과 의미를 이해하고자 한다면, 객관적 효과와 수량적 결과뿐만 아니라 환자와 의사의 주관적 체험과 이야기도 중요하게 다뤄져야 한다. 침술의 역할과 의미는 의사와 환자 사이에서 나타나는 행위의 모든 과정을 고려해 설명해야 할 것이다. 아마도 그 과정에서 침술이 찾는 해결의 길은 명상이 찾는 해결의 길과 만날 것이라 믿는다.

경혈정위 보조도구의 정확성 및 편의성 평가 연구 (A Study of Accuracy and Usability for Acupuncture Points Locating Devices)

  • 채윤병;강오석;함대현;이승호;김재순;김관형;김희영;이혜정;박히준
    • Korean Journal of Acupuncture
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    • 제24권2호
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    • pp.61-76
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    • 2007
  • Objectives : Accurate and reproducible location of an acupuncture point (AP) have been considered an essential component of meaningful acupuncture research as well as clinical practice. Several kinds of devices have been developed and widely used for the convenience of locating APs. However, the accuracy and convenience of these devices have not been systematically evaluated. The present study was performed to find out the most suitable tools for the location accuracy and location easiness of APs among the devices respectively. Methods : Twenty subjects attempted to locate APs, including PC5 and SP6 in the arm and leg, using four different AP positioning methods: one Conventional Ruler method and three alternative methods including Cunometer, Transparent AP meter, and Elastic Ruler method. The position marked on each AP was plotted onto a thin, flexible, and transparent plastic film, and the dispersion rate of the positions was determined and recorded. The elapsed time for locating each AP was measured. After that each subject was answered to a short questionnaire regarding the degree of convenience and confidence of use of each method for AP location. Results : All of three alternative methods took less time than Conventional Ruler method did. Among these alternative methods, the accuracy of Elastic Ruler method was markedly higher than others. The degree of convenience of the Cunometer and the confidence of Elastic Ruler method were the highest among these alternative methods. Conclusions : The present study indicates that the Elastic Ruler method was the most compatible for the conventional Ruler methods. However, there are many factors need to be reconsidered. Improved devices for locating AP are imperatively needed for clinical practice.

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신경전달물질 및 신경내분비 Marker를 이용한 치료반응의 평가 (Neurotransmitter and Neuroendocrine Markers as Predictors of Therapeutic Responses In Psychiatric Disorders)

  • 한창환
    • 생물정신의학
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    • 제2권1호
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    • pp.3-19
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    • 1995
  • Numerous investigators have conducted extensive investigation in the search for biological markers in psychiatric illness. There are, as a test of q biological approach to the diagnosis of the psychiatric illness, tests for the neurotransmitters, their metabolites, and related enzymes, the neurotransmitter receptors, the neuroendocrine output and response, the membrane transport, peptides and eletrolytes. They are called the biological markers, and they are helpful for the diagnosis or differential diagnosis, choice of treatment or drugs, symptom improvement, predictor of recurrence and anticipation of suicidal attempt. These studies are among the main purposes that are pursued in the neuroscience and based on the potential utility of the biological markers mentioned above. Since 1970's, lots 01 biological markers' studies for the diagnosis, differential diagnosis or subtypes differentiation have been done but varieties of different opinions have been drawn since then through they could explain the charaters of main psychiatric illness(especially schizophrenia and mood disorder). But, the search for biological markers, including displines of neuroendoclinology and neurochemistry(neurotransmitter and thair metabolite), has yielded a number of putative trait merkers and state markers for psychayric illness. This paper aims to anticipate or evaluate the good response to the therapy(Therpeutic response) with lots of markers. Acoording to the diagnosis of lots of diseases or subtypes, we are going to review the papers, mainly concern with 'Is there any Marker' or 'Is any test possible to detect the improvement clinically?' 'Is it possible to predict the recurrence or good prognsis?' or 'Is it possible to select any drug or therapy to bring the good response?' The biological tests to review are mainly the metabolites of catecholamine neurotransmitter, and especially neuroendocrine test based on the knowledge that hormons of the adenohypophysis are influenced by activity of the cerebral or limbic neurons as well as the hypothalamus ones. Among them, author introduced some clinically available tests that are DST, TRH stimulation test(TRHST), GH stimulation test, and the urine MHPG test that can give us the evaluation of the treatment response, the predictor for recurrence or choice of drug that can bring a good response. So author discussed thair potential utility in clarifying, therapeutic, and prognostic issues in psychatric illness. We hope they'll be used and look forward to more active study on the different opinion.

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$H_{2}O_2$와 A$\beta$로 유도된 pc12 cell에서 생산조인(生酸棗仁) 수추출물의 항산화 및 항치매 효과 (The Effects of Antioxidant and Anti-Alzheimer on Hydrogen peroxide and $\beta$-amyloid peptid-induced PC 12 cells by Semen Ziziphi Spinosae water extract)

  • 이상원;김대현;윤종현;김진우;정은영;이성근;이기상;김태헌;류영수;강형원
    • 동의신경정신과학회지
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    • 제19권3호
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    • pp.179-193
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    • 2008
  • Objective: The antioxidant and anti-Alzheimer effects of Semen Ziziphi Spinosae (SZS) water extract against the amyloid beta peptide (1-42) or H202-induced oxidative damage and cell death were investigated in rat pheochromocytoma line PC 12. Methods: The cells were incubated with SZS water extract and oxidative damage-inducing materials, amyloid beta peptide (1-42) or H2O2 for 24 h. The cellular viability was assessed by WST-1 assay, cytotoxic damage by LDH activity assay, oxidative damages of cells by fluorescence spectrophotometric method, and apoptosis by TUNEL staining assay. Results and Conclusions: 1. Preincubation of the cells with SZS water extract prior to amyloid beta peptide (1-42) (2 uM) or H2O2 (30 uM) exposure elevated the cell survival close to the control and decreased the level of LDH activity and the fluorescence from the cell homogenates and TUNEL staining of the cells, compared to only amyloid beta peptide (1-42) (2 uM) or H2O2 (30 uM) treated conditions. 2. Our study suggests that Semen Ziziphi Spinosae (SZS) water extract has protective effects against amyloid beta peptide (1-42) or H2O2-induced cell toxicity through the antioxidation mechanism, which might be beneficial for the treatment of Alzheimer's disease.

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한양방 협진치료를 받은 치매와 경도인지장애 환자에 대한 후향적 의무기록 분석 (Retrospective Analysis of Patients Suffering from Dementia or Mild Cognitive Impairment Treated by Collaboration between Western and Korean Medicine)

  • 이고은;정문주;이성익;김남권;김진원;강형원
    • 동의신경정신과학회지
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    • 제29권2호
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    • pp.111-119
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    • 2018
  • Objectives: To investigate the characteristics of patients diagnosed with dementia or mild cognitive impairment who are treated by means of a blend between Western and Korean medicine. Methods: We searched for outpatients with dementia or mild cognitive impairment by means of a collaboration between Western and Korean medicine from August 1, 2015, to July 31, 2017, through electronic medical records in Wonkwang Hospital. The records were retrospectively analyzed according to the patients' demographic and clinical characteristics, pathway of medical care, diagnostic tests, treatment, and medical expenses. Results: Thirteen patients were included in the analysis. Among them, six patients were diagnosed with mild cognitive impairment, five with dementia, Alzheimer's type, one patient with frontotemporal dementia, and one patient with unspecified dementia. Twelve of the thirteen patients were over 60 years of age. The number of pathways from the Dept. of Neurology to the Dept. of Neuropsychiatry of Korean Medicine was almost the same as the opposite pathway. The most used diagnostic test in Korean medicine was a neuropsychological test such as SNSB, MMSE and GDS. In Western medicine, hematology and neuroimaging were frequently used for patients. Acupuncture in Korean medicine and medication in Western medicine were the most frequently used. In Korean medicine, uncovered service costs were much higher than covered service costs,. whereas, in Western medicine, covered service costs were higher than uncovered service costs. Conclusions: This study describes the basic characteristics of dementia and mild cognitive impairment patients treated by a collaboration between Western and Korean medicine. Based on these results, a clinical pathway of the collaborative practice system between Western and Korean medicine for dementia patients needs to be developed.