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혈관성 파킨슨증의 경사에코 자기공명촬영 소견 : 환자-대조군 연구 A Case-Control Study
배희준,김병건,구자성,김현숙 대한치매학회 2002 Dementia and Neurocognitive Disorders Vol.1 No.2
Background & objective : Changes of signal intensity in the various Structures of basal ganglia(BG), Which can be detected by gradient echo MRI(GE-MRI). have been reported in different kinds of parkinsonism Altered iron content in these structures may be a possible explanation of above phenomenon Vascular parkinsonism is a kind of parkinsonism syndrome and is common However. There have been no reports about the BG signal changes on GE-MRI in vascular parkinsonism Methods : We investigated the difference of signal intensity in various BG and midbrain structures between 36 patients with vascular parkinsonism. which was defined as clinical parkinsonism+evidence of relevant vascular lesion on MRI+poor or no response to levodopa, and age-& sex- matched controls. The intensity of BG on GE-MRI was graded as 0-3 relative to cortical gray matter Results : There were no significant differences in clinical characteristics between two groups Among patients with vascular parkinsonism, hypointensity was observed in globus pallidus in 94.4%. in putamen in 58.3% in head of caudate in 33.3%, in substantia nigra in 72.2%,& in red nucleus in 52.8% There was no significant linear trend in the association between signal intensity of above structures and the presence of vascular parkinsonism (p>0 05 on Mantel-Haenszel chi-square test) However, the correlation between the degree of white matter lesions and the presence of vascular parkinsonism was statistically significant (p=003). Conclusions : Our GE-MRI study fails to prove that iron content of various BG structures in patients with vascular parkinsonism is different from controls.
배준우,황재근,박경흠,양희준,이춘열 嶺南大學校 工業技術硏究所 2004 工業技術硏究所論文集 Vol.32 No.1
Recently, force measurement systems are commonly used in many industrial fields and the precision of the measurement system is getting more important as the industry needs more precise tools and instruments to make high quality products. However, a high precision force measurement system is hard to make unless we know precisely the causes, quality and quantity of measurement errors in advance. In this work, many possible mechanical causes of measurement errors are reviewed including ratio of length to diameter of sensing part, radius of contact area, radius of bearing part, ratio of material properties and change of boundary conditions. Also, the measurement errors are analyzed by nonlinear finite element method and the nonlinear behavior of the errors are investigated. The results can be used to design force measurement systems and expected to be very useful especially for compact type load cells.
정보제공자와의 면담에 의해 진단된 뇌졸중후치매의 유병률과 상관인자에 관한 연구
배희준,이건세,김형수,김병건,구자성,권오현,박종무 대한치매학회 2004 Dementia and Neurocognitive Disorders Vol.3 No.2
Background and Objectives: With increasing age of population, stroke and dementia become greater health problems in Korea. However, there have been no studies on poststroke dementia in Korea. We intended to elucidate the frequency and clinical correlates of poststroke dementia in a hospital-based cohort. Methods: From July 2001 to July 2002, 372 patients were hospitalized to Eulji General Hospital within 7 days from onset with acute stroke or transient ischemic attack. Two hundred-eight patients (55.9%) were followed up and interviewed more than 1 year later (451 ±83.3 days). Dementia was diagnosed by Korean Dementia Screening Questionnaire (KDSQ) obtained by a direct interview. Based on Eulji Stroke Registry, demographic factors, risk factors for stroke, stroke characteristics, and stroke outcomes were gathered and examined. Results: Of 208 patients, poststroke dementia was detected in 36 patients (17.3%, 20 males, age=64.5±9.4 years). Poststroke dementia was associated with history of stroke, aphasia, modified Rankin Disability Scale (MRDS) at 3 month after stroke and when interviewed, and Barthel index at 6 months after stroke (p;0.05). Its correlation with diabetes mellitus and National Institute of Health Stroke Scale at discharge were marginally significant (0.05;p;0.1). Conclusions: Post-stroke dementia is common in Korean stroke patients. Its frequency is comparable to that in other countries. The correlates of poststroke dementia and their clinical meanings are demonstrated.
열공형과 비열공형 피질하 혈관성 치매에서 위험인자의 차이에 관한 비교 연구
배희준,정지향,유경호,나덕렬,김상윤,최경규,양동원,손의주,이상도,김재우,박경원,김응규,이재홍,박미영,한일우,함동석,최문성,하충건,최성혜,이애영,이병철,한설희 대한치매학회 2003 Dementia and Neurocognitive Disorders Vol.2 No.2
Backgrounds and Objectives: Vascular dementia is a group of dementing disoders arising from various stroke syndrome. Among these. subcortical ischemic vascular dementia (SIVD) is regarded as a relatively distinct clinical entity. However, MRI patterns of SIVD are not homogenous. In some patients, lacunes are dominant, and in others, subcortical white matter changes are. This study was designed to compare risk factor profiles between SIVD with and without multiple lacunes. Methods: We divided 47 subjects (22 males, mean age. 68 years) recruited from VADAPET (Multicenter Trial For Evaluation Of The Changes In the PET Images Of Subcortical Vascular Dementia Patient) study into two groups one with more than 5 lacunes in deep gray matter (lacune group) and the other with 5 or less(non-lacune group) Clinical characteristics and laboratory findings of two groups were compared. Results: Nineteen of 47 patients (40%) belonged to the lacune group. The lacune and non-lacune groups d d not differ in the following variables: age, hypertension, diabetes mellitus, hyperlipidemia heart disease, history of stroke or TIA, history of trauma or major surgery, family history of hypertension stroke, or dementia, age at diagnosis of dementia, body mass index, white blood cell count, ESR, CRP, fibrinogen, hemoglobin A1C, total cholesterol. LDL cholesterol creatinine, proteinuria, glucosuria, and microhematuria. However, male sex, smoking alcohol. hemoglobin, and HDL cholesterol were possibly associated more with lacune group SIVD than with non-lacune group (p<0 1) Multivariate analyses revealed that smoking, hemoglobin, and HDL cholesterol were independent predictors of SIVD with multiple lacunes Conclusion: Our study suggests that SIVD with multiple lacunes may be significantly different in smoking habits hemoglobin, and HDL cholesterol from SIVD without multiple lacunes.
배희준 대한치매학회 2003 Dementia and Neurocognitive Disorders Vol.2 No.2
Mild cognitive impairment (MCI) is a recently described syndrome that is currently thought of as transition phase between healthy cognitive aging and dementia At the moment, many treatment strategies for Alzheimer's disease were extrapolated to interventional strategies in MCI Most investigators believe that by the time the clinical diagnosis of Alzheimer's disease is made, sufficient neuronal damage has taken place in the brain to make reversal of the condition unlikely. Therefore, it is a more effective strategy to treat patients in preclinical stage of Alzheimer's disease, such as MCI, than to treat in its advanced stage This article reviews currently available symptomatic treatments and visionary treatments for Alzheimer's disease and MCI. A number of clinical trials for MCI, which are ongoing at now, are discussed.
길경 Saponin 이 고지방식이를 한 흰쥐의 혈청, 간장 및 분변 지질 함량에 미치는 영향
박무희,이영주,황성원,한준표,배만종 대구효성가톨릭대학교 식품과학연구소 1994 식품과학지 Vol.6 No.-
6주간 고지방식이를 섭취한 흰주에 있어서 길경 saponin이 지방 축적 억제와 대사에 미치는 영향을 검토하고자 혈청과 간장 및 분변 중 지방 성분을 생화학적으로 분석하여 다음과 같은 결과를 얻었다. 1. 혈청 및 간장중의 총지질, 총콜레스테롤 및 중성지방 함량은 길경 saponin군이 대조군에 비하여 유의한 감소를 보였다. 2. 분변 중 총지질 및 총콜레스테롤 함량은 대조군과 비교할 때 길경 saponin군이 다소 배설이 증가되었으나, 유의성은 인정되지 않았다. This study was conducted to investigate the effect of Platycodi radix saponin(PRS) on the reduction of lipid status in rats fed on high fat diet for 6 weeks after which lipid contents were measured in serum, liver and feces. The results obtained from this study are as follows; That the levels of total lipid, total cholesterol and triglyceride in serum and liver were significantly lower in the PRS group as compared with the control group. The contents of total lipid and total cholesterol excreted in the feces were tended to be slightly increase in PRS group compared to the control group, which were not significant.