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禹鍾仁,延炳吉,徐維憲,朴贊雄,李定均 대한신경정신의학회 1991 신경정신의학 Vol.30 No.6
The uptake of C3H ) choline into synaptosomes prepared from rat corpus striatum and frontal cortex was studied at choline concentration varying from 0.05 to 2.0 |iM. The sodiumdependent high affinity choline uptake in these brain regions exhibited saturation kinetics with Km values o f 0.37 (iM in corpus striatum and 0.35(iM in frontal cortex. A l3+ inhibited total choline uptake at concentrations greater than 10-4 M. Double-reciprocal plots indicated that A l3+ was a noncompetitive inhibitor o f high affinity choline uptake with Ki values of 2.17X10 3 M in corpus striatum and 0.82 X10 3 M in frontal cortex. The presence of 1 m M Ca2+ neither influenced high affinity choline uptake, nor antagonized the inhibitory effects of A l3+. A l3+ did not alter the activities of choline acetyltransferase and acetylcholinesterase at all substrate and inhibitor concentrations studied. These data suggest that high A l3+ levels modify cholinergic transmission by inhibition of high affinity choline uptake
농존지역 거주노인의 연령,성별,교육수준이 한국판 MMSE 점수에 미치는 영향에 관한 연구
우종인,이정희,홍진표 대한신경정신의학회 1996 신경정신의학 Vol.35 No.1
In order to observe the sociodemographic effects on Mini-Mental State Examination-Korean version(MMSE-K), MMSE-K was administered to the residents aged 65 and older in Yonchon county, Kyungki-Do. Following results were found : 1) Forty percent of the variance in MMSE-K scores was accounted by educatonal level, age and sex. 2) Educational levels were closely correlated with MMSE-K scores(r=0.49). The group of elementary school graduates and over scored higher scores of 5-6 points and 1- 3 points higher in comparison to the noneducated group and the elementary school failure group, respectively. 3) Men received higher MMSE-K scores than women, especially in the noneducated group and the elementary school failure group. In conclusion, readjustments of MMSE-K scores for demographic variables, especially for educational level, are necessary in order to use the MMSE-K as a screening measure for dementia.
조경배식에 있어 지피식생조성에 관한 연구 -몽촌토성을 중심으로-
우종서,이경재 한국조경학회 1991 韓國造景學會誌 Vol.18 No.4
This research investigated soil, plants, insects and birds in the Mongchon Earth Fort, establishing the 11 plots, according to planting treatment, in order to present management method for ecological stability of species in the ground covering plots. The results of analysizing the investigated data summarize as follows. 1. In the ground covering plots without upper layer, the density and coverage of middle and low layer in the natural plots were higher than those in the artificial plots. 2. In the ground covering plots without upper layer, the density and coverage of low layer were higher than those in the artificial, while the density and coverage of herb layer in the natural plots were lower. 3. Whether there was upper layer or not, the total species diversity and enenness of the ground covering community in the natural plot without artificial treatment and natural treatment plot were higher than those ground covering. 4. In the ground covering plots with upper layer, the species diversity of ground covering in the plots without artificial treatment is high, while the species diversity in the plots with natural treatment caused the secondary succession is higher than that of the natural plot. 5. In the ground covering plots without upper layer, the species diversity in the plots with artificial management was higher than that of natural plots, while the evenness in the plots with artificial management was lower. 6. In the ground covering plots with upper layer the species diversity of insect in the plot of natural state was higher than that of insect in the plots with artifical treatment. 7. Synthetically, in the area with upper layer the species diversity of the ground covering community in the natural plot was high, while in the area without upper layer, the species diversity of it in the plots with artificial treatment was high. The insect turned up frequently in the plots of high species diversity of the ground covering, so the bird did in the plots of high species diversity of the ground covering and insects.