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Yan, Bing Chun,Park, Joon Ha,Kim, Sung Koo,Choi, Jung Hoon,Lee, Choong Hyun,Yoo, Ki-Yeon,Kwon, Young-Geun,Kim, Young-Myeong,Kim, Jong-Dai,Won, Moo-Ho Kluwer Academic/Plenum Publishers 2012 Cellular and molecular neurobiology Vol.32 No.8
<P>In the present study, we investigated neuronal death/damage in the gerbil hippocampal CA1 region (CA1) and compared changes in some trophic factors, such as brain-derived neurotrophic factor (BDNF), glial cell line-derived neurotrophic factor (GDNF) and vascular endothelial growth factor (VEGF), in the CA1 between the adult and young gerbils after 5 min of transient cerebral ischemia. Most of pyramidal neurons (89%) were damaged 4 days after ischemia-reperfusion (I-R) in the adult; however, in the young, about 59% of pyramidal neurons were damaged 7 days after I-R. The immunoreactivity and levels of BDNF and VEGF, not GDNF, in the CA1 of the normal young were lower than those in the normal adult. Four days after I-R in the adult group, the immunoreactivity and levels of BDNF and VEGF were distinctively decreased, and the immunoreactivity and level of GDNF were increased. However, in the young group, all of their immunoreactivities and levels were much higher than those in the normal young group. From 7 days after I-R, all the immunoreactivities and levels were apparently decreased compared to those of the normal adult and young. In brief, we confirmed our recent finding: more delayed and less neuronal death occurred in the young following I-R, and we newly found that the immunoreactivities of trophic factors, such as BDNF, GDNF, and VEGF, in the stratum pyramidale of the CA1 in the young gerbil were much higher than those in the adult gerbil 4 days after transient cerebral ischemia.</P>
영골(靈骨).강압혈(降壓穴) 자극(刺鍼)이 혈압(血壓)에 미치는 영향(影向)
임영남,심성용,한지완,고호연,박종형,한양희,전찬용,김동우,Yim, Young-Nam,Sim, Sung-Yong,Han, Ji-Wan,Ko, Ho-Yeon,Park, Chong-Hyeong,Han, Yang-Hee,Chun, Chan-Yong,Kim, Dong-Woo 대한한방내과학회 2004 大韓韓方內科學會誌 Vol.25 No.2
Objective : The purpose of this study is to evaluate the clinical effect of the non-pharmacological anti-hypertension method, acupuncture, for hypertensive patients. Methods : 26 patients diagnosed with hypertension were each treated by one of three methods: an anti-hypertension drug(adalat soft capsule), venepuncture, and acupuncture. In cases of rising blood pressure, patients were treated by their one of the three methods, and blood pressure was measured at regular intervals. Result : As for the group of acupuncture treated patients on Young-gol(ling-gu) and Gang-ap-hyul(jiang-ya-xue), readings dropped 18.0mmHg in systolic blood pressure and 6.50mmHg in diastolic blood pressure. This was a greater effect than that seen in the venepuncture treated patients. Blood pressure checked one hour after acupuncture treatment showed a greater difference than blood pressure checked after thirty minutes. Conclusion : Safe reductions in blood pressure were observed through the non-pharmacological method of acupuncture on Young-gol(ling-gu) and Gang-ap-hyul(Jiang-ya-xue).
김영수,오성훈,박형천,정태섭 대한신경외과학회 1988 Journal of Korean neurosurgical society Vol.17 No.5
The bony spur formation without degenerative change in the lumbar spines in the young age group is quite interesting and is not uncommon. This bony spur is different from the degenerative spur in the old age group in shape and mechanism of formation. The authors analyzed 25 patients below 29 years old with such posterior lumbar bony spur. We concluded that posterioly lacated Schmorl's node is main cause of the bony pour in young age group at lumbar region.
시ㆍ공간 엔트로피 기반 3D-DCT 프레임간 동영상 부호화
박동춘,김태효,이영철 慶南大學校 附設 工業技術硏究所 1999 硏究論文集 Vol.17 No.-
본 논문은 동영상에서 프레임 간의 압축률을 높이기 위해 3D-DCT에 의한 확률 엔트로피(3D-PEDCT : Probability Entropy in three dimension DCT) 알고리즘을 제안하였다. 실험결과, 3D-PEDCT는 Miss America와 Sales Man의 경우 각각 PSNR이 36.23dB와 34.57dB의 해상도를 보였고, 압축률은 0.18~0.2 bit/pixel 정도로 나타났다. 이것은 기존의 알고리즘인 H.261과 H.261보다 2~3dB 정도 우수하면서 압축률도 0.08~0.122 bit/pixel 정도로 개선되었다. In this paper, a probability entropy algorithm based on the 3D-DCT(3D-PEDCT) is proposed to decrease the bit rate of the interframe for moving image. In the result, the PSNR of the Miss America was 36.23dB and the PSNR of the Sales Man was 34.67dB using 3D-PEDCT. These compression ratios using 3D-PEDCT were about 0.18-0.2 bit/pixel. This algorithm was improved about 2~3dB compared with other algorithm such as H.261 and H.263, and the compression ratios were improved about 0.08∼0.122bit/pixel.
우리나라 優良삼나무集團에 對한 生態遺傳擧的 硏究 : Ⅱ. 同位酵素의 遣傳變異 Ⅱ. Isozyme Variation
朴龍求,全瑛字 COLLEGE OF AGRICULTURE KYUNGPOOK NATIONAL UNIVERSI 1984 慶北大農學誌 Vol.2 No.-
In order to find out the genetic differentiation of 18 excellent man-made populations of Cryplomeria japonica in Korea, the variation of peroxidase patterns in foliage were analyzed by the Weighted Variable Group Method (WVGM). The results obtained were as follows: 1. The mean number of isoperoxidase bands was 5.7 - 9.0, and revealed high variation not only between all populations, but also within six populations; Nonsan, Jangseong, Songkwang, Sunam, Haenam, and Goheung. 2. The analysis of variance of mean number of isoperoxidase bands showed highly significant difference among 18 populations. 3. There are no variation on the zymograms, and those showed exactly same patterns on 27 sample trees from Daeduk population. 4. The result of WVGM could be grouped into 4 clusters from all 18 populations. Group Ⅰ included six populations; Geoje, Hadong, Jeonju, Seogwi, Nonsan, and Songkwang. Group Ⅱ did four populations; Sunam, Yeongam, Gwangju, and Busan, Group Ⅲ included seven populations; Haenam, Gwangyang, Namywen, Jangseong, Gangjin, Goheung, and Jinhae, Group Ⅳ included only one, Daeduk population.
일산화탄소 폭로후 고압산소 재폭로시 흰쥐 신장 및 심장의 SOD 활성 변동에 관한 연구
전영희,백두진,황세진,박준숙,정호삼 한양대학교 의과대학 1997 한양의대 학술지 Vol.17 No.1
Carbon monoxide is generated from the incomplete combustion of carbon-containing materials. Carbon monoxide cause muscle necrosis leading to myoglobinuria and acute renal failure. The hyperbaric oxygen exposure is increased production of active free radicals. Free radicals which promoted peroxidation of unsaturated fatty acids may destroy essential cellular components and itself cytotoxic materials. Superoxide dismutase, one of the protective mechanisms against tissue damage, catalyzed the dismutation of superoxide anion to less toxic product. The author performs the present study to investigate on Mn-SOD and Cu, Zn-SOD immunoreactivities in kidney and heart carbon monoxide (CO) and hyperbaric oxygen (HBO) exposure. The animals were divided CO exposure group, air release after CO exposure group, HBO exposure group and, CO and HBO exposure group. The specimen were sectioned in 16㎛ with cryostate. The Mn-SOD and CuZn-SOD immunohistochemistry was performed in renal corpuscle, proximal and distal convoluted tubules of kidney and, in sarcoplasm and sarcolemma of heart muscle. The results obtained were as follows: 1. The immunoreactivity of Mn-SOD were increased in renal corpuscles and distal convoluted tubules, were similar to control group in proximal convoluted tubules. 2. The immunoreactivity of Cu, Zn-SOD were increased than that of control group in renal corpuscles and distal convoluted tubules, were same that of the control group in proximal convouted tubules. 3. The immunoreactivity of Mn-SOD were increased at all experimental group of sarcoplasms of heart muscle. 4. The immunoreactivity of Cu,Zn-SOD were increased than that of control group in sarcolemma of heart muscle. These results suggest that the immunoreactivity of SOD after CO or HBO exposure is greatly increased in kidney and heart.
殺蟲性 O,O-Diethylphenylphosphate 誘導體의 形態와 反應性에 關한 分子軌道論的 硏究
朴勝熙,成洛道,明平根,全容求,李天培 충남대학교 약학대학 의약품개발연구소 1985 藥學論文集 Vol.1 No.-
Molecular orbital theoretical study on the stability of conformations and chemical reactivity of 0,0-diethyphenylphosphate derivatives were carried out by EHT and CNDO/2 molecular orbital calculation method. The results shown that the dipole moment(μ) and total energies of the θ=90° conformer were μ=3.185D & E_t=-162.6479(au) and also that of the θ=0° conformer were μ=5.596D & E_t=-162.4013(au), respectively. Therefore, the values of μ & E_t of the θ=90° conformer were much smaller than that of the θ=0° conformer. The form with angle of rotation θ=90° of phenyl ring was shown to be most stable and this was interpreted in terms of electrostatic and steric effect. O,O-diethylphenylphosphate derivatives are predicted to increase both charge and orbital controlled SN_2 reactivity of the electron withdrawing substituent reduces the HOMO & LUMO energy, while the electron withdrawing substituent due to increase in positive charge of phosphorus atom of phosphate molecule.