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      • KCI등재

        운동강도와 지속시간에 따른 트레드밀 운동이 비만 쥐의 심장근 내 항산화에 미치는 영향

        김명희,김용억,윤창륙,유지원,안종모,Kim, Myung-Hee,Kim, Young-Eok,Yoon, Chang-Lyuk,Ryu, Ji-Won,Ahn, Jong-Mo 대한안면통증구강내과학회 2013 Journal of Oral Medicine and Pain Vol.38 No.1

        트레드밀 운동이 비만 쥐의 심장근 내 항산화에 어떠한 영향을 주는지 알아보고자 흰쥐에 6주 동안 고지방 식이로 비만을 유발시킨 뒤 운동강도와 적용시간을 달리하여 트레드밀을 3주 동안 적용하였으며, 체중변화, 혈중지질성분, 조직학적 변화, 심장근 내 항산화 효소와 MCP-1(monocyte chemoattractant protein-1) 등의 변화를 연구하였다. 4주령 Sprague Dawley계 수컷 흰쥐 32마리를 사용하여 각각 일반사료를 섭취한 정상군 (normal), 비만 대조군 (control), 비만 쥐에게 고강도 분할운동을 적용한 실험군 I(Experimental I), 비만 쥐에게 중강도 지구력 운동을 적용한 실험군 II (Experimental II)로 나누었다. 실험 결과 첫째, 체중변화는 고강도 분할 운동을 적용한 실험군 I과 중강도 지구력 운동을 적용한 실험군 II는 대조군에 비해 유의한 감소가 있었다 (p<0.001). 특히, 운동을 적용한 1주에서 3주까지 유의한 차이가 있었다. 둘째, 혈중지질성분 수치는 고강도 분할 운동을 적용한 실험군 I과 중강도 지구력 운동을 적용한 실험군 II는 대조군에 비해 총콜레스테롤, 중성지방, 저밀도 지단백질의 유의한 감소, 고밀도 지단백질에서는 유의한 증가가 있었다 (p<0.001). 셋째, 심장근의 조직학적 소견은 심장근에서 아교질 형성과 평활근 섬유의 정렬 상태와 밀집도, 심장근 세포크기가 중강도 지구력 운동 적용한 실험군 II에서 정상군과 비슷한 형태인 근육들이 잘 밀집해 있는 것을 볼 수 있었다. 또한, 섬유아세포, 염증세포들의 침윤 등이 고지방 식이 유발 쥐인 대조군과 고강도 분할 운동을 적용한 실험군 I에서 가장 심하였으며, 중강도 지구력 운동을 적용한 실험군 II는 대조군에 비해 섬유아세포, 염증세포들의 침윤 등이 현저히 감소하였다. 넷째, 심장근의 항산화 효소 SOD(superoxide dismutase), CAT(catalase), GPx(glutathione peroxidase) 수치는 중강도 지구력 운동을 적용한 실험군 II와 고강도 분할 운동을 적용한 실험군 I에서 모두 유의한 증가가 있었다 (p<0.001). 다섯째, 심장근의 항산화 단백질 MCP-1 발현 수치는 고강도 분할 운동을 적용한 실험군 I과 중강도 지구력 운동을 적용한 실험군 II 모두에서 감소가 있었으며 (p<0.01), 특히, 중강도 지구력 운동을 적용한 실험군 II에서는 유의한 감소가 있었다 (p<0.001). 따라서, 중강도 지구력 운동은 고지방 식이로 유발된 비만 쥐의 심장근 내 항산화에 영향을 주어 비만 개선과 산화적 스트레스에 의한 심장근육 손상 감소 등에 효과적인 것으로 나타났다. The aims of this study was to observed an effect of antioxidative in cardiac muscle of high fat diet induced obesity rat by treadmill exercise with intensity and time. Thirty-two Sprauge-Dawley rats which were divided into four group. Normal, Control(high fat diet induced obesity rat), Experimental I(high intensity intermittent exercise in high fat diet induced obesity rat), Experimental II(moderate intensity endurance exercise in high fat diet induced obesity rat). The results of this study were as follows: 1. In change of body weight, the outcome of each group significantly difference compared with control. Also, 1 to 3 weeks significantly different compared with pre valu experimental I and II(p<0.001). 2. In change of lipid profile, the outcome of each group significantly difference compared with control(p<0.001). Difference between experimental I and II is not significantly. 3. In change of antioxidative enzymes(SOD, CAT, GPx) in myocardium, there are significant difference between control and experimental II, and also between control and experimental I(p<0.001). 4. In change of antioxidative protein MCR-1, the outcome of each group significantly difference compared with control(p<0.01). Experimental II was most significantly difference than the other group(p<0.001). The above results suggest that treadmill exercise effectively reduced in fat. It would be considered that moderate intensity endurance exercise has an effects on improved antioxidative enzyme in cardiac muscle of high fat diet induced obesity rat.

      • CORBA 환경에서 실시간 응용을 자원을 위한 분산 객체그룹 플랫폼의 설계 및 구현

        김명희,이재완,주수종,Kim, Myeong-Hui,Lee, Jae-Wan,Ju, Su-Jong 한국정보처리학회 2000 정보처리논문지 Vol.7 No.4

        The applications developing in distributed object computing enviroments are faced with the difficulties for managing various lots of distributed objects. Also, because the most multimedia service, like video, audio, and so forth, must be satisfied itself with real-time constraints, the users also are feeling with necessary to apply real-time mechanisms to distributed multimedia services. The goal of this paper is to solve the problems for managing distributed objects, and to be easy to develop complex applications that can provide real-time services. To do this, we designed and implemented a real-time object group platform that can be placed between applications and CORBA. This platform is extended the existing object group model[13,14] added to the scheduler and timer object components for supporting real-time concept. We designed the components for platform by using James Rumbaugh object modeling technology that consists of object, function, and dynamic model. And then we described the detailed interfaces of the components by IDL, and implemented our real-time object group's platform using OrbixMT 22 which is the IONA Technologies' ORB product. Finally, we showed the execution procedures of the schduler object of each components in a real-time object group platform.

      • KCI등재후보

        Dehydrocoupling of Bis(silyl)alkylbenzenes to Network Polysilanes, Catalyzed by Group 4 Metallocene Combination

        김명희,이준,무수용,김종현,고영춘,우희권,Kim, Myoung-Hee,Lee, Jun,Moo, Soo-Yong,Kim, Jong-Hyun,Ko, Young Chun,Woo, Hee-Gweon The Basic Science Institute Chosun University 2010 조선자연과학논문집 Vol.3 No.1

        Bis(silyl)alkylbenzenes such as bis(1-sila-sec-butyl)benzene (1) and 2-phenyl-1,3-disilapropane (2) were synthesized in high yields by the reduction of the corresponding chlorosilanes with $LiAlH_4$ in diethyl ether. The dehydrocoupling of 1 and 2 was performed using group IV metallocene complexes generated in situ from $Cp_2MCl_2$/Red-Al and $Cp_2MCl_2$/n-BuLi (M = Ti, Hf), producing two phases of polymers. The TGA residue yields of the insoluble polymers were in the range of 64-74%. The molecular weights of the soluble polymers produced ranged from 700 to 5000 ($M_w$ vs polystyrene using GPC) and from 500 to 900 ($M_w$ vs polystyrene using GPC). The dehydropolymerization of 1 and 2 seemed to initially produce a low-molecular-weight polymer, which then underwent an extensive cross-linking reaction of backbone Si-H bonds, leading to an insoluble network polymer.

      • Partial Purification and Properties of Invertase from Jerusalem Artichoke Tuber

        김명희,전덕영,Kim, Myung-Hee,Jhon, Deok-Young 생화학분자생물학회 1988 한국생화학회지 Vol.21 No.4

        돼지감자에서 sucrose의 가수분해를 촉매하는 invertase(EC 3.2.1.26)를 71배로 부분 정제하였다. 전기 영동을 한 결과 순수효소는 한개의 polypeptide chain으로 구성되어 있었고, 그 분자량은 86,000이었다. 효소활성에 필요한 적정 pH와 적정온도는 각각 pH 7.0, $40^{\circ}C$였다. 이 효소는 sucrose에 대하여 높은 가수분해 활성도를 보였으나, inulin에 대해서는 전혀 작용하지 않았다. Sucrose에 대한 이 효소의 Km값은 24.7 mM이었다. The invertase (EC 3.2.1.26), which catalyzes the hydrolysis of sucrose, has been purified 71-fold from Jerusalem artichoke tuber. Electrophoresis showed that the native enzyme is consisted of single polypeptide chain of 86,000 daltons. Optimum pH and temperature for the enzyme action were pH 7.0 and $40^{\circ}C$, respectively. The enzyme exhibited high hydrolytic activity to sucrose, but no activity on inulin. The enzyme had an apparent Km of 24.7 mM for sucrose.

      • KCI등재후보

        Dehydrogenative Polymerization of Hydrosilanes to Silicon Polymers

        김명희,이준,모수용,김종현,우희권,Kim, Myoung-Hee,Lee, Jun,Mo, Soo-Yong,Kim, Jong-Hyun,Woo, Hee-Gweon The Basic Science Institute Chosun University 2010 조선자연과학논문집 Vol.3 No.2

        Hydrosilanes possessing reactive Si-H bond are used in synthesizing various types of polysilanes by dehydrocoupling under the influence of various organometallic promoters. Catalytic Si-Si/Si-O coupling of hydrosilanes with hydrosilanes, alcohols, and lactones to silicon-based polymers are described in this article as selective examples of our recent research developments. These silicon-containing polymers can be used as a precursor to prepare useful functional materials for fabricating electronic devices.

      • KCI등재

        비실험자료를 이용한 연구에서 인과적 추론의 강화: 성향점수와 도구변수 방법의 적용

        김명희,도영경,Kim, Myoung-Hee,Do, Young-Kyung 대한예방의학회 2007 Journal of Preventive Medicine and Public Health Vol.40 No.6

        Objectives : This study attempts to show how studies using non-experimental data can strengthen causal inferences by applying propensity score and instrumental variable methods based on the counterfactual framework. For illustrative purposes, we examine the effect of having private health insurance on the probability of experiencing at least one hospital admission in the previous year. Methods : Using data from the 4th wave of the Korea Labor and Income Panel Study, we compared the results obtained using propensity score and instrumental variable methods with those from conventional logistic and linear regression models, respectively. Results : While conventional multiple regression analyses fail to identify the effect, the results estimated using propensity score and instrumental variable methods suggest that having private health insurance has positive and statistically significant effects on hospital admission. Conclusions : This study demonstrates that propensity score and instrumental variable methods provide potentially useful alternatives to conventional regression approaches in making causal inferences using non-experimental data.

      • KCI등재

        요양병원 입원 노인의 우울 관련요인

        김명희,김윤경,Kim, Myung-Hee,Kim, Yun-Kyung 대한예방한의학회 2012 대한예방한의학회지 Vol.16 No.3

        Objective : The study was designed to identify the factors related to depression of the elderly patients in geriatric hospital. Method : The subjects consisted of 198 old people who admitted in three geriatric hospital located in Daegu City. The Data was collected through interview with questionnaire from July 16 to August 16, 2012. Results : The general characteristics which significantly affected depression was perceived health status(F=18.158, p=.000). There was a slightly negative correlation between activity daily living & depression(r=-.378,p=.000) and strongly negative correlation between life satisfaction & depression(r=-.573, p=.000). Among the factors related to depression of the subjects, life satisfaction had highest expanatory power of 32.8%. Conclusion : The finding of this study provide useful information for constructing an intervention program and care for the elderly patients in geriatric hospital with depression.

      • KCI등재

        입원환자의 의료보장형태에 따른 가정간호 이용의사에 대한 연구

        김명희,조은지,박형숙,강인순,Kim, Myung-Hee,Cho, Eun-Ji,Park, Hyoung-Sook,Kang, In-Soon 한국가정간호학회 2005 가정간호학회지 Vol.12 No.2

        Purpose: This study is a descriptive research which is designed to investigate hospitalized patients' intent to use home care nursing according to the types of medical security. Method: This researcher surveyed 236 patients who were hospitalized at B medical center located in Busan,. Data were collected from Sep. 1 to Nov. 30, 2005 using a questionnaire survey, medical records, face-to-face interviews and observations. Collected data were analyzed in terms of frequency, percentage, mean and standard deviation through $x^2$-test and t-test under SPSS WIN 10.0 Program. Result: Out of the total subjects, 59.3% were medical aid clients and the remaining 40.7%, health insurance ones. The hospitalized period and frequency of the former group were 38.0 days and 4.0 times, respectively, while those of the latter, 37.7 and 3.4. When home care nursing clients were examined using a given classification device, it was found that out of the total 236 subjects, 205(86.9%) were needed to receive home care nursing, 121, medical aid and the other 84, health insurance. 24.0% of medical aid clients heard about home care nursing ever before, lower than 39.3% of health insurance clients. 43.8% of the former clients said cost for home care nursing was high while, 47.6% of the latter group responded expense for the nursing intervention was low. 30.6% of medical aid clients had intent to use home care nursing, lower than 47.6% of health insurance clients. 71.7% of those patients whose monthly income was 99 million won or below had no intent to use home care nursing, higher than 62.5% of those who were 100 million or over in monthly income(p<.05). 76.4% of those clients who had no nursing provider intented to use home care nursing, higher than those who had nursing provider(p<.05). Concerning contents of home care nursing, 85.1% of medical aid clients needed education, training and counseling while, 77.4% of health insurance aids wanted medication and injection. Conclusion: In conclusion, the use of home care nursing by medical aid clients should be promoted through improving conditions for home care nursing in terms of expense, family and residence and making public relations about activities and contents of the home care nursing.

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