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      • KCI등재후보

        중장년 성인교정환자의 구강상태 및 치료양태에 관한 연구

        이현정(Hyeon-Jung Lee),김진영(Jin-Young Kim),조진형(Jin-Hyoung Cho),황현식(Hyeon-Shik Hwang) 대한치과의사협회 2010 대한치과의사협회지 Vol.48 No.5

        Orthodontic treatment for middle-aged patients has become more commonplace with various reasons including improved socioeconomic status. Understanding of oral status and treatment modalities of middle-aged patients is mandatory for accurate diagnosis and proper treatment planning. This study investigated 100 consecutive patients aged 40s and 50s and 100 aged 20s who had been examined and diagnosed at the Department of Orthodontics, Chonnam National University Dental Hospital. The results were obtained as follows; 1. Gender distribution showed female outnumbered male patients in young-aged adult patients, but middle-aged patients showed similar male and female distribution. 2. The major concern seeking orthodontic treatment was esthetics not only in young-aged but also in middle-aged adult patients, and a number of middle-aged patients were concerned about oral health as well. 3. Considerable number of middle-aged patients were referred by other dental specialties while young-aged adult patients were more self-motivated for orthodontic treatment. 4. Middle-aged adult patients had more missing teeth and periodontal disease than young-aged adults. 5. The most frequently-observed problem was dental spacing in middle-aged patients while dental crowding in young-aged adult patients. Middle-aged patients showed higher prevalence of deep overbite and overjet while most of young-aged adults presented opposite direction of problem in overbite and overjet. 6. Limited orthodontic treatment was required rather than comprehensive treatment in middle-aged patients, and the most common tooth moving area was anterior part of dentition in case of limited treatment. Need of interdisciplinary therapy with other dental specialties was more common in middle-aged patients. 7. Intervention of specific technique such as invisible TP, passive bracketing, passive wire bonding, and lingual orthodontics was more required in middle-aged patients. Considering that middle-aged patients have different characteristics than young-aged adults, the results of the present study suggest that different treatment modalities are required in middle-aged orthodontic patients in order to manage them properly and efficiently.

      • KCI등재후보

        참당귀의 흰쥐 4-Vessel Occlusion 전뇌허혈에 대한 신경방어효과

        김영옥,하니나,부영민,박선영,박주영,유영법,신준식,안덕균,김호철 대한본초학회 2002 大韓本草學會誌 Vol.17 No.2

        Objectives : Angelicae Radix, the root of Angelica gigas N_AKAI (Umbelliferae) , which has been used to nourish the blood(補血), regulate menstruation(調經), relieve pain and promote bowel movements(崩漏) and activate blood circulation for the treatment of fatigue, headache, constipation and blood troubles in traditional Korean medicine. It's flavour and channel tropism is sweet(甘), pungent(辛), warm(溫), acting on the lung, heart and spleen(肺, 心, 脾). The purpose of study we report here was to determine the neuroprotective effect of Angelica gigas on global ischemia induced by 4-vessel occlusion in Wistar rats. Methods : Angelica gigas extracts was lyphilized after extraction with 85% methanol. We induced 4-VO for 10 minutes and reperfused again. The number of CA1 pyramidal neurons were counted after 7 days of reperfusion under the cresyl violet staining. Results : The results showed that Angelica gigas had significantly neuroprotective effects (100, 250 and 500mg/kg of AR extracts, p<0.001) compared with control group. Each neuroprotective ratio was about 66.1, 79.3 and 78.6% respectively. Immunohistochemical data partially explained the protective effects of Angelica gigas via attenuation of COX-2 induction in hippocampus. Conclusion : Angelica gigas gas neuroprotective effects on the global ischemia induced by 4-vessel occlusion in Wistar rats and the attenuation of COX-2 induction is thought to be its possible mechanism.

      • 比較憲法에 관한 硏究 : 民主主義國家의 憲法과 共産主義國家의 憲法을 中心으로

        金水暎,黃革周,權光植,吳再煥,崔聖俊,金益鉉,金永休,王任東 朝鮮大學校 法政大學 1977 法政大論文集 Vol.4 No.-

        This paper aims to make clear the fundamental differences between the constitutions of two political systems, constitutional democracy and communism. (1) Fundamental Human Rights The recognition and the protection of fundamental liberties are the essences of the political system of constitutional democacy. The reality of individual liberties is the only reliable criterion that differentiates the two political systems, since the institutional apparatus of both government, assemblies, elections, parties, bureaucracies have become stereotyped to the point of identity. Recognition or nonrecognition of fundemental guaranties are closely related to the ideological telos of either system. In the constitutional democracy they crystallize the supreme values of human self-realization and dignity. In the communist states they are denied legitimacy not only because they may function as foci of opposition against monolithic power but also because they could obstruct the ideology of economic planning under collectivism. The idelolgical foundation and functional purpose of classical fundamentalism underwent a fa -reaching transformation in the Marxian society. The Russian Revolution preaches and practices the primacy of the collectivity over the individual. Instesd of being "inalienable" interpreted as obligations of the state toward the laboring masses. The attitude of Marxism in the U.S.S.R. and the so-called "People's Democracies" toward fundamental liberties is altogether different. All constitutions in the Soviet orbit contain elaborate statements on fundamental rights of the citizens, characteristically coupled with provisions concerning their duties toword the state and the community. Civil liberties in the classical sense, which the constitution of communist states merely summarizes, are overshadowed by the new social and economic rights. The guaranty of the civil rights proper is hedged in by the rubber clause that they are guaranteed " in conformity with the interests of the working class" and "in order to strenghthen the socialist system". Especially political rights of the suffrage are converted into compulsory mass participation in the political process directed by the party hierarchy. And its single party (communist party)was the straight negation of all political liberty. (2) Patterns of Governament In the modern democratic-constitutional state the essence of the power process consists in the attempt to establish an equilibrium between the various competitive plural forces within in state society, with due regard to the free unfolding of the human personality. In communist state, social control and political power are monopolized by a single power holder, subordinating the individual to the ideological requirements of the group domination the state. The basic difference between the two political systema conists in whether, in the various stages of the governmental process, political power, is distributed among and shared by several independent power holders or whether political power is concentrated in and monoploized by a single power holder, be it an individual person, and assembly, or a party. Assembly government system revived in the Stalin constitution of 1936 in the U.S.S.R. from where it spread, after the Second World War, to all satellite states, as well as East Germany, Red China, North Korea. No communist state fails to conform to this standard pattern. Assembly government, by its own biological laws. easily transforms itself into a regime in which a single power holder exercises the monopoly of political power. This may well be the intrinsic reason for the communist preference. By necessity the communist state is a plice state. Another indispensable instrument of social control is the single party. The governmental techniques of a communist regime are necessarily authoritarian. But the regime does much more than exclude the power addressees from their legitimate share in the formation of the will of the state. It attempts to mold the private life, the soul, the spirit and the mores of the citizens to a dominant ideology that the various instrumentalities of the power process force on the non-conformists.

      • SCIESCOPUSKCI등재
      • KCI등재후보

        Lidocaine, Thrombin, Epinephrine 의 항균효과

        김진우,이동건,전혜선,김승준,김석찬,안중현,김치홍,권순석,김영균,김관형,문화식,신완식,송정섭,박성학 대한감염학회 2005 감염과 화학요법 Vol.37 No.6

        목적 : 기관지내시경 검사에서 흔히 사용되는 국소마취제인 lidocaine과 내시경시 지혈목적으로 사용되는 thrombin과 epinephrine이 각종 균주에 미치는 항균효과에 대해 알아보고자 하였다. 재료 및 방법 : 균주는 가톨릭대학교 성모병원에서 2004년 3월부터 2004년 9월까지 임상검체 에서 동정된 S. aureus, S. pneumoniae, K. pneumoniae, P. aeruginosa 각각 42, 42, 42, 43주를 대상으로 하였다. Lidocaine, thrombin, epinephrine 감수성 검사는 National Committee for Clinical Laboratory Standards (NCCLS, 2002)의 기준에 따랐다. 결과 : Lidocaine은 S. aureus, S. pneumoniae, P. aeruginosa에서 MIC_(50), MIC_(90) 모두 20,000 ㎍/mL 이었다. K. pneumoniae는 각각 10,000 ㎍/mL이었다. Thrombin은 S. aureus와 P. aeruginosa에서 MIC50 500 lU/mL 과 MIC_(90) 500 IU/mL 이상이었고, K. pneumoniae에서는 MIC_(50)과 MIC_(90)이 모두 500 lU/mL이상이었으나 S. pneumoniae에서는 MIC_(50)과 MIC_(90)은 125 IU/mL이었다. Epinephrine은 K. pneumoniae, S. pneumoniae에 대한 MIC_(50), MIC_(90)가 모두 >500 ㎍/mL이었고, S. aureus와 P. aeruginosa에 대한 MIC_(50), MIC_(90)가 모두 500 ㎍/mL이었다. 결론 : 기관지 내시경 검사에서 흔히 쓰이는 lidocaine, thrombin, epinephrine 등의 약제들이 호흡기 질환의 흔한 병원균인 S. aureus, S. pneumoniae, K. pneumoniae, P. aeruginosa 균주들에 대해 항균 효과가 있을 수 있어 세균배양검사에 영향을 미칠 수 있겠다. Background : We performed this stody to find out about antimicrobial effect of lidocaine which is commonly used local anesthetic, and thrombin and epinephrine used for hemostasis during bronchoscopic procedures. Materials and Methods : The microorganisms that were cultured from specimens obtained during bronchoscopy were Staphylococcus aureus (n=42), Streptococcus pneumoniae (n=42), Klebsiella pneumoniae (n=42), and Pseudomonas aeruginosa (n=43) collected from St. Mary's Hospital, from March to Sep 2004 were used for susceptibity testing. Susceptibility to lidocaine, thrombin, and epinephrine were tested according to the National Committee for Clinical Laboratory Standards. Result : MIC_(50) and MIC_(90) of lidocaine for S. aureus, S. pneumoniae, P. aeruginosa were all 20,000 ㎍/mL and that for K. pneumoniae were 10,000 ㎍/mL. MIC_(50) and MIC_(90) of thrombin for both S. aureus and P. aeruginosa was 500 IU/mL and above 500 IU/mL, respectively; that for K. pneumoniae were all above 500 IU/mL and for S. pneumoniae they were 125 IU/mL, MIC_(50) and MIC_(90) of epinephrine for K. pneumoniae and S. pneumoniae were above 500 ㎍/mL; that for S. aureus and P. aeruginosa were 500 ㎍/mL. Conclusion : We observed possible antimicrobial effect of lidocaine, thrombin, and epinephrine in vitro against pathogens such as S. aureus, S. pneumoniae, K. pneumoniae, P. aeruginosa, which are common respiratory microorganisms. The use of these agants could affect the result of bacterial culture.

      • KCI등재
      • 철광석 Brand 별 수소환원 반응속도

        김영홍,이광학,김영진,서도수,이재운,김흥식 울산대학교 1999 공학연구논문집 Vol.30 No.2

        반응온도가 증가할수록 Brand별 철광석의 환원율은 증가하였으며 일정반응온도에서 원광석형태인 Romeral 보다 펠렛형태인 CVRD,IOC 및 ALG 시편의 환원율이 더 높음을 알수 있었고 펠레시편 중 IOC가 타 시편에 비해 환원율이 가장 큼을 알 수 있었다. 수소가스에 의한 원광석 및 펠렛시편의 환원반응에서 전반응속도는 계면화학반응에 의해 율속됨을 알 수 있었으며, 활성화에너지값은 Romeral, CVRD, IOC 및 ALG의 경우 각각 약 4.8, 7.7, 4.5 및 5.3kcal/mol이었다. 이들 활성화에너지값으로부터 수소가스에 의한 환원반응은 펠렛형인 IOC가 가장 우수함을 알 수 있었다. In order to get an fundamental data to select a suitable ore brand for hydrogen reduction, the reaction kinetics of hydrogen for ore brands was investigated. Four kinds of ore brands such as Romeral ore, CVRD, IOC,ALG pellet were selected for this experiment. It was observed that the reduction ratio of pellets was higher than ore and IOC pellet showed the highest in comparing with other pellets. The kinetics data was fitted to [1-(1-R)1/3] = kt for surface reaction control. The activation energy for the reduction of Romeral, CVRD, IOC and ALG were 4.8, 7.7, 4.5 and 5.3 kcal/mol respectively. It was shown that the overall reduction rate was controlled by surface reaction. And also, we can get result that IOC was the most suitable ore for the reduction with hydrogen gas among the specimens

      • SCIESCOPUSKCI등재
      • KCI등재

        유산양 유즙으로부터 분리된 세균의 분포 및 항균제 감수성 검사

        김혜라 ( Hye Ra Kim1 ),정지영 ( Ji Young Jung ),김선득 ( Seon Deuk Kim ),박준영 ( Jun Young Park ),조인영 ( In Young Cho ),신성식 ( Sung Shik Shin ),손창호 ( Chang Ho Son ),오기석 ( Ki Seok Ok ),허태영 ( Tai Young Hur ),정영훈 ( Y 한국동물위생학회 2012 韓國家畜衛生學會誌 Vol.35 No.4

        The aim of this study was to isolate microorganisms from half milk samples of dairy goats by California mastitis test (CMT) during the lactation period and to further investigate the susceptibility of isolated organisms to antimicrobial drugs. From a total of 235 half milk samples with CMT scores of 2 or above from 366 dairy goats distributed throughout Jeonnam province, microorganisms were isolated from 198 (83.5%) samples either singly (99.0%) or in combination (1.0%). The most prevalent microorganism was the coagulase-negative Staphylococcus spp., (44.4%, n=88) followed by Staphylococcus aureus (24.2%, n=48), Escherichia coli (11.1%, n=22) and Streptococcus spp. (7.6%, n=15). Isolated bacteria also included Bacillus spp. (2.5%, n=5), Pseudomonas spp. (2.5%, n=5), Micrococcus spp. (1.5%, n=3), Corynebacterium spp. (1.5%, n=3), Enterococcus facium (1.0%, n=2), Morganella morganii (0.5%, n=1) and Streptococcus agalactiae (0.5%, n=1). During the summer season, a high prevalence of all micro-organisms were observed in which Staphylococcus spp. (30.8%), Escherichia coli (8.6%), and Streptococcus spp. (5.6%) were among the most prevalent bacteria isolated. Staphylococcus spp. was also shown to be high in the winter (21.7%). In most samples, the presence of bacterial pathogens in goat milk led to the increase in the total somatic cell count (SCC). Most of the half milk samples of dairy goats with bacterial contamination showed SCC of ≥1×10(6) cells/ml (90.4%). Minor pathogens (11.4%) were more detected from milk samples with SCC of <1×10(6) cells/ml than major pathogens (4.1%), while the major pathogens tended to be higher from samples with SCC of ≥3×10(6) cells/ml. Susceptibility of these bacteria to 12 antimicrobial agents was tested by the Kirby-Bauer disc diffusion method. Results indicated that more than 90% of bacteria isolated from CMT 2+ dairy goat half milk samples were susceptible to trimethoprim/sulfamethoxazole, amoxicillin/clavulanic, enrofloxacin and cephalothin while they were resistant to tetracycline (44.7%).

      • SCOPUSKCI등재

        단계적 온도 하강법을 이용한 췌도세포 냉동보존법

        정인경,오승훈,김병준,양태영,이병완,하창영,노정현,정재훈,민용기,이명식,이문규,김광원 대한당뇨병학회 2002 Diabetes and Metabolism Journal Vol.26 No.1

        연구배경:최근 당뇨병의 새로운 치료법으로 시도되고 있는 췌도이식은 충분한 췌도수의 확보와 췌도생존율을 높이기 위한 면역억제제 사용이 제한점이 되고 있다. 본 연구의 목적은 이식 전 충분한 췌도 수의 확보를 위해 분리한 췌도를 냉동보존하는 방법을 확립하고 냉동보존한 백서 췌도세포의 시험관내 그리고 생체내 기능을 조사하였다. 방법:분리한 백서의 췌장소도를 48시간 배양한 후 한 시험관당 췌도세포 1000개씩 나누었다. 냉동보존은 6개의 시험관에 DMSO를 첨가한 후 초 냉각(supercooling), 핵화(nucleation)단계를 거친 후 99% isopropanol과 액체질소가 들어있는 dewer를 이용하여-0.25℃/분의 냉각속도로 -40℃까지 단계적으로 얼린후-70℃ 액체질소 탱크에 보관했다. 해동은 냉동시킨 vial들을 액체 질소 태으에서 꺼내 37℃ 항온조에 담가 급격히 해동시킨 후, 원심분리하여 상층액을 제거하고 각 vial에 0.75M sucrose 용액을 가한 후, 10% fetal calf serum이 함유된 RPMI 1640 media에서 배양하였다 각각 6개의 시험관에서 해동한 췌도들을 광학현미경 및 형광현미경하에서 췌도의 모양과 생존율에 대해 조사하고 인슐린 정적반응을 알아보았다. 또한 분리한 췌도를 냉동보존하지 않고 이식한 경우를 대조군(6마리)과 생체내 기능을 비교하였다. 결과:① 냉동보존후 획득한 췌도의 수와 생존율 해동후 획득한 췌도의 수는 해동시킨 당일날이 902±21, 24시간 배양 후에는 857±16, 72시간 후에는 817±18개로 점차 감소되었다. AO/PI 염색상 각 췌도의 생존율은 냉동 전을 100으로 하였을 때 해동당일, 24시간 후, 72시간 후가 각각 60±5, 80±5, 90±5%로 해동후 3일간 배양하였을 때 냉동전의 수준으로 회복하였다. ② 냉동보존후 췌도의 포도당에 대한 정적 인슐린 분비능:냉동직후 감소된 경향을 보였으나 해동후 3일간 배양한 췌도의 인슐린 분비는 냉동전과 통계적으로 의미있는 차이가 없이 냉동보존 전의 수준으로 회복되었다. ③ 냉동보존후 췌도의 포도당에 대한 동적 인슐린 분비능:냉동보존한 췌도를 해동후 3일째의 인슐린 동적 분비능은 냉동 전과 마찬가지로 자극 인슐린의 반응의 제1기와 2기가 잘 관찰되었다. ④ 냉동보존한 췌도세포 이식 후 혈당 변화:스트렙토조토신으로 유도된 당뇨병 쥐에 췌도이식 후 혈당은 냉동보존한 췌도이식군에서 대조군에 비해 혈당의 조절효과가 더 오래 지속되었다. 결론:소동물에서 단계적 온도 하강법을 이용한 췌도세포 냉동보존법을 확립하였으며 이는 기능, 구조 및 생존율에 큰 이상을 보이지 않았으므로 장차 사람의 췌도세포 동종이식시 부족한 췌도세포수를 극복하고 면역반응을 줄일 수 있는 매우 유용한 방법이 될 것으로 판단된다. Background : Although islet transplantation has been attempted to reverse the state of diabetes, achieving a critical number of islets and modulating the immune response limit the success of islet transplantation. Cryo-preservation of islets offers many important benefits for islet transplantation by collecting islets with a wide variety of HLA phenotypes and islet MHC expression. The aims of this study was to determine the optimal conditions for cryo-preservation by using a controlled cooling method and to evaluate in vitro and in vivo functional properties of the cryo-preserved islets. Methods : Collagenase-isolated, Ficoll-purified islets were cultured for 48 hours. They were aliquoted into freezing tubes (1000 islets per tube), equilibrated with 2M dimethyl sulfoxide (DMSO) in three steps, supercooled, nucleated, and controll-cooled at rate of 0.25℃/min to - 40℃ prior to storage at - 196℃. Rapid thawing and removal of DMSO with 0.75 M sucrose preceded 48 hour of culture and the morphology, viability, glucose-induced insulin secretion, and in vivo function of rats transplanted with cryopreserved islets was reexamined. Results : ① Recovery was 90.2±0.2%, 85.7±0.1% and 81.7±0.1% immendiately after, 24 hours and 72 hours after thawing respectively. The viability was 60±5%, 80±5%, 90±5% immediately after, 24 hours and 72 hours after thawing respectively. ② The glucose-stimulated-insulin secretion (GSIS) tended to decrease immediately after thawing, but GSIS increase to the level of pre-cryopreservation 72 hours after thawing. ③ The in dynamic GSIS, the first and the second phase of insulin secretion were well preserved in islets cultured for 72 hours after thawing. ④ The cryopreserved islets were cultured for 3 days and transplanted into renal sub-capsular space of streptozotocin (STZ) induced diabetic rats. The duration of normoglycemia in the STZ-induced diabetic rats transplanted with cryopreserved islets was significantly longer than of the fresh islets. Conclusion : The optimal condition of cryopreservation using the controlled cooling method was established in rat pancreatic islets. This cryopreservation method can be a feasible approach for human islet transplantation (J Kor Diabetes Asso 26:64~74, 2002).

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