신장기능영상용 방사성의약품 Bz - MAG3 ( Benzoylmercaptoacetylglycylglycylglycine ) 의 키트화 및 체내분포

고창순(Chang Soon Koh),이명철(Myung Chul Lee),정준기(June Key Chung),이동수(Dong Soo Lee),김영주(Young Ju Kim),정재민(Jae Min Jeong),장영수(Young Soo Chang),조정혁(Jung Hyuk Cho) 대한핵의학회 1996 핵의학 분자영상 Vol.30 No.3

N/A The MAG3 is a tubular excreting radiopharmaceutical for renal image. We synthe-sized benzoyl MAG3 (Bz-MAG3) and made a kit for labeling with Tc-99m. We checked the labeling effeciency of Tc-99m labeled MAG3 and biodistribution. Labeling efficiency was checked by TLC- SG (acetonitrile/H2O=2/1). After injecting of 1 mCi of Tc-99M-MAG3 to ICR-mice, Tmax(min), T1/2(min) were obtained in the renogram. Sequencial images (30sec, 2min, 5min, 10min, 15min, 20min) of TC-99m-MAG3 were compared with those of commercial Tc-99m-DTPA (Du Pont Merck Pharmaceutical Co.) kit. 1) The Rf value of synthesized Tc-99m-MAG3 was 0.78 and labeling efficiency was 97.5±1.9% (n=10). 2) The dynamic images of the Tc-99m-MAG3 were better than those of the Tc-99m-DTPA. 3) The Tmax(min.) and T1/2(min.) of Tc-99m-MAG3 (n=10) were 1.5±0.5 (left), 1.4±0.4(right), and 4.3±1.4 (left), 4.8±2.0 (right), respectivel. The Tmax(min.) and T1/2(min.) of Tc-99m-DTPA (n=7) were 2.7±1.6 (left), 2.7±1.6 right), and 3.8±1.7 (left), 4.5±2.7 (right), respectively. The quaility of image and labeling efficiency of the synthesized Bz-MAG3 kit were excellent, that it was supposed to be used in routine clinical work.

스포츠센터 강사들의 조직공정성 인식과 조직변화저항, 혁신행동의 영향관계

서효민 ( Hyo Min Seo ),김태희 ( Tae Hee Kim ),장경로 ( Kyung Ro Chang ) 한국스포츠산업경영학회 2015 한국스포츠산업경영학회지 Vol.20 No.4

본 연구는 스포츠센터 강사들이 지각하는 조직공정성과 조직변화저항, 그리고 혁신행동의 영향관계를 규명하는데 그 목적을 두고 있다. 서울·경기 지역의 스포츠센터에 종사하는 스포츠강사 300명을 대상으로 설문조사를 실시하였으며, 총 234부의 자료가 실제분석에 사용되었다. 자료처리를 위해 SPSS 18.0 프로그램과 AMOS 18.0 프로그램을 이용하였으며, 빈도분석, 신뢰도분석, 상관관계분석, 확인적 요인분석, 그리고 구조방정식모형 분석을 실시하여 다음과 같은 연구결과를 도출하였다. 첫째, 절차공정성은 조직변화저항에 부정적인 영향을 미치는 반면에 분배공정성은 조직변화저항에 유의미한 영향을 미치지 않는 것으로 나타났다. 둘째, 분배공정성과 절차공정성 모두 혁신행동에 긍정적인 영향을 미치는 것으로 나타났다. 셋째, 조직변화저항은 혁신행동에 부정적인 영향을 미치는 것으로 나타났다. 넷째, 조직변화저항은 절차공정성과 혁신행동의 관계에서 부분매개 역할을 하는 것으로 나타났다. 이상의 연구결과를 통해 스포츠센터 강사들의 혁신행동을 증대시키기 위해서는 조직공정성의 확보와 조직변화에 대한 저항 관리가 매우 중요하다는 사실을 확인하였으며, 이는 스포츠센터 내 혁신역량 강화를 위한 중요한 이론적 근거가 될 것으로 생각된다. The purpose of this study was to investigate the relationships among perceived organizational Justice, resistance to organizational change, and Innovative behavior of sports center instructors. Specially, We examined the mediating effects of resistance to organizational change between organizational justice and innovative behavior. Total 300 questionnaires were distributed and 234 samples were used for practical analysis. The data were analyzed by frequency analysis, reliability analysis, correlation analysis, confirmatory factor analysis, and structural equation modeling using SPSS 18.0 and AMOS 18.0. The results of this study were as followers: first, procedural justice had a negative effect on resistance to organizational change, but distributive justice had no significant effect on resistance to organizational change. Seconds, distributive justice and procedural justice had a positive effect on innovative behavior. Third, resistance to organizational change had a negative effect on innovative behavior. Fourth, the relationship between procedural justice and innovative behavior was partially mediated by resistance to organizational change. In conclusion, we confirmed that enhancing the organizational justice and managing the resistance to organizational change are important for sports instructor`s innovative behavior and it can provide the theoretical basis for strengthening innovation capability of sport organization.

Causes and Predictive Factors Associated with “Diagnosis Changed” Outcomes in Patients Notified as Tuberculosis Cases in a Private Tertiary Hospital

( Byung Ju Kang ),( Kyung Wook Jo ),( Tai Sun Park ),( Jung Wan Yoo ),( Sei Won Lee ),( Chang Min Choi ),( Yeon Mok Oh ),( Sang Do Lee ),( Woo Sung Kim ),( Dong Soon Kim ),( Tae Sun Shim ) 대한결핵 및 호흡기학회 2013 Tuberculosis and Respiratory Diseases Vol.75 No.6

Background: The aim of our study was to evaluate the “diagnosis changed” rate in patients notified as tuberculosis (TB) on the Korean TB surveillance system (KTBS). Methods: A total of 1,273 patients notified as TB cases on the KTBS in one private tertiary hospital in 2011 were enrolled in the present study. Patients were classified into three groups: “diagnosis maintained”, “diagnosis changed” (initially notified as TB, but ultimately diagnosed as non-TB), and “administrative error” (notified as TB due to administrative errors). Results: Excluding 17 patients in the “administrative error” group, the “diagnosis maintained” and “diagnosis changed” groups included 1,097 (87.3%) and 159 patients (12.7%), respectively. Common causes of “diagnosis changed” were nontuberculous mycobacterial (NTM) disease (51.7%, 61/118), and pneumonia (17.8%) in cases notified as pulmonary TB, and meningitis (19.5%, 8/41) and Crohn`s disease (12.2%) in cases notified as extrapulmonary TB. Being older than 35 years of age (odds ratio [OR], 2.18) and a positive acid-fast bacilli stain (OR, 1.58) were positive predictors and a TB-related radiological finding (OR, 0.42) was a negative predictor for a “diagnosis changed” result via multivariate logistic regression analysis in pulmonary TB cases. Conclusion: Because of a high “diagnosis changed” rate in TB notifications to the KTBS, the TB incidence rate measured by the KTBS may be overestimated. Considering the worldwide trend toward increased NTM disease, the “diagnosis changed” rate may increase over time. Thus, when reporting the annual TB notification rate in Korea, the exclusion of “diagnosis changed” cases is desirable.

Long second toe: its nail and skin changes

( Geun-hwi Park ),( Woo-il Kim ),( Min-young Yang ),( Won-ku Lee ),( Tae-wook Kim ),( Sung-min Park ),( Hyun-joo Lee ),( Gun-wook Kim ),( Hoon-soo Kim ),( Hyun-chang Ko ),( Byung-soo Kim ),( Moon-bum 대한피부과학회 2018 대한피부과학회 학술발표대회집 Vol.70 No.2

Background: Nail can be affected by trauma, infection, and systematic disorders. In particular, the toe nails are exposed to the repeated and cumulative minor traumas, which usually result in thickened, splitted, and discolorated nails. Considering these, it can be inferred that the long second toe can be related to various nail and skin changes by repeated minor traumas such as friction in shoes, but the study or report on this topic hasn’t been done yet. Objectives: The purpose of this study was to introduce various nail and skin changes on long second toe. Methods: We analyzed the kinds of nail/skin changes of 50 patients with long second toe, enrolled at Pusan National University Hospitals (Busan and Yangsan) from 2013 to 2018. Results: There was no significant difference in the incidence of left and right toe and toenail, and 7 (14%) patients presented bilateral distribution. The most common nail change on long second toe was melanonychia (23, 46%), followed by subungual hematoma (15, 30%), onycholysis (2, 4%), subungual hyperkeratosis (2, 4%), onychomadesis (1, 2%), and retronychia (1, 2%). The most common skin change was corn (9, 18%), followed by paronychia (2, 4%). Twenty (20/50, 40%) patients also had other toe or toenail changes. Among them, the most common site was big toe/nail (13, 62%), and the most common change was subungual hematoma (8, 42%). Conclusion: Through this study, the dermatologists can recognize and diagnose the nail and skin changes of long second toe.

Overexpression of Insulin Degrading Enzyme could Greatly Contribute to Insulin Down-regulation Induced by Short-Term Swimming Exercise

Min Sun Kim,Jun Seo Goo,Ji Eun Kim,So Hee Nam,Sun Il Choi,Hye Ryun Lee,In Sik Hwang,Sun Bo Shim,Seung Wan Jee,Su Hae Lee,Chang Joon Bae,Jung Sik Cho,Jun Yong Cho,Dae Youn Hwang 한국실험동물학회 2011 Laboratory Animal Research Vol.27 No.1

Exercise training is highly correlated with the reduced glucose-stimulated insulin secretion (GSIS), although it enhanced insulin sensitivity, glucose uptake and glucose transporter expression to reduce severity of diabetic symptoms. This study investigated the impact of short-term swimming exercise on insulin regulation in the Goto-Kakizaki (GK) rat as a non-obese model of non-insulin-dependent diabetes mellitus. Wistar (W/S) and GK rats were trained 2 hours daily with the swimming exercise for 4 weeks, and then the changes in the metabolism of insulin and glucose were assessed. Body weight was markedly decreased in the exercised GK rats compare to their non-exercised counterpart, while W/S rats did not show any exercise-related changes. Glucose concentration was not changed by exercise, although impaired glucose tolerance was improved in GK rats 120 min after glucose injection. However, insulin concentration was decreased by swimming exercise as in the decrease of GSIS after running exercise. To identify the other cause for exercise-induced insulin down-regulation, the changes in the levels of key factors involved in insulin production (C-peptide) and clearance (insulin-degrading enzyme; IDE) were measured in W/S and GK rats. The C-peptide level was maintained while IDE expression increased markedly. Therefore, these results showed that insulin down-regulation induced by short-term swimming exercise likely attributes to enhanced insulin clearance via IDE over-expression than by altered insulin production.

용성산인(龍城山人) 이창원(李昌遠)의 사상학설(四象學說)과 체질침(體質鍼)에 대한 고찰(考察)

안창범,윤현민,허재영,권혜연,Ahn, Chang-beohm,Youn, Byuon-Min,Hea, Jae-young,Kwon, Hae-Yon 대한침구의학회 2002 대한침구의학회지 Vol.19 No.1

Objective : This study was carried out to review Chang-Won Lee's theory of Sasangand acupuncture of constitution. Methods : We have investigated Chang-Won Lee's unknown literature "Medicine of sassang "(四象醫學). Results : Constitutional acupuncture is based on the diversity of human being and medically developed the response variation to disease and acupuncture. The diversity is due to the Organ's Congenital Formation Variation based on human nature and it is categorized as four from physiology, pathology, symptoms, to therapy. Chang-Won Lee's constitutional acupuncture discriminated constitution of comparison palpations of right and left both sides. He insisted that constitution only four type(Sasang), not exist man of To-Hyoung (土形人) in "young -chu"(靈樞) and his constitutional acupuncture all used Jung-kyuck (reinforcement acupuncture method) and Seong-kyuck(reducing acupuncture method) of Sa-am(舍岩)

기후변화에 대응한 목재수급 정책과제

민경택(Min, Kyung-Taek),장철수(Chang, Cheol-Su),허경태(Hur, Gyong-Tae),이동필 한국농촌경제연구원 2011 한국농촌경제연구원 정책연구보고서 Vol.- No.-

Wood products have many attributes that make them a smart choice when it comes to climate change. First, much of the carbon absorbed by growing trees is stored in products. Using more wood also means less fossil fuel consumption. Wood is endlessly renewable, and life cycle assessment studies show that it requires substantially less energy to manufacture than other materials such as steel and concrete. Wood buildings can be easily deconstructed and reused, which means they can continue to store carbon indefinitely. And using wood from sustainably managed forests helps to ensure that forests and their carbon storage potential continue to grow, which contribute to local community economy. This report focuses on international forest policies related to climate change and their implications to Korean forestry and the forest products sector, and some policy suggestions are made. Climate change and climate change mitigation are currently hot topics at the international level. Forest is carbon sink but also regarded as carbon emitter when it is deforested and degraded. REDD(Reducing Emissions from Deforestation and Forest Degradation) and HWP(Harvested Wood Products) are important issues at the post-Kyoto Protocol. Illegal logging is also a major issue in the wood products trade. Major developed countries adopt wood promotion policies to tackle climate change and construct a low-carbon green economy. They promote the merits and provide some technical information when using wood. In Korea, wood consumption is about 27 million cubic meters per year, and self-sufficiency of wood is 13.5%. Domestic wood is used to produce pulp and particle boards in large part. Poor forest resource structure, high cost in wood harvest, negative perceptions to harvest, and low infrastructures are challenging issues in domestic wood supply. The Korean government also adopts Low Carbon Green Growth as a policy base. The demand for wood biomass energy is increasing. These are opportunities to the wood industry. But high production cost in wood harvest and the thin wood consumption culture are weaknesses. We should establish a wood promotion strategy to overcome weaknesses and exploit opportunities. We made some policy suggestions to promote wood use as follows: 1) campaign to increase the utilization and consumption of wood in the public side 2) develop and disseminate durable wood goods, such as engineered wood 3) adopt carbon labelling to show the carbon sequestration function of wood products 4) increase wood supply through utilization of forest residues, short-rotation coppice in idle farmland, and international cooperaton 5) establish technical standards to certify the safety of wood products 6) legislate wood utilization to tackle climate change.

Rat의 복강내에 투여한 5-fluorouracil-polyglycolic acid 제형이 장기에 미치는 영향에 관한 연구

강대영,송규상,최정목,노승무,정경수,오정연,김진향,양준묵,최선웅,이진호,조준식,민병무,김용백,김창식,박근성,김승영,김학용,인현빈 충남대학교 의과대학 지역사회의학연구소 1998 충남의대잡지 Vol.25 No.1

For more effective intraperitoneal chemotherapy, the authers made 5-fluorouracil-polyglycolic acid composite disks(FU-PGA disks) with 5-fluorouracil and polyglycolic acid, a biodegradable polymer. We inserted the FU-PGA disk into the peritoneal cavites of Sprague-Dawley male rats, the control and three experimental groups; one FU-PGA disk insert group(300mg/kg), two FU-PGA disk insert group(600mg/kg), and three FU-PGA disk insert group(900mg/kg). The control group received a similar number of PGA disk inserts. A pharmacokinetic study was performed to measure the 5-fluorouracil concentration in the peritoneal fluid, blood, and tissues(liver, kidney and heart) at 24 hours, 72hours and 168 hours after insertion of the FU-PGA disk. Light and electron microscopic studies were done. The results were as follows: 1) The number of white blood cells and platelets decreased after FU-PGA insertion. The degree was proportional to the duration and amounts inserted. The change in the number of red blood cells varied slightly. 2) Light microscopically, slight changes were noted at 168 hours in the 3 disk insert group (900mg/kg). Mild fatty change and hepatocyte degeneration around the central veins of the liver were noted, with vacuolar degeneration in the proximal convoluted tubules of the kidney. 3) Electron microscopically,the liver showed focal increases of lipid droplets in the hepatocytes, and irregular nuclear membrane with focal nucleolar segregation of the fibrillar and granular elements. Also the double membranous structure of the hepatocytes and Kupffer cells was widened with bleb formation. The kidney showed wide separation of the nuclear double membrane in the proximal convoluted tubular cells and mesangial cells, with vacuolation and myelin figure formation in the mitochondria of the proximal convoluted tubular cells, at 72 hours and 168 hours in the 2 to 3 FU-PGA insert groups. The heart showed focal loss of cristae,vacuolation and myelin figure formation in the mitochondria of the 2 to 3 FU-PGA insert groups. In conclusion, despite the large amont of FU-PGA inserted, the histopathological changes in the liver, kidney and heart were slight, and consonant with the very low amount of 5-fluorouracil concentrations detected in the liver, kidney and heart. The above results suggest that the FU-PGA composite can serve as a new device for releasing drugs in a controlled manner and easily targeted to intraperitoneal organs. This device can improve the efficacy of intraperitoneal chemotherapy for gastric cancer.

Time-Related Changes in Detrusor Overactivity in Awake Rats with Spinal Cord Injury Observed by Simultaneous Registrations of Intravesical and Intraabdominal Pressures

Jin, Long-Hu,Shin, Hwa-Yoan,Yoon, Seung-Hwan,Seong, Do-Hwan,Park, Chang-Shin,Lee, Tack,Yoon, Sang-Min Korean Continence Society 2011 International Neurourology Journal Vol.15 No.1

<P><B>Purpose</B></P><P>To compare the physical characteristics of detrusor overactivity (DO) induced by intravesical infusion of saline in awake, sham rats and rats with chronic spinal cord injury (SCI), by simultaneous registrations of intravesical and intraabdominal pressures.</P><P><B>Methods</B></P><P>Male Sprague-Dawley rats, normal or with a spinal vascular clip at the level of Th9, were investigated cystometrically 1 and 4 weeks after SCI. Intravesical pressure (IVP) and intraabdominal pressure (IAP) were recorded simultaneously to evaluate true DO. During the filling phase, the event of IVP rises, defined as increments that exceeded 2 cmH<SUB>2</SUB>O from baseline, were determined as DO according to the absence of simultaneous changes in IAP.</P><P><B>Results</B></P><P>All SCI rats exhibited DO during the filling phase, which was not shown in sham rats. The frequency and pressure of DO had a tendency to decrease with time. The DO frequency of SCI rats after 4 weeks (0.9±0.2 min<SUP>-1</SUP>) was decreased compared with that after 1 week (2.1±0.4 min<SUP>-1</SUP>; P<0.05). The DO pressure of SCI rats after 4 weeks (8.4±1.9 cmH<SUB>2</SUB>O) was decreased compared with that after 1 week (11.6±2.9 cmH<SUB>2</SUB>O; P>0.05).</P><P><B>Conclusions</B></P><P>Cystometric studies in awake male SCI rats showed some significant changes in bladder function after SCI. All SCI rats exhibited DO during the filling phase, and showed different physical characteristics of DO over the course of time. The neurological basis of these time-related changes remains poorly understood, but may provide important prognostic information about long-term urological management in SCI patients.</P>

Contributions of intramolecular and intermolecular energy changes to strain-induced enthalpy relaxation in uniaxially drawn poly(lactic acid) films

Kim, Min Sung,Chang, Jin-Hae,Lee, Sang Cheol Elsevier 2015 Polymer Vol.64 No.-

<P><B>Abstract</B></P> <P>Blends of poly(lactic acid)s (PLAs) containing three different concentrations of <SMALL>D</SMALL>-isomer (i.e., 1, 4, and 10 mol%; referred to as PLA1, PLA4, and PLA10, respectively) with poly(<SMALL>DL</SMALL>-lactic acid) (PDLLA) were prepared via solution blending. The three PLAs were miscible with PDLLA, as determined by dynamic mechanical analysis. Drawn films of PLA1/PDLLA, PLA4/PDLLA, and PLA10/PDLLA blends exhibited endothermic peaks just above the glass transition temperature, which is evidence of strain-induced enthalpy relaxation. A thermodynamic model for the miscible blend system was applied to determine contributions of intramolecular and intermolecular energy changes to strain-induced enthalpy relaxation for PLA1, PLA4, and PLA10; the resultant values suggested that intramolecular energy changes are mainly responsible for strain-induced enthalpy relaxation.</P> <P><B>Highlights</B></P> <P> <UL> <LI> Drawn films of PLA blends exhibit endothermic peaks just above glass transition temperature. </LI> <LI> For PLA containing less than 4 mol% of <SMALL>D</SMALL>-isomer, almost 60% of the endothermic heat originates from intramolecular energy change. </LI> <LI> As the <SMALL>D</SMALL>-isomer content of PLA increases, the contribution of intramolecular energy change to the endothermic heat increases. </LI> <LI> Overall, intramolecular energy change is primarily responsible for strain-induced enthalpy relaxation. </LI> </UL> </P> <P><B>Graphical abstract</B></P> <P>[DISPLAY OMISSION]</P>