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      • 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.

      • 백서의 복강내에 투여한 Mitomycin-C-Polyglycolic acid 제형이 장기에 미치는 영향에 관한 연구

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

        To evaluate the in-vivo effects of mitomycin-C-polyglycolic acid composite(MMC-PGA) the disk: shaped composite were implanted into the peritoneal cavity of the Sprague-Dawley rats. The pathologic changes were examined at various time points up to 12 weeks. Initially the soft tissue around the inserted disks showed capillary congestion at 3 days. Inflammatory infiltrates with foreign body giant cells appeared from the 2nd week and reached peak response at 6-8 weeks. These reaction diminished prominently at 12 weeks. No specific pathologic change was found in the liver, the kidneys, and the heart. The above results suggest that the MMC-PGA composite can serve as a new device for intraperitoneal chemotherapy of various types of cancers.

      • 한국인 임신부에 있어서 영양소의 역가측정

        최기영,김웅철,박기현,배도환 중앙대학교 의과대학 의과학연구소 1982 中央醫大誌 Vol.7 No.2

        Animal and human studies indicated that inadequate diet for a prolonged period during pregnancy could injure mother, child, or both. In order to prevent this problem, maternal nutyitional status during pregnancy is very important and the evaluation of nutrition during pregnancy have been preceded by many authors in another countries. In Korea, nutrient intake studies of the pregnant women and nutrition surveys in adult by biochemical method have been performed, but there are no data nutrition surveys of Korean pregnant women have been made by biochemical method. In this regard, an exact biochemical titer of the nutrients and the degree of nutrient deficits in Korean pregnant women are needed. In this study, the mean titer of some nutrients and the degree of nutrient deficits by biochemical method in Korean pregnant women were assessed. The objected materials were consisted of 30 cases which had visited the departmant of Obstetrics & Gynecology, Chung Ang University Hospital for antenatal care(32wk-40wk) from March, 1981 to June, 1981. The cases with twin pregnancy, and the cases complicated with materal chronic wasting disease, diabetes, hydroamniosis, hypertensive disorder in pregnancy were excluded in this study. The results were as follows: 1. Mean titer of 6 hours urine execretion of thiamine, riboflavin and N'-methylniacinamide in Korean pregnant women was 44㎍, 466㎍, and 2.33㎎. 2. Mean titer of serum vitamin A, carotene, vitamin C, total protein, calcium, phosphorus, iron and total lipid was 48.1㎍, 154.7㎍, 0.8㎎, 7.0g, 9.8㎎ 3.5㎎, 93㎍, and 578㎎. 3. Percentage of nutrient deficits in Korean pregnant women based on the mean titer of Korean adults was as follow; thiamine-20%, N'-methylniacinamide-7%, total protein-5%, calcuim13%, iron-19%. 4. No cases were deficient in riboflavin, carotene, phosphorus, total lipid and the mean titer of riboflavin and carotene in Korean pregnant women were high compared with thw mean titer of Korean adults.

      • 지자체 웹사이트의 스포츠관광 정보 내용분석 및 평가

        최영웅,강효민 한국스포츠리서치 2003 한국 스포츠 리서치 Vol.14 No.4

        Today, thirty years after a modern convenience of internet appeared. Internet affects all industries over the world. It is very definitely conclude the correlation, as the human life is included in internet. Moreover, when considering the heart of new the sours of sports tourism is future sports tourism market will be the greatest developed by municipal government. Now, it has greater potential to develop services to facilitate access of visitors beyond municipal government. There is insufficient discussion on how sports tourism with information feature should be service to visitors. Internet web-sit is very useful means in providing information services to such sports tourism. For that reason, this study is the evaluation and analysis on the contents to sports tourism information in web-site of municipal government. The result of this study indicate that web-sites of municipal government with a large amount of sports tourism information. The amount of information to sports tourism infra in web-sites of municipal government is a different based on municipal government and The information to type of sports tourism in web-sites of municipal government is a different based on municipal government On the other hand, the five dimensions of the web contents: the level of convenience for navigation, simplicity of the webpage structure, substantiality in the information content, information quality, and additional customer service is a different based on municipal government. The sports tourism information in web-site of municipal government indicates an actual means available ultimately developing local economy in local area and realizing more early the value creation in the tourism market. The purpose this study boils down to this, in order to effetely service of sports tourism information, municipal government should be organization to the sports tourism information and the rich to the contents and also web-site of municipal government should be examined continuously in future as well.

      • 정신분열병 입원 환자에서 단축형 증상관리 훈련의 효과:예비적 연구

        최충식,채정호,우동원,최영희,함웅,이규항,장미화 대한신경정신의학회 2001 신경정신의학 Vol.40 No.1

        연구목적: 정신분열병 환자에서의 재활치료는 개인의 극복 기술과 능력을 향상시키고 재발을 유발시킬 수 있는 스트레스의 부정적인 영향을 중화시킴으로써 질병의 만성화를 막고 사회기능을 호전시킬 수 있기에 점차 그 중요성이 대두되고 있다. 본 연구는 만성 정신분열병 입원 환자에서 재활치료의 하나인 단축형 증상관리 훈련이 정신장애에 대한 자기 인식에 미치는 효능을 알아보기 위하여 시행되었다. 방법: 정신분열병으로 진단받고 입원 중인 환자들에게 재발경고징후를 규명하는 것, 재발경고징후를 관리하는 것, 지속증상을 극복하는 것, 술과 불법 약물을 피하는 것 등으로 구성된 승인-UCLA 사회기술 및 독립적인 생활기술훈련 단위 중 증상관리단위를 기초로 한국실정에 맞게 축약한 증산관리 훈련을 주 1회, 60분씩, 4∼5주간 실시하였고 실시 전후에 전신장애 비인식 평가 척도(Scale to Assess Unawareness ofMental Disorder; 이하 SUMD)로 자신의 정신장애에 대한 인식을 평가하였으며 임상적 전반적 인상(Clinical Global Impression;이하 CGI)로 임상 상태를 조사하였고 각 인구학적 변인들을 조사하였다. 결과: 환자 30명이 훈련을 완수하였으며 이들의 평균 연령은 36.6±7.6세였고 남자가 14명(46.7%), 여자가16명(53.3%)이었다. SUMD 점수는 훈련 전 16.9±4.0점에서 훈련 후 12.9±4.2점으로 유의하게 줄어 정신장애에 대한 자기 인식 정도가 향상되었으며(p<0.01), CGI도 훈련전의 3.7±0.9점에서 훈련 후 2.8±0.8점으로 유의하게 호전되었다(p<0.01). 환자의 연령, 발병시 연령, 유병 기간, 입원 기간, 항정신병약물 사용 용량, 교육 정도, CGI로 평가한 임상 상태등은 정신장애의 자기 인식 정도와는 관련성이 없었다. 결론: 정신분열병 입원 환자에서 단축형 증상관리 훈련은 정신장애에 대한 자기 인식을 증가시킬 수 있는 방법이 될 가능성을 확인하였으며 이 방법이 정신분열병 재활치료의 중요한 요소가 될 수 있음을 알 수 있었다. Objectives : The purpose of this study was to examine whether Symptom Management Module-Korean Brief Version(SMM-B) is effective as a psychosocial treatment of the inpat-ients with chronic schizophrenia. We also questioned which of demographic and clinical characteristics could be predictors of differential treatment response. Methods : The subjects were composed of 30 inpatients with chronic schizophrenia, who were trained with weekly session of SMM-B for 5 weeks. Before and after the training, the level of psychopathology, knowledge about schizophrenia were assessed as dependent variables by using Clinical Global Impression(CGI) and Scale to Assess Unawareness of Mental Disorder(SUMD). Results : Overall, patients showed improvement over the treatment period on psychopath-ology as well as knowledge about psychosis. Total scores of SUMD were changed from 16.9±4.0 before training to 12.9±4.2 after training(p<0.01) and scores of CGI were improved from 3.7±0.9 to 2.8±0.8<p<0.01). Howver age, gender, years of education, age of onset, duration of illness, duration of admission, numbers of psychiatric admission, and clinical status evaluated by CGI were not correlated with unawareness of psychosis. Conclusion : These results suggest that SMM-B could be a reliable method to improve self-aw-areness of psychosis in patients whth chronic schizophrenia and one of important elements in rehabilitation.

      • 악성 질환에서의 고용량 화학요법과 자가말초혈액 조혈모세포이식술 : 단일기관 치료 경험

        최정혜,안명주,오호석,이웅수,오석중,이영열,최일영,김인순 대한조혈모세포이식학회 2003 대한조혈모세포이식학회지 Vol.8 No.2

        연구배경: 고용량 화학요법은 항암제의 투여 용량에 따라 항암효과가 비례하는 용량반응 관계가 있는 악성종양에서 효과를 기대할 수 있으며 현재 급성백혈병, 악성림프종, 다발성골수종 등의 혈액 종양과 유방암, 고환암, 난소암, 신경아세포종 등의 고형암 환자에서 시행되고 있다. 저자들은 고용량화학요법에 이어 자가조혈모세포이식을 시행 받은 악성 종양 환자를 대상으로 치료효과 및 부작용 등의 임상상을 알아보고자 하였다. 방법: 1997년부터 2003년까지 한양대학교 병원에서 자가조혈모세포이식을 시행 받은 악성 종양 환자 31예(남서 : 여성 15 : 16, 중앙연령: 50세, 다발성골수종 14예, 비호지킨림프종 9예, 유방암 4예, 호지킨림프종 3예, 급성골수성백혈병 1예)를 대상으로 후향적 분석을 시행하였다. 결과: 채집된 단핵구의 중앙값은 5.1×10^(8)/kg (범위 1.6~189.3)이었고 CD34양성세포수의 중앙값은 12.0×10^(6)/kg (범위 1.3~75.1)이었다. 말초혈액 과립구가 500/μL 에 도달하는 중앙값은 11일(범위 8~27)이었고 혈소판이 20,000/μL에 도달하는 중앙값은 11일(범위 0~32)이었다. 고용량 항암화학요법 후 21예가 완전관해, 5예가 부분관해에 도달하였다. 생존한 환자의 중앙추적기간은 29.5개월이었고 전체 환자의 2년 무병생존기간은 55.7%이었고 중앙값은 48.2개월이었다. 2년 생존기간은 62.9%이었으며 중앙값에는 도달하지 않았다. 10예의 사망환자 중 7예가 질병의 진행으로 사망하였고, 조기사망 3예(심부전과 신부전 1예, 장파열 1예, 패혈증 1예)가 있었다. 결론: 이 연구는 포함된 환자의 수가 적고 추적기간이 짧은 단점이 있으나, 다발성골수종, 악성림프종 등의 악성 질환에서 고용량 항암화학요법과 자가조혈모세포이식은 안전하고 효과적인 치료임을 추정할 수 있었다. Background: We performed the current study to evaluate the safety and efficacy of high-dose chemotherapy (HDC) with autologous peripheral blood stem cell transplantation (ASCT) in malignant diseases. Methods: Between January 1997 and March 2003, 31 patients (14 multiple myeloma, 9 Non-Hodgkin's lymphoma, 3 Hodgkin's disease, 4 breast cancer, and 1 acute myelogenous leukemia) underwent HDC with ASCT. Stem cells were collected by CS-3000 after mobilization treatment with chemotherapy and granulocyte colony-stimulating factor. The conditioning regimens included high-dose melphalan, BEAM (BCNU, etoposide, cytosine arabinoside, melphalan), BEAC (BCNU, etoposide, cytosine arabinoside, cyclophosphamide), CPB (cyclophosphamide, cisplatin, BCNU) and others. Results: There were 15 male and 16 female patients and median age was 50 years (range: 29~77). The median number of mononuclear and CD34+ cells was 5.1×10^(8)/kg (1.6~189.3) and 12.0×10^(6)/kg (1.3~75.1), respectively. The median time of neutrophil (>500/μL) and platelet (>20,000/μL) engraftment was 11 (8~27) and 11 (0~32) days after ASCT, respectively. Twenty-two patients experienced neutropenic fever. Twenty-one patients achieved complete remission and 5 patients achieved partial remission after HDC with ASCT. The median follow-up duration for surviving patients was 29.5 months. Causes of death included disease progression (7), sepsis (1), bowel perforation (1), and renal failure (1). Median progression free survival (PFS) was 48.2 months and median overall survival (OS) was not reached. Two-year PFS and OS was 55.7% and 62.9%, respectively. Conclusion: Our results suggest that HDC with ASCT was safe and effective modality in patients with various malignant diseases.

      • 참당귀(Angelica fifas Nakai)의 캘러스로부터 체세포배 발생에 미치는 계대배양 주기의 영향

        최용의,소웅영 全北大學校 基礎科學硏究所 1994 基礎科學 Vol.16 No.-

        Embryogenic callus was produced form leaf segments cultured on medium containing 1.0 mg/L 2,4-D. The callus gave rise to somatic embryos after transfer the embryogenic callus to medium without 2,4-D. Also, somatic embryogenesis occured from aged callus on medium containing 2,4-D. To investigate the effects of culture periods on somatic embryogenesis the embryogenic calli were cultured for 2, 4, 6 and 8 weeks on medium containing 1.0 mg/l 2,4-D and then transferred to medium with or without 2,4-D. In prolonged preincubation, somatic embryos were formed early and at high frequency and their development normally occured. When subcultured on medium containing 2,4-D, the callus preincubated for 6 to 8 weeks was capable of producing somatic embryos. Histological observation revealed that 4 weeks-old embryogenic callus on medium containing 2,4-D was composed of mainly typical embryogenic cells, whereas the 8-weeks-old callus was composed of nonembryogeinc cells and that. In the developing state of somatic embryo on medium without 2,4-D, all the cells of callus were in vacuolated and elongated except developing somatic embryos.

      • 그람양성구균에 대한 Teicoplanin과 Vancomycin의 시험관내 항균력

        최태열,김경숙,전용관,서일혜,김정욱,이웅수,안정열,김홍석,정재용,최효선,김덕언,유진우 대한감염학회 1994 감염 Vol.26 No.1

        An increasing frequency of methicillin resistant S. aureus(MRSA), methicillin resistant coagulase negative staphylococci(MRCNS) and Enterococcal infection have been observed in recent years. Teicoplanin is a new glycopeptide antibiotic obstained from the Actinoplanes teicomycetius. The molecular structure and spectrum of antimicrobial activity of teicoplanin is simillar to those of vancomycin, and has been reported to have an excellent in vitro and in vivo effect against various gram-positive infections. Therefore, we evaluated the in vitor susceptibility of gram positive cocci, such as, S. aureus, coagulase negative Staphylococci(CNS), and Enterococci to teicoplanin and vancomycin. The total 253 strains consisted of MSSA(40), MRSA(53), MSCNS(47), MRCNS(48), and Enterococci(65). They were assayed by disc diffusion and agar dilution. During the study, 57% of S. aureus and 49% of CNS showed resistance to methicillin. The inhibitory diameter of teicoplanin was 15-20mm in MSSA, 12-19mm in MRSA, 13-24mm in MSCNS, 11-23mm in MRCNS, and 15-22mm in Enterococci respectively, and showed sensitivity in all but 8 strains(3.2%). The range of the minimum inhibitory concentration (MIC) of teicoplanin to MSSA, MRSA, MSCNS, MRCNS and Enterococci were 9.12-2.0㎍/ml, 0.25-2.0㎍/ml, & 0.25-32㎍/ml, 0.12-1.0㎍/ml respectively. One case of S. haemolyticus was resistant to teicoplanin (32㎍/ml) by the agar dilution method. Eight minor (3.2%) and one major(0.4%) error was observed when the MIC and disk diffusion data were correlated with teicoplanin. As for vancomycin the inhibitory diameter was 17-21mm in MSSA, 15-21mm in MRSA, 18-26mm in MSCNS, 18-25mm in MRCNS, and 16-22mm in Enterococci respectively. The range of the MIC of vancomycin to MSSA, MRSA, MSCNS, MRCNS, and Enterococci were 0.25-1.0㎍/ml, 0.25-4.0㎍/ml, 0.5-2.0㎍/ml and 0.5-2.0㎍/ml respectively. One minor error (0.4%) was seen with the vancomycin disk. The MIC90 of MSSA and MRSA exhibited the same results in teicoplanin (1.0㎍/ml, 1.0㎍/ml), and vancomycin(2.0㎍/ml, 2.0㎍/ml). MSCNS and MRCNS exhibited greater MIC90 with teicoplanin(4.0㎍/ml, 8.0㎍/ml) than vancomycin(2.0㎍/ml, 2.0㎍/ml). Incontrase Enterococci were more susceptible to teicoplanin(0.5㎍/ml) than to vancomucin (2.0㎍/ml). Results from this analysis indicated that both teicoplanin and vancomycin were very excellent for gram positive infections, especially those resistant to methicillin.

      • 가시오갈피 접합자배로부터 체세포배 발생 과정의 구조적 특성

        최용의,소웅영 全北大學校 基礎科學硏究所 1994 基礎科學 Vol.16 No.-

        가시오갈피 접합자배를 1.0 mg/L 2,4-D가 첨가된 MS 배지에 배양하였을 때, 배양재료 표면에서 직접 체세포배가 발생되었다. 접합자배를 온전한 상태로 배양하였을 때에 비하여 상처를 주어 배양하였을 때 배발생률이 증가되었으며, 부위별로 절단하여 배양하였을 경우 하배축에서 발생률이 높았다. 체세포배발생에 대한 조직학적 관찰 결과, 유근부위가 잘록한 단일배와 여러개의 배가 서로 융합된 다배가 관찰되었다. 이들 두가지 모양의 체세포배는 접합자배의 부위마다 발생빈도가 달랐는데, 자엽이나 하백축하부에서는 단일배가 주로 관찰되었고, 배형성능이 높은 부위인 자엽절이나 하배축상부에서는 다배의 발생률이 높았다. 단일배는 표피의 단세포 기원되었으나 다배는 모두 표피 및 하표피의 다수세포에서 기원되었음이 조직학적 관찰로 확인되었다. When the zygotic embryos of Acanthopanax senticosus were cultured on MS medium containing 1.0 mg/L 2,4-D, somatic embryos were produced directly from the surface without forming an intervening callus. The frequency of embryo formation was higher in the wounded zygotic embryos than in the intact ones. Hypocotyl explants showed a higher frequency of somatic embryo formation that cotyledon or radicle explants. Two typeds of somatic embryos were observed : one was single embryos with closed radicle which were mainly formed on cotyledon or radicle part; and the other was polyembryos of which hypocotyls were fused one another showing multicotyledons with a single hypocotyl. Histological observation revealed that single embryos originated from the single epidermal cells while polyembryos were derived from massive cells of epidermis of subepidermis.

      • 산업폐수의 전기화학적인 응집처리에 관한 연구

        최영근,임남웅 중앙대학교 건설산업기술연구소 2001 건설산업기술연구소 논문집 Vol.2 No.-

        The effect of electrochemical process to treat the industrial Wastewater for removal of COD_Mn was described in this study. The tests on COD_Mn, pH and conductivity were performed. It was shown from the tests that, in regard to efficiency of COD_Mn removal, 1.5㎝ between the electrodes for electical resistance was optimally appeared. The COD_Mn concentration and conductivity of the waste water were initially decreased when the voltage charge was increased. Removal of COD_Mn was predominantly occurred with addition of NaCl and increase of retension time. The optimal amount of NaCl solution was 2,000㎎/L. The effective removal of COD_Mn was appeared when current density was increased and pH was decreased.

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