뇌하수체 종양 제거술 시행 후 뒤늦게 발생한 횡문근 융해증과 동반된 중추성 열

장제혁,최규남,김일환,노은지,김윤정,유충헌,고정해,박봉수,김태균,권민정,이순희,박정현 인제대학교 2008 仁濟醫學 Vol.29 No.-

Body temperature is controlled by thermoregulatory center of the hypothalamus. We report a case of 24 years old man with central fever. He was subjected to a partial excision of pituitary tumor compressing optic chiasm four years ago. He has received hormonal therapy for panhypothyroidism after removal of pituitary tumor. And He received gamma knife operation for partially contrast-enhancing masses in suprasellar and both hypothalamic areas that is probably postoperatively remnant or recurrent tumor of pituitary adenoma. One year after gamma knife operation, he presented with a febrile syndrome of unknown origin including rhabdomyolysis. All usual investigations proved negative. We diagnosed him as central fever with rhabdomyolysis. He received medical ICU care with cooling bed, ice pack. And his symptom improved. Postoperative hyperthermia may result following resection of the pituitary tumor. When central fever is suspected taking note of past history, a quick recognition of course of fever can help reduce the using of unnecessary antibiotics and hospital stay.

라오스의 벼 생산 현황과 문제점

이문희,최경진,이정일,정남진,양원하,김제규 한국국제농업개발학회 2001 韓國國際農業開發學會誌 Vol.13 No.4

Rice is the single most important crop in Lao PDR. In the 2000 rice production year, total rice production in the Laos reached 2.2 million tons. This is regarded as sufficient to provide national self-sufficiency. The rice harvested area in 2000 was approximately 719,500ha and represented 80% of cropped land area. Approximately 82% of production was from wet season cropped and 18% was from the irrigated dry season. Grain yield per unit area vary from 1.68 to 4.39 ton/ha in the wet season environment. However, the highest grain yield (4.39 ton/ha) obtained from the dry season irrigated crop. Higher yields and reduced year variation in production can be expected with the further intensification of production systems in the low land environments. However, further imporvements in production will be dependent on higher levels of inputs and further alleviation of some the production constraints.

성선자극호르몬유리호르몬 길항제인 Antide가 수컷 생쥐의 유해감각예민도에 미치는 영향

박정현,박제민,김명정,이국희,최상헌,장세헌 대한생물치료정신의학회 2001 생물치료정신의학 Vol.7 No.1

To investigate testosterone effect on nociception, tail flick latency(TFL, sec, 50±1℃) was measured before and after administration of antide(a gonadotropin releasing hormone antagonist) in male mice(Institute of Cancer Research, age of 7-8 weeks, weight 30.5-37.5gm). Testosterone replacement effect on TFL was also examined in antide pre-treated male mice. Experiment 1:30 male mice were randomized into 3 groups(N=10 each). Antide 100㎍/kg, 300㎍/kg or same volume(5.7ml/kg) of 0.2% bovine serum albumin was administered intraperitoneally. TFL was measured before and at 3,6, 9, 12 and 24 hours after injection. Experiment 2 : 40 novice male mice were randomized into 2 groups(N=20 each) and both groups were pre-treated with antide 300㎍/kg i.p.6 hours after antide injection, testosterone 1mg/kg or same volume(5.7ml/kg) of sesame oil was administered i.p. TFL was measured before and 6 hours after antide pre-treatment and 30 min after testosterone/vehicle injection. 1) TFL was significantly shortened by antide in dose dependent manner, In control group, baseline TFL(mean±SD) and those measured at 3,6,9,12 and 24 hours after injection were 4.8±0.7, 5.6±0.7, 5.3±0.6, 5.4±0.6 and 4.7±0.6 sec, respectively. In antide 100㎍/kg group, TFLs were 5.2±0.9, 5.1 ±1.1, 4.2±0.9, 4.4±0.8, 5.1±0.8, and 4.7±0.8 sec, respectively. Compared with baseline, significant hyperalgesia appeared 6 and 9 hours after treatment. TFL measured at 6 hours after treatment was significantly shorter than control. In antide 300㎍/kg group, TFLs were 5.6±0.4, 4.5±0.9, 4.3±0.6, 3.9±1.0, 4.6±0.8 and 4.7±0.9 sec. Significant hyperalgesia appeared 3 hours after treatment and continued thereafter. TFLs measured at 3, 6 and 9 hours after treatment were significantly shorter than control, and TFL at 9 hours was significantly shorter than antide 100㎍/kg group. 2) Hyperalgesia induced by antide pre-treatment was recovered by testosterone replacement. In control group. TFL was shortened by antide pre-treartment(baseline : 6.1±1.0 sec ,6 hr after antide : 4.7±1.0 sec) and there was no significant change after vehicle injection(4.6±0.8 sec). In testosterone group, shortening of TFL induced by antide pre-treatment(baseline: 6.2±0.8 sec; 6 hr after antide: 4.6±0.9 sec) disappeared after testosteronen replacement(0.6±0.8sec). From these results, it is suggested that testosterone has a role of maintaining baseline antinociception and acute decrease in testosterone level results in hyperalgesia.

탄소섬유그리드를 이용한 RC보의 보강효과에 관한 실험적 연구

이인희,심낙훈,김정재,박영석 명지대학교 산업기술연구소 2001 産業技術硏究所論文集 Vol.20 No.-

Reinforced concrete structures are damaged by material, environmental, and physical factors during service period. Also, when we designed, the stiffness of member should be increased because of unexpected overloads and decreased durability. So, recently, repair and strengthening are became a concern on reinforced concrete structure. On this study, damaged reinforced concrete member are reinforced using carbon fiber grid, new multi cumulated material. And effect of reinforcement is experimentally analyzed. First of all, material properties of carbon fiber grid, uncontracted polymer mortar, and rapidly hardening mortar are experimentally researched. And then, application is verified by shear test and attachment test with two kinds test specimen, respectively. Using five actual size RC beam (width 40cm, height 50cm, length 650cm), yield strength test and bending test are carried out. Finally, yielded five specimens are reinforced with each other methods and fracture strength test is carried out. That results are compared and analyzed to confirm the reinforcement effect.

불소화합물의 골육종 및 구강암 세포주에 대한 독성의 비교분석

송제선,이백수,김정희 한국환경독성학회 1999 환경독성보건학회지 Vol.14 No.3

Fluorination of drinking water has been used world widely to reduce the incidence of caries. Recently, contradictory results on the cytotoxicity of fluoride compounds are reported. In addition, there are attempts to use fluorosilicate for fuorination of drinking water in Korea, therefore, we tried to analyze the cytotoxicity of fluoride compounds on oral epidermoid carcinoma (KB and A253) and osteosarcoma (HOS and MG-63) cells in this study. We treated cells with 0, 10, 50 and 250 ppm of fluorosilicic acid (domestic or from Fluka, F_(6)H₂Si), sodium fluorosilicate (F_(5)Na₂Si), sodium fluoroacetate (FCH2CO2Na), sodium fluoride (NaF) or potassium fluoride (KF) and measured the relative cell survival by Mn' assay. At the concentration of C 10 ppm, no significant cytotoxicity was observed. At 50 ppm, each cells revealed different response to fluoride treatment. Among cells used in this study, MG-63 was the most resistant to fluoride treatment. Comparable toxicity data from domestic and imported fluorosilicic acids were obtained. When we compared the relative cytotoxicity of fluoride compounds against their fluoride contents, the differences in relative cell survival were smaller. Most of cells showed C 20% of survival at 250 ppm. In order to analyze the pH dependence of the cytotoxicity of fluorosilicates, the pH of cell culture media containing fluorosilicate was adjusted to 7.4 or 6.5 and the relative cytotoxicity was measured. At lower pH, about 10% higher cytotoxicity was obtained. Thus, our data suggested that the toxicity of domestic fluorosilicic acid was sirnilar to that of fluorosilicic acid from Fluka, and the cytotoxicity of fluoride compounds was dependent an the relative content of fluoride and pH.

CRP* 의존성 maltose 대사 촉진 유전자 sfs4의 클로닝 및 염기배열 결정

최용락,정희태,조무제,정수열 東亞大學校附設遺傳工學硏究所 1996 遺傳工學硏究 Vol.- No.3

CRP (cAMP receptor protein)은 cAMP와 결합하여 cAMP-CRP 복합체를 형성하여 전사조절의 조절인자로서 작용한다. crp 유전자에 변이를 도입하여 cAMP의 비존재 상태에서 cAMP-CRP와 비슷한 기능을 가진 crp* 유전자가 도입된 대장균 MK2001 (crp*¹, cya::km)을 숙주로 사용하여 cAMP 혹은 cGMP의 비존재하에서도 mal 유전자의 발현을 촉진시키는 유전자 sfs (sugar fermentation stimulation) 수 종을 클로닝하였다. 본 실험에서는 이미 밝혀진 nlp (Ner like protein) 유전자와 같이, sfs의 새로운 유전자를 탐색하여, 그 중 sfs4의 2126bp 전 염기배열을 결정하고, 잠정적인 sfs4의 promoter 영역에는 CRP 단백질과의 결합 DNA 공통 염기배열(5' AAT TGTGA ACACCA TCACC CGT 3')이 존재함을 확인했다. lacZ 융합 유전자를 작성하여 TP2010R1과 MK2001의 균주에서 cAMP를 첨가할 경우 각각 2.3배, 1.8배의 β-galactosidase 활성이 증가 하는 것으로 보아 sfs4는 cAMP-CRP에 의해 발현 조절을 받는 것으로 나타났다 In Escherichia coli, CRP forms a complex with cAMP and acts as a transcriptional regulator of many genes, including sugar metabolism operons. The E. coli MK2001, which is introduced the altered crp*¹, is functional in the expression of lac, ara and man, in the absence of cAMP. However, the expression of mal gene is fully activated by the addition of cAMP or cGMP. The object of the study is cloning of the sfs (sugar fermentation stimulation) genes, which was involved in regulation of mal gene expression with the altered crp*¹gene, and structural analysis and characterization of the genes at the molecular level. We have cloned 5 different E. coli genes which stimulate the maltose metabolism in a crp*¹, cya::km (MK2001) background. Newly identified genes were designated as sfs. One of the sfs genes (pPC1), located at the 53.2 min map position in the E. coli chromosome, was further analyzed. Expression of the genes, which is involved in maltose metabolism, malQ (amylomaltase), was increased to 5.8-fold in the presence of a plasmid, pAP5, containing the subcloned sfs4 gene. The nucleotide sequence of a common 2,126bp segment of the pPCM1 was determined and two open reading frames (ORF1 and ORF2) were detected. The ORF1 encodes the sfs4 gene and ORF2 encodes a truncated protein. Potential CRP binding site is located in the upstream of the putative promoter in the regulatory region. Expression of the cloned sfs4 gene was positively regulated by the cAMP-CRP complex.

G-CSF로 체내 증폭된 골수를 이용한 동종 조혈모세포이식

이종욱,김정아,민창기,김희제,엄현석,박수정,서정곤,김동욱,홍영선,민우성,김춘추,김동집 대한조혈모세포이식학회 1998 대한조혈모세포이식학회지 Vol.3 No.2

연구배경: 이식시 주입되는 골수세포수는 생착 속도 및 생존율과 밀접한 관계가 있으나, 임상적으로 환자의 체중이 공여자에 비해 지나치게 많을 때 단위 체중당 환자에게 주입되는 세포의 양이 적어 문제가 될 수 있다. 방법: 저자들은 가톨릭 조혈모세포이식 센터에서 동종 골수이식을 시행한 환자들 중 환자의 체중이 공여자에 비해 10kg이상 많은 경우 골수 채취 전에 공여자에게 3일간 피하로 G-CSF(10ug/kg/day)를 투여하여 골수를 체내(in vivo) 증폭시킨 후 골수이식을 시행한 25예의 환자를 대상으로 고식적인 방법으로 골수이식을 시행한 위험인자가 일치되는 대조군과 비교하여 이식된 세포수, 혈구의 회복속도 및 이식편대 숙주반응(GVHD)의 발생율, 그리고 생존율 등을 비교 분석하였다. 결과: 단기간의 G-CSF 투여로 증폭된 골수의 총 유핵세포수, 단핵구수는 대조군에 비해 3-5배, CD34 + 세포수는 6배 증폭되었으며, 두 군간에 세포의 면역표현형(CD4, CD5, CD7, CD8, CD20)의 차이는 없었다. 중성 백혈구 수가 0.5×10^(9)/L 이상 회복되는 시기는 두 군간의 차이가 없었으나(15.5일 vs 16일; p=0.131), 혈소판 수가 30×10^(9)/L 이상으로 회복되는 시기는 G-CSF 투여군에서 의의있게 단축되었다(20일 vs 26일; p=0.013). 두 군간 급성 및 만성 GVHD의 발생률과 정도의 차이는 없었으며, 이식 후 재발 및 생존율의 차이도 없었다. 결론: 이식전 공여자에게 단기간 G-CSF를 주사하여 생체내에서 골수 조혈모세포를 증폭시킨 후 이식하는 방법은 공여자와 환자의 심각한 체중 차이로 인해 단위체중당 이식되는 조혈모세포양이 부족한 환자들에게 안전하고 유용한 방법일 뿐만 아니라 GVHD의 증가 없이 빠른 혈구회복을 기대할 수 있는 이식기법이라고 생각한다. 향후 증폭된 골수 조혈모세포의 특성 연구 및 이의 효용성을 확인하기 위한 전향적인 연구가 필요하리라고 생각된다. Background: Sufficient stem cell doses are necessary to overcome engraftment failure in allogeneic bone marrow transplantation(BMT). Cell doses harvested may depend on body weight (BW) difference between donor and recipient. In practice, it is important to achieve large number of stem cells from donor who were lower BW than that of recipient. Methods: We have tried to inject G-CSF(10ug/kg/day) subcutaneously for 3 days to the allogeneic donor with lower BW than recipient before harvest to increase BM inoculum. BM was infused into patients without any manipulation on day 5. A total 25 patients were enrolled; 12 AML, 6 ALL, 5 SAA and 2 CML(expansion group). We compared the expansion group with 25 historical control patients, matched for diagnosis and clinical characteristics, who underwent unprimed BMT. Results: Recipient BW is not different between the expansion and control group. However, allogeneic donors in the control group weigh heavier than those in the expansion group. The yield of TNC, MNC, and CD34^(+) cells from G-CSFprimed BM was significantly higher than that from unprimed BM. There was no difference in immunophenotyping analysis(CD4, CD5, CD7, CD8, CD20) between two groups. The median time reaching to absolute neutrophil count more than 0.5×10^(9)/L was not different(15.5 vs 16 days: p=0.131), but time to platelet recovery more than 30×10^(9)/L was significantly shorter for the patients who received G-CSF-primed BM (20 vs 26 days: p=0.013). There was no difference in the incidence of acute and chronic GVHD, relapse rate and overall survival between the two groups with a median follow-up of 13 months. Conclusion: These data suggest that the short-term administration of G-CSF to an allogeneic donor prior to BM harvest seems to be a feasible method to achieve an adequate number of cell doses for patients who weigh higher than donors. Randomized, prospective study is needed to evaluate the efficacy of allogeneic BMT using in vivo expansion of BM by G-CSF.

수지상세포의 방사선 저항성에 대한 연구

김은실,김종순,이명호,범희승,민정준,정환정,김성민,허영준,송호천,이제중 대한핵의학회 2003 핵의학 분자영상 Vol.37 No.3

목적 : 림프구와 비교되는 수지상 세포의 방사선 민감성을 보기 위하여 본 연구를 시행하였다. 대상 및 방법 : 말초혈액에서 분리한 T 림프구에 0 Gy, 10 Gy, 30 Gy의 방사선을 조사하고 4시간 후에 유세포 분석기를 이용하여 선량별 세포고사 빈도를 관찰하였다. 또한 조혈모세포에서 미성숙 및 성숙 수지상 세포를 단계적으로 분리 배양하여 각각 0 Gy, 10 Gy, 30 Gy, 100 Gy의 방사선을 조사하고 4시간, 24시간 그리고 48 시간 후에 선량별 세포고사 빈도를 관찰하였다. 사이토스핀(cytospin)슬라이드에 림프구와 미성숙 및 성숙 수지상세포를 3×104개 씩 분주하고 May Grunwald-Giemsa 염색한 후, 광학 현미경 하에서 각각의 세포군 당 100개의 세포에서 세포 면적당 핵의 면적 비를 측정하였다. 결과 : 림프구에서는 방사선조사 선량별로 세포고사 빈도가 유의하게 증가하였으나, 수지상 세포에서는 그 분화정도나 방사선조사 선량에 따른 세포고사의 빈도차이가 없었다. 또한 수지상 세포는 방사선선량과 관계없이 용량에 의존적으로 강력한 T-세포 자극능을 보였다. 림프구의 세포에 대한 핵의 면적 비는 미성숙 및 성숙 수지상세포의 세포에 대한 핵의 면적 비보다 현저히 큰 반면, 두 가지 수지상세포간에 유의한 차이는 없었다. 결론 : 수지상세포는 그 분화도와 상관없이 림프구에 비하여 방사선 저항성을 나타내었고, 이는 세포의 형태적 차이에 따른 표적의 크기와 관련이 있을 것으로 생각되며, 향후 분자 생물학적인 연구의 기초 자료로 활용할 수 있을 것으로 생각된다. Purpose : To evaluate radiation sensitivity of dendritic cells in comparison with lymphocytes. Materials and methods : T lymphocytes captured from peripheral blood were irradiated by 0 Gy, 10 Gy, 30Gy. Apoptosis was measured by flowcytometry for staining of Annexin V 4 hours after irradiation. Immature and mature dendritic cells processed from blood hematopoietic stern cell were irradiated by 0 Gy, 10 Gy, 30 Gy, 100 Gy respectively and apoptosis was measured by flowcytometry with time difference as 4h, 24h and 48h after irradiation. Morphometric analysis by percent nucleus was measured in three cell groups, also. Results : Lymphocytes showed radiation sensitivity by increasing apoptotic fraction according to radiation dose. However, both mature and immature dendritic cells showed consistent fraction of apoptosis in spite of increasing radiation dose. Percent nucleus ratio is significantly higher in lymphocytes than that of mature or immature dendritic cells. Stimulation of T-cell by dendritic cells was not changed after irradiation. Conclusion : Dendritic cells showed radioresistance which was associated with small size of nucleus in comparison with lymphocytes and this result would be used as a basal data of radio-labelling for the cellular trafficking studies in nuclear medicine fields.

Caffeic Acid의 ONOO^(-) 제거활성

이지영,성도유,노재경,김유정,제정환,김민선,최재수,정해영,이경희 대한암예방학회 2003 Journal of cancer prevention Vol.8 No.3

조혈모세포이식 환자의 삶의 질에 대한 연구 : 화학요법 환자 및 정상인과의 비교

김병수,서재홍,최철원,김열홍,김준석,김정아,손상균,김재석,이경희,이제중,정익주,곽재용,안진석,이정애,박영석 대한조혈모세포이식학회 1999 대한조혈모세포이식학회지 Vol.4 No.1

연구배경: 조혈모세포이식후 신체 및 정신적 장애의 정도가 얼마나 환자의 '삶의 질(QOL)'에 영향을 미치는지에 대하여 외국에서는 연구들이 활발히 진행되고 있다. 그러나 우리나라에서는 조혈모세포이식이 비교적 활발히 시술되고 있음에도 불구하고 이에 대한 연구가 미미한 실정이었다. 연구자 등은 우리 나라에서 조혈모세포이식을 받은 환자들의 QOL은 어떤지를 알아보고자 하는 목적으로 본 연구를 시행하였다. 방법: 본 연구에 참여한 각 기관에서 조혈모세포이식을 받고 주된 치료가 끝난 후 1999년 2월 시점에서 최소 3개월이 지나고 관해상태에서 일상생활을 영위하고 있는 재생불량성 빈혈과 급성 및 만성 백혈병 환자들을 각각 자가 및 동종 조혈모세포이식을 시행받은 조혈모세포이식군(1군)과 항림프구 글로불린, 공고요법 등으로 치료를 끝낸 화학요법군(2군)으로 분류하고 연구자 병원에 내원한 건강한 환자 보호자들로 이루어진 정상대조군(3군)을 선정하여 각각의 QOL을 비교, 분석하였다. QOL의 측정은 EORTC QLQ-C30 문항을 우리나라의 실정에 맞게 번역하여 사용하였다. 결과: 조혈모세포이식군(1군)은 53명, 화학요법군(2군)은 57명, 정상대조군(3군)은 55명 이었고, 성별, 나이, 질환별 분포, 검사시점 등에서의 유의한 차이는 없었다. 각 군간의 QLQ-C30 평균 점수를 비교한 결과, 전반적인 삶의 질에서는 1군이 73.5, 2군이 51.7, 3군이 79.3으로 2군이 1.3군보다 낮았고 역할 및 사회기능은 각각 1군이 64.3/68.9, 2군이 57.6/70.3, 3군이 85.2/85.5로 1,2군이 3군에 비하여 낮았다.(P<0.01). 또한, 오심/구토가 1군은 8.7, 2군은 4.5, 3군은 3.2로 1군이 2, 3군보다 높았으며 통증은 1군은 17.0, 2군은 19.2, 3군은 9.6으로 1,2군이 3군에 비하여 높았다(p〈0.01). 기타 신체, 감정, 인식기능 및 피로에서는 각군간에 유의한 차이를 발견할 수 없었다. 결론: 본 연구에 참여한 조혈모세포이식환자들의 전반적인 삶의 질은 화학요법을 받은 환자들보다 우월하면서 정상인들과 유사하였으나 역할기능 및 사회기증, 통증에서는 화학요법 환자들처럼 정상인들에 비하여 열악하였고 오심/구토는 화학요법 환자들 및 정상인에 비하여 심한 양상을 보였다. 그러므로 본 연구를 바탕으로 하여 국내 실정에 맞는 QOL 측정 방법을 개발하고 조혈모세포이식을 시행받는 환자들의 삶의 질에 관한 연구들이 향후 계속 진행되어야 하리라고 생각된다. Background: It is very important to endow patient with satisactory quality of life (QOL). However, little is known about QOL after hematopoietic stem cell transplantation (HSCT) in Korea. In this study we tried to measure QOL in the patients treated with HSCT and compare QOL scores with those of patients treated with usual chemotherapy and normal populations. Methods: The QOL evaluation was performed with EORTC QLQ-C30 questionnaires interpreted to Korean language. The study populations were consisted with 53 patients treated with HSCT (Group 1), 55 patients treated with usual chemotherapy (Group 2), and 55 normal populations (Group 3). The QLQ-30 scores of each group were evaluated and compaired with x² test. Results: Global quality of in group 1, 3 (score: 73.5, 79.3, respectively) were higher than that (score: 51.7) of group 2. Role and social function were lower in group 1, 2 (score: 64.3/68.9, 57.6/70.3, respectively) than those (score: 85.2/85.5) of group 3. The degree of nausea and vomiting was more severe in group 1 (score: 8.7) than those of group 2, 3 (score: 4.5, 3.2 respectively). Pain scores of group 1, 2 (score: 17.0, 19.2, respectively) were more higher than that of group 3 (score: 9.6) In other parameters of QLQ-C30, there was no significant difference between each groups. Conclusion: Our perliminary result may suggest that HSCT is not necessarily associated with deterioration of QOL. This underlines the necessity of undertaking perospective studies using reliable and well-validate methods for measuring QOL