동종 골수 이식한 백혈병에서 단반복 유전자로 살펴본 혼합 키메라 현상의 의의

장대영,이정신,서철원,이규형,이제환,지현숙,박찬정,한면수,최동원,김정균,최성준,김성배,김상위,김우건,김상희 대한조혈모세포이식학회 1998 대한조혈모세포이식학회지 Vol.3 No.1

연구배경 : 동종 골수 이식한 백혈병에서 키메라 현상의 분석은 착상, 질병 재발과 이식 거부를 이해하는데 도움을 줄 수 있다. 최근 STR을 PCR로 증폭한 검사법에 의해 매우 민감하고 유용하게 혼합 키메라 현상을 검출할 수 있다고 보고되고 있으나, 이 방법의 민감도와 임상적 의의는 아직 완전히 정립되지는 않았다. 따라서 PCR-STR검사법이 혼합 키메라 현상을 민감하게 검출하는지 보고, 동종 골수 이식 후 혼합 키메라 현상의 변화 양상을 관찰하고, 키메라 현상의 임상적 의의를 보고자 하였다. 방법 : 형제로부터 동종 골수 이식한 급성 백혈병 6명과 만성 백혈병 2명의 모두 8명을 대상으로 하였다. 44개 골수 검체에서 phenol/chloroform방법에 의하여 단핵세포 DNA를 추출하였다. DNA는 CTT 삼중체, vWA와 amelogenin시발체를 이용하여 증폭하였다. 증폭 산물은 5% 폴리아크랄아미드 젤에서 전기영동 뒤 은 염색으로 확인하였다. 2명의 DNA를 여러 비율로 혼합하여 상기 검사를 하여 검출 가능 최소 농도를 결정하였다. 결과 : 상기 검사법의 검출 가능 최소농도는 0.25%였다. 혼합 키메라 현상은 8명중 4명에서 관찰되었다. 혼합 키메라 현상은 보인 1명에서 급성 및 만성 이식편대 숙주 질환이 나타났고, 완전 공여자 키메라 현상을 보인 1명에서 만성 이식편 대 숙주 질환이 나타났다. 점진적으로 증가하는 혼합 키메라 현상을 보인 2명은 이식 후 12개월에 질병 재발을 보였으나, 완전 공여자 키메라 현상을 보인 경우엔 재발이 관찰되지 않았다. 결론 : PCR-STR검사법은 동종 골수 이식 후 남아 있는 환자 세포를 검출하고 키메라 현상을 관찰하는데 유용한 방법이다. 또한 이 검사법은 동종 골수 이식 후 재발의 조기 진단, 이식편 대 숙주 질환의 평가와 면역 관용에 임상적으로 응용할 수 있으리라 생각한다. Background : Chimerism analysis after allogeneic bone marrow transplantation (BMT) for leukemia could be helpful understanding of the early marrow engraftment, disease relapse, and graft rejection. Recently, a PCR technique which amplifies short tandem repeats(STR) has been reported to be highly sensitive and reliable in detecting mixed chimerism. But its sensitivity and clinical significance has not been established. The purpose of this study was firstly, to confirm whether a PCR-STR in highly sensitive enough ti assess mixed chimerism, secondly to monitor the changing patterns of mixed chimerism after allogeneic BMT, and lastly to determine correlation between the chimeric status and the clinical outcome. Methods : A study was made eight patients (six with acute leukemia and two with chronic leukemia) who underwent unmanipulated allogeneic BMT along with matched donors. DNA was extracted from mononuclear cells of 44 bone marrow samples using a phenol/chloroform method. Amplification of DNA was done using CSFIPO-TPOX-TH01(CTT) triplex with or without vWA or amelogenin primer. The amplified product was separated on 5% polyacrylamide gel and was confirmed by silver staining. The sensitivity of CTT triplex method was determined by mixing DNA from two person in serial proportion using the same method. Results : The sensitivity for CTT triplex method was 0.25% Mixed chimerism was documented in 4 of 8 patients. ONe of four patients with mixed chimerism developed acute and chronic graft versus host disease (GVHD) and one of four patients with complete donor chimerism also developed chronic GVHD. Two patient with progressive mixed chimerism relapsed at 12 months post-BMT, whereas no patient with complete donor chimerism has relapsed. Conclusion : The study has found that PCR-STR was an effective method for the detecting residual host cell and monitoring the chimeric status after allogenic BMT. PCR-STR can also be clinically applicable in early prediction of relapse, appropriate assessment of GVHD, as well as tolerance after allogeneic BMT.

TiO₂를 이용한 아세틸렌 가스의 광촉매 산화반응

정대일,김성엽,이도훈,이용균,박유미,최순규,김동현 동아대학교 환경문제연구소 2000 硏究報告 Vol.23 No.1

Photocatalyzed degradation of acetylene gas was carried out over precoated titanium dioxide(anatase) illuminated UV light in a flow reactor. photocatalytic oxidation of acetylene gas indicated high conversion rates (78.0%) to CO₂gas. And photocatalytic oxidation of gas according to a fold, twofold, and threefold of titanium dioxide(anatase) respectively gave high conversion rates. The longer reaction time was, the higher conversion rate to CO₂ gas showed.

신호분리를 위한 Diplexer에 관한 연구

성정현,김성균,김상혁,김호섭,박준석,안달 호서대학교 반도체제조장비국산화연구센터 2000 학술대회 자료집 Vol.2000 No.1

본 논문에서는 신호의 분리와 합성이 가능한 Diplexer를 제작하였다. 저역 통과 여파기와 고역 통과 여파기의 특성을 정합하여 Diplexer로 구현함으로써 신호의 분리와 합성이 가능하다는 것을 시뮬레이션을 통해 확인하였다. 또한 신호의 분리와 합성의 가능성을 입증하기 위해 실제 마이크로스트립구조의 Diplexer를 제작, 측정한 결과 각각의 통과 대역폭 내에서 0.4dB, 0.8dB이내의 삽입손실과 -20dB의 반사손실이 됨을 실험결과를 통해 알수 있었고 또한, 인덕터의 구현 방법을 마이크로스트립으로 하여 주파수 특성과 재현성을 높였다.

신경병증성 통증 모델쥐 뒤뿌리신경절의 Nitric Oxide Synthase 아형 및 NADPH-diaphorase 발현에 관한 연구

정성균,김수일,양은진,류택근,권오유,박경란,이영호,김원식 충남대학교 의과대학 지역사회의학연구소 1998 충남의대잡지 Vol.25 No.2

Injury to peripheral nerve somtimes lead to neuropathic pain. Nitric oxide(NO) is increased in the dorsal root ganglia (DRG) of neuropathic pain models, and L-NAME, a nitric oxide synthase (NOS) inhibitor, reduces neuropathic pain. However, it is not known that underlying mechanism of NO involvement in development and maintanence of neuropathic pain. It was found that there were three NOS isoforms-nNOS, eNOS, and iNOS. It is also necessary to investigate NOS isoforms in neuropathic pain. The aim of this study is to investigate NOS isoforms and NADPH-diaphorase expressions and underlying mechanism of NO involvement in neuropathic pain. The 5^th lambar (L5) DRG were obtaind after tight ligation of L5 an L6 spinal nerves for 7 days. Toluidine blue stain, immunohistochemistry for nNOS, eNOS, and iNOS, and NADPH-diaphorase histochemistry were performed. All specimens were observed under light microscope. nNOS expression was increased significantly in the cytoplasm of the DRG of ligated side at 7 day post-ligation (7D PL). eNOS expression was also increased in the blood vessel, a few neurons or satellite cells, and cell membrane of Schwann cells in the DRG of ligated side at 7D PL. iNOS expression was increased in a few blood vessels and cytoplasm of small neurons in the DRG of ligated side at 7D PL. NADPH-diaphorase expression was increased significantly in the neurons of the DRG of ligate side at 7D PL, but NADPH-diaphorase expressions were weak or absent in the blood vessel and Schwann cell in the contralateral DRG and the DRG of ligated side at 7D PL. It is suggested that NOS isoforms may be closely related to development and mantanence of neuropathic pain in order of nNOS>eNOS>iNOS.

金鰲神話 硏究

정상균 서울市立大學校 1992 論文集 Vol.26 No.-

Kim Si-Seup(1435-1493), the first significant writer of imaginative, wrote his immortal Geum-o-sin-hwa influenced by Jeun-deung-sin-hwa. The book enjoyed a great popularity in Korea. But Kim Si-Seup was originally a man who turned from reality, because he could not come to terms with the demand for the renunciation of instinctual satisfaction as it was first made, and who then in fantasy-life allowed fully play to his erotic and ambitious wishes. In Geum-o-sin-wha, Kim Si-Seup's wishful phantasy remains repressed. It is also instructive to consider Geum-o-sin-hwa in the relation of anxiety-dreams. In the dreams, a repressed wish has found a means of evading censorship and the distortion which censorship involves. In Geum-o-sin-hwa, Kim Si-seup's obsessional self-reproaches also appear.

중수지골 관절부위에 발생한 건초 거대 세포종양의 치험례 : A case report

정성균 순천향의학연구소;Soonchunhyang Medical Research Institute 2004 Journal of Soonchunhyang Medical Science Vol.10 No.2

Author reports a rare tenosynovial giant cell tumor located adjacent to the third metacarpophalangeal joint of right hand involved bony erosion. Histologically, tenosynivial giant cell tumor is characterized by a number of multinucleated giant cells with a proliferation of synovial cells. This tumor usually occurs on the interphalangeal joint of the hand, especially the terminal interphalgeal joint. It has a benign nature but shows local recurrences. This case is a very rare case occuring in the metacarpophalangeal joint area.

정상인과 체육인의 교합상태에 대한 정성적·정량적 비교 연구

장정미,최대균,이성복 慶熙大學校 齒科大學 1995 慶熙齒大論文集 Vol.17 No.2

This study was accompolished to analyze and compare the number and area of the occlusal contact points in healthy volunteers and athletes with nonrial occlusion. For this study, 15 athletes(13 amles and 2 females with average age 20) and 21 healthy volunteers(14 mles and 7 females with average age 20.09) were selected. The visual display acquired by scanning of occlusal record in maximal intercuspation was converted into 16 gray value image. Then, using computer program(] & Lee Occlusal Analyser), the pixel which was in definite range of the gray value was recognized, and the numbers of recognized pixel were calculated to area. The results were as follows ; 1. The average numbers of total alusal contact points were 31.05 in control group, and 34.67 in athlete group. The average area of total occlusal contacts was 100.25mm2 in control group, and 127.78mrn in athlete group. 2. In control group, the average numbers of occlusal contact points were revealed in order as follows the first molar(8.48). the secondmolar(8.24), the second premolar(4.71), the lateral incisor(2.90), the first premor(2.43), the central incisor(2.19), and the canine(2.1). The least average in canine(2.1) was similar to the average(2.19) in central incisor and (2.09) in lateral incisor. In athlete group, the average numbers of occlusal contact points were revealed in order as follows ; the first molar(8.87), the secondmolar(8.47), the second premolar(5.60), the canine(3.80), the lateral incisor(3.33), the first premnolar(2.67), and the central incisor(1.93). 3. In ' control group, the average areas of occlusal contact surface were revealed in order as follows ; the first molar(39.47mm'), the second molar(37.54mu>'), the second premolar(9.541d) the first premolar(6.18mm'), canine(3.49mn?), the central incisor(2.76mn?), and the lateral incisor(1.28mm'). In athlete group, the average areas of occlusal contact surface were revealed in order as follows ; the first molar(44.l1mm'), the second molar(40.69mm'), the second premolar(16.50mm'), the first premolar(9.39mm'), the canine(5.08 mm'), the lateral incisor(3.7mni), and the central incisor(2.25mmT 4. With aging in both control and athlete group, there was a decreasing tendancy in average number of occlusal contact point, and was an increasing tendancy in average area of occlusal contact surface. In comparison at each age, both the numbers and area of occlusal contact were greater in athlete group than in control group. It was not significant in the numbers of occlusal contact points beween athlete and control group(p>0.1), but significant in the area of occlusal contact surface(p<0.05). 5. In comparision as to the kind of sports(Gymnastics : 2, Rugby : 3, Soccor : 5, Ice hocky : 5), the numbers Of occlusal contact points were the most in ice hocky, and the area of occlusal contact surface was the greatest in gymnastics. With increasing a career in athlete group, there was a decreasing tendancy in average numbers of occlusal contact points and was an increasing tendancy in average area of occlusal contact surface. By 'I'-scan analyzing, the contact numbers on the anterior teeth were greater in control group than in athlete group, and on the posterior teeth were greater in athlete group than in control group. And the results aquaired by T-scan were lesser than that aquaired by the silicone bite records. It was not significant in the posterior teeth, but significant in the anterior teeth. In T-scan records, the numbers of occlusal contact points on second molar were the greatest, but rn the silicone records, the numbers on first molar were the greatest.

벼의 배발생 세포로부터 식물체 재분화

황성진,정병균,민영주,황 백 全南大學校 農漁村開發硏究所 1992 農業科學技術硏究 Vol.27 No.-

벼 현탁배양 세포로 부터 체세포 배발생에 의해 재분화 개체가 이루어졌다. 배발생에 의해 재분화 개체가 이루어졌다.배발생 캘러 스는 2.5mg/ℓ2.4-D 가 첨가된 MS 배지에서 유도되었으며,현탁배양은 5mM proline, 2.5mg/ℓ2.4-D 그리고 200mg/ℓcasein hydrolysate 가 첨가된 N6 medium 에서 계대배양하였다. 이와같은 현탁배양세포는 세포질이 충만된 세포들로 구성되었으며,액체배지에서 10개월이상 유지시켰을때,체세포 배 발생 빈도는 지속적으로 유지되었으며 현탁배양세포를 5mg/ℓkinetin, 1mg/ℓNAA, 1mg/ℓABA, 3% sucrose 와 1% sorbitol이 첨가된 MS 고체배지로 옮겨졌을때 높은 빈도의 식물체 재분화가 이루어졌다. This study was carried out to obtain the high frequency of plant regeneration from cultured cells of rice(Oryza sativa L. ev Taebaeg). Embryogenic callus was induced from matured-seed on MS medium conatining 2.5mg/ ℓ 2.4-D and used to establish embryogenic cell suspension culture. Embryogenic cell suspension cultures were subcultured every one week in N6 medium supplemented with 5 mM proline,200mg/ℓcasein hydrolysate and 2,5mg/ℓ2.4-D. Embryogenic suspension cultures were composed of cells that were densely cytoplasmic, potentially embryogenic and maintained for more than 10 months. Somatic embryo formed when embryogenic cell suspentions were transferred to solid medium which consisted of MS medium containing 5mg/ℓkinetin, 1mg/ℓNAA, 1mg/ℓABA,3% sucrose and 1% sorbitol and subsequently the high frequency of plant regeneration were achived.

혼화재료로서 석분토의 재활용 가능성 평가

이상욱,김성원,오상균,김정길,마상준 대한건축학회 2003 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.23 No.2(구조계)

Stone-Dust are inevitable by-products of almost rocky mountains which produce artificial sands in korea. The annual amounts of Stone-Dust is over 80,000㎥ approximately. Almost pre-existing Stone-Dust piled up out in the open space on disposed of industrial waste, it can result in critical environmental problem. The aim of this study is to promote the recycling of industrial waste as a kind of material of admixture. This study conducted some experiments such as pozzolan reaction test and flow test, compressive strength of mortar using Stone-Dust in heat-treatment. As a result of, compressive strength of mortar using stone-dust in heat-treatment is superior in the case of 700℃ 90min.

고시치카제오라이트에 의한 아민류의 흡착평형특성

이성식,김형준,최정균 동아대학교 공과대학부설 생산기술연구소 1998 生産技術硏究所硏究論文集 Vol.3 No.1

Liquid phase adsorption equilibria of amines in aqueous solution onto high silica zeolite pellets(HSZ) experimentally determined by use of a batch bottle technique at 298K. The data for HSZ / amines system was fit to 4 isotherm equations to determine an optimum equation. The best equation for the amine adsorption isotherms onto HSZ is the Freundlich isotherm. The products k·n of the Freundlich constant increase with the boiling point T_B, molecular volume V_m and dissociation constant pK_a of amines.