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면역조직화학염색법을 이용한 흉막의 악성중피종과 전이성 선암의 감별진단
고경행 ( Kyung Haeng Ko ),박창민 ( Chang Min Park ),임명수 ( Myung Soo Rim ),김유일 ( Yoo Il Kim ),장일권 ( Il Gweon Jang ),황준화 ( Joon Hwa Hwang ),임성철 ( Sung Chul Lim ),김영철 ( Young Chul Kim ),박경옥 ( Kyung Ok Park ),박 대한결핵 및 호흡기학회 1999 Tuberculosis and Respiratory Diseases Vol.47 No.4
김일호(Il Ho Kim),안호상(Ho Sang Ahn),박종빈(Jong Bin Park),김광수(Gwang Soo Kim),이주행(Ju Haeng Lee),고준희(Jun Hee Ko) 大韓環境工學會 2012 대한환경공학회지 Vol.34 No.12
도심의 교통량의 증가와 더불어 급증하는 교통소음의 피해를 최소화하기 위하여 도로변 지역에 방음벽의 설치가 이루어지고 있다. 이에 따라 여러 형태의 방음벽 설치되었고, 그 형태와 재질에 따라방음성능, 시야확보측면, 유지관리 등에서 장단점이 존재한다. 최근 꾸준하게 적용되고 있는 반사형 투명형 방음벽의 경우, 시야를 확보할 수 있고 외관이 우수하지만 반사음의 영향을 고려해야 하는 단점이 있다. 본 연구에서는 방음벽 전면 형상에 의한 반사음의 영향을 분석하여 반사형 방음벽을 최적화하여 반사음의 영향을 최소화 하고자 하였다. 방음벽 전면에 두께가 다른 블록을 설치하고 일반 반사형 방음벽의 소음 반사 효과와 비교한 결과, 일반 반사형 투명 방음벽에 비하여 0.9∼1.5dB(A)의 소음저감 효과가 있었다. 또한 반사음이 증가 또는 감소하는 공간적 영역이 블록의 두께에 따라 변화하는 것을 알 수 있었다. 이러한 현상은 방음벽 전면 형상에 따라 소음의 집중 및 확산분포가 다양하게 변화하는 것을 나타내며 방음벽을 최적화하는 기술의 가능성을 보여주는 결과라고 판단 하였다. In recent decades, a lot of noise barriers have been installed along paved road in order to reduce the road induced noise, which increases as traffic volume grows. For better range of sight, transparent noise barriers are widely installed despite of reflecting noise. In this study, the effect of surface shape and pattern of noise barriers on the reduction of reflecting noise was analyzed to maximize the noise reduction. According to the number of shape and pattern, it was observed that there were noise reduction effect as of 0.9∼1.5dB(A). It was found that the spatial field where the noise concentrates or disperses changes according to the width of blocks on the barriers as well. It suggests that there might be possibility of surface shape modification to optimize the noise reduction technology.
Recurrent True Brachial Artery Aneurysm
Seongmin Ko,Il-Yong Han,조광현,Yang-Haeng Lee,Kyung-Taek Park,Mee-sun Kang 대한흉부외과학회 2011 Journal of Chest Surgery (J Chest Surg) Vol.44 No.5
True aneurysm of the brachial artery is a rare disease entity. The mechanism of aneurysm formation is considered to be compression of the arterial wall, producing contusion of the media and subsequent weakness of the wall and fusiform dilatation. It can be caused by arteriosclerotic, congenital, and metabolic disorders, and can be associated with diseases such as Kawasaki’s disease. Doppler ultrasonography, computed tomography, arteriography, and selective upper extremity angiography may be performed for establishing the diagnosis of aneurysm. The best therapeutic option is operative repair, and it should be performed without any delay, in order to prevent upper extremity ischemic or thrombotic sequelae. Here, we report a case of recurrent brachial artery aneurysm with review of the literature.
고칼슘혈증을 보인 폐암환자에서 부갑상선호르몬(PTH)과 부갑상선호르몬관련단백질(PTHrP)이 동시에 증가된
김유일 ( Yu Il Kim ),김규식 ( Kyu Sik Kim ),유영권 ( Young Kwon Yu ),박창민 ( Chang Min Park ),임명수 ( Myung Soo Rim ),고경행 ( Kyung Haeng Ko ),황준화 ( Jun Hwa Hwang ),박형관 ( Hyeong Kwan Park ),임성철 ( Sung Chul Lim ),김영철 대한결핵 및 호흡기학회 1999 Tuberculosis and Respiratory Diseases Vol.47 No.4
월경전기 증후군 : 월경전기평가서와 매일평가서에 의한 평가 Evaluated by Premenstrual Assessment Form & Daily Rating Form
곽동일,고영,조숙행 大韓神經精神醫學會 1995 신경정신의학 Vol.34 No.1
Objective : Diagnostic method of Premenstrual syndrome was controversial because Premenstrual syndrome was not definitive and most studies had used retrospective mothed. In our studies, it was evaluated by PAF and prospective DRF for estimate context of premenstrual change. Method : Our study got the data about premenstrual change evaluated by PAF & DRF from 42 healthy nurse students. These data was estimated by typological categories of PAF clinical and subclinical change of DRF, cluster classification of DRF items and finally comparison of PAF with DRF. Results : 1) Among the subjects who met the citeria for PAF typhological categories, General discomfort syndrome was most common(61,90%). Major depressive syndrome of changes in mood and behavior was shown in 17 females (40.48%) and most common subtype of Major Depressive Syndrome was 14 females. 2) Most common clinical change were increased appetite. Most common subclinical changes were breast pain. 3) Of cluster classification most common clinical change was dysphoric mood cluster in 11 subjects and most common subclinical change was Physical discomfort cluster in 20 subjects. 4) Among the subjects who met the criteria of PAF typological categories ; 17 Major depressive syndrome, 26 General discomfort syndrome and 23 Impaired social functioning, these subjects confirmed as clinical changes were each of 10(58.58%), 15(57.69%), 15(65.22%). 5) Among the subjects who met the criteria of PAF typological categories, subjects confirmed by the clinical change were 63.64%. Conclusion : Premenstrual changes were variable and showed positive as well as negative changes. Our study suggest that data of PAF show obvious change in physical condition but psychological symptoms such as dysphoric premenstrual changes were confirmed significantly but physical symptoms measured insubstantial changes by DRF. It is important the clinical changes showed the premenstrual symptom apparently and that subclinical changes are also worthy to be observed by the longitudinal studies. We suggest that DRF is necessary to confirm the premenstrual changes.
한국인 폐암 환자에서 RRM1 유전자 Promoter의 다형성
고경행 ( Kyung Haeng Ko ),김은정 ( Eun Joung Kim ),오인재 ( In Jae Oh ),김수옥 ( Soo Ock Kim ),손준광 ( Jun Gwang Son ),정종필 ( Jong Pil Jung ),조계중 ( Gye Jung Cho ),주진영 ( Jin Young Ju ),김규식 ( Kyu Sik Kim ),김유일 ( Yu Il 대한결핵 및 호흡기학회 2006 Tuberculosis and Respiratory Diseases Vol.61 No.3
연구배경: 약 75%의 비소세포 폐암에서 loss of heterozygosity (LOH)를 보이는 11p15.5에 위치한 ribonucleotide reductase M1 subunit gene(RRM1) 유전자는 ras transformed fibroblast를 이용한 실험에서 암세포의 전이능력을 감소시키는 것으로 보고되어 있어서 암억제 유전자로서의 가능성이 높다. RRM1의 promoter 부위인 exon 1 시작에서 (-)37과 (-)524번째 염기에 A/C 그리고 C/T 다형성이 발견되었는데 이 다형성의 양상에 따라 RRM1 유전자의 발현 정도가 조절될 수 있어서 폐암 발생의 위험도가 다를 수 있다. 대상 및 방법: 전남대학교 병원에 내원한 폐암환자들과 비폐암 대조군 환자 127예와 미국인 폐암 환자 140예의 말초혈액 백혈구로부터 얻은 DNA를 이용하여 미국인과 한국인에서의 유전자 다형성의 분포 및 임상적 의의를 조사하였다. 결과: RRM1 유전자의 Exon 1으로 부터 (-)37 염기에서 A/C 유전자 다형성은 127예 중 CC가 64예(50.4%), AC는 55예(43.3%), 그리고 AA는 8예(6.3%)에서 발견되었다. Allele A의 빈도는 미국인들의 27.9%에 비하여 한국인에서 28.0%로 차이가 없었고, 폐암군과 비폐암군 간에도 유의한 차이는 관찰되지 않았다. RRM1 유전자의 (-)524 염기에서 C 또는 T 유전자 다형성의 양상은 CC가 24예(18.9%), CT는 44예(34.6%), 그리고 TT는 59예(46.5%)에서 발견되었다. Allele C의 빈도는 36.2%로써 미국인의 34.6%와 차이가 없었고, 폐암군과 비폐암군 간에도 차이는 관찰되지 않았다. RRM1 유전자의 (-)37 염기는 인종에 관계없이 70% 이상에서 C 이었고, (-)524 염기는 65% 정도에서 T를 보이고 있었다. 또한 (-)37과 (-)524 염기는 서로 밀접한 상관관계를 보이고 있었다. 즉 (-)37염기가 모두 C인 경우 (-)524 염기도 모두 T인 빈도가 높았고, (-)37 염기가 한 개라도 A를 가지고 있는 경우 (-)524 염기도 C를 가지고 있는 빈도가 높았다 (p<0.001). 결론: RRM1 유전자의 발현을 조절하는 promoter 부위의 두 개의 유전자 다형성의 빈도는 인종 간에 그리고 폐암군과 비폐암군 간에 차이가 없어서 폐암 발생의 위험인자는 아니었다. 그러나 두 유전자 다형성이 서로 특정 조합을 보임으로 그 조합 양상에 따른 promoter 활성도에 대한 연구가 뒤따라야 할 것이다. Background: LOH11A is a region with frequent allele loss (>75%) in lung cancer that is located on the centromeric part of chromosome 11p15.5. Clinical and cell biological studies suggest that this region contains a gene associated with metastatic tumor spread. RRM1 encoding the M1 subunit of ribonucleotide reductase, which is an enzyme that catalyses the rate-limiting step in deoxyribonucleotide synthesis, is located in the LOH11A region. Methods: Polymorphisms were found at nucleotide position (-)37 (C/A) and (-)524 (C/T) from the beginning of exon 1 of the RRM1 gene that might regulate the expression of RRM1. We studied the polymorphisms in 127 Korean individuals (66 lung cancer and 61 normal controls) and compared with those of 140 American patients with lung cancer. Results: CC, AC and AA were found at the (-)37 position in 64(50.4%), 55(43.3%), and 8(6.3%) out of 127 Korean individuals (66 cancer, 61 non-cancer patients), respectively. There was a similar frequency of allele A at (-)37 in the American(27.9%) and Korean population(28.0%). CC, CT and TT was found at the (-)524 position in 24(18.9%), 44(34.6%), and 59(46.5%) out of the 127 Korean individuals, respectively. There was a similar frequency of allele C at (-)524 in the American(34.6%) and Korean population(36.2%). There was no difference in the frequency of the (-)37 and (-)524 genotypes between the cancer and non-cancer group. However there was a significant correlation of the genotypes between (-)37 and (-)524 (p<0.001), which suggests the possible coordination of these polymorphisms in the regulation of the promoter activity of the RRM1 gene. Conclusion: RRM1 promoter polymorphisms were not found to be significant risk factors for lung cancer. However, a further study of the promoter activity and expression of the RRM1 gene according to the pattern of the polymorphism will be needed. (Tuberc Respir Dis 2006; 61: 248-255)
( Young Kyu Jung ),( Yunho Jung ),( Il Kwun Chung ),( Chang Il Kwon ),( Young Sin Cho ),( Gwang Il Kim ),( Kwang Hyun Ko ),( Sung Pyo Hong ),( Seok Jeong ),( Don Haeng Lee ) 대한내과학회 2014 대한내과학회 추계학술발표논문집 Vol.2014 No.1
Background: The submcosal lifting gel (Cook Medical) is a novel injectate for submucosal lifting of gastrointestinal lesions. It has been proven to be an effective lifting solution to facilitate tissue resection and auto-dissection of submucosal layer after its submucosal injection. The aim of this study was to evaluate the effi cacy of a novel submucosal lifting gel for performing EMR-P in the case of large lesion. Methods: This study was designed as a prospective, controlled, animal, and pilot study. A total of 31 artificial lesions were created on body of stomach by electrocautery marking with endoscopic ruler in fi ve live micro-pigs. Results: All 31 lesions were successfully resected by EMR-P method with a new submucosal lifting gel by two experienced endoscopists in 3 micro-pigs. The long axis of the mean size of resected specimens was 3.7 (± 0.3) cm, 4.6 (± 0.5) cm, and 5.1 (± 0.7) cm in the group 1, 2 and 3 respectively. The mean circumferential resection time was signifi cantly longer in the group 3 in comparison with group 1 and 2. The mean total procedure time and amount of injection were signifi cant difference between three groups. However, the mean submucosal injection time was no signifi cant difference three groups. The en bloc rate of each group was 100% (6/6), 66.7% (4/6), and 40% (2/5) in the group 1, 2, and 3 respectively. There was a perforation during circumferential cutting in group 2. However, there was no immediate bleeding and perforation after EMR Conclusions: In a porcine model, a new submucosal lifting gel seems to improve the en bloc rate for performing EMR-P in large lesion, especially 3 cm in diameter.