내시경적 점막절제술로 치험한 식도 과립상 세포종 1례

강혁주,김성욱,최석진,이중현,장재식,서영범,윤병구,박건욱,김성자,김용섭,강승완,이구,양창헌,이창우,김욱년,이광헌,서정일 동국대학교 의학연구소 2000 東國醫學 Vol.7 No.-

과립상 세포종은 Schwann 세포 기원으로 생각되며 인체에 비교적 드물게 발생한다. 과립상 세포종은 전신 어느 곳에서나 발견될 수 있으나 주로 혀, 구강, 피부 혹은 유방 등에서 호발하며 드물게 위장관에서 발견된다. 위장관에서는 식도에서 가장 호발하며 다음으로 위, 대장 순이다. 과립상 세포종은 대부분, 특히 위장관에서는 양성이며 소수의 악성 병변이 보고되었다. 이러한 이유와 함께 수술 전의 진단이 어렵기 때문에 과립상 세포종에 대한 근본적인 치료는 현재까지 외과적 절제술이다. 최근에 시도되는 치료방법들로는 내시경적 레이저 치료, 용종절제술, 내시경적 점막 절제술 등이 있다. 저자들은 상부 소화관 내시경검사를 시행하여 식도 과립상 세포종을 진단하고 내시경적 점막 절제술을 시행하여 합병증 없이 퇴원하여 현재 재발없이 경과 관찰중인 1례를 경험하였기에 보고하는 바이다. Granular cell tumors, which occur infrequently, are probably of Schwann cell origin. They can occur almost anywhere in the body but usually affect the tongue, oral cavity, skin, or breasts and are rarely found in the gastrointestinal tracts. The esophagus is the most frequent gastrointestinal site, followed by the stomach and the colon. Granular cell tumors are generally benign, especially in the gastrointestinal tract, some malignant lesions have been reported. For this reason, and also because preoperative diagnosis is difficult, the standard treatment for granular cell tumor has until now been surgical excision. In recent years, other therapeutic methods is endoscopic laser therapy (ELT), polypectiomy, endoscopic mucosal resection (EMR). We report a case of esophageal granular cell tumor which was diagnosed by an endoscopy and managed using an endoscopic mucosal resection without complication.

세침 흡입 생검으로 진단된 간의 혈관근지방종 1 예

이경아,유은실,민영일,김해련,심기남,정훈용,양석균,홍원선,박의련,이문규 대한소화기학회 1999 대한소화기학회지 Vol.33 No.6

Hepatic angiomyolipoma is a rare benign tumor of the liver composed of blood vessel, smooth muscle cells, fat and myelocomponent. The preoperative diagnosed of the lesion is important because of its therapeutic implications. Radiologic findings are not specific because the composed elements are variable in proportion and distribution. Thus, the findings at computed tomography, ultrasono graphy and magnetic resonance imaging may be only suggestive and its definitive diagnosed requires histologic confirmation. We experienced a case of hepatic angiomyolipoma in patient with chronic hepatitis diagnosed preoperatively by fine-needle aspiraton biopsy under ultrasound guidance. To our knowledge, this is the first case of hepatic angiomyolipoma diagnosed preoperatively in Korea. We report it with review of literatures.

알로에를 첨가한 베이글의 물리화학적 특성

이혜양,서석출 한국식품영양학회 2002 韓國食品營養學會誌 Vol.15 No.3

이 연구는 알로에가 첨가된 베이글의 물리화학적 특성을 조사하기 위해서 실시되었다. 관능검사 결과 알로에를 밀가루 무게의 1%보다 많이 첨가할 시 패널요원은 유의적으로 쓴맛을 느끼는 것으로 나타나서, 제품에 1% 이하의 알로에 첨가가 바람직한 것으로 나타났다. 밀가루의 이화학 검사 결과 알로에를 1%까지 첨가함에 따라서 반죽의 회분 함량은 점차적으로 증가했지만, 베이글 제품의 부피에는 영향이 없었다. 알로에를 첨가할 시, 제품의 물리화학적 특성 변화는 다음과 같다. Farinograph 결과 특히 가스 안정성이 높아지는 것으로 나타났다. 연화도가 감소한다는 것은 반죽의 물성이 증가한다는 의미인데, 이는 반죽이 탄력성이 있고 제빵성이 좋아진다고 해석할 수 있다. 그러나 Extensograph 결과 반죽의 신장도가 감소하는 것으로 나타났는데, 이는 발효시간을 늘리면 극복할 수 있겠다. Viscograph 결과 최고 점도가 감소하였는데, 이는 굽는 시간을 늘려줌으로써 개선할 수 있겠다. 이상의 결과, 알로에를 1%까지 첨가한 베이글은 알로에의 건강효과를 부여하며, 반죽의 가스 안정성을 높여 제빵성을 향상시키는 것으로 나타났다. This study was carried out to investigate the physicochemical properties of aloe added bagel. The result of sensory evaluation showed that addition of the aloe powder above 1% was not advisable because of its bitterness. Freeze dried aloe powder (0, 1%, 0.5%, 1!) was added to bagel and chemical compositions of doughs were evaluated. The ash content of control was 0.444% and each of the samples (0.1~, 0.5%, 1%) was 0.472%, 0.553%, and 0.633% respectively. Although the ash content of dough increased gradually according to the addition of aloe powder, the volume of the bagel was not affected much. As the amount of the aloe powder was changed, the water absorption rate, the extensibility, and the viscosity of the dough were affected. The physical characteristics of dough were as follow: 1) The water absorption rate of the dough was gradually decreased from 65.3% at control, to 65.2% at 0.1%, 64.2% at 0.5%, 63.5% at 1% each by farinograph. 2) The extensibility of the dough was significantly declined at 1% by extensograph; from 20.7cm at control, to 20.3cm at 0.1%, 18.8cm at 0.5%, and 16.4cm at 1% each . 3) The top viscosity of the dough was sharply declined between 575 B.U at control and 515 B.U at 0.1%, afterwards, 480 B.U at 0.5%, 475 B.U at 1% each by viscograph. Considering the result of the test, aloe added bagel could promote physicochemical properties of dough as well as health effects.

産業廢水 處理에 關한 硏究

李炳甲,朴良元,金亨錫 카톨릭대학 산업의학 쎈타 산업의학연구소 1971 韓國의 産業醫學 Vol.10 No.3

The studies on the actual state of poilution components of various indrstrial wastes were conducted on order to procide the methods for the economic and efficient treatment of industrial waste water for the prevention of public nuisance and some laboratory studies were carried out on the treatment of polluted water using sand filter bed, aerator and sedimentation method. The results obtained are as follows: 1. The results of analysis of industrial waste water showed high pollution of B.O.D. with 105.0ppm and Chloride with 47.0 ppm in Textile Factories. 2. The results also showed high pollution of solids with 2,150 ppm in Lumbering Industries. 3. Because of the serious problem on the public water resources due to the discharge of tremindous amount of industrial waste water, the best and economic method on the treatment of indrstrial waste water from large scale of factories seems to be the Sand Filtration Method.(Removal rate for overall was 60.4%)

건축물 외장의 배색 유형에 관한 연구 : 광주광역시 금남로 가로 건축물을 중심으로

이청웅,최석창,김양석,하주아 조선대학교 국토개발연구소 1997 국토개발연구 Vol.17 No.1

Since the urban environmental colors as a starting point of the research on environmental colors of the building depend on the environmental characteristics of the complex and various physical and social culture to improve the visual order of the urban landscape and don't establish its system and order, the importance of the visual effects of urban environment has been suggested through the experimental and theoretical research. It is to want to abstract the factor of surface pattern from the side of two dimentional physical factor and perceptual of architecture surface construction by concreting calssifing the criterion of analysis in to rank phase, perceptual concept, finding out basic composition factor of shape and opening architecture surface construction of design. To suggest the material of mere practical color design, this study examines the research of exterial colors of the building on the street, prescribes the characteristics of the building with other environmental factors which compose the colors and aims at suggesting the actual color design materials making the trend of colors the object of the research.

교감신경자극시 Norepinephrine에 대한 신혈관 반응에 변화

이석호,민영기,양훈모 순천향의학연구소 2002 Journal of Soonchunhyang Medical Science Vol.8 No.1

To determine to effect of angiotensin Ⅱ(ANG Ⅱ)-induced hypertension on the renovarcular respones to norepinephrine (NE), six anesthetized dogs instrumented for monitoring of renal blood flow (RBF) were subjected to step increases every 2 minutes in the rate of norepinephrine infusion into the renal artery during 1) control condition(C), 2) servocontrol of renal arterial pressure (RAP) at levels expected to be achieved during acute captopril administration(C+S), 3) acute captopril administration(CEI), 4) angiotensin Ⅱ infusion simultaneously with captopril at concentrations which restored RAP toward control (CEI+A), and 5) servocontrol of RAP during captopril and angiotensin Ⅱ (SEI+A+S). Whether the plasma levels of ANG Ⅱ were allowed to increase(C, C+S) or not (CEI+A, CEI+A+S) with NE infusion, there were no differences in RBF respones to NE infusion between C and C+S and between CEI+A and CEI+A+S, which implies that RAP does not play an important role in modulating the renovascular response to NE. However, when captopril was administered without ANG Ⅱ replacement (CEI), RBF induced severe renal ischemia at much lower rates of NE infusion than occurred when the sufficient concentration of ANG Ⅱ were present in the plasma. Since this enhanced sensitivity to NE did not occur at RAP's lower than those achieved during acute captopril administration once ANG Ⅱ was present in the plasma in sufficient concentrations, it is likely that ANG Ⅱ exerts a protective effect on the kidney during renal adrenergic stimulation through a mechanism other than increasing systemic arterial pressure.

온라인 교육 사이트의 교육 환경 및 효과 분석

이용주,문양세,김혜숙,김진호 강원대학교 정보통신연구소 2008 정보통신논문지 Vol.12 No.-

In recent years, people are gradually interested in the Internet-based educational programs (also known as e-learning and cyber lectures), and online education is now widely used in various educational areas. In this paper, considering the environment and achievement aspects we analyze online education by dividing it into public education and private education. We analyze the online education as the following steps. First, we review the recent online educational methods by comparing them to the traditional offline educational ones. Second, we compare EBS, a representative public educational site, and Megastudy, a representative private educational site, by investigating their operation, human, economic, hardware, and software resources. Third, we compare EBS and Megastudy in aspects of environment and achievement through a survey on high-school students after providing their sample lectures. Analytical results show that the students of using Megastudy get good grades compared with those of using Megastudy. This is because Megastudy provides the specialized lectures that focus on obtaining high scores in examinations. We believe that our research results will provide important directions in improving the quality of online educational sites.

ACL 손상환자의 보행형태 분석

이경일,박양현,김용숙 朝鮮大學校 스포츠科學硏究所 2004 스포츠科學硏究 Vol.15 No.-

By analyzing on walking patterns of patients who have damaged ACL, we intended to use this study as data for several walking researches. Followings are the result of angles and angular velocities that are variables in the study. 1. The angle of ankle showed flection of 91.28˚ and 93.54˚ at the point E2 (opposite toe off) and at the point of E3(opposite heel contact). The angle of normal left foot was flection of 96.66˚ and 92.30˚ when it was at the point of E1(heel strike) and E2(opposite toe off). 2. The angle of knee showed the biggest curve of 121.07˚ at the point of E2(opposite toe off ) and there was a significant difference with the angle of left knee. 3. The angle of hip joint was the biggest numerical value extension, 49.93˚ at the point of E1(heel strike ) and at the point of E3(opposite heel contact), it showed the curve of 38.43˚. We could see the significant difference at normal left hip joint but at the point of E3(opposite heel contact) the numerical value of the curve appeared to be 89.49˚. 4. The angular velocity of ankle was the biggest as 67.33 at the point of E1(heel strike) and simultaneously, the angular velocity of left ankle appeared to be the smallest as -19.80˚. 5. The angular velocity of knee was -78.28 at the point of E2 (opposite toe off) and at the same point, the velocity of normal left knee was 46.68˚ which was the biggest numerical value. 6. The angular velocity of hip joint were -7.18˚ and -58.03˚ at the point of E1(heel strike) and E2(opposite toe off). At the same point, the velocity of left hip joint showed bigger number of 27.45˚ and -6.11˚.

제4경추의 형태와 초경을 통한 성숙지표에 관한 연구

이규홍,황용인,김윤지,박양호,백승학,차경석 대한치과교정학회 2008 대한치과교정학회지 Vol.38 No.1

본 연구는 측모 두부 규격 방사선사진을 이용하여 성장 중인 아동의 제4경추 형태를 경추 몸체부 하연의 만곡 정도에 따라 분류하고 초경의 시기와 수완부 골 성숙 단계를 평가하여, 성장 중인 아동의 골격적 부정교합의 진단 및 악정형 치료를 위한 성장 시기 평가에 제4경추의 형태 변화가 진단의 참고자료로 활용될 수 있는지를 연구하였다. 11-14세 여자 환자 중, 같은 날짜에 촬영된 측모 두부 규격 방사선사진과 수완부 방사선사진이 모두 있는 81명을 대상으로 환자의 측모 두부 규격 방사선사진상 제4경추 몸체부 하연의 만곡 정도에 따라 세 그룹으로 분류하였다. (Group A - 제4경추 몸체부 하연의 만곡 정도가 1.05 mm 이하, Group B -제4경추 몸체부 하연의 만곡 정도가 1.05- 2.07 mm 사이, Group C -제4경추 몸체부 하연의 만곡 정도가 2.07 mm 이상)세 그룹에서 각각 제4경추 몸체부의 수직 길이, 수평 길이, 수직/수평 비율, 초경의 시기, 수완부 골 성숙 단계를 측정한 결과 다음과 같은 결론을 얻었다. 평균 수완부 골 성숙 단계는 Group A가 SMI 5.67 ± 2.57단계, Group B는 SMI 8,73 ± 2.41 단계, Group C는 SMI 10.00 ± 1.47단계로 나타났다. GroupA에서 Group B, Group C로 갈수록 제4경추의 수직 길이, 수평 길이, 수직/수평 비율, 수완부 골 성숙 단계에 있어서 각각 유의하게 더 큰 값을 보였다. 본 연구대상 아동의 평균 초경 시기는 11.64 ± 0.92세를 보였다. 제4경추 몸체부 하연의 만곡 정도, 수직 길이, 수평 길이, 수직/수평 비율은 수완부 골 성숙 단계와 각각 서로 유의한 양의 상관관계를 나타냈다. 초경을 경험한 그룹이 초경을 경험하지 않은 그룹에 비해 제4경추의 수직 길이, 수평 길이, 수직/수평 비율, 수완부 골 성숙 단계에 있어서 유의하게 큰 값을 보였다. 연구 결과 측모 두부 규격 방사선사진상 제4경추 하연의 만곡 깊이가 2.07 mm 이상인 경우 성장의 완료 단계에 가까운 시기로 나타나 이 시기의 악정형적 치료는 큰 효과를 얻을 수 없을 것으로 사료된다. Objective: This study analyzed the morphologic changes of the fourth cervical vertebra body to determine the skeletal age of orthodontic patients during growth. Methods: Eighty-one female patients aged from 11 to 14 who had cephalograms taken on the same day were examined. The subjects were divided into three groups depending on the depth of the concavity of the lower border of the fourth cervical vertebra (Group A: less than 1.05 mm, Group B: 1.05 - 2.07 mm, Group C: greater than 2.07 mm). Menarcheal timing, SMI stage, length, width and ratio of length and width of the fourth cervical vertebra body were analyzed and the following results were obtained. Results: The average SMI stage of group A,B and C were 5.67 ± 2.57, 8.73 ± 2.41, and 10.00 ± 1.47, respectively. Length, width, ratio of length and width, and SMI stage were greater in group B than group A and in group C than group B. Mean menarcheal timing was 11.64 ± 0.92 years. Concavity depth, length, width, ratio of length and width showed a significant positive correlation with SMI stage, especially with the concavity depth. Conclusion: The results of this study propose a simple method for determining the timing of orthopedic treatment by measuring the concavity depth of the fourth cervical vertebra on the cephalogram.

엔지오텐신이 Norepinephrine의 신혈관 반응에 미치는 영향

이석호,김종규,양훈모,민영기,임한혁 순천향의학연구소 1999 Journal of Soonchunhyang Medical Science Vol.5 No.2

To determine the effect of angiotensin Ⅱ(ANG Ⅱ)-induced hypertension on the renal hemodynamic response of norepinephrine(NE), mongrel dog instrumented for checking of renal blood flow(RBF) was followed as the step increases every 2 minutes in the rate of norepinephrine infusion into the renal artery during 5 conditions (C : control, C+PD : control+pressure decompression of aorta, ACEI : angiotensin converting enzyme inhibitor, ACEI+ANG Ⅱ : angiotensin converting enzyme inhibitor+ANG Ⅱ, ACEI+ANG Ⅱ+PD : angiotensin converting enzyme inhibitor+ANG Ⅱ+pressure decompression of aorta) Without relation of increase (C, C+PD) or decrease (ACEI+ANG Ⅱ, ACEI+ANG Ⅱ+PD) of the plasma ANG Ⅱ level when NE is infused into vessel, there were no differences in RBF response to NE infusion between C and C+PD and between ACEI+ANG Ⅱ and ACEI+ANG Ⅱ+PD, which implies that renal arterial pressure(RAP) does not play an important role in controling the renal hemodynamic response to NE. When renin angiotensin system was blocked by captopril without adding to ANG Ⅱ supply (ACEI), RBF can be severe decreased to approximately 90% at much lower rates of NE infusion than occurred when the sufficient concentration of ANG Ⅱ were present in the plasma. As the increased sensitivity of NE did not occur at lower renal arterial pressure, when ANGⅡ was present in the plasma in sufficient concentrations, it seems that protective effect on renal function is possible by ANGⅡ during renal sympathetic stimulation.