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이상은,박경호,양남길,안의태,고정식 순천향의학연구소 1995 Journal of Soonchunhyang Medical Science Vol.1 No.2
담소관은 담즙의 성분중 수분과 무기전해질의 분비 및 흡수기능을 가지고 있는데, 총담관을 결찰하여 인위적으로 담즙울체를 일으킨 후 담소관상피세포의 미세구조적변화를 알아보기 위하여 본 실험을 시행하였다. 집토끼의 총담관을 결찰하고 1일, 3일, 5일, 7일, 및 14일이 경과된 후 간조직을 떼어 전자현미경관찰을 위한 통상적인 방법에 따라 고정, 탈수, 포매의 과정을 거친 다음 전자현미경관찰용 절편을 만들어 JEM 100CX Ⅱ 투과전자현미경으로 관찰하여 다음과 같은 결과를 얻었다. 1. 정상 담소관상피세포는 입방형이며, 내강이 커질수록 원주상으로 변하며, 가끔 전자밀도가 높은 세포가 나타났다. 2. 담소관담상피세포의 자유면은 미세융모가 돌출되어 있으며, 드물게 섬모도 관찰되었다. 세포의 위쪽 측면은 폐쇄띠, 부착띠, 부착반을 가진 연접을 이루었으며, 아래 쪽은 미세주름이 나타났고, 기저면은 기저막으로 둘러 싸여 있었다. 3. 총담관결찰 후 담소관은 그 내강이 확장되면서 상피세포의 미세융모의 수는 줄었으며 팽대되었고, 미세사의 증식이 현저하였다. 4. 총담관결찰 후 담소관상피세포 사이의 부착띠가 더욱 발달되는 경향을 보였다. 5. 총담관결찰 후 담소관상피의 기저막은 부분적인 파괴가 관찰되었다. 이상의 결과에서 미세융모의 감소, 내강의 확장 및 기저막의 부분적인 파괴등은 담즙울체로 인하여 담관내의 압력이 증가하므로 나타나는 담소관상피세포의 형태적 변화라 생각된다. The bile ductule is known to have the function of and the secretion and the reabsorption of the bile juice, especially water and inorganic electrolytes. This experiments was performed to study the ultra sturctural changes of the bile ductule of the rabbit liver after common bile duct ligation. Common bilt duct ligation was performed under ether anesthesia. The rabbits were sacrificed on the 1st, 2nd, 3rd, 5th, 7th and 14th day after the operation. Small blocs of livers were fixed 2.5% glutaraldehyde-1.5% paraformaldehyde solution, followed by 1% osmium tetroxide, embedded in araldite mixture, cut with LKB-V ultratome, stained with uranyl acetate- lead citrate, and observed with JEM 100CX II electron microscope. The results were as follows: 1. The cytoplasm of normal bile ductular epithelial cell shows lighter density as compared with that of the of the hepatocyte. Occasional dark cells can be seen between the light ductular cells. 2. On the apical free surface of the normal ductular cells, numerous microvilli project into the lumen, and occasional cilia have been observed. The apical pole of lateral surface exhibits junctional complex, including tight junction, intermediate junction and desmosmes, whereas basal pole have a complex interdigitations. Ductular cell rests on a basal lamina. 3. After the common bile duct ligation, bile ductule showed enlargement of lumen, swelling and reduction of microvilli and proliferation of microfilaments. 4. After the common bile duct ligation, bile ductule showed well developed junctional complex and focally duplicated and thickened basal lamina. From the above results, it was concluded that in the acute cholestasis induced by common bile duct ligation, bile ductular cell shows morphological changes, probably to keep the ductular wall from the increasing intraductular pressure.
이정윤,서정숙,방병호,정은자,강남이,이진영 서울보건대학 1995 서울보건대학 부설 병원경영연구소 논문집 Vol.1 No.1
This study was conducted to evaluate the hospital foodservice management practices in Seoul and to suggest the guideline for the effective foodservice management. Questionnaire survey method were used in this study. Questionnaire were administered to dietitians in twenty hospitals. Data were analyzed for frequency, percentage, χ^(2)-test, and one-way ANOVA using SAS PC Package program. The results were summerized as follows : The number of dietition were less than the required number for efficient foodservice. Centralized foodservice method was adopted in most hospitals and conventional foodservice system was taken in all the hospitals. The space of a kitchen and a dining room were confined and sanitary facilities and working condition revealed problems. Equipped facilities in surveyed foodservice operations were assessed as the insufficient condition, especially, efficient facilities such as a cutting machine were scarecely make up.
온쓸개관을 묶은 집토끼 위날문점막의 미세구조 연구. : Ⅰ. 날문부 표면점액세포 Ⅰ. Pyloric Surface Mucous Cell
박경호,오승종,고정식,안의태,박대균,정은주 순천향대학교 교수학습개발센터 2004 Journal of Soonchunhyang Medical Science Vol.10 No.3
The purpose of this study was to examine the ultrastructural characteristic of the normal pylorus mucosa, and their structural changes induced by the ligation of common bile duct of the rabbit. Common bile duct ligation probably causes the dysfunction of the pyloric surface mucous cells that results in delayed mucous formation and secretion, but recovered mucous secretory activity is recovered on the late stages.
Green, Joel D.,Evans II, Neal J.,Jørgensen, Jes K.,Herczeg, Gregory J.,Kristensen, Lars E.,Lee, Jeong-Eun,Dionatos, Odysseas,Yildiz, Umut A.,Salyk, Colette,Meeus, Gwendolyn,Bouwman, Jeroen,Visser, Ruu IOP Publishing 2013 The Astrophysical journal Vol.770 No.2
<P>We present 50-210 mu m spectral scans of 30 Class 0/I protostellar sources, obtained with Herschel-PACS, and 0.5-1000 mu m spectral energy distributions, as part of the Dust, Ice, and Gas in Time Key Program. Some sources exhibit up to 75 H2O lines ranging in excitation energy from 100 to 2000 K, 12 transitions of OH, and CO rotational lines ranging from J = 14 -> 13 up to J = 40 -> 39. [O I] is detected in all but one source in the entire sample; among the sources with detectable [O I] are two very low luminosity objects. The mean 63/145 mu m [O I] flux ratio is 17.2 +/- 9.2. The [O I] 63 mu m line correlates with L-bol, but not with the time-averaged outflow rate derived from low-J CO maps. [C II] emission is in general not local to the source. The sample L-bol increased by 1.25 (1.06) and T-bol decreased to 0.96 (0.96) of mean (median) values with the inclusion of the Herschel data. Most CO rotational diagrams are characterized by two optically thin components (< N > = ( 0.70 +/- 1.12) x 10(49) total particles). N-CO correlates strongly with L-bol, but neither T-rot nor N-CO(warm)/N-CO(hot) correlates with L-bol, suggesting that the total excited gas is related to the current source luminosity, but that the excitation is primarily determined by the physics of the interaction (e.g., UV-heating/shocks). Rotational temperatures for H2O (< T-rot > = 194 +/- 85 K) and OH (< T-rot > = 183 +/- 117 K) are generally lower than for CO, and much of the scatter in the observations about the best fit is attributed to differences in excitation conditions and optical depths among the detected lines.</P>
Characteristics of East Asian Passiflora virus isolates from passion fruits in Korea
Jeong-Eun Kim,Su-Bin Hong,Hyeon-Yong Choi,Mikyeong Kim,E-Seul Baek,Hae-Ryun Kwak,Min-kyeong Choi,Hyo-jeong Kim,Hyo-jeong Kim,Hyo-Jung Kang,Jong-woo Han,Heon-sub won,Ji-gwang Kim,Hyeon-ju Lee,Chang-Seo 한국농약과학회 2018 한국농약과학회 학술발표대회 논문집 Vol.2018 No.10