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흰쥐 자궁 및 착상에 있어서 Tamoxifen과 성스테로이드 호르몬의 상호관계
한호재,유규연,권종국,양일석,Han, H.J,Yoo, K.Y.,Kwun, J.K.,Yang, I.S. 대한생식의학회 1988 Clinical and Experimental Reproductive Medicine Vol.15 No.2
These studies were undertaken to examine the relationship between tamoxifen and sex steroid hormones in rat uterine morphology and the effect of tamoxifen on sex steroid hormone levels, implantation and myometrial contraction. The results obtained were as follows : 1) The increase in height of the luminal epithelium caused by tamoxifen treatment was blocked by progesterone. The increase in height of luminal epithelium caused by $estradiol-17{\beta}$ treatment was blocked by tamoxifen. 2) When a single dose of tamoxifen(10, 20, $40{\mu}g$) was given on Day 2 of pregnancy, implantation was prevented. Plasma $estradiol-17{\beta}$ level fell in a dose-dependent manner but plasma progesterone level was constant. 3) In vitro, tamoxifen decreased rat uterine contractility in a dose-dependent manner.
H. Han(한호현),Y. Park(박예진),Y. Choi(최유미),U. Yong(용의중),B. Kang(강병민),W. Shin(신우정),S. Min(민소연),H. J. Kim(김현중),J. Jang(장진아) Korean Society for Precision Engineering 2021 한국정밀공학회 학술발표대회 논문집 Vol.2021 No.11월
Intestinal disease is a global health problem affecting millions of people. To investigate therapeutic compounds and unveil the mechanisms of the diseases, numerous in vitro intestine models have been developed as alternatives to animal surrogates. Intestinal organoids have shown that they can emulate major human physiology, but it is difficult to control their growth and maturation. On the other hand, microphysiological systems (MPSs) have been enabled to recapitulate intestinal tissues in vitro and its ecosystem with commensal microbiomes, their geometrical complexity is limited to 2D or 2.5D architectures. For this reason, 3D bioprinting has gained growing interest since it can be used to mimic 3D complex physiology such as cell-cell or cell-matrix interaction. Here, we bioprinted a tubular intestine model using a colon-derived decellularized extracellular matrix (Colon dECM). We observed that Colon dECM promotes spontaneous maturation of intestinal epithelial cells, especially its enteroendocrine functions. Furthermore, the 3D bioprinted tubular model with a hollow lumen showed cellular maturation and self-organization demonstrating distinctive tissue morphogenesis. We envisage this advanced in vitro intestine model as a platform to study intestinal morphogenesis, disease, and treatments.
한호경(H . K . Han),박찬교(C . K . Park) 한국수소및신에너지학회 1995 한국수소 및 신에너지학회논문집 Vol.6 No.2
Activation behavior, hydriding rate and disintegration were tested for hydrogen storage alloy particles fixed in an adhesive after treating with inorganic solution. Commertial adhesive as a binder was used. Chemical- treated particles showed the best characteristics for activation and a little effect of prevention the break down of the powders themselves after several repeated operations. Furthermore activation characteristics were found to show a similar trend to chemical-treated powders even in the fixed one with an adhesive, except for a slight decrease in reaction velocity.
민석기 ( S. K. Min ),한호성 ( H. S. Han ),김영우 ( Y. W. Kim ),이선영 ( S. Y. Yi ),유권 ( K. Yu ),이남준 ( N. J. Yi ),김유진 ( E. G. Kim ),최용만 ( Y. M. Choi ) 대한소화기학회 2002 대한소화기학회 춘계학술대회 Vol.2002 No.-
〈목적〉 총수 담관 결석의 치료 방법은 내시경적 괄약근 절개를 이용한 결석의 제거나 주된 치료방법이었으나 복강경 수술 방법이 등장하면서 담낭 절제를 포함하여 총수담관 결석을 동시에 치료하는 방법이 대안을 제시되고 있다. 환자의 상황에 따라 이들의 치료 방법이 갖는 장점과 단점을 고려하여 가장 적절한 치료 방법을 적용하는 것이 중요한 것이다, 연구의 목적은 총수 담관 결석의 치료 방법으로 복강경 수술의 적응증과 제한점을 제시하고자 하는 것이다. 〈방법〉
한국 밀식사과원의 정지전정에 따른 수체생장과 생산성 및 경영효율 비교
정혜웅,김경훈,송태영,홍성일,한호균,김귀권,신종협,여덕환,김병철,박준권,Jung, H.W.,Kim, K.H.,Song, T.Y.,Hong, S.I.,Han, H.K.,Kim, K.K.,Shin, J.H.,Yeo, D.H.,Kim, B.C.,Park, J.K. 국립한국농수산대학교 교육개발센터 2017 현장농업연구지 = Journal of practical agricultural resear Vol.19 No.1
The present study conducted a comparison on tree growth and productivity of high-density apple orchards by several orchard management systems: making scaffolds by heading-back and thinning out pruning (T-1), maintaining scaffolds upward and bearing shoots downward (T-2), managing branches slightly upward without heading-back (T-3), keeping leaders downward and shoots pending (T-4), maintaining leaders high and branches horizontal with severe pinching (T-5), making leaders with lower branches vigorous and upper shoots pending (T-6), and controlling very high planting density with bending branches (T-7). In conclusion, the orchards of (T-5) and (T-6) management systems showed a superior performance in controlling tree growth, productivity, and quality of fruits. Also, superior management efficiency was obtained in the orchards of (T-5) and (T-6).
이남준 ( N. J. Yi ),한호성 ( H. S. Han ),김영우 ( Y. W. Kim ),민석기 ( S. K. Min ),김유진 ( E. G. Kim ),최용만 ( Y. M. Choi ),이선영 ( S. Y. Yi ),유권 ( K. Yu ),이한주 ( H. C. Lee ) 대한소화기학회 2002 대한소화기학회 춘계학술대회 Vol.2002 No.-
<목적> 간경변에 따른 위정맥류 출혈은 재출혈과 대량 출혈의 빈도가 높고 비관혈적 중재술이 어려워 수술적 치료를 요하는 경우가 많다. 따라서 빠른 수술 결정과 효과적인 수술 방법이 요구된다. 저자들은 수술 후 간 부전증의 빈도가 낮고 재출혈이 적은 새로운 방식의 비단락 술식을 적용하여, 유용성을 검증하고 수술 후 환자의 사망에 영향을 미치는 인자들을 분석하고자 하였다. <방법> 1994년 7월부터 2001년 7월까지 이대목동병원 외과에서 간경변에 따른
한우의 혈액형 분류를 위한 표준혈청의 생산 및 혈액형 분류
권종국(J . K . Kwun),이근상(K . S . Lee),김희석(H . S . Kim),양보석(B . S . Yang),신형두(H . D . Shin),이완(W . Lee),이장헌(J . H . Lee),한호재(H . J . Han) 한국축산학회 1988 한국축산학회지 Vol.30 No.7
These experiments were carried out to establish the base of blood typing in Korean Native Cattle. The isoimmunization in cattle was performed to produce standard antisera for blood typing. Fifty-six kinds of standard reagent standardized by International Society for Animal Blood Group Research donated from Blood Typing Laboratory, Livestock Association of Japan, INC. were used as the reference reagents in these experiments. 1. Seven kinds of standard reagents, B and D of B system, R₂ and W of C system, U` and S of S system, Z of Z system, for blood typing were produced in this laboratory by isoimmunization and adsorption methods using ninety-five cattle. 2. The appearance frequencies of antigenic factors of RBC of two hundred and thirteen Korean Native Cattle were different from European cattles. Also, considerable frequency differences between Korean Native Cattle and the other kinds of East Asian tattles were recognized. 3. The gene frequencies of serum biological polymorphism in two hundred and thirteen Korean Native Cattle were as follows: A1bA: 0.974, A1bB: 0.026 in albumin locus, AmB: 0.306, AmC: 0.694 in amylase locus, CaF: 0.067, CaS: 0.933 in carbonic anhydrase locus and CpF: 0.340, CpS: 0.645, CpI: 0.015 in ceruloplasmin locus.