• Title/Summary/Keyword: Diethylstilbestrol

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어류의 알과 난황 자어의 생존에 미치는 DDT의 독성

  • 전중균;전미정;이미희;임한규;이종관
    • Proceedings of the Korean Society of Fisheries Technology Conference
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    • 2000.10a
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    • pp.156-157
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    • 2000
  • 내분비계 장애를 일으킬 수 있다고 추정되는 물질로는 각종 산업용 화학물질, 살충제와 제초제 등의 농약류, 유기 중금속류, 소각장의 다이옥신류, 식물에 존재하는 식물성 에스트로겐 (phytoestrogen) 등의 호르몬 유사물질, DES (diethylstilbestrol) 등의 합성 에스트로겐류 및 기타 식품, 식품첨가물 등이 포함된다. 이와 같은 물질들은 생물들에게 독성을 나타내므로 많은 나라들은 그 사용을 금지하거나 제한하고 있는 실정이다. (중략)

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Evaluation of Bisphenol a Induced Apoptosis in Sertoli Cell-lines (Bisphenol A에 의한 Sertoli 세포주 내 세포자연사 검정)

  • Kim, Ji-Hyang;Kim, Jin-Kyu;Do, Byoung-Rok;Lee, Chang-Joo;Yoon, Yong-Dal
    • Development and Reproduction
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    • v.9 no.2
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    • pp.115-121
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    • 2005
  • The present report aimed at evaluating the effect of bisphenol A(BPA) and diethylstilbestrol(DES) on Leydig or Sertoli cell-lines. To identify the differences in the susceptibility to BPA upon different cell-types, assay of the cell viability was done on TM3(Leydig cells) and TM4(Sertoli cells) cell-lines. The result indicates that Sertoli cells are more sensitive to low dose of BPA than Leydig cells. Also, the BPA- or DES-treated Sertoli cells showed a reduction of phospholipase D(PLD) activity identically. According to the confirmation of the mRNA expression of fas receptor and fas ligand in the BPA-treated cells, fas/fasL system activated by BPA will deliver the apoptosis signal onto Sertoli TM4 cells. However, Fas/FasL system was not activated in the DES-treated cells unlike the BPA-treated cells.

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Primary Non-clear-cell Adenocarcinoma of the Vagina -Report of a Case- (질에 발생한 원발성 비투명세포선암 -1예 보고-)

  • Jee, M.K.;Choi, Y.I.;Yang, K.W.;Kim, B.K.;Kim, S.M.
    • The Korean Journal of Cytopathology
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    • v.1 no.1
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    • pp.103-110
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    • 1990
  • A case of primary non-clear-cell adenocarcinoma of the vagina is reported occurring in a 65-year-old woman without exposure to diethylstilbestrol (DES) in utero. The adenocarcinoma did not appear to be associated with vaginal adenosis. It lacked clear cell component and interestingly composed of columnar epithelial cells of endocervical-type. Cytologically round to oval nuclei revealed one or more small nucleoli and fine granular chromatin pattern. Cytoplasm was plump, faintly basophilic and homogeneously stained. Histologically well differentiated columnar epithelial cells were arranged on trabecular pattern mainly, and also occasional glandular lumina and small solid sheets were found. Mitoses were hardly found.

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Effect of Genotoxicity or Carcinogenecity Chemicals on the ROS Production (유전독성, 발암성 화학물질이 ROS 생성에 미치는 영향)

  • Go, Seo-Youn;Sheen, Yhun-Yhong
    • Environmental Analysis Health and Toxicology
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    • v.23 no.1
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    • pp.23-32
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    • 2008
  • In the present study, ROS detection of L5178Y cells that were treated with twenty test compounds in order to find out hydrogen peroxide ($H_2O_2$) induction for genotoxicity and carcinogenic toxicity. Twenty test compounds were consist of four classes, such as genotoxic carcinogens, genotoxic noncarcinogens, nongenotoxic carcinogens, and nongenotoxic noncarcinogens. Genotoxic carcinogens are 1,2-dibromoethane, glycidol, melphalan, diethylstilbestrol and urethane. Genotoxic noncarcinogens are 8-hydroxyquinoline, emodin, acetonitrile and diallylphthalate, L-ascorbic acid. Nongenotoxic carcinogens are methyl carbamate, O-nitrotoluene, 1,4-dioxane, tetrachloroethylene and 2,3,7,8-tetrachlorodibenzo-p-dioxin. And nongenotoxic noncarcinogens are D-mannitol, 1,2-dichlorobenzene, caprolactam, bisphenol A and chlorpheniramine maleate.

Effects of Gestational Exposure to Di(n-butyl)phthalate, flutamide and diethylstilbestrol on Male Reproductive Development in Rats

  • Shin JaeHo;Moon HyunJu;Kim TaeSung;Lee SuJung;Kang IlHyun;Kim InYoung;Bae Hoon;Ryu SungYeoul;Whang SungJo
    • Proceedings of the PSK Conference
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    • 2003.04a
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    • pp.187-187
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    • 2003
  • The aims of present study were to compare the effects of in utero exposure to diethylstibestrol (DES), di(n-butyl)phthalate (DBP) and flutamide on the development of reproductive organs and to investigate the specific mechanisms of these abnormalities in the male reproductive system.During gestation days 10-19, pregnant Sparague-Dawley (SD) female rats were administered orally with corn oil (control), DES (25, 50, or 100 ${\mu}$/kg/day), (omitted)

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STUDY OF RESVERATROL AND ITS DERIVATIVES ON THE REGULATION OG GENE EXPRESSION IN MCF-7 CELLS TRANSFECTED WITH EITHER pERE-LUC OR phCYP1A1-LUC

  • Joung, Ki-Eun;Kim, Yeo-Woon;Sheen, Yhun-Yhong
    • Proceedings of the Korean Society of Applied Pharmacology
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    • 2001.11a
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    • pp.111-111
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    • 2001
  • Resveratrol (trans-3,4',5-trihydroxystilbene), which is a polyphenolic compound found in a variety of plants such as grapes and wine, has been reported to have a variety of anti-inflammatory, anti-platelet, and anti-carcinogenic effects. Recently resveratrol of was reported to serve as an estrogen agonist in MCF-7 cells Based on its structural similarity to diethylstilbestrol, a synthetic estrogen, we examined whether resveratrol and its derivatives might be estrogenic using stable MCF-7-ERE cells. Resveratrol functioned as a superagonist at high concentrations (i.e., produced a greater maximal transcriptional response than estradiol) Among the resveratrol derivatives, 10 compounds showed significant estrogenic activity.

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STUDY OF RESVERATROL AND ITS DERIVATIVES ON THE REGULATION OF GENE EXPRESSION IN MCF-7 CELLS TRANSFECTED WITH EITHER pERE-LUC OR pCYP1A1-LUC

  • Joung, Ki-Eun;Kim, Yeo-Woon;Sheen, Yhun-Yhong
    • Proceedings of the Korean Society of Toxicology Conference
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    • 2001.10a
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    • pp.161-161
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    • 2001
  • Resveratrol (trans-3, 4', 5-trihydroxystilbene), which is a polyphenolic compound found in a variety of plants such as grapes and wine, has been reported to have a variety of anti-inflammatory, anti-platelet, and anti-carcinogenic effects. Recently resveratrol was reported to serve as an estrogen agonist in MCF-7 cells Based on its structural similarity to diethylstilbestrol, a synthetic estrogen, we examined whether resveratrol and its derivatives might be estrogenic using stable MCF-7-ERE cells. (omitted)

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Determination of Prednisolone in Tablets by High Performance Liquid Chromatography (HPLC를 이용(利用)한 제제중(製劑中) 프레드니솔론의 함량균일성시험(含量均一性試驗)에 관한 연구(硏究))

  • Kim, Hyung-Kook;Lee, Cheol-Kyu;Ko, Geun-Il;Kim, Jae-Back
    • Journal of Pharmaceutical Investigation
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    • v.13 no.2
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    • pp.59-65
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    • 1983
  • A convenient high performance liquid chromatographic method for the quantitative determination and content uniformity of prednisolone in tablets is described. The prednisolone was chromatographed using a ${\mu}-Bondapak\;C_{18}$ column and the eluent 70% MeOH at a flow rate 1. 0ml/min. Diethylstilbestrol was used as an internal standard. The UV detector response at 254nm was linear over a range of $10{\sim}60{\mu}g/ml$ under conditions of the analysis. Reproducibility studies gave relative standard deviations of $0.3{\sim}0.5%$.

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