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Steroid Hormone Receptor/Reporter Gene Transcription Assay for Food Additives and Contaminants
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  • Steroid Hormone Receptor/Reporter Gene Transcription Assay for Food Additives and Contaminants
  • Steroid Hormone Receptor/Reporter Gene Transcription Assay for Food Additives and Contaminants
저자명
Jeong. Sang-Hee,Cho. Joon-Hyoung,Park. Jong-Myung
간행물명
Journal of toxicology and public health : an official journal of the Korean Society of Toxicology
권/호정보
2006년|22권 1호|pp.15-22 (8 pages)
발행정보
한국독성학회
파일정보
정기간행물|ENG|
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이 논문은 한국과학기술정보연구원과 논문 연계를 통해 무료로 제공되는 원문입니다.
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기타언어초록

Many of endocrine disrupting chemicals induce effects via interaction with hormone receptors and responsive elements in target cells. We investigated endocrine disrupting effects of some food additives and contaminants including BHA, BHT, ethoxyquin, propionic acid, sorbic acid, benzoic acid, CPM, aflatoxin B1, cadmium chloride, genistein, TCDD and PCBs in yeast transformants expressing human steroid hormone receptors along with steroid responsive elements. The response limit of genetically recombinant yeast to $17{eta}$-estradiol, testosterone and progesterone was $1{ imes}10^{-16},;1{ imes}10^{-12};and;1{ imes}10^{-13}M$, respectively. BHT induced weak transcriptional activity in estrogen sensitive yeast, while BHA and sorbic acid interacted weakly with androgen receptor/responsive element. CPM induced transcriptional activities in all types of yeasts sensitive to steroid hormones. Zearalenone and genistein induced high transcriptional activation in estrogen sensitive yeast with relative potencies almost $10^8$ folds lower than $17{eta}$-estradiol. TCDD induced transcriptional activation weakly in estrogen- and progesterone- sensitive yeasts. This study elucidated that recombinant yeast is a sensitive and high-throughput system and can be used for the direct assessment on chemical interactions with steroid receptors and responsive elements. Also, the present study raises the requirement of evaluation on the endocrine disrupting effects of BHT, BHA, sorbic acid, CPM and TCDD for their transcription activity in yeast screening system though weak in intensity.