• 제목/요약/키워드: food mutagen

검색결과 540건 처리시간 0.022초

L-Ascorbic Acid and arsenic Trioxide Exert the Synergistic Effect to Induce the Growth Arrest and the Apoptosis of Human Acute Promyelocytic Leukemia, HL-60 Via Modulating Redox Status, Mapk Pathway and Apoptosis-Related Factors

  • Han, Seong-Su;Lee, Sook J.;Chung, Seung-Tae;Juno H. Eom;Surh, Young-Joon;Park, Hye K.;Park, Mary H.;Kim, Won S.;Kim, Kihyun
    • 한국환경성돌연변이발암원학회:학술대회논문집
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    • 한국환경성돌연변이발암원학회 2001년도 Korean Environmental Mutagen Society
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    • pp.145-146
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    • 2001
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Transcription factor NF-kB as a potential biomarker of oxidative stress to evaluate antioxidant effects

  • Berg, Robin van den;Sierksma, Aafje;Hendriks, Henk F.J.;Vaes, Wouter H.J.
    • 한국독성학회:학술대회논문집
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    • 한국독성학회 2003년도 춘계학술대회 논문집
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    • pp.25-26
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    • 2003
  • There is increasing interest in the involvement of transcription factors, such as of the transcription factor NF-kB (nuclear factor-kB), in the pathogenesis of various diseases. The involvement ofNF-kB is especially of interest as it is activated by oxidative stress and its activation can be modulated by antioxidant compounds. (omitted)

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강황(Curcuma longa L.)으로부터 초임계 유체 추출한 curcumin의 생리활성 (Physiological Effects of Curcumin Extracted by Supercritical Fluid from Turmeric (Curcuma longa L.))

  • 정승현;장규섭;고경희
    • 한국식품과학회지
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    • 제36권2호
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    • pp.317-320
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    • 2004
  • Curcumin의 추출효율은 에탄을 추출방법이 가장 높았고, 항산화효과는 에탄올, 초임계, 열수 추출물 순으로 나타났다. Ames의 mutagenicity test를 실시한 결과 각각의 추출물은 돌연변이원이 없는 것으로 확인되었고, TA98에 직접변이원 2-NF 처리시 초임계 추출물의 저해율이 20.1%로 에탄올과 열수 추출물에 비하여 가장 높은 항돌연변이 효과를 나타냈다. 또한 간접 변이원 2-acetamidofluorene($10\;{\mu}L/plate$; Sigma Co.; 2-AF)에 대한 항돌연변이 효과를 알아본 결과 2-AF로 유도된 TA98은 초임계 추출물을 0.1 mL/plate로 처리시 항돌연변이의 효과는 12.2%였으며, 알코올 추출물과 열수 추출물의 경우는 항돌연변이 효과가 나타나지 않았다. Nitrite의 분해능의 경우에 있어서도 에탄올 및 열수 추출물에 비하여 초임계 추출물이 높은 분해율을 나타냈으며 pH 1.2에서 가장 높은 분해율을 보였다. 이와 같이 초임계를 이용해 추출한 curcumin은 항산화효과, nitrite 분해능, 항돌연변이효과 등에 대한 생리활성 기능을 보였으며, 기존의 에탄올이나 열수 추출법에 비하여 유사하거나 더 높은 생리활성 효과가 나타나기도 했다.

DEVELOPMENT OF ANTIMUTAGENIC FUNCTIONAL DIET

  • Kim, Su-Ok;Rhee, Sook-Hee;Park, Kun-Young
    • 한국독성학회:학술대회논문집
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    • 한국독성학회 2001년도 International Symposium on Dietary and Medicinal Antimutgens and Anticarcinogens
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    • pp.100-100
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    • 2001
  • To develop an antimutagenic functional diet, the foods that have shown anticancer activity were mixed to make ready-to-eat powdered diets. The diets were prepared with various kinds of powdered cooked cereals, cooked legumes, oil seeds and sea tangles, and freeze-dried vegetables. The antimutagenic effects of methanol extracts from three mixed diets were investigated in the Ames test, SOS chromotest, and in vivo supravital staining micronucleus assay in the mice.(omitted)

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CHEMOPREVENTIVE FOOD PHYTOCEHMICALS: SCREENING, ACTION MECHANISMS, AND METABOLISM

  • Murakami, Akira;Koshimizu, Koichi;Ohigashi, Hajime
    • 한국독성학회:학술대회논문집
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    • 한국독성학회 2001년도 International Symposium on Dietary and Medicinal Antimutgens and Anticarcinogens
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    • pp.33-34
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    • 2001
  • Cancer chemoprevention Chemoprevention with strategies using food phytochemicals is currently regarded ascompose one of the noticeable most visible and promising scientific fields for cancer control. A large body of data from both epidemiologic and rodent studies has demonstrated that the ingestion of various vegetables and fruits is occasionally beneficial for cancer risk reduction of cancer risks in humans.(omitted)

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EFFECTS OF BHA AND ACETAMINOPHEN ON THE BILIARY EXCRETION OF PHENOLPHTHALEIN AND THE HEPATIC GLUCURONIDATION IN MALE RATS

  • Choe, Suck-Young;Lim, Wha-Jae;Rina Yu
    • Toxicological Research
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    • 제9권2호
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    • pp.133-145
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    • 1993
  • The present study examined the effects of butylated hydroxyanisole (BHA) on acetaminophen (AA)-induced hepatotoxicity in male rats and also examined the effects of these compounds on the biliary excretion of phenolphthalein (PP) and the hepatic glucuronidation. Male Sprague-Da-wley rats were pretreated with BHA (0.75% in diet for 10 days) were given single dose of AA (600mg/kg, ip) and liver function was determined 24 hr later. Serum activity of alanine aminotransferase (ALT) and histopathology were used as indices of hepatotoxicity.

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Protective Effects of Probiotic Lactobacillus rhamnosus IMC501 in Mice Treated with PhIP

  • Dominici, Luca;Villarini, Milena;Trotta, Francesca;Federici, Ermanno;Cenci, Giovanni;Moretti, Massimo
    • Journal of Microbiology and Biotechnology
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    • 제24권3호
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    • pp.371-378
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    • 2014
  • The aim of the present study was to investigate the antigenotoxic properties of the probiotic Lactobacillus rhamnosus IMC501; DNA damage was induced by one representative food mutagen, 2-amino-1-methyl-6-phenylimidazo[4,5-b]pyridine (PhIP). Mice were treated orally with suspensions of lactobacilli for 10 days before administration of food mutagen. During the treatment, the abundance of lactobacilli in feces, as assessed by qPCR analysis, increased, whereas ${\beta}$-glucuronidase and N-acetyl-${\beta}$-glucosaminidase activities decreased. The extent of DNA damage was measured in colon and liver cells by comet assay. In colonocytes, diet supplementation with IMC501 resulted in a significant inhibition of DNA damage induced by PhIP. The results obtained in this in vitro study suggest that Lactobacillus rhamnosus IMC501 used as a dietary supplement can provide a useful integration of antimutagen food components of the normal diet, which are generally lower than the protective level.