• 제목/요약/키워드: Chromosome Aberration

검색결과 192건 처리시간 0.026초

방사선조사 인삼의 유전독성에 관한 연구 (Studies on the Genotoxicity of the Gamma-irradiated Panax Ginseng Radix In Vitro and In Vivo)

  • 하광원;정해관;오혜영;허옥순;손수정;한의식;정성철;최부영;김영미
    • 한국식품위생안전성학회지
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    • 제9권2호
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    • pp.67-74
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    • 1994
  • This study was aimed to find out the comparative effects between non-irradiated, and 5kGy-10kGy of gamma-irradiated Panax Ginseng Radix powder on the genotoxicity for identification of possibility of DNA damage causing cancer. Four different short-term mutagenicity tests were used: (1) Salmonella typhimurium reversion assay (Ames test) (2) Chromosome aberration test in cultured Chinese hamster lung (CHL) fibroblast cells. (3) Micronucleus test in ddY mouse (4) Somatic mutation and recombination test in the wing cells of Drosophila melanogaster.Gamma-irradiated Panax Ginseng Radix powder revealed negative results in these four mutagenicity tests. This means gamma-irradiated ginseng could be safe on the genotoxic point of view.

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감마선 조사된 녹즙의 In vitro 유전독성학적 안전성 평가 (In vitro Genotoxicological Safety of Fresh Vegetable-Extract Juice by Gamma Irradiation)

  • 이현자;강근옥;육홍선
    • 한국식품영양과학회지
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    • 제30권6호
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    • pp.1227-1236
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    • 2001
  • 녹즙의 위생화와 저장.유통 안정성 확보를 위해 10kGy 감마선 조사된 녹즙(돌미나리, 당근, 케일 및 신선초)의 유전 독성학적 안전성 검증의 일환으로 Salmonella typhimurium 균주를 이용한 복귀돌연변이 실험과 Escherichia coli PQ37 균주를 이용한 SOS chromotest 및 CHL 세포를 이용한 염색체 이상시험을 수행하였다. 10 kGy로 감마선 조사된 녹즙은 위 세가지 in vitro 유전독성시험을 한 결과, 음성을 나타내었다. 결과적으로 10 kGy로 조사된 녹즙은 어떠한 돌연변이도 유발시키지 않았으며 감마선 조사된 녹즙이 in vitro에서 유전독성학적으로 안전하였다.

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Genotoxic evaluation of Gyllus bimaculatus in 3 sets of mutagenicity tests

  • Ahn, Mi-Young;Pae, Hey-Jin;Lee, Byung-Mu;Ryu, Kang-Sun
    • 대한약학회:학술대회논문집
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    • 대한약학회 2003년도 Proceedings of the Convention of the Pharmaceutical Society of Korea Vol.2-2
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    • pp.120.1-120.1
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    • 2003
  • The mutagenic potential of Gryllus bimaculatus was evaluated using the short-term genotoxicity tests including Ames, chromosome aberration and micronuclei tests. In salmonella typhimurium assay, G. bimaculatus did not show any mutagenic response in the absence or presence of S9 mix with TA98, TAl00, TA1535, and TA1537. In chromosome aberration test, G. bimaculatus did not show any significant effect on Chinese Hamster Ovary (CHO) cells compared with control. (omitted)

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FISH(fluorescence in situ hybridization)를 이용하여 분석한 크롬에 의해 유발된 염색체 이상 (Detection of Chromosomal Rearrangements by Chromium in Human Lymphocyte Using Fluorescence in situ Hybridization (FISH) with Triple Combination of Composite whole Chromosome Specific Probe)

  • 정해원;김수영;맹승희;이용묵;유일재
    • 한국환경성돌연변이발암원학회지
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    • 제19권1호
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    • pp.14-19
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    • 1999
  • Chromosome rearrangements induced in human lymphocyte after in vitro exposure to chromium were analysed by the use of fluorescence in situ hybridization(FISH) with triple combination of composite whole chromosome-specific probe for chromosome 1, 2 and 4. Chromosome aberrations was scored by the Protocol for Aberration Identification and Nomenclature Terminology (PAINT). Stable translocation was the most frequent type of aberrations and dicentrics and insertions were also observed. Chromium treatment enhanced the frequencies of stable translocations and color junctions in a dose-dependent manners, but no distinct increase of dicentrics and insertions was seen. The ratio of the yields of translocation to the yields of dicentric varied between 13 to 27. The presents results demonstrate fluorescent in situ hybridization (FISH) is useful for detecting chromosomal rearrangements induced by chromium.

YH1715계열 항진균제의 유전독성평가 (Genetic Toxicity Study of YH1715 Series, Antifungal Agents)

  • 하광원;오혜영;박장환;허옥순;손수정;한의식;이종영;김소희;강희일
    • 한국환경성돌연변이발암원학회지
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    • 제18권2호
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    • pp.93-97
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    • 1998
  • The results of chromosome aberration test in mammalian cells in culture (Chinese hamster lung fibroblast cells) showed no induction of structural and numerical aberrations by antifungal agents of YH1715 series regardless of metabolic activation. While positive control group (mitomycin C and benzo(a)pyrene) showed structural chromosome aberrations of 37% and 23%, respectively. The in vivo induction of micronuclei was measured in polychromatic erythrocytes in bone marrow of male ddY mouse given YH1715R and YH1729R at 1, 0.5, 0.25 g/kg by p.o. once. After 24 hours, animals were sacrificed and evaluated 40 the incidence of micronucleated polychromatic erythrocytes in whole erythrocytes. Although a positive response for induction of micronuclei in animals treated with mitomycin C demonstrated the sensitivity of the test system for detection of a chemical clastogen, YH1715R did not induce micronuclei in bone marrow of ddY male mice but induced cytotoxicity to bone marrow cells at the highest concentration (1 g/kg, p〈0.05), and YH1729R induced micronuclei in bone marrow of ddY male mice dose dependently (p<0.05) but did not induce cytotoxicity to bone marrow cells.

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Lactobacillus plantarum AF1와 Lactobacillus plantarum HD1이 생성한 조항균 물질의 유전학적 독성평가 (A Genotoxicological Safety Evaluation of Crude Antifungal Compounds Produced by Lactobacillus Plantarum AF1 and Lactobacillus Plantarum HD1)

  • 장해춘;고상범;이재준
    • 한국지역사회생활과학회지
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    • 제26권4호
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    • pp.633-645
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    • 2015
  • This study investigates the genotoxicity of crude antifungal compounds produced by Lactobacillus plantarum AF1 (L.plantarum AF1) and Lactobacillus plantarum HD1 (L. plantarum HD1) isolated from kimchi. The genetic toxicity of crude antifungal compounds was evaluated in bacterial reverse mutation in Salmonella and Escherichia spp., chromosome aberrations in Chinese hamster lung cells, and micronucleous formations in mice. In bacterial reversion assays with Salmonella Typhimurium TA98, TA100, TA1535, TA1537, and WP2uvrA, crude antifungal compounds did not increase the number of revertant colonies in both the absence and presence of the 59 metabolic activation system. In the chromosome aberration test with Chinese hamster lung cells, crude antifungal compounds showed no increase in the frequency of chromosome aberrations in the short-period test with/without the S9 mix or in the continuos test. In the in vivo mouse micronucleus assay, crude antifungal compounds showed no increase in the frequency of polychromatic erythrocytes with micronuclei. The results show that crude antifungal compounds produced by L. plantarum AF1 and L. plantarum HD1 did not induce any genotoxicity.

새로운 재조합 인 과립구 콜로니 자극인자 DA-3030의 변이원성연구 (Mutagenicity Study of DA-3030, A New Recombinant Human G-CSF(rhG-CSF))

  • 강경구;최성학;김옥진;안병옥;백남기;김계원;김원배;양중익
    • Biomolecules & Therapeutics
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    • 제2권3호
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    • pp.286-291
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    • 1994
  • The mutagenicity of DA-3030(rhG-CSF)was studied by reverse mutation test, chromosome aberration test and micronucleus test. The reverse mutatuon test in bacteria was performed using salmonella typhimurium strain TA100, TA98, TA1535 and TA1537 with rhG-CSF in any of the concentrations(150, 75, 37.5, 18.75, 9.375 and 4,6875 $\mu\textrm{g}$/plate), no increase in the number of revertant colonies in each strain was observed, irrespective of treatment with the metabolic activation system(S-9 mix) The chromosome aberration test was carried out using CHL cells, cell line from chinese hamster lung. With 4 doses(75, 37.5, 18.75 and 9.375 $\mu\textrm{g}$/ml) of rhG-/CSF the cells were treated for 24 or 48 hours in the direct method or for 6 hours followed by 18 hour-expression time in the metabolic activation method. Results of the study showed, by the direct method or metabolic activation method, no trend toward increase in the number of aberrant metaphase. The micronucleus test was carried out using ICR mice at the age of 8 weeks. Three doses(862.5, 1725 and 3450 $\mu\textrm{g}$/kg) of DA-3030 were admintstered intraperitoneally with single shot and bone marrow cells were sampled at 24 hours after administration. Neither the number of polychromatic erythrocytes with micronuclei nor the ratio of normochromatic erythrocytes to polychromatic erythrocytes increased singinficantly in each dose, compared with a vehicle control. These results indicate that rhG-CSF has not mutagenic potential under the condiions.

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