• Title/Summary/Keyword: Mutagenicity tests

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Selection of Target Materials for GLP Genotoxic Tests by Searching the Mutagenicity Information of Chemicals by Occupational Safety and Health Act (산안법 관리대상물질의 변이원성 검색을 통한 GLP 유전독성 시험대상 후보물질의 선정)

  • Rim, Kyung-Taek;Lim, Cheol-Hong;Ahn, Byung-Joon
    • Journal of Korean Society of Occupational and Environmental Hygiene
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    • v.25 no.3
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    • pp.254-284
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    • 2015
  • Objectives: There is a requirement to select target materials for mutagenicity(Genotoxicity) testing, so we determined to set the test priorities of them by searching the related database. Methods and Results: We searched a number of databases to find information on mutagenicity tests with chemicals under the Occupational Safety and Health Act(OSH Act), such as KOSHANET, National Toxicology Program(NTP), European Chemicals Agency(ECHA), US National Library of Medicine(NLM), and Genetic Toxicology Data Bank(GENE-TOX), as well as ChemIDplus webpage, and presented the information. Also we anticipated their hazards with ACToR sites to confirm the 58 mutagenicity(Genotoxicity) tests we will perform. Conclusions: We presented target materials for mutagenicity testing with specific GLP tests consisting of reverse mutation(Ames), chromosomal aberration and micronucleus test.

Study on the Mutagenicity of Drinking Water (음용수의 변이원성에 관한 조사연구)

  • 박지인;유춘만;위인선
    • Journal of Environmental Health Sciences
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    • v.24 no.2
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    • pp.68-73
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    • 1998
  • This is a study on the risk assessment of drinking water using mutagenicity testing. The tests have been carried with the raw water, treated water, and drinking water (tap water) in Kwangju and Mokpo areas. The Ames preincubation test was carried concentrating samples using by Sep-Pak PLUS cartriges in Salmonella typhimurium TA100 and TA98. The samples were tested with several chemical water quality analysis. The THMs have not been measured in raw water, but measured treated water and tap water at a value of 7.135-12.473 $\mu$g/l. It was observed that the number of revertants colonies increased in treated water and tap water on TA100 without S9 and showed weak mutagenicity on TA98 without S9. Indirect mutation was not seen in TA100 and TA98 with S9. The results indicated that formed substances of treatment process's of water that increased mutagenicity.

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Genotoxicity Tests on Hyrubicin ID6105, a Novel Anthracycline Anticancer Agent (새로운 Anthracycline계 항암제 Hyrubicin ID6105에 대한 유전독성연구)

  • 장호송;정미숙;이홍섭;유정수;김태영;김윤배;강종구
    • Toxicological Research
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    • v.18 no.4
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    • pp.385-391
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    • 2002
  • The genotoxic potential of Hyrubicin lD6105, a novel anthracycline anticancer agent, was examined on bacterial mutagenicity, mammalian cell chromosome aberration and mouse micronucleus tests. In mutagenicity (Ames') test, Salmonella typhimurium strain TA98, TA100, TA1535 and TA1537, and Escherichia coli WP2uvrA- were treated with ID6105 at doses of 312.5, 625, 1,250, 2,500 and 5,000 $\mu\textrm{g}$/ plate with or without a metabolic activation system (S9 mix). Interestingly, ID6105 significantly enhanced the number of revertant colonies of TA98 strain at all dose levels used, in the presence or absence of S9 mix, without affecting other strains of S. typhimurium and E. coli. In chromosome aberration test using cultured chinese hamster lung fibroblasts, ID6105 (1.25, 2.5 and 5 $\mu\textrm{g}$/ml) did not increase the number of aberrant cells, compared with vehicle control. in the presence or absence of S9 mix. In addition, ID6105 treatment (2.5, 5 and 10 mg/kg) did not induce micronucleated polychromatic erythrocytes in mice. Taken together, it is suggested that ID6105 might not affect chromosome integrity in mammalian system in vitro and in vivo, although it may induce frame shift mutation of specific bacterial strain such os S. typhimurium TA98.

MUTAGENICITY TESTS OF A NEW CEPHALOSPORIN ANTIBIOTIC AGENT, IDC-7181

  • Zheng, Mei-Shu;Sin, Ji-Soon;Kwon, Young-Bang;Nam, Sang-Yoon;Kang, Jong-Koo
    • Proceedings of the Korean Society of Toxicology Conference
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    • 2001.10a
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    • pp.180-180
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    • 2001
  • The mutagenic potency of a new antibiotics, IDC- 7181, was evaluated using the mutagenicity tests including Ames, chromosome aberration and micronucleus tests. In bacterial reversion assay, IDC-7181 did not show any mutagenic response in the absence or presence of S9 mixture with Salmonella typhimurium TA98, TAlOO, TA1535 and TA1537 and E. coli WP2uvrA-(100, 50, 25, 12.5 and 6.25 $\mu\textrm{g}$/plate).(omitted)

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Evaluation of Mutagenicity with Gamgung-tang Using Host-Mediated Assay (Host-Mediated Assay를 이용한 감궁탕의 돌연변이원성 평가)

  • Shon, Yun-Hee;Kim, Cheorl-Ho;Nam, Kyung-Soo
    • Korean Journal of Pharmacognosy
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    • v.36 no.2 s.141
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    • pp.93-96
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    • 2005
  • Mutagenicity of Gamgung-tang (GGT) was tested using in vitro S-9 mixture in vitro host-mediated assay with Salmonella typhimurium. In the previous reports, GGT was tested for the safety using Ames(-S-9), Bacillus subtilis Rec, and umu gene expression mutagenicity tests. Mutagenic activity in any assays we tested was not found. In this report, we further investigated safety of GGT after metabolic activation in vivo. Ames test with S-9 mixture and host-mediated assay with Salmonella typhimurium TA98 were used to identify metagenic property of GGT. GGT was administered 3 times with i.m. to Balb/c mice did not induced mutagenic effect in Salmonella typhimurium TA98 recovered from the liver after 3.5h with i.p. treatment. Over the entire dose range $(3{\sim}150mg/mouse)$ tested no toxicity was detected to the bacterial cells. These results suggest that there was no DNA damage and mutagenicity by GGT.

Bacterial Reverse Mutation Test of Verbenalin

  • Hye Jeong Shin;Yi Gun Lim;Ji Su Ha;Gabsik Yang;Tae Han Yook
    • Journal of Pharmacopuncture
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    • v.25 no.4
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    • pp.364-368
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    • 2022
  • Objectives: Verbenalin is a compound found in herbs such as Cornus officinalis and Verbena officinalis. This study investigated whether verbenalin is safe by analyzing its mutagenicity. Methods: To examine the mutagenic potential of verbenalin, a bacterial reverse mutation test (Ames test) was conducted with Salmonella typhimurium and Escherichia coli strains. Experiments with and without metabolic activity were performed. Results: The mean colony number was less than double that of the control. Growth inhibition and precipitation of verbenalin were not apparent in all strains at different concentrations regardless of metabolic activity. Conclusion: Verbenalin did not show any signs of mutagenicity in this study. Additional toxicity studies including repeated oral toxicity, reproductive toxicity, and carcinogenicity tests are needed.

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

  • 하광원;정해관;오혜영;허옥순;손수정;한의식;정성철;최부영;김영미
    • Journal of Food Hygiene and Safety
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    • v.9 no.2
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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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Evaluation of Safety with Astragali Radix : Ames, Rec and umu Assays (Ames, Rec 및 umu Assay를 이용한 황기의 안전성평가)

  • Shon, Yun-Hee;Nam, Kyung-Soo
    • Korean Journal of Pharmacognosy
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    • v.34 no.1 s.132
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    • pp.80-85
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    • 2003
  • Water extract from Astragali Radix (AR) was tested for the safety using Ames, Bacillus subtilis Rec, and umu gene expression mutagenicity tests. Mutagenic activity in any assays we tested was not found. In Ames test, Salmonella typhimurium TA98 and TA 100 were used to identify mutagenic property, and the number of histidine revertants was measured. In the Recassay, Bacillus subtilis ${H-17(Rec^+)\;and\;M-45(Rec^-)}$ strains were used to test DNA damage activity. In the SOS umu test, Salmonella typhimurium TA1535 containing plasmid pSK1002 was used as a test strain, and we monitored the levels of umu operon expression by measuring the ${\beta}-galactosidase$ activity. From the results, there was no DNA damage and mutagenicity of AR. Hepatotoxicity of AR to female ICR mice was also monitored by the measurements of s-GOT, s-GPT, LDH activities after oral feeding for 15 days. AR was not shown any significant changes of s-GOT, s-GPT and LDH activities in mice sera.

Mutagenicity studies of food and cosmetic dyes (1) (식용 및 외용색소의 유전독성에 관한 연구 (1))

  • 하광원;정해관;오혜영;허옥순;손수정;한의식;정성철;한순영;최선주
    • Journal of Food Hygiene and Safety
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    • v.8 no.3
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    • pp.171-179
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    • 1993
  • The mutagenicity of 22 food and cosmetic dyes had been evaluated. Two different short-term mutagenicity tests were used: (1) Salmonella typhimurium preincubation assay (Ames test) (2) Chromosome aberration test with cultured Chinese hamster lung (CHL) fibroblast cells. Orange No. 203 was mutagenic in Salmonella typhimurium with and without rat liver microsomal activation, and Red No. 204 was mutagenic in Salmonelhl typhimurium with rat liver microsomal activation. Red No. 104-1 and Red No. 215 showed slight increase of chromosomal aberration in CHL cells.

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