• Title/Summary/Keyword: antimutagenecity

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A Study on Antimutagenic Activity of the Extracts from Paecilomyces japonica (동충하초(冬蟲夏草)의 항돌연변이(抗突然變異) 활성(活性)에 관한 연구(硏究))

  • Park, Sung-Ho;Jeong, Ji-Cheon;Seo, Un-Kyo
    • The Journal of Internal Korean Medicine
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    • v.21 no.2
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    • pp.309-318
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    • 2000
  • The fruiting bodies of Paecilomyces japonica been used for an anticancer and immuno-stimulating agent as an oriental medicine, Antimutagenecity test with SOS chromotest and antioxidant test with NBT method were carried out using the concentrated culture broth, the extract of mycelia, and that of fruiting bodies. Among the sample extracts tested, the extract of fruiting bodies was most effective to antimutagenecity against the mutagens tested such as MNNG, ethidium bromide(EtBr), 2-aminofluorene(AF) and nitrofluorene(NF). Antimutagenic activity of all the extracts were very effective against mutagen, MNNG. When the extracts were added to certain concentration, antimutagenic activity was enhanced against mutagen, MNNG and NF. Antioxidant activity of the extract from fruiting bodies was highest. However, its activity was very low, compared to ascorbic acid.

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A Study on Antimutagenic Acitivities of the Extracts from Dianthi Herba (구맥(瞿麥)의 항돌연변이(抗突然變異) 활성(活性)에 관한 연구(硏究))

  • Seo Un-Kyo;Jeong Ji-Cheon
    • Herbal Formula Science
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    • v.11 no.2
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    • pp.197-212
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    • 2003
  • Antigenotoxicity test (SOS chromotest) and antimutagenecity test (Ames test) were carried out using water-soluble and methanolic extracts from Dianthi Herba. Antigenotoxic activity of methanolic extract against mutagens both MNNG and NQO was much more effective than that of water-soluble one. When the extract was added to the certain concentration $(100\;{\mu}l/tube)$, antigenotoxic activities against both mutagens were enhanced. Against the mutagen MNNG with Ames test, antimutagenic activity of the methanolic extract was better than that of water-soluble one. The 74.6% of inhibition ratio for revertant forming CFU/plate was shown at $300\;{\mu}l/plate$ of the methanolic extract.

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A Study on Activities of Antioxidant and Antimutagenecity of the Extracts from Gleditsia sinensis (조각자의 항돌연변이(抗突然變異) 및 항산화(抗酸化) 활성(活性)에 관한 연구(硏究))

  • Lee, Shin-Kyu;Seo, Un-Kyo;Jeong, Ji-Cheon;Shin, Jeong-In
    • The Journal of Internal Korean Medicine
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    • v.22 no.2
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    • pp.215-222
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    • 2001
  • Against the mutagen MNNG and NOPD with SOS chromotest, the antigenotoxic activity of MeOH-soluble extract was much more effective than that of the water-soluble one. When the extract was added to the certain concentration, the antigenotoxic acivity was enhanced. Against the mutagen NOPD with Ames test, the antimutagenic activity of MeOH-soluble extract was better than that of the water-soluble one. The 60.4% of the inhibition ratio for the revertant colony-forming unit was shown at 5 mg of MeOH-soluble extract per plate. Antimutagenecity test with SOS chromotest and Ames test were performed using water-soluble and MeOH-soluble extracts from of Gleditsia sinensis. The antioxidant activity of MeOH-soluble extract with the NBT method was higher than that of the water-soluble one.

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A Study on Antimutagenic acitivities of from Puerariae Flos Extracts (갈화(葛花)의 항돌연변이(抗突然變異) 활성(活性)에 관한 연구(硏究))

  • Jeong Young-Jae;Kim Mi-Rang;Jeong Ji-Cheon;Seo Woon-Gyo
    • The Journal of Internal Korean Medicine
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    • v.25 no.1
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    • pp.106-118
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    • 2004
  • Antigenotoxicity test (SOS chromotest), antimutagenecity test (Ames test), and antioxidant test (NBT method and xanthine-xanthine oxidase method) were carried out using water-soluble and methanolic extracts from Puerariae Flos. Against the mutagens MNNG and NQO, antigenotoxic activity of methanolic extracts were much more effective than that of water-soluble ones. When the methanolic extract was added to the certain concentration $(100{\mu}{\ell}/tube)$, antigenotoxic acivity against the mutagen MNNG was enhanced. Contrary to the water-soluble extract, the methanolic extract showed high antigenotoxicity against the mutagen NQO with increment of the extract. Against the mutagen MNNG with Ames test, antimutagenic activity of the methanolic extract at $300{\mu}{\ell}/tube$ was 96% as an inhibition ratio of revertant forming CFU/plate. The antioxidant activity of water-soluble extract was comparatively higher than that of the methanolic one.

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Antitumor and Antimutagenic Effect of the Proteinpolysaccharides from Polyporus umbellatus (저령다당체의 항종양 및 항돌연변이 효능)

  • 이정화;신유진;조덕제;임희진;최원일;이용규
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.33 no.3
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    • pp.475-479
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    • 2004
  • The proteinpolysaccharides (PPS) from Polyporus umbellatus (P. umbellatus) screlotium is composed by 78.2% of saccharide, 16.8% of protein, and 4.0% of ash. PPS from P. umbellatus showed antitumor activities against 180 solid tumor in ICR mice at the concentration of 20-160 mg/kg/day. PPS from P. umbellatus inhibited cell viability to 47.4% and 45.0% in leukemia cell lines, L-1210 and K-562 cells at 50-400 $\mu\textrm{g}$/mL concentration, respectively. But the hall mark of cell apoptosis, DNA fragmentation was not observed at those concentration. 2.5-10.0% of PPS from P. umbellatus inhibited mutagenecity evoked by 2-nitrofluorene and sodium azide in Salmonella typhimurium TA 98 and TA 100. From these results, it is suggested that the PPS of P. umbellatus has antitumor and antimutagenic effect, and its cytotoxic effect may not be ascribed to the apoptosis.

Protective Effect of Water Extract of Lycii Cordex Radicis on Lipid Peroxidation of Rat Skin Exposed to Ultraviolet B Radiation (자외선 B에 노출된 쥐 표피의 지질과산화에 대한 지골피 물 추출물의 보호효과)

  • Gwak, Jun-Su;Ryu, Seung-Hee;Moon, Gap-Soon;Choi, Dong-Seong;Park, Sung-Hye;Han, Jong-Hyun;Ahn, Byung-Yong
    • Applied Biological Chemistry
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    • v.45 no.4
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    • pp.218-222
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    • 2002
  • Lycii Cordex Radicis extract (gigolpi) examined through SOS Chromotest showed a strong, dose-dependent antimutagenic effect on the tert-butyl hydroperoxide (t-BOOH) induced mutagenecity. Gigolpi revealed considerable superoxide anion radical scavenging activity under L-ascorbic $acid-CuSO_4$ system, but showed lower hydroxyl radical scavenging activity in photochemical test system. Hot-water gigolpi extract delayed protein oxidation, whereas lipid peroxidation of rat skin exposed to UVB radiation was inhibited. The results indicate that gigolpi possessing antioxidant activity against UVB-induced lipid peroxidation could be used as a raw ingredient for manufacturing functional cosmetics

Biological Activities in roots of Glycyrrhiza uralensis Fisch (감초 세근의 생리활성 탐색)

  • Chung, Woo-Teak;Lee, Seo-Ho;Cha, Moon-Suk;Sung, Nak-Sul;Hwang, Baek;Lee, Hyeon-Yong
    • Korean Journal of Medicinal Crop Science
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    • v.9 no.1
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    • pp.45-54
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    • 2001
  • The biological activities of ethanol, ethanol: water(1 : 1v/v) and water extracts from Glycyrrhiza uralensis Fisch, glycyrrhizin and enzymatically hydrolyzed glycyrrhizin were compared. About 50% of the growth of MCF7, A549, Hep3B and AGS cells were inhibited in adding 1.0 g/L of the crude extracts, glycyrrhizin and enzymatically hydrolyzed glycyrrhizin. For example, the ethanol extract inhibited 76%, 66% in MCF7 and Hep3B cells by adding 1.0 g/L. For cytotoxicity on human normal liver cell(WRL-68), the crude extracts were scored as above 26%. For the result of antimutagenecity using CHO V79 cell, the crude extracts proved more effective than other samples. The growth of human immune B and T cells were enhanced up to $1.2{\sim}1.3$ times by adding the crude extracts. In inhibitory effect of ${\alpha}-glucosidase$ activity was showed that the ethanol extract, water extract and ethanol: water (1 : 1v/v) extract were appeared 65%, 68%, 62% in adding 1.0 g/L. The higher enhancement of glutathione -S-transferase activity was observed in the ethanol extract as 257% compared to the control in adding 1.0 g/L. From the results, the biological activities of the crude extracts were equivalent or higher than glycyrrhizin and enzymatically hydrolyzed glycyrrhizin.

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