• Title/Summary/Keyword: OV-6

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Quantitative Analysis of Protein Amino Acid in Agaricus Bisporus by GLC (GLC에 의한 버섯의 Amino Acid 정량(定量))

  • Jung, Jai-Kie;Chung, Jai-Young;La, Sang-Moo
    • Journal of Nutrition and Health
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    • v.7 no.4
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    • pp.12-20
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    • 1974
  • Quantitative analysis was achieved by gas-liquid chromatographic method (GLC) with a single column system of OV-17 for 16 of protein amino acids in mushroom (agaricus bisporus). The quantities of protein amino acids in mushroom were determined $48.32{\sim}255.94mg%$ alanine, $108.6F{\sim}364.82mg%$ glycine, $124.30{\sim}314.17mg%$ Valine, $32.99{\sim}418.79mg%$ leucine and isoleucine, $151.78{\sim}669.07mg%$ threonine, $88.12{\sim}4F6.3Fmg%$ Serine, $21.9F{\sim}114.94mg%$ Hydroxyproline, $20.F4{\sim}174.63mg%$ proline, $34.52{\sim}173.59mg%$ Methionine, $225.25{\sim}1417.61mg%$ Aspartic Acid, $10F.00{\sim}392.17mg%$ Phenylalanine, $12F.46{\sim}535.65mg%$ Glutamic Acid and Lysine, Tyrosine in trace amount.

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Dissolution Properties of Phosphate Glasses with Trace Elements

  • Lee, Hoi-Kwan;Kang, Won-Ho
    • Journal of the Korean Ceramic Society
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    • v.42 no.6 s.277
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    • pp.371-376
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    • 2005
  • Phosphate glasses were prepared by melting quenching process, and glass formation and dissolution properties were studied. The glass forming region in the $K_2O-CaO-P_2O_5$ system is quietly agreed with the report by Mazurin OV et al. with $M_2O-M'O-P_2O_5$ system (M : monovalent cation, M'divalent cation). Conditionally these glasses have solubility from absorbing the moisture or water and then release elements with trace elements, and the thermal and chemical properties were controllable by the $CaO,\;K_2O,\;P_2O_5$ contents. In the abnormal glass properties, this paper showed the possibility the present glasses can be a good candidate for one component of the slow released agriculture fertilizer.

Cytotoxic Sesquiterpenoid from the Seeds of Amomum xanthioides

  • Kim, Ki-Hyun;Choi, Jung-Wook;Choi, Sang-Un;Lee, Kang-Ro
    • Natural Product Sciences
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    • v.17 no.1
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    • pp.10-13
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    • 2011
  • As parts of our continuing search for biologically active compounds from medicinal plants, we investigated the constituents of the seeds of Amomum xanthioides and isolated a sesquiterpenoid, a nerolidol derivative from its MeOH extract. The chemical structure was determined by spectroscopic methods, including 1D and 2D NMR to be ($2S^*$,$2'R^*$,$5'S^*$)-2-(5'-ethenyltetrahydro-5'-methylfuran-2'-yl)-6-methylhept-5en-2-ol (1). Compound 1 was isolated for the first time from nature source. Compound 1 exhibited a good cytotoxicity against SK-OV-3 and SK-MEL-2 cells ($IC_{50}$: 16.7 and $8.6\;{\mu}M$, respectively) using a SRB bioassay. In this study, we also determined the absolute configuration of 2 reported in previous paper.

Triterpenes from Perilla frutescens var. acuta and Their Cytotoxic Activity

  • Woo, Kyeong Wan;Han, Ji Young;Choi, Sang Un;Kim, Ki Hyun;Lee, Kang Ro
    • Natural Product Sciences
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    • v.20 no.2
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    • pp.71-75
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    • 2014
  • Nine triterpenes were isolated from the petroleum ether and MeOH extract of Perilla frutescens var. acuta leaves. Their structures were determined to be arjunic acid (1), maslinic acid (2), oleanolic acid (3), euscaphic acid (4), tormentic acid (5), 3-O-trans-p-coumaroyltormentic acid (6), 28-formyloxy-$3{\beta}$-hydroxy-urs-12-ene (7), ursolic acid (8), and corosolic acid (9) by spectroscopic methods. The compounds 1, 2, 4, 6, and 7 were isolated for the first time from this plant and the Genus Labiatae. The isolated compounds (1-9) were tested for cytotoxicity against four human tumor cell lines (A549, SK-OV-3, SK-MEL-2, and HCT-15) in vitro using a Sulforhodamin B bioassay.

Phytochemical Constituents of Artemisia stolonofera

  • Kwon, Hak-Cheol;Choi, Sang-Un;Lee, Kang-Ro
    • Archives of Pharmacal Research
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    • v.24 no.4
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    • pp.312-315
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    • 2001
  • Repeated column chromatographic separation of the $CH_{2}Cl_{2}$ extract of Artemisia stolonofera (Asteraceae) led to the isolation of a triterpene (I), a sesquiterpene (II), two aromatic compounds (III and IV) and a benzoquinone (V). Their structures were determined by spectroscopic means to be simiarenol (I), (1S,7S)-1 $\beta$-hydroxygermacra-4(15),5, 10(14)-triene (II), 3'-methoxy-4'-hydroxy-trans-cinnamaldehyde (III), vanillin(IV) and 2,6-dimethoxy-1,4-benzoquinone (V), respectively. Among these products, compound V showed significant cytotoxicity against five human tumor cell lines in vitro, A549 (non small cell lung adenocarcinoma), SK-OV-3 (ovarian), SK-MEL-2 (skin melanoma), XF498 (CNS) and HCT15 (colon) with ED_{50}$ values ranging from 1.33~4.22${\mu}g/ml$.

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Cytotoxic Alkaloids from Houttuynia cordata

  • Kim, Seong-Kie;Ryu, Shi-Yong;No, Jae-Sung;Choi, Sang-Un;Kim, Young-Sup
    • Archives of Pharmacal Research
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    • v.24 no.6
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    • pp.518-521
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    • 2001
  • Six bioactive alkaloids, aristolactam B(1), poperolactam A(2), aristolactam A(3), norcepharadione B(4), cepharadione B(5) and splendidine(6) were isolated by bioactivity-guided fractionalton of a methanolic extract of the aerial part of Houttuynia cordata. Several of them exhibited significant cytotoxicity against five human tumor cell lines (A-549,SK-OV-3,SK-MEL-2, XF-498 and HCT-15) in vitro.

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Hydrolysable Tannins and Related Compound having Cytotoxic Activity from the Fruits of Terminalia chebula

  • Lee, Seung-Ho;Ryu, Shi-Yong;Choi, Sang-Un;Lee, Chong-Ock;No, Zaesung;Kim, Seong-Kie;Ahn, Jong-Woong
    • Archives of Pharmacal Research
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    • v.18 no.2
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    • pp.118-120
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    • 1995
  • The cytotoxicity-directed fractionation of MeOH extract of Terminalia chebula fruits led to the isolation of three hydrolyzed tannins and a related compound, gallic acid(1), $1,2,3,4,6-penta-O-galloy-{\beta}-_D/-glucopyranose(II)$,. chebulagic acid (III) and chebulinic acid(IV), as active principles. They were shoen to exhibit moderate cytotoxicity against cultured human tumor cell lines including A-549, SK-OV-3, Sk-MEL-2, XF-498 and HCT-15 in vitro.

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Synthesis and Cytotoxic Activities of 8-Alkyl or 8-Aryl-8,9-dihydro-7H-isoindolo[5,6-g]quinoxaline-7,9-diones

  • Jung Jae-Kyung;Jung Eun-Kyung;Kwon Nam-Goong;Cho Jung-Sook;Kim Hwan-Mook;Park Sung-Gyu;Yoo Yeong-Ah;Kwon Joo-Hee;Lee Hee-Soon
    • Archives of Pharmacal Research
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    • v.29 no.4
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    • pp.276-281
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    • 2006
  • A series of 8-alkyl-and 8-aryl-8,9-dihydro-7H-isoindolo[5,6-g]quinoxaline-7,9-diones were synthesized using sultine chemistry as a key step in good yield. These compounds were evaluated for their in vitro cytotoxicity against six human cancer cell lines (HCT15, SK-OV-3, A549, SNB19, MCF7 and MCF7/ADR).

Cytotoxic Effects of Hydrolysable Tannins from Some Euphorbia Plants on the Human Tumor Cell Lines (유포르비아속 식물로부터 단리한 가수분해형 탄닌의 인체고형암 세포에 대한 세포독성효과)

  • Lee, Seung-Ho;Park, Ji-Soo;Kim, So-Young;Chung, See-Ryun;Choi, Sang-Un
    • YAKHAK HOEJI
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    • v.41 no.4
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    • pp.524-529
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    • 1997
  • Seventy three hydrolysable tannins and related compounds were isolated from seven Euphorbia plants. Among them, 28 compounds including nine gallotannins, eleven ellagitannins and eight related compounds were selected according to the structural similarity. Cytotoxicity of them on the human tumor cell lines including A-549, SK-OV-3, SK-MEL-2, XF-498 and HCT-15 were evaluated by the SRB method in vitro. 3,4,6-Tri-O-galloyl-D-glucose was shown to exhibit most potent cytotoxic effect($4.4{\mu}g/ml).

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Prevalence of Intestinal Helminths among Inhabitants of Cambodia (2006-2011)

  • Yong, Tai-Soon;Chai, Jong-Yil;Sohn, Woon-Mok;Eom, Keeseon S.;Jeoung, Hoo-Gn;Hoang, Eui-Hyug;Yoon, Cheong-Ha;Jung, Bong-Kwang;Lee, Soon-Hyung;Sinuon, Muth;Socheat, Duong
    • Parasites, Hosts and Diseases
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    • v.52 no.6
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    • pp.661-666
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    • 2014
  • In order to investigate the status of intestinal helminthic infections in Cambodia, epidemiological surveys were carried out on a national scale, including 19 provinces. A total of 32,201 fecal samples were collected from schoolchildren and adults between 2006 and 2011 and examined once by the Kato-Katz thick smear technique. The overall egg positive rate of intestinal helminths was 26.2%. The prevalence of hookworms was the highest (9.6%), followed by that of Opisthorchis viverrini/minute intestinal flukes (Ov/MIF) (5.7%), Ascaris lumbricoides (4.6%), and Trichuris trichiura (4.1%). Other types of parasites detected were Enterobius vermicularis (1.1%), Taenia spp. (0.4%), and Hymenolepis spp. (0.2%). The northwestern regions such as the Siem Reap, Oddar Meanchey, and Banteay Meanchey Provinces showed higher prevalences (17.4-22.3%) of hookworms than the other localities. The southwestern areas, including Koh Kong and Preah Sihanouk Provinces showed higher prevalences of A. lumbricoides (17.5-19.2%) and T. trichiura (6.1-21.0%). Meanwhile, the central and southern areas, in particular, Takeo and Kampong Cham Provinces, showed high prevalences of Ov/MIF (23.8-24.0%). The results indicate that a considerably high prevalence of intestinal helminths has been revealed in Cambodia, and thus sustained national parasite control projects are necessary to reduce morbidity due to parasitic infections in Cambodia.