• Title/Summary/Keyword: MG-63 Cell

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Astragali Radix extract as a therapeutics on osteoporosis

  • Kim, Chung-Sook;Ha , Hye-Kyung;Song, Kye-Yong
    • Proceedings of the PSK Conference
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    • 2002.10a
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    • pp.387.1-387.1
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    • 2002
  • Aging and estrogen cleficiency after menopause induce bone loss and result in osteoporosis. This study was investigated effects of n-hexane fraction (Hx) extracted from Astragali Radix on osteoporosis with osteoblast-like cell line (MG-63 and Saos-2) and an ovariectomized (OVX) rat model. Proliferation of osteoblast-like cells. MG-63 and Saos-2. was tested with MTT and alkaline phosphatase (ALP) assays. (omitted)

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Inhibitory Effect of Kale Juice on the Growth and DNA Incorporation of Human Cancer Cells

  • Lee, Seon-Mi;Park, Kun-Young
    • Preventive Nutrition and Food Science
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    • v.2 no.2
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    • pp.167-173
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    • 1997
  • The inhibitory effects of kale juice on the growh and DNA incorporation of human cancer cells, using HT-29 colon cancer cells, MG-63 osteosarcoma cells, AGS gastric adenocarcinoma cells and K-562 leukemia cells, were studied. The growth of human cancer cells were inhibited in the presence of kale juice (10, 20 nd 40$\mu$l/ml) and the effects were the juice concentration- and incubation time-dependent up to 6 days. When 20$\mu$l/ml of kale juice was added to the media of HT-29, MG-63, AGS and K-562 cancer cells, the cell growth after 6 or 4 days of incubation was retarded by 83~95% of control group. Morphological changes of HT-29 colon cancer cells wre studied under inverted microscope. As the concentration of kale juice increased up to 20$\mu$l/ml, degree of cell aggregation was decreased. Moreover, the DNA incorporation o AGS gastric adenocarcinoma cells and MG-63 osteosarcoma cells which were labeled with [$^3$H] thymidine was significantly reduced after 2 days of incubation at 37$^{\circ}C$ with kale juice. Therefore, we concluded that kale juice strongly decreased the growth of various human cancer cells.

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Influence of Anodic Oxidation Film Formed on Titanium onto Cell Attachment and Proliferation (양극 산화에 의해 티타늄 표면에 형성된 산화 피막이 세포 부착 및 성장에 미치는 영향)

  • Noh, Se-Ra;Lee, Yong-Ryeol;Song, Ho-Jun;Park, Yeong-Joon
    • Korean Journal of Materials Research
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    • v.16 no.10
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    • pp.606-613
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    • 2006
  • This study was purposed to evaluate the influence of anodically oxidized film on titanium (Ti) onto MG-63 osteoblast-like cell attachment and activity. Only scratch lines created by polishing were seen in ASR and ANO-1 groups. About $1.5{\mu}m$-thick homogeneous oxide film which has pores of about $0.5{\mu}m$ diameter were formed in ANO-12. The crystalline structure of the oxide films formed by anodization in phosphoric acid electrolyte was $TiP_2O_7$. The total protein amounts of ANO-1 and ANO-12 groups showed higher values of maximum protein amount than that of AS-R group. At 3 days of incubation, total protein amount showed higher value in ANO-2 when comparing to that of AS-R (p<0.05). Based on the results of ALPase activity test, the degree of MG-63 cell differentiation for initial mineralization matrix formation was similar. For all the test groups after 1 day of incubation, MG-63 cells grew healthily in mono-layer with dendritic extensions. After incubation for 3 days, the specimen surfaces were covered more densely by cells, and numerous micro filaments were extruding to the extracellular matrix.

Biological Effects of Ceramic-coating on Titanium

  • Sohn, Sung-Hwa;Lee, Jae-Bum;Kim, Ki-Nam;Kim, Hye-Won;Kim, In-Kyoung;Lee, Seung-Ho;Seo, Sang-Hui;Kim, Yu-Ri;Lee, Seung-Min;Shin, Sang-Wan;Ryu, Jae-Jun;Kim, Meyoung-Kon
    • Molecular & Cellular Toxicology
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    • v.2 no.2
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    • pp.97-105
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    • 2006
  • Several features of the implant surface, such as roughness, topography, and composition play a relevant role in implant integration with bone. This study was conducted in order to determine the effects of ceramic-coatings on Ti surfaces on the biological responses of a human osteoblast-like cell line (MG63). MG63 cells were cultured on Zr (Zrconium-coated surface), Nb (Niobium-coated surface), and control (Uncoated Titanium) Ti. The morphology of these cells was assessed by SEM. The cDNAs prepared from the total RNAs of the MG63 were hybridized into a human cDNA microarray (1,152 elements). The appearances of the surfaces observed by SEM were different on each of the three dental substrate types. MG63 cells cultured on Zr, Nb and control exhibited cell-matrix interactions. In the expression of several genes were up-, and down-regulated on the different surfaces. The attachment and expression of key osteogenic regulatory genes were enhanced by the surface morphology of the dental materials used.

Gene Expression of Osteosarcoma Cells on Various Coated Titanium Materials

  • Sohn, Sung-Hwa;Lee, Jae-Bun;Kim, Ki-Nam;Kim, In-Kyoung;Lee, Seung-Ho;Kim, Hye-Won;Seo, Sang-Hui;Kim, Yu-Ri;Shin, Sang-Wan;Ryu, Jae-Jun;Kim, Meyoung-Kon
    • Molecular & Cellular Toxicology
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    • v.3 no.1
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    • pp.36-45
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    • 2007
  • Several features of the implant surface, such as topography, roughness, and composition play a relevant role in implant integration with bone. This study was conducted in order to determine the effects of different-coatings on Ti surfaces on the biological responses of a human osteoblast-like cell line (MG63). MG63 cells were cultured on HA (Hydroxyapatite coating on Titanium), Ano (HA coating on anodized surface Titanium), Zr (zirconium-coating on Titanium), and control (non-coating on Titanium). The morphology of these cells was assessed by SEM. The cDNAs prepared from the total RNAs of the MG63 were hybridized into a human cDNA microarray (1,152 elements). The appearances of the surfaces observed by SEM were different on each of the three dental substrate types. MG63 cells cultured on HA, Ano, Zr, and control exhibited cell-matrix interactions. In the expression of several genes were up-, and down-regulated on the different surfaces. The attachment and expression of key osteogenic regulatory genes were enhanced by the surface morphology of the dental materials used.

Antioxidant and Anti-inflammatory activity of Sargassum patens extract (쌍발이모자반(Sargassum patens) 추출물의 항산화 및 항염효과)

  • Kim, Sook-hee
    • Journal of Convergence for Information Technology
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    • v.11 no.7
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    • pp.264-271
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    • 2021
  • In this study, the antioxidant and anti-inflammatory properties of Sargassum patens extracts were identified. Antioxidant experiments included polyphenol concentration measurements, flavonoid concentration measurements, DPPH experiments, ABTS experiment NO experiments, and FRAP experiments. For polyphenols, 18.99±0.69 mg/g was shown. Flavonoids showed 11.89±1.16 mg/g. The DPPH experiment showed an antioxidant function of 19.78 mg ascorbic acid/g extract, the ABTS experiment showed an antioxidant function of 63.64 mg ascorbic acid/g extract, and the NO experiment showed an antioxidant function of 7.966 mg ascorbic acid/g extract. In FRAP, 1 mg of the moxibustion extract showed a reduction of 2.089 ㎍ of ascorbic acid. In the meantime, cell experiments showed cytotoxicity and anti-inflammatory functions against inflammation induced by LPS. In cytotoxicity experiments, Sargassum patens extracts showed a cell survival rate of more than 80% at all concentrations, and an inflammatory inhibition of 30.64±0.23% at a concentration of 100 ㎍/mL. These results indicate that Sargassum patens extract is available as an anti-inflammatory cosmetic material.

Lignans Isolated from the Roots of Patrinia scabiosaefolia F. and their IL(Interleukin)-6 Inhibitory Activity (마타리 뿌리로부터 분리한 Lignan 화합물의 IL-6 저해활성)

  • Choi, Eun-Jin;Jin, Qinglong;Shin, Ji-Eun;Kim, Hyun-Gyu;Kim, Jung-Jin;Woo, Eun-Rhan
    • YAKHAK HOEJI
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    • v.53 no.4
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    • pp.201-205
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    • 2009
  • In an ongoing investigation into anti-inflammatory compounds from natural products, the $CH_2Cl_2$ soluble fraction of Patrinia scabiosaefolia F. (Valerianaceae) was found to inhibit IL-6 production in TNF-$\alpha$ stimulated MG-63 cell line. By means of a bioassay-directed chromatographic separation technique, lappaol E (1), and nortrachelogenin (2) were isolated. These compounds have been isolated from this plant for the first time. Compounds $1{\sim}2$ showed potent antioxidative activity using NBT superoxide scavenging assay. Moreover, compound 1 decreased IL-6 production in TNF-$\alpha$ stimulated MG-63 cell line.

Antitumor Effect and Immunological Activity of Glycoprotein from Urechis unicinctus (개불 (Urechis unicinctus)에서 추출한 당단백질의 항암효과 및 면역활성)

  • 류홍수;이종열;문정혜;서재수
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.28 no.4
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    • pp.917-923
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    • 1999
  • To confirm therapeutic functionality of Urechis unicinctus which have been favored as a special seafood in Korea, the antitumor and immunological effect of those glycoprotein were studied. 4mg/kg dose of glycoprotein from Urechis unicinctus was most effective in solid tumor growth inhibition (43.63%) of sarcoma 180 cells. However, in case of mice injected with more than dose of 20mg/kg, tumor growth was not inhibited. The higher prolongation ratios were achieved at levels of 2mg/kg with 31.2% and 4mg/kg with 28.9%. The cytotoxic effect of glycoprotein on sarcoma 180 cells was increased slightly as administering level was increased. Number of total peritoneal exudate cells in all the glycoprotein administered groups increased remarkably meaning that Urechis unicinctus gly coprotein could help to improve immunity. Notable body weight change was not resulted in the glycoprotein treated mice compared with control group, but the ratios of both liver or spleen to body weight were increased in mice injected with 20mg/kg and 40mg/kg. These results suggest that the glycoprotein from Urechis unicinctus could stimulate immunity of the mouse bearing tumor cells. Furthermore, the number of leucocytes was also increased by 38.78% at the dose of 20mg/kg and by 46.30% of control at 40mg/kg, while the lower level of 2mg/kg or 4mg/kg showed no effect in increasing leucocyte number. The biochemical values such as GOT and GPT in serum were not changed in mice injected with glycoprotein in comparision with control group.

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Effects of Black Garlic on the Rheological and Functional Properties of Garlic Fermented by Leuconostoc mesenteroides (흑 마늘 첨가에 따른 마늘 젖산 발효물의 물성 및 기능성평가)

  • Son, Se-Jin;Lee, Sam-Pin
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.39 no.6
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    • pp.864-871
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    • 2010
  • White and black garlic pastes were fermented by Leuconostoc mesenteroides and evaluated for its rheological and functional properties such as consistency, antioxidant and angiotensin converting enzyme inhibitory activity. The pH, acidity and solid content of black garlic paste were 4.60, 1.23%, 22.63%, respectively. The viable cell counts and consistency of fermented garlic was decreased by adding higher amounts of black garlic paste. Fermentation of white garlic (40%)/black garlic (10%) showed viable cell counts of $1.6\times10^{11}$, fluid consistency of 9.31 $Pa{\cdot}s^n$. Water and 70% ethanol extract from fermented garlic showed the polyphenol content of 6.29mg/mL and 5.99 mg/mL, respectively. Also, water extract indicated the DPPH radical scavenging effects and angiotensin converting enzyme (ACE) inhibitory activity with $IC_{50}$ 1.03 mg/mL and $IC_{50}$ 68.54 mg/mL, respectively. ACE inhibitory activity was increased with adding black garlic paste. Conversion of sucrose into dextran polymer in fermented garlic was drastically decreased by the addition of black garlic paste, indicating from 85% (0% black garlic) to 20% (20% black garlic) conversion yield. Garlic paste fermented with 10% black/40% white garlic showed the decrease in consistency and viable cell counts during both cold and freezing storages. In particular, consistency of fermented garlic was lower during freezing storage than cold storage, and the viable cell counts was drastically decreased after storage for 2 weeks.