• Title/Summary/Keyword: stimulating effect

Search Result 850, Processing Time 0.025 seconds

Zinc may increase bone formation through stimulating cell proliferation, alkaline phosphatase activity and collagen synthesis in osteoblastic MC3T3-E1 cells

  • Seo, Hyun-Ju;Cho, Young-Eun;Kim, Tae-Wan;Shin, Hong-In;Kwun, In-Sook
    • Nutrition Research and Practice
    • /
    • v.4 no.5
    • /
    • pp.356-361
    • /
    • 2010
  • Zinc is an essential trace element required for bone formation, however not much has been clarified yet for its role in osteoblast. We hypothesized that zinc would increase osteogenetic function in osteoblasts. To test this, we investigated whether zinc treatment enhances bone formation by stimulating osteoblast proliferation, bone marker protein alkaline phosphatase activity and collagen synthesis in osteoblastic MC3T3-E1 cells. MC3T3-E1 cells were cultured and treated with various concentrations of zinc (0, 1, 3, 15, 25 uM) along with a normal osteogenic medium (OSM) as control for 1, 5, 10 days. As measured by MTT assay for mitochondrial metabolic activity, cell proliferation was stimulated even at low zinc treatment (1-3 ${\mu}M$) compared to OSM, and it was stimulated in a zinc concentration-dependent manner during 5 and 10 days, with the most pronounced effect at 15 and 25 uM Zn. Cellular (synthesized) alkaline phosphatase (ALP) activity was increased in a zinc concentration-dependent manner, so did medium (secreted) ALP activity. Cellular collagen concentration was increased by zinc as time went by, therefore with the maximum zinc stimulatory effect in 10 days, and medium collagen concentration showed the same pattern even on 1 and 5 day. This zinc stimulatory effect of collagen synthesis was observed in cell matrix collagen staining. The study results imply that zinc can increase osteogenic effect by stimulating cell proliferation, ALP activity and collagen synthesis in osteoblastic cells.

General Pharmacology of Recombinant Human Granulocyte-colony Stimulating Factor DA-3030 Expressed in E. coli (유전자 재조합 인형 과립구 콜로니 자극인자 DA-3030의 일반약리작용)

  • 배은주;신명수;김순회;강수형;김원배;양중익
    • Biomolecules & Therapeutics
    • /
    • v.2 no.3
    • /
    • pp.281-285
    • /
    • 1994
  • Neutropenia is a major dose-limiting factor in cancer chemotherapy diminishing its usefulness and increase patient's susceptibility to infectious disease. Some recombinant human granulocyte colony stimulating factors(rhG-CSFs) are in use to reduce the risk of this serious side effect. In this study, we examined the pharmacological properties of DA-3030, a rhG-CSF expressed in E. coli. DA-3030 100 and $\mu\textrm{g}$/kg, i. v., had no significant effect on the central nervous, gastrointestinal system in mice and cardiovascular system in rabbits, but it slightly inhibited the spontaneous motility of isolated nonpregnant uterus in rats. It also had no influence on excretion of urinary electrolytes. DA-3030 administered for successive 3 days increased the blood WBC count in zymosan air pouch inflammed rats and in normal rats. These results indicate that DA-3030 has little side effects in animals.

  • PDF

Immuno-stimulating, Anti-stress and Anti-thrombotic Effects of Unossified Velvet Antlers

  • Shin, Kuk-Hyun;YunChoi, Hye-Sook;Lim, Soon-Sung;Won, Do-Hee;Kim, Jae-Kun
    • Natural Product Sciences
    • /
    • v.5 no.1
    • /
    • pp.54-59
    • /
    • 1999
  • Both ethanol and water extracts of unossified velvet antler were found to exhibit a significant immuno-stimulating activity as measured by carbon clearance test in mice, a remarkable anti-fatigue effect in weight-loaded forced swimming performance in mice, a significant anti-stress effect on immobilization in rats. The antler extracts also showed a weak but significant anti-thrombotic activity. These findings are indicative of adaptogenic properties of antlers and their normalizing effects during stressful condition.

  • PDF

Immunostimulating Effect of Palmiboshinwhan (baweibushenwan) Extracts in Methotrexate-induced Immunosuppressed SD rats. (팔미보신환(八味補腎丸)이 Methotrexate로 유발(誘發)된 SD Rat의 면역기능저하(免疫機能低下)에 미치는 영향(影響))

  • Kang, Seok-Bong
    • The Journal of Korean Medicine
    • /
    • v.29 no.3
    • /
    • pp.21-37
    • /
    • 2008
  • Objectives: The purpose of this study was to verify the effect of Palmiboshinwhan (PMBSW) in methotrexate (MTX)-induced immunosuppressed SD rats. Methods: The test articles were once a day dosed for 14 days by gastric gavage from 2 days after last MTX-dosing, and changes in body weight, spleen weight and total blood leukocyte numbers were observed with total lymphocyte numbers, B and T lymphocyte percentages, CD3+CD4+, CD3+/CD8+, CD4+/CD8+ T lymphocyte percentages in the blood and spleen, the serum interleukin (IL)-2 levels and the productivity of IL-2 of splenic cells. Result & Conclusion: It is concluded that PMBSW has relatively good immunostimulating effect in the MTX-induced immunosuppressed SD rats. Theefficient dosage was considered above 500mg/kg. In addition, it is considered that the immunostimulating effect of PMBSW was mediated to both the B and T lymphocytes. The more favorable effects were detected in T lymphocytes rather than B lymphocytes, and PMBSW showedrelatively good stimulating potential against CD4+ T lymphocytes but not any stimulating effect against CD8+ T lymphocytes in the present study.

  • PDF

The Response to Postmodern Fashion Advertisement and Advertising Effect (포스트모던 패션광고에 대한 반응과 광고효과)

  • Choi, Sun-Hyung
    • Journal of the Korean Society of Clothing and Textiles
    • /
    • v.32 no.2
    • /
    • pp.328-339
    • /
    • 2008
  • The purpose of this study is to investigate the difference of the response to fashion ad and its effect between traditional ad and postmodern ad, to examine the difference of the response to fashion ad and its effects according to sensation seeking tendency, and to investigate the effect of the response to fashion ad on its effect. For the purposes of this study, two postmodern ads and one traditional ad were selected as stimuli and data were collected from 230 female college students. The results are as follows: 1) Postmodern advertisement was unique, impacting, hard-to-understand, sensory-stimulating, and fantastic, when compared to traditional advertising. 2) Consumers felt disgusted by confusion and shock coming from postmodern advertising, but at the same time, recognized its value as an advertisement and took more pleasure and fun from it. 3) Consumers with high sensation-seeking-tendency perceived postmodern ads more sensually and showed more positive response to the postmodern ads. 4) While subjective, emotional response affected the attitude toward advertisements, sensory-stimulating affected the attitude toward brand and purchase intention. Thus, cognitive response should also be considered significant to form brand equity in long term.

Effect of Low Dose γ Radiation on the Dormancy Breaking and Growth of in vitro Microtubers of Potato (Solanum tuberosum L.) Stored at Low Temperature (저선량 방사선이 저온 저장한 감자 기내 소괴경의 휴면타파와 생육에 미치는 효과)

  • Kim, Jae-Sung;Kim, Dong-Hee;Back, Myung-Hwa;Jeon, Jae-Heung;Lee, Young-Bok
    • Horticultural Science & Technology
    • /
    • v.19 no.4
    • /
    • pp.515-520
    • /
    • 2001
  • To observe the stimulating effect of low dose ${\gamma}$ radiation on the dormancy breaking and growth, microtubers of two potato cultivars (Solanum tuberosum L. cv. Dejima and cv. Superior) were irradiated at the dose of 0.5-30 Gy. Though it varied with cultivars and storage duration, sprouting rate, plant growth and tuber yield were promoted by 2-8 Gy irradiation in microtuber of 'Dejima' stored at low temperature. On the other hand, in microtuber of 'Superior', sprouting rate was promoted by 2 and 4 Gy irradiation, and the growth and tuber yield by 4 Gy irradiation. These results suggest that low dose of ${\gamma}$ radiation could have stimulating effects on the dormancy breaking of microtuber and potato growth.

  • PDF

Granulocyte Macrophage-Colony Stimulating Factor Signaling in Development of Mouse Embryos (Granulocyte Macrophage Colony Stimulating Factor에 의한 생쥐 초기 배아 발생의 신호전달)

  • Suh, Hye-Young;Chung, Kyu-Hoi;Kang, Byung-Moon;Gye, Myung-Chan
    • Clinical and Experimental Reproductive Medicine
    • /
    • v.30 no.1
    • /
    • pp.5-14
    • /
    • 2003
  • Objective: Present study was aimed to verify the effect of granulocyte macrophage-colony stimulating factor (GM-CSF) in the preimplantation development of mouse embryos and the involvement of the mitogen activated protein kiase (MAPK) in the GM-CSF signaling. Methods: Two-cell embryos were cultured for 96 h in the presence or absence of GM-CSF (0, 0.4, 2, 10 ng/ml) and PD98059, a MEK inhibitor (10 ${\mu}M$). Morphological development, cell number per blastocyst, and apoptotic nuclei, were eamined. MAPK activity of embryonic immunoprecipitate by MAPK (ERK1/2) antibody was measured by in vitro phosphorylation of myelin basic protein. Results: At post hCG 122 h the embryonic development among the experimental groups was significantly different (p=0.018). The rate of blastocyst development and cell number per embryo were the highest in 2 ng/ml GM-CSF treatment group. The percent of apoptotic cells of the GM-CSF-treated embryos was the lowest among the group. In blastocysts, GM-CSF treatment transiently increased MAPK activity. PD098059 attenuated the effect of GM-CSF on the morphological development, increase in cell number per blastocyst, down regulation of apoptosis, and upregulation of MAPK activity, suggesting that activation of MAPK cascade possibly mediated the embryotropic effect of GM-CSF. Conclusion: This result suggested that GM-CSF potentiated the development of preimplantation mouse embryos by activation of MAPK.

Combined Effect of Granulocyte-Colony-Stimulating Factor-Induced Bone Marrow-Derived Stem Cells and Red Ginseng in Patients with Decompensated Liver Cirrhosis (Combined Effect of G-CSF and Red Ginseng in Liver Cirrhosis)

  • Kim, Hyun Hee;Kim, Seung Mo;Kim, Kyung Soon;Kwak, Min A;Kim, Sang Gyung;Kim, Byung Seok;Lee, Chang Hyeong
    • The Journal of Korean Medicine
    • /
    • v.37 no.4
    • /
    • pp.36-44
    • /
    • 2016
  • Objectives: Granulocyte-colony-stimulating factor (G-CSF) mobilized bone marrow (BM)-derived hematopoietic stem cells could contribute to improvement of liver function. In addition, liver fibrosis can reportedly be prevented by the Rg 1 component of red ginseng. This study investigated the combined effect of G-CSF and red ginseng on decompensated liver cirrhosis. Methods: Four patients with decompensated liver cirrhosis were injected with G-CSF to proliferate BM stem cells for 4 days ($5{\mu}g/kg$ bid subcutaneously) and followed-up for 3 months. The patients also received red ginseng for 4 days (2 tablets tid per os). We analyzed Child-Pugh scores, Model for End-Stage Liver Disease (MELD) scores and cirrhotic complications. Results: All patients showed marked increases in White blood cell (WBC) and CD34+ cells in the peripheral blood, with a peak time of 4 days after G-CSF injection. Spleen size also increased after G-CSF injection, but not severely. At end of the study, 2 patients showed improvement in Child-Pugh scores, hepatic encephalopathy, and refractory ascites. During the clinical trial period, none of the 4 patients showed any other adverse events or deterioration of liver function. Conclusions: We conclude that G-CSF/red ginseng combination therapy is relatively effective in improving liver function and major complications of decompensated liver cirrhosis without adverse effects. Further clinical trials are warranted to assess the clinical effects of G-CSF for decompensated liver cirrhosis.

Anti-inflammatory Effect of Angelicae Gigantis Radix Water Extract on LPS-stimulated Mouse Macrophages (Lipopolysaccharide로 유발된 마우스 대식세포의 염증매개성 Cytokine 생성증가에 대한 참당귀 물추출물의 효능 연구)

  • Han, Hyo-Sang
    • The Korea Journal of Herbology
    • /
    • v.28 no.5
    • /
    • pp.113-119
    • /
    • 2013
  • Objectives : The purpose of this study was to investigate the effects of Angelicae Gigantis Radix Water Extract(AG) on the production of proinflammatory mediators in RAW 264.7 cells stimulated with lipopolysaccharide(LPS). Method : RAW 264.7 cells were cotreated with AG(50 and 100 ug/mL) and lipopolysaccharide(LPS; 1 ug/mL) for 24 hours. After 24 hour treatment, using Bead-based multiplex cytokine assay, concentrations of various cytokines such as interleukin(IL)-6, IL-$1{\beta}$, IL-10, tumor necrosis factor-alpha(TNF-${\alpha}$), granulocyte colony-stimulating factor(G-CSF), granulocyte macrophage colony-stimulating factor(GM-CSF), interferon inducible protein-10(IP-10), leukemia inhibitory factor(LIF), lipopolysaccharide-induced chemokine(LIX), monocyte chemoattractant protein-1(MCP-1), macrophage colony-stimulating factor(M-CSF), macrophage inflammatory protein(MIP)-$1{\alpha}$, MIP-$1{\beta}$, MIP-2, Regulated on Activation, Normal T cell Expressed and Secreted(RANTES) and vascular endothelial growth factor(VEGF) were measured. Result : AG significantly inhibited LPS-induced production of TNF-${\alpha}$, MIP-$1{\alpha}$, G-CSF, RANTES, IL-10, and M-CSF from LPS-stimulated RAW 264.7 cells at the concentrations of 50 and 100 ug/mL. AG significantly inhibited LPS-induced production of MIP-$1{\beta}$, MIP-2, GM-CSF, and IL-6 from LPS-stimulated RAW 264.7 cells at the concentrations of 50 ug/mL. AG significantly inhibited LPS-induced production of VEGF from LPS-stimulated RAW 264.7 cells at the concentrations of 100 ug/mL. But AG did not show any significant effect on the production of MCP-1, LIF, LIX, IP-10 and IL-$1{\beta}$ from LPS-induced RAW 264.7 cells. Conclusion : These results suggest that AG has anti-inflammatory effect related with its inhibition of proinflammatory mediators such as TNF-${\alpha}$, MIP-$1{\alpha}$, G-CSF, RANTES, IL-10, MIP-$1{\beta}$, MIP-2, GM-CSF, IL-6, VEGF and M-CSF in LPS-induced macrophages.