• 제목/요약/키워드: HMC-1

검색결과 202건 처리시간 0.022초

인삼의 총사포닌, Ginsenoside-$Rb_1$, Ginsenoside-$Rb_2$와 Lovastatinul 의한 Hep G2 세포의 HMG CoA Reductase 및 LDL수용체 mRNA 발현 유발효과의 비교 (Comparison of the Effects of Ginseng Total Saponin, Ginsenoside-$Rb_1$, Ginsenoside-$Rb_2$ and Lovastatin on the Expression of mRNAs for HMG CoA reductase and LDL Receptor)

  • 노연희;임그리워;구자현
    • Journal of Ginseng Research
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    • 제20권3호
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    • pp.241-247
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    • 1996
  • The effects of ginseng total saponin, ginsenoside-Rb, and -Rb, on the reduction of chmlesterol level and the myNA expression rates of HMG CoA reductase and LDL receptor in Hep G2 were investigated and compared with that of lovastatin, a competitive HMG CoA reductase Inhibitor. The amounts of cholesterol in Hep G2 decreased in total saponin-and ginsenoside-treated groups as compared with that of control group, while there was no significant reduction in lovastatin-treated group. The mRNA expression rates of HMG CoA reductase increased in total saponin and gin- senoside groups except for ginsenoside-Rb, (10-3%) group and decreased in lovastatin group com- pared with that of control group. The mRNA expression rates of LDL receptor generally increased In all of the test groups except for total saponin (10-5%) group compared with that of control group. Because the ginseng components tested were more effective in the reduction of cholesterol level in Hep G2 than lovastatin and induced the gene expression of LDL receptor, we suggest the possibility that they could be used as a replacement agent for lovastatin which can not be prescribed especially to patients with hepatic diseases.

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한방 복합추출물이 알레르기성 접촉피부염과 항염증에 미치는 영향 (Effects of mixture extract on allergic contact dermatitis and anti-inflammatory)

  • 장영아;이진태
    • 대한본초학회지
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    • 제29권2호
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    • pp.55-60
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    • 2014
  • Objectives : The aim of this study was to evaluate whether herb mixture extract (HME) would affect allergic contact dermatitis induced by 1-chloro-2,4-dinitro-chlorobenzene (DNCB) in mice. For this, the level of blood IgE was identified. To evaluate anti-inflammatory effect of HME, we tested HMC-1 cells stimulated by PMA+A231867. Methods : In order to evaluate allergic contact dermatitis effects we observed HME on contact-hypersensitive skin of Balb/cmice induced by 0.5% DNCB and measured concentration of IgE in blood of Balb/c mice. In order to evaluate anti-inflammatory effect of cytokine expression we used the method of enzyme-linked immunosorbent assay. Results : We confirmed deep wounds, erosions, progress of keratinization and drop out of dead skin cells from Balb/c mice induced by 0.5% DNCB. We also observed a remarkable decrease in symptoms of atopic dermatitis in the group that received injection of 200mg/kg HME. In addition, in the measurement outcome for IgE concentration in blood, we confirmed that IgE concentration was increased by treatment with DNCB only, while it was markedly decreased by treatment with HME. We confirmed that cytokine expression decreased through enzyme-linked immunosorbent assay and pERK, pJNK, and pp38 also decreased through western blot test Conclusions : According to the above results, HME has some effect on alleviating symptoms of allergic contact dermatitis and has anti-inflammatory effects.

Bacillus cereus D-3로부터 항고지혈증 HMG-CoA Reductase 저해제의 생산 (Production of an Antihyperlipemial HMG-CoA Reductase Inhibitor from Bacillus cereus D-3)

  • 이대형;이재원;정재홍;이종수
    • 한국미생물·생명공학회지
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    • 제34권1호
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    • pp.52-57
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    • 2006
  • 새로운 고지혈증 예방 제품 개발을 위한 기초 자료를 얻고자 우선 전통 된장으로부터 HMG-CoA reductase 저해 물질을 강력하게 세포외로 생산하는 D-3 세균을 최종 분리 하였다. D-3 균의 미생물학적 특성을 조사한 결과 그람양성의 간균으로 운동성이 있었고 통성 혐기성이였다. 이들 특성과 16S rRNA 염기서열의 분석 결과 등을 종합하여 Bergey's manual로 동정한 결과 Bacillus cereus D-3로 동정되었다. HMG-CoA reductase 저해물질 생산 최적 조건을 조사한 결과 Bacillus cereus D-3를 glucose 2%, corn steep liquor $0.6%,\;K_{2}HPO_4\;0.04%,\;KH_{2}PO_4\;0.05%$를 함유한 Glucose-CSL 배지에 접종하여 $30^{\circ}C$에서 36시간 배양하여 얻은 상등액의 HMC-CoA reductase 저해활성이 39.4% 저해물질을 가장 많이 생성 하였다.

어성초(魚腥草)가 비만세포 매개 염증반응에 미치는 영향 (The Effects of Houttuyniae Herba on the Mast Cell-mediated Inflammatory Responses)

  • 이희조;김경준
    • 한방안이비인후피부과학회지
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    • 제22권2호
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    • pp.60-73
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    • 2009
  • Objective : Houttuyniae Herba is widely used in oriental medicine as a remedy for inflammation. However, as yet there is no clear explanation of how Houttuyniae Herba affects the production of inflammatory cytokine. This study was to determine the effects of Essence extracted from Houttuynia cordata Thunb(HCT) on the mast cell-mediated inflammatory responses. Method : We measured the amount of inflammatory cytokine production induced by the phorbol myristate acetate (PMA) plus calcium ionophore(A23187) in the human mast cell line (HMC-1) incubated with various concentrations of HCT. The TNF-$\alpha$, IL-6 and IL-8 secreted protein levels were measured by the ELISA assay. The TNF-$\alpha$, IL-6 and IL-8 mRNA levels were measured by the RT-PCR analysis. Nuclear and cytoplasmic proteins were exmined by Western blot analysis. The NF-$\kappa$B promoter activity was examined by a luciferase assay. Result : HCT inhibited the PMA + A23187-induced TNF-$\alpha$, IL-6 expression and reduced mRNA of TNF-$\alpha$, IL-6 and IL-8. we observed that HCT suppressed the induction of NF-B activity. In addition, HCT suppressed PMA plus A23187-induced NF-$\kappa$B promoting activity. Conclusion : In this study, we have found that HCT is an inhibitor of NF-$\kappa$B and cytokines on the mast cell-mediated inflammatory responses.

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Hydrolysis by Alcalase Improves Hypoallergenic Properties of Goat Milk Protein

  • Jung, Tae-Hwan;Yun, Sung-Seob;Lee, Won-Jae;Kim, Jin-Wook;Ha, Ho-Kyung;Yoo, Michelle;Hwang, Hyo-Jeong;Jeon, Woo-Min;Han, Kyoung-Sik
    • 한국축산식품학회지
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    • 제36권4호
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    • pp.516-522
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    • 2016
  • Goat milk is highly nutritious and is consumed in many countries, but the development of functional foods from goat milk has been slow compared to that for other types of milk. The aim of this study was to develop a goat milk protein hydrolysate (GMPH) with enhanced digestibility and better hypoallergenic properties in comparison with other protein sources such as ovalbumin and soy protein. Goat milk protein was digested with four commercial food-grade proteases (separately) under various conditions to achieve the best hydrolysis of αs -casein and β-lactoglobulin. It was shown that treatment with alcalase (0.4%, 60℃ for 30 min) effectively degraded these two proteins, as determined by SDS-PAGE, measurement of nonprotein nitrogen content, and reverse-phase high-performance liquid chromatography. Hydrolysis with alcalase resulted in a significant decrease in β-lactoglobulin concentration (almost to nil) and a ~40% reduction in the level of αs-casein. Quantification of histamine and TNF-α released from HMC-1 cells (human mast cell line) showed that the GMPH did not induce an allergic response when compared to the control. Hence, the GMPH may be useful for development of novel foods for infants, the elderly, and convalescent patients, to replace cow milk.

작약탕(芍藥湯) 물 추출물의 항염증작용에 관한 연구 (Study on the Anti-inflammatory Effect of Jakyak-tang Water Extract)

  • 서윤희;강옥화;권동렬;이장석;한종현;이기남;정명수
    • 동의생리병리학회지
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    • 제25권3호
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    • pp.503-509
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    • 2011
  • Jakyaktang(芍藥湯; JYT) exhibits potent anti-inflammatory activity in widely intestinal disease, but its mechanism was undisclosed. To elucidate the molecular mechanisms of JYT on pharmacological and biochemical actions in inflammation, we examined the effect of JYT on pro-inflammatory mediators in phorbol 12-myristate 13-acetate (PMA) plus A23187-induced mast cell and lipopolysaccharide (LPS)-stimulated macrophages. The investigation focused on whether JYT inhibited pro-inflammatory cytokines such as interleukin-6 (IL-6), interleukin-8 (IL-8), tumor necrosis factor-${\alpha}$ (TNF-${\alpha}$) in PMA plus A23187- induced HMC-1 cells and inflammatory madiators such as nitric oxide (NO), TNF-${\alpha}$, IL-6, iNOS, COX-2 in LPS-stimulated RAW 264.7 cells. We found that JYT inhibited LPS-induced NO, TNF-${\alpha}$ and IL-6 productions as well as the expressions of iNOS and COX-2. These results suggest that JYT has inhibitory effects on mast cell-mediated and macropage-mediated inflammation.

Rifampicin Alleviates Atopic Dermatitis-Like Response in vivo and in vitro

  • Kim, Seung Hyun;Lee, Ki Man;Lee, Geum Seon;Seong, Ju-Won;Kang, Tae Jin
    • Biomolecules & Therapeutics
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    • 제25권6호
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    • pp.634-640
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    • 2017
  • Atopic dermatitis (AD) is a common inflammatory skin disorder mediated by inflammatory cells, such as macrophages and mast cells. Rifampicin is mainly used for the treatment of tuberculosis. Recently, it was reported that rifampicin has anti-inflammatory and immune-suppressive activities. In this study, we investigated the effect of rifampicin on atopic dermatitis in vivo and in vitro. AD was induced by treatment with 2, 4-dinitrochlorobenzene (DNCB) in NC/Nga mice. A subset of mice was then treated with rifampicin by oral administration. The severity score and scratching behavior were alleviated in the rifampicin-treated group. Serum immunoglobulin E (IgE) and interleukin-4 (IL-4) levels were also ameliorated in mice treated with rifampicin. We next examined whether rifampicin has anti-atopic activity via suppression of mast cell activation. Rifampicin suppressed the release of ${\beta}$-hexosaminidase and histamine from human mast cell (HMC)-1 cultures stimulated with compound 48/80. Treatment with rifampicin also inhibited secretion of inflammatory mediators, such tumor necrosis factor-${\alpha}$ ($TNF-{\alpha}$) and prostaglandin $D_2$ ($PGD_2$), in mast cells activated by compound 48/80. The mRNA expression of cyclooxygenase 2 (COX-2) was reduced in the cells treated with rifampicin in a concentration-dependent manner. These results suggest that rifampicin can be used to treat atopic dermatitis.

Anti-allergic effects of Perilla frutescens var. acuta Kudo 30% ethanol extract powder

  • Oh, Hyun-A;Kim, Sung-Hoon;Cha, Wung-Seok;Kim, Hyung-Min;Jeong, Hyun-Ja
    • Advances in Traditional Medicine
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    • 제10권3호
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    • pp.173-183
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    • 2010
  • Perilla frutescens var. acuta Kudo (PF) is a traditional Korean medicinal herb for allergic reaction regulation. In the present study, we investigated the effect of 30% ethanol extract powder of PF (EPPF) and rosmarinic acid (RA), the active compound of EPPF on various allergic reactions using in vivo and in vitro models. EPPF and RA significantly inhibited compound 48/48-induced systemic anaphylactic reaction and histamine release (P < 0.05). In addition, EPPF and RA significantly inhibited passive cutaneous anaphylaxis (PCA) in a dose-dependent manner (P < 0.05). These effects were stronger than those of disodium cromoglycate, the reference drug tested. EPPF and RA also significantly inhibited production of inflammatory cytokines, tumor necrosis factor-a interleukin (IL)-6, and vascular endothelial growth factor on the PCA reaction and phorbol 12-myristate 13-acetate and calcium ionophore A23187-stimulated human mast cell line, HMC-1 cells (P < 0.05). Moreover, EPPF and RA showed an inhibitory effect on lipopolysaccharide (LPS)-induced IL-4 production from whole spleen cells. Finally, EPPF and RA significantly decreased IL-4-dependent IgE production by LPS-stimulated whole spleen cells (P < 0.05). In conclusion, these results indicate that EPPF has potent anti-allergic activities.

감초 신품종 및 약전 수재감초의 항알러지 효과 비교 연구 (The Comparative Study of Anti-allergic Effect by Glycyrrhiza New Varieties and Official Compendia)

  • 강윤미;김원남;진종식;이종현;장재기;이정훈;안효진
    • 대한본초학회지
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    • 제35권5호
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    • pp.13-21
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    • 2020
  • Objective : The genus Glycyrrhiza has been used in food and traditional herbal medicine. Many experimental studies reported that Glycyrrhiza species possess several pharmacological properties. Glycyrrhiza new varieties WONGAM and SINWONGAM have been developed by Korea Rural Development Administration doing research for registration on Ministry of Food and Drug Safety. During the evaluations about pharmacological effect of Glycyrrhiza new varieties WONGAM and SINWONGAM, we focused the anti-allergic effect in this study. Methods : We investigated the anti-allergic effect of WONGAM and SINWONGAM compared with Glycyrrhiza uralensis Fischer and G. glabra L. using anti-dinitrophenyl-immunoglobulin E (IgE)/human serum albumin-stimulated RBL-2H3 cells, phorbol 12-myristate 13-acetate plus calcium ionophore A23187-stimulated HMC-1 cells and compound 48/80-induced anaphylaxis mice model. We analyzed the effect on the expression of various cytokines, and IgE from mast cells and the underlying molecular mechanisms of WONGAM and SINWONGAM in presented models. Results : WONGAM and SINWONGAM showed the inhibitory effect on the histamine release from rat peritoneal mast cells or human mast cells without cytotoxicity. WONGAM and SINWONGAM blocked anaphylactic shock and decreased the IgE production. Furthermore, WONGAM and SINWONGAM inhibited the productions of TNF-α and IL-6 in compound 48/80-induced anaphylaxis mice model. Conclusion : These results indicated that WONGAM and SINWONGAM would have protect effect on allergic responses through the inhibition of allergic mediators and pro-inflammatory cytokines. This study may facilitate the development on Glycyrrhiza new varieties for allergy.

방풍의 항염 효과 기전 (Mechanism of Anti-inflammatory Effect of Peucedanum japonicum Thunb)

  • 노성일;김상돈;박성철;서병윤;염승룡;권영달;신병철;송용선
    • 한방재활의학과학회지
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    • 제15권2호
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    • pp.31-43
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    • 2005
  • 목적 : 방풍은 임상적으로 관절염을 포함한 다양한 염증성 질환 치료제로 사용되어 왔다. 본 연구에서는 인간 비만세포를 이용하여 세포 독성에 영향을 주지 않는 농도에서 방풍의 항염 효과 및 그 기전을 검토했다. 방법 : 인간의 HMC-1세포를 IMDM에서 페니실린, 스트렙토마이신, 모노티오글리세린을 첨가하여 배양하고 방품추출액을 투여하였다. 그 다음 MTT, CLISA, RT-PCR, 세포내 칼슘측정, 핵단백분석을 이용하여 TNF-${\alpha}$, IL-6, IL-8 각각의 형성과 mRNA발현, 세포내 칼슘 수준, NF-${\kappa}B$ 발현에 대한 방풍추출액의 반응을 측정하고 통계처리 하였다. 결과 : 방풍은 PMA와 calcium ionophore A23187로 활성화된 비민세포에서 세포내 칼슘 수준과 NF-${\kappa}B$, TNF-${\alpha}$와 IL-6의 발현을 억제시켰고 RT-PCR을 이용한 mRNA 발현에서 TNF-${\alpha}$와 IL-6의 발현을 억제하였다. 결론 : 방풍은 비만세포내 칼슘 수준 및 NF-${\kappa}B$의 활성을 억제하고 염증성 세포 활성 물질인 TNF-${\alpha}$와 IL-6의 분비도 억제하여 항염효과를 나타냄을 암시하고 있다.