• 제목/요약/키워드: COX-2$TNF-{\alpha}$

검색결과 565건 처리시간 0.032초

갈근해기탕가미방(葛根解肌湯加味方)과 삼황세제가미방(三黃洗劑加味方) 병용이 NC/Nga 생쥐의 아토피 피부염에 미치는 영향 (Effects of Galgeunhaegitang-gamibang Administration along with Samhwangseze-gamibang on Atopic Dermatitis of NC/Nga Mice)

  • 황치환;윤채성;송승현;원영호;황충연
    • 한방안이비인후피부과학회지
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    • 제21권2호
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    • pp.1-18
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    • 2008
  • Objectives: Galgeunhaegitang-gamibang(GH) and Samhwangseze-gamibang(SG) has been known that they are helpful for treatment of atopic dermititis clinically, but there is no report about the effect of GH and SG. So, author aimed to investigate the effects of GH and SG on atopic dermititis of NC/Nga mice. Methods : NC/Nga mice were divide into three group : normal, control, and experimental group. Atopic dermatitis was induced in the control and experimental group by spreading DNCB. Then GH was orally administered three times in a week for 8 weeks to the experimental group and SG was spreaded two times in a day for 8 weeks to the experimental group, while the control group was given normal saline. We observed changes of clinical skin severity score, serum IgE, IL-4, IL-4, IL-5, IL-6, IgM, IgGl, $IFN-{\gamma}$ and so on. We used one-way ANOVA test statistically(p<0.01). Results : Clinical skin severities of experiment group in 13 and 16weeks were significantly decreased by 48% and 55% compared to the control group. Serum IgE, IL-4, IL-5, IL-6, IgM, IgGl levels of experimental group were singnificantly decreased compared to the control group. Serum $IFN-{\gamma}$ level of the experimental group was significantly increased against control group. mRNA expression levels of IL-4, IL-5, IL-6 and CCR3 in the skin tissues of experimental group were significantly decreased compared to the control group. In contrary, $IFN-{\gamma}$y mRNA expression level were increased compared to the control group. Histological observation of the ear and skin tissues showed that the extents of inflammation and infiltrated immune cells in the epidermis and dermis of experimental group were highly deminished compared to the control group. Judging from that $IL-1{\beta}$, $TNF-{\alpha}$, IL-6 expression of gene, the effects of inflammatory cytokine revelation were significantly decreased compared to the control group. In the model inducing COX-2 activity in RAW 264.7 cell, COX-2 activity was significantly inhibited depending on the density of GH compared to the control serum. According to cell multiplication, examination of cell toxicity showed that GH is safe at the density of 10, 50, 100mg/l and even 1000mg/l. Conclusion : Accordin to the above results, it is considered that GH and SG is effective treatment for the atopic dermatitis.

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LPS로 유도된 RAW 264.7 세포와 마우스 귀 조직에 대한 양파(Allium cepa L.) 껍질 에탄올 추출물의 항염증 효과 (Anti-Inflammatory Effect of Ethanol Extract from Onion (Allium cepa L.) Peel on Lipopolysaccharide-Induced Inflammatory Responses in RAW 264.7 Cells and Mice Ears)

  • 안나경;강보경;김꽃봉우리;김민지;배난영;박지혜;박선희;안동현
    • 한국식품영양과학회지
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    • 제44권11호
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    • pp.1612-1620
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    • 2015
  • 양파 껍질 에탄올 추출물(OPEE)의 in vitro 및 in vivo에서 항염증 효과를 알아보기 위해 lipopolysaccharide(LPS)로 활성화된 RAW 264.7 세포로부터 분비되는 염증 관련 매개인자들의 발현량과 ICR 마우스모델을 이용한 귀 부종 및 조직 분석을 진행하였다. NO 및 염증성 cytokine(IL-6, $IL-1{\beta}$$TNF-{\alpha}$)의 분비량이 OPEE에 의해 농도 의존적으로 감소함을 확인하였다. iNOS 및 COX-2의 발현량은 LPS에 의해 증가하였으나, OPEE 처리에 의해 농도 의존적으로 발현량이 감소하였다. 전사인자인 $NF-{\kappa}B$의 활성과 인산화효소인 MAPKs(p-38, JNK 및 ERK)에서도 LPS에 의해 증가된 발현량이 OPEE에 의해 억제됨을 확인하였다. 따라서 NO 및 염증성 cytokine의 분비량 감소는 $NF-{\kappa}B$와 MAPKs의 활성 저해에 의한 것임을 확인하였다. In vivo 실험에서는 croton oil로 귀 부종을 유발한 마우스에 OPEE를 처리하였을 때 prednisolone 처리구와 유사한 수준으로 귀 부종이 억제되었으며, 귀 조직 관찰에서도 경피 및 진피의 두께와 진피로 침윤된 mast cell의 수도 억제됨을 확인하였다. 이상의 결과 OPEE는 항염증 소재로서 염증을 예방하거나 치료하는 데 이용 가능성이 높음을 제시한다.

Anthocyanins from Hibiscus syriacus L. Attenuate LPS-Induced Inflammation by Inhibiting the TLR4-Mediated NF-κB Signaling Pathway

  • Karunarathne, Wisurumuni Arachchilage Hasitha Maduranga;Molagoda, Ilandarage Menu Neelaka;Lee, Kyoung Tae;Choi, Yung Hyun;Kang, Chang-Hee;Jeong, Jin-Woo;Kim, Gi-Young
    • 한국자원식물학회:학술대회논문집
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    • 한국자원식물학회 2019년도 추계학술대회
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    • pp.92-92
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    • 2019
  • Excessive or chronic inflammation contributes to the pathogenesis of many inflammatory diseases such as sepsis, rheumatoid arthritis, and ulcerative colitis. Hibiscus syriacus L. has been used as a medicinal plant in many Asian countries, even though its anti-inflammatory activity has been unclear. Therefore, we investigated the anti-inflammatory effect of anthocyanin fractions from the H. syriacus L. varieties Pulsae (PS) on the lipopolysaccharide (LPS)-induced expression of proinflammatory mediators and cytokines in RAW264.7 macrophages. PS suppressed LPS-induced nitric oxide (NO) and prostaglandin $E_2$ ($PGE_2$) secretion concomitant with downregulation of inducible NO synthase (iNOS) and cyclooxygenase-2 (COX-2) expression. Furthermore, PS inhibited the production of proinflammatory cytokines such as tumor necrosis factor-alpha ($TNF-{\alpha}$), interleukin-6 (IL-6), and IL-12 in LPS-stimulated RAW264.7 macrophages. Further study showed that PS significantly decreased LPS-induced nuclear translocation of the nuclear $factor-{\kappa}B$ ($NF-{\kappa}B$) subunits, p65 and p50. Molecular docking data showed that many anthocyanins from PS fit into the hydrophobic pocket of MD2 and bound to Toll-like receptor 4 (TLR4), indicating that PS inhibits the TLR4-MD2-mediated inflammatory signaling pathway. Especially, apigenin-7-O-glucoside most powerfully bound to MD2 and TLR4 through LYS122, LYS122, and SER127 at a distance of $2.205{\AA}$, $3.098{\AA}$, and $2.844{\AA}$ and SER441 at a distance of $2.873{\AA}$ (docking score: -8.4) through hydrogen bonding, respectively. Additionally, PS inhibited LPS-induced TLR4 dimerization/expression on the cell surface, which consequently decreased MyD88 recruitment and IRAK4 phosphorylation. PS completely blocked LPS-mediated mortality in zebrafish larvae by diminishing the recruitment of neutrophil and macrophages accompanied by low levels of proinflammatory cytokines. Taken together, our results indicate that PS attenuates LPS-mediated inflammation in both in vitro and in vivo by blocking the TLR4/MD2-MyD88/IRAK4-$NF-{\kappa}B$ axis. Therefore, PS might be used as a novel modulatory candidate for effective treatment of LPS-mediated inflammatory diseases.

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잔대 추출물의 항염 및 항천식 효과 (Anti-Inflammatory and Anti-Allergic Effects of Adenophora triphylla var. japonica Extract)

  • 장환희;김미주;조수연;김정봉;이성현;이영민
    • 동아시아식생활학회지
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    • 제25권5호
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    • pp.813-821
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    • 2015
  • Asthma is an increasing global health problem, and novel strategies to prevent or ameliorate the condition are needed. The purpose of the present study was to evaluate the anti-inflammatory and anti-asthma effects of Adenophora triphylla var. japonica extracts. We investigated the molecular mechanism underlying the effects of 80% ethanol extracts (AE) of A. triphylla on lipopolysaccharide (LPS)-stimulated RAW 264.7 cells. AE treatment inhibited pro-inflammatory cytokines such as TNF-${\alpha}$ and IL-6 as well as nitric oxide (NO) production in LPS-stimulated RAW 264.7 cells. In particular, NO and pro-inflammatory cytokine production was suppressed more effectively by aerial parts (AE-A) than roots (AE-R) of A. triphylla. Quantitative RT-PCR assay showed that AE reduced mRNA levels of iNOS and COX-2. We also evaluated the anti-asthmatic effects of AE-A in an ovalbumin (OVA)-induced BALB/c mouse model. AE-A supplementation significantly reduced the amounts of airway eosinophils, IL-4 and IL-13 levels in BALF, and IgE levels in serum as compared with untreated, OVA-induced mice. These results suggest that AE-A can be considered as a therapeutic agent to potentially relieve asthma.

Anti-inflammation effect of Exercise and Korean red ginseng in aging model rats with diet-induced atherosclerosis

  • Lee, Jin;Cho, Joon-Yong;Kim, Won-Kyu
    • Nutrition Research and Practice
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    • 제8권3호
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    • pp.284-291
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    • 2014
  • BACKGROUND/OBJECTIVES: The aim of this study was to investigate the effects of exercise (EX) and Korean red ginseng (KRG) on inflammation mechanism in aging model rats with diet-induced atherosclerosis. MATERIALS/METHODS: Forty-eight male Sprague-Dawley rats were divided into 6 groups: Young control (Y-C), Aging control (A-C), A-C with HFD (AHF), AHF with EX (AHF-EX), AHF-EX with KRG (AHF-EX+RG), and AHF with KRG (AHF-RG). Aging was induced by D-gal (100mg/kg) and atherosclerosis was induced by HFD (60% fat) for 9 weeks. The experimental rats were performed swimming (60 min/day, 5 days/week) and supplied KRG orally (dose of 200 mg/kg) for 8 weeks. All rat aorta samples were harvested for biochemical and immunohistochemical analyses. REULTS: The EX and KRG supplementation significantly inhibited body weight and levels of TC, TG, LDL-C, and enhance of HDL-C compared with untreated AHF groups. AHF-EX, AHF-EX+RG, and AHF-RG group showed a decreased plasma CRP and increase plasma NO activities compared to AHF group. In addition, these groups revealed reduced 4-HNE, NF-kB, TNF-, ${\alpha}$, IL-6, COX-2, ICAM-1, VCAM-1 and enhanced eNOS expression in the aorta. CONCLUSION: These results suggest that EX alone, KRG alone, and combined treatment of EX and KRG may be an effective anti-inflammatory therapeutic for the atherosclerosis, possibly acting via the decreased of CRP and pro-inflammation proteins and the increased NO and eNOS.

數種의 한약이 피부질환과 관련된 균주 6종에 미치는 항균력 및 木香이 염증기전에 미치는 영향 (Anti-microbial Activity of Various Herbal Extracts on Six Types of Bacteria Related to Skin Diseases and Effects of Saussurea lappa Exteract on Inflammatory Mechanism)

  • 박수연;김종한;최정화
    • 한방안이비인후피부과학회지
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    • 제17권1호
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    • pp.104-125
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    • 2004
  • This study was carried out to investigate the anti-microbial of various herbal extracts on six types of bacteria related to skin diseases and effects of Saussurea lappa extract on dermatitis and acne. The results are followed ; 1. In the experiment on P. acnes using paper disk methods, Eugenia caryophyllata extract made 19mm clear zone, Saussurea lappa extract and Morus alba extract made 13mm and MIC of Morus alba extract and Eugenia caryophyllata extract was below 0.01$\%$. 2. In the experiment on S. aureus, extract of Eugenia caryophyllata, Poncirus trifoliata and Rubus coreanus made 9-10mm clear zone. 3. In the experiment on C. xerosis, Sesamum indicum extract made 16mm clear zone and MIC of that was 0.3$\%$. 4. In the experiment on C. albicans, extract of Cinnamomum cassia, Eugenia caryophyllata and Asparagus cochinchinensis made 9-10mm clear zone. 5. In the experiment on P. ovale, Cinnamomum cassia extract made 25mm clear one, MIC of that was 0.05$\%$. 6. In the experiment on T. mentagrophytes, Cinnamomum cassia extract made 26mm clear zone, extract of Eugenia caryophyllata, Rhizoma kaempferiae, Piper longum, Saussurea lappa and Zingiber officinale made 18-22mm clear zone, MIC of all extracts was below 0.02$\%$. 7. Saussurea lappa extract inhibited 85$\%$ and 28$\%$ of NO production at 50㎍/㎖ and 5 ㎍/㎖ 8. Saussurea lappa extract inhibited activity of COX Ⅱ over 50$\%$ at 10㎍/㎖ 9. Saussurea lappa extract had not radical scavenging activity and Saussurea lappa extract didn't inhibit manifestation of IL-1${\beta}$, IL-6 and TNF-${\alpha}$, and activity of 50- reductase I.

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Suppression of Inflammatory Responses by Black Rice Extract in RAW 264.7 Macrophage Cells via Downregulation of NF-kB and AP-1 Signaling Pathways

  • Limtrakul, Pornngarm;Yodkeeree, Supachai;Pitchakarn, Pornsiri;Punfa, Wanisa
    • Asian Pacific Journal of Cancer Prevention
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    • 제16권10호
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    • pp.4277-4283
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    • 2015
  • Anthocyanin, a phenolic compound, has been reported to have an anti-inflammatory effect against lipopolysaccharide (LPS) induced changes in immune cells. However, little is known about the molecular mechanisms underlying its anti-inflammatory effects. Few research studies have concerned the anti-inflammation properties of colored rice extract as a functional material. Therefore, the purpose of this study was to examine anti-inflammatory effects of the polar fraction of black rice whole grain extracts (BR-WG-P) that features a high anthocyanin content. Our results showed that BR-WG-P significantly inhibited LPS-induced pro-inflammatory mediators, including production of NO and expression of iNOS and COX-2. In addition, secretion of pro-inflammatory cytokines including TNF-${\alpha}$ and IL-6 was also significantly inhibited. Moreover, BR-WG-P and anthocyanin inhibited NF-kB and AP-1 translocation into the nucleus. BR-WG-P also decreased the phosphorylation of ERK, p38 and JNK in a dose dependent manner. These results suggested that BR-WG-P might suppress LPS-induced inflammation via the inhibition of the MAPK signaling pathway leading to decrease of NF-kB and AP-1 translocation. All of these results indicate that BR-WG-P exhibits therapeutic potential associated with the anthocyanin content in the extract for treating inflammatory diseases associated with cancer.

Antioxidant and Anti-inflammatory Properties of Raw and Processed Fruits and Vegetables

  • Lee, Yuan Yee;Saba, Evelyn;Kim, Minki;Rhee, Man Hee;Kim, Hyun-Kyoung
    • 대한의생명과학회지
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    • 제24권3호
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    • pp.196-205
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    • 2018
  • Reactive oxygen species (ROS) generated from metabolic reactions cause oxidative DNA damage, which results in oxidative tissue injury. Therefore, there is an increasing demand in the intake of high antioxidant sources in order to maintain a healthy environment in cells. In this study, we investigated the antioxidant and anti-inflammatory activities of Malus domestica (apple), Pyrus communis L. (pear), Daucus carota L. (carrot), Brassica oleracea var. (broccoli), Brassica oleracea var. capitata (cabbage), and Raphanus sativus L. (radish) obtained from the local market. Since these are common fruits and vegetables that are widely consumed, we aimed to investigate their beneficial properties, placing particular emphasis on their antioxidant and anti-inflammatory properties. The samples were processed via an indirect heating method and their properties were compared to their raw forms. Based on DPPH and ABTS assays, processed samples showed better antioxidant activities when compared to raw samples and processed pear samples exhibited the best antioxidant activity. The anti-inflammatory activities of the samples were also investigated in LPS-treated RAW 264.7 cells. mRNA expression of pro-inflammatory mediators and cytokines (iNOS, COX-2, $TNF-{\alpha}$, $IL-1{\beta}$, and IL-6) was assessed using RT-PCR. As expected, processed samples exhibited better iNOS inhibition when compared to their raw forms and processed broccoli and cabbage samples exhibited outstanding anti-inflammatory effects. The samples, up to 1 mg/mL concentration, did not exhibit cytotoxicity against RAW 264.7 cells as demonstrated by cell viability assays. Altogether, processed broccoli and cabbage samples exhibited the strongest anti-inflammatory properties.

Anti-Inflammatory Effects of Grasshopper Ketone from Sargassum fulvellum Ethanol Extract on Lipopolysaccharide-Induced Inflammatory Responses in RAW 264.7 Cells

  • Kim, Min-Ji;Jeong, So-Mi;Kang, Bo-Kyeong;Kim, Koth-Bong-Woo-Ri;Ahn, Dong-Hyun
    • Journal of Microbiology and Biotechnology
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    • 제29권5호
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    • pp.820-826
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    • 2019
  • This study evaluated the anti-inflammatory potential of a grasshopper ketone (GK) isolated from the brown alga Sargassum fulvellum on lipopolysaccharide (LPS)-induced RAW 264.7 murine macrophage cell line. GK was isolated and purified from the n-hexane fraction and its structure was verified on the basis of NMR spectroscopic data. GK up to $100{\mu}g/ml$ is not cytotoxic to RAW 264.7, and is an effective inhibitor of LPS-induced NO production in RAW 264.7 cells. The production of pro-inflammatory cytokines, including IL-6, $IL-1{\beta}$, and $TNF-{\alpha}$ was found significantly reduced in $0.1-100{\mu}g/ml$ dose ranges of GK treatment (p < 0.05). We confirmed the dose-dependent and significant inhibition of iNOS and COX-2 proteins expression. In addition, it has been shown that GK induces anti-inflammatory effects by inhibiting MAPKs (ERK, JNK, and p38) and $NF-{\kappa}B$ p65 phosphorylation. Our results show that the anti-inflammatory properties of GK may be due to the inhibition of the $NF-{\kappa}B$ and MAPKs pathways, which are associated with the attenuation of cytokine secretion.

당귀음자(當歸飮子)와 삼황세제가미방(三黃洗齊加味方) 병용이 NC/Nga 아토피 생쥐에 미치는 영향 (Effects of Danggwieumja Administration along with Samhwangseje-gamibang on NC/Nga Atopic Mice)

  • 송성필;손대범;황치환;송승현;황충연
    • 동의생리병리학회지
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    • 제21권5호
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    • pp.1210-1218
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    • 2007
  • Recently Atopic Dermatitis(AD) is increasing along with allergic disease. At present, there is no infallible cure for AD. Then AD patients undergo great suffering. This study is carried out to see whether or not the administering Danggwieumja(DG) along with Samhwangseje-gamibang(SG} as a medicine for external aplication, is effective in treating atopic dermatitis. To examine the effectiveness of the above prescription, the author made an observation of diverse immune responses. through the model of NC/Nga atopic mice. Results provided evidence that the DG administration along with SG can be used as a treatment means to atopic dermatitis. The results are as follows: The extent of Clinical skin severities in 13 and 16 week old NC/Nga mice treated with DG and SG, were reduced by 50.9%, 53.9% respectively, compared to the control NC/Nga mice with no drug treatment. IgE, IL-4, IL-5, IL-6, IgM and IgG1 levels in the serum of the NC/Nga mice treated with DG and SG were significantly decreased compared to those of the untreated control mice. In contrary, to the $IFN-{\gamma}$ level, significantly increased. The spleen weight of the NC/Nga mice treated with DG and SG significantly decreased compared to those of the untreated control mice. CCR3 gene expression in the skin tissue of NC/Nga mice treated with DG and SG were highly decreased, and the IL-6 expression significantly decreased, and the $IFN-{\gamma}$ gene expression increased compared to those of the untreated control mice. Histological observation of the ear and dorsal skin tissue of the NC/Nga mice treated with DG and SG, showed that the extents of inflammation and infiltrated immune cells in the epidermal tissue and dermis, were highly reduced compared to those of the untreated control mice. In the model inducing COX-2 activity in RAW 264.7 cell, the denser DG became, the more COX-2 activity was inhibited, compared to those of the untreated control group. $IL-1{\beta}$, and $TNF-{\alpha}$, IL-6 gene expression in RAW 264.7 cell with DG, significantly decreased, compared to those of the untreated control group. According to the assessment of cell toxicity in L929 cell, the rate of cell multiplication increased by 3% in consistency to 100ppm of DG compared to the untreated control group and in more than the 200 ppm consistency, cell toxicity was occurred.