• 제목/요약/키워드: anti inflammatory

검색결과 6,022건 처리시간 0.032초

Anti-Inflammatory Effects of Abalone (Haliotis discus hannai) Viscera via Inhibition of ROS Production in LPS-Stimulated RAW 264.7 Cells

  • Shin, Tai-Sun;Choi, Kap Seong;Chun, Jiyeon;Kho, Kang-Hee;Son, Seon Ah;Shim, Sun-Yup
    • 한국미생물·생명공학회지
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    • 제50권1호
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    • pp.22-30
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    • 2022
  • Haliotis discus hannai called abalone, is the valuable marine mollusks and the by-products of abalone processing are viscera. Brownish abalone male viscera (AMV), which have not been reported as having anti-inflammatory effects, was extracted with acetone and fractionated by different six acetone/hexane ratios (0, 10, 20, 30, 40, and 100%) using a silica column via in vitro ABTS and DPPH radical and nitric oxide (NO) production assay-guided fractionation. Among the fractions, the acetone/hexane ratio 40%, A40 exhibited the most potent radical scavenging activities and inhibition of lipopolysaccharide (LPS)-induced NO production without cytotoxicity. A40 inhibited LPS-induced intracellular reactive oxygen species (ROS) production in a dose-dependent manner. Western blot analysis revealed that A40 down-regulated the activation of NF-κB, MAPK (ERK 1/2, p-38, and JNK), and inflammatory enzymes, inducible nitric oxide synthase (iNOS) and cyclooxygenase (COX)-2. Moreover, this fraction inhibited the generation of pro-inflammatory cytokines such as interleukin (IL)-1β, IL-6, and tumor necrosis factor (TNF)-α. These results suggested that AMV containing A40 with anti-inflammatory and anti-oxidantive effects, is the effective therapeutic and functional material for treating inflammatory disorders.

아토피 피부염을 유발한 마우스에서 백선피지부자복합방의 항염증 효과 (Anti-inflammatory effect of Baecksunpijibujabokhap-bang in Atopic dermatitis model mice)

  • 심부용;김성환;김동희
    • 대한본초학회지
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    • 제29권3호
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    • pp.51-58
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    • 2014
  • Objectives : In order to investigate the efficacy of BJBB on atopic dermatitis, various anti-inflammatory factors were studied. Methods : In-vitro, inflammatory mediators, such as MTT and nitric oxide were detected after the addition of LPS with or without BJBB in Raw 264.7 cells. In-vivo, in order to verify the effectiveness of BJBB in atopic dermatitis animal model, its role in inflammation factors and histological changes were observed in NC/Nga mice. Results : BJBB showed cell viability of 100% or higher in all concentration in Raw 264.7 cells. BJBB inhibited LPS-induced productions of inflammatory mediators nitric oxide in RAW 264.7cells. BJBB treated group showed significant decrease in the expression of IL-1b, IL-6 and TNF-a by 40%, 80% and 44% respectively. Also the group showed decrease in the transcription of IL-1b, IL-6 and TNF-a mRNA in spleen by 41%, 93% and 39% respectively. BJBB treated group showed significant decrease in WBC, neutrophil, lympocyte and monocytes immune cell ratio in blood by 54%, 63%, 57% and 86% respectively. BJBB treated group showed decrease in the expression of IgG by 39% respectively. Also, infiltration of adipocytes into skin was suppressed and the thickness of epidermis and dermis were relatively decreased in the BJBB treated group. Conclusion : BJBB has an anti-inflammatory effects in NC/Nga mouse. Thus, these results suggested a beneficial effect of BJBB in treatment with Atopic dermatitis and inflammatory.

형개련교탕(荊芥連翹湯) 가감방(加減方)의 항균 및 항염증 효능 (Investigation of Antimicrobial and Anti-inflammatory Activities of the Hyeonggaeyeongyotang Gagambang)

  • 강성구;조남준;김지영;한효상;김기광
    • 대한본초학회지
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    • 제33권4호
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    • pp.35-41
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    • 2018
  • Objectives : Hyeonggaeyeongyotang Gagambang (HYT) is a herbal medicine prescribed for the treatment of inflammatory diseases, but it is necessary to study the exact therapeutic efficacy. This study aims to investigate the antibacterial and anti-inflmmatory activities of HYT. Methods : Antibacterial activity of HYT was confirmed by staining Escherichia coli, a gram negative strain, and Staphylococcus aureus, a gram positive strain, on solid Lysogeny Broth (LB) medium containing HYT. Antioxidant activity of HYT was confirmed by 2,2'-azino-bis-3-ethylbenzothiazoline-6-sulphonic acid (ABTS) assay. The phosphorylation of nuclear factor of kappa light polypeptide gene enhancer in B-cells inhibitor, alpha ($I{\kappa}B{\alpha}$) after lipopolysaccharide (LPS) treatment with HYT-treated RAW 264.7 mouse macrophages cells was confirmed by immunoblot analysis and the level of interleukin 1 beta (IL-$1{\beta}$) mRNA expression level was confirmed by quantitative real-time PCR. Results : HYT showed a concentration-dependent antibacterial activity against Escherichia coli and Staphylococcus aureus and also showed excellent antioxidant activity. HYT treatment attenuated the phosphorylation of $I{\kappa}B{\alpha}$induced by LPS treatment in RAW 264.7 mouse macrophages cells. The phosphorylation of $I{\kappa}B{\alpha}$is crucial for the regulation of the expression of various pro-inflammatory cytokines. In addition, IL-$1{\beta}$ mRNA expression level of RAW 264.7 mouse macrophages cells stimulated by LPS treatment was also inhibited by HYT treatment. Conclusions : Through experimental demonstration of the antioxidative, antimicrobial and anti-inflammatory effects of HYT, we demonstrated that HYT is a herbal medicine effective for the treatment of inflammatory diseases caused by various bacterial infections.

건선 모사 피부 염증모델에서 대황목단피탕(大黃牧丹皮湯)의 효능 연구 (Effect of Daehwangmokdanpitang on psoriasis-like skin inflammation)

  • 노경란;권빛나;김동욱;오진영;양갑식;조일주
    • 대한융합한의학회지
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    • 제6권1호
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    • pp.29-36
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    • 2024
  • Objectives: Psoriasis is a common chronic inflammatory skin disease characterized by keratinocyte hyperproliferation and an excessive inflammatory response. Agents that can attenuate keratinocyte hyperproliferation and excessive inflammatory responses are considered potentially useful for the treatment of psoriasis. Daehwangmokdanpitang (DHMDPT) exhibits a broad range of bioactivities, including anti-proliferative and anti-inflammatory effects. This study aims to evaluate the anti-psoriatic potential of DHMDPT in vitro. Methods: HaCaT keratinocytes were stimulated with a mixture of IL-17A, IL-22, oncostatin M, IL-1α, and TNF-α (M5) to establish an in vitro psoriatic keratinocyte model. Cell viability was measured using the MTT assay. Quantitative real-time PCR (qRT-PCR) was performed to measure the mRNA levels of the hyperproliferative marker gene keratin 6 (KRT6) and inflammatory factors such as IL-6, TNF-α, and IL-23A. Additionally, chemokines including CCL5, CCL2, CCL20, and CXCL1 were measured by qRT-PCR. Results: DHMDPT attenuated M5-induced hyperproliferation, as indicated by a reduction in KRT6 expression in HaCaT keratinocytes. M5 stimulation significantly upregulated the mRNA levels of IL-6, TNF-α, and IL-23A. However, DHMDPT treatment attenuated the upregulation of IL-6 but not TNF-α or IL-23A. Additionally, DHMDPT inhibited the expression of CCL5, CCL2, and CXCL1, but not CCL20. Conclusion: DHMDPT effectively attenuated the M5-induced proliferation and inflammatory response in HaCaT keratinocytes. Therefore, DHMDPT could be an attractive candidate for future development as an anti-psoriatic agent.

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도라지 잎 에탄올 추출물의 주요 성분 분석 및 마우스 대식세포와 인체 폐암세포에서 항염효과 (Analysis of Major Constituents of an Ethanol Extract of Platycodon Grandiflorum Leaves and Protective Effects on Inflammation in Murine Macrophage and Human Lung Carcinoma Cells)

  • 이정민;배병준;최지림;정영신
    • 한국식품영양학회지
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    • 제37권2호
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    • pp.110-122
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    • 2024
  • This study investigated major constituents and anti-inflammatory effects of an ethanol extract of Platycodon grandiflorum leaves. Through HPLC analysis, chlorogenic acid and luteolin-7-O-glucoside were identified as predominant constituents in the ethanol extract. Their anti-inflammatory effects were evaluated using murine macrophage (RAW 264.7 cells) and human lung carcinoma cells (NCI-H292 & A549). The ethanol extract significantly (p<0.01) inhibited the production of nitrite, interleukin-6 (IL-6), and prostaglandin E2 (PGE2) induced by lipopolysaccharide (LPS) in RAW 264.7 cells. Furthermore, the ethanol extract suppressed the expression of cyclooxygenase-2 (COX-2) and inducible NO synthase (iNOS) proteins in RAW 264.7 cells stimulated with LPS. In NCI-H292 and A549 cells, treatment with the ethanol extract significantly (p<0.05) decreased levels of pro-inflammatory cytokines IL-6 and IL-8 induced by IL-1β. The phosphorylation of ERK rather than JNK in the mitogen-activated protein kinase signaling pathway was observed to be a more important mediator in the down-regulation of pro-inflammatory cytokines in NCI-H292 cells. These findings suggest that the ethanol extract of Platycodon grandiflorum leaves containing luteolin-7-O-glucoside exhibits promising anti-inflammatory properties.

Analgesic and anti-inflammatory effects of galangin: a potential pathway to inhibit transient receptor potential vanilloid 1 receptor activation

  • Kaiwen Lin;Datian Fu;Zhongtao Wang;Xueer Zhang;Canyang Zhu
    • The Korean Journal of Pain
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    • 제37권2호
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    • pp.151-163
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    • 2024
  • Background: Galangin, commonly employed in traditional Chinese medicine for its diverse medicinal properties, exhibits potential in treating inflammatory pain. Nevertheless, its mechanism of action remains unclear. Methods: Mice were randomly divided into 4 groups for 7 days: a normal control group, a galangin-treated (25 and 50 mg/kg), and a positive control celecoxib (20 mg/kg). Analgesic and anti-inflammatory effects were evaluated using a hot plate test, acetic acid-induced writhing test, acetic acid-induced vascular permeability test, formalin-induced paw licking test, and carrageenan-induced paw swelling test. The interplay between galangin, transient receptor potential vanilloid 1 (TRPV1), NF-κB, COX-2, and TNF-α proteins was evaluated via molecular docking. COX-2, PGE2, IL-1β, IL-6, and TNF-α levels in serum were measured using ELISA after capsaicin administration (200 nmol/L). TRPV1 expression in the dorsal root ganglion was analyzed by Western blot. The quantities of substance P (SP) and calcitonin gene-related peptide (CGRP) were assessed using qPCR. Results: Galangin reduced hot plate-induced licking latency, acetic acid-induced contortions, carrageenan-triggered foot inflammation, and capillary permeability in mice. It exhibited favorable affinity towards TRPV1, NF-κB, COX-2, and TNF-α, resulting in decreased levels of COX-2, PGE2, IL-1β, IL-6, and TNF-α in serum following capsaicin stimulation. Galangin effectively suppressed the upregulation of TRPV1 protein and associated receptor neuropeptides CGRP and SP mRNA, while concurrently inhibiting the expression of NF-κB, TNF-α, COX-2, and PGE2 mRNA. Conclusions: Galangin exerts its anti-inflammatory pain effects by inhibiting TRPV1 activation and regulating COX-2, NF-κB/TNF-α expression, providing evidence for the use of galangin in the management of inflammatory pain.

LPS로 유도된 미세아교세포에서 작약감초탕의 항염증 효과 (Anti-inflammatory activity of jakyakgamcho-tang on Lipopolysaccharide-Stimulated BV-2 Microglia Cells)

  • 문연자
    • 대한본초학회지
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    • 제37권5호
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    • pp.83-88
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    • 2022
  • Objectives : Jakyakgamcho-tang (JGT) has been traditionally used to treat muscular convulsion and pain in South Korea. According to recent studies, JGT has been reported to have anti-depression, anti-inflammation, anti-oxidative, anti-diabetics, anti-spasm and analgesic effects, but studies on its anti-neuroinflammatory and neuroprotective effect have not been deeply conducted. Thus, we investigated the anti-neuroinflammatory activity of JGT on lipopolysaccharide (LPS)-stimulated mouse microglia cells. Methods : To investigate the anti-neuroinflammatory effects of JGT on BV2 microglial cells, we examined the production of nitric oxide (NO) using griess assay, and mRNA expressions of pro-inflammatory cytokines such as interleukin (IL)-1𝛽, IL-6, and tumor necrosis factor (TNF)-𝛼 using real time RT-PCR. Furthermore, to determine the regulating mechanisms of JGT, we investigated the heme oxygenase (HO)-1 by real time RT-PCR. Results : Pre-treatment of JGT effectively decreased NO production in LPS-stimulated BV2 cells at concentrations without cytotoxicity. Additionally, JGT significantly suppressed the production of IL-1𝛽, IL-6, and TNF-𝛼 in LPS-stimulated BV2 cells. Furthermore, JGT activated the HO-1 expression, which is one of the immunomodulatory signaling molecules. And the abolishment of HO-1 by tin protoporphyrin IX (SnPP, the HO-1 inhibitor) reversed the anti- inflammatory activity of JGT in LPS-stimulated BV2 cells. Conclusions : Our results suggest that the JGT has anti-neuroinflammatory effect through the activation of HO-1 in LPS-stimulated BV2 cells. Thereby, JGT could expected to be used for the prevention and treatment of neurodegenerative disease related to neuroinflammation.

쥐 대식세포에 대한 고추나무(Staphylea bumalda) 잎의 항염증 효과 검증 (Anti-inflammatory Effects of Staphylea bumalda Leaves Extracts in Murine Macrophages)

  • 김정화;이재권
    • 약학회지
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    • 제59권6호
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    • pp.251-258
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    • 2015
  • Aim of the present study was to investigate whether methanol extract from the leaves of Staphylea bumalda could be used to suppress lipopolysaccharide (LPS)-induced inflammatory responses in murine macrophage cell lines, Raw 264.7 cells. The extract reduced nitric oxide (NO), cyclooxigenase-2 (COX-2) and pro-inflammatory cytokines production from LPS-stimulated Raw 264.7 cells. These inhibitory effects were associated with decreases in the phosphorylation of MAP kinases and the activity of $NF{\kappa}B$ signal pathways. Our results indicate that Staphylea bumalda significantly inhibits the inflammatory activity of activated macrophages, suggesting that Staphylea bumalda could be a potential candidate for the treatment of inflammatory disease.

Anti-inflammatory Modulating Effect of Rengyolone in Rat

  • Lee, Gil-Hyon;Hyun, Kyung-Yae;Kang, Yoon-Jung
    • 대한의생명과학회지
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    • 제25권1호
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    • pp.54-59
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    • 2019
  • Hepatitis refers to inflammation of hepatocytes and liver tissue, and is mainly caused by viruses, alcohol, and drugs. Forsythiae Fructus has traditionally been used as a diuretic, anti-inflammatory and antipyretic. Research on rengyolone, a bioactive substance extracted from Forsythiae Fructus, is rarely found in Korea and abroad. First, an acute animal toxicity test for rengyolone was conducted for the animal experiment. 4 week-old SD rats were injected intraperitoneally with acetaminophen for 2 weeks to induce chronic liver inflammation. Rengyolone was orally administered into two groups during 4 weeks: pre-inflammatory group and post-inflammatory group. Oral doses were also divided into 1 mg/kg and 5 mg/kg. Liver function tests (ALT, AST, ALP), western blot analysis of liver tissue, and level of inflammatory cytokine were performed to evaluate the improvement of hepatitis. Experimental results showed that rengyolone inhibited the development of acute inflammation and thus could reduce hepatitis symptoms.

Anti-inflammatory properties of broccoli sprout extract in a lipopolysaccharide-induced testicular dysfunction

  • Hyun-Jung Park
    • 한국동물생명공학회지
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    • 제38권1호
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    • pp.17-25
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    • 2023
  • Brassica oleracea var. italica (broccoli) is a type of cabbage that contains vitamins, minerals, and phytochemicals. Consequently, it is used as a potential nutraceutical source for improving human health by reducing oxidative stress and inflammatory responses. Here, the effects of broccoli sprout extract (BSE) on the inflammatory response were investigated through lipopolysaccharide (LPS)-induced inflammatory mouse models. First, we found that the BSE obviously reduce NO production in RAW 264.7 cells in response to LPS stimulation in in vitro study. Pretreatment with BSE administration improved sperm motility and testicular cell survivability in LPS-induced endotoxemic mice. Additionally, BSE treatment decreased the levels of the pro-inflammatory cytokines TNF-a, IL-1β, and IL-6, and COX-2 in testis of LPS-induced endotoxemic mice models. In conclusion, BSE could be a potential nutraceutical for preventing the excessive immune related infertility.