• Title/Summary/Keyword: Anti-inflammatory studies

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Current concept for anti-inflammatory mechanism of acupuncture;based on the latest studies (침의 염증 제어 기전에 관한 최근 견해;최신 연구를 바탕으로)

  • Jo, Jong-Hyun;Ahn, Seong-Hun;Sohn, In-Chul
    • Korean Journal of Acupuncture
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    • v.25 no.2
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    • pp.43-55
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    • 2008
  • Objectives : The acupuncture has been in the classic arsenal of Oriental medicine over inflammatory diseases. Its physiological mechanism is not fully understood but being known better everyday. We reviewed several papers to describe current concepts over anti-inflammatory mechanism of acupuncture. Methods : Some computerized literature searches were done using the key words of 'acupuncture' AND 'Anti-inflammatory' in Medline via Pubmed between March 2007 and December 2007. Only rationally-designed studies were picked among practically associated materials. A well-known hypothesis on acupunctural physiology was adapted for integration. Result : 18 studies were selected. 17 studies were laboratory experiment and 1 was a clinical study. Data was classified into some comprehensive categories. Author's opinion was added at the end of each category. Study results supported the hypotheses on acupunctural physiology; Acupuncture has some influences on autonomic nerve system(ANS). And it stimulates several receptors from target cells like macrophage, and finally inhbits cytokines like TNF-${\alpha}$, IL-1${\beta}$ andIL-10 which are inflammation-mediated. Acupuncture increases the opioid releasing therefore relieves inflammation. And acupuncture inhibits cyclooxgenase(COX) but its mechanism is controversial until now. Conclusion : Current concepts over anti-inflammatory mechanism of acupuncture are as follows. Acupucture suppresses inflammation by stimulation of ANS, increasing of opioid releasing and inhibition of COX. But more studies are needed to fully describe the anti-inflammatory effect of acupuncture.

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Anti-inflammatory Activity of 3,6,3'-Trihydroxyflavone in Mouse Macrophages, In vitro

  • Lee, Eunjung;Jeong, Ki-Woong;Shin, Areum;Kim, Yangmee
    • Bulletin of the Korean Chemical Society
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    • v.35 no.11
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    • pp.3169-3174
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    • 2014
  • Numerous studies have examined the role of flavonoids in modulating inflammatory responses in vitro. In this study, we found a novel flavonoid, 3,6,3'-trihydroxyflavone (1), with anti-inflammatory effects. Anti-inflammatory activity and mechanism of action were examined in mouse macrophages stimulated with lipopolysaccharide (LPS). Our results showed that the anti-inflammatory effects of 1 are mediated via p38 mitogen-activated protein kinase (p38 MAPK), Jun-N terminal kinase (JNK), and the extracellular-signal-regulated kinase (ERK) pathway in lipopolysaccharide (LPS)-stimulated RAW264.7 cells. Binding studies revealed that 1 had a high binding affinity to JNK1 ($1.568{\times}10^8M^{-1}$) and that the 3- and 6-hydroxyl groups of the C-ring and A-ring of 1 participated in hydrogen bonding interactions with the side chains of Asn114 and Lys55, respectively. The oxygen at the 3' position of the B-ring formed a hydrogen bond with side chain of Met111. Therefore, 1 could be a potential inhibitor of JNKs, with potent anti-inflammatory activity.

Biological effects of zinc oxide nanoparticles on inflammation

  • Kim, Min-Ho
    • CELLMED
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    • v.6 no.4
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    • pp.23.1-23.6
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    • 2016
  • With the rapid developments in nanotechnology, an increasing number of nanomaterials have been applied in various aspects of our lives. Recently, pharmaceutical nanotechnology with numerous advantages has growingly attracted the attention of many researchers. Zinc oxide nanoparticles (ZnO-NPs) are nanomaterials that are widely used in many fields including diagnostics, therapeutics, drug-delivery systems, electronics, cosmetics, sunscreens, coatings, ceramic products, paints, and food additives, due to their magnetic, catalytic, semiconducting, anti-cancer, anti-bacterial, anti-inflammatory, ultraviolet-protective, and binding properties. The present review focused on the recent research works concerning role of ZnO-NP on inflammation. Several studies have reported that ZnO-NP induces inflammatory reaction through the generation of reactive oxygen species by oxidative stress and production of inflammatory cytokines by activation of nuclear factor-${\kappa}B$ ($NF-{\kappa}B$). Meanwhile, other researchers reported that ZnO-NP exhibits an anti-inflammatory effect by inhibiting the up-regulation of inflammatory cytokines and the activation of $NF-{\kappa}B$, caspase-1, $I{\kappa}B$ $kinase{\beta}$, receptor interacting protein2, and extracellular signal-regulated kinase. Previous studies reported that size and shape of nanoparticles, surfactants used for nanoparticles protection, medium, and experimental conditions can also affect cellular signal pathway. This review indicated that the anti-inflammatory effectiveness of ZnO-NP was determined by the nanoparticle size as well as various experimental conditions. Therefore, the author suggests that pharmaceutical therapy with the ZnO-NP is one of the possible strategies to overcome the inflammatory reactions. However, further studies should be performed to maximize the anti-inflammatory effect of ZnO-NP to apply as a potential agent in biomedical applications.

Regulatory roles of ginseng on inflammatory caspases, executioners of inflammasome activation

  • Yun, Miyong;Yi, Young-Su
    • Journal of Ginseng Research
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    • v.44 no.3
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    • pp.373-385
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    • 2020
  • Inflammation is an immune response that protects against pathogens and cellular stress. The hallmark of inflammatory responses is inflammasome activation in response to various stimuli. This subsequently activates downstream effectors, that is, inflammatory caspases such as caspase-1, 4, 5, 11, and 12. Extensive efforts have been made on developing effective and safe anti-inflammatory therapeutics, and ginseng has long been traditionally used as efficacious and safe herbal medicine in treating various inflammatory and inflammation-mediated diseases. Many studies have successfully shown that ginseng plays an anti-inflammatory role by inhibiting inflammasomes and inflammasome-activated inflammatory caspases. This review discusses the regulatory roles of ginseng on inflammatory caspases in inflammatory responses and also suggests new research areas on the anti-inflammatory function of ginseng, which provides a novel insight into the development of ginseng as an effective and safe anti-inflammatory herbal medicine.

Studies on the Anti-inflammatory Activity of Ginseng Total Saponin, Protopanaxadiol and Protopanaxatriol (인삼 Total Saponin, Protopanaxadiol 및 Protopanaxatriol의 소염작용에 관한 연구)

  • 조태순;이선미;정국현;이범구;이석용;박종대
    • Biomolecules & Therapeutics
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    • v.7 no.2
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    • pp.145-152
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    • 1999
  • In an attempt to elucidate the anti-inflammatory action of ginseng total saponin, protopanaxadiol and protopanaxatriol, the anti-inflammatory activity of three compounds was investigated under various acute and chronic inflammatory models. The blood vessel permeability was slightly inhibited by total saponin and protopanaxatriol treatments. Granuloma formation induced by 2% carrageenan was inhibited by total saponin and protopanaxatriol. The cotton-pellet granuloma formation was significantly inhibited by intraperitoneal injection of total saponin. Total saponin and protopanaxadiol inhibited leukocyte emigration and protein exudation in CMC-induced pouch but protopanaxauiol increased leukocyte emigration. The swelling of rat hind paw induced by 1% carrageenan was significantly inhibited by total saponin, protopanaxadiol and protopanaxatriol both single and 2 weeks treatments. Total saponin, protopanaxadiol and protopanaxatriol decreased the anti-inflammatory activity in adrenalectomized rat. Our results suggest that total saponin, protopanaxadiol and protopanaxatriol have potent anti-inflammatory activity, this may be mediated in part through stimulation of adrenal glands.

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Studies on Anti-inflammatory effect of Clerodendron trichotomum Thunberg Leaves

  • Choi, Jung-Ho;Whang, Wan-Kyun;Kim, Hong-Jin
    • Proceedings of the PSK Conference
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    • 2002.10a
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    • pp.261.1-261.1
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    • 2002
  • The leaves of Clerodendron trichotomum Thunberg(CTL) is used in Chinese folk medicine for anti-inflammatory properties. We studied on the anti-inflammatory effects of CTL extracts in rat. mouse and Raw 264.7cell. 1 mg/kg of 30%. 60% methanol fraction of CTL and 1 mg/kg of indomethacin as the standard anti-inflammatory drug were administrated into rats, respectively. Carrageenan was injected subcutaneously to induce hind paw edema in rats. (omitted)

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Anti-inflammatory, Anti-oxidative and Anti-bacterial Activities of the Constituents Extracted from Leaves of Talipariti hamabo

  • Xu Hui Liang;Jung Eun Kim;Nam Ho Lee
    • Journal of the Korean Chemical Society
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    • v.67 no.2
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    • pp.145-149
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    • 2023
  • Talipariti hamabo is a plant growing around salt marshes in the Lava Coast region of Jeju Island, Korea. In this study, the extract of T. hamabo leaves was investigated for the anti-inflammatory, anti-oxidative and anti-bacterial activities and their active constituents were identified. In the anti-inflammatory tests using lipopolysaccharide-stimulated RAW264.7 cells, the ethyl acetate (EtOAc) fraction inhibited the nitric oxide production without causing cell toxicity. Moreover, the EtOAc fraction reduced pro-inflammatory cytokines (tumor necrosis factor-α, interleukin-6) as well as prostaglandin E2. In the anti-oxidative studies with DPPH and ABTS+ radicals, potent scavenging activities were observed in the EtOAc and n-butanol fractions. Upon the anti-bacterial tests using Staphylococcus epidermidis, EtOAc and n-butanol fractions exhibited good activities. Through the phytochemical studies on EtOAc fraction, three components were isolated by repeated column chromatography; oleic acid (1), p-hydroxyphenethyl-trans-ferulate (2), nicotiflorine (3). Based on these results, the extract of T. hamabo leaves can be developed as natural resources for cosmetic applications.

Clinical comparison studies on 30 cases of Bell's palsy patient with postauricular pain by Anti-inflammatory pharmacopuncture & Acupuncture and Herbal therapy (소염약침이 이후통을 동반한 구안와사 환자에 미치는 영향)

  • Choi, Byoung-Chol;Ahn, Taek-Won;Han, Kyung-Su
    • Journal of Haehwa Medicine
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    • v.18 no.2
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    • pp.89-94
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    • 2009
  • Objective : This study was designed to evaluate the effect of treatment of Bell's palsy patients with postauricural pain by Anti-inflammatory pharmacopuncture Methods : The clinical comparison studies were carried out 30 cases of Bell's palsy patient with postauricular pain. Anti-inflammatory pharmacopuncture. We divided into two groups. One was control group that was treated only Acupuncture and Herbal therapy and The other was a Anti-inflammatory pharmacopuncture group and the conclusions for treatment are as follows. Results : 1. Regarding alleviation of pain by VAS, Anti-inflammatory pharmacopuncture Group II showed significant decrease of VAS in the 5days treatment. 2. They were not significant score within two groups after 5th days treatment. 3. As a result of evaluation by using Yanagihara score, they were not significant score within two groups after final treament.

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Isomer specificity of conjugated linoleic acid (CLA): 9E,11E-CLA

  • Lee, Yun-Kyoung
    • Nutrition Research and Practice
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    • v.2 no.4
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    • pp.326-330
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    • 2008
  • Conjugated linoleic acids (CLA) were identified in 1980's, since then it has been intensively studied due to its various beneficial health effects such as anti-inflammatory, anti-atherogenic, anti-carcinogenic and anti-diabetic/obesity effects. Isomer specificity of a number of CLA isomers, especially predominant isomer 9Z,11E- and 10E,12Z-CLA, is now recognized. However, the less prevalent CLA isomers have not been well characterized. Recently, studies have reported the distinctively different effects of 9E, 11E-CLA in colon cancer cells, endothelial cells, and macrophage cells compared to the rest of CLA isomers. In this review, various effects of CLAs, especially anti-inflammatory and anti-atherogenic effects, will be discussed with focusing on the isomer-specific effects and potential mechanism of action of CLA. At last, recent studies about 9E,11E-CLA in in vitro and animal models will be discussed.

TLR10 and Its Unique Anti-Inflammatory Properties and Potential Use as a Target in Therapeutics

  • Faith Fore;Cut Indriputri;Janet Mamutse;Jusak Nugraha
    • IMMUNE NETWORK
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    • v.20 no.3
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    • pp.21.1-21.10
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    • 2020
  • TLRs are pattern recognition receptors (PRRs) whose cytoplasmic signalling domain is similar to that of IL-1. The extracellular domain of TLRs serve as the binding site of pathogen associated molecular patterns. TLRs are found on both plasma and endosomal membranes and they mainly exert their function by activating genes which lead to production of inflammatory factors. The latest TLR to be discovered, TLR10 is a unique TLR which exhibit anti-inflammatory properties. TLR10 is found on the plasma membrane with other TLRs namely TLR1, TLR2, TLR4, TLR5 and TLR6. Studies have revealed that TLR10 is found on the same gene cluster with TLR1 and TLR6 and is also a coreceptor of TLR2. Up to date, TLR10 is the only TLR which exhibit anti-inflammatory property. Previously, TLR10 was thought to be an "orphan receptor" but much recent studies have identified ligands for TLR10. Currently there is no review article on TLR10 that has been published. In this narrative review, we are going to give an account of TLR10, its functions mainly as an anti-inflammatory PRR and its possible applications as a target in therapeutics.