• Title/Summary/Keyword: inflammation

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Analysis of chemical mediators and cytokines in allergic inflammation models in rats and their advantages for the screening of anti-allergic inflammatory drugs

  • Ohuchi, Kazuo
    • Proceedings of the Korean Society of Applied Pharmacology
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    • 1996.04a
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    • pp.11-18
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    • 1996
  • We have established an air pouch-type allergic inflammation model in rats [1,2] and a peritoneal eosinophilia model in rats [3]. Employing the two models, chemical mediators and cytokines responsible for the development of inflammation induced by at allergic mechanisms are investigated to clarify the usefulness of the two models for the screening of anti-allergic inflammatory drugs.

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Lumbar foraminal neuropathy: an update on non-surgical management

  • Choi, Young Kook
    • The Korean Journal of Pain
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    • v.32 no.3
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    • pp.147-159
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    • 2019
  • Lumbar foraminal pathology causing entrapment of neurovascular contents and radicular symptoms are commonly associated with foraminal stenosis. Foraminal neuropathy can also be derived from inflammation of the neighboring lateral recess or extraforaminal spaces. Conservative and interventional therapies have been used for the treatment of foraminal inflammation, fibrotic adhesion, and pain. This update reviews the anatomy, pathophysiology, clinical presentation, diagnosis, and current treatment options of foraminal neuropathy.

Effects of Picrorrhiza Rhizoma on Acute Inflammation in Mice

  • Lee, Hyeung-Sik;Ku, Sae-Kwang
    • Biomolecules & Therapeutics
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    • v.16 no.2
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    • pp.137-140
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    • 2008
  • The effects of Picrorrhiza Rhizoma (PR) aqueous extracts were observed on xylene-induced acute inflammation. The xylene was topically applied 60 min after administration of 500, 250 and 125 mg/kg of PR extracts, and all animals were sacrificed 2 hrs after xylene application. The changes on ear weights, histolopathological analyses of ear were evaluated as compared with indomethacin and dexamethasone 15 mg/kg treated groups - well known anti-inflammatory agents. Xylene application resulted in marked increases in induced ear weights as compared with intact control ear. Severe vasodilation, edematous changes of ear skin and increase in the thickness of the ear tissues as acute inflammation were detected in xylene-treated control ears at histopathological observation. However, these xylene-induced acute inflammatory changes were dosedependently decreased by oral treatment of PR extracts. Therefore, it is concluded that PR extracts has favorable anti-inflammatory effects on xylene-applicated acute ear inflamed mice.

The Inhibitory Effect of Bamboo Culm Extract on the Development of Pulmonary Inflammation in Pristane-Induced Lupus Mice

  • Chae, Byeong-Suk;Kim, Dae-Keun;Eun, Jae-Soon;Kwon, Gi-Sung;Shin, Tae-Yong
    • Natural Product Sciences
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    • v.16 no.4
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    • pp.245-250
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    • 2010
  • Pulmonary pathogenesis in lupus is characterized by interstitial inflammation and vasculitis in lungs. We investigated whether bamboo culm extract (BC) attenuates pulmonary inflammation and lung injury in pristane-induced lupus mice. The pristane-induced lupus mice and healthy mice were administrated with BC 0.5 ml/kg or PBS orally once a day for 14 days. Our results demonstrated that BC significantly attenuated levels of bronchoalveolar lavage (BAL) IL-6, IL-10, IFN-$\gamma$, $PGE_2$ and VEGF, and pulmonary vascular permeability in pristane-induced lupus mice. Therefore, these findings suggest that BC may inhibit development of pulmonary inflammation and lung injury in lupus.

Inhibitory Effect of Ore Minerals on the Allergic Inflammation in Mouse

  • Park, Seul-Ki;Lee, Chang-Won;Lee, Mi-Young
    • Applied Biological Chemistry
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    • v.51 no.4
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    • pp.269-275
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    • 2008
  • The ore minerals, mainly composed of sericite, talc, and halloysite, were investigated for their inhibitory effect on the allergic inflammation in mice by measuring the serum IgE level, inflammatory cytokine production, and histamine and ${\beta}$-hexosaminidase releases. When the mice were ovalbumin (OVA)-challenged prior to the ore mineral treatment, the IgE level in the serum decreased significantly. The ore minerals significantly reduced the productions of IL-4 and the tumor necrosis factor-${\alpha}$ in the bronchial alveolar lavage fluid challenged with OVA. The inflammatory infiltrates, found in the lung of the OVA-challenged mouse, were also notably decreased following the ore mineral treatment. The ore minerals significantly reduced the release of histamine and ${\beta}$-hexosaminidase from the RBL-2H3 cells. These results suggest that the ore minerals may be useful as potent inhibitors of the allergic inflammation in mice.

Actions of Korean Ginseng and Benzoyl Peroxide on Inflammation Relevant to Acne (여드름과 관련된 염증에 대한 고려인삼과 벤조일퍼옥시드의 영향)

  • Kim, Hye-Young;Jin, Sung-Ha;Kim, Shin-Il
    • Journal of Ginseng Research
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    • v.14 no.3
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    • pp.391-398
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    • 1990
  • The intradermal injection of Propionibacterium acnes (ATCC 6919) into the ears of female Sprague-Dawley rats produced a chronic inflammation with the formation of acneiform lesions. Inflammation was characterized by more than four times of ear thickness and 2.8 times of ear weight at day 21. Histologically, massive infiltration of neutrophils, macrophage and lymphocytes, hyperplastic epidermis, comedones containing keratin mass and inflammatory materials were observed. Both ginseng saponin and extract from Korean red ginseng significantly redliced the ear thickness and their effects were similar to that of benzoyl peroxide. Ginseng samples and beneoyl peroxide modified lipid constituents of P. acnesinjected rat ear tissues. Even though no marked histological changes in inflammatory lesions were observed in ginseng-treated ear tissues, Korean red ginseng showed a possibility of reduce in the risk of acne development.

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Role of IL-23 and Th17 Cells in Airway Inflammation in Asthma

  • Nakajima, Hiroshi;Hirose, Koichi
    • IMMUNE NETWORK
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    • v.10 no.1
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    • pp.1-4
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    • 2010
  • Asthma is characterized by chronic airway inflammation with intense eosinophil and lymphocyte infiltration, mucus hyperproduction, and airway hyperresponsiveness. Accumulating evidence indicates that antigen-specific Th2 cells and their cytokines such as IL-4, IL-5, and IL-13 orchestrate these pathognomonic features of asthma. In addition, we and others have recently shown that IL-17-producing $CD4^+$ T cells (Th17 cells) and IL-23, an IL-12-related cytokine that is essential for survival and functional maturation of Th17 cells, are involved in antigen-induced airway inflammation. In this review, our current understanding of the roles of IL-23 and Th17 cells in the pathogenesis of allergic airway inflammation will be summarized.

Suppressive Effects of Benincasae hispida on Allergic Inflammation

  • Park, Seul-Ki;Kim, Jum-Ji;Sung, Sang-Min;Lee, Mi-Young
    • Molecular & Cellular Toxicology
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    • v.5 no.4
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    • pp.304-309
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    • 2009
  • The effects of an extract of Benincasae hispida on allergic inflammation were examined in terms of histamine and $\beta$-hexosaminidase release, serum IgE level and inflammatory cytokine level. The B. hispida extract inhibited the release of histamine and $\beta$-hexosaminidase, a degranulation marker, from rat basophilic leukemia cells (RBL-2H3). When mice were first ovalbumin-challenged and then treated with B. hispida extract, there was a significant decrease in the IgE level in the mouse serum. The extract treatment reduced the serum IgE level prominently, compared with the ovalbumin-challenged mice. The extract also significantly reduced the TNF-$\alpha$ and IL-4 levels in the BAL fluid when challenged with antigen. Taken together, the Benincasae hispida extract may be efficacious against allergic inflammation.

Changes in Some Metabolites and Ovarian Response to Super-ovulation Treatment after the Induction of Inflammation in Sheep (면양에 있어서 염증유발후의 혈중대사물의 동태 그리고 그후의 과잉배란처치에 대한 난소반응)

  • Kweon Oh-Kyeong
    • Journal of Veterinary Clinics
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    • v.5 no.1
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    • pp.31-35
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    • 1988
  • The effects of inflammation on the changes in some blood metabolites and ovarian response to super-ovulation treatment in sheep were investigated. Inflammation was induced artificially with LPS(Lipopoly-saccharide E. coli; 0.2mg/kg). Changes in the levels of NEFA, GOT, ${\gamma}$-GTP and body temperature after LPS injection were observed. Superovulation was carried out about 2 months after LPS injection. The body temperature, the levels of NEFA and GOT increased, and the level of total cholesterol decreased transiently. However, the level of ${\gamma}$-GTP did not change significantly. Superovulation results were not different between LPS injection and control groups. It was indicated that superovulation results did not decrease in the sheep which showed regular estrous cycle even after the induction of inflammation.

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Chorioamnionitis: Is a major player in the development of bronchopulmonary dysplasia?

  • Choi, Chang Won
    • Clinical and Experimental Pediatrics
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    • v.60 no.7
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    • pp.203-207
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    • 2017
  • Chorioamnionitis is an inflammation in the fetal membranes or placenta. When chorioamnionitis develops, fetal lungs are exposed to inflammatory cytokines and mediators via amniotic fluid. Because inflammation plays a pivotal role in the development of bronchopulmonary dysplasia (BPD), a chronic lung disease of prematurity, fetal lung inflammation induced by chorioamnionitis has been considered to be one of the major pathogenetic factors for BPD. Although there have been a number of studies that demonstrated the relationship between chorioamnionitis and BPD, there are still controversies on this issue. The controversies on the relationship between chorioamnionitis and BPD arise from not-unified definitions of chorioamnionitis and BPD, different study populations, and the proportion of contribution between inflammation and infectious microorganisms. The publication bias also contributes to the controversies. Clinical trials targeting chorioamnionitis or microorganisms that cause chorioamnionitis will answer on the actual relationship between chorioamnionitis and BPD and provide a novel prophylactic strategy against BPD based on that relationship.