• Title/Summary/Keyword: Inflammatory diseases

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Involvement of Proinflammatory Cascades in Nitrosative Damage in PC12 Cells

  • Um, So-Young;Jang, Jung-Hee;Na, Hye-Kyung;Surh, Young-Joon
    • Proceedings of the PSK Conference
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    • 2002.10a
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    • pp.324.2-325
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    • 2002
  • Recent studies suggest that inflammatory events are implicated in a variety of human diseases including cancer and neurodegenerative diseases. and non-steroidal anti-inflammatory drugs have beneficial effects in treatment or prevention of these disorders. It has been reported that expression of cyclooxygenase (COX)-2 and nitric oxide synthase and subsequent production of prostaglandin (PG) and nitric oxide (NO). respectively are elevated in many inflammatory disorders. (omitted)

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Homology Modeling of Chemokine Receptor CXCR3: A Novel Therapeutic Target against Inflammatory Diseases

  • M, Shalini;Madhavan, Thirumurthy
    • Journal of Integrative Natural Science
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    • v.8 no.3
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    • pp.164-175
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    • 2015
  • CXCR3 is a C-X-C chemokine receptor type 3 also known as GPR9 and CD183. CXCR3 is a G-Protein coupled chemokine receptor which interacts with three endogenous interferon inducible chemokine's (CXCL9, CXCL10 and CXCL11) and is proved to play a vital role in the Th1 inflammatory responses. CXCR3 has been implicated to be associated with various disease conditions like inflammatory diseases, autoimmune diseases, type I diabetes and acute cardiac allograft rejection. Therefore CXCR3 receptor is found to be an attractive therapeutic target for the treatment of inflammatory diseases. Inorder to decipher the biological function of a CXCR3, 3D structure is of much important but the crystal structure for CXCR3 has not yet been resolved. Hence, in the current study Homology modeling of CXCR3 was performed against various templates and validated using different parameters to suggest the best model for CXCR3. The reported best model can be used for further studies such as docking to identify the important binding site residues.

Asthma and the Risk of Rheumatoid Arthritis: An Insight into the Heterogeneity and Phenotypes of Asthma

  • Rolfes, Mary Claire;Juhn, Young Jun;Wi, Chung-Il;Sheen, Youn Ho
    • Tuberculosis and Respiratory Diseases
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    • v.80 no.2
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    • pp.113-135
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    • 2017
  • Asthma is traditionally regarded as a chronic airway disease, and recent literature proves its heterogeneity, based on distinctive clusters or phenotypes of asthma. In defining such asthma clusters, the nature of comorbidity among patients with asthma is poorly understood, by assuming no causal relationship between asthma and other comorbid conditions, including both communicable and noncommunicable diseases. However, emerging evidence suggests that the status of asthma significantly affects the increased susceptibility of the patient to both communicable and noncommunicable diseases. Specifically, the impact of asthma on susceptibility to noncommunicable diseases such as chronic systemic inflammatory diseases (e.g., rheumatoid arthritis), may provide an important insight into asthma as a disease with systemic inflammatory features, a conceptual understanding between asthma and asthma-related comorbidity, and the potential implications on the therapeutic and preventive interventions for patients with asthma. This review discusses the currently under-recognized clinical and immunological phenotypes of asthma; specifically, a higher risk of developing a systemic inflammatory disease such as rheumatoid arthritis and their implications, on the conceptual understanding and management of asthma. Our discussion is divided into three parts: literature summary on the relationship between asthma and the risk of rheumatoid arthritis; potential mechanisms underlying the association; and implications on asthma management and research.

A Study on the Association of Internal Fever with the Beijing Epidemic of 1232 (변경대역과 내상병 발열의 관련성에 대한 연구)

  • Jo Hak-jun
    • Journal of Korean Medical classics
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    • v.36 no.4
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    • pp.69-91
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    • 2023
  • Objectives : This study investigates the association between disease behind the Beijing Epidemic of 1232 and fever causing internal damages as mentioned in the Neiwaishang Bianhuolun. Methods : In order to narrow the fever causing diseases in the Neiwaishang Bianhuolun, the retrospective diagnostic method was used in analysis. Disease behind the 1232 Beijing Epidemic and the fever causing internal damages were categorized. Results : Fever causing diseases in the Neiwaishang Bianhuolun could be categorized as infectious disease, inflammatory disease, irritable bowel syndrome, and fever of unknown origin. The Beijing Epidemic was limited in scale with high fatality, of which possible diseases include infectious disease and inflammatory disease with epidemic medium. Fever from internal damage has a mild prognosis, is non-epidemic, and lacks accompanying symptoms such as acute stomachache, even when it happens with external damage. This narrows the possible diseases to IBS and fever of unknown origin. Conclusions : Among internal damage fever cases treated by Li Dongyuan, there were infectious diseases from the 1232 epidemic and inflammatory diseases with mild prognosis.

Microglia and neuroinflammation: implications in neurodegenerative diseases

  • Suk, Kyoung-Ho
    • Proceedings of the Korean Society of Applied Pharmacology
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    • 2007.04a
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    • pp.15-22
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    • 2007
  • Increasing evidence indicates that microglia-driven chronic inflammatory responses playa pathological role in the central nervous system. Activation of microglia is pivotal in the initiation and progression of neuroinflammation. Inhibition of the microglial activation may provide an effective therapeutic intervention that alleviates the progression of the neurodegenerative diseases. Anti-inflammatory agents may be a useful candidate for such a therapeutic approach. Continual investigation of the mechanisms underlying microglial activation and regulation of neuroinflammation by endogenous or exogenous factors would not only lead to the discovery of novel neuroprotective agents, but also help to understand complex pathophysiology of neurodegenerative diseases.

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Fine Needle Aspiration Cytologic Findings of Inflammatory Breast Diseases (유방 염증성 질환의 세침흡인소견)

  • Yoon, Hye-Kyoung;Park, Seol-Mi;Kang, Mi-Sun;Yang, Young-Il;Kim, Chan-Hwan
    • The Korean Journal of Cytopathology
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    • v.6 no.2
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    • pp.156-162
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    • 1995
  • Fine needle aspiration of the breast is an important diagnostic tool in malignant lesions, but is also useful in differentiation of inflammatory breast diseases mimicking carcinoma clinically and radiologically. Recently, the authors have experienced eight biopsy-proven cases of chronic inflammatory diseases of the breast, which consisted of 4 cases of duct ectasia, 2 cases of fat necrosis, and a case of tuberculous mastitis and granulomatous mastitis respectively. Their cytologic features mainly based on the components and the relative frequency of inflammatory cells were evaluated for differential diagnosis of chronic inflammatory breast diseases. The results are as follows; 1. In cases of duct ectasia, varying amount of neutrophils, mononuclear leukocytes, histiocytes and multinucleated giant cells were intermixed with benign epithelial cell clusters. 2 Abundant fat tissue fragments were diagnostic for fat necrosis. Histiocytes and mononuclear cells were main components but not rich, and neutrophils and giant cells were infrequently observed. 3. Characteristic granulomas composed of epithelioid cells, mononuclear leukocytes and Langhans' type giant cells and lymphocytic infiltrates were conspicuous in tuberculous mastitis, and occasionally neutrophils, necrotic materials and epithelial cell clusters were found 4. In granulomatous mastitis, epithelioid cell granulomas were also noted but numerous neutrophils and histiocytes were intermingled within or outside the granulomas.

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Flavonoids as anti-inflammatory and neuroprotective agents

  • Lee, Heesu;Selvaraj, Baskar;Yoo, Ki Yeon;Ko, Seong-Hee
    • International Journal of Oral Biology
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    • v.45 no.2
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    • pp.33-41
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    • 2020
  • Neuroinflammation is known as the main mechanism implicated in the advancement of neurodegenerative diseases such as Alzheimer's disease and Parkinson's disease. The main feature of neuroinflammation is associated with the activation of microglia. The activated microglia increase proinflammatory cytokine production and induce progressive neuronal cell death. Citrus flavonoids show neuroprotective effects that are associated with the anti-inflammatory action of flavonoids in neurodegenerative diseases. Among these citrus flavonoids, kaempferol, naringin, and nobiletin show inhibitory effects on nuclear factor-κB and mitogen-activated protein kinase signaling pathways that can modulate inflammatory conditions in microglial cells. In the present review, we present the anti-inflammatory activities of citrus flavonoids and therapeutic potential of flavonoids as neuroprotective agents.

Mollugin-mediated Inhibition of Proinflammatory Biomarkers in Lipopolysaccharide-stimulated RAW264.7 Cells

  • Kim, Jin-Kyung;Park, Geun-Mook;Jun, Jong-Gab
    • Biomedical Science Letters
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    • v.18 no.4
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    • pp.338-344
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    • 2012
  • Mollugin is the active compound of Rubia cordifolia, a well known herb widely used in alternative medicines for the treatment of various inflammatory diseases including arthritis and uteritis. In the present study, we investigated the anti-inflammatory effects of mollugin in lipopolysaccharide (LPS)-stimulated RAW264.7 murine macrophage cells. Treatment with mollugin significantly inhibited LPS-induced release of nitric oxide, prostaglandin $E_2$, and inflammatory cytokines, such as tumor necrosis factor-${\alpha}$ and interleukin-6. In addition, mollugin suppressed LPS-induced nuclear factor-kappa B (NF-${\kappa}B$) transcriptional activity. These results suggest that mollugin inhibits LPS-induced expression of inflammatory molecules via NF-${\kappa}B$, at least in part, and indicate the potential value of mollugin as a valuable new drug candidate for the treatment of various inflammatory diseases.

The Root from Heracleum moellendorffii Exerts Anti-Inflammatory Activity via the Inhibition of NF-κB and MAPK Signaling Activation in LPS-Stimulated RAW264.7 Cells

  • Park, Su Bin;Kim, Ha Na;Kim, Jeong Dong;Park, Gwang Hun;Son, Ho-Jun;Eo, Hyun Ji;Song, Jeong Ho;Jeong, Hyung Jin;Jeong, Jin Boo
    • Proceedings of the Plant Resources Society of Korea Conference
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    • 2018.10a
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    • pp.96-96
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    • 2018
  • Although the roots of Heracleum moellendorffii (HM-R) have been long treated for inflammatory human diseases, scientific evidence for the anti-inflammatory activity of HM-R is not sufficient. In this study, we investigated anti-inflammatory activity and mechanism of action of HM-R in LPS-stimulated RAW264.7 cells. HM-R blocked LPS-induced NO and PGE2 production, but not HM-L. HM-R inhibited LPS-induced overexpression of iNOS, COX-2, $IL-1{\beta}$ and IL-6 in RAW264.7 cells. HM-R inhibited LPS-induced $NF-{\kappa}B$ signaling activation through blocking $I{\kappa}B-{\alpha}$ degradation and p65 nuclear accumulation. In addition, HM-R inhibited MAPK signaling activation by attenuating the phosphorylation of ERK1/2, p38 and JNK. Furthermore, HM-R inhibited attenuated LPS-mediated overexpression of the osteoclast-specific factors such as NFATc1, cathepsin K, MCP-1 and TRAP. These results indicate that HM-R may exert anti-inflammatory activity by inhibiting $NF-{\kappa}B$ and MAPK signaling activation. From these findings, HM-R has potential to be a candidate for the development of chemopreventive or therapeutic agents for the inflammation and inflammatory diseases.

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Effects of ginseng on stress-related depression, anxiety, and the hypothalamic-pituitary-adrenal axis

  • Lee, Seungyeop;Rhee, Dong-Kwon
    • Journal of Ginseng Research
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    • v.41 no.4
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    • pp.589-594
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    • 2017
  • Ginseng effectively regulates the immune response and the hormonal changes due to stress, thus maintaining homeostasis. In addition to suppressing the occurrence of psychological diseases such as anxiety and depression, ginseng also prevents stress-associated physiological diseases. Recent findings have revealed that ginseng is involved in adjusting the hypothalamic-pituitary-adrenal axis and controlling hormones, thus producing beneficial effects on the heart and brain, and in cases of bone diseases, as well as alleviating erectile dysfunction. Recent studies have highlighted the potential use of ginseng in the prevention and treatment of chronic inflammatory diseases such as diabetes, rheumatoid arthritis, and allergic asthma. However, the mechanism underlying the effects of ginseng on these stress-related diseases has not been completely established. In this review, we focus on the disease pathways caused by stress in order to determine how ginseng acts to improve health. Central to our discussion is how this effective and stable therapeutic agent alleviates the anxiety and depression caused by stress and ameliorates inflammatory diseases.