• Title/Summary/Keyword: Inflammatory diseases

Search Result 2,383, Processing Time 0.029 seconds

Pathogenesis of Inflammatory Muscle Diseases (염증성 근질환의 발병기전)

  • Lee, Dong Kuck
    • Annals of Clinical Neurophysiology
    • /
    • v.4 no.1
    • /
    • pp.1-6
    • /
    • 2002
  • The inflammatory myopathies are divided into three major and distinct subsets as polymyositis(PM), dermatomyositis(DM), and inclusion body myositis(IBM). This distinction is based on unique clinical, demographic, laboratory, histologic, therapeutic, prognostic, and immunopathologic criteria. Although the causes of PM, DM, and IBM are unknown, autoimmune mechanisms are implicated, as supported by their association with other putative or definite autoimmune diseases or viruses, the evidence for a T cell-mediated myocytotoxicity or complement-mediated microangiopathy, the presence of various autoantibodies and their response to immunotherapies. But in IBM the immune-mediated process is weaker and IBM patients do not readily respond to immunotherapies, there are convincing immunopathological signs to suggest that a definite autoimmune component, similar to that seen in PM, also plays a role in the cause of IBM.

  • PDF

Muscle pathology in neuromuscular disorders

  • Park, Young-Eun;Shin, Jin-Hong;Kim, Dae-Seong
    • Annals of Clinical Neurophysiology
    • /
    • v.22 no.2
    • /
    • pp.51-60
    • /
    • 2020
  • Muscle pathology findings may guide the diagnosis of neuromuscular disorders since they are helpful for understanding the pathological processes causing muscle weakness and also provide significant clues for the diagnosis of muscle diseases. Recent advances in molecular genetics mean that a muscle biopsy can be omitted when diagnosing inherited muscle diseases. However, the muscle pathology can still play a role in those cases and its findings are also required when diagnosing inflammatory myopathies.

The Role of Macrophage Polarization in Infectious and Inflammatory Diseases

  • Labonte, Adam C.;Tosello-Trampont, Annie-Carole;Hahn, Young S.
    • Molecules and Cells
    • /
    • v.37 no.4
    • /
    • pp.275-285
    • /
    • 2014
  • Macrophages, found in circulating blood as well as integrated into several tissues and organs throughout the body, represent an important first line of defense against disease and a necessary component of healthy tissue homeostasis. Additionally, macrophages that arise from the differentiation of monocytes recruited from the blood to inflamed tissues play a central role in regulating local inflammation. Studies of macrophage activation in the last decade or so have revealed that these cells adopt a staggering range of phenotypes that are finely tuned responses to a variety of different stimuli, and that the resulting subsets of activated macrophages play critical roles in both progression and resolution of disease. This review summarizes the current understanding of the contributions of differentially polarized macrophages to various infectious and inflammatory diseases and the ongoing effort to develop novel therapies that target this key aspect of macrophage biology.

Ethnobotany, Phytochemistry, and Pharmacology of Angelica decursiva Fr. et Sav.

  • Ali, Md Yousof;Seong, Su Hui;Jannat, Susoma;Jung, Hyun Ah;Choi, Jae Sue
    • Natural Product Sciences
    • /
    • v.25 no.3
    • /
    • pp.181-199
    • /
    • 2019
  • Angelica decursiva Fr. et Sav. (Umbelliferae) has traditionally been used to treat different diseases due to its antitussive, analgesic, and antipyretic activities. It is also a remedy for thick phlegm, asthma, and upper respiratory infections. Recently, the leaf of A. decursiva has been consumed as salad without showing any toxicity. This plant is a rich in different types of coumarin derivatives, including dihydroxanthyletin, psoralen, dihydropsoralen, hydroxycoumarin, and dihydropyran. Its crude extracts and pure constituents possess anti-inflammatory, anti-diabetic, anti-Alzheimer disease, anti-hypertension, anti-cancer, antioxidant, anthelmintic, preventing cerebral stroke, and neuroprotective activities. This valuable herb needs to be further studied and developed not only to treat these human diseases, but also to improve human health. This review provides an overview of current knowledge of A. decursiva metabolites and their biological activities to prioritize future studies.

Cell Autonomous Circadian Systems and Their Relation to Inflammation

  • Annamneedi, Venkata Prakash;Park, Jun Woo;Lee, Geum Seon;Kang, Tae Jin
    • Biomolecules & Therapeutics
    • /
    • v.29 no.1
    • /
    • pp.31-40
    • /
    • 2021
  • All living beings on earth have an important mechanism of 24-h periodicity, which controls their physiology, metabolism, and behavior. In humans, 24-h periodicity is regulated by the superchiasmatic nucleus (SCN) through external and environmental cues. Peripheral organs demonstrate circadian rhythms and circadian clock functions, and these are also observed in cultured cell lines. Every cell contains a CLOCK: BMAL1 loop for the generation of circadian rhythms. In this review, we focused on cell autonomous circadian rhythms in immune cells, the inflammatory diseases caused by disruption of circadian rhythms in hormones, and the role of clock genes in inflammatory diseases.

The Beneficial Effect of Avocado on Skin Inflammation in a Mouse Model of AD-like Skin Lesions

  • Myung, Noh-Yil;Kim, Su-Jin
    • Korean Journal of Plant Resources
    • /
    • v.32 no.6
    • /
    • pp.705-713
    • /
    • 2019
  • Avocado, superfood, contains a variety of essential nutrients and phytochemicals. The purpose of this study was to explore whether avocado could modulate skin inflammation in vivo. We elucidated the pharmacological effects of avocado on compound 48/80- or histamine-induced scratching behaviors and 2, 4-dinitrochlorobenzene (DNCB)-induced atopic dermatitis (AD)-like skin lesions in mice. Additionally, we investigated the anti-inflammatory activity of avocado and its underlying mechanism including its effect on the expression levels of inflammatory-related genes and nuclear factor-κB (NF-κB) in DNCB-induced AD-like skin lesions. The findings of this study demonstrate that avocado attenuated AD-clinical symptoms including itching, eczematous, erythema and dryness and histamine levels in mice. Moreover, avocado suppressed both inflammatory cytokines expression as well as NF-κB and caspase-1 activation in AD-like skin lesions in mice. Taken together, these results demonstrate that avocado may be a potential candidate for treating skin inflammatory diseases like AD.

Monitoring and Safety of Azathioprine Therapy in Inflammatory Bowel Disease

  • Kim, Mi Jin;Choe, Yon Ho
    • Pediatric Gastroenterology, Hepatology & Nutrition
    • /
    • v.16 no.2
    • /
    • pp.65-70
    • /
    • 2013
  • Azathioprine is the most common drug used to maintain clinical remission in inflammatory bowel disease. This drug is also important as a steroid-sparing agent in steroid-dependent and chronically active inflammatory bowel disease. Nevertheless, many questions remain concerning the optimal treatment regimens of azathioprine. The dose of azathioprine has to be reduced or the therapy has to be discontinued frequently because of drug-induced toxicity. In this review, we discuss monitoring of thiopurines, adverse events, malignant complications and how to use azathioprine safely and usefully.

Anti-inflammatory Effects of Asiaticoside on Inducible Nitric Oxide Synthase and Cyclooxygenase-2 in RAW 264.7 Cell Line (Asiaticoside가 RAW 264,7 세포에서 Inducible nitric oxide synthase와 Cyclooxygenase-2에 미치는 항염증 작용에 관한 연구)

  • 주상섭;배옥남;정진호
    • Toxicological Research
    • /
    • v.19 no.1
    • /
    • pp.33-37
    • /
    • 2003
  • Asiaticoside has been tested for the ability as an anti-inflammatory drug using lipopolysaccharide (LPS)-stimulated macrophage cell line (RAW 264.7 cell). LPS treatment induced dramatically inducible nitric oxide synthase (iNOS) in RAW cells. However, asiaticoside inhibited LPS-stimulated iNOS induction in a concentration-dependent manner. Especially, higher concentrations (>50 $\mu\textrm{M}$) of asiaticoside completely blocked iNOS induction. In addition, LPS-stimulated expression of inducible cyclooxygenase (COX-2) and interleukin-1 $\alpha$ (IL-1 $\alpha$) was inhibited by asiaticoside treatment. Asiaticoside up to 50 $\mu\textrm{M}$ still required to inhibit COX-2 and IL-1 $\alpha$ induced by LPS. Consistent with these findings, treatment with asiaticoside suppressed do novo synthesis and cellular accumulation of prostaglandin $E_2$ to a lesser extent, suggesting that asiaticoside blocked the induction as well as the activity of COX-2 These results suggest the possibility that asiaticoside may be effective therapeutic agents for septic shock and other inflammatory diseases.

Biological Therapy for Inflammatory Bowel Disease in Children

  • Na, So-Young;Shim, Jung-Ok
    • Pediatric Gastroenterology, Hepatology & Nutrition
    • /
    • v.15 no.1
    • /
    • pp.13-18
    • /
    • 2012
  • The pathogenesis of inflammatory bowel diseases is not very well understood; it is currently thought to be caused by the interaction between genetic factors, environmental factors, intestinal microbes, and immune factors. Biological agents such as anti-tumor necrosis factor (anti-TNF) are widely being used as therapeutic agents. Infliximab, a chimeric monoclonal IgG1 antibody against tumor necrosis factor, has been demonstrated to have an effect in the induction and maintenance of remission in Crohn's disease in children. The effects of biological agents, typified by anti-TNFs, in inflammatory bowel disease in children; the recent concern on the administration of biological agents in combination with immunomodulators; and 'Top-down' therapy are some of the topics covered in this review.

The Anti-inflammatory Mechanism of Xanthoangelol E is Through the Suppression of NF-${\kappa}B$/Caspase-1 Activation in LPS-stimulated Mouse Peritoneal Macrophage

  • Seoa, Jung-Ho;Kim, Su-Jin
    • Biomedical Science Letters
    • /
    • v.18 no.4
    • /
    • pp.345-354
    • /
    • 2012
  • Angelica keiskei has exhibited numerous pharmacological effects including antitumor, antimetastatic, and antidiabetic effects. However, the anti-inflammatory effects and mechanisms employed by xanthoangelol E isolated from Angelica keiskei are incompletely understood. In this study, we attempted to determine the effects of Xanthoangelol E on the lipopolysaccharide (LPS)-stimulated mouse peritoneal macrophage. The findings of this study demonstrated that xanthoangelol E inhibited the production of tumor necrosis factor (TNF)-${\alpha}$, interleukin (IL)-6, and prostaglandin $E_2$ ($PGE_2$). Xanthoangelol E inhibited the enhanced levels of cyclooxygenase (COX)-2 and inducible nitric oxide synthase (iNOS) caused by LPS. Additionally, we showed that the anti-inflammatory effect of xanthoangelol E is through the regulation of the activation of nuclear factor (NF)-${\kappa}B$ and caspase-1. These results provide novel insights into the pharmacological actions of xanthoangelol E as a potential candidate for the development of new drugs to treat inflammatory diseases.