• Title/Summary/Keyword: chronic inflammation

Search Result 1,014, Processing Time 0.029 seconds

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

  • Choi, Chang Won
    • Clinical and Experimental Pediatrics
    • /
    • 제60권7호
    • /
    • pp.203-207
    • /
    • 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.

Communicating clinical research to reduce cancer risk through diet: Walnuts as a case example

  • Toner, Cheryl D.
    • Nutrition Research and Practice
    • /
    • 제8권4호
    • /
    • pp.347-351
    • /
    • 2014
  • Inflammation is one mechanism through which cancer is initiated and progresses, and is implicated in the etiology of other conditions that affect cancer risk and prognosis, such as type 2 diabetes, cardiovascular disease, and visceral obesity. Emerging human evidence, primarily epidemiological, suggests that walnuts impact risk of these chronic diseases via inflammation. The published literature documents associations between walnut consumption and reduced risk of cancer, and mortality from cancer, diabetes, and cardiovascular disease, particularly within the context of the Mediterranean Diet. While encouraging, follow-up in human intervention trials is needed to better elucidate any potential cancer prevention effect of walnuts, per se. In humans, the far-reaching positive effects of a plant-based diet that includes walnuts may be the most critical message for the public. Indeed, appropriate translation of nutrition research is essential for facilitating healthful consumer dietary behavior. This paper will explore the translation and application of human evidence regarding connections with cancer and biomarkers of inflammation to the development of dietary guidance for the public and individualized dietary advice. Strategies for encouraging dietary patterns that may reduce cancer risk will be explored.

Reduced Anti-inflammatory Activity of Acetylsalicylic Acid Maltol Ester, Aspalatone

  • Han, Byung-Hoon;Suh, Dae-Yeon;Yang, Hyun-Ok;Lee, Song-Jin;Kim, Hyun-Pyo
    • Archives of Pharmacal Research
    • /
    • 제17권3호
    • /
    • pp.166-169
    • /
    • 1994
  • The anti-inflammatory activity of acetylsalicylic acid maltol ester (aspalatone), a potential anti-thombotic agent, was studied using the several experimental animal models of inflammation. By oral administration, aspalatone was found to possess the weak anti-inflammatory activity in models of an acute inflammation, in which aspalatone showed approximately one-third to one-fourth of the anti-inflammatory activity of aspirin. Aspalatone (200 mg/kg/day) and aspirin (50 mg/kg/day), however, did not show the inhibitory activity against granuloma fomation and adjuvant-induced arthritis.

  • PDF

Therapeutic Potential of Medicinal Plants and Their Constituents on Lung Inflammatory Disorders

  • Kim, Hyun Pyo;Lim, Hyun;Kwon, Yong Soo
    • Biomolecules & Therapeutics
    • /
    • 제25권2호
    • /
    • pp.91-104
    • /
    • 2017
  • Acute bronchitis and chronic obstructive pulmonary diseases (COPD) are essentially lung inflammatory disorders. Various plant extracts and their constituents showed therapeutic effects on several animal models of lung inflammation. These include coumarins, flavonoids, phenolics, iridoids, monoterpenes, diterpenes and triterpenoids. Some of them exerted inhibitory action mainly by inhibiting the mitogen-activated protein kinase pathway and nuclear transcription $factor-{\kappa}B$ activation. Especially, many flavonoid derivatives distinctly showed effectiveness on lung inflammation. In this review, the experimental data for plant extracts and their constituents showing therapeutic effectiveness on animal models of lung inflammation are summarized.

In vitro Anti-inflammation Effect of Adventitious Shoots of Toona sinesis in Propionibacterium acnes-induced Skin Dermatitis

  • Hyeon-Ji Lim;In-Sun Park;Seung-Il Jeong;Kang-Yeol Yu;Chan-Hun Jung
    • 한국자원식물학회:학술대회논문집
    • /
    • 한국자원식물학회 2020년도 추계국제학술대회
    • /
    • pp.73-73
    • /
    • 2020
  • Toona sinensis (TS) leaf is known to antinociceptive, antioxidative stress and skin moisturizing effects. Acnes vulgaris is a chronic skin disease with various symptoms including itchiness, pain and interruption of normal skin function. Propionibacterium acnes (P. acnes) is a major factor in the occurrence of inflammatory acnes. This study evaluated the antioxidant and anti-inflammation effects by TS extract from adventitious shoots. TS extract showed anti-inflammatory activities by suppression of pro-inflammation mediators (iNOS and COX-2) in LPS-stimulated RAW264.7 cells. TS extract also has anti-inflammatory activities by inhibiting the secretion of pro-inflammatory cytokines on P. acnes-stimulated HaCaT cells. These effects were regulated by MAPK signaling pathway. Therefore, we suggest that TS extract from adventitious shoots might have applications as a medicine for treating P. acnes-induced skin diseases.

  • PDF

혈관염증의 분자생물학적특성 및 제어기술 (Biology of vascular inflammation and therapeutic application)

  • 전병화
    • 순환기질환의공학회:학술대회논문집
    • /
    • 순환기질환의공학회 2006년도 제6회 학술대회
    • /
    • pp.10-13
    • /
    • 2006
  • Inflammation plays an important role in the progression of atherosclerosis and plaque destabilization converting a chronic process into an acute disorder with ensuing thromboembolism. Current therapeutic effective in preventing atherosclerosis and stroke such as statins, ASS and RAS inhibitors my exert part of their effects by modulating inflammatory responses in the vessel walls. As alternative approaches, discovery to find having inhibitory action of MMP activity, COX-2, macrophage infiltration, such as APE1/ref-1 and fusion technology for cell permeable protein may provide a new antiatherosclerotic therapy in the future.

  • PDF

Flavonoid and Skin Inflammation

  • Kim, Hyun-Pyo
    • 한국응용약물학회:학술대회논문집
    • /
    • 한국응용약물학회 2007년도 Proceedings of The Convention
    • /
    • pp.67-73
    • /
    • 2007
  • There have been various inflammatory skin disorders in humans including atopic dermatitis, eczema and psoriasis. Although some drugs have been used for these disorders, there is an urgent need for safer and more effective topical anti-inflammatory agents. Plant flavonoids possess anti-inflammatory activity and some of them have multiple pharmacological mechanisms, inhibition of eicosanoid metabolizing enzymes, histamine release and/or down-regulation of pro inflammatory gene expression. These properties of flavonoids may be suitable for treating chronic skin inflammatory disorders. Especially, wogonin, some prenylated flavonoids and biflavonoids have a strong potential as new anti-inflammatory agents by topical application.

  • PDF

Chronic suppurative osteomyelitis with proliferative periostitis related to a fully impacted third molar germ: a report of two cases

  • Park, Joonhyoung;Myoung, Hoon
    • Journal of the Korean Association of Oral and Maxillofacial Surgeons
    • /
    • 제42권4호
    • /
    • pp.215-220
    • /
    • 2016
  • In prolonged chronic osteomyelitis, chronic inflammation and low-grade infections can result in new periosteal bone formation. Chronic osteomyelitis with proliferative periostitis (traditionally termed $Garr{\acute{e}^{\prime}s$ sclerosing osteomyelitis) mainly affects children and young adults. Here, we present two rare cases of an 11-year-old and a 12-year-old patient with suppurative chronic osteomyelitis with proliferative periostitis without any definitive infection source, such as dental caries or periodontitis. The source of infection was likely to be related to the development of a lower right third molar germ with follicular space widening. Management involved antibiotics and the removal of the third molar germ and surgical debridement. Disease remission and a normal appearance was observed at the six-month follow-up visit.

Idiopathic Hypertrophic Spinal Pachymeningitis : Report of Two Cases and Review of the Literature

  • Kim, Jee-Hee;Park, Young-Mok;Chin, Dong-Kyu
    • Journal of Korean Neurosurgical Society
    • /
    • 제50권4호
    • /
    • pp.392-395
    • /
    • 2011
  • Idiopathic hypertrophic spinal pachymeningitis (IHSP) is a rare inflammatory disease characterized by hypertrophic inflammation of the dura mater and various clinical courses that are from myelopathy. Although many associated diseases have been suggested, the etiology of IHSP is not well understood. The ideal treatment is controversial. In the first case, a 55-year-old woman presented back pain, progressive paraparesis, both leg numbness, and voiding difficulty. Initial magnetic resonance imaging (MRI) demonstrated an anterior epidural mass lesion involving from C6 to mid-thoracic spine area with low signal intensity on T1 and T2 weighted images. We performed decompressive laminectomy and lesional biopsy. After operation, she was subsequently treated with steroid and could walk unaided. In the second case, a 45-year-old woman presented with fever and quadriplegia after a spine fusion operation due to lumbar spinal stenosis and degenerative herniated lumbar disc. Initial MRI showed anterior and posterior epidural mass lesion from foramen magnum to C4 level. She underwent decompressive laminectomy and durotomy followed by steroid therapy. However, her conditions deteriorated gradually and medical complications occurred. In our cases, etiology was not found despite through investigations. Initial MRI showed dural thickening with mixed signal intensity on T1- and T2-weighted images. Pathologic examination revealed chronic nonspecific inflammation in both patients. Although one patient developed several complications, the other showed slow improvement of neurological symptoms with decompressive surgery and steroid therapy. In case of chronic compressive myelopathy due to the dural hypertrophic change, decompressive surgery such as laminectomy or laminoplasty may be helpful as well as postoperative steroid therapy.

New Anti-Inflammatory Formulation Containing Synurus deltoides Extract

  • Choi, Yong-Hwan;Son, Kun-Ho;Chang, Hyeun-Wook;Bae, Ki-Hwan;Kang, Sam-Sik;Kim, Hyun-Pyo
    • Archives of Pharmacal Research
    • /
    • 제28권7호
    • /
    • pp.848-853
    • /
    • 2005
  • Synurus deltoides was previously found to possess significant anti-inflammatory activity especially against chronic inflammation, and strong analgesic activity in vivo. In this study, new anti-inflammatory formulation containing S. deltoides extract as a major ingredient was prepared and in vivo activity was evaluated. The plausible action mechanism was also investigated. The new formulation (SAG) contains 1 part of S. deltoides extract, 0.9 part of Angelica gigas extract and 0.9 part of glucosamine sulfate (w/w). SAG inhibited dose-dependently edematic response of arachidonic acid (AA)- and 12-O-tetradecanoyl 13-acetate (TPA)-induced ear edema in mice, which is an animal model of acute inflammation. SAG showed 44.1 % inhibition of AA-induced ear edema at an oral dose of 50 mg/kg. In an animal model of chronic inflammation, SAG clearly reduced the edematic response of 7 -day model of multiple treatment of TPA (38.1 % inhibition at 200 mg/kg/day). Furthermore, SAG (50-800 mg/kg/day) as well as S. deltoides extract (285 mg/kg/day) significantly inhibited prostaglandin $E_2$ production from the skin lesion of the animals of 7-day model. These results were well correlated with in vitro finding that SAG as well as S. deltoides extract reduced cyclooxygenase (COX)-1- and COX-2-induced prostanoid production, measured in mouse bone marrow-derived mast cells. Therefore, these results suggest that SAG possesses anti-inflammatory activity in vivo against acute as well as chronic inflammatory animal models at least in part by inhibition of prostaglandin production through COX-1/COX-2 inhibition. And COX inhibition of SAG is possibly contributed by S. deltoides extract among the ingredients. Although the anti-inflammatory potencies of SAG were less than those of currently used anti-inflammatory drugs, this formulation may have beneficial effect on inflammatory disorders as a neutraceutical.