Fernando, I.P. Shanura;Kim, Hyun-Soo;Sanjeewa, K.K. Asanka;Oh, Jae-Young;Jeon, You-Jin;Lee, Won Woo
ALGAE
/
v.32
no.3
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pp.261-273
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2017
Fine dust (FD) particles have become a major contributor to air pollution causing detrimental effects on the respiratory system and skin. Although some studies have investigated the effects of FD on the respiratory system, their possible effects on the skin remain under-explored. We investigated the FD mediated inflammatory responses in keratinocytes, present in the outer layers of skin tissues and the transfer of inflammatory potential to macrophages. We further evaluated the anti-inflammatory effects of the polyphenolic derivative, diphlorethohydroxycarmalol (DPHC) isolated from Ishige okamurae against FD-induced inflammation. Size distribution of FD particles was analyzed by scanning electron microscopy. FD particles induced the production of cyclooxygenase-2, prostaglandin E2 ($PGE_2$), interleukin (IL)-$1{\beta}$, and IL-6 in HaCaT keratinocytes and the expression of nitric oxide (NO), inducible nitric oxide synthases (iNOS), $PGE_2$, tumor necrosis factor-${\alpha}$ expression in RAW 264.7 macrophages. Further, we evaluated the inflammatory potential of the culture medium of inflammation-induced HaCaT cells in RAW 264.7 macrophages and observed a marked increase in the expression of NO, iNOS, $PGE_2$, and proinflammatory cytokines. DPHC treatment markedly attenuated the inflammatory responses, indicating its effectiveness in suppressing a broad range of inflammatory responses. It also showed anti-inflammatory potential in in-vivo experiments using FD-stimulated zebrafish embryos by decreasing NO and reactive oxygen species production, while eventing cell death caused by inflammation.
This study investigated the immuno-potentiating activities of Japanese mud shrimp Upogebia major. We examined the effects of enzymatic hydrolysate from U. major on the production of nitric oxide (NO) and prostaglandin $E_2$ ($PGE_2$) and on the expression of pro-inflammation cytokines including $TNF-{\alpha}$, IL-6 and $IL-1{\beta}$ in RAW 264.7 cells. The treatment of six enzymatic hydrolysates of U. major (alcalase, ${\alpha}$-chymotrypsin [${\alpha}-Chy$], trypsin, pepsin, neutrase, protamex) significantly increased the production of NO in RAW 264.7 cells, with ${\alpha}-Chy$ having the greatest effect. This hydrolysate was fractionated by two ultrafiltration membranes at 3 and 10 kDa to created three fractions (below 3 kDa, between 3 and 10 kDa, and above 10 kDa). Of these, the <3 kDa and >10 kDa fractions showed significant increases in NO production. These two fractions also induced $PGE_2$ production in RAW 264.7 cells and showed significant increases in the expression of all cytokines studied. These results suggest that enzymatic hydrolysate from U. major is a potentially useful food material with immune-potentiating effects.
Background: Caveolin, a family of integral membrane proteins are a principal component of caveolae membranes. In this study, we investigated the effect of p38 kinase on differentiation and on inflammatory responses in sodium nitroprusside (SNP)-treated chondrocytes. Methods: Rabbit articular chondrocytes were prepared from cartilage slices of 2-week-old New Zealand white rabbits by enzymatic digestion. SNP was used as a nitric oxide (NO) donor. In this experiments measuring SNP dose response, primary chondrocytes were treated with various concentrations of SNP for 24h. The time course of the SNP response was determined by incubating cells with 1mM SNP for the indicated time period $(0{\sim}24h)$. The cyclooxygenase-2 (COX-2) and type II collagen expression levels were determined by immunoblot analysis, and prostaglandin $E_2\;(PGE_2)$ assay was used to measure the COX-2 activity. The tyrosine phosphorylation of caveolin-1 was determined by immunoblot analysis and immunostaining. Results: SNP treatment stimulated tyrosine phosphorylation of caveolin-1 and activation of p38 kinase. SNP additionally caused dedifferentiation and inflammatory response. We showed previously that SNP treatment stimulated activation of p38 kinase and ERK-1/-2. Inhibition of p38 kinase with SB203580 reduced caveolin-1 tyrosine phosphorylation and COX-2 expression but enhanced dedifferentiation, whereas inhibition of ERK with PD98059 did not affect caveolin-1 tyrosine phosphorylation levels, suggesting that ERK at least is not related to dedifferentiation and COX-2 expression through caveolin-1 tyrosine phosphorylation. Conclusion: Our results indicate that SNP in articular chondrocytes stimulates dedifferentiation and inflammatory response via p38 kinase signaling in association with caveolin-1 phosphorylation.
Objective : The purpose of this study is to investigate the immunohistological effect of Buthus martensi Karsch Herbal-acupuncture in treating the arthritis, performed several experimental items : those are paw edema, $IL-1{\beta}$, IL-6, IL-8, $TNF-{\alpha}$ and $PGE_2$. Methods : All the male Sprague Dawley rats used in this study were bred and maintaned in our pathogen-free rat colony and were 8 weeks of age at the start of to experiment. The experimental model of arthritis was induced by injection of $50{\mu}g/{\mu}{\ell}$ adjuvant(mineral oil mixed Mycobacterium butyricum). Buthus martensi Karsch Herbal-acupuncture was injected into ST36(足三里) of rats daily for 21 days. Immunohistological analysis was carried out to assess paw edema, $IL-1{\beta}$, IL-6, IL-8, $TNF-{\alpha}$ and $PGE_2$ expression in synovial membrane and sera Buthus martensi Karsch Herbal-acupuncture injected. Results : Buthus martensi Karsch Herbal-acupuncture group showed a decrease with statistical significance, in paw edema, $IL-1{\beta}$, IL-6, IL-8, $TNF-{\alpha}$ and $PGE_2$ in synovial membrane and sera compared with control group. Conclusion : Buthus martensi Karsch Herbal-acupuncture stimulation inhibited the development of immunity to adjuvant induced arthritis in rats. Thus, Buthus martensi Karsch Herbal-acupuncture may have preventive effects on autoimmune inflammatory joint diseases as arthritis. The effect of Buthus martensi Karsch Herbal-acupuncture on the immune function and the disease activity in patients with arthritis warrants further investigation.
Objectives : This study was an analysis of the anti-inflammatory, anti-oxidative and skin whitening properties of Gamioncheong-decoctione(GMOCD) extract. Methods : GMOCD(96 g) and 2 L of distilled water were heated at $100^{\circ}C$ for four hours and then concentrated, frozen, freeze-dried, dissolved in distilled water and filtered. The following analysis was completed: cell cytotoxic effect using MTT assay, oxidative products of NO by griess assay, concentration of prostaglandin $E_2(PGE_2)$ by commercially competitive enzyme immunoassay, and cytokines($IL-1{\beta}$, IL-6 and TNF-${\alpha}$) by Bio-Plex$^{(R)}$ Suspension Array System's Bio-Plex Pro$^{TM}$ mouse cytokine, chemokine, and growth factor assay. Anti-oxidative effect was measured using the DPPH method and skin whitening effect using tyrosinase inhibition assay. Results : GMOCD water-extract did not show any toxicity at all doses and cell viability was more than 90 % at all doses. GMOCD water-extract significantly inhibited NO production at doses of 100, 200, $400{\mu}g/ml$, significantly inhibited $PGE_2$ production at doses of 200 and $400{\mu}g/ml$ and reduced the LPS-induced IL-$1{\beta}$, IL-6 and TNF-${\alpha}$ production in a dose-dependent manner. $IL-1{\beta}$ production was significantly reduced at a dose of $400{\mu}g/ml$ and IL-6 production was significantly reduced at doses of 200 and $400{\mu}g/ml$. DPPH free radical scavenging capability had a skin whitening effect rate of more than 50%. Tyrosinase inhibition activity was apparent in a dose-dependent manner. Conclusions : This study suggests that GMOCD water-extract suppressed NO and $PGE_2$ production and inhibited cytokines($IL-1{\beta}$, IL-6 and TNF-${\alpha}$). GMOCD also improved DPPH free radical scavenging capability. GMOCD water-extract increased tyrosinase inhibitory activity in a dose-dependent manner but this was not a statistically significant result.
Objectives : Alpiniae oxyphyllae Fructus (AOF) is an herbal medicine, which has been used for the treatment of fatigue, chills, and poor physical conditions. The objective of this study was to investigate the anti-inflammatory and anti-oxidative effects of AOF hot aqueous extract. Methods : The cytotoxicity of AOF extract was evaluated using the MTT assay. Nitric oxide (NO) production was measured by the Griess reaction. Prostaglandin $E_2$ ($PGE_2$) production was measured by a commercial competitive enzyme immunoassay. Cytokine production (IL-1tion co6, and TNF- F- was measured by ELISA. The anti-oxidative effect of AOF extracts was measured by the DPPH method. Polyphenol and flavonoid contents were measured by Folin-Ciocalteu's phenol reagent and aluminum chloride, respectively. Results : AOF hot aqueous extract did not show toxicity at doses of 25, 50, 100, and $200{\mu}g/mL$. AOF extract significantly inhibited NO production at doses of 100 and $200{\mu}g/mL.PGE_2$ production was inhibited by AOF extract treatment at doses of 100 and $200{\mu}g/mL$. AOF extracts reduced IL-6 production in a dose-dependent manner. IL-1ent maTNF- F- 1ent mannerd IL-6 production in uction at doses of 100 and ${\mu}g/mL$. The DPPH free radical scavenging capability was above 50% at $200{\mu}g/mL$. Conclusion : This study suggests that AOF hot aqueous extract may exert anti-inflammatory and anti-oxidative effects in a dose-dependent manner. Further studies are required for validating the safety and efficacy of AOF.
Objectives : Bilobalide (BIL) is a predominant sesquiterpene trilactone constituent that accounts for a partial portion of the standardized Ginkgonis Folium extract, which has been widely used to treat a variety of neurological disorders involving cerebral ischemia and neurodegeneration. In this study, it was tested whether BIL exhibits anti-inflammatory activities on inflammation response, or not. Methods : To elucidate the molecular mechanisms of BIL on pharmacological and biochemical actions in inflammation, we examined the effect of BIL on pro-inflammatory mediators in lipopolysaccharide (LPS)-stimulated macrophages. The investigation was focused on how BIL affect on inflammation-related mediators including various signals such as nitric oxide (NO), prostaglandin $E_2$ ($PGE_2$), inducible NO synthase(iNOS), cyclooxygenase-2(COX-2), interleukin-6(IL-6), tumor necrosis $factor-{\alpha}$ ($TNF-{\alpha}$), mitogen-activated protein kinases(MAPKs) and nuclear factor kappa-light-chain-enhancer of activated B cells ($NF-{\kappa}B$) in LPS-stimulated RAW 264.7 cells. Results : We found that BIL inhibited LPS-induced NO, $PGE_2$, IL-6 and $TNF-{\alpha}$ productions as well as the expressions of iNOS and COX-2. Furthermore, BIL suppressed the LPS-induced phosphorylation for MAPK activation. Conclusions : These results suggest that BIL has inhibitory effects on LPS-induced $PGE_2$, NO, IL-6 and $TNF-{\alpha}$ production, as well as the expressions of iNOS and COX-2 in the murine macrophage. It seems that these inhibitory effects occur by blocking the phosphorylation of MAPKs for activation. Then, BIL suppressed the activation of nuclear factor $NF-{\kappa}B$ in nucleus. These observations suggest that BIL has anti-inflammatory effect by inhibiting.
Objectives : In order to confirm whether extracts of different parts of Zostera marina (ZM), a marine flowering plant, can be used as cosmetic ingredients, this study evaluated their cytotoxicity and cytoprotective effects against ultraviolet B (UVB). Inflammatory responses induced by UV stimuli are also associated with the aging of the skin.Methods : We investigated the effects of ZM extracts on cells through the water soluble tetrazolium salt-1(WST-1) assay for cell viability. In order to investigate the anti-inflammatory effects, we evaluated the suppression of Cyclooxygenase-2 (COX-2) expression by ZM extracts in HaCaT cells with UVB-induced damages, and also evaluated the production of Prostaglandin E2 (PGE2) in RAW 264.7 cells with LPS-induced damages.Results : High cell viabilities above 90% were observed in all types of ZM extracts, except for whole ZM extract at 0.5 mg/ml; in keratinocytes with UVB-induced damages, the cell viabilities were above 80% when treated with all types of ZM extracts. We confirmed their anti-inflammatory effects by investigating the suppression of inflammatory mediators. In keratinocytes with UVB-induced damages, COX-2 expression decreased in the experimental group treated with ZM extract. Similarly, in RAW 264.7 cells where inflammation was induced with LPS, the biosynthesis of PGE2 was inhibited.Conclusion : These results suggest that ethanol extracts from Zostera marina may have value as the potential anti-inflammatory medicinal plant. Also based on the abovementioned results, ZM extract protects skin cells from UV-induced damages, and thus can be used in topically applied products for skin protection.
Journal of the Korean Association of Oral and Maxillofacial Surgeons
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v.27
no.3
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pp.204-208
/
2001
The purpose of this study is to examine the change of enzymeimmuno-assay for $prostaglandinE_2$ in the synovial fluid lavage specimen of patients with mandibular fracture patients without condylar fracture. For this study, fourteen patients (eight males, six females) with mandibular fractures without condylar fracture was investigated to analyse the synovial fluid from upper temporomandibular joint cavities. Synovial fluid was collected from TMJ cavities of mandibular fracture patients before open reduction and after one week of open reduction, and then stored in liquid nitrogen tank after centrifuge. Two synovial fluid lavage samples of TMJs of 2 asymptomatic served as normal controls referred from other data. The concentrations of $PGE_2$ were measured by use of $PGE_2$ EIA System ($Amersham^{(R)}$). The following results were obtained: 1) In nine patients, the concentrations of $PGE_2$ are lower after open reduction than before. 2) In three patients, the concentrations of $PGE_2$ are higher after open reduction than before. 3) There was no statistical significant between the preoperative group and postoperative 7 days (p>0.05), but there was some difference between the two groups. In conclusion, the results suggest that $PGE_2$ probably does not play as important role in the harm of TMJ.
Kwon, Han Ol;Lee, Minhee;Kim, Ok-Kyung;Ha, Yejin;Jun, Woojin;Lee, Jeongmin
Nutrition Research and Practice
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v.10
no.3
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pp.265-273
/
2016
BACKGROUND/OBJECTIVES: The inhibitory effect of Hijikia fusiforme (HF) extracts on degenerative osteoarthritis was examined in primary cultured rat cartilage cells and a monosodium iodoacetate (MIA)-induced osteoarthritis rat model. MATERIALS/METHODS: In vitro, cell survival and the expression of matrix metalloproteinases (MMPs), collagen type I, collagen type II, aggrecan, and tissue inhibitor of metalloproteinases (TIMPs) was measured after $H_2O_2$ ($800{\mu}M$, 2 hr) treatment in primary chondrocytes. In vivo animal study, osteoarthritis was induced by intra-articular injection of MIA into knee joints of rats, and then RH500, HFE250 and HFE500 were administered orally once a day for 28 days. To determine the anti-inflammatory effects of HFE, nitric oxide (NO), prostaglandin $E_2$ ($PGE_2$) expression were measured. In addition, real-time PCR was performed to measure the genetic expression of MMPs, collagen type I, collagen type II, aggrecan, and TIMPs. RESULTS: In the in vitro assay, cell survival after $H_2O_2$ treatment was increased by HFE extract (20% EtOH). In addition, anabolic factors (genetic expression of collagen type I, II, and aggrecan) were increased by HFE extract (20% EtOH). However, the genetic expression of MMP-3 and 7, known as catabolic factors were significantly inhibited by treatment with HFE extract (20% EtOH). In the in vivo assay, anabolic factors (genetic expression of collagen type I, II, aggrecan, and TIMPs) were increased by oral administration of HFE extract. However, the genetic expression of MMP-3 and 7, known as catabolic factors, and production of NO and $PGE_2$ were significantly inhibited by treatment with oral administration of HFE extract. CONCLUSION: HFE extract inhibited articular cartilage degeneration through preventing extracellular matrix degradation and chondrocyte injury.
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