• Title/Summary/Keyword: Il-6 inhibitory effect

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Comparative Study of 25 Herbal Formulas on Anti-Inflammatory Effect (한약 처방 25종에 대한 항염증 효능 비교 연구)

  • Lee, Jin-Ah;Ha, Hye-Kyung;Jung, Da-Young;Lee, Ho-Young;Lee, Jun-Kyung;Huang, Dae-Sun;Shin, Hyeun-Kyoo
    • The Journal of Korean Obstetrics and Gynecology
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    • v.23 no.3
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    • pp.101-111
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    • 2010
  • Purpose: To provide the information of efficacy for herbal formulas of high frequency, it was evaluated the anti-inflammatory effect. In many studies, plantderived anti-inflammatory efficacies have been investigated for their potential inhibitory effects on lipopolysaccharide (LPS)-stimulated macrophages. This study was performed to examine the anti-inflammatory effects of herbal formulas of high frequency on LPS-stimulated RAW 264.7 cells. Methods: Anti-inflammatory activity was investigated in 25 herbal formula extracts in vitro and in vivo. To investigate the anti-inflammatory effect in vitro model, using LPS-stimulated macrophages, RAW 264.7 cell line. The productions of nitric oxide(NO), prostaglandin(PG)$E_2$, interleukin(IL)-6 and tumor necrosis factor(TNF)-$\alpha$ were examined in RAW 264.7 cells, in the presence of the herbal formulas. RAW 264.7 cells were incubated with LPS $1\;{\mu}g/mL$ and herbal formulas for 18 hours. As an in vivo, using a rat model of carrageenin-induced paw edema. The paw volume was measured at 2 and 4 hours following carrageenin-induced paw edema in rats. Results: 8 kinds of herbal formula inhibited NO production by LPS-stimulated in some concentration, but the effect of NO inhibition is weak. 12 kinds of herbal formula inhibited $PGE_2$ production by LPS-stimulated over the 30%. Among them Gumiganghwal-tang, Sagunja-tang, Samchulkunbi-tang, Insampaedok-san and Hwangryunhaedok-tang inhibited IL-6 production by LPS-stimulated but TNF-$\alpha$ was not inhibited. 12 kinds of herbal formula reduced the carrageenin-induced paw edema in rats. Particularly, 3 kinds of herbal formula(Gumiganghwal-tang, Ssanghwa-tang and Soshiho-tang) were better than indomethacin. Conclusion: These results suggest that Gumiganghwal-tang, Sangunja-tang, Samchulkunbi-tang, Insampaedok-san and Hwangryunhaedok-tang have antiinflammatory activity.

Anti-Inflammatory and Antioxidant Effect of Astaxanthin Derived from Microalgae (미세조류 유래 astaxanthin의 항염증 및 항산화 효과)

  • Kwak, Tae-Won;Cha, Ji-Young;Lee, Chul-Won;Kim, Young-Min;Yoo, Byung-Hong;Kim, Sung-Gu;Kim, Jong-Myoung;Park, Seong-Ha;An, Won-Gun
    • Journal of Life Science
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    • v.21 no.10
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    • pp.1377-1384
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    • 2011
  • Astaxanthin (ATX) is a red-orange carotenoid pigment that occurs naturally in a wide variety of living organisms. In this study we investigated the inhibitory effects of ATX on the induction of inducible nitric oxide synthase (iNOS), nitric oxide (NO), proinflammatory cytokines, nuclear factor-kappa B(NF-${\kappa}B$) and reactive oxygen species (ROS) in lipopolysaccharide (LPS)-stimulated RAW264.7 cells. In addition, we tested the superoxide radical scavenging activity of ATX by scavenging assay. iNOS and NF-${\kappa}B$ expressions were determined by immunoblot analysis. Interleukin (IL)-6 and tumour necrosis factor-${\alpha}$ (TNF-${\alpha}$) were assayed by ELISA. NO production was monitored by measuring the amount of nitrite. ROS was examined by using the 2', 7'-Dichlorodihydrofluorescin diacetate (DCFH-DA) method. At a concentration of 100 ${\mu}M$, ATX inhibited the expression level of LPS-induced NF-${\kappa}B$, as well as the production of LPS-induced NO and proinflammatory cytokines (IL-6 and TNF-${\alpha}$), by suppressing iNOS expression. In particular, the maximal inhibition rate of IL-6 and TNF-${\alpha}$ production by ATX (100 ${\mu}M$) was 65.2----- and 21.2-----, respectively. In addition, ATX inhibited the LPS-induced transcriptional activity of NF-${\kappa}B$, and this was associated with suppressing the translocations of NF-${\kappa}B$ from the cytosol to the nucleus. Moreover, at various concentrations (25-100 ${\mu}M$), ATX inhibited the intracellular level of ROS. At a concentration of 5 mg/ml, the superoxide radical scavenging activity of ATX was 1.33 times higher than ${\alpha}$-tocopherol of the same concentration. These results showed that ATX inhibited the expression of iNOS and the production of NO and proinflammatory cytokines resulting from ROS production and NF-${\kappa}B$ activation in macrophages. Furthermore, ATX was found to be more effective in superoxide radical scavenging activities compared to ${\alpha}$-tocopherol. These findings are expected to strengthen the position of ATX as anti-inflammatory medicine and antioxidant.

Effect of Reduction in the Adipose Accumulation of Akkermansia muciniphila in Mature 3T3-L1 Adipocytes (성숙한 3T3-L1 지방세포에서 Akkermansia muciniphila의 지방축적 감소 효과)

  • Shim, Hyeyoon;Lim, Sookyoung;Shin, Joo-Hyun;Lee, Dokyung;Seo, Jae-Gu;Kim, Hojun
    • Journal of Korean Medicine for Obesity Research
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    • v.19 no.2
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    • pp.106-112
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    • 2019
  • Objectives: The aim of this study was to observe the reduction of lipid accumulation by treatment with Akkermansia muciniphila extract on 3T3-L1 adipocytes. Methods: After treating pasteurized Akk. muciniphila strains in HT-29 colorectal cancer cell, the relative expression of interleukin (IL)-8, tumor necrosis factor-α, IL-6, and IL-1β mRNA was analyzed by real time polymerase chain reaction, respectively. 27 strains of Akk. muciniphila which have anti-inflammatory effects were selected. 3T3-L1 pre-adipocytes were treated with Akk. muciniphila for 24 hr and then measured the toxicity using water soluble tetrazolium salt assay. The cells were incubated for 4 days and then differentiated into adipocytes using the medium including adipogenic reagents for 10 days. The Akk. muciniphila was treated when the medium was exchanged for differentiation medium at 4th day and insulin medium at 6th day. To observe the lipid accumulation, the cells were stained with Oil red O dye and were measured using a spectrophotometer. Results: In the cytotoxicity test, the cell viability of 3T3-L1 pre-adipocytes was significantly increased compared to the control group which untreated with Akk. muciniphila, and there was no cytotoxicity of Akk. muciniphila at 1×107 CFU/mL. The results on Oil red O staining and absorbance measurements were showed a significant decrease in lipid accumulation in the group which was treated with Akk. muciniphila compared to the control group. Conclusions: In our results, Akk. muciniphila has the inhibitory effect of lipid accumulation in 3T3-L1 adipocytes. This suggests that Akk. muciniphila could be help to improve obesity.

CBT-SL5, a Bacteriocin from Enterococcus faecalis, Suppresses the Expression of Interleukin-8 Induced by Propionibacterium acnes in Cultured Human Keratinocytes

  • Lee, Ye-Jin;Choi, Hye-Jeong;Kang, Tae-Wook;Kim, Hyung-Ok;Chun, Myung-Jun;Park, Young-Min
    • Journal of Microbiology and Biotechnology
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    • v.18 no.7
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    • pp.1308-1316
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    • 2008
  • Propionibacterium acnes is known to playa pivotal role in the pathogenesis of acne vulgaris. CBT-SL5 is one of the antimicrobial peptides from Enterococcus faecalis SL5, and it has shown antimicrobial activity against P. acnes. The aim of this study was to investigate the anti-inflammatory effect of CBT-SL5 on the inflammation induced by P. acnes in cultured human keratinocyes. Cultured human keratinocytes derived from neonatal foreskin were treated with heat-killed P. acnes to induce inflammation, and then various concentrations of CBT-SL5 were added to the P. acnes-treated keratinocytes. The mRNA expression and protein secretion of interleukin (IL)-8, an inflammation marker, was analyzed by real-time reverse transcription polymerase chain reaction and enzyme-linked immunosorbent assay, respectively. We also analyzed the nuclear factor-kappa B (NF-$\kappaB$) p65 translocation by performing immunofluorescent staining. P. acnes treatment up regulated the IL-8 mRNA expression in the keratinocytes, and this was brought about through both toll-like receptor (TLR)2 and TLR4. At the concentrations of 10, 50, and 100 ng/ml, CBT-SL5 significantly down regulated the P. acnes-induced IL-8 mRNA expression and protein production (p<0.05). At 6 hand 12 h of the treatment, CBT-SL5 significantly suppressed the P. acnes-induced IL-8 mRNA expression. Secretion of IL-8 protein was significantly reduced at 24 h. The functional inhibitory activity of CBT-SL5 was shown by CBT-SL5 suppressing the P. acnes-induced NF-$\kappaB$ translocation from the cytoplasm to the nucleus. These results demonstrated that CBT-SL5 suppressed the P. acnes-induced IL-8 expression in keratinocytes. Therefore, CBT-SL5 may be a novel anti-inflammatory treatment for acne.

Antibacterial effect of citrus press-cakes dried by high speed and far-infrared radiation drying methods

  • Samarakoon, Kalpa;Senevirathne, Mahinda;Lee, Won-Woo;Kim, Young-Tae;Kim, Jae-Il;Oh, Myung-Cheol;Jeon, You-Jin
    • Nutrition Research and Practice
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    • v.6 no.3
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    • pp.187-194
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    • 2012
  • In this study, the antibacterial effect was evaluated to determine the benefits of high speed drying (HSD) and far-infrared radiation drying (FIR) compared to the freeze drying (FD) method. Citrus press-cakes (CPCs) are released as a by-product in the citrus processing industry. Previous studies have shown that the HSD and FIR drying methods are much more economical for drying time and mass drying than those of FD, even though FD is the most qualified drying method. The disk diffusion assay was conducted, and the minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC) were determined with methanol extracts of the dried CPCs against 11 fish and five food-related pathogenic bacteria. The disk diffusion results indicated that the CPCs dried by HSD, FIR, and FD prevented growth of all tested bacteria almost identically. The MIC and MBC results showed a range from 0.5-8.0 mg/mL and 1.0-16.0 mg/mL respectively. Scanning electron microscopy indicated that the extracts changed the morphology of the bacteria cell wall, leading to destruction. These results suggest that CPCs dried by HSD and FIR showed strong antibacterial activity against pathogenic bacteria and are more useful drying methods than that of the classic FD method in CPCs utilization.

Antioxidant and Anti-inflammatory Effects of Ficus erecta var. sieboldii Leaf Extract in Murine Macrophage RAW 264.7 Cells (좁은잎천선과나무(Ficus erecta var. sieboldii) 잎 추출물이 대식세포 RAW 264.7 세포에서 미치는 항산화 및 항염증 효과)

  • Jung, Yong-Hwan;Ham, Young-Min;Yoon, Seon-A;Oh, Dae-Ju;Kim, Chang-Suk;Yoon, Weon-Jong
    • Korean Journal of Plant Resources
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    • v.31 no.4
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    • pp.303-311
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    • 2018
  • In this study, a preliminary evaluation of the antioxidant and anti-inflammatory activity of the Ficus erecta var. sieboldii (Miq.) King (FES) leaf extract has been performed to assess its potential as a natural resource for food and medicinal materials. FES was extracted using 70% EtOH and then fractionated sequentially using n-hexane, $CH_2Cl_2$, EtOAc, and n-BuOH. To screen for antioxidant and anti-inflammatory agents effectively, the inhibitory effect of the FES extracts on the production of oxidant stresses (DPPH, xanthine oxidase, and superoxide) and pro-inflammatory factors (NO, iNOS, COX-2, $PGE_2$, IL-6, and $IL-1{\beta}$) in the murine macrophage cell line RAW 264.7 activated with lipopolysaccharide (LPS) was examined. Among the sequential solvent fractions of FES, the $CH_2Cl_2$ and EtOAc fractions showed decreased production of oxidant stresses (DPPH, xanthine oxidase and superoxide), and the hexane and $CH_2Cl_2$ fractions of FES inhibited the production of pro-inflammatory factors (NO, iNOS, COX-2, and $PGE_2$). The $CH_2Cl_2$ fraction also inhibited the production of pro-inflammatory cytokines ($TNF-{\alpha}$, IL-6, and $IL-1{\beta}$). These results suggest that FES has a significant effects on the production of oxidant stresses and pro-inflammatory factors and may be used a natural resource for antioxidant and anti-inflammatory agents.

Inhibitory Effects of Type IV Collagenase by Disulfiram (Disulfiram에 의한 type IV collagenase 저해효과)

  • Sin, Doo-Il;Park, Jae-Bok;Park, Kwan-Kyu;Cho, Chang-Ho;Oh, Hoon-Kyu;Choi, Chang-Hyuk;Cho, Hyun-Ji;Chang, Young-Chae
    • Journal of Life Science
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    • v.16 no.6
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    • pp.964-971
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    • 2006
  • The cancer cells, characterized by local invasion and distant metastasis, are very dependant on extracellular matrix. The expression of matrix metalloproteinases (MMPs) has been implicated in the invasion and metastasis of cancer cells. Among the human MMPs, matirx metalloproteinase-2 (MMP-2) and matrix metalloproteinse-9 (MMP-9) are key enzymes that degrade type IV collagen of the matrix. Here, we studied the effect of disulfiram, an anti-tumor compound, on the suppression of the tumor invasion and the activity of MMP-2, MMP-9 in human osteosarcoma cells (U2OS). Disulfiram had the type IV collagenase inhibitory activity, the effect of inhibition of gene and protein expression, and these inhibitions were responsible for blocking invasion through cell mediated and non-cell mediated pathways. In conclusion, disulfiram inhibited expression of MMP-2 and MMP-9, and regulated the invasion of U2OS, Caki-1 and Caski. These observations raise the possibility of clinical therapeutic applications for disulfiram used as a potential inhibitor of cancer invasion.

Anti-inflammatory Effect of HaGF peptide of Harmonia axyridis (무당벌레에서 유래된 HaGF peptide를 이용한 염증 억제 효과)

  • Kim, Dong-Hee;Kim, Hyeon-Jeong;Lee, Jin-Young;Hwang, Jae-Sam;Kim, In-Woo;Lee, Seul-Gi;Jeong, Hyeon-Guk;An, Bong-Jeun
    • Journal of Life Science
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    • v.23 no.4
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    • pp.495-500
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    • 2013
  • Harmonia axyridis is known to display diverse biological activities, such as growth promotion. However, few studies have investigated the effect of H. axyridis on inflammation of the skin. In this study, we explored the anti-inflammatory effect of the Harmoniasin gene fragment (HaGF) peptide from H. axyridis on macrophage cells. During the entire experimental period, 5, 25, 50, and 100 ${\mu}g/ml$ of HaGF showed no cytotoxicity. However, at these concentrations, HaGF inhibited the activity of iNOS and COX-2 by 51% and 49%, respectively. In addition, the HaGF extract reduced the release of inflammatory cytokines, including TNF-a and IL-6. Therefore, HaGF has been LPS-induced macrophage Raw 264.7 cells could be expected from the inhibitory effects of the inflammatory.

Effects of Ojeok-san on the Maturation of Follicles and NGF Expression in Rats with Estradiol Valerate-induced Polycystic Ovaries (오적산(五積散)이 Estradiol Valerate로 유발된 다낭성 난소 모델에서 난포의 성숙 및 NGF발현에 미치는 영향)

  • Kim, Jong-Dae;Seo, Il-Bock;Lee, Dong-Nyung;Kim, Hyung-Jun
    • The Journal of Korean Obstetrics and Gynecology
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    • v.24 no.1
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    • pp.27-41
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    • 2011
  • Objectives: This study was designed to investigate the effect of Ojeok-san(OJS) on the estradiol valerate(EV)-induced polycystic ovaries(PCO) in rats. Methods: PCO was induced by single intramuscular injection with estradiol valerate(EV)(4mg) in female rats. Normal group(n=8) were injected with sesame oil and orally administrated distilled water for sixty days. PCO control group (n=8) were injected with EV and orally administrated distilled water for sixty days. OJS treated group(n=8) were injected with EV and orally administrated OJS for sixty days. Then, we measured weights of body, ovaries, adrenal glands and uterus of rats. The histomorphometrical changes of ovaries were also evaluated. And we observed the NGF and CRF expression by immunohistochemistry. Results: The results were as follows - The weights(mg) of ovaries in OJS treated group($57.4{\pm}9.4$) were significantly increased(p < 0.05) compared with PCO control group($42.3{\pm}8.5$). - The numbers of mature follicles in OJS treated group($9.3{\pm}2.5$) were significantly increased(p < 0.05) compared with PCO control group($6.1{\pm}2.1$). - The expressions of NGF-immunoreactive cells in the ovarian granulosa cells in OJS treated group were weaker than PCO control group. Conclusion: From the these results, we concluded that Ojeok-san(OJS) has inhibitory effect on the development of EV-induced polycystic ovary. And it's effect maybe related with decreased NGF activities in the ovary.

Investigation of Pharmacological Stability of Hyeonggaeyeongyotang Gagambang by Formulation Changes for Foaming Tablet (형개연교탕(荊芥連翹湯) 가감방(가감방)의 발포정 제형 변화에 따른 약리학적 안정성 연구)

  • Cho, Nam Joon;Gang, Seong Gu;Kim, Ji Young;Han, Hyo Sang;Kim, Kee Kwang
    • The Korea Journal of Herbology
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    • v.33 no.5
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    • pp.67-72
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    • 2018
  • Objectives : Natural extracts have been extensively studied to replace single agent drugs that cause a variety of side effects. However, studies of changes to the formulation of natural extracts has not been nearly proceed. We aimed to investigate whether pharmacological stability of hyeonggaeyeongyotang gagambang (HYT) is altered by formulation changes for foaming tablet. Methods : In this study, we performed freeze - drying of HYT, which is known to have antioxidant and anti - inflammatory properties, and then changed the formulation by foaming. Results : As a result, the foaming reaction appeared normally when HYT foamed tablets were put into water, and almost all of the substances were dissolved in the aqueous solution. In addition, we confirmed using high-performance liquid chromatograph that the geniposide used as an indicator material of HYT was stable in most of the formulations. It was confirmed that the change of HYT formulation did not affect the antioxidant efficacy by the 2,2'-azino-bis-3-ethylbenzothiazoline-6-sulphonic acid assay. Moreover, quantitative real-time PCR confirmed that the inhibitory effect of HYT on IL-$1{\beta}$ mRNA expression induced by lipopolysaccharides treatment in murine macrophage RAW 264.7 cells was similar in the solution of foaming tablet. Conclusions : These results suggest that the materials with various pharmacological effects can be stably maintained even when the formulation is changed by the foaming action of HYT. Our results are expected to provide important basic knowledge on formulation changes using various natural extracts.