Park, Seong Gyu;Jegal, Kyung-Hwan;Jung, Ji Yun;Back, Young Doo;Byun, Sung Hui;Kim, Young Woo;Cho, Il Je;Park, Sang Mi;Kim, Sang Chan
Journal of Physiology & Pathology in Korean Medicine
/
v.28
no.2
/
pp.178-185
/
2014
Leonuri Fructus, a semen of Leonuri Herba, has been used for the treatment of menstrual disorders such as amenorrhea, dysmenorrhea and leukorrhea and for the remedy of hyperemia. The present study was conducted to evaluate the anti-inflammatory effects of the Leonuri Fructus extract (Leonurus japonicus Houtt. EtOH extract; LJE) in vivo and in vitro. In vitro study, the MTT assay for cell viability was conducted to determine the non-cytotoxic concentration of LJE treatment in media. The levels of NO were measured with Griess reagent. Pro-inflammatory cytokines were detected by ELISA method. The inflammation-related proteins of this study were detected by immunoblot anlaysis. The increases of NO production and iNOS expression were detected in LPS-treated cells compared with control, but LJE attenuated the increases of NO and iNOS by LPS. LJE reduced the production of TNF-${\alpha}$ and IL-$1{\beta}$ induced by LPS stimulation. LJE suppresses the signaling pathways of NF-${\kappa}B$ and MAPKs in LPS-induced macrophage cells. In vivo study, carrageenan-induced hind paw acute edematous inflammation rat model was used for evaluation of anti-inflammatory activity of LJE. LJE significantly inhibited the increases of hind paw swelling, skin thicknesses and inflammatory cell infiltrations, and decreased the numbers of mast cell induced by carrageenan injection. These results suggest that LJE has an anti-inflammatory therapeutic potential, which is mediated through modulating NF-${\kappa}B$ activation and MAPK phosphorylation. Inhibition of the rat paw edema induced by carrageenan is considered as direct evidence that LJE may be a useful source to treat inflammation.
Kim, Young-Hyun;Lee, Young-Jun;Park, Sun-Ok;Lee, Sang-Jong;Lee, Ok-Hwan
Korean Journal of Food Science and Technology
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v.45
no.2
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pp.262-266
/
2013
The aim of this study was to determine the total phenol, total flavonoids, and proanthocyanidin contents of fermented black rice and its fractions, as well as to assess the antioxidant activities. Antioxidative activities were assessed in various in vitro models using 2,2-diphenyl-1-picrylhydrazyl (DPPH), 2,2'-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) (ABTS), reducing power, ferric ion reducing antioxidant power (FRAP), and nitrite scavenging activity (Griess reagent assay). Our results show that the antioxidant activity was significantly higher in the low-molecular fraction of fermented black rice than in the other samples (p<0.05). Among the fermented black rice and its fractions, the low-molecular fraction had the highest total phenol ($109.2{\pm}2.9$ mg GAE, gallic acid equivalent/g), total flavonoids ($39.4{\pm}0.8$ mg RE, rutin equivalent/g), and proanthocyanidin ($32.9{\pm}1.4$ mg CE, catechin equivalent/g) contents, which correlated strongly with its antioxidative activity. Considering the high consumer demand due to the beneficial health effects, fermented black rice and its fractions can be utilized to develop functional food, as well as health-promoting and pharmaceutical agents.
Background: Chronic inflammation in the brain has known to be associated with the development of a various neurological diseases including dementia. In general, the characteristic of neuro-inflammation is the activated microglia over the brain where the pathogenesis occurs. Pro-inflammatory repertoires, interleukin-1${\beta}$ (IL-1${\beta}$) and nitric oxide (NO), are the main causes of neuro-degenerative disease, particularly in Alzheimer's disease (AD) which is caused by neuronal destruction. Those pro-inflammatory repertoires may lead the brain to chronic inflammatory status, and thus we hypothesized that chronic inflammation would be inhibited when pro-inflammatory repertoires are to be well controlled by inactivating the signal transduction associated with inflammation. Methods: In the present study, we examined whether biphenyl dimethyl dicarboxylate (DDB), an active compound from Schizandra chinensis Baillon, inhibits the NO production by a direct method using Griess reagent and by RT-PCR in the gene expression of inducible nitric oxide synthase (iNOS) and IL-1${\beta}$. Western blots were also used for the analysis of NF-${\kappa}B$ and I${\kappa}B$. Results: In the study, we found that DDB effectively inhibited IL-1${\beta}$ as well as NO production in BV-2 microglial cell, and the translocation of NF-${\kappa}B$ was comparably inhibited in the presence of DDB comparing those to the positive control, lipopolysaccharide. Conclusion: The data suggested that the DDB from Schizandra chinensis Baillon may play an effective role in inhibiting the pro-inflammatory repertoires which may cause neurodegeneration and the results imply that the compound suppresses a cue signal of the microglial activation which can induce the brain pathogenesis such as Alzheimer's disease.
Kim, Dae-Sung;Park, Sook-Jahr;Jo, Mi-Jeong;Park, Sang-Mi;Kim, Sang-Chan;Byun, Sung-Hui
Herbal Formula Science
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v.17
no.2
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pp.151-162
/
2009
Herba Artemisiae Capillaris is the dried bud of Artemisia capillaris Thunb, which has been used for expelling heat to loosen the bowels and normalizing gallbladder function to cure jaundice in traditional oriental medicines. In the present study, we evaluated the anti-inflammatory effects of the aqueous extracts of Herba Artemisiae Capillaris (HAC) in LPS-activated Raw 264.7 cells. Cells were treated with $1\;{\mu}g/ml$ of LPS 1 h before adding HAC extract. Cell viability was determined by MTT assay, and the relative level of NO was measured with Griess reagent. TNF-$\alpha$, IL-$1{\beta}$, and IL-6 cytokines were detected by ELISA. During the entire experimental period, all three doses of HAC extract (0.03, 0.10 and 0.30 mg/ml) had no significant cytotoxicity. LPS-activated cells showed increased NO levels and iNOS expressions compared to control. However, these increases were dramatically attenuated by treatment with HAC extract. Moreover, the inhibitory effects of HAC extract occurred in a dose-dependent manner. In addition, HAC extract reduced the translocation of $NF{\kappa}B$ into nuclear. HAC reduced production of IL-$1{\beta}$ and IL-6 by LPS, although it had no effects on TNF-$\alpha$. These results demonstrate that liquiritigenin exerts anti-inflammatory effects, which results from the inhibition of $NF{\kappa}B$ activation in macrophages, thereby decreasing production of iNOS and proinflammatory cytokines. Taken together, these results indicate that the aqueous extracts of Herba Artemisiae Capillaris warrant further development as an anti-inflammatory agent for the treatment of gram-negative bacterial infections.
Keum, Soo Yeon;Park, Sang Mi;Jegal, Kyung Hwan;Hwangbo, Min;Cho, Il Je;Park, Chung A;Kim, Sang Chan;Jee, Seon Young
Herbal Formula Science
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v.24
no.4
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pp.243-257
/
2016
Objectives : Illicium verum Hook. f. has been known to possess antimicrobial, antioxidant, antifungal, anti-inflammatory, insecticidal, analgesic, sedative, convulsive activities, it has been rarely conducted to evaluate the immuno-biological activity. The present study was examined to evaluate the anti-inflammatory effects of the Illicium verum Hook. f. water extracts (IVE) in vivo and in vitro. Methods : Cell viability was measured by MTT assay. The relative levels of NO were measured with Griess reagent. iNOS, COX-2, $NF-{\kappa}B$ and target proteins were detected by immunoblot analysis, and levels of cytokines were analyzed by ELISA kit. Anti-edema effect was determined in the carrageenan (CA)-induced paw edema model in rats. Results : All dosages of IVE used in MTT assay had no significant cytotoxicity. The increases of NO production and iNOS expression were detected in LPS-treated cells compared with control. However, these increases were attenuated by treatment with IVE. Also, IVE reduced the elevated production of $TNF-{\alpha}$, $IL-1{\beta}$ and IL-6 by LPS. IVE inhibited the $p-I{\kappa}B$ and translocation of $NF-{\kappa}B$ to nuclear. Furthermore, IVE significantly inhibited the increases of hind paw swelling, skin thicknesses and inflammatory cell infiltrations induced by CA injection. Therefore, IVE will be favorably inhibited the acute edematous inflammations. Conclusion : These results provide evidences that anti-inflammatory effect of IVE is partly due to the reduction of some inflammatory mediators by suppression of $NF-{\kappa}B$ pathway.
Nikfarjam, Bahareh Abd;Adineh, Mohtaram;Hajiali, Farid;Nassiri-Asl, Marjan
Journal of Pharmacopuncture
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v.20
no.1
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pp.52-56
/
2017
Objectives: Neutrophils represent the front line of human defense against infections. Immediately after stimulation, neutrophilic enzymes are activated and produce toxic mediators such as pro-inflammatory cytokines, nitric oxide (NO) and myeloperoxidase (MPO). These mediators can be toxic not only to infectious agents but also to host tissues. Because flavonoids exhibit antioxidant and anti-inflammatory effects, they are subjects of interest for pharmacological modulation of inflammation. In the present study, the effects of rutin on stimulus-induced NO and tumor necrosis factor $(TNF)-{\alpha}$ productions and MPO activity in human neutrophils were investigated. Methods: Human peripheral blood neutrophils were isolated using Ficoll-Hypaque density gradient centrifugation coupled with dextran T500 sedimentation. The cell preparations containing > 98% granulocytes were determined by morphological examination through Giemsa staining. Neutrophils were cultured in complete Roswell Park Memorial Institute (RPMI) medium, pre-incubated with or without rutin ($25{\mu}M$) for 45 minutes, and stimulated with phorbol 12-myristate 13-acetate (PMA). Then, the $TNF-{\alpha}$, NO and MPO productions were analyzed using enzyme-linked immunosorbent assay (ELISA), Griess Reagent, and MPO assay kits, respectively. Also, the viability of human neutrophils was assessed using tetrazolium salt 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl tetrazolium bromide (MTT), and neutrophils were treated with various concentrations of rutin ($1-100{\mu}M$), after which MTT was appended and incubated at $37^{\circ}C$ for 4 hour. Results: Rutin at concentrations up to $100{\mu}M$ did not affect neutrophil viability during the 4-hour incubation period. Rutin significantly decreased the NO and $TNF-{\alpha}$ productions in human peripheral blood neutrophils compared to PMA-control cells (P < 0.001). Also, MPO activity was significantly reduced by rutin (P < 0.001). Conclusion: In this in vitro study, rutin had an anti-inflammatory effect due to its inhibiting NO and $TNF-{\alpha}$ productions, as well as MPO activity, in activated human neutrophils. Treatment with rutin may be considered as a therapeutic strategy for neutrophil-mediated inflammatory/autoimmune diseases.
Pumpkin seed oil (PSO) was investigated for its parasite elimination activity and efficacy in treating disorders of the prostate gland and urinary bladder. We confirmed the composition of PSO and identified its ability to improve vessels. Gas chromatography coupled with mass spectrometric (GC-MS) system was used for PSO composition analysis. Cytotoxicity and cell proliferation were confirmed by Cell Counting Kit-8 (CCK-8) assay. Nitric oxide(NO) production was measured with Griess reagent, and intercellular adhesion molecule (ICAM)-1 and vascular cell adhesion molecule (VCAM)-1 mRNA expression levels were measured by reverse transcription polymerase chain reaction (RT-PCR). As a result, PSO revealed the presence of several components such as linoleic acid, oleic acid, palmitic acid and stearic acid. Cytotoxic effects of PSO were not observed, and PSO increased nitric oxide production in human umbilical vein endothelial cells (HUVEC). Additionally, TNF-${\alpha}$-induced cell proliferation and ICAM-1 expression in HUVEC were inhibited by PSO treatment, whereas VCAM-1 expression was not significantly reduced. Taken together, these results show that PSO is worthy of study as a candidate food material for improvement of vascular disease.
Objectives : The use of natural products with therapeutic properties is as ancient as human civilisation and, for a long time, mineral, plant and animal products were the main sources of drugs. Catalposide, the major iridoid glycoside isolated from the stem bark of Catalpa ovata G. Don (Bignoniceae) has been shown to possess anti-microbial and anti-tumoral properties. Heme oxygenase-1 (HO-1) is a stress response protein and is known to play a protective role against the oxidative injury. In this study, we examined whether catalposide could protect Neuro 2A cells, a kind of neuronal cell lines, from oxidative damage through the induction of HO-1 protein expression and HO activity. We also examined the effects of catalposide on the productions of tumor necrosis $factor-{\alpha}\;(TNF-{\alpha})$ and nitric oxide (NO) on RAW 264.7 macrophages activated with the endotoxin lipopolysaccharide. Methods : HO-1 expression in Neuro 2A cells was measured by Western blotting analysis. NO and $TNF--{\alpha}$ produced by RAW 264.7 macrophage were measured by Griess reagent and enzyme-linked immunosorbent assay, respectively. Results : The treatment of the cells with catalposide resulted in dose- and time-dependent up-regulations of both HO-1 protein expression and HO activity. Catalposide protected the cells from hydrogen peroxide-induced cell death. The protective effect of catalposide on hydrogen peroxide-induced cell death was abrogated by zinc protoporphyrin IX, a HO inhibitor. Additional experiments revealed the involvement of CO in the cytoprotective effect of catalposide-induced HO-1. In addition, catalposide inhibited the productions of $TNF--{\alpha}$ and NO with significant decreases in mRNA levels of $TNF--{\alpha}$ and inducible NO synthase. Conclusions : Our results indicate that catalposide is a potent inducer of HO-1 and HO-1 induction is responsible for the catalposide-mediated cytoprotection against oxidative damage and that catalposide may have therapeutic potential in the control of inflammatory disorders.
Objectives : This study was designed to investigate of the anti-inflammatory effects of Schisandra chinensis seed oil(SSO) on the production of pro-inflammatory substances in lipopolysaccharide (LPS)-stimulated RAW 264.7 macrophages.Methods : SSO was measured the production of pro-inflammatory factor (NO, PGE2, IL-1β iNOS and, COX-2) in lipopolysaccharide (LPS)-stimulated RAW 264.7 macrophages. we used the following methods : cell viability assay, Griess reagent assay, enzyme-linked immunosorbent assay, Western blotting analysis.Results : The cell viability of SSO(0∼500 μl/mL) processing group was 96.9% and the processing of SSO didn't have an effect on the cytotoxicity. The inhibitory effect of the nitric oxide (no) production of SSO(500 μg/mL, 50 μg/mL, 10 μg/mL) was each 70.3%, 37.6% and 26.5%. IL-1β production inhibition ability of SSO(500 μg/mL, 100 μg/mL) was each 49.88% and 48.8%. PGE2 production inhibition ability of SSO(500 μg/mL, 100 μg/mL) was each 49.88% and 73.1%, 70.5%. By using SSO, it experimented about iNOS protein expression inhibition ability, that is the NO production enzyme. iNOS protein expression increased in the group processing LPS independently. iNOS protein expression decreased in the group processing SSO together. The expression of the COX-2 protein decreased 89.6%, 81.8% in the group processing SSO. The significance was in the relationship with NO formation inhibition with the relationship with the PGE2 formation inhibition and iNOS protein, it confirmed in SSO with the COX-2 protein.Conclusions : Stimulation of the RAW 264.7 cells with LPS caused an elevated production of nitric oxide (NO), IL-1β and PGE2 which was markedly inhibited by the pretreatment with SSO without causing any cytotoxic effects. The reduced expressions of iNOS protein were consistent with the reductions in NO production in the culture media. SSO may be useful for the treatment of various inflammatory diseases.
Objective: Oxidative stress plays a key role in the pathogenesis of male infertility. But, the adverse effects of oxidative biomarkers on sperm quality remain unclear. This study aimed to investigate the levels of nitric oxide (NO), 8-hydroxydesoxyguanosine (8-OHdG), and total antioxidant capacity (TAC) oxidative biomarkers in seminal plasma and their relationship with sperm parameters. Methods: A total of 77 volunteers participated in the study, including fertile (n = 40) and infertile men (n = 37). NO, 8-OHdG, and TAC levels were measured using the ferric reducing ability of plasma, Griess reagent method and an enzyme-linked immunosorbent assay kit, respectively. Results: The mean values of sperm parameters in the infertile group were significantly lower than those in the fertile group (p< 0.001). The mean 8-OHdG in the seminal plasma of infertile men was significantly higher (p= 0.013) than those of controls, while the mean TAC was significantly lower (p= 0.046). There was no significant difference in NO level between the two groups. The elevated seminal 8-OHdG levels were negatively correlated with semen volume, total sperm counts and morphology (p< 0.001, p= 0.001 and p= 0.052, respectively). NO levels were negatively correlated with semen volume, total sperm counts and morphology (p= 0.014, p= 0.020 and p= 0.060, respectively). Positive correlations between TAC and both sperm count and morphology (p= 0.043 and p= 0.025, respectively) were also found. Conclusion: These results suggested that increased levels of NO and 8-OHdG in seminal plasma could have a negative effect on sperm function by inducing damage to the sperm DNA hence their fertility potentials. Therefore, these biomarkers can be useful in the diagnosis and treatment of male infertility.
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