• The Korea Journal of Herbology
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• v.24 no.1
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• pp.35-40
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• 2009

Objectives : The purpose of this study is to evaluate whether or not a pretreatment with Portulaca oleracea has an antioxidant effect in HCl-ethanol induced gastric mucosal damage. Methods : We elucidated the level of reactive oxygen species (ROS), lipid peroxidation, and two important constituents of antioxidant defense such as superoxide dismutase (SOD), glutathione (GSH) in these effects. Results : The oral administration of crude extract from P. oleracea attenuated the gastritic lesion area, submucosal edema and hemorrhage, and mucosal necrosis induced by HCl-ethanol. The MDA levels of control group were higher than those in the rats given the P. oleracea pretreatment. While the GSH levels of control were decreased, the GSH activity on the gastric mucosal layer maintain normal level in rats given the Portulaca oleracea pretreatment before HCl-ethanol induced gastritis significantly increased. However, the SOD activites were not altered by P. oleracea. Conclusions : The administration of Portulaca oleracea have a protective antioxidant effect against the gastric lesion induced by HCl-ethanol and may therefore be a promising drug for gastritis and gastric ulcer.

• Journal of Life Science
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• v.23 no.9
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• pp.1073-1078
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• 2013

The antioxidant and anti-inflammatory effects of active ingredients in cosmetics are very important. The effects are closely related to the prevention of skin aging. Among medicinal plants, Bletilla striata Reichenbach fil. has well-known pharmacological activity. Extracted samples were prepared using sequential fractionation of ethyl acetate, butanol, and water. The antioxidant effect of the fractions was confirmed by DPPH and ABTS+ radical scavenging. Among the various fractions of B. striata Reichenbach fil., ethyl acetate was associated with a reduction in nitric oxide production, which was induced by LPS (lipopolysaccharide) treatment in a dose-dependent manner. In addition, the production of iNOS (inducible nitric oxide synthase) and COX-2 (cyclooxygenase-2), which are upstream regulators of nitric oxide production, was also inhibited. Thus, the ethyl acetate fraction of B. striata Reichenbach fil. appears to be a potential active ingredient for use in cosmetics.

• Korean Journal of Pharmacognosy
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• v.37 no.4 s.147
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• pp.235-240
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• 2006

We investigated the antioxidant activities such as DPPH radical scavenging capacity, xanthine oxidase inhibitory activity, and superoxide radical scavenging capacity of the aqueous EtOH extract and its solvent fractions of Artemisia scoparia. The ethyl acetate fraction showed high antioxidant activity, compared to positive controls such as ascorbic acid, butylated hydroxy anisole (BHA), trolox, and allopurinol in these assay systems. Moreover, we examined the inhibitory effect of solvent fractions of A. scoparia on the production of pro-inflammatory factors that the nitric oxide (NO), inducible nitric oxide synthase (iNOS), cyclooxygenase-2 (COX-2) and prostaglandin E2 $(PGE_2)$ production activated with LPS $(1{\mu}g/ml)$ in murine macrophage cell line RAW264.7. The amounts of protein levels were determined by immunoblottting. Tn the sequential fractions of hexane and dichloromethane inhibited the NO and $PGE_2$ production and the protein level of iNOS and COX-2. These results suggest that A. scoparia may have anti-inflammatory activity through the antioxidant activity and inhibition of pro-inflammatory factors.

• Herbal Formula Science
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• v.28 no.4
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• pp.407-428
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• 2020

Objectives : The purpose of this study is to review the effect of Guaruhaebaekbaekju-tang (GHBJ), Guaruhaebaekbanha-tang (GHBH) and Jisilhaebaekgyeji-tang (JHGJ) by summarizing Korean and English articles. Methods : The study was based on 23 papers published since 1995. Papers were searched on seven domestic electronic databases including Koreantk, NDSL, RISS, KISS, OASIS, Koreamed and Library of Korea University and three international electronic databases including PUBMED, Embase and Science Direct. Results : 1. 23 research papers were collected, including 13 in vitro studies, 6 in vivo studies, 2 case reports and 2 literature studies. 2. GHBJ, GHBH and JHGJ showed significant myocardial protective and anti-hyperlipidemic and anti-inflammatory effects. In addition, researches on anti-oxidant, thrombosis, and atherosclerosis have been conducted in various ways. 3. It can be confirmed that these studies are related to Chest and back pain (胸背痛), Insomnia by chest paralysis (胸痺不得臥), Stabbing pain that radiates from chest to back (心痛徹背), Chest numbness (心中痞), Obstruction of qi in the chest (留氣結在胸), Fullness sensation in chest (胸滿) among the terms. Conclusion : Through these results, close association was found between classic description and modern research about GHBJ, GHBH and JHGJ, and the possibility of providing objective evidence was confirmed. To improve the quality of the study, large scale studies will be required to evaluate the authority of GHBJ, GHBH and JHGJ.

• Environmental Analysis Health and Toxicology
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• v.23 no.1
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• pp.41-45
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• 2008

Algal fucoidan is a marine polysaccharide containing sulfur with a wide variety of biological activities including anti-inflammatory and anti-thrombotic effects. Although antioxidants can inhibit inflammatory signals through inhibiting activator protein-1 and/or nuclear factor-kappaB activation, it is obscure whether fucoidan directly scavenges oxy-radicals or indirectly regulates oxidant production and/or antioxidant defense system. The antioxidant activities of fucoidan against peroxyl radicals, peroxynitrites and hydroxyl radicals were determined by the total oxy-radical scavenging capacity (TOSC) assay. The specific TOSC values of fucoidan against peroxyl radicals, peroxynitrites or hydroxyl radicals were $282{\pm}60$, $43{\pm}1$ or $40{\pm}1\;TOSC/mg/mL$, respectively. These specific TOSC values against peroxyl radicals, peroxynitrites or hydroxyl radicals are 23, 12, or 13% of the specific TOSC values of glutathione, a positive control, respectively. These results suggest that fucoidan has direct oxy-radical scavenging capacity, which may be related with anti-inflammatory effect of fucoidan.

• KSBB Journal
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• v.28 no.5
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• pp.303-309
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• 2013

The extract from Lysimachia foenum-graecum (LFE) has been known to possess various instructive characters including anti-oxidant, anti-obesity, fungicidal activities. However, the accurate mechanism of those effects of LFE is not well known. In that respect, we evaluated the apoptotic effect and anti-cancer efficacy of extracts of LFE in MCF-7 breast cancer cells. In this study, we hypothesized that LFE may exert cancer cell apoptosis through regulating p53 and mitochondria-mediated apoptotic proteins. And this substance can generate ROS to cause free radical-induced apoptosis. Accordingly, the generation of ROS by LFE triggers the activation of p53 which are accompanied by pro-apoptotic protein activation and suppression of pro-survival proteins. We determined with MTT assay, flow cytometry for detection of intracellular ROS and Annexin V-PI staining, Western blotting. Consequently, our researches demonstrated that the treatment of LFE to breast cancer cells resulted in an activation of p53, Puma, Bax, cleaved-PARP and an inhibition of Bcl-2 expressions.

• Journal of Life Science
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• v.8 no.5
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• pp.520-525
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• 1998

Effects of plant growth regulators and anti-oxidants for rapid multiplication of Cymbidium kanran were investigated. The best gelling agent was 2.5 g/1 gelrite which needed less quantity (about 28%) and half price than 9 g/1 chemi-cal agar. Undefined edible agar was only a little bit worse than chemical agar in growth, but the price was half as much as the latter. The higher concentration of BA and NAA, the deeper browning of medium that prevented from performing its functions of plant growth regulators. Polyvinylpyrrolidone (M.W. 40,000) was the most effective anti-oxidant other than ascorbic acid, aspartic acid, and rutin in protecting the browning of medium, enhancing the effect of plant growth regulators, and thus prolonging the subculture cycle. Vigorous seedlings were obtained by 0.1∼1.0 mg/1 BA,0.1 mg/1 NAA and 1 g/1 polyvinylpyrrolidone treatments. Therefore, the best result for growth and econo-mic aspects in rhizome culture of Cymbidium kanran were obtained by using MS basal medium with 2.5 g/1 gelrite, 1 g/1 polyvinylpyrrolidone, 0.1∼1.0 mg/1 BA and 0.1 mg/1 NAA.

• KSBB Journal
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• v.27 no.6
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• pp.367-374
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• 2012

Cigarette smoking (SM) is considered to be well known environmental toxin which contributes to the onset of various diseases. SM cause direct lungs damage, activate lungs inflammatory responses, and in some cases leads to the development of lung cancer. Cytokines in injured starfish (Asterina pectinifera) is the potential changes in its expression during the regeneration process. Especially, expression of TGF-${\beta}1$ has increased in arm cut starfish extract after eight days. Also, starfish including saponin like the ginseng. Saponin is widely used in the world because of some effective pharmacological activities. Therefore, the current study was designed to elucidate the pharmacological activities of starfish extract against cigarette smoking induced damage in cell line and pulmonary tissue. We investigate that the effect of eight days starfish extract after arm cut (8d) and intact starfish extract on cell line and mouse lung injury by SM. In cell proliferation analysis, although cigarette smoking extract (CSE) was co-treated, the higher proliferation ability is shown in 8d treatment than intact starfish extract. 8d and intact starfish extract was directly transported to pulmonary cells through respiratory organ by nebulizer inhalation. In this case of cigarette smoking, the pulmonary structure was damaged and functions become abnormal. However, 8d treated groups showed similar with the control group compared with SM group. Among them, 8d was proved to be more effective than intact starfish extract. These results demonstrate that 8d could more protect pulmonary structure and function than intact starfish extract against cigarette smoking by ginseng like saponin and regulation of inflammatory cytokines.

• Journal of Life Science
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• v.23 no.12
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• pp.1553-1556
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• 2013

Flavonoids are one of the major components found in the peels of citrus fruits. Present evidence has suggested that polymethoxyflavonoids, including nobiletin and tangeretin isolated from Citrus sunki, have many biological properties, such as anti-inflammatory, anti-oxidant, and anti-obesity capabilities. Here, we investigated the effect of Citrus sunki peel extract and its possible mechanisms on oxidative stress-induced MMP-1 expression, a major marker of skin photoaging. $H_2O_2$ induced MMP-1 expression in a dose- and time-dependent manner. Extract of Citrus sunki peel (1-25 ${\mu}g/ml$) dose-dependently decreased MMP-1 mRNA levels. When $H_2O_2$ was combined with Citrus sunki peel extract, the phosphorylation of ERK was further decreased compared to a single treatment with $H_2O_2$ alone. Moreover, U0216, an MEK inhibitor, markedly prevented the production of MMP-1. These data suggest that Citrus sunki peel extract has demonstrated protective activity against oxidative damage on MMP-1 expression, and ERK MAP kinase may be involved.

• Journal of Microbiology and Biotechnology
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• v.32 no.9
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• pp.1146-1153
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• 2022

Many probiotic species have been used as a fermentation starter for manufacturing functional food materials. We have isolated Bifidobacterium animalis subsp. lactis LDTM 8102 from the feces of infants as a novel strain for fermentation. While Glycine max has been known to display various bioactivities including anti-oxidant, anti-skin aging, and anti-cancer effects, the immune-modulatory effect of Glycine max has not been reported. In the current study, we have discovered that the extract of Glycine max fermented with B. animalis subsp. lactis LDTM 8102 (GFB 8102), could exert immuno-modulatory properties. GFB 8102 treatment increased the production of immune-stimulatory cytokines in RAW264.7 macrophages without any noticeable cytotoxicity. Analysis of the molecular mechanism revealed that GFB 8102 could upregulate MAPK2K and MAPK signaling pathways including ERK, p38, and JNK. GFB 8102 also increased the proliferation rate of splenocytes isolated from mice. In an animal study, administration of GFB 8102 partially recovered cyclophosphamide-mediated reduction in thymus and spleen weight. Moreover, splenocytes from the GFB 8102-treated group exhibited increased TNF-α, IL-6, and IL-1β production. Based on these findings, GFB 8102 could be a promising functional food material for enhancing immune function.