Lee, Joo Young;Kwon, O Jun;Noh, Jeong Sook;Roh, Seong-Soo
Journal of Applied Biological Chemistry
/
v.59
no.4
/
pp.365-372
/
2016
The objective of the present study was to evaluate the protective effect of red ginseng (RG) according to steaming time on 150 mM HCl/60 % ethanol induced gastric ulcer models in mice. The sample was divided into 3 groups-G (dried ginseng), RG 4 (steamed 4 h and dried ginseng), RG 6 (steamed 6 h and dried ginseng), and determined through in vitro experiments, such as 1,1-diphenyl-2-picrylhydrazyl and 2,2'-azinobis-3-ethyl-benzothiazoline-6-sulfonic acid radical scavenging activity, HPLC analysis, total polyphenol, and flavonoid contents. In vitro experiment results were depended on steaming hours. Based on the results, we chose two samples (G, RG 6) and conducted in vivo experiments. Mice were divided into 5 groups: Nor (normal group), Con (acute gastritis mice treated with distilled water), G (gastris induced by HCl/Ethanol treated with 100 mg/kg G), RG 6 (gastris induced by HCl/ethanol treated with 100 mg/kg RG 6), and SC (gastris induced by HCl/Ethanol treated with 10 mg/kg sucralfate). In our results revealed that RG 6 suppressed elevated reactive oxygen species, and inflammatory related makers, such as cyclooxygenase-2, inducible nitric oxide synthase, tumor necrosis factor alpha, and interleukin-1 beta. In addition, gastric lesion area was improved. These results suggest that RG 6 protects the stomach by attenuating oxidative stress and inflammatory response under gastric ulcer conditions. Therefore, RG 6 should be a potential therapeutic agent for the treatment of acute gastric ulcer.
Journal of the Korean Society of Food Science and Nutrition
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v.34
no.8
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pp.1151-1156
/
2005
The comparison on antioxidative activity of 13 kinds of vegetables that showed efficient oxygen radical absorbance capacity was carried out under in uitro and cellular model using LLC-$ PK_{1}$ renal epithelial cell, and also the total Phenol contents were analyzed. Beets, eggplant, and kale exerted the strong 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical scavenging effect and also these vegetables showed high contents of total phenol, indicating the positive relationship between DPPH radical scavenging effect and total phenol content. In addition, the treatment of 1 mM 2,2'-azobis (2-amidinopropane) dihydrochloride for 24 hrs to LLC-$PK_{1}$ cell susceptible to oxidative stress led to the decline of cell viability to 68.1$\%$, whereas the cellular oxidative damage was ameliorated by vegetables, especially eggplant and cauliflower, resulting in the elevation of cell viability to higher than 90$\%$ at the concentration of 5 $\mu$g/mL. This study suggests that 13 kinds of vegetables exert antioxidative activity under in uitro and cellular oxidative damage model, in particular among them eggplant showed the most effective antioxidative activity with higher total phenol content.
Journal of the Society of Cosmetic Scientists of Korea
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v.39
no.4
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pp.313-322
/
2013
Ultraviolet irradiation in the cells and skin produces reactive oxygen species (ROS), which induces the synthesis of matrix metalloproteinases (MMPs) causing skin photoaging. Using the human dermal fibroblast (HDF), we investigated the antioxidative and anti-aging effects of the extracts from Talinum paniculatum. Talinum paniculatum leaf and stem extracts (LSE) showed free radical scavenging effect by 98.45% at 500 ${\mu}g/mL$ and superoxide radical scavenging effect by 97.01% at 500 ${\mu}g/mL$ in the xanthine/xanthine oxidase system. The photoprotective potential of LSE was tested in HDF exposed to ultraviolet irradiation. It was revealed that LSE had an inhibitory effect on MMP-1 expression in UVA-irradiated HDF without any significant cytotoxicity. The treatment of UVA-irradiated HDF with LSE resulted in dose-dependent decreases in the expression levels of MMP-1 mRNA and protein. Also, UVB-induced cytotoxicity and cell death were effectively suppressed by treatment of LSE. Additionally, the senescence-associated ${\beta}$- galactosidase (SA-${\beta}$-gal) activity was decreased in the presence of LSE. These results suggest that Talinum paniculatum leaf and stem extracts (LSE) may have anti-aging effects and can be used as new functional materials against oxidative stress-mediated skin damages.
Kim, Sok-Ho;Na, Ji-Young;Song, Ki-Bbeum;Choi, Dea-Seung;Kim, Jong-Hoon;Kwon, Young-Bae;Kwon, Jung-Kee
Journal of Ginseng Research
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v.36
no.2
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pp.161-168
/
2012
The abnormal maturation and ossification of articular chondrocytes play a central role in the pathogenesis of osteoarthritis (OA). Inhibiting the enzymatic degradation of the extracellular matrix and maintaining the cellular phenotype are two of the major goals of interest in managing OA. Ginseng is frequently taken orally, as a crude substance, as a traditional medicine in Asian countries. Ginsenoside $Rb_1$, a major component of ginseng that contains an aglycone with a dammarane skeleton, has been reported to exhibit various biological activities, including anti-inflammatory and anti-tumor effects. However, a chondroprotective effect of ginsenoside $Rb_1$ related to OA has not yet been reported. The purpose of this study was to demonstrate the chondroprotective effect of ginsenoside $Rb_1$ on the regulation of pro-inflammatory factors and chondrogenic genes. Cultured rat articular chondrocytes were treated with 100 ${\mu}M$ ginsenoside $Rb_1$ and/or 500 ${\mu}M$ hydrogen peroxide ($H_2O_2$) and assessed for viability, reactive oxygen species production, nitric oxide (NO) release, and chondrogenic gene expression. Ginsenoside $Rb_1$ treatment resulted in reductions in the levels of pro-inflammatory cytokine and NO in $H_2O_2$-treated chondrocytes. The expression levels of chondrogenic genes, such as type II collagen and SOX9, were increased in the presence of ginsenoside $Rb_1$, whereas the expression levels of inflammatory genes related to chondrocytes, such as MMP1 and MMP13, were reduced by approximately 50%. These results suggest that ginsenoside $Rb_1$ has potential for use as a therapeutic agent in OA patients.
Body antioxidant status is an important factor in the prevention of many chronic diseases caused by oxidative stress, especially in the elderly and is affected by health-related habits, such as smoking, drinking and regular physical activity. The aim of this study was to investigate the relationship between these health-related habits and plasma antioxidant status in the elderly. Plasma antioxidant status was examined by determining plasma levels of antioxidant vitamins (vitamin C, A, E, $\beta$ -carotene), total antioxidant status (TAS) and thiobarbituric acid-reactive substance (TBARS) . The subjects included 225 elderly persons aged over 60 yews (63 males, 162 females) living in the Ulsan area. They were interviewed to collect data on their general characteristics and health behaviors such as smoking, exercise and alcohol consumption by means of questionnaires. Their dietary intakes were obtained by means of semi-quantitative food frequency questionnaires (FFQ) The study population was divided into two or three groups according to their smoking, drinking, and exercise status. The ratio of smoker, drinker and exerciser was 16.7%, 31.0% and 44.2% respectively. The dietary antioxidant vitamin intakes were not significantly different among groups of smoking and drinking status, but tended to be higher in non-smokers and non-drinkers than in smokers and drinkers. Plasma vitamin C and $\beta$ -carotene levels were significantly higher in non-smokers, but Plasma vitamin A and TBARS levels were significantly lower in non-smokers than in smokers. Plasma TAS was not significantly different among the smoking groups, but showed a tendency to decrease with an increase in the number of packyear. Plasma vitamin C and $\beta$ -carotene levels of the non-drinkers were higher than those of drinkers and past-drinkers, but plasma vitamin A, C, E, TAS and TBARS showed no difference among the groups of drinker. All vitamin intakes of the exercisers were slightly higher than those of the non-exercisers, but vitamin C intake was significantly higher in female exercisers than in non-exercisers. Plasma $\beta$ -carotene levels were significantly higher in male exercisers and plasma vitamin A, C, E, TAS and TBARS levels tended to be higher in exercisers than in non-exercisers. These results suggested that change to non-smoker, modulation of alcohol consumption and regular exercise could enhance antioxidant defences against reactive oxygen species and might increase the likelihood of a healthier life span.
Journal of the Korean Society of Food Science and Nutrition
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v.43
no.12
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pp.1801-1807
/
2014
Blue mussels (Mytilus edulis) are widely distributed among the world's oceans in various habitats. The purpose of this study was to investigate the effects of freeze-drying on the antioxidant and antigenotoxic activities of blue mussels collected in the Gyeongnam coast area of Korea. Raw (RM) and freeze-dried blue mussel flesh (FRM) were extracted with ethanol, methanol, and water. Antioxidant activities were evaluated on the basis of DPPH radical scavenging activity, oxygen radical absorbance capacity (ORAC), cellular antioxidant capacity (CAC), and antigenotoxic activity (comet assay). Except for the water extract, RM and FRM showed DPPH radical scavenging activities, which increased upon freeze-drying in MeOH extract. The highest ORAC value was observed in water extract of RM and MeOH extract of FRM. CAC was protected against AAPH-induced oxidative stress in HepG2 cells by both RM and FRM extracts. Freeze-drying lowered ORAC value of water extract, whereas it increased CAC activity, suggesting that antioxidant activities varied according to the generated radicals. All extracts from RM and FRM showed antigenotoxic activities by reducing $H_2O_2$-induced DNA damage in human leukocytes. Freeze-drying had no effect on antigenotoxicity of blue mussels. Taken together, these results indicate that blue mussels possess antioxidant and antigenotoxic properties, and freeze-drying might be a useful processing method for blue mussels to retain their maximum physiological potential as a functional food.
Kim, Seong-Jun;Song, Hyo-Jeong;Chang, Mi-Hwa;Choi, Chang-Nam
KSBB Journal
/
v.22
no.2
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pp.91-96
/
2007
The saccharogenic liquid (SFW) obtained by the enzymatic saccharification of food wastes was used as a medium for production of bacterial cellulose (BC). The enzymatic saccharification of food wastes was carried out by the cultivation supernatant of Tricoderma inhamatum KSJ1 culture. Acetobacter xylinum KJ1 was employed for the BC production culture. Under the scaled-up aeration condition of 1.0 vvm, 5.64 g/L of BC was produced in 3 days cultivation in 50 L air circulation bioreactor using SFW medium with addition of 0.4% agar. The productivity was similar to that of 10 L air circulation bioreactor (5.84 g/L). This cultivation method with 50 L air circulation bioreactor decreasing shear stress and increasing oxygen transfer coefficient ($k_La$) was very useful in BC mass production. The physical properties, such as morphology, molecular weight, crystallinity, and tensile strength of BC produced by the static culture (A), the air circulation culture using 10 L bioreactor (B) and 50 L bioreactor (C) were investigated. The number average molecular weight of BCs produced under the different culture conditions (A-C) showed 2,578,000, 1,975,000, and 1,809,000, respectively. Tensile strength was 1.72 $kg/mm^2$, 1.19 $kg/mm^2$, and 1.18 $kg/mm^2$, respectively. All of the BCs had a form of cellulose I representing pure cellulose. The relative degree of crystallinity showed the range of 86.2$\sim$87.8%. BC production by the air circulation culture mode brought more favorable results in terms of the physical properties and its ease of scale-up. Therefore, it is expected that the new BC production method, the air circulation culture using SFW, would contribute greatly to BC-related manufacturing.
Yoon Chang-Soon;Kim Nam-Hyoung;Jang Jae-Hyung;Sang Kyung Jin;Ko In Young;Choi Shin Wook
Journal of the Society of Cosmetic Scientists of Korea
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v.31
no.2
s.51
/
pp.197-206
/
2005
In the present study, the Chuncheon buckwheat extracts prepared from its seed coats, seeds and stems were used to determine anti-oxidative effects, the content of rutin and phytic acid, and the protective role against cadmium at the cellular level. futhermore, it was evaluated whether the buckwheat, mainly known as a healthy food source, might be applicable to functional cosmetics. Up to $100 {\mu}g/mL$ of the extract was not toxic in HaCaT and B16F10 cell lines using MTT assay. The anti-oxidative capacity of superoxide radicals was shown in seed coats extracts > stem extracts=seed extracts. Although its content of rutin, known as one of effective anti-oxidants, mainly exists in the stem, any extract did not eliminate hydroxyl radicals. Phytic acid, known as a heavy metal-chelate agent, was highly concentrated in the stem. The Chuncheon buckwheat extract had $10\%$ protective effect against the treatment of $50{\mu}M$ cadmium at which $50\%$ of HaCaT cells survived. Confocal laser scanning microscope revealed the intracellular generation of reactive oxygen species (ROS) by cadmium treatment. Finally, we identified that the stem extract had the most protective effect on the elimination of ROS.
Lee, Se Hui;Lee, Jin A;Shin, Mi-rae;Lee, Ji Hye;Roh, Seong-soo
The Korea Journal of Herbology
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v.35
no.4
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pp.25-36
/
2020
Objective : Reflux esophagitis is a disease caused by the reflux of gastric acid and inflammation due to unstable gastroesophageal sphincter. The aim of the present study was to clarify the effect of Phellodendri Cortex (PC) on chronic reflux esophagitis (CRE) in rats. Methods : The anti-oxidant activity of PC was measured by total polyphenol, total flavonoid contents, 1, 1-diphenyl-2-picrylhydrazyl (DPPH), and 2, 2'-azinobis-3-ethyl-enzothiazoline-6-sulfonic acid (ABTS) radical scavenging activity. A CRE was established surgically in SD rats. And then CRE rats were treated with water or PC 200 mg/kg body weight for 14 days. Besides, the anti-oxidant and inflammatory protein levels were evaluated using western blotting. Results : PC reduced esophagus tissues injury. The total polyphenol (36.05 ± 0.25 mg/g) and total flavonoid (72.90 ± 0.61 mg/g) of PC showed a high content. PC strongly reduced radical scavenging activities (DPPH IC50 43.58 ± 1.54 ㎍/㎖; ABTS IC50 36.75 ± 0.35 ㎍/㎖). Moreover, reactive oxygen species (ROS) and peroxynitrite (ONOO-) levels in serum, the protein expression of inducible nitric oxide synthases (iNOS) were significantly reduced. In addition, the protein expression of NADPH oxidases related to oxidative stress were significantly reduced in PC compared to CRE control. PC effectively reduced inflammatory factors including, TNF-α, and IL-6 via NF-κBp65 inactivation through the inhibition of p-IκBα and increased anti-oxidant enzyme such as HO-1, SOD, catalase, and GPx-1/2 via Nrf2 activation. Conclusions : Taken together, these results show that PC can alleviate the esophageal mucosal ulcer though the inhibition of NF-κB inflammatory and the enhancement of Nrf2 anti-oxidant pathway.
Journal of the Korean Society of Food Science and Nutrition
/
v.46
no.11
/
pp.1293-1299
/
2017
Obesity contributes to the development of diseases, such as type II diabetes, hypertension, coronary heart disease, and cancer. In addition, oxidative stress caused by reactive oxygen species (ROS) is recognized widely as a contributing factor in the development of chronic diseases. This study was examined the antioxidant and anti-adipogenic activities of epigallocatechin-3-gallate (EGCG) in 3T3-L1 preadipocytes. 3T3-L1 cells were differentiated with or without EGCG for 6 days. The production of glutathione (GSH) and the activities of the antioxidant enzymes, such as glutathione reductase (GR), glutathione peroxidase (GPx), catalase (CAT), and superoxide dismutase (SOD) were measured. EGCG inhibited significantly the lipid accumulation and the expression of adipogenic specific proteins including CCAAT/enhancer binding protein ${\alpha}$ and adipocyte fatty acid binding protein. The production of intracellular ROS was decreased significantly by EGCG in 3T3-L1 cells. EGCG increased the GSH production and the activities of GPx, GR, CAT, and SOD. Moreover, EGCG increased the protein expression of glutamate-cysteine ligase and heme oxygenase-1 in 3T3-L1 cells. These results suggest that EGCG increased the activity and expression of antioxidant enzymes and suppressed the lipid accumulation in 3T3-L1 cells. Therefore, the use of phytochemicals that can maintain the GSH redox balance in adipose tissue could be promising for reducing obesity.
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