The objective of this study was to evaluate the protective effect of aqueous extracts from Tremella fuciformis Berk(Tf AE) against stress during long-term and short-term in ICR mice. All the animals were randomly divided into two groups which had been bred for 5 months that were treated by immobilization stress for 8 weeks (total 7 months breeding, equivalent to human beings aged 20) with or without Tf AE, and one out of two groups was continuously bred until they become 18 months old (equivalent to human beings aged 60) without Tf AE. Afterwards, the changes of serum and hepatic metabolites were investigated on the basis of the index of stress-related in vivo oxidative damage. As a result, it was found that stress increases serum triglyceride (TG) and aspartate aminotransferase (AST) and decreases serum HDL-cholesterol in the long-term (total 18 months breeding) and short-term (total 7 months breeding). In addition, stress concerned the decrease of total antioxidant status (TAS) and superoxide dismutase (SOD) as well as the increase of malondialdehyde (MDA) in liver. On the other hand, Tf AE-fed groups reversed all these biochemical indices. These results suggest that stress in one's youth causes negative results in TG, HDL-cholesterol, LDL-cholesterol, AST, TAS, SOD and MDA measured in one's senescent. The administration of Tf AE in the stressed mice decreases serum TG and AST that are increased by stress, and exerts influence on the increase of serum HDL-cholesterol. Also Tf AE recovered the values of liver TAS, SOD and MDA in the stressed mice. In conclusion, Tf AE represented protective effect in the stressed mice to some degree.
The antioxidant and anti-inflammatory activities of ethanol extract of Malus micromalus were studied in vitro. Ethanol extract of M. micromalus showed scavenging effects on 1,1-diphenyl-2-picrylhydrazyl (DPPH) and nitric oxide (NO) radicals. In addition, ethanol extract of M. micromalus inhibited the generation of superoxide anion ($O_2^-$) radical and uric acid by xanthine oxidase. We also investigated the effect of ethanol extract of M. micromalus on NO production in a lipopolysaccharide (LPS)-stimulated murine macrophage RAW 264.7 cells. Ethanol extract of M. micromalus significantly inhibited NO production and this inhibitory action was not due to the cytotoxicity. The expression of inducible nitric oxide synthase (iNOS) and cyclooxygenase-2 (COX-2) was markedly down-regulated by ethanol extract of M. micromalus. These results indicate that the inhibitory action of ethanol extract of M. micromalus on NO production in LPS-stimulated macropages might be due in part to abrogation of iNOS and COX-2 protein induction. Taken together, this study suggests that ethanol extract of M. micromalus could contribute to the chemoprevention and therapy of oxidative stress and inflammation.
Kim, In-Young;Jung, Sung-Won;Ryoo, Hee-Chang;Zhoh, Choon-Koo
Journal of the Society of Cosmetic Scientists of Korea
/
v.30
no.2
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pp.211-219
/
2004
Yew (Taxus cuspidata Sieb.) chose that grow as medicine, food, decorative plant in Korea's Kyong-Gi province surroundings. Extracts of yew extracted leaf of 250g and stems of 300g with 1,3-butylene glycol (l,3-BG), propylene glycol (PG) and water. As results, external appearance of leaf extract of yew was slightly brown clear extract. The pH was 5.3${\pm}$0.5, and specific gravity was 1.012${\pm}$0.05, and refractive index was l.375${\pm}$0.05. Also, appearance of stem's extract was slightly brown clear extract, and the pH was 5.4${\pm}$0.5, and specific gravity was 1.016${\pm}$0.05, and refractive index was 1.358${\pm}$0.05. Oil of yew separated from seeds, and extracted polysaccharide high purity from fruits. As a result, specific gravity of oil was 0.987, and obtained 40.0% of yield. Total polyphenols amount of yew extract is detected 0.563% in leaves, 0.325% in stems, whereas total tannins amount contained 0.054% and 0.037% each in leaves and stems. As effect in cosmetics, the anti-oxidative effect by DPPH method is 75.0% in leaves, and stems was 64.0%. Collagen synthesis rate was shown high activity by 54.16% in stem's extract, 33.18% in leaves' extract. Also, PPE-inhibitory activities were 13.7% and 23.5% each in leaves and stems. Anti-inflammatory effect of yew seed oil displayed superior effect of 41% than control. Polysaccharide's molecular weight that is gotten from fruits was 5${\times}$10$^4$-3${\times}$10$\^$5/ dalton, and got 20.0${\pm}$5% of yield.
Journal of the Society of Cosmetic Scientists of Korea
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v.42
no.3
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pp.269-278
/
2016
In searching for novel agents for skin anti-aging from natural resources, we found that the extract of the fruiting bodies of Ramaria formosa (R. formosa) had significant antioxidant and human neutrophil elastase (HNE) inhibitory activities. R. formosa extract exhibited a considerable DPPH radical scavenging activity with an antioxidant content of 117.0mg/mL (ascorbic acid equivalents) at the concentration of $500{\mu}g/mL$. The capacity of R. formosa extract to scavenge peroxy radicals measured by ORAC assay also showed dose-dependent antioxidant effect with $ORAC_{Roo}$ (trolox equivalents, $1{\mu}M$) values of 0.8, 5.2, and 7.8 at the concentrations of 1, 10, and $20{\mu}g/mL$. The cellular antioxidant capacity of R. formosa extract was investigated by assaying the cellular fluorescence intensity using dichlorodihydrofluorescein (DCF). The cellular oxidative stress induced by AAPH, $Cu^{2+}$ or $H_2O_2$ in HepG2 cells was significantly attenuated by more than 30% at $20{\mu}g/mL$ of R. formosa extract. HNE activity was reduced by treatment with R. formosa extract in a dose-dependent manner, and the $ED_{50}$ value for the ethanol extract of R. formosa was $42.9{\mu}g/mL$. R. formosa extract did not exhibited antimicrobial activity against four microorganisms including Bacillus subtilis (B. subtilis), Escherichia coli (E. coli), Candida albicans (C. albicans), Aspergillus oryzae (A. oryzae). Furthermore, the extract did not affect the inflammatory cytokine production of interleukin-10 and interferon-${\gamma}$ in NK92 cells. From the above results, we found that R. formosa extract has considerable antioxidant and elastase inhibitory effects, and does not stimulate immune cells. These findings suggest that R. formosa extract may be used as a bioactive component in cosmetic composition.
Shin, Gi-Hae;Lee, Young-Jun;Kim, Jae-Hwan;Kim, Young-Hyoun;Kim, Dan-Bi;Lee, Jong Seok;Lim, Jeong-Ho;Lee, Ok-Hwan
Food Science and Preservation
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v.21
no.4
/
pp.587-592
/
2014
Brassica spp. vegetables have been known to have biological activities such as anti-cancer and anti-inflammatory activities. In this study, we investigated the in vitro physicochemical characteristics and antioxidant activities of commonly used Brassica spp. sprout vegetables such as kohlabi (Brassica oleracea var. gongyloides), red radish (Raphanussativus L. var. sativus), broccoli (B. oleracea var. italica), cabbage (B. rapavar. glabra Regel), rape (B. napus), radish (R. sativus), and tatsoi (B. campestris var. narinosa) sprouts. Our results showed that the vegetables with the highest total phenolics contents were the radish sprout ($24.40{\pm}1.24mg\;TAE/g$) and kohlabi sprout extracts ($23.97{\pm}0.46mg\;TAE/g$). Furthermore, the vegetable with the highest total flavonoid content was the radish sprout extract ($15.30{\pm}1.35mg\;CE/g$). However, the kohlabi sprout extract showed the highest DPPH radical scavenging value ($IC_{50}=1.95mg/mL$) and ORAC value (79.03 mM TE/g). In addition,the six kinds of Brassica spp. sprout vegetable extracts, except tatsoi, significantly inhibited the reactive oxygen species (ROS) production and showed that intracellular oxidative stress is closely related tothe accumulation of differentiated adipocytes and fat during the adipogenesis of 3T3-L1 preadipocytes. These results suggest that Brassica spp. sprout vegetables, especially kohlabi and radish sprout extracts, can be used to develop natural antioxidants.
Park, Bum-Ho;Back, Kyung-Yern;Lee, Sang-Il;Kim, Soon-Dong
Food Science and Preservation
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v.15
no.3
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pp.461-468
/
2008
To obtain basic da1a on the preparation of Cudrania tricuspidata leaves tea, the quality and anti-oxidative characteristics of dried raw leaves (RT), pan-fired leaves tea (PT) and fermented leaves tea (FT) were investigated. General characteristics of RT, PT and FT, respectively, were: moisture content 18.47, 6.23 and 8.50%; crude protein content 17.77, 20.46 and 19.13%; and carbohydrate content 54.42, 62.52 and 61.96%. The crude lipid and ash contents were in the range 0.05 - 0.07% and 9.27 -10.74% respectively; the water soluble solid content was in the order FT > PT > RT and ranged from 23.10 - 37.38%; there were no significant differences in the total polyphenol content (815.24 - 835.16 mg%). Although $L^*$ values of PT (20.94) and FT (20.85) were lower than those of RT (34.71), the $a^*$ value in PT and the $b^*$ value in FT were highest. In all ethanol extracts the reducing power, electron-donating ability and superoxide dismutase (SOD)-like activity increased in a concentration-dependent manner. Furthermore, the activity in FT was higher than in PT or RT. The total free amino-acid content was higher in FT (1429.93 mg%) than RT (1108.94 mg%) or PT (833.13 mg%). The major amino acids were L-asparagine and L-valine in RT, L-cysteine and L-glutamic acid in PT and L-proline in FT. In a sensory evaluation of PT and FT, bitter and astringent tastes were decreased relative to RT, while sweet and savory tastes, flavor, color and overall acceptability were increased. These results indicate that FT bas a higher antioxidant effect and free-amino-acid content than PT, while the sensory quality of FT is similar to that of PT.
Choi, Seong Hyun;Jeong, Jae-Hong;Lee, Sang Duck;Son, Hwa Young;Sung, Chang;Oh, Man Jin;Kim, Seung Yeol
Korean Journal of Agricultural Science
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v.24
no.2
/
pp.283-289
/
1997
CNU O4-5 isolated from conventional Meju, which is used as raw material for making a soybean fermentation food, identified as an Aspergillus oryzae. To make koji, Aspergillus oryzae CNU O4-5 was cultured for 3-4 days at $30^{\circ}C$ with various grain materials such as flour, soybean powder, flour+soybean powder(1:1), soaked soybean and rice. The koji was evaluated for analyze the angiotesin converting enzyne(ACE) inhibition, antioxidative activity, superoxide dismutase(SOD) activity, amylase and protease activity. $\alpha$-amylase and glucoamylase activities of flour koji were higher than those of the koji soybean powder. However neutral and alkaline protease activities of flour koji were lower than those of flour+soybean powder and soybean koji. Amylase and protease activities of kojies of soaked soybean and rice showed very low level. The range of the ACE inhibition rate by hot water fraction of the kojies, which are cultured with various gain materials, were from 45% to 54%. The anti oxidative activity of ethanol-fraction of koji, which is made by using the soybean powder or soaked soybean, prolonged for 6 days in lard at $60^{\circ}C$. The SOD activity of grinded fraction of koji, which is made by using the flour or soybean powder, was same as 2,000 units per g of each koji.
The functional derangement of skeletal muscles which may be attributed to chronic hypoxia has been accepted as a possible mechanism of exercise impairment in patients with chronic obstructive pulmonary disease (COPD). The metabolic changes in skeletal muscle in patients with COPD are characterized by impaired oxidative phosphorylation, early activation of anaerobic glycolysis and excessive lactate and hydrogen ion production with exercise. But the cause of exercise limitation in patients with chronic lung disease without hypoxia has not been known. In order to evaluate the change in the skeletal muscle metabolism as a possible cause of the exercise limitation in chronic lung disease patients without hypoxia, we compared the muscular metabolic data of seven male patients which had been derived from noninvasive $^{31}P$ magnetic resonance spectroscopy(MRS) with those of five age-matched normal male control persons. $^{31}P$ MRS was studied during the sustained isometric contraction of the dominant forearm flexor muscles up to the exhaustion state and the recovery period. Maximal voluntary contraction(MVC) force of the muscle was measured before the isometric exercise, and the 30% of MVC force was constantly loaded to each patient during the isometric exercise. There were no differences of intracellular pH (pHi) and inorganic phosphate/phosphocreatine(Pi/PCr) at baseline, exhaustion state and recovery period between two groups. But pHi during the exercise was lower in patients group than the control group (p < 0.05). Pi/PCr during the exercise did not show significant difference between two groups. These results suggest that the exercise limitation in chronic lung disease patients without hypoxia also could be attributed to the abnormalities in the skeletal muscle metabolism.
The Journal of Korean Medicine Ophthalmology and Otolaryngology and Dermatology
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v.20
no.1
s.32
/
pp.80-98
/
2007
Objectives : This study was carried out to evaluate anti-oxydative, anti-tumor effect for clinical application of Whakijogyungtang (WJT) Results : 1. DPPH radical scavenging activities of WJT water extracts(Exts) were in proportion as concentration of WJT.(3 ${\mu}g/ml:12.6{\pm}2.3$ %) 2. ABTS+ scavenging activities of WJT water Exts were more effective in high density.(3 ${\mu}g/ml:4.3{\pm}1.6$ %, 10 ${\mu}g/ml$: $11.8{\pm}2.5$ %, 30 ${\mu}g/ml:45.3{\pm}3.2%$ 100 ${\mu}g/ml$: $62.7{\pm}4.8%$) 3. Hydrogen peroxide$(H_2O_2)$ scavenging activities of WJT water Exts were effective.(3 ${\mu}g/ml:4.7{\pm}0.8$ %, 10 ${\mu}g/ml: $8.2{\pm}1.6$ %, 30 ${\mu}g/ml:19.5{\pm}3.2$ % 100 ${\mu}g/ml$: $24.6{\pm}3.8$ %) 4. Anti oxidative effects against linoleic acid were not effective. 5. The generation of $O_2\;^-$ in S-180 cells were according to the concentration of WJT water Exts, specially effective over 100 ${\mu}g/ml$ concentration. 6. The SOD activities in S-180 cells were in proportion as cytotoxicity against S-180 cells of WJT water Exts. 7. The GPx activities in S-180 cells were in proportion as cytotoxicity against S-180 cells of WJT water Exts(more effective on 300 ${\mu}g/ml$ and 1000 ${\mu}g/ml$ concentration), but the catalase activities in S-180 cells were not effective. 8. The results of activites against multi-drug-resistance(MDR) of WJT were as follows. 1) In water Exts from WJT, cytotoxicity against AML-2/D100 with vincristine($IC_{50:}39.78$${\mu}g/ml$) was more effective than without vincristine($IC_{50:}$ 183.58 ${\mu}g/ml$), Cross resistance(CR:3.85) was not effective, and anti-MDR activites(RF) was effective.(RF:3.85) 2) In hexane fraction, cytotoxicity against AML-2/D100 with vincristine ($IC_{50:}130.88$${\mu}g/ml$) was more effective than without vincristine ($IC_{50:}293.10$${\mu}g/ml$) and anti-MDR activites(RF) was effective.(RF:4.61) 3) In chloroform fraction, the cytotoxicity against AML-2/WT and AML-2/D100 was not effective. 4) In ethyl acetate fraction, cytotoxicity against AML-2/D100 with vincristine($IC_{50:}36.43$${\mu}g/ml$) was more effective than without vincristine ($IC_{50:}73.07$${\mu}g/ml$), Cross resistance(CR:0.53) was not effective, and anti-MDR activites(RF) was effective.(RF:2) 5) In butanol fraction, the cytotoxicity against AML-2/WT and AML-2/D100 was not effective. 6) In $H_2O$ fraction, the cytotoxicity against AML-2/WT and AML-2/D100 was not effective. Conclusion : These result suggest that WJT has antioxidative effects, anti-tumor effects by apoptosis of free radical$(O_2\;^-)$ activity, and anti-MDR activites(especially hexane and ethyl acetate fraction).
To discover new functional materials using edible plants, antioxidant activities of methanol extracts from various parts of seven wild vegetables were investigated in vitro. Total polyphenol contents, determined by Folin-Denis method, varied from 16.74 to $130.22{\mu}g/mg$. Radical-scavenging activities of methanol extracts were examined using ${\alpha},\;{\alpha}-diphenyl-{\beta}-pirrylhydrazyl$ (DPPH) radicals and 2,2'-azino-bis(3-ethylbenzthiazoline-6-sulfonic acid) (ABTS) assay. Inhibition effects on peroxidation of linoleic acid determined by ferric thiocyanate (FTC) method and on oxidative degradation of 2-deoxy-D-ribose in Fenton-type reaction system were dose-dependent. Athyrium acutipinulum Kodama (leaf and rood), Achyranthes japonica (Miq.) Nakai (seed), and Solidago virga-aurea var. gigantea Nakai (root) showed relatively high antioxidant activities in various systems.
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