Entomopathogenic fungus Cordyceps militaris is famous for its medicinal efficacies. It has been reported to have various pharmacological activities such as anti-tumour, insecticidal, antibacterial, immunomodulatory and antioxidant. In this study, we investigated the effect of the extract of C. militaris (MPUN8501), which was identified by the analysis of the nucleotide sequences of 5.8S ribosomal RNA, on the function of liver. C. militaris powder was extracted using hot water extracts method as time, volume and temperature and using method as differential polarity of organic solvent. Each fraction was tested for the improvement of hepatic enzyme alcohol dehydrogenase (ADH) and acetaldehyde dehydrogenase (ALDH) activity. The BuOH extracts (CME) had highest activity which was used for the test of toxicity and efficacy of C. militaris. The enhancing effect of CME on the activity of ADH and ALDH was much more than medicine, drink, natural tea etc. Thus CME promoted the resolution of alcohol and acetaldehyde in rats, inducing recovery to normal condition rapidly. Furthermore, oral administration of CME effectively protected the carbon tetrachloride-induced acute hepatic injury as revealed by the hematological parameters (levels of sGOT and sGPT) and histological observation. CME was ascertained to be safe by regulatory toxicity studies of single dose toxicity and genotoxicity. These results suggest that CME would be useful for the maintaining normal hepatic activity as a functional health food.
The optimum population of a society or country can be defined as 'the population growth path that maximizes the welfare level of the society over the whole generations of both the present and the future, under the paths allowed by its endowments of production factors such as technology, capital and labor'. Thus, the optimum size or growth rate of population depends on: (i) the social welfare function, (ii) the production function, and (iii)demographic economic interrelationship which defines how the national income is disposed into consumption(birth and education of children included) and savings on the one hand and how the demographic and economic change induced thereby, in turn, affect production capacities on the other. The optimum population growth path can, then, be derived in the process of dynamic optimization of (i) under the constraints of (ii) and (iii), which will give us the optimum population growth rate defined as a function of parameters thereof. This paper estimates the optimum population growth rate of Korea by: specifying (i), (ii), and (iii) based on the recent development of economic theories, solving the dynamic optimization problem and inserting empirical estimates in Korea as the parametric values. The result shows that the optimum path of population growth in Korea is around TFR=1.81, which is affected most sensitively, in terms of the size of the partial elasticity around the optimum path, by the cost of children, share of capital income, consumption rate, time preference, population elasticity of utility function, etc. According to a survey implemented as a follow up study, there are quite a significant variations in the perceived cost of children, time preference rate, population elasticity of utility across different socio-economic classes in Korea, which implied that, compared to their counterparts, older generation and more highly educated classes prefer higher growth path for the population of Korea.
Journal of the Society of Cosmetic Scientists of Korea
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v.36
no.2
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pp.157-165
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2010
In this study, the antioxidative effects, inhibitory effects on tyrosinase and elastase of Rhododendron brachycarpum D. Don extracts were investigated. And the moisturizing effect of cream containing R. brachycarpum D. Don extract were investigated by clinical trial. The ethyl acetate fraction of R. brachycarpum D. Don extract (1.83 ${\mu}g/mL$) showed the most prominent the free radical (1,1-diphenyl-2-picrylhydrazyl, DPPH) scavenging activity ($FSC_{50}$). Reactive oxygen species (ROS) scavenging activities ($OSC_{50}$) of R. brachycarpum D. Don extracts on ROS generated in $Fe^{3+}$-EDTA/$H_2O_2$ system were investigated using the luminol-dependent chemiluminescence assay. The 50 % extract fraction (0.064 ${\mu}g/mL$) showed the most prominent ROS scavenging activity. The protective effects of extract/fractions of R. brachycarpum D. Don on the rose-bengal sensitized photohemolysis of human erythrocytes were investigated. The R. brachycarpum D. Don extracts suppressed photohemolysis in a concentration dependent manner (1 ~ 10 ${\mu}g/mL$). The inhibitory effects ($IC_{50}$) of R. brachycarpum D. Don extracts on tyrosinase were determined with ethyl acetate fraction of R. brachycarpum D. Don extract (70.5 ${\mu}g/mL$) and aglycone fraction of extract (122.40 ${\mu}g/mL$). The inhibitory effects ($IC_{50}$) on elastase were determined with ethyl acetate of R. brachycarpum D. Don extract (43.50 ${\mu}g/mL$) and aglycone fraction of extract (20.73 ${\mu}g/mL$). The cream containing the ethyl acetate fraction of R. brachycarpum D. Don extracts was formulated for skin hydration effect and transepidermal water loss (TEWL). The cream containing R. brachycarpum D. Don extract was applied to the right lower arm. After 180 min, the water contents in skin were increased by 1 ~ 4 % than the placebo cream. And TEWL of parts was decreased as 7.7 $g/m^2h$ (experimental cream) and 8.9 $g/m^2h$ (placebo cream) respectively. These results indicate that extract/fractions of R. brachycarpum D. Don can function as antioxidants in biological systems, particularly skin exposed to UV radiation by scavenging $^1O_2$ and other ROS, and protect cellular membranes against ROS. And inhibitory activity on tyrosinase of the aglycone fraction could be applicable to new functional cosmetics for whitening and anti-wrinkle products. Also the increase of skin hydration of the cream containing extract could be applicable to new functional cosmetics for antiaging.
In order to improve some problems such as contamination of undesirable mold, mycotoxin production and excessive drying on the surface of traditional meju, we developed a capsule type-meju(CM) coated with steamed black bean and Aspergillus oryzae - rice koji(0.3%, w/w) mixture to surface of traditional meju and fermented at 25$^{\circ}C$ for 14 days under 80% relative humidity. Contamination of undesirable mold on the surface of CM was not detected within 2 weeks and some genus Penicillium molds on control meju without koji were found naturally after 12 days of fermentation. The moisture content of meju was showed to be in the range of 34.7 - 29.4% being 32.7%(w/w) of mean value. Titratable acidities in CMs prepared with black bean(BCM) and soybean(SCM) were much higher than that in control meju, and BCM was similar to SCM. Free sugar content in BCM(123.98 mg%) was 10 times and 2.1 times higher than that in control meju(15.02 mg%) and SCM(59.85 mg%), respectively. Amino type nitrogen content in control meju was 147.00 mg% and its content in BCM(255.50 mg%) was 1.37 times higher than that in SCM(187.25 mg%). Total organic acid content in BCM(95.98 mg%) and SCM(1l9.98 mg%) were much higher than that in control meju(26.44 mg%), and then lactic and malic acid contents were markedly changed according to capsulation of meju. Lightness value(L) of Hunter color index was much higher in BCM than in SCM. Fatty acid composition of CM was not different as compared to control meju. Total free amino acid content in BCM(1039.70 mg%) was 4.4 times and 2.4 times higher than that in control meju(236.45 mg%) and SCM(556.07 mg%), respectively.
Lee, Soo Jung;Kim, In Sung;Lee, Hye Jin;Oh, Soo Jeong;Shin, Jung Hye;Kim, Jeong Gyun;Sung, Nak Ju
Journal of Life Science
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v.23
no.12
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pp.1436-1444
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2013
To improve the functionality of black garlic drinks, black garlic extract (5%) and five herb extracts (1%) were mixed in 70:30 (v/v) ratios as BHF1, and BHF2 was prepared using a 3X concentration of BHF1. After the black garlic and herb formulas (BHFs) were administered over the course of five weeks in rats by interval running training, the lipid profiles and the antioxidant enzyme activities were tested. The total phenolic content of the BHFs were significantly higher in BHF2 than they were in BHF1, and their antioxidant activities were dependent upon the total phenolic content. No significant difference was found in the total serum protein levels among the rats in the Ex-con group by interval running training and the rats in the BHFs-fed groups. However, the albumin level was significantly higher in the Ex-BHF2 to Ex-con group. AST and ALT activities significantly decreased in the BHFs-fed groups compared to the Ex-con group. In terms of changes in the serum lipid profiles, no significant difference was found between the specimens that underwent interval running training and those that did not undergo interval running training. Triglyceride levels, total cholesterol, LDL-C, and HTR levels in the serum were significantly decreased in the Ex-BHF2 to Ex-con group. No significant difference was found in the total lipid levels in the livers of the BHFs-fed groups and the Ex-con group. The triglyceride levels and total cholesterol levels in the Ex-BHF2 group were significantly lower compared to another group. Hepatic catalase activity was significantly increased in the Ex-BHF2 group, but SOD and GSH-px activities were significantly increased as the concentration of the BHF. The antioxidant enzyme activities by supplementation of BHFs increased; thus, three intakes of BHF each day could improve antioxidant status against different types of oxidative stress.
This study was performed to evaluate the anti-oxidative, anti-inflammatory, anti-allergy, and whitening effects of Zizania latifolia ethanol extracts prepared from 5 different ethanol concentrations (10, 30, 50, 70, and 90%). As the ethanol concentration in the extraction solvent was increased, the radical scavenging activities also increased. The inhibitory activity of Z. latifolia ethanol extracts on nitric oxide (NO) production in lipopolysaccharide (LPS)-stimulated RAW 264.7 cells tended to increase as the content of ethanol increased. The highest inhibitory activity was obtained with 70% ethanol extract. The antiallergy effects of Z. latifolia ethanol extracts were tested by measuring the release of ${\beta}-hexosaminidase$ in IgE-sensitized RBL-2H3 cells. The suppressive effect of Z. latifolia ethanol extracts increased in a dose-dependent manner as the proportion of ethanol increased, except for the 10% ethanol extract. Furthermore, the inhibitory effects of Z. latifolia ethanol extracts against melanin production in ${\alpha}-melanocyte$ stimulated hormone (MSH)-stimulated B16F0 cells increased as the ethanol ratio increased, and 70 and 90% ethanol extracts showed similar inhibitory activities to arbutin, a positive control, at $250{\mu}m$. The present study confirmed the efficacy of Z. latifolia ethanol extracts in various areas, demonstrating antioxidative, anti-inflammation, antiallergy, skin protective, and skin whitening effects, with no cytotoxicity. It could be used as a raw material in functional foods, as well as in cosmetics.
Sustainable Development(SD) is an important concept for the future of the coastal area, and for development of fishing villages. Since 1992 UN Conference on Environment and Development in Rio de Janeiro many governments and local authorities throughout the world have been engaged in preparing and implementing $\ulcorner$Agenda 21$\lrcorner$. Many projects which previously would have been identified as environmental protection are now presented under the banner of sustainable development. Integrated Coastal Management (ICM) is an extension of sustainable development. ICM was presented as a framework for resolution of coastal use conflicts. The aim of the present paper is to assess sustainable development potential of fishing villages in Cheonsu Bay Region according to implementation of ICM. Cheonsu Bay Region was known as one of the productive fishing grounds and Cheonsu Bay Region preserved unique characteristics of traditional fishing villages. But this region is now experiencing many changes through the massive reclamation projects like Seosan A B Project. After a brief overview of concepts and history of SD and ICM, the reclamation process and its impacts on both fishery and fishing communities in Cheonsu Bay Region are discussed. According to their changing environmental and socio-economic characteristics after the reclamation, ca 35 representative coastal villages in this region can be classified into 5 types. Many coastal villages shows diversity in their economic activities, as tourism and recreation function becomes more and more important in this region. In present-day Cheonsu Bay Region, it is possible to differentiate fishing village cooperatives(FVO) with high potential of sustainable fishery development, FVOs with medium potential, FVOs with low potential on the basis of 14 selected indicators.
Proinflammatory cytokines such as tumor necrosis factor-$\alpha$(TNF-$\alpha$) have been implicated in myocardial and organ dysfunction associated with postperfusion syndrome. We tested the hypothesis that cytokine productions are depressed by preoperative cortiosteroid injection for cardiopulmonary bypass(CPB) and the postoperative courses will be better than without steriod pretreated cases. Cardiac surgery was performed in randomized blind fashion for 20 patients from June 1996 to September 1996. In the steroid group(n=10), corticosteroid(dexamethasone 1 mg/kg) was injected 1 hour before anesthetic induction, but in the control group(n=10), nothing was injected. Each of groups were sampled 11 times as scheduled for TNF-$\alpha$ bioassays. We have checked EKG, cardiac enzymes(CPK, LDH with isoenzyme), WBC count preoperative day, one day and three days after operation. Viatal signs were continuously monitored for three postoperaive days. In the postoperative period three patients in the control group had elevated body temperature and four patients had hypotension that required considerable intravenous fluid administration. But steroid injected patients showed normal body temperture and acceptable blood pressures without supportive treatment. CPK enzymes rose in control group higher than steroid group at postoperative 1st and 3rd day(CPK; 1122$\pm$465 vs 567$\pm$271, 864$\pm$42 vs 325$\pm$87), and CPK-MB enzymes rose in control group higher than steroid group at postoperative 1st day(106.4$\pm$115.1 vs 29.5$\pm$22.4)(P=0.02). Arterial tumor necrosis factor-$\alpha$ rose during cardiopulmonary bypass, peaking at 5 minutes before the end of aortic cross clamping(ACC-5min) in steroid group(11.9$\pm$4.7 pg/ml), and 5 minutes before the end of cardiopulmonary bypass(CPB-5min) in control group(22.3$\pm$6.8 pg/ml). The steroid pretreated patients had a shorter period of time in respirator suport time, ICU stay day, hospital admission day. We conclude that corticosteroid suppress cytokine production during and after cardiopulmonary bypass, and may improve the postoperative course through inhibition of reperfusion injury such as myocardial stunning and hemodynamic instability.
Background: The most important factor in preventing sternal complications is stable sternal approximation. We have tried to find the most effective sternal closure method by examining the incidence of sternal dehiscence with or without infection in patients with cardiac surgery through median sternotomy. Material and Method: This study was performed in 489 patients over 45 years of age with median sternotomy for open cardiac surgery. Simple closure with interrupted 6 wires was performed in 159 patients, figure-of-8 closure technique in 119, overlapping interrupted closure using 10 wires in 150, and combined closure technique of interrupted simple closure and figure-of-8 suture closure in 61. Two hundred thirty-four patients underwent valve and aortic operations and 213 patients coronary artery bypass surgery. Result: Sternal dehiscence with or without infection occurred in 12 (2.5 %) patients. The complication developed in 5 of 159 patients (3.1%) with six interrupted simple closure, in 4 of 119 patients (3.4%) with figure-of-8 closure, and in 3 of 150 patients (2.0%) with overlapping interrupted closure using 10 wires, but there was no complication in 61 patients with combined closure technique (relative risk for other closure techniques, p<0.05). There was no significant difference in the incidence of the sternal complication between valve and aortic operation group and coronary artery bypass group (3.0% vs 2.3%, not significant), but diabetes mellitus was a significant independent risk factor (odds ratio and multivariate analysis, p<0.05). Conclusion: The sternal closure technique that combines simple interrupted suture closure and figure-of-8 suture closure may be a more useful technique to enhance sternal stabilization compared to other closure techniques, such as simple interrupted closure, 8-figure closure, and overlapping interrupted closure.
Journal of the Korea Academia-Industrial cooperation Society
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v.17
no.10
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pp.432-438
/
2016
This study was conducted to investigate the effects of Lespedeza caneata extract on the livers of alcohol-administered mice. The study subjects were divided into a control (Con), alcohol administration (AL), alcohol and Lespedeza Caneata extract 200 mg/kg administration (AL-LC 200), and alcohol and Lespedeza caneata extract400 mg/kg administration (AL-LC 400) group. Distilled water was administrated orally to control and alcohol groups for ten days, while Lespedeza caneata extract was administered orally to alcohol and Lespedeza caneata extract groups for ten days. All experimental groups were fasted for twelve hours seven days after the oral administration, after which distilled water was administered orally to Con five times at twelve-hour intervals. At the same time, 50% ethanol (MERCK, USA) at 10 g/kg concentration was administered orally to AL and AL-LC groups five times at 12-hour intervals. The AST, ALT enzyme activation in blood and histology of the liver were then evaluated. AST and ALT in AL-LC groups were lower than in the AL group. Particularly, the AL-LC 200 and AL-LC 400 groups had significantly lower AST activation than the AL group. Histological results showed that most of the subjects in the AL group had necrosis and deformation in their livers, while fat droplets were accumulated in hepatic cells around the central vein. AL-LC 200 group revealed that a portion of the central vein was swollen, liver cells were expanded, and small fat droplets were accumulated. In the AL-CL 400 group, the central vein was normal and small fat droplets were accumulated in some liver cells. However, most of the liver cells appeared normal in the AL-CL 400 group. These results suggest that the extracts of Lespedeza caneata prevented alcohol induced liver damage in mice and have great potential for use as natural health products.
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